JP2021151227A - Cultivation apparatus having harrows - Google Patents

Abstract

To provide a cultivation apparatus having harrows.SOLUTION: The present invention relates to a cultivation apparatus having harrows and, particularly, relates to a cultivation apparatus having harrows, the cultivation apparatus cultivating a land under cultivation using traction force of a tractor, the harrow provided on the cultivation apparatus to crush and uniformly level a cultivated land. The cultivation apparatus comprises: a frame having a tractor coupling part in front thereof so as to be pulled by the tractor; a front cultivation part having a plurality of cultivators in a width direction at a front part of the frame; a rear cultivation part having a plurality of cultivators in a width direction at a rear part of the frame; a front harrow that is fixed to the frame at a position between the front cultivation part and the rear cultivation part and rotates to crush soil dug up by the cultivation part; and a rear harrow that is fixed to the frame at a position behind the rear cultivation part and rotates to crush soil dug up by the cultivation part.SELECTED DRAWING: Figure 1

Description

The present invention relates to a cultivating device having a halo, and in particular, crushes the cultivated land provided in the cultivating device for cultivating the cultivated land by the traction force of a tractor, and has a uniformly agitated squid. Regarding cultivation equipment.

In the present invention, the conventional technique and the technique of the present invention will be described by taking a plow, which is typically used among cultivators, as an example, but the present invention is not limited to the plow.

In general, plows are used to dig up soil using livestock such as cows and horses or machines for the purpose of cultivating crops, and then turn it over to make ridges.

An ordinary tractor plow device is, for example, a support composed of a front frame and a rear frame, as disclosed in the Republic of Korea Utility Model No. 20-0200074 (improved plow for tractors) registered by this applicant. A structure in which a plurality of front plows are provided on the front frame of the tractor and a plurality of rear frames are provided on the rear frame can be mentioned.

The land of the cultivated land is dug up by the plow device of such a structure, and a harrow is used to crush the soil mass generated during the excavation into small pieces.

In the Republic of Korea Registered Patent No. 10-1053758 (Magwa Cultivator with Plow), a plurality of tilling blades formed vertically at regular intervals on the lower side of the main body are the driving parts of the tractor. By being engaged with the gear and applying power, it rotates in the horizontal direction and crushes the soil into small pieces.

However, since the conventional maguwa has a gear engaging structure for transmitting power to a plurality of tilling blades, the structure is very complicated, and the manufacturing cost also rises due to the complexity. There is an inconvenience.

In addition, although such a harrow can crush a mass of soil into small pieces, it cannot stir up the crushed soil, and moreover, by-products such as straw and plant roots that are dug up when the soil is dug up. Since such things are exposed on the ground, they are forced to be removed separately, resulting in very poor workability.

Republic of Korea Utility Model No. 20-0200074 (Improved plow for tractors) Republic of Korea Registered Patent No. 10-1053758 (Magwa hilling machine with plow)

In order to solve such conventional inconveniences, the present invention simultaneously crushes a mass of soil dug up by a farmer, stirs up the crushed soil, and simultaneously presses the dug up by-product against the ground. Its purpose is to provide a cultivating device with a harrow that has been made available.

The cultivation device having a harrow according to the first embodiment of the present invention for achieving the above object includes a frame having a tractor connecting portion in front so as to be towed by a tractor, and a front portion of the frame. Between the front cultivating part where a plurality of cultivators are arranged in the width direction, the rear cultivating part where a plurality of cultivators are arranged in the width direction in the rear part of the frame, and the front cultivating part and the rear cultivating part. The harrow is provided with a front harrow that crushes the soil dug up by the cultivated portion by being fixed to the frame and rotating.

Further, the cultivating device having the harrow is shaft-mounted so that one side can rotate on both sides of the frame, and the other side is a pair of front supports shafted by a rotating shaft on the outside of the front harrow. It is provided with an arm and a tillage depth adjusting portion fixed to the frame and fixing the vertical rotation angle of the front support arm to adjust the tillage depth of the cultivator.

Further, the front muzzle is provided with a pair of rotating plates pivotally installed so as to rotate on the other side of the pair of front support arms, and a plurality of rod-shaped rotating plates, each of which has both ends of the pair of rotations. A connecting bar that is fixed along the circumference of the plate and connects the pair of rotating plates to each other, and a ring-shaped or disk-shaped connecting bar that is fitted inside or outside the plurality of connecting bars. The connecting bar is fixed around the outside or the inside to support the connecting bar so as not to bend, and a plurality of front support portions arranged at regular intervals are provided.

