KR102273479B1 - Cultivator with harrow - Google Patents

Abstract

The present invention relates to a cultivating device having a harrow, and more particularly, to a cultivating device having a harrow installed in a cultivating device for cultivating arable land by the traction of a tractor to crush cultivated land and flatten it evenly.
To this end, the present invention provides a frame having a tractor connection in the front so as to be towed by a tractor; a front tiller provided with a plurality of tillers in the width direction at the front portion of the frame; a rear cultivating unit provided with a plurality of cultivators in the width direction at the rear portion of the frame; a front harrow fixed to the frame and rotated between the front tillage part and the rear tillage part to crush the soil created by the tillage part; The rear harrow is fixed to the frame and rotates at the rear of the rear tillage part to crush the soil created by the tillage part.

Description

Cultivator with harrow

The present invention relates to a cultivating device having a harrow, and more particularly, to a cultivating device having a harrow installed in a cultivating device for cultivating arable land by the traction of a tractor to crush cultivated land and flatten it evenly.

In the present invention, the conventional technique and the technique of the present invention will be described with an example of a plow typically used in the cultivation machine, but this is not limited to the plow.

In general, a plow is used to dig up the soil using livestock such as cows or machinery for the purpose of growing crops, and to make a plow by turning it upside down.

As an example of a conventional tractor plow device, as shown in Utility Model No. 20-0200074 (Improved tractor plow) registered by the present applicant, a plurality of front plows are provided on the front frame of a support composed of a front frame and a rear frame. is provided, and the rear frame may have a structure provided with a plurality of rear frames.

The plow device of this structure plows the land of arable land, and the harrow is used to finely crush the lump of soil generated during the plowing process.

In Registered Patent No. 10-1053758 (Harrow earther equipped with a moisturizing part), a plurality of tillage blades vertically formed rotatably at regular intervals from the lower part of the main body are geared with the driving part of the tractor to receive power in the horizontal direction. It rotates to crush the soil finely.

However, the conventional harrow has a gear fastening structure for transmitting power to a plurality of tillage blades, so the structure is very complicated, and there is a problem in that the manufacturing cost is also increased due to the complexity.

In addition, although such a harrow can crush a lump of soil finely, it cannot flatten the crushed soil, and also by-products such as straw and roots that are dug up when digging the soil are exposed above the ground and must be removed separately, so workability is very high. not good

<Prior art literature>

1. Registered Utility Model No. 20-0200074

(Improved plow for tractors)

2. Registered Patent No. 10-1053758

(Harrow potter equipped with moisturizing part)

In order to solve this conventional problem, the present invention is a cultivating apparatus having a harrow so that it is possible to crush the lump of soil made by the cultivator, flatten the crushed soil, and simultaneously press the dug by-product to the ground. Its purpose is to provide

A cultivation apparatus having a harrow according to a first embodiment of the present invention for achieving the above object,

a frame having a tractor connection at the front to be towed by the tractor;

a front tiller provided with a plurality of tillers in the width direction at the front portion of the frame;

a rear cultivating unit provided with a plurality of cultivators in the width direction at the rear portion of the frame;

The front harrow is fixed to the frame and rotates between the front tillage part and the rear tillage part to crush the soil created by the tillage part; consists of.

And, one side of the frame is axially rotatable on both sides of the frame, the other side is a pair of front support arms chukseol by a rotating shaft from the outside of the front harrow;

It is fixed to the frame, and fixed the vertical rotation angle of the front support arm to adjust the hardness of the cultivator; is configured to include a.

And, the front harrow is

a pair of rotating plates axially configured to rotate on the other side of the pair of front support arms;

a connecting bar having a plurality of rods and having both ends fixed while maintaining a predetermined distance along the circumference of the pair of rotating plates to connect the pair of rotating plates;

It is in the form of a ring or disk and is inserted into or out of the plurality of connecting bars, and the connecting bars are fixed on the outer or inner circumference to support the connecting bar not to be bent, and a plurality of front support portions are provided at regular intervals; Consisting of; do

And, the meridian control unit

A support piece provided in the lateral direction of the frame and having a plurality of pin holes formed in the vertical direction;

and a fixing pin inserted into the pin hole of the support piece to fix the upper movement and the lower movement of the support arm.

