KR20230148906A - Farm working machinery of center driving type - Google Patents

Abstract

The present invention relates to an agricultural working machine of a central drive type with a reinforcement structure, which is mounted to enable power transmission to an agricultural tractor. The agricultural working machine is equipped with a gearbox in the center that is driven by receiving power from the tractor, A mounting frame is provided on both upper sides of the gearbox, a main shaft rotated by the gearbox is provided on both lower sides of the gearbox, and the main shaft is provided to protrude further outward than the mounting frame.

Description

Farm working machinery of center driving type with reinforced structure

The present invention relates to a central drive type agricultural working machine with a reinforcement structure. More specifically, a gearbox that receives power from an agricultural tractor and drives the working machine is formed in the center of the working machine, while back plates and doors are provided on both sides of the gearbox. It relates to a centrally driven agricultural implement with a reinforcement structure for support.

In general, a Rotavator, one of agricultural work machines, is an agricultural machine used to till the land for sowing or transplanting crops.

In other words, the rotavator is mounted on a farm tractor, an agricultural work vehicle, and rotates a plurality of tillage blades provided on the blade shaft that receive power from the tractor's engine, tilling farmland to an appropriate depth for sowing or transplanting crops. will be.

This rotavator has been proposed in Korea Registered Utility Model No. 20-0492282 (hereinafter referred to as 'prior art document').

The conventional rotavator disclosed in the prior art literature includes a power transmission unit through which the power of the tractor is transmitted in the upper central area, a main body with both ends finished with respective side plates, and two sides installed between the power transmission unit and both side plates. A gear coupling shaft that is rotatably provided with one end connected to the support frame and the power transmission unit and the other end penetrating the left side plate through one support frame, that is, the left support frame, is coupled and fixed to the left end of the gear coupling shaft. A gearbox is composed of a first sprocket wheel that rotates in a fixed state and a second sprocket wheel that is connected to a chain and rotates in a fixed state coupled to a knife shaft.

At this time, a plurality of tillage blades are installed in a coupled and fixed state on the knife axis, and are rotated by the knife axis to till the farmland to an appropriate depth.

In other words, when the power of the tractor is transmitted to the power transmission unit, the power is transmitted to the gear coupling shaft connected to the power transmission unit, causing the gear coupling shaft to rotate within the support frame, and the first sprocket wheel coupled and fixed to the gear coupling shaft As it rotates with the gear coupling shaft, the second sprocket wheel connected to the chain rotates, and as the knife shaft rotates due to the rotation of the second sprocket wheel, a plurality of tillage blades till the farmland.

However, since the conventional rotavator is manufactured with a knife axis of a certain length according to specifications, the rotatorvator towed by an agricultural tractor always plows only a certain width of farmland regardless of the performance of the tractor, so the working width is limited. There is a disadvantage that workability is inefficient compared to the performance of the tractor.

In addition, in order to solve this shortcoming, forcibly removing the knife axis provided in the existing rotator and replacing it with a new knife axis not only requires a lot of work, but also requires a lot of work time, as well as the back panel and door panel to cover the extended knife axis. Installation must also be accompanied, so there is a disadvantage that it is difficult to realize this, and even if installed, the existing rotatorvator cannot firmly support the extended blade axis, back panel, door, etc., making rotary work impossible due to the unstable structure. There is a downside.

Republic of Korea Registered Utility Model No. 20-0492282

Therefore, the present invention was developed to solve the problems of the prior art as described above. A gearbox that receives the power of the agricultural tractor and drives the working machine is constructed in the center of the working machine, and the length of the agricultural working machine is adjusted to both sides of the gearbox. The purpose is to provide a centrally driven agricultural implement that can be expanded and has a reinforcing structure that can firmly support and support this expanded structure.

In order to achieve the above-described object, the central drive type agricultural work machine having a reinforcement structure according to the present invention is an agricultural work machine mounted to enable power transmission to an agricultural tractor, and the agricultural work machine is driven by receiving power from the tractor at its center. An agricultural implement is provided with a gearbox, a mounting frame is provided on both upper sides of the gearbox, a main shaft rotated by the gearbox is provided on both lower sides of the gearbox, and the main shaft protrudes more outward than the mounting frame. It is characterized by

In addition, hollow knife axes for rotary work can be coupled to both main axes in a shape-matched manner and rotated as one piece.