Furthermore, the plowing depth adjusting portion is arranged in the lateral direction of the frame, and is fitted into a support piece having a large number of pin holes formed in the vertical direction and the pin holes of the support piece to move the support arm upward. And a fixing pin for fixing the lower movement.

Furthermore, the cultivating device having the harrow further includes a crushing blade provided at regular intervals along the circumference of the support portion and arranged so as to project toward the outside of the support portion. The crushing blade is removable from the support portion, 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.

Further, the cultivating device having a harrow according to the second embodiment of the present invention includes a frame having a tractor connecting portion in the front so as to be towed by the tractor, and a plurality of cultivators in the width direction in the front portion of the frame. It is characterized by including a cultivated portion in which a tractor is deployed and a rear harrow that crushes the soil dug up by the cultivated portion by being fixed to the frame and rotating behind the cultivated portion.

Further, the rear muzzle rotates in the pulling direction of the frame at both ends of the support frame, the rear support arm connecting the frame and the support frame, and the support frame located long in the width direction of the frame. A pair of rotating plates that are axially installed so as to be arranged, and a plurality of rotating plates that are arranged in a rod shape, and both ends thereof are fixed along the circumference of the pair of rotating plates while maintaining a constant interval, and the pair of rotating plates are fixed. A connecting bar that connects each other and a ring-shaped or disk-shaped connecting bar are fitted inside or outside the plurality of connecting bars, and the connecting bar is fixed around the outside or inside to bend the connecting bar. It is provided with a support portion that is supported so as not to be present and is provided with a plurality of support portions arranged at regular intervals.

Further, the cultivating device having a harrow according to the third embodiment of the present invention includes a frame having a tractor connecting portion in the front so as to be towed by the tractor, and a plurality of cultivators in the width direction in the front portion of the frame. Is fixed to the frame and rotates between the front cultivated portion in which the harrow is deployed, the rear cultivated portion in which a plurality of cultivators are deployed in the width direction at the rear portion of the frame, and the front cultivated portion and the rear cultivated portion. A front harrow that crushes the soil dug up by the cultivated part by doing so, and a rear harrow that crushes the soil dug up by the cultivated part by being fixed to the frame and rotating behind the rear cultivated part. It is characterized by having.

Further, sprockets or pulleys are provided on the rotation shafts of the front harrow and the rear harrow, respectively, and a chain or a belt connects the sprockets or the pulleys to transmit the rotational force.

Further, a hydraulic motor is provided on the rotation shafts of the front harrow and the rear harrow so as to apply a rotational force.

According to the present invention having such a configuration, the soil dug up from the front cultivated portion is primarily finely divided by providing the front sword between the front cultivated portion and the rear cultivated portion provided on the frame. Since it is crushed, there is an advantage that the problem that the soil dug up from the front cultivated part accumulates between the rear cultivated parts is solved.

Further, by adjusting the height of the front harrow, the cultivation depth of the front cultivation portion can be adjusted, so that there is an advantage that the efficiency of the cultivation work can be improved.

In addition, multiple rotating connecting bars with both ends fixed to a pair of rotating plates and a crushing blade crush the soil mass of the land dug up into small pieces, and the rotation of the connecting bars stirs the ground. By the way, straw Alternatively, by-products such as plant roots are also buried in the ground, eliminating the need for a separate scraping machine.

As a result, cultivation, crushing, and smoothing work are performed at the same time, so that not only the workability is very good, but also the structure is very simple, and a separate working machine is required. Since it does not, there is an effect that the cost saving effect can also be achieved.

It is a figure which shows the structure of the cultivating apparatus which has a harrow by this invention. It is a figure which shows the structure of the harrow applied in this invention. It is a figure which shows the structure which attaches a crushing blade to a support part. It is a figure for demonstrating the operation which adjusts the tillage depth of the front tillage part by the tillage depth adjustment part. It is a figure for demonstrating the operation which borders a cultivated part of a cultivated land by a forward harrow. It is a figure which shows the structure which the front harrow and the rear harrow are connected by a chain or a belt and transmit a rotational force. It is a figure which shows the structure which applies the rotational force by providing the hydraulic motor to the front harrow and the rear harrow. It is a figure which shows the structure of another form which applies a rotational force to a muzzle. It is a figure which shows the structure of another form which applies a rotational force to a muzzle. It is a photograph of this invention which applies power to a muzzle. It is a photograph of this invention which applies power to a muzzle. It is a photograph of this invention which applies power to a muzzle. It is a photograph of this invention which applies power to a muzzle.

