JP6037232B2 - Combine - Google Patents

Description

The present invention relates to combine with a feed supplying cereal stalks which reaped by cutting device threshing apparatus Cheng, a feed chain cover disposed outside of the feed chain.

The harvesting combine, cutting the napped grain stalks in the field with cutting device provided at the front while traveling combined, it reaped the cutting feed supplies reaper grain stalks threshing apparatus by the transfer apparatus cereal stalks Cheng and the normal cutting threshing work performing threshing while-out takeover to the auxiliary clamping扼杆auxiliary operator mowing napped grain stalks during ridges, performs threshing by placing the cutting grain stalks that reaped feed chain There is a handling work.

  Conventionally, a feed chain cover has been provided on the side of the feed chain in order to increase the safety of handling operations by auxiliary workers, and the end of the feed chain has been removed to discharge the debris adhering to the feed chain to the outside of the machine. The structure (patent document 1) which forms a notch part in the rear lower part of the feed chain cover which opposes a part is proposed.

  In addition, in order to efficiently perform the handling operation by the auxiliary worker, the handling plate extending above the feed chain during the handling operation is swung vertically at the rear end portion of the frame of the reaping device. Provide an auxiliary pin that extends above the feed chain during normal mowing and threshing work, and opens at the front end of the threshing device to swing up and down at the front end of the threshing device. A configuration (Patent Document 2) has been proposed.

  Also, in order to simplify the combine transmission mechanism and facilitate assembly, a transmission mechanism is provided that branches into a transmission path that transmits the rotation of the engine to the traveling device and a transmission path that transmits to the mowing device and the threshing device (patent) Document 3), a transmission mechanism (Patent Document 4) is provided that is branched into a transmission path that transmits the rotation of the engine to the traveling device and the reaping device and a transmission path that is transmitted to the threshing device.

JP 2012-178879 A JP 2001-258372 A Japanese Patent Laid-Open No. 5-199812 Japanese Patent Laid-Open No. 11-253039

However, in the configuration of Patent Document 1, the reaper reaped in the apparatus of many adhering to cutting cereal stalks which is taken over in the feed chain straw discharge, soil, impurities such as pebbles, falls down in the vicinity of the starting end of the feed chain There is a problem in that it accumulates on the equipment arranged below the feed chain and causes malfunction of the equipment. In addition, since the air heated by the engine is filled below the cockpit, the temperature around the cockpit increases and the operating environment deteriorates.

  Moreover, in the structure of patent document 2, when changing from a normal cutting and threshing operation to a handling operation, an operation of swinging the auxiliary clip upward to open the upper part of the feed chain, and a handling plate are provided. There is a problem that it is necessary to perform a complicated operation of swinging downward and extending above the feed chain, increasing the work load on the auxiliary worker. In addition, since the auxiliary clamp is located above the feed chain, a large work space cannot be secured above the feed chain. There is a problem that it cannot be performed efficiently.

Furthermore, transmission mechanism of Patent Document 3, for rotation is transmitted to the feed chain to supply the cereal stalks threshing apparatus and cutting apparatus is outputted from a common hydraulic stepless transmission, the driving speed of the feed chain can not be independently set with respect to the driving speed of the cutting device, there is a problem that it is not possible to optimize the feed rate of grain stalks to threshing apparatus. In addition, because the output shaft of the gear box that increases and decreases the rotation of the hydraulic continuously variable transmission and transmits it to the feed chain is projected toward the inside of the fuselage, the parts of the transmission mechanism from the gear box to the feed chain There is a problem that the number of points increases and the installation space cannot be saved.
Moreover, since the transmission mechanism of patent document 4 is transmitting a feed chain from the selection part of the threshing device via the continuously variable transmission, there existed a problem that the transmission efficiency of a feed chain was low.

  Therefore, the main problem of the present invention is to eliminate such problems.

The present invention that has solved the above problems is as follows.
The invention according to claim 1 is a reaping device (4) disposed in front of a body frame (1) on which an engine (62) is mounted, and a threshing device (3) disposed behind the reaping device (4). And a feed chain (12B) disposed along a handle (26B) formed on one side of the handling chamber (50) of the threshing device (3), and opposed to the upper side of the feed chain (12B) A combiner provided with a clamping rod (12A) arranged in a
A feed chain cover (18G) is detachably provided on the outside of the feed chain (12B), a notch (18F) is formed in the lower front side of the feed chain cover (18G), and the cutting device (4) side is provided. A support part is arranged near the terminal part of the transport device (34), and a base part of the handling restriction plate (40) extending toward the feed chain (12B) is supported on the support part so as to be vertically rotatable. Then, the handling restriction plate (40) is rotated downward to reduce the distance between the rear portion of the handling restriction plate (40) and the front portion of the clamping rod (12A). 12B), the regulation state in which the supply of the handling grain cereal to the regulation is restricted, and the handling regulation plate (40) is rotated upward so that the rear part of the handling regulation plate (40) and the sandwiching basket ( 12A) increases the distance from the front, It is configured to be switchable to a non-regulated state in which the supply of hand-held cereals to the dochen (12B) is allowed, and is supported by the support-controlling plate (40) so as to be rotatable on the support portion. A combine comprising: a front plate (41); and a rear handling plate (42) mounted on the rear portion of the front plate (41) so as to be rotatable in the vertical direction .

  The invention according to claim 2 is the combine according to claim 1, wherein an exhaust port (18H) for exhausting air heated by the engine (62) to the outside of the machine body is formed in a front side portion of the feed chain cover (18G). is there.

  According to a third aspect of the present invention, a drive sprocket (17A) for driving the feed chain (12B) is provided between the front and rear extension wheels (17B, 17B) around which the feed chain (12B) is wound. A tension sprocket (17C) for adjusting the tension of 12B) is provided between the front tensioning wheel (17B) and the drive sprocket (17A), and the upper end of the tension arm (17D) that supports the tension sprocket (17C) acts. The combine according to claim 1 or 2, wherein the side feed chain (12B) is supported by a support shaft (18a) provided on a front side portion of the upper chain rail (18A) on which the side feed chain (12B) is mounted.

Invention, the support portion, the reaping device (4) the front upper and lower round of the feed chain cereal stalk being transported (12B) and opposite to clamp the auxiliary clamping扼杆(43) from according to claim 4 The combine according to claim 1 movably mounted.

If invention according to claim 5, wherein the auxiliary nip扼杆(43) and assisted by the force from the cereal stalk which is conveyed between the feed chain (12B) clamping扼杆(43) is rotated upward, The combine according to claim 4, wherein the handling restriction plate (40) is configured to retreat and rotate upward while maintaining a constant vertical distance from the auxiliary clamp (43).

According to a sixth aspect of the present invention, a feed device (2) disposed below the fuselage frame (1) and a rotation input from the engine (62) are steplessly changed to feed the feed chain (12B) side. A hydraulic continuously variable transmission (10) that outputs to the threshing device (3) and a sorting section (51) below the handling room (50) of the threshing device (3), and the reaping device (4) is connected to the traveling device (2) A first path (A) that is driven at a speed synchronized with the traveling speed and transmits the rotation of the engine (62) to the threshing device (3) and the feed chain (12B), and the rotation of the engine (62) is the reaping device. A second path (B) for transmitting to (4), and rotation of the counter shaft (71) disposed at a position upstream of the sorting section (51) in the first path (A) co according to claim 1, wherein a is configured to be input to the variable transmission (10) Is a Vine.

The invention according to claim 7 is the first pulley (71C) for outputting the rotation of the counter shaft (71) to the handling cylinder (55) side of the handling chamber (50), the counter shaft (71), and the counter A second pulley (71E) that outputs the rotation of the shaft (71) to the sorting section (51) side, and a third pulley that outputs the rotation of the counter shaft (71) to the hydraulic continuously variable transmission (10) side The combine according to claim 6 provided with (71D).

The invention according to claim 8 includes a support member (80) for supporting the counter shaft (71) on the front wall (50A) of the threshing device (3), and in the axial direction of the counter shaft (71), The first pulley (71C) is disposed at a position biased to one side with respect to the support member (80), and the second pulley (71E) and the third pulley (71D) are arranged with respect to the support member (80). The combine according to claim 7 , which is disposed at a portion biased to the opposite side to the side on which the one pulley (71C) is disposed.

In the invention according to claim 9 , the counter shaft (71) is arranged in the left-right direction in front of the front wall (50A) of the threshing device (3), and a feed chain ( 12B) is provided with a vertical feed chain rotation shaft (35B) for rotatably supporting the outer side of the machine body, and in a side view, the hydraulic continuously variable transmission (10) is connected to the counter shaft (71) and the feed chain. It is a combine of any one of Claims 6-8 arrange | positioned in the site | part between rotating shafts (35B).

According to a tenth aspect of the present invention, a drive shaft (68D) having the drive sprocket (17A) is a portion between the feed chain rotating shaft (35B) and the counter shaft (71) in the longitudinal direction of the machine body. The combine according to claim 9 , wherein the combiner is disposed at a position between the input shaft (10A) and the counter shaft (71) of the hydraulic continuously variable transmission (10) in the vertical direction.

According to an eleventh aspect of the present invention, the driving sprocket (17A) is connected to the tip of the output shaft (68B) of the gear box (68) to which the driving force is input from the hydraulic continuously variable transmission (10). Or a coupling (68C) connected to a drive shaft (68D) that supports the drive sprocket (17A), and when the feed chain (12B) is rotated outward of the machine body, The connection between the output shaft (68B) and the drive sprocket (17A) is released, or the connection between the output shaft (68B) and the drive shaft (68D) is released, and the feed chain (12B) is placed inside the body. When rotating in the direction, the output shaft (68B) and the drive sprocket (17A) are connected, or the output shaft (68B) and the drive shaft (68D) are connected. Configuration and the a 10. Combine according.