In addition, the knife axis may be provided with a width adjustment means for adjusting the width of the knife axis protruding from the main axis, and a fixing means for fixing the knife axis adjusted by the width control means, and the knife axis that is shape-fitted to the main axis is connected to the main axis and the main axis. It can be provided with more than 40% overlap.

In addition, distance fixing means may be provided to protrude from each of the two main axes and have a lock nut fastened to an end that penetrates the knife axis coupled to the main axis to couple and fix the knife axis to the main axis.

In addition, the mounting frame is provided with a center light plate that protrudes on both sides of the gearbox, and the center light plate can be provided with a side light plate that can expand the area of the back plate to allow entry and exit.

In addition, the side back panel is provided with a sliding frame that is movably coupled to the mounting frame, so that the side back panel can be pulled out to both sides of the center back panel to expand the area of the back panel.

According to the agricultural working machine of the central drive type with the reinforcement structure of the present invention, the agricultural working machine is provided with a gearbox in the center, and the knife axis is expandable on both sides of the gearbox, and the agricultural working machine is capable of firmly supporting the expanded knife axis. By having a reinforced structure, the working area of farmland can be expanded according to the performance of the agricultural tractor, which has the effect of enabling quick and efficient work.

1 is a diagram of a rotavator in a normal state as an example of an agricultural work machine according to the present invention.
Figure 2 is a diagram showing a cover blade mounted on the rotavator of Figure 1.
Figure 3 is a view of the rotavator according to the present invention in an expanded state.
FIG. 4 is a view showing FIG. 3 from another direction.
Figure 5 is an exploded view showing the rotavator of Figure 3.
Figure 6 is a front configuration diagram of the rotavator according to the present invention.
Figure 7 is a side configuration diagram showing a central drive type rotavator according to the present invention.
Figure 8 is an exploded view of the gearbox and mounting box included in the rotavator according to the present invention.
Figure 9 is a diagram showing a shock absorber configured between the rotavator and the mounting box according to the present invention.

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

The terms used in the present invention are terms defined in consideration of the functions in the present invention, and may vary depending on the intention or custom of the user or operator, so the definitions of these terms are defined in accordance with the technical details of the present invention. It should be interpreted as a concept.

In addition, the embodiments of the present invention do not limit the scope of the present invention, but are merely illustrative of the components presented in the claims of the present invention, and are included in the technical idea throughout the specification of the present invention and are included in the claims. This is an embodiment that includes components that can be replaced as equivalents in the components.

Additionally, optional terms in the examples below are used to distinguish one component from another component, and the components are not limited by the terms.

Accordingly, when describing the present invention, detailed descriptions of related known technologies that may unnecessarily obscure the gist of the present invention are omitted.

1 to 9 are diagrams showing a center-driven rotavator and a frame forming a reinforcing structure as an example of an agricultural work tool according to the present invention.

As shown in the drawing, the agricultural implement according to the present invention is connected and mounted to the rear of the agricultural tractor to enable power transmission.

Here, agricultural work machines include harvesters, rotavators, plows, seeders, mowing machines, mulching machines, trailers, balers, and compost spreaders. However, in this embodiment, the rotavator 100 is exemplified as an example of agricultural work machines as shown in the drawing. Let me explain.

In addition, the agricultural work vehicle on which the rotavator 100 is mounted will be described by taking an agricultural tractor as an example.

Meanwhile, the rotavator 100 as described above is provided connected to the detachable part 200 mounted on the rear of the tractor, as shown in FIGS. 1 to 6.

As shown in FIGS. 3 to 6, the rotator 100 is integrally equipped with a gearbox 110 in its central part that is driven by receiving power from the tractor, and the rotor is driven based on the gearbox 110. The baiter 100 is balanced on both left and right sides.

In particular, a mounting frame 113 is provided to protrude on both sides of the upper part of the gearbox 110, and a main shaft 111 rotated by the gearbox 110 protrudes on both sides of the lower part of the gearbox 110. It is well equipped.