The above-mentioned objectives, features and merits will be described in detail with reference to the accompanying drawings, whereby a person having ordinary knowledge in the technical field to which the present invention belongs should be able to easily carry out the technical idea of the present invention. Is.

In explaining the present invention, if it is recognized that a specific description of a known technique related to the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted.

As the term used in the present invention, a general term that is widely used at present as much as possible is selected in consideration of the function in the present invention. It depends on the precedents and the emergence of new technologies.

In a specific case, some terms may be arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the column of the description of the invention.

Therefore, the terms used in the present invention should be defined not only based on the names of the terms but also on the meaning of the terms and the contents of the present invention in general.

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 can be transformed into various other embodiments, and the scope of the present invention is not limited to the embodiments detailed below.

The embodiments of the present invention are provided to more fully explain the present invention to those who have ordinary knowledge in the art.

The cultivating device having a harrow according to the first embodiment of the present invention is largely composed of a frame 100, a front cultivated portion 130, a rear cultivated portion 140, and a rear harrow 200.

Here, as the front cultivating section 130 and the rear cultivating section 140, a plow, which is a kind of cultivator, is shown as an example, and the frame 100 may have a form in which only the rear cultivating section 140 is arranged. ..

The frame 100 is connected to the rear of the tractor and towed, and three-point tractor connecting portions 110 and 120 are arranged in the vertical direction in front of the frame 100. A front cultivating portion 130 is provided in which a plurality of cultivators are fixed at intervals in the width direction of the frame 100, and similarly, a plurality of cultivators are spaced apart from each other in the rear portion of the frame 100. A rear cultivated portion 140 fixed in the width direction is provided.

In these front tillage portions 130 and rear tillage portions 140, only one of the cultivation portions 130 or 140 may be provided on the frame 100, or the two cultivation portions 130 and 140 are both of the frame 100. It may be provided at the front and the rear respectively.

A rear muzzle 200 is deployed behind the rear cultivated portion 140, and such a rear muzzle 200 is axially provided on the frame 100 so that one side can be rotated by a hinge 171 and the other side is A cylinder 170 shafted on the support frame 210 so as to be rotatable by a hinge portion 220 is configured to rotate in the vertical direction so as to be lifted from the ground or lowered to the ground.

Further, a pair of rear support arms 150 and 160 are located on both sides of the cylinder 170 so that the rear magwa 200 can be rotated in the vertical direction by the cylinder 170 while being stably supported by the frame 100, and support them rearward. One side of the arms 150 and 160 is pivotally mounted on the frame 100 so as to be rotatable in the vertical direction, and the other side is fixed to the rear muzzle 200.

As shown in FIG. 2, the rear harrow 200 is formed into a cylindrical shape by being rotated and rolled in the towing direction of the tractor by a pair of rear support arms 150 and 160, but is located long in the width direction of the frame 100. A support frame 210 is deployed so that the other side of the cylinder 170 is pivotally installed in the center, and the other sides 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 disk-shaped rotating plates 230 and 240 are pivotally installed on the extended portions by rotating shafts 231 and 241 so as to rotate in the towing direction of the tractor, respectively. A plurality of connecting bars 250 are located between the pair of rotating plates 230 and 240 to connect the rotating plates 230 and 240 to each other.

That is, by fixing both ends of the plurality of rod-shaped connecting bars 250 along the circumferences of the rotating plates 230 and 240 at regular intervals, the rotating plates 230 and 240 separated from each other at both ends of the support frame 210 can be provided. They are connected to each other and can be rolled by pulling the tractor.

At this time, both ends of the plurality of connecting bars 250 are not horizontally fixed at the same positions of the rotating plates 230 and 240, and are connected so as to be slightly inclined downward as they proceed from one direction to the other. It is preferable to be done.

This is to efficiently crush the soil mass cultivated by the front and rear cultivated portions 130 and 140, and to effectively bury by-products such as straw and plant roots in the ground.

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

Further, since the connecting bar 250 has a long rod shape, it may be bent due to resistance of soil lumps or plant roots. Therefore, while maintaining a stable distance between the connecting bars 250, Moreover, in order to prevent bending, a plurality of support portions 260 are arranged at regular intervals.

Such a support portion 260 has a circular ring shape, and may be fitted inside the plurality of connecting bars 250 and the connecting bar 250 may be fixed to the outside thereof, or the support portion 260. The connecting bar 250 may be fitted inside the connecting bar 250 and the connecting bar 250 may be fixed inside the connecting bar 250.

