KR20200044657A - Cultivator with harrow - Google Patents

Abstract

The present invention relates to a cultivator with a harrow, and more specifically, to a cultivator with a harrow which is mounted on a cultivator for cultivating farmland by means of traction power of a tractor to crush cultivated land while evenly flattening the same. To this end, the present invention comprises: a frame having a tractor connection unit at the front so as to be tracked by a tractor; a front cultivation unit having a plurality of cultivators provided in a width direction at a front portion of the frame; a rear cultivation unit having a plurality of cultivators provided in a width direction at a rear portion of the frame; a front harrow fixed to the frame between the front cultivation unit and the rear cultivation unit and rotating to crush soil cultivated by the cultivation units; and a rear harrow fixed to the frame at the rear of the rear cultivation unit and rotating to crush soil cultivated by the cultivation units.

Description

Cultivator with harrow

The present invention relates to a cultivation apparatus having a harrow, and particularly to a cultivation apparatus having a harrow that is installed on a cultivation apparatus for cultivating a cultivated land by the tractor's traction force and crushes and evenly flattens the cultivated land.

In the present invention, the conventional technique and the technique of the present invention are described, for example, as a plow that is typically used among cultivators, but this is not limited to the plow.

In general, the plow is used to cultivate crops, dig up the soil using an animal or a machine such as a horse, and turn it upside down.

As a typical tractor plow device, for example, as shown in Utility Model No. 20-0200074 (an improved plow for a tractor) registered by the present applicant, a plurality of front plow units are added to a front frame of a support composed of a front frame and a rear frame. It is provided, and the rear frame includes a structure in which a plurality of rear frames are provided.

Due to the plowing device having such a structure, the land of the arable land is rolled up, and the harrow uses a harrow to finely crush soils generated during the process.

In the registered patent No. 10-1053758 (Harrow discharger equipped with a moisturizing part), a plurality of cultivating blades vertically rotatable at regular intervals from the lower part of the main body are gear-engaged with the driving part of the tractor to receive power and thus apply power to the horizontal direction. By rotating, the soil is finely crushed.

However, the conventional harrow has a gear fastening structure for transmitting power to a plurality of cultivated blades, and the structure is very complicated, and the manufacturing cost is also increased by the complexity.

In addition, these harrows can crush lumps of soil finely, but they do not flatten the crushed soil, and by-products such as straw and roots that are dug up when digging the soil are exposed on the ground and must be removed separately. It is not good.

<Prior Art Document>

1. Registered Utility Model No. 20-0200074

   (Improvement plow for tractor)

2. Registered Patent No. 10-1053758

   (Harrow earther with moisturizing part)

In order to solve this conventional problem, the present invention cultivates a harrow having a harrow capable of crushing a lump of soil formed by a cultivator, leveling the crushed soil, and simultaneously pressing a crushed by-product into the ground. The purpose is to provide.

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

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

A front tilling part provided with a plurality of tillers in a width direction from the front part of the frame;

A rear tilling unit provided with a plurality of tillers in a width direction from a rear portion of the frame;

It is composed of; a front harrow crushing the soil raised by the cultivation portion by being fixed to the frame and rotating between the front cultivation portion and the rear cultivation portion.

In addition, a pair of anterior support arms are constructed on one side of both sides of the frame to be axially rotatable, and the other side is constructed by a rotating shaft outside the front harrow;

It is fixed to the frame, by fixing the vertical angle of rotation of the front support arm to adjust the center of gravity of the tiller; It is configured to include.

And, the front harrow

A pair of rotating plates stacked to rotate on the other side of the pair of front support arms, respectively;

A plurality of rods are provided, and both ends are fixed while maintaining a predetermined interval 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 disc and is inserted into the inside or outside of the plurality of connection bars, and the connection bars are fixed around the outside or inside to prevent the connection bars from bending, and the front support unit is provided with a plurality at regular intervals. do

And, the eccentric control unit

The support piece is provided in the lateral direction of the frame, a plurality of pin holes are formed in the vertical direction,

It is inserted into the pin hole of the support piece is fixed pin for fixing the upper and lower movement of the support arm.