According to the first aspect of the present invention, the feed chain cover (18G) is detachably provided on the outside of the feed chain (12B), and the notch (18F) is formed on the lower front side of the feed chain cover (18G). A support part is arranged near the terminal part of the conveying device (34) on the mowing device (4) side, and a base part of a handling restriction plate (40) extending toward the feed chain (12B) is provided on the support part. Supporting the upper and lower pivots, the handling restriction plate (40) pivots downward, and the interval between the rear part of the handling restriction plate (40) and the front part of the clamping rod (12A) is reduced. The regulation state in which the supply of hand-held cereals to the feed chain (12B) is restricted, and the rear part of the hand-handling regulation plate (40) and the sandwiching bowl as the hand-handling regulation plate (40) rotates upward. The distance from the front of (12A) is increased, (12B) is configured to be switchable to a non-restricted state in which the supply of the handle cereal meal is allowed, and the front plate (40) is rotatably supported by the support unit on the handle control plate (40). 41) and a rear handling plate (42) mounted on the rear portion of the front plate (41) so as to be pivotable in the vertical direction, it falls from the front side portion of the feed chain (12B). Dust, waste, etc. adhering to the cereal grains taken over by the feed chain (12B) are discharged to the outside of the machine body through the notch (18F) of the feed chain cover (18G), and the feed chain for dust, waste, etc. (12B) can be prevented from depositing on equipment located below the front side. Further, the supply of the hand-held cereal to the feed chain (12B) can be restricted by the hand-handling restriction plate (40), and the safety of the auxiliary worker in the state of cutting and harvesting while traveling. Can be increased. In addition, the operator can easily switch between normal mowing and threshing work and handling work, and a large space for handling work can be secured above the feed chain (12B). The work efficiency can be increased. Furthermore, the space required for rotating the handling restriction plate (40) upward can be reduced, and the combine can be downsized.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the air heated by the engine (62) is exhausted to the outside of the fuselage at the front side portion of the feed chain cover (18G). Since the opening (18H) is formed, the air heated by the engine (62) can be efficiently exhausted outside the machine body.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the upper end portion of the tension arm (17D) supporting the tension sprocket (17C) is connected to the feed chain (12B) on the working side. Since it is supported by a support shaft (18a) provided on the front side portion of the upper chain rail (18A) to be mounted, a large movable range of the tension sprocket (17C) is secured, and the tension fluctuation generated in the feed chain (12B). Can be suppressed. In addition, the tension arm (17D) can be more efficiently discharged to the outside of the machine body such as dust and waste without being disturbed when discharged to the outside of the machine body such as dust and waste.

According to the invention described in claim 4 , in addition to the effect of the invention described in claim 1 , the front part of the auxiliary clamp (43) is attached to the support part so as to be vertically rotatable. Maintenance / inspection work (12B) can be easily performed, and the number of parts can be reduced.

According to the invention described in claim 5 , in addition to the effect of the invention described in claim 4 , when the auxiliary clamp (43) is rotated upward, the handling restriction plate (40) is provided with the auxiliary clamp. Since it is configured to retreat upward while maintaining a constant vertical distance from the straw (43), the amount of grain straw supplied to the feed chain (12B) increases in the mowing and threshing operation. However, the handling restriction plate (40) retreats and rotates upward along with the displacement of the auxiliary clamp (43), so that the conveyance resistance of the cereals by the handling restriction plate (40) is reduced. The threshing of the cereals to the threshing device (3) can be facilitated.

According to the invention described in claim 6 , in addition to the effect of the invention described in claim 1 , the rotation of the counter shaft (71) disposed at the upstream side of the sorting section (51) in the first path (A). Is input to the continuously variable transmission (10) that drives the feed chain (12B), the feed speed of the feed chain (12B) can be set independently of the feed speed of the mowing device (4). The transmission efficiency of 12B) can be increased.

According to the seventh aspect of the invention, in addition to the effect of the sixth aspect of the invention, from the counter shaft (71), the handling cylinder (55), the selecting portion (51), and the hydraulic continuously variable transmission (10). Therefore, the transmission structure of the threshing device (3) can be simplified, and the combine body can be made compact.

According to the invention described in claim 8 , in addition to the effect of the invention described in claim 7 , in the axial direction of the counter shaft (71), the first pulley (71C) is located on one side with respect to the support member (80). The second pulley (71E) and the third pulley (71D) are arranged in a portion biased to the side opposite to the side on which the first pulley (71C) is arranged with respect to the support member (80). Because of the arrangement, the countershaft (71) is transmitted to the handling cylinder (55) having a large bending load and load applied by the transmission member to the sorting section (51) and the hydraulic continuously variable transmission (10). By dispersing the bending load applied by the member on both sides of the support member (80), it is possible to prevent the counter shaft (71) from being deformed and to improve durability and to improve transmission efficiency.

According to the ninth aspect of the invention, in addition to the effect of the invention according to any one of the sixth to eighth aspects, in the side view, the hydraulic continuously variable transmission (10) is connected to the counter shaft (71). And the feed chain rotating shaft (35B), the hydraulic continuously variable transmission (10) can be compactly arranged by effectively utilizing the space in front of the threshing device (3). .

According to the invention described in claim 10 , in addition to the effect of the invention described in claim 9, the drive shaft (68D) provided with the drive sprocket (17A) for driving the feed chain (12B) is fed in the longitudinal direction of the body. A portion between the chain rotation shaft (35B) and the counter shaft (71), and a portion between the input shaft (10A) and the counter shaft (71) of the hydraulic continuously variable transmission (10) in the vertical direction. Therefore, transmission to the feed chain (12B) can be easily performed.

According to the eleventh aspect of the invention, in addition to the effect of the tenth aspect , when the feed chain (12B) is rotated toward the outer side of the machine body, the output shaft (68B) and the drive sprocket ( When the connection of 17A) is released and the feed chain (12B) is rotated inward of the fuselage, the output shaft (68B) and the drive sprocket (17A) are connected. During the maintenance / inspection work of the case (20), the gear box (68) is not transmitted to the feed chain (12B), and the safety of the maintenance / inspection work is increased.

It is a left view of a combine. It is a top view of a combine. It is a principal part left view of a threshing apparatus. It is principal part sectional drawing of a threshing apparatus. It is a principal part front view of a combine. It is a principal part front view of a combine. It is attachment explanatory drawing of the hydraulic type continuously variable transmission for feed chains. (A) of the hydraulic continuously variable transmission for feed chains is an enlarged sectional view, and (b) is an enlarged side view. It is a principal part transmission mechanism figure of a combine. It is a connection diagram of a control device. It is explanatory drawing of the 1st drive method of a feed chain. It is explanatory drawing of the 2nd drive method of a feed chain. It is explanatory drawing of the 1st stop method of a feed chain. It is explanatory drawing of the 2nd stop method of a feed chain. It is a principal part left view of a conveying apparatus. It is a principal part top view of a conveying apparatus. It is a left view of the handling lever at the time of normal cutting and threshing work. It is a left view of the handle lever at the time of a handle operation. It is a top view of a handle lever. It is attachment explanatory drawing of the hydraulic continuously variable transmission for other feed chains. It is a principal part left view of another threshing apparatus. It is the left side of the principal part of a feed chain cover and a belt cover. It is a principal part front surface of a feed chain cover and a belt cover.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, although the direction is shown and demonstrated for convenience for easy understanding, the configuration is not limited by these.

As shown in FIGS. 1 and 2, the combine is provided with a traveling device 2 including a pair of left and right crawlers for traveling on the soil surface below the machine frame 1, and threshing / sorting on the upper left side of the machine frame 1. provided threshing apparatus 3 that performs, cutting device 4 to harvest fields of grain rods is provided in front of the threshing apparatus 3. The grain threshed and selected by the threshing device 3 is stored in a Glen tank 5 provided on the right side of the threshing device 3, and the stored grain is discharged to the outside by the discharge cylinder 7. In addition, on the upper right side of the fuselage frame 1, there is provided a cockpit 6 on which a driver is boarded, and an engine room 8 on which an engine 62 is mounted is provided below the cockpit 6.

(Reaping device)
The cutting device 4 is formed by a post-cutting frame 28, a cutting transmission case 29 that is laterally provided at the front end of the post-cutting frame 28, and a connecting frame 29A that is erected in the vertical direction from the cutting transmission case 29. It is attached to the cutting frame 30 which becomes the main frame. The base part of the post-cutting frame 28 is attached to a portion that is biased to the right side of the horizontal transmission cylinder 36 that is pivotally supported on the upper part of a pair of left and right suspension stands 35, 35 erected on the body frame 1. .

Cutting device 4, and minute grass rod 31 which divides grass UeTatsuKoku culm provided in the lower front, and causes device 32 to cause lodging was UeTatsuKoku culm provided behind the divided grass rod 31, causing device a cutting blade device 33 for cutting the UeTatsuKoku culms strains source provided in the lower rear of the 32, the reaper grain stalks provided behind the inking unit 32 and the cutting blade 33 on one side of the threshing apparatus 3 And a conveying device 34 that conveys toward the provided threshing portion conveying device 12. Conveying device 34 includes a strain former conveying device 34A for carrying the strain base side of the cutting grain stalks, is composed of a tip carrying device 34B for conveying the tip side, also, to the threshing section conveying device 12 from the conveying device 34 in order to prevent falling of grain culm when taking over the inner portion of the front end of the threshing section conveying device 12 (the right side) is over the front end of the threshing chamber 50 from the rear end of the transport apparatus 34, the support A body 37 is provided.

As shown in FIG. 15, at the rear end of the frame 4A of the reaping device 4 (the “supporting portion” in the claims), a bracket 38C for attaching the front auxiliary clamp and the deformation amount of the front auxiliary clamp are detected. bracket 38D for mounting the cereal stalks sensor 34C that is provided. The front end of the frame 4A is attached to a connecting frame 29A that is erected on the left side of the cutting transmission case 29 of the cutting frame 30, and tilts upward from the front toward the rear, and the rear end is the feed chain. It faces the front upper side of 12B.
The front auxiliary clamp has an upper auxiliary clamp made of a spring plate or the like and a lower auxiliary clamp. The front end portion of the upper auxiliary clamp is attached to a bracket 38C attached to the end portion of the frame 4A by a fastening member such as a bolt, and the rear end portion extends to the start end portion of the feed chain 12B. . The front end portion of the lower auxiliary clamp is attached to a bracket 38C attached to the end of the frame 4A so as to cover the upper auxiliary clamp from the lower side by a fastening member such as a bolt. The part extends to the front side of the clamping rod 12C.
In addition, the width in the left-right direction of the upper auxiliary clamp and the lower auxiliary clamp is formed narrower than the width in the horizontal direction of the feed chain 12B, and the lower auxiliary clamp is formed in the feed chain 12B. It is placed between the left and right outer plates.