In the drawing, a structure is shown in which a ring-shaped support portion 260 is fitted inside a plurality of connecting bars 250 and a plurality of connecting bars 250 are fixed to the outside thereof. It may have the shape of a ring, and when it is fitted to the outside of the connecting bar 250, it has the shape of a ring.

As shown in FIG. 3, the support portion 260 has a circular ring shape, and the connecting bar 250 is fitted and fixed to a portion to which the connecting bar 250 is touched and fixed on the outside. Grooves 261 are formed at regular intervals, and the connecting bar 250 is fitted into the connecting bar fitting groove 261 and then fixed by welding or the like.

Needless to say, such a support portion 260 may exhibit the shape of a disk as described above.

Further, the crushing blade 270 is fixed to the support portion 260 at regular intervals, but the crushing blade 270 is fixedly fixed between the connecting bar fitting grooves 261 so as to be detachable, and the support portion 270 is fixed. It is provided so as to project in the outward direction of the 260.

This is fixed so as not to interfere with the connecting bars 250, that is, so as to project outward through the distance between the connecting bars 250, and finely crushes the mass of soil dug up by the cultivated portions 130 and 140.

That is, the soil mass can be crushed by the rotation of the connecting bar 250, but the soil mass can be crushed more finely by the crushing blade 270 so that the scraping work can be performed more efficiently.

A fixing hole 262 is formed between the connecting bar fitting grooves 261 for attaching and detaching the crushing blade 270, and a bolt hole 271 is formed in the lower portion of the crushing blade 270, and the bolt hole 271 and the fixing hole are formed. It may have a structure in which the bolt 272 is fitted through the 262 and fastened by the nut 273.

Needless to say, such a detachable structure of the crushing blade 270 can be realized in various ways, and by the way, the structure of the crushing blade 270 may also have various shapes for crushing a mass of soil.

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

Since the cylinder 170 contracts during movement, the rear harrow 200 can be moved in a lifted state, and at the site for cultivation work, the cylinder 170 is extended and lowered so that the rear harrow 200 touches the ground.

At this time, if 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 by the ground, so that the front cultivated portion 130 and the rear cultivated portion 140 Is also lifted to reduce the cultivation depth, that is, the cultivation depth.

On the contrary, when the cylinder 170 is extended so that the rear harrow 200 is close to the ground, the frame 100, the front cultivated portion 130, and the rear cultivated portion 140 are in a state where the rear harrow 200 is not supported by the ground. Due to its own weight, it digs deep into the land and deepens the cultivation depth.

Needless to say, when the front cultivated portion 130 and the rear cultivated portion 140 bite into the land and the frame 100 descends, the rear harrow 200 naturally touches the ground and is supported without the extension of the cylinder 170. The bearing capacity fixes the plowing depth at that position.

In short, the plowing depth of the front plowing portion 130 and the rear plowing portion 140 can be adjusted by adjusting the height of the rear harrow 200 according to the length of extension of the cylinder 170.

Next, when the tractor advances and pulls the frame 100, the front tillage section 130 and the rear cultivation section 140 dig up the land while biting into the ground based on the set tillage depth, and the rear harrow 200 is pulled in the towing direction by the pulling force. The connecting bar 250 and the crushing blade 270 finely crush the mass of soil dug up by the cultivated portions 130 and 140 while performing a rolling motion.

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

Therefore, the ground leveling work is very easily performed by the rotation of the connecting bar 250.

The cultivating device having a harrow according to the second embodiment of the present invention includes a front harrow 300 between the front cultivated portion 130 and the rear cultivated portion 140, and the structure of the front harrow 300 is as follows. It is the same as the structure of the rear harrow 200 of the first embodiment of the present invention.

However, although there is a difference in the structure in which the front harrow 300 is supported by the frame 100 via the plowing depth adjusting portions 310 and 310', the height of the front harrow 300 is increased by the plowing depth adjusting portions 310 and 310'. By adjusting, the plowing depth of the front plowing portion 130 and the rear plowing portion 140 becomes adjustable.

That is, the depth of cultivation of the front cultivated portion 130 and the rear cultivated portion 140 is adjusted by rotating the rear of the frame 100 in the vertical direction around the three-point tractor connecting portions 110 and 120 connected to the tractor. When adjusting the cultivating depth of the rear cultivated portion 140, the cultivated depth of the front cultivated portion 130 is set to be shallower than the cultivated depth of the rear cultivated portion 140. I can't.

