JP2522453Y2 - Combine threshing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Field of the Invention The present invention relates to a threshing apparatus for an ordinary combine having a screw rotor.

(B) Prior art Conventionally, a normal combine equipped with a screw rotor has been known.

For example, Japanese Utility Model Laid-Open No. 61-87037 and Japanese Patent Laid-Open No.
It is like the technology described in Japanese Patent Publication No.

(C) Problems to be solved by the present invention The present invention is an improvement of the above-described conventional technology, in which a detachable spiral having a larger diameter than a rotor spiral can be attached to and detached from an impeller. Normally, by attaching a detachable spiral, the diameter of the impeller becomes large, so that it is possible to take in a stable grain culm, and the possibility of clogging is extremely reduced.

Further, even if the detachable spiral portion is worn, only the detached portion needs to be replaced, so that the cost advantage for the user is extremely large.

Also, under special conditions such as when the flow rate is very large,
It is only necessary to remove the detachable spiral, which increases the field of application.

Further, in another conventional technique, the spiral diameter of the screw rotor is configured as a rotor spiral 2 having the same diameter from the inherited portion at the rear end of the feeder box 6 to the rear end of the rotor 1 as shown in FIG. It was being done.

For this reason, the transfer from the feeder chain 5 to the screw-type rotor was not smooth, and in many cases, the culm was accumulated in the transfer portion before being taken in. This was the cause of clogging in the threshing device.

Conversely, in order to solve the above problems, rotor 1
If the diameter of the impeller at the tip is large only at the transfer section from the feeder chain 5 at the tip of the tip, if the flow from the large impeller at the tip to the normal rotor spiral is extremely large, clogging will occur under special conditions. The problem of the occurrence of the problem occurred.

 The present invention has solved such a problem.

(D) Means for Solving the Problems The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

The front end of the rotor 1 is formed in a small-diameter portion in a portion for receiving the processed material from the feeder chain 5 of a threshing device of a normal combine having a built-in screw type rotor, and an impeller is provided on the outer periphery of the rotor 1 in the small-diameter portion. 2b, the impeller 2b has the same diameter as or smaller than the rotor spiral 2 wound around the outer periphery of the rotor 1, and a detachable spiral 3 having a larger diameter than the rotor spiral 2 is attached to the impeller 2b. It was made possible.

(E) Embodiment The problems to be solved and means to be solved by the present invention are as described above. Next, the configuration of the embodiment shown in the attached drawings will be described.

FIG. 1 is an overall side view of an ordinary combine having a screw rotor.

The raising device and the reaping device are arranged at the tip of the fuselage, and the culm after raising and reaping is collected at the center by an auger, and then fed by the feeder chain 5 in the feeder box 6.
It is handed over to a screw rotor chamber composed of a rotor cover 7 and a screw rotor.

The screw-type rotor includes a rotor 1, a rotor spiral 2, a crimp net 8 and a rotor cover 7, and is configured to thresh grain culm and grain. The straw after threshing is discharged to the field scene from the rear end of the rotor cover 7, and the grains are supplied from the crimping net 8 to a swinging sorting device below.

FIG. 2 is a perspective view of a screw rotor provided with a detachable spiral 3, FIG. 3 is a perspective view of the detachable spiral 3, and FIGS. .

In the present invention, since the front end of the rotor 1 is a portion where the grain stem is inherited from the feeder chain 5, the diameter is reduced, and the subsequent rotor 1 is configured to have the same diameter. The rear portion of the rotor spiral 2b has the same diameter, but the impeller 2b constituting the inherited portion of the front end portion has a smaller diameter or the same diameter as the rotor spiral 2.

And usually on the impeller 2b of the same diameter or small diameter,
The detachable spiral 3 is fixed by the mounting bolts 4.

Then, under special conditions such as when the flow rate is very large, the detachable spiral 3 can be removed and only the impeller 2b having the same diameter or small diameter can be used.

In addition, when the tip of the detachable spiral 3 is worn due to long-time use, the detachable spiral 3 alone can be removed and replaced.

Also, as shown in FIGS. 4 and 5, the fixed impeller 2b
The detachable spiral 3 is constituted by two plates, a portion that matches the same transport surface and a portion that has a rear reinforcing surface. Since the detachable spiral 3 is constituted by the two laminated plates as described above, the strength of the detachable spiral 3 is increased, and the same convey surface is provided between the detachable spiral 3 and the fixed impeller 2b. No resistance is generated.