And, installed at regular intervals along the circumference of the support portion, further comprising a crushing blade provided to protrude outward of the support portion, wherein the crushing blade is detachable from the support portion, and a fixing hole is formed in the support portion, , the crushing blade is configured to be fastened to the fixing hole by a bolt.

In addition, the cultivation apparatus having a harrow according to a second embodiment of the present invention,

a frame having a tractor connection at the front to be towed by the tractor;

a cultivating unit provided with a plurality of cultivators in the width direction at the front portion of the frame;

It is characterized in that it consists of a; rear harrow for crushing the soil cultivated by the cultivation unit by rotating fixed to the frame at the rear of the cultivation unit.

And, the rear harrow is

a support frame elongated in the width direction of the frame;

a rear support arm connecting the frame and the support frame;

a pair of rotating plates axially installed at both ends of the support frame to rotate in the traction direction of the frame;

a connecting bar having a plurality of rods and having both ends fixed while maintaining a predetermined distance along the circumference of the pair of rotating plates to connect the pair of rotating plates;

It is in the form of a ring or a disk and is inserted into or out of the plurality of connecting bars, and the connecting bars are fixed to the outer or inner circumference to support the connecting bar not to be bent, and a plurality of supporting parts are provided at regular intervals; consists of .

In addition, the cultivation apparatus having a harrow according to a third embodiment of the present invention,

a frame having a tractor connection at the front to be towed by the tractor;

a front tiller provided with a plurality of tillers in the width direction at the front portion of the frame;

a rear cultivating unit provided with a plurality of cultivators in the width direction at the rear portion of the frame;

a front harrow fixed to the frame and rotated between the front tillage part and the rear tillage part to crush the soil created by the tillage part;

The rear harrow is fixed to the frame at the rear of the rear tillage part and rotates to crush the soil created by the tillage part; characterized in that it is composed of a.

In addition, sprockets or pulleys are respectively provided on the rotation shafts of the front harrow and the rear harrow, and a chain or a belt is connected between the sprockets or pulleys to transmit rotational force.

And, a hydraulic motor is installed on the rotation shaft of the front harrow and the rear harrow to apply a rotational force.

According to the present invention configured as described above, the front harrow is installed between the front tillage part and the rear tillage part installed in the frame, so that the soil cultivated from the front tillage part is first crushed, so that the soil cultivated in the front tillage part is the rear tillage part There is an advantage in that the problem of accumulation between them is resolved.

In addition, by adjusting the height of the front harrow, it is possible to adjust the hardness of the front tillage part, so there is an advantage of increasing the efficiency of the tillage operation.

In addition, a plurality of rotating connecting bars fixed at both ends to a pair of rotating plates and crushing blades finely crush the lump of soil, and at the same time, the ground is flattened by the rotation of the connecting bar. By-products are also buried in the ground, so there is no need to provide a separate working machine for flattening.

As a result, plowing, crushing, and flattening are performed at the same time, so workability is very good, and since it has a very simple structure and no additional working machine is needed, there is an effect of reducing costs.

1 is a view showing the structure of a tilling apparatus having a harrow according to the present invention.
Figure 2 is a view showing the structure of the harrow applied in the present invention.
Figure 3 is a view showing a structure in which the crushing blade is mounted on the support.
Figure 4 is a view for explaining the operation of adjusting the center of gravity of the front tiller by the center of gravity adjustment unit.
5 is a diagram for explaining the operation of demarcating the edge of the cultivated area of the cultivated land by the front harrow.
6 is a view showing a structure in which the front harrow and the rear harrow are connected by a chain or a belt to transmit a rotational force.
7 is a view showing a structure for applying a rotational force by installing a hydraulic motor in the front harrow and the rear harrow.

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention.

In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

The terms used in the present invention have been selected as currently widely used general terms as possible while considering the functions in the present invention, which may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technology, and the like.

In addition, in specific cases, there are also terms arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding invention.

Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than the name of a simple term.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the embodiments of the present invention illustrated below may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below.

The embodiments of the present invention are provided to more completely explain the present invention to those of ordinary skill in the art.

The first embodiment of the present invention is largely composed of a frame 100 , a front tilling unit 130 , a rear tilling unit 140 , and a rear harrow 200 .

Here, the front tiller 130 and the rear tiller 140 are illustrated as an example of a plow, which is a type of tiller, and may have a form in which only the rear tiller 140 is provided in the frame 100 . .