Therefore, by adjusting the height of the front harrow 300, the height of the front of the frame 100 is adjusted to adjust the plowing depth of the front cultivated portion 130.

For this purpose, the anterior harrow 300 is fixed to the anterior portion of the frame 100 via the plowing depth adjusting portions 310, 310', but is an extension frame further extending outward from both side portions of the anterior portion of the frame 100. Although 101 and 101'are deployed, these extension frames 101 and 101'are formed so as to project further outward than the front tillage portion 130.

The extension frames 101 and 101'are provided with tillage depth adjusting portions 310 and 310', respectively, but since both sides of the tillage depth adjusting portions 310 and 310'have the same shape, one of the tillage depth adjusting portions 310 can be used. The structure will be described as the center.

In the plowing depth adjusting portion 310, a pair of support pieces 311 and 312 are fixed to each other at intervals so as to line up rearward on the extension frame 101, and a plurality of pin holes are provided in the support pieces 311 and 312 at the same position. 313 and 314 are formed.

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

The front support arm 320 is bent so that its rear portion is inclined downward so as to face the front harrow 300, and its front portion is rotated in the vertical direction by the shaft setting portion 315 between the pair of support pieces 311 and 312. It is installed on the shaft.

Further, the fixing pins 316 and 317 are fitted into the pin holes 313 and 314 so as to fix the rotation of the front support arm 320 in the upper and lower directions, but the two fixing pins 316 and 317 are the front support arm 320. By being fitted into the pin holes 313 and 314 from the upper side and the lower side, respectively, the front support arm 320 is fixed so as not to be caught by the fixing pins 316 and 317 and rotate.

That is, the fixing pins 316 and 317 serve as a stopper that prevents the front support arm 320 from rotating.

A plurality of these pin holes 313 and 314 are formed in the range of the maximum rotation angle of the front support arm 320, and the front support arm 320 is maximized upward at the lower end portion of the pin holes 313 and 314 formed on the uppermost side. When rotated to, the height becomes the same as the upper end portion of the front support arm 320, and the upper end portion of the pin holes 313 and 314 formed on the lowermost side also has the same maximum rotation of the front support arm 320 downward. When this is done, it must be at the same height as the lower end of the front support arm 320.

Further, the distance between the pin holes 313 and 314 is commensurate with the thickness of the front support arm 320.

Both sides of the front harrow 300 are axially provided by the rotation shaft 321 and connected to the front support arm 320 so as to rotate.

Therefore, as shown in FIG. 4, when the front support arm 320 is fixed by adjusting the inclination angle by the pin holes 313, 314 and the fixing pins 316, 317, the front sword 300 is grounded and stretched on the ground G. The grounding force adjusts the degree to which the frame 100 is lifted, and as a result, the depth at which the forward cultivator 130 bites into the land, that is, the cultivating depth.

That is, if the cultivation depth is to be reduced, the inclination angle of the front support arm 320 is increased and the front harrow 300 pushes and lifts the frame 100 to increase the separation distance between the frame 100 and the ground G and increase the distance between the front support arm 320 and the ground G. If you want to adjust the plowing depth of 130 thinly, and conversely, if you want to deepen the plowing depth, the front plaster 130 can land by making the angle of the front support arm 320 gentle and reducing the separation distance between the frame 100 and the ground G. Adjust so that it bites deeply into.

As another form of such a plowing depth adjusting portion 310, a pin hole is formed through the front support arm 320, and one fixing pin is formed in the pin hole 313, 314 and the front support arm 320. It may have a structure that fixes the rotation of the front support arm 320 by penetrating and engaging.

At the same time, the front harrow 300 is located between the front cultivated portion 130 and the rear cultivated portion 140, so that the soil dug up by the front cultivated portion 130 is crushed and handed over to the rear. In the case of a cultivator in which only the front cultivated portion 130 and the rear cultivated portion 140 are deployed without being deployed, a mass of soil dug up from the front cultivated portion 130 is caught by the rear cultivated portion 140 and cannot be smoothly discharged backward. As a result, a phenomenon occurs in which a mass of soil accumulates.

In particular, in cultivated land such as mud, such a mass of soil causes a frequent accumulation phenomenon between the front cultivated portion 130 and the rear cultivated portion 140, making it impossible to easily perform the work.

Therefore, the front harrow 300 of the present invention can be easily discharged to the rear through the space between the rear cultivated portions 140 by finely crushing the soil lumps dug up from the front cultivated portion 130, so that the soil lumps are stagnant. The product phenomenon is eliminated.