Cereal stalks sensor 34C is attached by a fastening member such as a bolt to a bracket 38D mounted to the end portion of the frame 4A. Incidentally, cereal stalks sensor 34C, as shown in FIG. 15, it is preferable to arranged the two cereal stalks sensor 34C, 34C in the longitudinal direction to the bracket 38D.

Cereal stalk sensor 34C arranged on the front side, the cereal stalks which is taken over from the conveying device 34 to the feed chain 12B detects the presence or absence. That is, when the cereal stalk that is taken over from the conveying device 34 to the feed chain 12B is present, the rear end portion of the upper auxiliary clamping扼杆moves upwards, arranged the rear end of the upper auxiliary clamping扼杆is on the front side pressing the cereal stalks sensor 34C that is. On the other hand, if the grain culm is not, the rear end portion of the upper auxiliary clamping扼杆maintains a state of being extended in the starting end of the feed chain 12B.

Cereal stalk sensor 34C arranged on the rear side, detects the jamming of grain stalks to be taken over from the conveying device 34 to the feed chain 12B. That is, when the cereal stalk that is taken over from the conveying device 34 to the feed chain 12B is jammed at the front side of the feed chain 12B moves the rear end portion of the lower auxiliary clamping扼杆is upward, the lower auxiliary Kyo扼pressing the cereal stalks sensor 34C that an intermediate portion is disposed on the rear side of the rod. On the other hand, when there is no clogging of cereal culm, the rear end of the lower auxiliary clamping扼杆maintains a state of being placed on the upper side of the feed chain 12B. Incidentally, in particular, that switches the transport speed of the feed chain 12B in accordance with the output value of the cereal stalk sensor 34C arranged on the rear side is preferable.

The end of the frame 4A, as shown in FIG. 15 and 16, the side auxiliary clamping扼杆(auxiliary nip扼杆) 43 after feed chain 12B and the holding cereal stalks conveyed to the feed chain 12B from the conveying device 34 A hand control plate 40 for operating a mode switch 46 for switching between normal mowing and threshing work and hand work is provided in place of a mode switch 6B disposed on a handle cover 50D described later.

The front end of the rear auxiliary clamp 43 made of a spring plate or the like is swingably supported by a shaft 44A that extends in the left-right direction and is attached to a bracket 44 attached to the end of the frame 4A. The portion extends rearward along the lower side of the clip 12C and extends to the rear side of the front end of the clip 12C. The lateral width of the rear auxiliary clamp 43 is formed to be narrower than the lateral width of the feed chain 12B. The rear auxiliary clamp 43 is formed by the left and right outer plates of the feed chain 12B. It is listed in between. Further, the shaft 44A is disposed in parallel with the drive shaft 68D for driving the feed chain 12B and the support shaft of the tensioning wheel 17B.
The rear auxiliary clamp 43 secures a wide maintenance / inspection work space after opening the barrel cover 50D and moving the clamp 12C upward during maintenance / inspection work of the feed chain 12B and the like. Therefore, it can be swung counterclockwise around the axis 44A as viewed from the left side of the aircraft.

  The handling restriction plate 40 includes a front plate 41 made of a channel material having a substantially U-shaped cross section, and a front end portion on a shaft 41B that is attached to the rear end portion of the front plate 41 and extends in the left-right direction. Is configured to have a rear plate 42 having a substantially I-shaped cross section that is swingably supported.

  The front end portion of the front plate 41 is swingably supported by a shaft 44 that supports the front end portion of the rear auxiliary clamp 43, and the outer surface of the left side plate of the front end portion is below the front side of the shaft 44 </ b> A of the bracket 44. A substantially semicircular arc-shaped actuating portion 41 </ b> A for pressing the mode switch 46 attached to is attached. Further, a shaft 41 </ b> B extending in the left-right direction for swingably supporting the front end portion of the rear plate 42 is mounted between both side plates at the rear end portion of the front plate 41. In the present embodiment, the front plate 41 and the rear auxiliary clamp 43 are supported on the same shaft 44A, but can be supported on different shafts.

As shown in FIGS. 17 to 19, the operating portion 41 </ b> A is formed in a semicircular arc shape toward the front side (in the state shown in FIG. 17, an arc shape extending from the 6 o'clock position to the 12 o'clock position). The center of is located offset from the axis of the shaft 44A (in the state shown in FIG. 17, biased forward and upward relative to the shaft 44A). In addition, as shown in FIG. 17, the operating part 41A is configured so that the lower part of the operating part 41A and the terminal part 46A of the mode switch 46 do not come into contact with each other when the handling restriction plate 40 is in the restricted state. When the hand-handling restricting plate 40 is positioned in a non-restricted state as shown in FIG. 18, with a certain distance between the lower portion of the operating portion 41A and the terminal portion 46A of the mode switch 46. Are arranged so that the upper part of the operating part 41A and the terminal part 46A of the mode switch 46 are in contact with each other, and the upper part of the operating part 41A presses the terminal part 46A of the mode switch 46.
Further, as the handling restriction plate 40 swings counterclockwise, the distance between the upper portion of the operating portion 41A and the terminal portion 46A of the mode switch 46 is narrowed, and the upper portion of the operating portion 41A is connected to the mode switch 46. The terminal portion 46A is pressed more strongly.
The shape of the operating portion 41A is not limited to the above shape, and is formed in a 1/4 arc shape (arc shape from 9 o'clock to 12 o'clock) toward the front side, and the center of the 1/4 arc shape is formed. A shape that is biased to the front side of the axis of the shaft 44A, a 1/4 arc shape (arc shape from 9 o'clock to 12 o'clock) toward the front side, and a linear portion that is inclined downwardly from the lower end of the arc, For example, the center of the four arcs may be shifted to the front side of the axis of the shaft 44A.

As a result, when the front plate 41 is swung counterclockwise around the shaft 44A as viewed from the left side of the machine body to switch from the normal mowing and threshing operation to the handling operation, the traveling device 2 travels. Even when vibration or the like is propagated to the front plate 41, the terminal portion 46A of the mode switch 46 and the operating portion of the front plate 41 are moved as the front plate 41 is swung counterclockwise about the shaft 44A. The interval of 41A becomes narrow, and the terminal part 46A of the mode switch 46 can be reliably pressed and the ON state can be maintained.
On the other hand, when the front plate 41 is swung clockwise around the shaft 44A as viewed from the left side of the machine body to switch from the handling operation to the normal mowing and threshing operation, the detection state of the mode switch 46 Can be gradually changed from the ON state to the OFF state.
When switching from normal mowing and threshing work to handling work, the operator is warned by a monitor or the like arranged in front of the cockpit 6 in order to maintain the safety of the auxiliary worker. .

  As the mode switch 46, it is also possible to use a detection sensor that detects switching from a normal mowing and threshing operation to a handling operation mode or the like by contact between the terminal portion 46A of the mode switch 46 and the operating portion 41A of the front plate 41. it can. However, in order to prevent the detection state (ON / OFF state) from becoming unstable due to vibration generated by the traveling of the traveling device 2 or the like, when the terminal portion 46A of the mode switch 46 is displaced more than a certain amount, the certain state is exceeded. It is preferable to use a displacement sensor or a pressure sensitive sensor that detects switching from a normal mowing and threshing operation to a handling operation mode or the like.

When a displacement sensor is used as the mode switch 46, it is possible to output an output value corresponding to the amount of displacement that the terminal portion 46A is displaced by being pressed by the operating portion 41A.
As described above, when a displacement sensor is used as the mode switch 46, the mode switch 46 corresponding to the swing position of the front plate 41 that switches the control device 85 from the normal mowing and threshing operation to the handling operation in advance. Of the terminal portion 46A of the mode switch 46 corresponding to the swing position of the front plate 41 for switching from the handling operation to the normal cutting and threshing operation (threshold value). By setting B), even if the vibration due to traveling of the traveling device 2 changes significantly due to the soil surface, the change of work can be easily changed by changing the thresholds A and B, and stable The work can be switched.

  The front end portion of the rear plate 42 is swingably supported by a shaft 41B attached to the rear end portion of the front plate 41, and the front side portion 42A inserted inside the front plate 41 has a cross section of substantially I. The rear side portion 42 </ b> B that extends backward from the rear end of the front plate 41 also has a substantially I-shaped cross section.

At the time of normal mowing and threshing, the handling restriction plate 40 is swung clockwise around the shaft 44A to be formed between the rear end of the frame 4A and the front end of the clip 12C. When the handling operation is performed, the handling control plate 40 is swung counterclockwise about the shaft 44A to sandwich the rear end of the frame 4A. It is set as the non-restriction state which open | releases the space above the rear side auxiliary clamp 43 formed between the front-end parts of 12C.
That is, rotates rowing regulating plate 40 downward, to shrink the distance between the front of the rear and Kyoji杆12A of the rowing regulating plate 40, grain threshing hand to the feed chain 12B culm The regulation state in which the supply of feed is regulated, the handling handle plate 40 rotates upward, the distance between the rear part of the handling handle plate 40 and the front part of the clamping rod 12A is increased, and the feed chain 12B it is a cut-switched configuration and a non-restricted state in which the supply of rowing cereal stalk is allowed to.

  In the restricted state, in the plan view, the front plate 41 extends rearward from the shaft 44A to cover the top end of the feed chain 12B, and the rear plate 42 extends rearward from the front plate 41. It is provided and reaches the rear of the front end portion of the scissors 12C and is disposed on the left side of the feed chain 12B. Further, when viewed from the side, the front plate 41 is gently inclined rearward and upward from the shaft 44A, and the rear plate 42 is gently inclined rearward and rearward from the front plate 41. And reaches the rear of the front end portion of the clip 12C.

The front plate 41 maintains the restricted posture by the lower stopper 41C provided at the intermediate portion thereof coming into contact with the upper edge of the support member 43A provided at the base of the auxiliary clamp 43, and the rear plate 42 maintains the regulated posture by bringing the front end portion of the rear plate 42 into contact with the rear portion of the front plate 41. In order to enhance the safety of the auxiliary worker, the front end of the front plate 41 is preferably disposed on the front side of the front end of the feed chain 12B, and is disposed on the upper side of the conveying device 34 that prevents scattering of dust and the like. It is preferable to arrange the rear dustproof cover 49A on the rear side of the rear end.
Further, in order to prevent overhanging from the machine body, it is preferable to arrange the right surface of the front plate 41 on the inner side of the left end side of the rear dustproof cover 49B arranged on the upper side of the transport device 34. As shown in FIG. 17, the rear plate 42 can swing around the shaft 41A at the rear end of the front plate 41, so that the handling plate 40 can be used without removing the rear dust-proof cover 49B. Can be swung vertically.