In addition, the main shaft 111 as described above protrudes further outward than the mounting frame 113 so that the gearbox 110, the mounting frame 113, and the main shaft 111 form an earthen shape. In this way, the mounting frame 113 and the main axis 111, which form a clay structure, can stably and firmly support the expanded back panel and door panel, which will be described later.

First, the main shaft 111 is provided at the lower part of the gearbox 110 to protrude from both sides of the gearbox 110, and the hollow knife shaft 190 is coupled to both main shafts 111 in a shape-matched manner so that relative rotation is not possible. It is provided on the upper part of the gearbox 110 with a back plate whose length is adjusted according to the length of the knife shaft 190 protruding from the main shaft 111, and the back plate includes a center light plate 150 and a side light plate 160. It is provided.

This hollow knife axis 190 can be slid while coupled to the main axis 111 in a polygonal shape to adjust the width of both knife axes 190 protruding from the main axis 111. For this, the hollow knife axis 190 can be adjusted. The knife axis 190 is provided with a width adjustment means that can adjust the width of the knife axis 190 protruding from the main axis 111, and a fixing means that fixes the knife axis 190 adjusted by the width adjustment means.

At this time, the width adjustment means may be configured as an automated structure using a hydraulic cylinder (not shown) provided inside the hollow knife shaft 190, or may be configured as a manual structure by an operator.

In addition, the fixing means may be composed of a fixing pin (not shown) penetrating the hollow knife axis 190 and the main axis 111. This fixing pin may be provided and used alone, but the computer bolt 116, which will be described later, ) and the lock nut 117 are preferably provided and used because they can minimize the load applied to the fixture due to the load.

That is, at the outer end of the knife axis 190, the lock nut 117 is fastened to the electric bolt 116, and on the inside of the knife axis 190, the fixing pin is fastened with the fixing pin penetrating the knife axis 190 and the main axis 111. As a result, the knife axis 190 can be firmly fixed to the main axis 111.

In addition, the knife shaft 190, which protrudes from the main shaft 111 and is provided to adjust its width as described above, is preferably provided in a state that overlaps the main shaft 111 by more than 40%, and this is used for covering soil or tilling using the knife shaft 190. During the same rotary work, the gap that may occur between the knife axis 190 and the main axis 111 is eliminated, so work can be performed stably.

Therefore, the knife shaft 190 extending from the main shaft 111 as described above has a coupling structure by shape matching with the main shaft 111, and a fixing means using a bolt 116, a lock nut 117, and a fixing pin. Not only is it firmly supported and fixed even in the expanded state, but the central door panel 170, which will be described later, is firmly supported by the main shaft 111 that protrudes longer than the upper mounting frame 113, so that the central door panel 170 and the side door panels 180 ) is pulled out and expanded, the entire expanded door is firmly supported without moving.

Meanwhile, in order to adjust the length of the back board according to the knife axis 190 whose length is adjusted as described above, hollow mounting frames 113 are provided on the upper part of the gear box 110 to protrude on both sides, and the mounting frames 113 A center light plate 150 that covers the main shaft 111 pulled out from the gearbox 110 is coupled and provided.

In addition, side back plates 160 are coupled to both sides of the center back plate 150, and the side back plates 160 are provided with a sliding frame 161 that is coupled to and from the mounting frame 113.

As a result, the side back plate 160 is provided to be extended or retracted from both sides of the center back plate 150 by the sliding frame 161 and the mounting frame 113, so that the length of the rotavator 100 can be varied. This allows you to adjust the working width.

This center light plate 150 can maintain a firmly supported state by being fixedly installed on the mounting frame 113 protruding on both sides of the gearbox 110, and in this state, side light plates ( Even if 160) is pulled out and expanded, the entire extended back plate can remain firmly supported without moving.

In addition, the center back plate 150 and the side back plate 160 are preferably provided with fixing means for fixing the side back plate 160 that goes in and out of the center back plate 150.