And, it is installed at regular intervals along the circumference of the support, and further provided with a crushing blade provided to protrude outwardly of the support, the crushing blade is detachable to the support, and a fixing hole is formed in the support. , The crushing blade is configured to be fastened to the fixing hole by a bolt.

In addition, the tilling device having a harrow according to the second embodiment of the present invention,

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

A cultivation part provided with a plurality of cultivators in the width direction from the front part of the frame;

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

And, the rear harrow

A support frame positioned long in the width direction of the frame;

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

A pair of rotating plates that are stacked at both ends of the support frame to rotate in the traction direction of the frame, respectively;

A plurality of rods are provided, and both ends are fixed while maintaining a predetermined interval 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 the inside or the outside of the plurality of connection bars, and the connection bars are fixed around the outside or inside to prevent the connection bars from bending, and a plurality of support portions are provided at regular intervals. .

In addition, the tilling device having a harrow according to the third embodiment of the present invention,

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

A front tilling part provided with a plurality of tillers in a width direction from the front part of the frame;

A rear tilling unit provided with a plurality of tillers in a width direction from a rear portion of the frame;

A front harrow crushing the soil raised by the cultivation portion by being fixed to the frame and rotating between the front cultivation portion and the rear cultivation portion;

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

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

In addition, a hydraulic motor is installed on the rotation shafts of the front harrow and the rear harrow to be configured to apply rotational force.

According to the present invention configured as described above, the front harrow is installed between the front tilling unit and the rear tilling unit installed in the frame, and thus the soil raised from the front tilling unit is firstly crushed, and the soil raised by the front tilling unit is rearward tilling unit. There is an advantage that the problem of being accumulated in between is solved.

In addition, by adjusting the height of the front harrow, it is possible to adjust the center of gravity of the front tillage part, which also has the advantage of increasing the efficiency of tilling work.

In addition, a plurality of rotating connecting bars with both ends fixed to a pair of rotating plates and a crushed earth lump produced by a crushing blade are finely crushed, and at the same time, the ground is flattened by the rotation of the connecting bar, as well as straw or roots. By-products are also buried in the ground, so there is no need for a separate working machine for flattening.

For this reason, not only is the workability very good because cultivation, crushing, and flattening work are performed at the same time, but it is also a very simple structure, and a separate work machine is not required, thereby reducing the cost.

1 is a view showing the structure of a tilling device 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.
4 is a view for explaining the operation of adjusting the center of gravity of the front cultivation unit by the center of gravity adjusting unit.
5 is a view for explaining an operation of demarcating the edge of the cultivation part of the arable 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 belt to transmit rotational force.
7 is a view showing a structure for applying a rotational force by installing a hydraulic motor to the front harrow and the rear harrow.

The above-described objects, features, and advantages will be described in detail below with reference to the accompanying drawings, and accordingly, a person skilled in the art to which the present invention pertains can easily implement the technical spirit of the present invention.

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

The terminology used in the present invention was selected from the general terms that are currently widely used while considering the functions in the present invention, but this may vary according to the intention or precedent of a person skilled in the art or the appearance of new technologies.

In addition, in certain cases, some terms are arbitrarily selected by the applicant, and in this case, their meanings will be described in detail in the description of the applicable invention.

Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the contents of the present invention, not simply the names of the terms.

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

However, the embodiments of the present invention exemplified 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 fully describe the present invention to those skilled 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 cultivation unit 130 and the rear cultivation unit 140 are shown as an example of a plow which is one type of cultivator, and may also have a form in which only the rear cultivation unit 140 is provided in the frame 100. .