On the other hand, when cultivating cultivated land in the form of mud, when the rear cultivated part 140 digs up the land, the soil outside the side part of the part to be cultivated is dug up in the shape of a lump. The surface is dug up very messy.

Therefore, when the front harrow 300 is towed, the rotating plate 322 cuts the land in a straight line while biting into the cultivated land, so that the subsequent rear cultivated portion 140 digs up the land only within the opened range. The periphery of the cultivated land can be cleaned.

Therefore, as shown in FIG. 5, the rotating plate 322 is formed by setting the distance between the outer peripheral surface of the rotating plate 322 of the front harrow 300 and the connecting bar 350 to be the distance D corresponding to the incision depth of the cultivated land. Cut open the cultivated land while rotating.

As a third embodiment of the present invention, there is a structure in which a front harrow 300 is provided between the front cultivated portion 130 and the rear cultivated portion 140, and a rear harrow 200 is provided behind the rear cultivated portion 140. You may.

The structure of the front harrow 300 and the rear harrow 200 is the same as the structure described above.

Therefore, if the front harrow 300 primaryly crushes the soil mass dug up by the front cultivated portion 130 to eliminate the accumulation phenomenon, and the rear harrow 200 secondarily crushes the soil into small pieces. Even the work is done.

On the other hand, as shown in FIG. 6, the front sprocket 300 and the rear sprocket 200 may be connected by a chain 400 or a belt to transmit rotational force to each other, but the front sprocket 300 may be provided. A sprocket 370 or a pulley is connected to the rotary shaft 321 of the sprocket 321 and the rotary shaft 231 of the rear sword 200, respectively, and the sprocket 370s or the pulleys are connected to each other by the chain 400 or the belt to transmit the rotational force, that is, the driving force to each other. do.

That is, if the rotational force of one of the swords is reduced due to an obstacle, the other sword transmits and compensates for the rotational force so that smooth crushing work and towing can be performed.

Further, the gear ratio of the sprocket 370, 280 or the pulley may be different, but in the case of the front harrow 300, the soil is crushed finely with a high rotation, and in the case of the rear harrow 200, the crushing and smoothing work. Therefore, it is preferable to rotate slower than the front harrow 300, so that the gear ratio can be set by changing the diameter of the sprocket 370, 280 or the pulley.

FIG. 7 shows that the first hydraulic motor 371 is fixed to the front support arm 320 of the front muzzle 300 and is axially coupled to the rotating shaft 321 and the second hydraulic motor 371 is fixed to the support frame 210 of the rear muzzle 200. Is fixed and axially coupled to the rotating shaft 231 so that a rotational force is applied to the front muzzle 300 and the rear muzzle 200 by the hydraulic pressure applied from the tractor.

At this time, the first hydraulic motor 371 applies the flood pressure supplied from the tractor via the first hydraulic line 410 to rotate the rotary shaft 321 and discharges the flood pressure to the second hydraulic line 420 again. It has a structure that is applied to the second hydraulic motor 281 via the second hydraulic motor 281 to rotate the rotary shaft 231 and the discharged hydraulic pressure is returned to the tractor via the third hydraulic line 430.

8 and 9 are views showing a structure in which rotational power generated from a tractor is applied to the harrow 300, and a power coupling portion 500 is provided at a front portion of the frame 100. Such a power coupling The portion 500 is provided at a position directly connected to the power shaft of the tractor, that is, the rotary joint.

That is, since the power shaft for transmitting the rotational force generated from the tractor to the outside is usually located at the central portion behind the tractor, the power coupling portion 500 is also at the corresponding position, the frame 100. It is preferably located in the middle part in front of.

Therefore, the connecting shaft 530 provided in the power coupling portion 500 is directly connected to the power shaft of the tractor.

In the power coupling portion 500, a bracket-shaped housing 510 is fixed to the lower side of a central portion in front of the frame 100, a fixed bearing 520 is provided inside the housing 510, and the connecting shaft 530 is the fixed bearing. By being provided so as to penetrate the 520 in the front-rear direction, the front portion and the rear portion of the connecting shaft 530 project in the front-rear direction of the housing 510.

Therefore, the connecting shaft 530 projecting rearward of the housing 510 is connected to the front portion of the power transmission shaft 600 provided toward the rear portion by a universal joint, and the gear box 700 is also connected to the rear portion of the power transmission shaft 600. The power connecting shaft 720 is connected by a universal joint.

The harrow 300 is separated into a left harrow 301 and a right harrow 302, and their outer portions are axially provided on the frame 100. The rotation shafts 321 and 321'are provided by the support arm 320 connected to the frame 100. And the inner part is coupled to the power shafts 730 and 731 arranged on both sides of the gear box 700, respectively.