The frame 100 is towed by being connected to the rear of the tractor, and three-point tractor connection parts 110 and 120 are provided in the vertical direction in front of the frame 100, and a plurality of cultivators are spaced apart from the front portion of the frame 100. A front tilling unit 130 fixed in the width direction of the frame 100 is installed, and a plurality of tilling machines are similarly fixed in the width direction of the frame 100 at intervals at the rear portion of the frame 100 as well. A portion 140 is installed.

As for the front tilling part 130 and the rear tilling part 140 , only one tilling part 130 or 140 is installed on the frame 100 , or both of the two tilling parts 130 and 140 are in the front and rear of the frame 100 . Each can be installed.

A rear harrow 200 is provided at the rear of the rear tillage unit 140, the rear harrow 200 is rotatably axially installed on one side of the frame 100 by a hinge 171, and the other side is a support frame ( It is configured to be lifted from the ground or lowered to the ground by rotating in the vertical direction by the cylinder 170 rotatably shafted by the hinge unit 220 to the 210 .

In addition, a pair of rear support arms 150 and 160 are located on both sides of the cylinder 170 so that the rear harrow 200 is stably supported by the frame 100 and can be rotated in the vertical direction by the cylinder 170, One side of the rear support arms 150 and 160) is rotatably rotatable on the frame 100 in the vertical direction, and the other side is fixed to the rear harrow 200 .

As shown in FIG. 2, the rear harrow 200 is configured in a cylindrical shape that is rotated and rolled in the traction direction of the tractor by a pair of rear support arms 150 and 160, and is long in the width direction of the frame 100. A supporting frame 210 positioned therein is provided so that the other side of the cylinder 170 is axially installed in the center, and the other side of the rear support arms 150 and 160 are fixed to both sides thereof, respectively.

Both ends of the support frame 210 extend downward, and the rotating plates 230 and 240 in the form of disks are respectively rotated in the traction direction of the tractor at the extended portions by the rotating shafts 231,241, and the pair of rotating plates A plurality of connecting bars 250 are positioned between 230 and 240 to connect the rotating plates 230 and 240 to each other.

That is, both ends of the plurality of connecting bars 250 in the form of rods are fixed at regular intervals along the circumference of the rotating plates 230 and 240, so that the rotating plates 230 and 240 spaced apart from each other at both ends of the support frame 210 are connected to each other, Rolling motion is made possible by the traction of the tractor.

At this time, the plurality of connecting bars 250 are preferably connected so that both ends thereof are not horizontally fixed at the same position of the rotating plates 230 and 240, and are slightly inclined downward from one direction to the other.

This is to efficiently crush the soil mass cultivated by the front and rear tillage units 130 and 140 and to effectively bury the by-products such as straw and roots into the ground.

That is, one connecting bar 250 continuously contacts the ground from one side to the other over a period of time so that the crushing operation can be performed while minimizing the resistance of the soil mass or by-products.

In addition, since the connecting bars 250 are in the form of long rods, they can be bent by resistance such as a lump of soil or roots. of the support parts 260 are provided at regular intervals.

The support part 260 has a circular ring shape and is inserted into the plurality of connection bars 250 so that the connection bars 250 are fixed to the outside thereof, or the connection bars 250 are inserted into the inside of the support part 260 . By inserting it, the connecting bars 250 can be fixed to the inside.

Although the drawing shows a structure in which a ring-shaped support part 260 is inserted into the connecting bars 250 and a plurality of connecting bars 250 are fixed to the outside thereof, this may have a disc shape, and the connecting bar ( 250), it has a ring shape when it is fitted on the outside.

The support part 260 has a circular ring shape as shown in FIG. 3 , and a connecting bar fitting groove for inserting and fixing the connecting bar 250 in a portion where the connecting bars 250 are in contact with and fixed to the outside. Since 261 is formed at regular intervals, the connecting bar 250 is inserted into the connecting bar fitting groove 261 and then fixed by welding or the like.

Of course, the support 260 may have a disk shape as described above.

In addition, the crushing blades 270 are fixed to the support portion 260 at regular intervals, and the crushing blades 270 are fixedly installed so as to be detachably attached between the connecting bar fitting grooves 261, and the support portion 260. It is installed so as to protrude outward of the

This is fixed to protrude outward through the gap between the connecting bar 250 and the connecting bar 250 , that is, at a position not interfering with the connecting bar 250 , to finely crush the soil mass created by the cultivation units 130 and 140 .