Meanwhile, at the rear end of the center light plate 150 as described above, a central door 170 extending toward the ground side is rotatably provided to cover and cover the gearbox 110, and at the rear end of the side light plate 160, it is also provided toward the ground side. The extended side door panel 180 is rotatable.

In particular, the side door panel 180 is provided to be accessible from both sides of the central door panel 170 so that the overall length of the door panel can be adjusted and varied like the center back plate 150 and the side back plate 160 at the top. The length of the side door 180 that enters and exits from the central door 170 can be adjusted by using the same sliding structure as the upper center back panel 150 and the side back panel 160.

The gearbox 110 on the upper part of the mounting frame 113 as described above is provided with a power transmission unit 120 that is connected to the power transmission unit of the detachable part 200 and inputs the power of the tractor, and the power transmission unit 120 Can be coupled to the power transmission part of the detachable part 200 as a dog clutch structure to transmit power.

In addition, as shown in FIG. 7, the power transmission unit 120 is provided with an input shaft 121 to protrude toward the detachable part 200 of the tractor, and a dog clutch is fixed to the front end of the protruding input shaft 121. A first sprocket wheel 124 is connected to the rear end of the input shaft 121 to enable power transmission.

This first sprocket wheel 124 is connected to the second sprocket wheel 112 of the main shaft 111, which will be described later, via a chain 125 to enable power transmission.

In addition, the main shaft 111 is provided at the lower part of the gearbox 110 to protrude on both sides of the gearbox 110. A distance fixing means, that is, an electric bolt 116, is provided to protrude at the outer end of both main shafts 111, and a second sprocket wheel 112 is provided to be fixed to the inner end of the main shaft 111, so that the second sprocket wheel (112) and the main shaft 111 are provided to rotate simultaneously.

As a result, the power of the tractor is input to the input shaft 121 through the power transmission unit 120, and the input power is transmitted to the main shaft ( 111) and output.

The knife axes 190 are coupled to both main axes 111 in a state in which they cannot rotate relative to each other, so that the knife axes 190 on both sides rotate together with the main axes 111 to cultivate farmland.

At this time, the knife axis 190 is formed of a hollow pipe and is fitted to the outside of the main axis 111. The outer surface of the main axis 111 is formed in a polygonal shape, and the inner surface of the knife axis 190 is the main axis 111. ) is formed in a polygonal shape corresponding to the outer surface and is combined to fit the shape, so that the main axis 111 and the knife axis 190 are coupled in a structure in which relative rotation is not possible.

Meanwhile, as described above, the knife shaft 190 provided on the main shaft 111 can be replaced with a knife shaft of a different standard depending on the performance of the tractor. If the performance of the tractor is high output, the length of the rotavator 100 is extended. The working width can be expanded, and if the performance of the tractor is low output, the working width can be reduced by reducing the length of the rotavator 100. As an example, in this embodiment, when the performance of the tractor is high output, a case where a knife shaft 190 with a tillage blade 191 is provided as shown in FIG. 5, and when the performance of the tractor is low output, as shown in FIG. 2 A case in which a knife shaft 190 having a cover blade 192 is provided as shown is illustrated.

Such replacement of the knife axis 190 is implemented through the electric bolt 116, which is a distance fixing means provided on the main axis 111. When the knife axis 190 is fitted and joined to the outside of the main axis 111 in a shape-matched manner, the main axis 111 is connected to the main axis 111. The cutting bolt 116 of (111) is provided to protrude from the outer end of the knife axis 190, and the lock nut 117 is fastened to the cutting bolt 116 protruding from the knife axis 190 to secure the knife axis 190 to the main axis. It is fixed by binding to (111).

At this time, the lock nut 117 is provided with a plurality of nuts that are sequentially fastened to the bolt 116, and can firmly prevent its loosening.

Meanwhile, the gearbox 110 as described above is mounted on and detachable from the detachable portion 200 by the mounting box 130, and the mounting box 130 is hinged to the upper part of the mounting frame 113. do.

This mounting box 130 is hinged to the front and rear hinge parts of the gearbox 110, respectively. The front hinge part of the gearbox 110 is formed at the front end of the input shaft 121, and the gearbox 110 The rear hinge portion is formed at the rear end of the mounting frame 113.