In the gear box 700, a power connecting shaft 720 is provided at a front portion and is connected to the power transmission shaft 600 by a universal joint, and the power transmitted via the power connecting shaft 720 is switched laterally to the power shaft 730. , 731 is supplied with a rotational force.

Therefore, the left harrow 301 and the right harrow 302 are shaft-mounted on these power shafts 730 and 731 to rotate.

The gear box 700 may be fixed to the frame 100 or a fixed structure connected to the frame 100 by a support arm-shaped fixing portion 710, and the power transmission shaft may be fixed in order to improve the power transmission efficiency with the power transmission shaft 600. It is preferable that the device is provided so as to be inclined upward toward the front so as to be located on a straight line with 600.

That is, since the gear box 700 is located at a position lower than the power shaft of the tractor, the power connecting shaft 720 of the gear box 700 is provided so as to look at the connecting shaft 530 of the power coupling portion 500, so that the power connecting shaft of the gear box 700 can be viewed from the power shaft of the tractor. The power transmission efficiency is greatly increased by converting the angle up to the power connecting shaft 720 of the gear box 700 once.

The gear box 700 is located at the central part of the harrow 300 for one angle conversion, and the left harrow 301 and the right harrow 302 are separated from the central part in the left-right direction and installed on the shaft. Will be done.

Needless to say, if the position of the gearbox 700 is at the same height as the power shaft of the tractor, the power shaft and the power connecting shaft 720 of the gearbox 700 are immediately directly connected to generate power from the tractor. Can be transmitted to the gearbox 700.

Further, the power coupling portion 500 may be removed, and the power transmission shaft 600 may be immediately connected between the power shaft of the tractor and the power connection shaft 720 of the gearbox 700 to transmit power.

On the other hand, in the left harrow 301 and the right harrow 302, as shown in the photographs of FIGS. 10 to 13, a cylindrical body placed in the lateral direction is provided on the shaft between the support arm 320 and the gear box 700. It may have a structure in which crushing blades 270 are provided along the outer circumference at equal intervals in the longitudinal direction thereof.

Although a specific part of the content of the present invention has been described in detail above, such a specific description is merely a suitable embodiment for a person having ordinary knowledge in the art, and thus the scope of the present invention. It should be clearly understandable that is not restricted.

Therefore, it can be said that the substantial scope of the present invention is defined by the claims and their equivalents.

100 Frame 110, 120 Tractor connection part 130 Front cultivation part 140 Rear cultivation part 150, 160 Rear support arm 170 Cylinder 200 Rear gear 210 Support frame 220 Hing part 230, 240 Rotating plate 231, 241 Rotating shaft 250 Connecting bar 260 Supporting part 261 Connecting bar Fitting groove 262 Fixing hole 270 Crushing blade 271 Bolt hole 272 Bolt 273 Nut 280 Sprocket 281 Hydraulic motor 300 Front gear 310 Plowing depth adjustment part 311 312 Support piece 313, 314 Pin hole 315 Shaft installation part 316, 317 Fixing pin 320 Front support arm 321 Rotating shaft 350 Connecting bar 370 Sprocket 371 Hydraulic motor 400 Chain 500 Power coupling part 510 Housing 520 Fixed bearing 530 Connecting shaft 600 Power transmission shaft 700 Gear box 710 Fixed part 720 Power connecting shaft 730, 731

Claims (17)