That is, although the soil mass may be crushed even by the rotation of the connecting bar 250 , the flattening operation can be performed more efficiently by crushing the soil mass more finely by the crushing blade 270 .

A fixing hole 262 is formed between each of the connecting bar fitting grooves 261 for attachment and detachment of the crushing blade 270, and a bolt hole 271 is formed in the lower portion of the crushing blade 270, so that the bolt hole The bolt 272 is inserted through the 271 and the fixing hole 262 , and may have a structure in which it is fastened by a nut 273 .

Of course, the detachable structure of the crushing blade 270 may be realized in various ways, and the structure of the crushing blade 270 may also have various shapes to crush the soil mass.

The operating state according to the first embodiment of the present invention will be described.

During movement, the cylinder 170 is compressed so that the rear harrow 200 can be moved in a lifted state, and in the field for cultivation work, the cylinder 170 is extended so that the rear harrow 200 is lowered to contact the ground.

At this time, when the cylinder 170 is further extended while the rear harrow 200 is in contact with the ground, the rear of the frame 100 is lifted while the rear harrow 200 is supported on the ground, so the front tillage part 130 and the rear tillage part 140 are also lifted, so that the tillage depth, that is, the tiller core becomes shallow.

Conversely, when the cylinder 170 is elongated so that the rear harrow 200 is in a state close to the ground, the frame 100 and the front tiller 130, and the rear in a state in which the rear harrow 200 is not supported on the ground The ground is dug deep by the weight of the cultivation unit 140 , and thus the depth of the field is deepened.

Of course, when the front tillage part 130 and the rear tillage part 140 dig into the ground and the frame 100 descends, the rear harrow 200 again naturally contacts the ground without extension of the cylinder 170 and is supported. Therefore, the light core is fixed at that position by the supporting force.

As a result, by adjusting the height of the rear harrow 200 according to the elongated length of the cylinder 170 , it is possible to adjust the hardness of the front tiller 130 and the rear tiller 140 .

After that, when the tractor advances and tows the frame 100, the front tiller 130 and the rear tiller 140 dig into the ground according to the set hardness, and the rear harrow 200 is the The connecting bar 250 and the crushing blade 270 finely crush the lump of soil formed by the cultivating parts 130 and 140 while rolling in the traction direction by the traction force to perform a flattening operation.

In addition, by-products such as straw and roots are dug into the ground by the rotation of the connecting bar 250 .

Therefore, the stop operation is made very easily by the rotation of the connecting bar 250 .

In the second embodiment of the present invention, the front harrow 300 is provided between the front tillage part 130 and the rear tillage part 140, and the structure of the front harrow 300 is the rear harrow of the first embodiment of the present invention. (200) has the same structure.

However, the structure in which the front harrow 300 is supported on the frame 100 via the radial center adjustment units 310 and 310' is different, and the height of the front harrow 300 is adjusted by the radial center adjustment units 310 and 310'. The hardness of the front tilling unit 130 and the rear tilling unit 140 may be adjusted.

That is, the rear of the frame 100 rotates in the vertical direction with the three-point type tractor connection parts 110 and 120 connected to the tractor as an axis, thereby adjusting the hardness of the front tilling part 130 and the rear tilling part 140, In the case of adjusting the hardness of the rear tillage unit 140 , since the hardness of the front tillage unit 130 is set to be shallower than that of the rear tillage unit 140 , it is impossible to adjust the hardness of the front tillage unit 130 to a desired hardness. .

Accordingly, by adjusting the height of the front harrow 300 , the height of the front of the frame 100 is adjusted to adjust the hardness of the front cultivation unit 130 .

To this end, the front harrow 300 is fixed to the front portion of the frame 100 via the meridian adjustment units 310 and 310 ′, and extended frames 101 and 101 that extend outward from both sides of the front portion of the frame 100 . ') is provided, these extension frames 101 and 101' are formed to protrude more outward than the front cultivating part 130.

The extension frames 101 and 101' are respectively provided with radial adjustment units 310 and 310', and since both sides of the radial adjustment units 310 and 310' have the same shape, the structure is centered on one central adjustment unit 310. Explain.