In particular, the front hinge portion of the gearbox 110 includes a hinge bushing 123 coupled to the distal end of the input shaft 121 to enable relative rotation via a bearing 122, and the outer surface of the hinge bushing 123 is described later. The front hinge plate 131 of the mounting box 130 is inserted and hinged.

In addition, the rear hinge portion of the gearbox 110 includes a plurality of hinge plates 114 formed on the upper surface of the rear end of the mounting frame 113, and the hinge plate 114 has a connecting hole 114a of the regular hole forming a triangle. It is provided to be spaced apart. The rear hinge plate 132 of the mounting box 130, which will be described later, is inserted and hinged between the plurality of hinge plates 114.

Therefore, the rotator 100 is rolled so that the left and right sides rotate up and down based on the front and rear hinges of the mounting box 130, which will be described later, fixed to the detachable part 200, and the rotor is moved by rolling. The baiter 100 can always cultivate the farmland in a horizontal state regardless of the flatness of the farmland.

In addition, as the gearbox 110 is provided in the center of the rotavator 100, uncultivated land exists in the farmland below the gearbox 110 to the width of the gearbox 110.

Accordingly, the lower surface of the gearbox 110 is provided with a plow protrusion 115 protruding downward as shown in FIGS. 7 and 8, and the plow protrusion 115 digs uncultivated land corresponding to the width of the gearbox 110. I end up throwing up.

In particular, during the tilling operation of the rotavator 100, the tilling operation of the tilling blade 191 rotated on both sides of the gearbox 110 moves to the lower center of the rotavator 100, that is, the lower part of the gearbox 110. Soil in farmland accumulates, and the plow protrusions 115 disperse the accumulated soil and simultaneously remove weeds in uncultivated land.

Meanwhile, a mounting box 130 is provided in a hinged manner on the upper part of the gearbox 110 as shown in the drawing.

As shown in Figures 7 and 8, this mounting box 130 includes a cover part 130a that covers the upper surface of the gearbox 110, that is, the power transmission part 120, a detachable part 200 of the tractor, and It includes a “∧” shaped extension portion 130b extending downward from one end of the adjacent cover portion 130a.

As shown in FIGS. 1, 3, and 4, the cover portion 130a and the extension portion 130b are provided with a mounting pin 133 ( 134) is provided.

Among these mounting pins, the upper mounting pin 133 is formed to be fixed to the upper surface of the cover part 130a and is coupled to the upper hook of the detachable part 200, and the lower mounting pin 134 is formed at the lower end of both extension parts 130b. It is formed to be fixed to and the lower hook of the detachable part 200 is coupled.

At this time, the upper hook and lower hook coupled to the upper and lower mounting pins 133 and 134 are provided so that their openings face each other and are coupled to the upper and lower mounting pins 133 and 134 to attach to the detachable portion 200. The rotavator 100 can be firmly mounted.

In addition, the cover portion 130a of the mounting box 130 is provided with front and rear hinge portions that are hinged to the front and rear hinge portions of the gearbox 110.

The front hinge portion of the mounting box 130 includes a front hinge plate 131 protruding downward from the front end of the lower surface of the cover portion 130a, and the front hinge plate 131 includes a hinge bushing 123 of the input shaft 121. A through-hole (131a) is formed through which this penetration is coupled.

Accordingly, the hinge bushing 123 coupled through the through hole 131a of the front hinge plate 131 is provided to rotate (rotate) in place on the front hinge plate 131. At this time, the front hinge plate 131 may be provided with a front coupling plate and a rear tube portion. In this case, the front coupling plate is coupled to the outer portion of the bearing interposed between the input shaft 121 and the hinge bushing 123. It can be fixed, and the rear pipe portion can be provided to be inserted into the outer surface of the hinge bushing (123).

In addition, the rear hinge portion of the mounting box 130 includes a rear hinge plate 132 protruding downward from the rear end of the lower surface of the cover portion 130a, and the rear hinge plate 132 has one stop hole 132a and A plurality of long holes 132b are formed in a triangular shape.