A frame with a tractor connection in front so that it can be towed by a tractor,
In the front part of the frame, a front cultivating part in which a plurality of cultivators are arranged in the width direction, and a front cultivating part.
In the rear part of the frame, a rear cultivating part in which a plurality of cultivators are arranged in the width direction, and a rear cultivating part.
A harrow that crushes the soil dug up by the cultivated part by being fixed to the frame and rotating between the front cultivated part and the rear cultivated part.
A cultivating device having a harrow, characterized in that it comprises. A frame with a tractor connection in front so that it can be towed by a tractor,
A cultivating part in which a plurality of cultivators are arranged in the width direction in the front part of the frame, and a cultivating part.
A harrow that crushes the soil dug up by the cultivated part by being fixed to the frame and rotating behind the cultivated part.
A cultivating device having a harrow, characterized in that it comprises. A frame with a tractor connection in front so that it can be towed by a tractor,
In the front part of the frame, a front cultivating part in which a plurality of cultivators are arranged in the width direction, and a front cultivating part.
In the rear part of the frame, a rear cultivating part in which a plurality of cultivators are arranged in the width direction, and a rear cultivating part.
A front harrow that crushes the soil dug up by the cultivated part by being fixed to the frame and rotating between the front cultivated part and the rear cultivated part.
A rear harrow that crushes the soil dug up by the cultivated part by being fixed to the frame and rotating behind the rear cultivated part.
A cultivating device having a harrow, characterized in that it comprises. On both sides of the frame, one side is pivotally mounted so that one side is rotatable, and the other side is a pair of front support arms shafted by a rotating shaft outside the harrow or the front harrow.
A tillage depth adjusting unit fixed to the frame and fixing the vertical rotation angle of the front support arm to adjust the tillage depth of the tiller.
The cultivating apparatus having the muzzle according to any one of claims 1 to 3, wherein the cultivating apparatus is provided with. The harrow or the front harrow
A pair of rotating plates shafted so as to rotate on the other side of the pair of front support arms,
A plurality of rod-shaped connecting bars are arranged, and both ends thereof are fixed along the circumference of the pair of rotating plates while maintaining a constant interval to connect the pair of rotating plates.
It has a ring shape or a disk shape and is fitted inside or outside the plurality of connecting bars, and the connecting bar is fixed around the outside or the inside to support the connecting bar so as not to bend, and is constant. With multiple front supports deployed at intervals,
The cultivating apparatus having the muzzle according to any one of claims 1 to 3, wherein the cultivating apparatus is provided with. The rear harrow
A support frame that is long in the width direction of the frame and
A rear support arm that connects the frame and the support frame,
A pair of rotating plates shafted at both ends of the support frame so as to rotate in the traction direction of the frame,
A plurality of rod-shaped connecting bars are arranged, and both ends thereof are fixed along the circumference of the pair of rotating plates while maintaining a constant interval to connect the pair of rotating plates.
It has a ring shape or a disk shape and is fitted inside or outside the plurality of connecting bars, and the connecting bar is fixed around the outside or the inside to support the connecting bar so as not to bend, and is constant. With multiple support units deployed at intervals,
The cultivating apparatus having a muzzle according to claim 3, further comprising. The plowing depth adjusting unit
A support piece deployed in the lateral direction of the frame and having a large number of pin holes formed in the vertical direction,
A fixing pin that is fitted into the pin hole of the support piece to fix the upper movement and the lower movement of the front support arm,
The cultivating apparatus having a muzzle according to claim 4, wherein the cultivating apparatus is provided with. The harrow according to claim 5, further comprising a crushing blade provided along the circumference of the support portion at regular intervals and arranged so as to project in the outward direction of the support portion. Cultivation equipment to have. The cultivating device having a muzzle according to claim 8, wherein the crushing blade is configured to be detachable from the support portion. The cultivating device having a harrow according to claim 8, 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. The rear support arm is rotatably provided from the frame, one side of a cylinder that is expanded and contracted by flood control is rotatably connected to the frame, and the other side of the cylinder is rotatably connected to the support frame. The cultivating device having a harrow according to claim 6. The third aspect of claim 3, wherein sprockets or pulleys are provided on the rotation shafts of the front harrow and the rear harrow, respectively, and a chain or a belt connects the sprockets or the pulleys to each other to transmit the rotational force. Cultivation equipment with a harrow. The cultivating device having a harrow according to claim 3, wherein a hydraulic motor is provided on the rotating shafts of the front harrow and the rear harrow to apply a rotational force. A frame with a tractor connection in front so that it can be towed by a tractor,
A cultivating section in which a plurality of cultivators are arranged in the width direction of the frame, and
A harrow that is located behind the cultivated area and crushes the soil dug up by the cultivated area.
A gear box connected to the harrow shaft,
A power transmission shaft that transmits power by connecting the power shaft of the tractor and the power connection shaft of the gearbox, and
A cultivating device having a harrow, characterized in that it comprises. The harrow is separated into left and right harrows, a gearbox is located between the separated left and right harrows, and the power shaft of the gearbox and the rotation of the left and right harrows. The cultivating device having a harrow according to claim 14, wherein the cultivating apparatus is configured so as to be connected to a shaft. The frame is provided with a power coupling portion that is directly connected to the power shaft of the tractor, and the power coupling portion and the power connecting shaft of the gearbox are configured to be connected by a power transmission shaft. The cultivating apparatus having the gear according to claim 14. The cultivating device having a muzzle according to claim 16, wherein the power transmission shaft is connected by a universal joint.

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