  In the non-restricted state, the front plate 41 extends from the shaft 44 </ b> A to the front and inclines in the side view, and the rear plate 42 is substantially horizontal from the shaft 41 </ b> B of the front plate 41 to the front. It is extended to. The front plate 41 maintains a non-restricted posture by contacting the upper surface of the front plate 41 with an upper stopper 44 </ b> C erected on the bracket 44, and the rear plate 42 is a rear side portion 42 </ b> B of the rear plate 42. The non-regulated posture is maintained by contacting the upper surface of the front plate 41 with the rear portion of the front plate 41. In order to prevent fluctuations in the regulated and non-regulated postures of the front plate 41 due to the propagation of vibration and the like, and to easily swing the front plate 41, the rear portion of the transport device 34 and the left surface of the front plate 41 are It is preferable that the front plate 41 is biased to the restricted state posture and the non-restricted state posture by connecting with a spring-like spring across the shaft 44A.

Further, in order to maintain good posture of cereal stalks which are taken over by the threshing section feeder 12 from conveying device 34, at a site offset to the right of the upper or lower surface of the support member 37 which faces the tip carrying device 34B, the auxiliary conveyor A device can also be arranged.

The auxiliary transporting device, in order to convey the tip of grain stalks that are carried over from the tip carrying device 34B to the feed chain 12B, lugged belt moving from the front to the rear, the impact with the belt are provided. Further, the rotation of the counter shaft 71, which will be described later, is transmitted to the auxiliary transport device via the output shaft B of the feed chain hydraulic continuously variable transmission ("hydraulic continuously variable transmission" in the claims) 10. Therefore, it is preferable that the moving speed of the belt with the lugs is the same as the moving speed of the feed chain 12B. In place of the feed chain hydraulic continuously variable transmission (hydraulic continuously variable transmission) 10, a hydromechanical continuously variable transmission configured by combining a hydrostatic continuously variable transmission and a planetary gear is used. Also good.

As shown in FIGS. 3 to 5, the left suspension base 35 is attached to the upper side of a base 35 </ b> A erected on the body frame 1. A feed chain rotation shaft 35 </ b> B extending in the vertical direction is provided at the front portion on the left side of the suspension base 35 so as to rotatably support the base portion of the lateral transmission frame 35 </ b> C that pivotally supports the left side portion of the lateral transmission cylinder 36. Yes. Further, the horizontal transmission frame 36 is rotated around the feed chain rotation shaft 35B to facilitate maintenance / inspection work of the weed pod 31 and the pulling device 32 of the cutting device 4, etc. 35C is formed in the circular arc shape which has a convex part in the downward direction from the base part to the front-end | tip part in front view. As described below, also the threshing section conveying device 12 for conveying the cereal stalks which rotates about the feed chain rotating shaft 35B.

  The right suspension base 35 is attached to the upper side of a base 35 </ b> A erected on the body frame 1. A support member 35 </ b> D that pivotally supports the right side portion of the lateral transmission cylinder 36 is attached to the upper end portion of the suspension base 35. The support member 35D includes a front support member and a rear support member that are divided into substantially semicircular arcs. When the right side portion of the lateral transmission cylinder 36 is pivotally supported, the lateral transmission cylinder 36 is centered on the feed chain rotation shaft 35B in order to engage the front and rear support members and perform maintenance of the cutting device 4 or the transmission 65. When the cutting device 4 is moved to the left side, the front and rear support members are disengaged and the lateral transmission cylinder 36 is pulled forward. In addition, in order to increase the rigidity against deformation of the left and right suspension bases 35, 35, a connecting frame 35E is installed at an intermediate portion in the vertical direction of the left and right suspension bases 35, 35.

  The rotation of the engine 62 is transmitted to the traveling hydraulic continuously variable transmission 66 via a pulley 66B supported by the input shaft of the traveling hydraulic continuously variable transmission 66, and is transmitted to the traveling hydraulic continuously variable transmission 66. The transmitted rotation is supported by the right end portion of the lateral transmission shaft 36A housed in the lateral transmission cylinder 36 via a pulley (not shown) supported by the output shaft of the traveling hydraulic continuously variable transmission 66. It is transmitted to the pulley 36A and rotates the lateral transmission cylinder 36 and the lateral transmission shaft 36A. The rotation transmitted to the lateral transmission shaft 36 </ b> A is transmitted to the pulling device 32, the cutting blade device 33, the conveying device 34, etc. of the reaping device 4 through transmission shafts (not shown) housed in the frames 27 and 28. Is done.

  The rotation of the engine 62 is transmitted to the traveling hydraulic continuously variable transmission 66 via a pulley 66B supported by the input shaft of the traveling hydraulic continuously variable transmission 66, and the traveling hydraulic continuously variable transmission for traveling. The rotation transmitted to 66 is transmitted to the left and right crawlers of the traveling device 2 via the transmission 65.

(Threshing device)
Threshing device 3, as shown in FIG. 4, comprises a threshing chamber 50 for threshing grain stalks to the front side of the upper, sorting chamber for the sorting of grain which has been threshed below the threshing chamber 50 (selection unit) 51 is provided.
In the handling chamber 50, a handling cylinder 55 having a plurality of teeth is supported on a handling cylinder shaft that is pivotally supported by the front and rear walls 50A and 50C. A cereal supply port 26A is opened at the lower left side of the front wall 50A of the handling chamber 50, a handling port 26B is opened along the handling cylinder 55 at the lower side of the left wall 50B, and the lower left side of the rear wall 50C. The evacuation port 26C is opened. Further, the threshing section conveying device 12 for conveying backward sandwich the strain base cereal stalks along the threshing port 26B on the left side of the threshing chamber 50 is arranged, it is threshing conveyed by threshing section feeder 12 completed HaiwaraKoku culm, after being further transported rearward taken over straw discharge conveying device 58 provided behind the threshing section feeder 12 is discharged to the outside is cut by a pair of straw discharge cutter 59 .

  A swing sorting device 52 is provided in the upper part of the sorting chamber 51, and a lower part of the sorting chamber 51 includes a first tang 53 A for blowing air to a sheave in front of the swing sorting device 52, and a swing sorting device. Kernel 53B that collects the spilled grain, the second tang 53C that blows air to the sheave at the rear of the oscillating sorter, and the cereals that are attached to the branch stem that leaks from the sway sorter A second receiving rod 53D for collecting the (second item) is installed in order from the front side. The grain recovered by the first receiving box 53B is transferred to the Glen tank 5 by the first transfer spiral 53b installed in the first receiving box 53B, and the grains and the like recovered by the second receiving box 53D are two. It is transferred to the second processing chamber by a second transfer spiral 53d built in the number receiving basket 53D.

  The rear part on the right side of the handling chamber 50 communicates with the dust treatment chamber. Inside the dust treatment chamber, a dust treatment cylinder 57 having screw blades on its outer peripheral surface is pivotally supported in the front-rear direction. A second processing chamber for processing and reducing the second product is provided on the front side of the chamber. In the second processing chamber, a second processing cylinder 56 having intermittent spiral blades on the outer peripheral surface is pivotally supported. In addition, a dust exhaust fan 48 is provided on the upper rear side of the oscillating sorting shelf to suck and discharge the waste generated during threshing and sorting.

(Threshing part transport device)
As shown in FIGS. 3 and 6 and the like, the threshing section transporting device 12 includes a clamping rod 12A located on the upper side and a feed chain 12B located on the lower side. The clamping rod 12A is urged toward the feed chain 12B by the urging means 14 such as a spring with respect to the handling cylinder cover 50D of the handling chamber 50. The feed chain 12B is wound around and driven by tensioning wheels 17B and 17B rotatably supported on the front and rear ends of the upper chain rail 18A, and a drive sprocket 17A provided between the tensioning wheels 17B and 17B. Is an endless chain. Feed Cheng 12B of the Ueno the upper chain rail 18A-working sandwiches a strain base clamping lever 12A and cereal stalk in the process of moving from the front toward the rear. Incidentally, the use of idle sprockets in order to prevent the winding of the end portion or the like, Zhang設輪17B of the rear side which is provided with winding prevention plate on both sides of the feed chain 12B of cereal stalks conveyed Is preferred.

On the side surface of the barrel cover 50D, the auxiliary worker who is performing the handling operation can easily adjust the speed VF1 of the feed chain 12B during the handling operation to improve workability. A dial 6A is provided. The peripheral side auxiliary clamping扼杆43 after the mounting on to the speed adjustment of the speed VF of the feed chain 12B efficiently, cereal stalks threshing hand governor dial 6A in accordance with the rowing cereal stalk weight The speed control dial 6A can also be arranged on the side panel of the cockpit 6 in order to efficiently assist an assistant worker who is not familiar with the pilot seated in the cockpit 6.
In addition to the speed control dial 6A, or instead of the speed control dial 6A, a speed control pedal 45 for adjusting the speed VF of the feed chain 12B during the handling operation is provided on the machine body frame 1 in front of the threshing device 3. You can also

  In a side view, the sandwiching trough 12A is provided with a slope that rises rearward along the handling opening 26B from the grain supply port 26A to the discharge opening 26C of the handling chamber 50. The upper chain rail 18A on which the feed chain 12B on the working side is mounted tilts rearward and upward from the front front end of the horizontal shaft transmission cylinder 36 and then gently tilts rearward and forward of the grain supply port 26A of the handling chamber 50. After arriving, it faces and rises backward along the handling opening 26B from the grain supply port 26A of the handling chamber 50 to the discharge opening 26C, facing the holding bowl 12A. Then, after extending horizontally from the discharge port 26C, it tilts backward and reaches the rear end behind the front end of the tip conveying device 34A. In order to easily change the length in the front-rear direction of the threshing section conveying device 12 in accordance with the change in the number of cutting lines of the mowing device 4, the upper chain rail 18A preferably has a split structure that can be divided in the front-rear direction. is there.

  The lower chain rail 18B on which the non-working-side feed chain 12B is mounted is inclined upward from the front end above the counter shaft 71 that transmits the rotation of the engine 62 to the drive sprocket 17A and reaches the rear end. The rear end of the lower chain rail 18B is provided in front of the rear extending wheel 17B and below the discharge port 26C.