The frame 100 is connected to the rear of the tractor and is towed, and is provided with three-point tractor connection parts 110 and 120 in the vertical direction of the front, and a plurality of tillers are spaced apart at the front part of the frame 100. The front cultivation part 130 fixed in the width direction of the frame 100 is installed, and a rear cultivation fixed in the width direction of the frame 100 is also provided with a plurality of tillers at intervals in the rear part of the frame 100 as well. The unit 140 is installed.

The front cultivation unit 130 and the rear cultivation unit 140 are provided with only one cultivation unit 130 or 140 on the frame 100, or both cultivation units 130 and 140 are located in the front and rear of the frame 100. Each can be installed.

The rear harrow 200 is provided at the rear of the rear cultivation unit 140, one side of the rear harrow 200 is rotatably constructed by the hinge 171 on the frame 100, 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 built by the hinge 220 at 210.

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

The rear harrow 200 is configured in the form of an analog barrel that rotates and rolls in the traction direction of the tractor by a pair of rear support arms 150 and 160, as shown in FIG. 2, elongated in the width direction of the frame 100 The supporting frame 210 is provided so that the other side of the cylinder 170 is laid in the center, and the other side of the rear support arms 150 and 160 are fixed to both sides.

Both ends of the support frame 210 are extended to the lower side, and the extended portions are respectively stacked by rotating shafts 231 and 241 so that the disk-shaped rotating plates 230 and 240 rotate in the traction direction of the tractor, respectively. A plurality of connection bars 250 are positioned between the 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 to connect the rotating plates 230 and 240 spaced apart from each other at both ends of the support frame 210, Rolling motion is enabled by the tractor's traction.

At this time, it is preferable that the plurality of connection bars 250 are connected such 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 side to the other.

This is to efficiently crush the lumps of soil cultivated by the front and rear cultivation units 130 and 140, and also to effectively bury by-products such as straw and roots into the ground.

That is, by continuously contacting the connection bar 250 from one side to the other over a period of time, the crushing operation can be performed while minimizing the resistance of dirt or by-products.

In addition, since the connecting bars 250 are in the form of long rods, they may be bent by resistance such as soil clods or roots, so that the connecting bars 250 are stably maintained and plural to prevent bending. The support portion 260 is provided at regular intervals.

The support part 260 is a circular ring shape and is inserted inside the plurality of connection bars 250 to which the connection bars 250 are fixed to the outside or the connection bars 250 to the inside of the support part 260 By inserting it, it is possible to fix the connection bars 250 inside.

In the drawing, although the ring-shaped support portion 260 is inserted into the connection bars 250 and shows a structure in which a plurality of connection bars 250 are fixed to the outside, it may have a disk shape, and the connection bar ( If it fits outside of 250), it will have the shape of a ring.

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

Of course, this support 260 may have the shape of a disc as mentioned above.

In addition, a crushing blade 270 is fixed to the support portion 260 at regular intervals, and the crushing blade 270 is fixedly installed to be detachable between the connecting bar fitting grooves 261, and the support portion 260 is installed. It is installed to protrude in the outer direction of.

This is fixed so as to protrude outward through the gap between the connection bar 250, that is, the connection bar 250, so as to finely crush the soil mass raised by the cultivation unit 130,140.

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

For the attachment and detachment of the crushing blade 270, a fixing hole 262 is formed between the connecting bar fitting grooves 261, and a bolt hole 271 is formed under the crushing blade 270, so that the bolt hole The bolt 272 may be inserted through the 271 and the fixing hole 262, and may have a structure fastened by the nut 273.

Of course, such a 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 forms to crush soil.

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

During the movement, the cylinder 170 is compressed so that the rear harrow 200 can be moved in a lifted state. In the field for cultivation, the cylinder 170 is extended to lower the rear harrow 200 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 that the front tillage part The 130 and the rear cultivation unit 140 are also lifted, so that the cultivation depth, that is, the angulation is shallow.

Conversely, when the cylinder 170 is extended so that the rear harrow 200 is close to the ground, the frame 100 and the front cultivation unit 130 are rearward, and the rear harrow 200 is not supported on the ground. By the self-weight of the cultivation unit 140, the soil is deeply dug, so that the mind is deepened.