A pair of support pieces 311 and 312 side by side on the extension frame 101 are fixed at a distance from each other, and the support pieces 311 and 312 have a plurality of pin holes 313 and 314 at the same position. is formed

These pin holes 313 and 314 are formed in the vertical direction, and preferably formed to follow the rotation path of the front support arm 320 .

The front support arm 320 is bent obliquely downward so that the rear thereof faces the front harrow 300, and the front thereof is rotated in the vertical direction by the shaft tongue 315 between the pair of support pieces 311 and 312. is condensed.

In addition, fixing pins 316 and 317 are inserted into the pin holes 313 and 314 to fix the upper and lower rotations of the front support arm 320 , and the two fixing pins 316 and 317 are installed on the upper side of the front support arm 320 . By being inserted into the pin holes 313 and 314 from the lower side, the front support arm 320 is caught by the fixing pins 316 and 317 and is fixed so as not to rotate.

That is, the fixing pins 316 and 317 serve as stoppers to prevent rotation of the front support arm 320 .

A plurality of these pin holes 313 and 314 are formed in the maximum rotational angle range of the front support arm 320, and the lower end of the pin holes 313 and 314 formed at the uppermost side supports the front support arm 320 when the front support arm 320 is rotated up to the maximum. It is the same height as the upper end of the arm 320, and the upper end of the pin holes 313 and 314 formed at the lowermost side also has the same height as the lower end of the front support arm 320 when the front support arm 320 is rotated to the lower side. should be

In addition, the interval between each of the pin holes 313 and 314 is as much as the thickness of the front support arm 320 .

Both sides of the front harrow 300 are coupled to the front support arm 320 so as to be rotated by the rotation shaft 321 .

Therefore, when the front support arm 320 is fixed by adjusting the inclination angle by the pin holes 313 and 314 and the fixing pins 316 and 317 as shown in FIG. 4, the front harrow 300 is grounded to the ground (G) and is supported. The lifting level of the frame 100 is adjusted by the grounding force, and eventually, the depth, that is, the depth at which the front tiller 130 digs into the ground, is adjusted.

That is, if you want to make the center of gravity shallow, the inclination angle of the front support arm 320 is increased so that the front harrow 300 pushes and lifts the frame 100, thereby increasing the separation distance between the frame 100 and the ground (G). If you want to adjust the hardness of the cultivator 130 to be shallow and conversely to deepen the hardness, make the angle of the front support arm 320 smooth and decrease the separation distance between the frame 100 and the ground (G). 130) to dig deep into the ground.

As another form of this latitude adjustment unit 310, a pin hole is formed through the front support arm 320, so that one fixing pin passes through the pin hole 313 and 314 and the pin hole formed in the front support arm 320 and is fastened. It may have a structure for fixing the rotation of the front support arm 320 .

In addition, the front harrow 300 is located between the front tillage part 130 and the rear tillage part 140 to crush the soil created by the front tillage part 130 and pass it to the rear, the front harrow 300 In the case of a cultivator equipped with only the front tillage part 130 and the rear tillage part 140 without being equipped with a cultivator, the lump of soil created from the front tillage part 130 is caught by the rear tillage part 140 and is not smoothly discharged to the rear. Failure to do so will result in the accumulation of soil lumps.

In particular, in arable land such as mud, a large amount of backlog occurs between the front tillage unit 130 and the rear tillage unit 140 due to such a lump of soil, making work difficult.

Therefore, the front harrow 300 of the present invention can be easily discharged to the rear through between the rear tillage units 140 by crushing the soil mass created from the front tillage unit 130, so that the accumulation of the soil mass is reduced. it will be resolved

On the other hand, in the case of cultivating arable land in the form of mud, when the rear cultivating unit 140 digs the ground, even the soil outside the side part of the part to be cultivated is cultivated in the form of a lump, so the edge surface of the arable land is very messy.

Therefore, when the front harrow 300 is towed, the rotary plate 322 cuts the land in a straight line while digging into the cultivated land, so that the following rear tillage 140 plows the ground only within the cut-out range to cut the edge of the cultivated land. can be cleaned

To this end, as shown in Figure 5, the rotation plate 322 is rotated by making the interval between the outer peripheral surface of the rotation plate 322 of the front harrow 300 and the connection bar 350 to have a spacing D corresponding to the cutting depth of the cultivated land. while cutting the arable land.