In particular, the stop hole 132a is formed in the upper part of the rear hinge plate 132, and the plurality of long holes 132b are formed in the lower part of the rear hinge plate 132, spaced apart from each other along the same line, and are formed to be long up and down.

A coupling pin is coupled to each of the long holes 132b of the rear hinge plate 132, and the coupling pin penetrates the long hole 132b and is formed as a regular hole in the hinge plate 114 of the gearbox 110. It is provided to be penetrated and coupled to 114a). Accordingly, the gearbox 110, that is, the rotator 100, is provided to be rolled up and down by the vertical length of the long hole 132b in the mounting box 130, and the rolled rotavator 100 is always maintained horizontally with respect to the farmland. It becomes possible.

Additionally, a coupling pin is selectively coupled to the stop hole 132a of the rear hinge plate 132. This coupling pin also penetrates the stop hole 132a and is coupled through the upper coupling hole 114a formed as a positive hole in the hinge plate 114 of the gearbox 110, thereby fixing the rotator 100 to the mounting box 130. This blocks rolling. In this way, the tractor can be safely moved in a state where the rolling of the rotavator 100 is blocked.

Meanwhile, between the above-mentioned mounting box 130 and the rotavator 100, a plurality of shock absorbers 140 are provided on both sides to cushion the rolling of the rotavator 100.

As shown in FIG. 9, the shock absorber 140 includes a cylinder body 140a on the inside of which hydraulic pressure acts, and a rod 140b that is provided to be inserted and exited from one end of the cylinder body 140a.

The lower end of the cylinder body 140a is hinged to the lower end of the extension part 130b of the mounting box 130, and the rod 140b that enters and exits from the upper end of the cylinder body 140a has its tip (upper end) of the gearbox. It is hinged to the mounting frame 113 of (110).

Therefore, when both ends of the rotator 100 are rolled up and down in the mounting box 130, the rods 140b on both sides, which roll up and down like the rotator 100, enter and exit each cylinder body 140a, providing cushioning. It works.

Meanwhile, in this embodiment, in constructing the shock absorber 140, the cylinder body 140a is positioned at the bottom and coupled to the bottom of the extension portion 130b of the mounting box 130, and the rod 140b is positioned at the top. A structure coupled to the mounting frame 113 of the gearbox 110 is illustrated, which is to prevent damage to the rod 140b by foreign substances flying upward during tillage work on farmland. It is located at the upper part of 140a), and damage to the rod 140b is prevented, thereby preventing malfunction of the shock absorber 140.

In addition, the rear side of the extension part 130b of the mounting box 130 (the side facing the rotavator 100) blocks foreign substances splashing toward the shock absorber 140 during the tilling operation by the rotavator 100, thereby protecting the rear surface from foreign substances. A guard 141 is provided to protect the shock absorber 140.

At this time, the guard 141 is not only formed as a plate having an area that sufficiently covers the rear of the shock absorber 140, but may also be provided at an angle corresponding to the inclination of the shock absorber 140. In this way, if the guard 141 is provided at an angle corresponding to the shock absorber 140, the area that can cover the shock absorber 140 is secured to the maximum compared to the same area, so the shock absorber 140 can be protected more safely. There will be.

The rotavator 100 of the central drive method according to the present invention as described above receives the power of the tractor through the power transmission unit 1200 coupled to the power transmission unit of the tractor.

As shown in FIG. 7, the power transmitted in this way is input to the input shaft 121 of the power transmission unit 120 formed on the upper part of the gearbox 110, and the input power is connected to the input shaft 121 and the first sprocket wheel ( 124), and the power transmitted to the second sprocket wheel 112 is output through the main shaft 111 provided on both sides of the second sprocket wheel 112.

In this way, the power output to the main axis 111 rotates the main axis 111, and the rotation of the main axis 111 causes the knife axis 190 coupled thereto to rotate, and the tillage blade 191 or the cover blade ( 192), farmland was cultivated.