  A guide 18D for guiding the non-operating feed chain 12B to a drive sprocket 17A provided below the front end of the lower chain rail 18B is detachably attached to the front end of the lower chain rail 18B. . The guide 18D is provided above the counter shaft 71 and has a substantially quarter circle shape. In addition, it is preferable to provide a cover (not shown) above the guide 18D in order to prevent the counter shaft 71 and the like from being soiled by dropping of oil or the like.

  On the lower side of the lower chain rail 18B, an upper chain rail 18A and a support frame 19 that supports the lower chain rail 18B are provided by a rail connecting plate 18C. That is, the feed chain 12 </ b> B is supported by the support frame 19. Further, on the left side surfaces of the upper chain rail 18A and the lower chain rail 18B, two detachable feed chain covers 18G for preventing auxiliary workers from accidentally contacting the feed chain 12B are attached to the front and rear two connecting plates 18E. Is provided.

  In order to prevent the sawdust falling from the feed chain 12B from accumulating on the feed chain hydraulic continuously variable transmission 10 and the gear box 68 provided below the feed chain 12B, FIG. As shown, a notch 18F is formed in the lower front portion of the feed chain cover 18G to discharge the sawdust falling from the feed chain 12B to the outside of the machine body.

In order to prevent the sawdust falling from the feed chain 12B from adhering to the drive sprocket 17A and the tension sprocket 17C and to reduce the frequency of maintenance work, in a side view, the tension sprocket 17C of the feed chain cover 18G It is preferable to form the notch 18F from a portion facing the lower side of the front side portion to a portion facing the lower side of the rear side portion of the guide 18D.
Further, in order to prevent the sawdust discharged outside from the notch portion 18F from reversing, the notch portion 18F is biased to the left side of the left side surface 54A of the belt cover 54 as shown in FIG. It is preferable to form them.

At the front side of the feed chain cover 18G, an exhaust port formed of punching metal is used to exhaust air heated by the engine 62 after being sucked into the engine room 8 by a cooling fan (not shown) to the outside of the machine body. 18H is provided.
In addition, the exhaust port 18H is provided at a portion facing the drive sprocket 17A, the tension sprocket 17C, and the guide 18 in the left side view, and in order to prevent scattering of the threshed grain to the outside of the machine body, The mesh of the punching metal is formed smaller than the grain. Further, in order to increase the efficiency of the wet handling work, the air heated by the engine 62 exhausted from the exhaust port 18H is directed to the air port 54B provided at a position facing the first tang 53A in the belt cover 54. It is preferable that the punching metal is provided so as to be exhausted.

  As shown in FIGS. 3 and 5, the front end of the support frame 19 is attached to a plate 19A attached to a bracket 19B with bolts or the like. The bracket 19B is a feed chain rotating shaft provided on the left suspension base 35. It is rotatably attached to the upper and lower ends of 35B. When the feed chain 12B is rotated around the feed chain rotating shaft 35B, the feed chain rotating shaft 35B is wound around the feed chain 12B in order to reduce the intrusion of the front end portion of the feed chain 12B into the machine body. It is erected near the rear side of the front tensioning wheel 17B.

  In order to prevent interference with the feed chain hydraulic continuously variable transmission (hydraulic continuously variable transmission) 10 and the like, the support frame 19 has a feed chain hydraulic continuously variable transmission 10 from the front end in a side view. After extending rearwardly between the input shaft 10A and the output shaft 68B of the gear box 68, it is curved approximately 90 degrees in front of the first transmission motor 10C and extends upward. Then, after extending the front of the counter shaft 71 upward, it tilts upward from the lower side of the guide 18D along the lower side of the lower chain rail 18B, and substantially extends in the front-rear direction of the lower chain rail 18B. It reaches the center.

As a result, when maintenance / inspection of the feed chain 12B, the feed chain hydraulic continuously variable transmission 10 and the like is performed, the support frame 19 is rotated about the feed chain rotation shaft 35B to thereby feed the feed chain 12B. This can be done easily by separating the rear part from the main body of the threshing device 3. In order to facilitate maintenance and inspection of the feed chain hydraulic continuously variable transmission 10, the feed chain rotating shaft 35 </ b> B is erected in front of the front portion of the feed chain hydraulic continuously variable transmission 10. ing.
Further, when the support frame 19 is rotated to the maximum about the feed chain rotation shaft 35B, in order to prevent interference between the start end of the feed chain 12B and the cutting device 4, the start end of the feed chain 12B and the stock A predetermined interval is provided between the connecting frame (not shown) of the supply adjustment chain provided on the rear side of the original conveying device 34B.

  In a side view, the front tensioning wheel 17B is provided in the vicinity of the front of the horizontal shaft transmission cylinder 36 that transmits the rotation of the engine 62 to the cutting device 4, as shown in FIG. It is provided in the vicinity of the rear of the front end portion of the tip conveying device 34A. The drive sprocket 17A is disposed between the front and rear tensioning wheels 17B and 17B in the front-rear direction and is biased toward the front tensioning wheel 17B. The drive sprocket 17A and the feed shaft 12B The counter shaft 71 that transmits the rotation of the engine 62 is positioned substantially at the center. Further, in the vertical direction, it is located at the approximate center of the support frame 19 extending rearward for supporting the counter shaft 71 and the lower chain rail 18B. Also, a tension sprocket 17C is provided between the front tensioning wheel 17B and the drive sprocket 17A, and the base of the tension arm 17D that supports the tension sprocket 17C at the tip is rotatably supported by a drive shaft 68D described later. Has been.

  As a result, the feed chain 12B moves upward from the drive sprocket 17A, and then moves along the tension sprocket 17C to reach the front tensioning wheel 17B. From the front tensioning wheel 17B to the upper chain rail 18A. The upper side moves toward the rear tensioning wheel 17B. Thereafter, the feed chain 12B moves from the rear tensioning wheel 17B toward the front lower chain rail 18B, and then moves from the rear end of the lower chain rail 18B to the upper side of the lower chain rail 18B with the front guide 18D. Then, it moves along the guide 18D and reaches the drive sprocket 17A.

  In FIG. 21, in order to increase the movable range of the tension sprocket 17C, the base portion of the tension arm 17D that supports the tension sprocket 17C at the tip is extended to the upper chain rail 18A in the left-right direction and provided on a support shaft 18a. Another form is shown which is rotatably supported. The support shaft 18a is provided behind the tensioning wheel 17B arranged on the front side.

  On the rear side of the tension arm 17D, an urging means 17E such as a spring for pulling the tension arm 17D rearward is disposed. The front side portion of the urging means 17E is attached to the central portion of the tension arm 17D in the vertical direction, and the rear side portion of the urging means 17E is attached to the front side portion of the adjustment hook 17G that adjusts the extension of the urging means 17E. ing. The rear end portion of the adjustment hook 17G is attached to a front rail connection plate 18C that connects the upper chain rail 18A and the lower chain rail 18B via a bracket 17H.

  When the tension of the feed chain 12B is high due to the adjustment hook 17G, the tip of the tension arm 17D extends in the direction of 6 o'clock with respect to the base of the tension arm 17D, and as the tension of the feed chain 12B decreases, The tip of the tension arm 17D moves counterclockwise with respect to the base of the tension arm 17D when viewed from the left side.

Conveyed reaper grain culm by the feed chain 12B, if such a number of straw debris from the feed chain 12B falls, the Tenshoamu 17D in order to extend in the direction of 6 o'clock, the Tenshoamu 17D and the tension sprocket 17C It is possible to prevent accumulation of sawdust and the like. Further, since the biasing means 17E and the adjustment hook 17G are provided above the feed chain 12B that moves from the rear side toward the front side, the feed chain 12B is not carried over from the feed chain 12B to the waste transporting device 58. Therefore, the urging means 17E and the adjustment hook 17G of the waste conveyed forward can be prevented from being caught.

  As shown in FIG. 6, the rotation of the engine 62 is transmitted to the feed chain hydraulic continuously variable transmission 10 through the counter shaft 71, and after being accelerated and decelerated by the key box 68, the driving of the threshing section transport device 12 is driven. It is transmitted to the output shaft 68B connected to the sprocket 17A.

  Both side portions of the counter shaft 71 are pivotally supported by a pair of support members 80 erected forward at the center of the front wall 50A of the threshing device 3 in the vertical direction. The rotation of the engine 62 is transmitted to the counter shaft 71 via a pulley 71 </ b> A supported on the right end portion of the counter shaft 71.

  The rotation transmitted to the counter shaft 71 is transmitted to the handling cylinder 55 via a pulley (first pulley) 71C supported on the left side of the pulley 71A and the belt 92, and supported on the left end portion of the counter shaft 71. It is transmitted to the input shaft 10A of the feed chain hydraulic continuously variable transmission 10 via a pulley (third pulley) 71D supported on the right side of the pulley (second pulley) 71E, a belt 93, and the like. The rotation transmitted to the input shaft 10A of the feed chain hydraulic continuously variable transmission 10 is transmitted to the gear box 68 via the output shaft 10B as shown in FIG. And transmitted to the output shaft 68B. The rotation transmitted to the output shaft 68B is transmitted to the drive sprocket 17A of the feed chain 12A via the coupling 68C. The drive sprocket 17A is rotatably supported on the drive shaft 68D.

  The drive shaft 68D is supported by a plate 19C attached to the right side of the support frame 19, and when the support frame 19 is rotated with respect to the feed chain rotation shaft 35B, the output shaft 68B by the coupling 68C and the drive sprocket 17A. Thus, the rotation of the engine 62 is not transmitted to the drive sprocket 17A, and the feed chain 12B, the guide 18D, etc. can be exchanged safely. Instead of the coupling 68C that connects the output shaft 68B and the drive shaft 68D, a meshing clutch and a pawl clutch may be provided at the ends of the opposed output shaft 68B and the drive shaft 68D.