Of course, when the front cultivation unit 130 and the rear cultivation unit 140 dig into the ground and the frame 100 descends, the rear harrow 200 is naturally brought into contact with the ground without extending the cylinder 170. Therefore, the center of gravity is fixed at that position by the supporting force.

After all, by adjusting the height of the rear harrow 200 according to the elongated length of the cylinder 170, it is possible to adjust the center of gravity of the front cultivation unit 130 and the rear cultivation unit 140.

Subsequently, when the tractor advances and tow the frame 100, the front tilling unit 130 and the rear tilling unit 140 dig the ground according to the set inclination and plow the ground, and the rear harrow 200 uses the The flattening work is performed while the connection bar 250 and the crushing blade 270 finely crush the soil mass raised by the cultivation units 130 and 140 while rolling in the traction direction by the traction force.

In addition, by rotating the connecting bar 250, by-products such as straw and roots are buried on the ground.

Therefore, it is very easy to stop the work by rotating the connecting bar 250.

The second embodiment of the present invention is provided with a front harrow 300 between the front tilling unit 130 and the rear tilling unit 140, and the structure of the front harrow 300 is the rear harrow of the first embodiment of the present invention. It is the same as the structure of (200).

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

That is, the center of the front cultivation unit 130 and the rear cultivation unit 140 is adjusted by rotating the rear of the frame 100 in the vertical direction with the three-point tractor connection units 110 and 120 connected to the tractor as an axis, When adjusting the center of gravity of the rear tilling part 140, since the center of gravity of the front tilling part 130 is set shallower than the center of the rear tilling part 140, it is impossible to adjust the front tilling part 130 to a desired center. .

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

To this end, the front harrow 300 is fixed to the front part of the frame 100 via the center of gravity adjustment parts 310 and 310 ', and the extended frames 101 and 101 further extended outward from both sides of the front part of the frame 100 ') Is provided, such an extended frame (101,101') is formed to protrude more outward than the front cultivation (130).

The elongation frames 101 and 101 'are provided with eccentricity adjusting parts 310 and 310', respectively, and since both sides of the eccentricity adjusting parts 310 and 310 'have the same shape, the structure is centered around one eccentricity adjusting part 310. Explain.

In the center of gravity adjusting part 310, a pair of support pieces 311 and 312 are fixed at a distance from each other on the extension frame 101, and a plurality of pin holes 313 and 314 are provided at the same position in the support pieces 311 and 312. Is formed.

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

The front support arm 320 is bent downwardly so that its rear side faces the front harrow 300, and the front side thereof is rotated up and down by the snow accumulation section 315 between the pair of support pieces 311 and 312. It is snowy.

In addition, fixing pins 316 and 317 are inserted into the pin holes 313 and 314 to fix rotations of the upper and lower directions of the front supporting arm 320, and two fixing pins 316 and 317 are upper sides of the front supporting arm 320. By being inserted into the pin holes 313 and 314 from the bottom and the bottom, 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 a stopper to prevent rotation of the front support arm 320.

A plurality of such pinholes 313 and 314 are formed in the maximum rotation angle range of the front support arm 320, and the lower portion of the pinholes 313 and 314 formed on the uppermost side is supported forward when the front support arm 320 is rotated upward to the upper side. It becomes the same height as the upper part of the arm 320, and the upper part of the pinholes 313 and 314 formed at the lowermost side is the same height as the lower part of the front support arm 320 when the front support arm 320 is rotated downward to the maximum. Should be

In addition, the spacing of each pin hole 313 and 314 is equal to the thickness of the front support arm 320.

The front support arm 320 is coupled so that both sides of the front harrow 300 are built up and 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 and held on the ground G. The extent to which the frame 100 is lifted is adjusted by the grounding force, and thus, the depth at which the front tiller 130 digs the ground, that is, the center of gravity is adjusted.