FIG. 6 is a side view of a configuration in which the rotor spiral 2 has the same diameter from the front end to the rear end of the rotor 1, and FIG. 7 shows a portion of the large-diameter impeller 2a at the front end. FIG. 8 is a side view of a configuration in which the cylindrical portion 7a is configured substantially in parallel with the diameter reduction of the large-diameter impeller 2a. FIG. 8 shows the diameter reduction inclined surface 2c of the large-diameter impeller 2a and the diameter reduction inclination of the rotor cover 7. It is a drawing showing an embodiment of the present invention configured so as to be shifted from the cylindrical portion 7a.

In the case of the configuration as shown in FIG. 6, in the inheriting portion from the feeder chain 5, a portion where the grain stem conveyed by the feeder chain 5 cannot be inherited at the tip of the feeder box 6 comes out. Therefore, as shown in FIG. 7, the rotor spiral 2 at the tip of the rotor 1 is formed into a large diameter as a large diameter impeller 2a, and the feeder chain 5 is formed.
It is structured so that the inheritance can be carried out smoothly.

However, a large-diameter impeller 2a is provided at the tip as in this configuration,
When the diameter-reduced inclined cylinder 7a of the rotor cover 7 is formed along the diameter-reduced inclined surface of the large-diameter impeller 2a, resistance is generated at the diameter-reduced inclined cylinder 7a, and the transfer to the rear of the rotor 1 is prevented. The problem was that it was not performed smoothly.

In the present invention, as shown in FIG. 8, a large-diameter impeller 2a is provided at the front end, and a reduced-diameter inclined cylinder portion 7a is provided on the rotor cover 7, but the large-diameter impeller 2a has a smaller diameter. It is arranged so as to be shifted from the inclination of the diameter-reducing inclined surface 2c so as to end at a position where it enters the portion of the rotor spiral 2.

With such a configuration, the diameter-reduced inclined cylindrical portion 7a of the rotor cover 7 becomes gentle, so that the large-diameter impeller 2a
This makes it easier for the grain field taken into the rear of the rotor 1 to move.

FIG. 9 is a front view of an embodiment in which a half of the saddle type Glen tank 9 arranged on the upper part of the rotor cover 7 can be opened and rotated for repair and inspection. FIG. 10 is a bottom view of the saddle type Glen tank 9. It is sectional drawing which shows the mechanism which opens 10 for repair inspection.

The saddle-shaped Glen tank 9 straddles the rotor spiral 2 and the rotor cover 7 and the screw conveyor 1
Since the rotor cover 7 is provided in a state of being covered with the saddle, the rotor cover 7 is opened when the rotor spiral 2 is clogged. To remove the clogging of the rotor spiral 2 or to remove the clogged rotor spiral 2, it is necessary to remove the front end of the saddle type Glen tank 9, which has been a major repair.

In this configuration, as shown in FIG.
Can be divided into left and right Glen tanks 9a and 9b, and one half Glen tank 9a can be opened by rotating around a screw conveyor 14.

Further, in the embodiment shown in FIG.
, The bottom plate 10 of the saddle type Glen tank 9 alone can be opened and rotated inside the saddle type Glen tank 9,
The rotor cover 7 and the rotor spiral 2 can be inspected and repaired.

FIG. 11 is a perspective view of a configuration in which the rear end of the screw rotor can be lifted upward, FIG. 12 is a side view of the same,
FIG. 13 is a rear view of the same.

In the conventional ordinary combine, when clogging of grain stalk occurs inside the screw type rotor, in order to remove this clogging, the supporting metal of the front part supporting the rotor 1 is pushed upward by a bolt, The gap between the crimping net 8 and the rotor spiral 2 is made large so as to remove clogging.

However, since the gap formed by lifting the rotor 1 is a gap that opens forward, it is difficult to remove the clogged culm.

In this configuration, the front end of the reverse screw type rotor is supported by the self-aligning bearing 15, and the rear end bearing plate 16 can be lifted up by the vertical adjustment bolts 17,18. Since the bearing plate 16 is not pushed up by one bolt but lifted by two left and right up-and-down adjustment bolts 17 and 18, only one of the left and right can be lifted as shown in FIG. It was.

A plurality of bolt holes 16a are formed in the bearing plate 16 at an angle.When the bearing plate 16 is lifted, bolts are screwed into the bolt holes 16a, and the bolts 16a are fixed to the threshing machine frame for cleaning. Can be performed.

FIG. 14 is a side cross-sectional view of an embodiment in which the second reduction path is constituted by a slat conveyor, FIG. 15 is a side cross-sectional view showing an embodiment of a reductant charging unit, and FIG. 16 is a second reduction slat conveyor mechanism. FIG. 17 is a front cross-sectional view of the bent portion.