As shown in FIG. 7, the carrier box 68 is attached to the right side surface of the rear plate 11 </ b> B that is erected forward at a portion biased to the lower side in the vertical direction of the front wall 50 </ b> A of the threshing device 3. Further, in order to effectively use the space on the front side of the threshing device 3, a feed chain hydraulic continuously variable transmission 10 is attached to the left side surface of the carrier box 68. Furthermore, the feed chain hydraulic continuously variable transmission A first transmission motor 10 </ b> C that rotates the trunnion shaft 10 </ b> F of the feed chain hydraulic continuously variable transmission 10 is attached to the rear side of the motor 10.
Further, as shown in FIG. 20, a first transmission motor 10C that rotates a trunnion shaft 10F of the feed chain hydraulic continuously variable transmission 10 on the rear side of the feed chain hydraulic continuously variable transmission 10, and a first A second speed change motor 10F that has a larger output than the speed change motor 10C and rotates the trunnion shaft 10F at a high speed can be mounted side by side.
The gear 10c of the first transmission motor 10C and the gear 10e of the second transmission motor 10F attached to the body frame 1 are engaged with the tip of the sector gear 10G whose base end is supported by the trunnion shaft 10F. Yes. The control device 85, which will be described later, drives the first transmission motor 10C and rotates the trunnion shaft 10F in the normal mowing mode, and drives the second transmission motor 10F and rotates the trunnion shaft 10F in the handling mode. Note that the second speed change motor 10F freely rotates in the cutting mode, and the first speed change motor 10C freely rotates in the handling mode.

The feed chain hydraulic continuously variable transmission 10 and the carrier box 68 can be attached to the body frame 1, and the first transmission motor 10 </ b> C and the second transmission motor 10 </ b> F can be attached to the carrier box 68, and the input shaft 10 </ b> A is provided. Instead of the feed chain hydraulic continuously variable transmission 10 in which the pump unit and the motor unit including the output shaft 10B are integrated, a feed chain hydraulic continuously variable transmission in which the pump unit and the motor unit are divided is provided. It can also be used.
The first transmission motor 10 </ b> C shifts the feed chain hydraulic continuously variable transmission 10 in conjunction with the driving speed of the cutting device 4. Specifically, it is preferable to detect the rotational speed output from the traveling hydraulic continuously variable transmission 66 and transmitted to the reaping device 4, and to operate the first transmission motor 10C in accordance with the rotational speed. is there.

  The front end of the rear plate 11B and the rear end of the front plate 11A provided on the connecting frame 35E of the left and right suspension bases 35 and 35 are connected by loosely inserted pins in order to reduce vibration. . The rear portion of the rear plate 11B is connected to a bracket on the counter shaft 71 side by fastening means such as a bolt. Further, a cutting position sensor 36S that detects a vertical rotation position of the post-cutting frame 28 is provided below the horizontal transmission shaft 36A.

  On the left side of the right base 35A, as shown in FIG. 6, in order to shorten the hydraulic system path, hydraulic system paths such as the feed chain hydraulic continuously variable transmission 10 and the traveling hydraulic continuously variable transmission 66 are provided. A control valve 9A for controlling the opening and closing of the control valve 9A is provided. On the right side of the control valve 9A is an oil tank 9B for supplying oil to the feed chain hydraulic continuously variable transmission 10, the traveling hydraulic continuously variable transmission 66, and the like. Is provided.

  In order to effectively utilize the space below the front of the threshing device 3 and prevent the feed chain 12B, the belt 93 and the like from interfering with each other when the feed chain 12 rotates, the input shaft 10A of the feed chain hydraulic continuously variable transmission 10 is provided. The output shaft 10B and the output shaft 68B of the gear box 68 are provided vertically so as to be vertical.

  In order to prevent hydraulic pressure loss, the input shaft 10 of the pump portion of the feed chain hydraulic continuously variable transmission 10 is provided below the output shaft 10B to control the feed chain hydraulic continuously variable transmission 10 and control. The valve 9A and the hydraulic path are shortened.

  In order to facilitate winding of the feed chain 12B, the output shaft 68B of the gear box 68 is provided above the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 to shorten the length of the feed chain 12B. ing.

(Narrow guide)
As shown in FIG. 2, a narrow guide 20 is provided on the left side (uncutted side) of the combine, which can be switched between an overhanging posture that protrudes outside the combine and a storage posture that is housed inside, as shown in FIG. It has been.

The narrow guide 20 includes a front side portion 20A and a rear side portion 20B that are connected in an indirect state, and the front end portion of the front side portion 20A is rotatable to the front end portion of the rearmost weeding frame on the leftmost weed body 31. The rear end portion of the rear side portion 20B is supported by a support member provided on the left side portion of the body frame 1 so as to be movable in the front-rear direction. Further, the narrow guide 20 is switched between an extended posture and a storage posture by switching means (not shown) having a link structure.
When the mode switch 6B is connected and the normal cutting mode is changed to the handling mode, the narrow guide 20 is maintained in the stowed posture in order to prevent the auxiliary operator who performs the handling operation and the narrow guide 20 from coming into contact with each other. The

(Transmission mechanism)
Next, the transmission mechanism of this embodiment will be described. As shown in FIG. 9, the rotation of the engine 62 includes a first path A transmitted to the feed chain hydraulic continuously variable transmission 10 and a second path B transmitted to the travel hydraulic continuously variable transmission 66. And is branched and transmitted to the third path C transmitted to the gear box 39 in front of the Glen tank 5.

  In the first path A transmitted to the feed chain hydraulic continuously variable transmission 10, the rotation of the engine 62 is performed by the pulley 70 </ b> A supported by the crankshaft 70, the belt 90, and the pulley 71 </ b> A supported by the countershaft 71. Is transmitted to the counter shaft 71 via The first path A is provided with a threshing clutch 90 </ b> A that connects and blocks transmission downstream of the belt 90.

  The rotation of the counter shaft 71 is transmitted to the second processing drum 56 and the dust removal processing drum 57 via the pulley 71B, the belt 91 and the like, and the handling drum 55 and the waste transporting device via the pulley 71C and the belt 92 and the like. 58 is transmitted. The rotation of the counter shaft 71 is transmitted to the input shaft 10A via the pulley 71D, the belt 93, and the pulley 10D supported by the input shaft 10A of the feed chain hydraulic continuously variable transmission 10. Further, the counter shaft 71 is rotated through the pulley 71E supported on the left side of the pulley 71D and the belt 94 through the first tang 53A, the first transfer spiral 53b, the second tang 53C, the second transfer spiral 53d, the dust discharge. It is transmitted to the fan 48, the swing sorting device 52, and the waste cutter 59.

The rotation of the input shaft 10 </ b> A is transmitted to the gear box 68 via the output shaft 10 </ b> B, and after being increased / decreased by a plurality of gears 68 </ b> A built in the gear box 68, the rotation is performed on the output shaft 68 </ b> B supported by the gear box 68. Be transmitted.
The gear box 68 is provided with a feed chain speed sensor 10S that measures the rotational speed of the gear 68A provided in the output shaft 10B of the feed chain hydraulic continuously variable transmission 10.

  The rotation of the output shaft 68B is transmitted to the drive shaft 68D via the coupling 68C, and is transmitted to the feed chain 12B via the drive sprocket 17A supported on the left end of the drive shaft 68D. In order to easily rotate the feed chain 12B around a feed chain rotating shaft 35B provided upright on the left suspension base 35, as shown in FIG. The center of the feed chain rotating shaft 35B is provided, and the feed chain rotating shaft 35B extends vertically in the vertical direction. The left end of the output shaft 68B is on the left side of the left end of the counter shaft 71 as shown in FIG. The drive sprocket 17A is also extended to the left of the pulley 71E.

On the left side of the cockpit 6, transmission 65 in accordance with the inclined state of UeTatsuKoku culm behind the travel hydraulic main speed change lever 16 for remotely operating the continuously variable transmission 66 is provided, the main shift lever 16 A sub-transmission lever 15 is provided for switching the stepped sub-transmission device provided in the transmission mechanism. The main transmission lever 16 is provided with a speed increasing switch 16A and a speed reducing switch 16B for remotely operating the feed chain hydraulic continuously variable transmission 10. When the acceleration switch 16A is pressed and held for about 2 seconds or longer, the rotation of the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 can be changed to the maximum rotation speed, and the acceleration switch 16A is pressed for about 1 second. Then, the rotation of the output shaft 10B can be increased stepwise. Similarly, when the deceleration switch 16B is pressed and held for about 2 seconds or more, the rotation of the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 can be changed to the minimum rotational speed, and the deceleration switch 16B is shortened by about 1 second. When pushed, the rotation of the output shaft 10B can be reduced stepwise. The speed increasing switch 16A and the speed reducing switch 16B are collectively referred to as a speed change switch S. A main transmission lever position sensor 16S that measures the transition position of the main transmission lever 16 is provided below the main transmission lever 16, and a sub-transmission position that measures the transition position of the sub-transmission lever 15 is provided below the sub transmission lever 15. A shift lever position sensor 15S is provided.

  In the second path B transmitted to the traveling hydraulic continuously variable transmission 66, the rotation of the engine 62 is caused by the pulley 70B supported by the crankshaft 70, the belt 96, and the traveling hydraulic continuously variable transmission 66. This is input to the traveling hydraulic continuously variable transmission 66 through a pulley 66B supported by the input shaft.

  The rotation of the input shaft of the traveling hydraulic continuously variable transmission 66 is transmitted to the transmission 65 via the output shaft of the traveling hydraulic continuously variable transmission 66 and is accelerated and decelerated by a plurality of gears built in the transmission 65. After that, the vehicle is transmitted to the traveling device 2 via left and right axles 65A that are pivotally supported by the transmission 65 and drive wheels 65B that are fixed to the front end of the axle 65A. In addition, the rotation of the output shaft of the traveling hydraulic continuously variable transmission 66 is performed from the output shaft 65C that is output from a portion of the transmission path in the transmission 65 that is closer to the auxiliary transmission than the auxiliary transmission device to the tip of the output shaft 65C. Is transmitted to a pulley 36B supported on the right end of the lateral transmission shaft 36A via an output pulley 65D and a transmission belt 65E. As a configuration for urging the tension roller to the transmission belt 65E, a cutting clutch 65F is configured.