That is, if you want to shallow the center of gravity, by increasing the inclination angle of the front support arm 320, the front harrow 300 pushes and lifts the frame 100, thereby increasing the distance between the frame 100 and the ground G to increase the front. If you want to shallowly adjust the center of gravity of the cultivator 130 and, on the contrary, to deepen the center of gravity, the angle of the front support arm 320 is gradually lowered to decrease the separation distance between the frame 100 and the ground G, thereby reducing the distance between the front cultivator ( 130) will be adjusted to dig deeper into the ground.

As another form of the center of gravity adjustment unit 310, a pinhole is formed through the front support arm 320 so that one fixing pin is fastened through the pinhole formed in the pinholes 313 and 314 and the front support arm 320. 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 cultivation unit 130 and the rear cultivation unit 140 to crush the soil raised by the front cultivation unit 130 and pass it to the rear. The front harrow 300 In the case of a tiller that is not provided with only the front tilling unit 130 and the rear tilling unit 140, soil clod from the front tilling unit 130 is caught in the rear tilling unit 140 and is not discharged smoothly to the rear. Failure to do so causes the accumulation of soil mass.

In particular, in arable lands such as mud, a lot of accumulation occurs between the front cultivation unit 130 and the rear cultivation unit 140, and the work is not easy.

Therefore, the front harrow 300 of the present invention can be easily discharged to the rear through the rear cultivation section 140 by crushing the soil lumps raised from the front cultivation section 130, so that the accumulation of soil lumps may occur. It will be resolved.

On the other hand, when cultivating the soil in the form of mud, the rear cultivation part 140 is raised in the form of a lump to the soil outside the side part of the area to be cultivated when it digs the ground, so the edge surface of the cultivated land is very dirty.

Therefore, when the front harrow 300 is towed, the rotating plate 322 digs the arable land and cuts the land in a straight line, so that the rear arable portion 140 that follows follows only plows the land within the incised area, thereby cutting the edge of the arable land. It can be cleaned.

To this end, the rotating plate 322 is rotated by making the spacing between the outer circumferential surface of the rotating plate 322 of the front harrow 300 and the connecting bar 350 corresponding to the cutting depth of the arable land as shown in FIG. 5. In doing so, they will cut the arable land.

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

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

Therefore, the front harrow 300 firstly crushes the soil mass raised by the front cultivation unit 130 to solve the accumulation phenomenon, and the rear harrow 200 secondly crushes the soil finely to level the work.

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

In other words, when one of the harrows is deteriorated by the affection, the other harrow transmits and supplements the rotational force to enable smooth crushing and towing.

In addition, the gear ratio of the sprockets 370 or 280 or pulleys may be different. In the case of the front harrow 300, the soil is finely crushed by rapid rotation, and in the case of the rear harrow 200, the front harrow for crushing and flattening work ( 300) Since it is preferable to rotate more slowly, it is possible to set the gear ratio by different diameters of the sprockets 370 and 280 or pulleys.

7 is a first hydraulic motor 371 is fixed to the front support arm 320 of the front harrow 300 is axially coupled to the rotating shaft 321, and is also made to the support frame 210 of the rear harrow 200 2 The hydraulic motor 371 is fixed and is axially coupled to the rotating shaft 231, thereby applying a rotational force 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 receives the hydraulic pressure supplied from the tractor through the first hydraulic line 410 to rotate the rotating shaft 321, and the discharged hydraulic pressure is again through the second hydraulic line 420. It is applied to the hydraulic motor 281 to rotate the rotating shaft 231, the discharged hydraulic pressure has a structure that is returned to the tractor through the third hydraulic line 430.

Since the specific parts of the present invention have been described in detail above, for those skilled in the art, this specific technique is only a preferred embodiment, and it is obvious that the scope of the present invention is not limited thereby. something to do.

Accordingly, the substantial scope of the present invention will be defined by the appended claims and their equivalents.