As a third embodiment of the present invention, a front harrow 300 is provided between the front tillage unit 130 and the rear tillage unit 140 , and a rear harrow 200 is provided at the rear of the rear tillage unit 140 . can have a structure.

The structures of the front harrow 300 and the rear harrow 200 are the same as the structures described above.

Accordingly, the front harrow 300 primarily crushes the lump of soil created by the front tiller 130 to solve the congestion phenomenon, and the rear harrow 200 secondly crushes the soil finely, and even the flattening operation is performed.

Meanwhile, as shown in FIG. 6 , a chain 400 or a belt may connect between the front harrow 300 and the rear harrow 200 to transmit rotational force to each other. A sprocket 370 or a pulley is coupled to the rotation shaft 321 and the rotation shaft 231 of the rear harrow 200, respectively, and a chain 400 or a belt connects the sprocket 370 or the pulley to transmit rotational force, that is, driving force to each other. do.

That is, when the rotational force of any one of the harrows is lowered by the static water, the other one of the harrows transmits and supplements the rotational force to enable smooth crushing and traction.

In addition, the gear ratio of the sprockets 370 and 280 or the pulley can be varied. In the case of the front harrow 300, the soil is finely crushed by fast rotation, and in the case of the rear harrow 200, the front harrow ( 300), since it is preferable to rotate more slowly, the gear ratio can be set by changing the diameter of the sprockets 370 and 280 or the pulley.

7 shows that the first hydraulic motor 371 is fixed to the front support arm 320 of the front harrow 300 and is axially coupled to the rotation shaft 321, and is also provided to the support frame 210 of the rear harrow 200. 2 The hydraulic motor 371 is fixed and shaft-coupled with the rotating shaft 231 , so that a rotational force is applied to the front harrow 300 and the rear harrow 200 by hydraulic pressure applied from the tractor.

At this time, the first hydraulic motor 371 rotates the rotating shaft 321 by receiving the hydraulic pressure supplied from the tractor through the first hydraulic line 410 , and the discharged hydraulic pressure again through the second hydraulic line 420 . It is applied to the hydraulic motor 281 to rotate the rotating shaft 231 , and the discharged hydraulic pressure is returned to the tractor through the third hydraulic line 430 .

As described above in detail a specific part of the content of the present invention, for those of ordinary skill in the art, it is clear that this specific description is only a preferred embodiment, and the scope of the present invention is not limited thereby. something to do.

Accordingly, it is intended that the substantial scope of the present invention be defined by the appended claims and their equivalents.

100 : frame
110, 120: tractor connection part
130: front tillage part
140: rear tillage
150,160: rear support arm
170: cylinder
200: rear harrow
210: support frame
220: hinge
230,240: rotating plate
231,241: axis of rotation
250: connection bar
260: support
261: connection bar fitting groove
262: fixed hole
270: crushing blade
271: bolt ball
272 : bolt
273 : Nut
280: sprocket
281: hydraulic motor
300: forward harrow
310: meridian control unit
311,312: support piece
313,314: pin ball
315: shaft snow part
316,317: fixing pin
320: anterior support arm
321: axis of rotation
350: connection bar
370: sprocket
371: hydraulic motor
400: chain

Claims (13)