In particular, such a tillage blade 191 or a soil covering blade 192 can be selectively connected and mounted on the main shaft 111 depending on the performance of the tractor. In the case of a high-output tractor, the tillage blade 191 is used as shown in FIG. 5. ), and in the case of a low-output tractor, the knife shaft 190 with a cover blade 192 is joined to the main shaft 111 by shape fitting as shown in FIG. 2, and then the outer end of the knife shaft 190 Fasten the lock nut 117 to the protruding bolt 116 and secure it.

At this time, when the main shaft 111 is equipped with the knife shaft 190 having a tillage blade 191, the length of both sides becomes longer, so as shown in FIGS. 3 and 4, the center back plate 150 on the upper part of the gearbox 110 When the side back plate 160 is pulled out and unfolded on both sides, and the main axis 111 is provided with a knife axis 190 having a cover blade 192, the length of both sides is relatively short, so as shown in Figure 1, the center back plate 150 ) Insert the side back plate 160 toward the side and fold it.

As a result, it is possible to prevent soil from scattering upward during tillage by adjusting the lengths of the center back plate 150 and the side back plate 160 according to the specifications of the knife shaft 190 provided on the main shaft 111.

Meanwhile, the rotavator 100 as described above is equipped with a gearbox 110 in the center, so it is operated with both left and right sides always maintained horizontal around the gearbox 110, enabling even cultivation of farmland. do.

In addition, the rotator 100 is rolled up and down by the length of the long hole 132b in the mounting box 130, where the gearbox 110 provided therein is attached and fixed to the detachable part 200 of the tractor. Regardless of the flatness of the farmland, it is possible to always till the farmland in a horizontal state.

Although the present invention has been described in detail through specific examples, this is for detailed explanation of the present invention, and the present invention is not limited thereto, and can be understood by those skilled in the art within the technical spirit of the present invention. It is clear that modifications and improvements are possible.

All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

100: Rotator 110: Gearbox
111: main shaft 112: second sprocket wheel
113: Mounting frame 114: Hinge plate
114a: coupling hole 115: plow protrusion
116: computer bolt 117: lock nut
118: bearing 119: lug bar
120: Power transmission unit 121: Input shaft
122: Bearing 123: Hinge Bushing
124: first sprocket wheel 125: chain
130: Mounting box 130a: Cover part
130b: extension 131: front hinge plate
131a: Through hole 132: Rear hinge plate
132a: stop hole 132b: long hole
133,134: Mounting pin 140: Shock absorber
140a: Cylinder body 140b: Rod
141: Guard 150: Center back plate
160: Side back plate 161: Sliding frame
170: central door 180: side door
190: Blade axis 191: Tillage blade
192: cover blade 200: detachable part

Claims (7)

It is an agricultural work machine mounted to transmit power to an agricultural tractor,
The agricultural implement is equipped with a gearbox in the center that is driven by receiving power from the tractor, a mounting frame is provided on both sides of the upper part of the gearbox, and a main shaft rotated by the gearbox is provided on both sides of the lower part of the gearbox. An agricultural work tool in which a hollow knife axis for rotary work, etc., is joined to the main axis and rotated as one piece.
In claim 1,
An agricultural work tool in which the main shaft is provided as a hollow shaft and slides in an overlapping state with the knife shaft, and is provided to protrude further outward than the mounting frame.
In claim 2,
An agricultural work tool including a width adjustment means for controlling the width of the knife axis protruding from the main axis, and a fixing means for fixing the knife axis adjusted by the width adjustment means on the knife axis.
In claim 2,
The knife axis, which is shape-fitted to the main axis, is an agricultural work tool provided with more than 40% overlap with the main axis.
In claim 2,
An agricultural work tool that is provided to protrude from each of the two main axes, and is equipped with a distance fixing means for fastening the knife axis to the main axis by fastening a lock nut to an end that penetrates the knife axis coupled to the main axis.
In claim 2,
An agricultural work tool in which the mounting frame is equipped with a center light plate that protrudes on both sides of the gearbox, and the center light plate is equipped with an accessible side light plate that can expand the area of the back plate.
In claim 6,
An agricultural work tool in which the side backrest is provided with a sliding frame that is movably coupled to the mounting frame, so that the side backplate can be pulled out to both sides of the center backplate to expand the area of the backboard.