The conventional second reduction mechanism is constituted by a screw conveyor and is often provided with two inheritance parts. In particular, in the mechanism for reducing the diameter of the impeller 2a at the tip of the rotor 1, it is difficult to arrange the screw conveyor obliquely due to space limitations, and two inheritance parts are inevitably required. The increase in the number of the inherited portions means that the possibility of clogging increases accordingly.

In this configuration, a slat conveyor, which is a bendable conveyor, is used in order to eliminate the inheriting portion.

As shown in FIGS. 16 and 17, the slat conveyor pivotally supports the drive chains 22 and 22 on the left and right sides of the conveyor plate 20 and slides the conveyor chains 20 and 21 between the plates 19 and 21. .

And the bending part is provided with bending sprockets 23, 23,
By bending the drive chain 22, the conveyor plate is configured to bend and pass.

The 2nd reduction slat conveyor mechanism of such a configuration,
As shown in FIG. 14, it was bent into a hook shape, and was erected vertically from below the screw rotor. Above the rotor 1, the second reduction slat conveyor mechanism was bent horizontally, and a large-diameter impeller at the front end of the screw rotor. The portion 2a is configured to release and reduce the second reduced product.

In the embodiment of FIG. 14, the reduced material is supplied while the conveyor plate rotates from bottom to top.In the embodiment of FIG. 15, the reduced material is supplied while the conveyor plate rotates from top to bottom. It is.

(F) Effects of the Invention The present invention is configured as described above, and has the following effects.

First, since the impeller portion is usually large in diameter by the detachable spiral 3, the grain culm can be taken in stably, and the possibility of clogging is very low.

Secondly, even if the detachable spiral 3 is worn, only the detached portion needs to be replaced, which is extremely cost-effective for the user.

Third, under special conditions such as when the flow rate is extremely large, only the detachable spiral 3 needs to be removed, and the range of application to the field is increased.

[Brief description of the drawings]

FIG. 1 is an overall side view of a conventional combine having a screw type rotor, FIG. 2 is a perspective view of a screw type rotor provided with a detachable spiral 3, FIG. 3 is a perspective view of the detachable spiral 3, FIG. FIG. 5, FIG. 5 is a cross-sectional view of a mounted state of the detachable spiral 3, FIG. 6 is a side view of a rotor spiral 2 having the same diameter from the front end to the rear end of the rotor 1, and FIG. Although a portion of the impeller 2a is provided, a side view of a configuration in which the portion of the reduced diameter inclined cylindrical portion 7a of the rotor cover 7 is configured substantially in parallel with the reduced diameter of the large diameter impeller 2a, FIG. FIG. 9 shows an embodiment of the present invention in which the diameter-reduced inclined surface 2c of the diameter impeller 2a is shifted from the diameter-reduced inclined tube portion 7a of the rotor cover 7, and FIG. Open half of tank 9 for repair and inspection Front view of the possible and the examples,
FIG. 10 is a front view showing a mechanism for opening the bottom plate 10 of the saddle type Glen tank 9 for repair and inspection, FIG. 11 is a perspective view of a configuration in which the rear end of the screw rotor can be lifted upward, FIG. 12 is a side view, FIG. 13 is a rear view,
FIG. 14 is a side cross-sectional view of an embodiment in which the second reduction path is constituted by a slat conveyor, FIG. 15 is a side cross-sectional view showing another embodiment of a reductant charging section, and FIG. FIG. 17 is a front cross-sectional view of the bent portion. DESCRIPTION OF SYMBOLS 1 ... Rotor 2 ... Rotor spiral 2a ... Large-diameter impeller 3 ... Removable spiral 5 ... Feeder chain 7 ... Rotor cover 7a ... Diameter reduction inclined cylinder part 8 ... Crimp net

Continuing on the front page (72) Inventor Shuichi Kawada 1-32 Chaya-cho, Kita-ku, Osaka-shi, Osaka Inside Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Takamasa Nakamura 428 Enami, Okayama-shi, Okayama Pref. (56) References JP-A-1-273514 (JP, A) JP-A-4-51818 (JP, A) JP-A-61-87037 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A small-diameter portion at the front end of a rotor 1 in a portion for receiving a processed product from a feeder chain 5 in a threshing device for a normal combine having a built-in screw-type rotor. Impeller around 1
2b, the impeller 2b has the same diameter as or smaller than the rotor spiral 2 wound around the outer periphery of the rotor 1, and a detachable spiral 3 having a larger diameter than the rotor spiral 2 is attached to the impeller 2b. A combine threshing device characterized by being made possible.