a frame having a tractor connection at the front to be towed by the tractor;
a front tiller provided with a plurality of tillers in the width direction at the front portion of the frame;
a rear cultivating unit provided with a plurality of cultivators in the width direction at the rear portion of the frame;
a harrow for crushing the soil cultivated by the tillage part by being fixed to the frame and rotating between the front tillage part and the rear tillage part;
A pair of front support arms which are axially rotatable on one side from both sides of the frame, and the other side chuxols the harrow by a rotating shaft from the outside of the harrow;
It is fixed to both sides of the frame, respectively, by fixing the vertical rotation angle of the pair of support arms to adjust the hardness of the harrow; is configured to include a;
The heart control unit
a pair of support pieces provided with a distance from each other side by side in the lateral direction of the frame and having a plurality of pin holes formed in the vertical direction;
and a pair of fixing pins respectively inserted into pin holes of the support piece at the upper and lower sides of the support arm to fix the upper and lower movements of the front support arm.
a frame having a tractor connection at the front to be towed by the tractor;
a cultivating unit provided with a plurality of cultivators in the width direction at the front portion of the frame;
Harrow for crushing the soil cultivated by the cultivation unit by rotating fixed to the frame at the rear of the cultivation unit;
A pair of front support arms which are axially rotatable on one side from both sides of the frame, and the other side chuxols the harrow by a rotating shaft from the outside of the harrow;
It is fixed to both sides of the frame, respectively, by fixing the vertical rotation angle of the pair of support arms to adjust the hardness of the harrow; is configured to include a;
The heart control unit
a pair of support pieces provided with a distance from each other side by side in the lateral direction of the frame and having a plurality of pin holes formed in the vertical direction;
and a pair of fixing pins respectively inserted into pin holes of the support piece at the upper and lower sides of the support arm to fix the upper and lower movements of the front support arm.
a frame having a tractor connection at the front to be towed by the tractor;
a front tiller provided with a plurality of tillers in the width direction at the front portion of the frame;
a rear cultivating unit provided with a plurality of cultivators in the width direction at the rear portion of the frame;
a front harrow fixed to the frame and rotated between the front tillage part and the rear tillage part to crush the soil created by the tillage part;
a rear harrow fixed to the frame at the rear of the rear tillage part and crushing the soil created by the tillage part by rotating;
A pair of front support arms that are axially rotatable on one side from both sides of the frame, and the other side chukseol the front harrow by a rotating shaft from the outside of the front harrow;
It is fixed to both sides of the frame, respectively, by fixing the vertical rotation angle of the pair of support arms to adjust the radial center of the front harrow; is configured to include a;
The heart control unit
a pair of support pieces provided with a distance from each other side by side in the lateral direction of the frame and having a plurality of pin holes formed in the vertical direction;
and a pair of fixing pins respectively inserted into pin holes of the support piece at the upper and lower sides of the support arm to fix the upper and lower movements of the front support arm.
delete 4. The method according to any one of claims 1 to 3, wherein the harrow or the forward harrow is
a pair of rotating plates axially configured to rotate on the other side of the pair of front support arms;
a connecting bar having a plurality of rods and having both ends fixed while maintaining a predetermined distance along the circumference of the pair of rotating plates to connect the pair of rotating plates;
It is in the form of a ring or disc and is inserted into or out of the plurality of connecting bars, and the connecting bars are fixed around the outer or inner circumference to support the connecting bar so as not to be bent, and a plurality of front support portions are provided at regular intervals; Consisting of Cultivation apparatus having a harrow, characterized in that.
4. The method of claim 3, wherein the rear harrow
a support frame elongated in the width direction of the frame;
a rear support arm connecting the frame and the support frame;
a pair of rotating plates axially installed at both ends of the support frame to rotate in the traction direction of the frame;
a connecting bar having a plurality of rods and having both ends fixed while maintaining a predetermined distance along the circumference of the pair of rotating plates to connect the pair of rotating plates;
It is in the form of a ring or disc and is inserted into or out of the plurality of connecting bars, and the connecting bars are fixed to the outer or inner circumference to support the connecting bar so as not to be bent, and a plurality of support parts provided at regular intervals. A tiller having a harrow characterized by it.
delete [Claim 6] The tillage apparatus with a harrow according to claim 5, further comprising: a crushing blade installed at regular intervals along the circumference of the support part and provided to protrude outward of the support part.
[Claim 9] The tillage apparatus with a harrow according to claim 8, wherein the crushing blade is configured to be detachably attached to the support part.
[Claim 9] The tillage apparatus with a harrow according to claim 8, wherein a fixing hole is formed in the support portion, and the crushing blade is fastened to the fixing hole by a bolt.
According to claim 6, wherein the rear support arm is rotatably installed from a frame, one side of a cylinder that is contracted and contracted by hydraulic pressure is rotatably connected to the frame, and the other side of the cylinder is rotatably connected to the support frame. Cultivation apparatus having a harrow, characterized in that.
[Claim 4] The cultivation apparatus with a harrow according to claim 3, wherein a sprocket or a pulley is respectively provided on the rotation shafts of the front harrow and the rear harrow, and a chain or a belt is connected between the sprockets or pulleys to transmit rotational force.
[Claim 4] The tillage apparatus with a harrow according to claim 3, wherein a hydraulic motor is installed on the rotation shaft of the front harrow and the rear harrow to apply a rotational force.

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