That is, the rotation of the engine 62 transmitted to the input shaft of the traveling hydraulic continuously variable transmission 66 is increased and decelerated by the traveling hydraulic continuously variable transmission 66 and then branched, and one of them is pivotally supported by the transmission 65. Since the left and right axles 65A are transmitted to the crawler of the traveling device 2 and the other is transmitted to the pulling device 32 and the conveying device 34 of the reaping device 4 via the lateral transmission shaft 36A, the traveling speed of the traveling device 2 is increased. V, the pulling speed of the pulling device 32 of the reaping device 4 and the transport speed VH of the transport device 34 are determined with a certain relationship. For example, when the traveling speed V of the traveling apparatus 2 is increased, the pulling speed of the pulling apparatus 32 of the reaping apparatus 4 and the conveying speed VH of the conveying apparatus 34 are also increased, and the traveling speed V of the traveling apparatus 2 is decreased. In this case, the pulling speed of the pulling device 32 of the reaping device 4 and the transport speed VH of the transport device 34 are also low. The axle 65A and the lateral transmission shaft 36A are provided with a travel speed sensor 66S and a transport speed sensor 34S for measuring the rotational speed, respectively.
Further, in the transmission path in the transmission 65, left and right side clutch gears 65H are pivotally supported so as to be engaged and disengaged on both left and right side portions of the center gear 65G provided on the lower side of the auxiliary transmission. . Claw clutch type left and right side clutches 65I are formed between the center gear 65G and the left and right side clutch gears 65H, respectively. The left and right side clutches 65I mesh with left and right axle gears attached to the bases of the left and right axles 65A.

The left and right side clutches 65I slide the side clutch gear 65H in the left-right direction by a shifter (not shown) that is operated by a left-right tilting operation of a steering lever disposed in front of the cockpit 6, and from the center gear 65G. By separating it, the transmission is cut off.
Further, the left and right side clutches 65I are linked to the stepping operation of the take-in pedal 22 disposed on the step in the lower front of the cockpit 6, and when the take-in pedal 22 is depressed, the left and right side clutches 65I. The center gear 65G and the side clutch gear 65H are disengaged via 65I, and the rotation of the engine 62 is not transmitted to the axle 65A. On the other hand, when the depression of the brake pedal 22 is released, the center gear 65G and the side clutch gear 65H are engaged via the left and right side clutches 65I, and the rotation of the engine 62 is transmitted to the axle 65A.

When one side of the field is trimmed to the edge, the main transmission lever 16 is operated to the neutral position to stop the vehicle, the depression pedal 22 is depressed, and the center gear 65G and the side clutch gear 65H are connected via the side clutch 65I. The engagement is released and the rotation of the axle 65A is stopped.
When the main transmission lever 16 is operated to the forward side again with the combine stopped, the output shaft 65C is driven by the output of the traveling hydraulic continuously variable transmission 66, and the cutting device 4 is driven via the cutting clutch 65F. Is done. At this time, since the left and right side clutches 65I are disengaged, the traveling device 2 is not driven forward and maintains a stopped state. With this configuration, the planted culm that remains in the reaping device 4 in a state where it has been cut and advanced to the edge of the cocoon can be reaped by operating the drive pedal 22 and the main transmission lever 16.

Note that the mowing clutch 65F can be interlocked with the depression operation of the take-in pedal 22.
That is, when the take-in pedal 22 is depressed, the output shaft 65C of the transmission 65 and the lateral transmission shaft 36A of the reaping device 4 are connected via the reaping clutch 65F, and the reaping device 4 is driven. On the other hand, when the depression of the take-in pedal 22 is released, the connection between the output shaft 65C of the transmission 65 and the lateral transmission shaft 36A of the cutting device 4 is released via the cutting clutch 65F and the driving of the cutting device 4 is stopped. To do.

  When cutting one side of the field to the edge, the main shift lever 16 is operated to the neutral position to stop the vehicle body. When the take-in pedal 22 is depressed with the combine stopped, the reaping device 4 is driven. At this time, since the main transmission lever 16 is moved to the neutral position, the traveling device 2 is not driven forward and maintains the stopped state.

  In the third path C that is transmitted to the discharge spiral 39A of the Glen tank 5, the rotation of the engine 62 is caused by the pulley 70C supported by the crankshaft 70, the belt 97, the gear box 39, and the like below the Glen tank 5. Is transmitted to a discharge spiral 39A provided in The rotation of the discharge spiral 39 </ b> A is transmitted to an auger spiral 39 </ b> B housed in a discharge cylinder 7 provided behind the Glen tank 5. The third path C is provided with a discharge clutch 97A that connects and disconnects transmission downstream of the belt 97.

(Feed chain drive / stop method)
Next, a method for driving / stopping the feed chain 12B of this embodiment will be described. On the input side of the control device 85 provided in the cockpit 6, as shown in FIG. 10, a travel speed sensor 66 </ b> S for detecting the speed V of the travel device 2 and a speed VH of the transport device 34 of the reaping device 4 are provided. A transport speed sensor 34S for detecting, a feed chain speed sensor 10S for detecting the speed VF of the feed chain 12B of the threshing section transport device 12, a sub shift lever position sensor 15S for detecting the lever position of the sub shift lever 15, Acceleration / deceleration switches 16A and 16B for increasing / decreasing the speed VF of the feed chain 12B provided on the main transmission lever 16 and speed control for increasing / decreasing the speed VF of the feed chain 12B provided on the side surface of the barrel cover 50D. Dial 6A, mode switch 6B for switching to the handling mode, and feed chain 12B from the rear side toward the front side A reversing switch 6C to rotate, stop switch for emergency stop the driving of the feed chain 12B that the cereal stalk sensor 34C for detecting the presence or absence of grain stalks to be conveyed on the feed chain 12B, provided on the side surface of the threshing drum cover 50D 6D is connected via a predetermined input interface circuit. On the other hand, on the output side, a first transmission motor 10C that drives the trunnion shaft 10F of the feed chain hydraulic continuously variable transmission 10 in the normal cutting mode, and a feed chain hydraulic continuously variable transmission in the handling mode. A second transmission motor 10E that drives the 10 trunnion shafts 10F is connected via a predetermined output interface circuit.
The mode switch 6B is not limited to a switch that is manually operated by an operator. That is, in order to prevent disturbance of the cereal stalk posture is taken over from the terminal end of the transport apparatus 34 of the cutting device 4 to the starting end of the feed chain 12B, the end portion of the transport apparatus 34, hand swings vertically A rear auxiliary clamp 43 is provided below the handling restriction plate 40 and the handling restriction plate 40. When switching to Te扱mode, in order to mount on the rowing grain stalks rearward auxiliary clamping扼杆43 and on the feed chain 12B, swinging the rowing regulating plate 40 upward around the shaft 44A Then, switching from the regulated state to the non-regulated state A mode switch 46 that is turned ON / OFF in conjunction with an operation of swinging the handling restriction plate 40 can be provided, and the mode switch 46 can be used as the mode switch 6B.

<First drive method of feed chain>
FIG. 11 illustrates a first driving method of the speed VF of the feed chain 12B. The horizontal axis indicates the traveling speed V of the traveling device 2 detected by the traveling speed sensor 66S, and V1 and V2 are first and second set values of the traveling speed V, respectively. The left vertical axis indicates the speed VF of the feed chain 12B detected by the feed chain speed sensor 10S, VF1 and VF2 are the first and second set values of the speed VF of the feed chain 12B, and the right vertical axis indicates the conveyance speed. The speed VH of the transport device 34 detected by the sensor 34S is shown, VH1 and VH2 are first and second set values of the transport speed VH, and VH1 and 2 are the first and second set values of the travel speed V of the travel device 2. It corresponds to the speed of V1,2.
The solid line indicates the speed VF of the feed chain 12B, and the broken line indicates the speed VH of the transport device 34.

First, the control device 85 determines whether or not there is an input from the mode switch 6B. If it is determined that there is no input from the mode switch 6B, the control device 85 determines the speed VH (conveyance speed sensor 34S) of the transport device 34. It is determined whether or not the input value from (1) is lower than the first set value VH1.
When it is determined that the speed VH of the transport device 34 is lower than the first set value VH1, the speed VF of the feed chain 12B is controlled to the speed calculated by the following equation 1 as shown in the first state. Note that the transport speed VH of the transport device 34 with respect to the travel speed V of the travel device 2 varies depending on the gear position set by the auxiliary transmission lever 15.
Formula 1 VF = K × V
However, K = VH1 / V1

On the other hand, when it is determined that the speed VH of the conveying device 34 is equal to or higher than the first set value VF1, the speed VF of the feed chain 12B is calculated by the following equation 2 as shown in the second state. To control.
Formula 2 VF = VF1 + 1.5 to 2.5 × K × (V−V1)
However, K = (VH2-VH1) / (V2-V1)

Next, the control device 85 determines whether or not the speed VF of the feed chain 12B (input value of the feed chain speed sensor 10S) is lower than the second set value VH2 of the transport device 34.
When it is determined that the speed VF of the feed chain 12B is lower than the second set value VH2 of the transport device 34, the speed VF of the feed chain 12B is set to the speed calculated by Expression 2 as shown in the second state. Control.
On the other hand, when it is determined that the speed VF of the feed chain 12B is equal to or higher than the second set value VH2 of the transport device 34, the speed VF of the feed chain 12B is set to the second set value VF2 as shown in the third state. To maintain.
When the traveling speed V of the traveling device 2 detected by the traveling speed sensor 66S exceeds the maximum speed V2 over a predetermined time, a warning is given to the driver by a monitor or the like disposed in front of the cockpit 6. It is preferable.

<Second drive method of feed chain>
FIG. 12 illustrates a second driving method of the speed VF of the feed chain 12B. The solid line indicates the speed VF of the feed chain 12B, the broken line indicates the speed VH of the transport device 34, the same members as those in the first driving method are denoted by the same reference numerals, and duplicate descriptions are omitted.

First, the control device 85 determines whether or not there is an input from the mode switch 6B. If it is determined that there is no input from the mode switch 6B, the control device 85 maintains the speed VF of the feed chain 12B in the first to third states. To do.
On the other hand, when it is determined that the mode switch 6B has been input, the speed VF of the feed chain 12B is controlled to the speed calculated by the following equation 3. In the case where placed on speed VF of the feed chain 12B can be decelerated increase in the range of 10-20% by governor dialing 6A, cereal stalks by rowing work feed chain 12B is governor dial It is preferable to operate 6A to increase the speed of the feed chain 12BVF.
Formula 3 VF = 0.25-0.5 * VH1

<First stop method of feed chain>
FIG. 13 shows a first stopping method of the feed chain 12B driven by the first driving method.
The operation state of the stop switch 6D is shown in the first stage from the upper side of FIG. 13, and in the second stage, the feed chain hydraulic continuously variable transmission 10 for increasing and decreasing the rotational speed transmitted to the feed chain 12B. The position of the trunnion shaft 10F is illustrated, and the speed VF of the feed chain 12B is illustrated in the third stage. Further, the driving state of the engine 62 is illustrated in the fourth stage of FIG. 13, and the speed VH of the transport device 34 provided in the reaping device 3 that is driven in conjunction with the traveling device 2 is illustrated in the lowermost stage. .