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

Claims (13)

A frame having a tractor connection in front to be towed by the tractor;
A front tilling part provided with a plurality of tillers in a width direction from the front part of the frame;
A rear tilling unit provided with a plurality of tillers in a width direction from a rear portion of the frame;
Cultivation apparatus having a harrow, characterized in that consisting of; the front harrow crushing the soil raised by the cultivation unit fixed to the frame by rotating between the front cultivation unit and the rear cultivation unit.
A frame having a tractor connection in front to be towed by the tractor;
A cultivation part provided with a plurality of cultivators in the width direction from the front part of the frame;
Cultivation apparatus having a harrow, characterized in that consisting of; a rear harrow crushing the soil raised by the cultivation unit is fixed to the frame by rotating from the rear of the cultivation unit.
A frame having a tractor connection in front to be towed by the tractor;
A front tilling part provided with a plurality of tillers in a width direction from the front part of the frame;
A rear tilling unit provided with a plurality of tillers in a width direction from a rear portion of the frame;
A front harrow crushing the soil raised by the cultivation portion by being fixed to the frame and rotating between the front cultivation portion and the rear cultivation portion;
Cultivation apparatus having a harrow, characterized in that consisting of; a rear harrow crushing the soil raised by the cultivation unit is fixed to the frame from the rear of the rear cultivation unit.
According to any one of claims 1 or 3,
A pair of front support arms on one side of both sides of the frame, which are constructed to enable axial rotation, and the other side of which is built up by a rotation axis on the outside of the front harrow;
Cultivation device having a harrow, characterized in that comprises a; fixed to the frame, by adjusting the tilt angle of the tiller by fixing the vertical angle of rotation of the front support arm.
The front harrow of claim 4,
A pair of rotating plates stacked to rotate on the other side of the pair of front support arms, respectively;
A plurality of rods are provided, and both ends are fixed while maintaining a predetermined interval 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 disc and is inserted into the inside or outside of the plurality of connection bars, and the connection bars are fixed around the outside or inside to prevent the connection bars from bending, and the front support unit is provided with a plurality at regular intervals. Cultivation device having a harrow, characterized in that.
The rear harrow according to any one of claims 2 or 3,
A support frame positioned long in the width direction of the frame;
A rear support arm connecting the frame and the support frame;
A pair of rotating plates that are stacked at both ends of the support frame to rotate in the traction direction of the frame, respectively;
A plurality of rods are provided, and both ends are fixed while maintaining a predetermined interval 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 the inside or outside of the plurality of connection bars, and the connection bars are fixed around the outside or inside to prevent the connection bars from bending, and a plurality of support portions are provided at regular intervals. Cultivating device having a harrow characterized by.
According to claim 4, The eccentric control unit
A support piece provided in the lateral direction of the frame and having a plurality of pin holes in the vertical direction;
Cultivation device having a harrow, characterized in that consisting of; fixed pins that are inserted into the pin hole of the support piece to fix the upper and lower movement of the front support arm.
According to any one of claims 5 or 6, It has a harrow characterized in that it is further provided with a crushing blade that is installed at regular intervals along the periphery of the support portion and is projected in the outward direction of the support portion. Tillage device.
9. The tilling device with a harrow according to claim 8, wherein the crushing blade is configured to be detachably attached to the support.
The tilling apparatus with a harrow according to any one of claims 5 to 6, wherein a fixing hole is formed in the support portion, and the crushing blade is configured to be fastened to the fixing hole by a bolt.
According to claim 6, The rear support arm is rotatably installed from the frame, the frame is rotatably connected to one side of the cylinder that is stretched by hydraulic pressure, the other side of the cylinder is rotatably connected to the support frame Cultivation device having a harrow, characterized in that.
The tilling apparatus according to claim 3, wherein a sprocket or a pulley is provided on each of the rotation shafts of the front harrow and the rear harrow, and a chain or belt is connected between the sprocket or pulley to transmit rotational force.
The tilling apparatus according to claim 3, wherein a hydraulic motor is installed on the rotation shafts of the front and rear harrows to apply rotational force.

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