  First, the control device 85 determines whether or not there is an input from the stop switch 6D. If it is determined that there is no input from the stop switch 6D, the control device 85 drives the feed chain 12B by the first driving method.

On the other hand, when it is determined that the stop switch 6D has been input, the first transmission motor 10C connected to the trunnion shaft 10F of the feed chain hydraulic continuously variable transmission 10 is driven, and the rotational position of the trunnion shaft 10F is determined. The rotation of the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 is stopped by rotating to a neutral position. As a result, the driving force to the feed chain 12B is interrupted, and the rotation of the feed chain 12B stops.
When it is determined that the stop switch 6D has been input, the engine 62 is stopped to stop the rotation transmitted to the traveling hydraulic continuously variable transmission 66, and the traveling device 2 and the reaping device 4 are provided. The rotation of the transport device 34 is stopped.

  In order to stop the feed chain 12B more quickly, it is preferable to rotate the trunnion shaft 10F slightly beyond the neutral position to a position on the reverse side.

<Second stop method of feed chain>
FIG. 14 shows a second stopping method of the feed chain 12B driven by the second driving method. In addition, the same code | symbol is attached | subjected to the same member as a 1st stop method, and the overlapping description is abbreviate | omitted.

  First, the control device 85 determines whether or not there is an input from the stop switch 6D. If it is determined that there is no input from the stop switch 6D, the control device 85 drives the feed chain 12B by the second driving method.

On the other hand, when it is determined that the stop switch 6D has been input, the rotation position of the trunnion shaft 10F is driven by the second transmission motor 10E connected to the trunnion shaft 10F of the feed chain hydraulic continuously variable transmission 10. The rotation of the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 is stopped by rotating to a neutral position. As a result, the driving force to the feed chain 12B is interrupted, and the rotation of the feed chain 12B stops.
When it is determined that the stop switch 6D has been input, the engine 62 is stopped to stop the rotation transmitted to the traveling hydraulic continuously variable transmission 66, and the traveling device 2 and the reaping device 4 are provided. The rotation of the transport device 34 is stopped.

  In order to stop the feed chain 12B in an emergency, the second speed change motor 10E sets a reduction ratio or the like larger than that of the first speed change motor 10C used in the first stop method, and the first speed change motor 10C moves the trunnion shaft 10F. The trunnion shaft 10F can be rotated at a higher speed than when rotating. Further, in order to stop the feed chain 12B more quickly, the trunnion shaft 10F is rotated until it slightly exceeds the neutral position to the reverse rotation position, and the rotation of the output shaft 10B is stopped by the rotation sensor 68G. It is preferable to rotate the trunnion shaft 10F from the reverse rotation side position to the neutral position after the rotation of the output shaft 10B is detected again or after 1 to 2 seconds have elapsed.

In order to remove the jammed grain stalks or the like between the feed chain 12B and clamping扼杆12C, it is possible to switch the rotation direction of the feed chain 12B by operating the reversing switch 6C. In this case, in order to prevent inadvertent reverse rotation of the feed chain 12B and increase the safety of the auxiliary worker, the feed chain 12B is driven to rotate reversely only when the reverse rotation switch 6C is operated. In order to ensure the time to leave the combine, in order to drive the feed chain 12B in the reverse direction after the reverse switch 6C has been operated for 1 to 2 seconds or to notify the surrounding collaborators of the reverse state of the feed chain 12B, It is preferable to sound the horn when the feed chain 12B is reversed.

  In addition, after the stop switch 6D is operated and the feed chain 12B, the engine 62, etc. are stopped, in order to start the engine 62 again, it is necessary to release the mode switch 6B and switch to the normal cutting mode.

  The present invention can be applied to agricultural work vehicles.

DESCRIPTION OF SYMBOLS 1 Airframe frame 2 Traveling device 3 Threshing device 4 Mowing device 10 Hydraulic continuously variable transmission for feed chain (hydraulic continuously variable transmission)
10A Input shaft 12A Holding rod 12B Feed chain 17A Drive sprocket
17B Tension sprocket 17C Tension sprocket 17D Tension arm 18A Upper chain rail 18a Support shaft 18F Notch 18G Feed chain cover 18H Exhaust port 26B Handle 34 Transport device 35B Feed chain rotating shaft 40 Hand handle restricting plate 41 Front plate 42 Rear plate 43 Rear auxiliary clamp (auxiliary clamp)
50 Handling chamber 50A Front wall 51 Sorting chamber 55 Handling cylinder 62 Engine 68 Gear box 68B Output shaft 68C Coupling 68D Drive shaft 71 Counter shaft 71C Pulley (first pulley)
71D pulley (third pulley)
71E Pulley (second pulley)
80 Support member A First path B Second path

Claims (11)

A reaping device (4) disposed in front of the machine body frame (1) on which the engine (62) is mounted, a threshing device (3) disposed behind the reaping device (4), and the threshing device (3). A feed chain (12B) disposed along a handling port (26B) formed on one side of the handling chamber (50), and a clamping rod disposed on the upper side of the feed chain (12B) ( 12A) and a combine.
A feed chain cover (18G) is detachably provided on the outside of the feed chain (12B),
A notch (18F) is formed in the lower front side of the feed chain cover (18G) ,
A support portion is arranged near the terminal portion of the conveying device (34) on the cutting device (4) side, and a handling restriction plate (40) extending toward the feed chain (12B) is provided on the support portion. Support the base so that it can rotate up and down,
The handling restriction plate (40) rotates downward, and the distance between the rear part of the handling restriction plate (40) and the front part of the clamping rod (12A) is reduced, so that the feed chain (12B) The regulation state in which the supply of the hand-held cereal meal is regulated, and the hand-handling regulation plate (40) is rotated upward so that the rear part of the hand-handling regulation plate (40) and the holding bowl (12A) The gap between the front part of the feed chain (12B) is enlarged, and can be switched to a non-regulated state in which the supply of hand-held cereals to the feed chain (12B) is allowed,
A front plate (41) rotatably supported by the support portion on the handling restriction plate (40), and a rear side rotatably mounted on the rear portion of the front plate (41). A combine comprising a handling plate (42) .   The combine according to claim 1, wherein an exhaust port (18H) for exhausting air heated by the engine (62) to the outside of the machine body is formed in a front side portion of the feed chain cover (18G). A drive sprocket (17A) for driving the feed chain (12B) is provided between the front and rear extension wheels (17B, 17B) around which the feed chain (12B) is wound.
A tension sprocket (17C) for adjusting the tension of the feed chain (12B) is provided between the front tensioning wheel (17B) and the drive sprocket (17A),
The upper end of the tension arm (17D) that supports the tension sprocket (17C) is supported by a support shaft (18a) provided on the front side of the upper chain rail (18A) on which the feed chain (12B) on the working side is mounted. The combine according to claim 1 or 2. To the support portion, according to claim 1, front mounted to be vertically pivotal movement of the cutting device (4) the culms conveyed to face the feed chain (12B) from nipped auxiliary clamping扼杆(43) Combine as described. When the auxiliary nip (43) is rotated upward by the force received from the cereals conveyed between the auxiliary nip (43) and the feed chain (12B), the handling restriction plate (40 The combine according to claim 4, which is configured to retreat and rotate upward while maintaining a constant vertical distance from the auxiliary clamp (43). A hydraulic continuously variable transmission that continuously shifts the rotation input from the engine (62) and outputs it to the feed chain (12B) side with the traveling device (2) disposed below the body frame (1). A sorting unit (51) is provided below the apparatus (10) and the handling room (50) of the threshing device (3),
Driving the reaping device (4) at a speed synchronized with the traveling speed of the traveling device (2);
A first path (A) for transmitting the rotation of the engine (62) to the threshing device (3) and the feed chain (12B), and a second path for transmitting the rotation of the engine (62) to the reaping device (4) ( B)
Configuration and claims 1, wherein the input selection unit (51) counter shaft disposed in a portion upstream of the rotation of (71) to said hydraulic stepless transmission (10) in said first path (A) Combine. The counter shaft (71) has a first pulley (71C) for outputting the rotation of the counter shaft (71) to the cylinder (55) side of the handling chamber (50), and the rotation of the counter shaft (71). The second pulley (71E) that outputs to the sorting section (51) side, and the third pulley (71D) that outputs the rotation of the counter shaft (71) to the hydraulic continuously variable transmission (10) side. 6. Combine according to item 6 . A support member (80) for supporting the counter shaft (71) is provided on the front wall (50A) of the threshing device (3), and the first pulley (71C) is supported in the axial direction of the counter shaft (71). The second pulley (71E) and the third pulley (71D) are arranged at a position biased to one side with respect to the member (80), and the first pulley (71C) is arranged with respect to the support member (80). The combine according to claim 7, which is disposed in a portion biased to the opposite side to the side. The counter shaft (71) is arranged in the left-right direction in front of the front wall (50A) of the threshing device (3), and the feed chain (12B) is rotated outward from the counter shaft (71). Provide a vertical feed chain rotation axis (35B) to support freely,
The combine according to any one of claims 6 to 8 , wherein the hydraulic continuously variable transmission (10) is disposed at a position between the counter shaft (71) and the feed chain rotating shaft (35B) in a side view. . The drive shaft (68D) provided with the drive sprocket (17A) is a portion between the feed chain rotation shaft (35B) and the counter shaft (71) in the longitudinal direction of the machine body, and is hydraulically non-movable in the vertical direction. The combine of Claim 9 arrange | positioned in the site | part between the input shaft (10A) and counter shaft (71) of a step transmission (10). The driving sprocket (17A) is connected to the tip of the output shaft (68B) of the gear box (68) to which driving force is input from the hydraulic continuously variable transmission (10), or the driving sprocket ( A coupling (68C) connected to the drive shaft (68D) supporting 17A),
When the feed chain (12B) is rotated toward the outer side of the machine body, the connection between the output shaft (68B) and the drive sprocket (17A) is released, or the output shaft (68B) and the drive are driven. The connection with the shaft (68D) is released,
When the feed chain (12B) is rotated inward of the machine body, the output shaft (68B) and the drive sprocket (17A) are connected, or the output shaft (68B) and the drive shaft The combine of Claim 10 made into the structure connected to (68D).

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