阅读说明：本技术 一种方便操作式农具悬挂牵引装置 (Conveniently-operated agricultural implement suspension traction device ) 是由 蒋秀华 于 2021-08-03 设计创作，主要内容包括：本发明公开了一种方便操作式农具悬挂牵引装置,涉及到农业机械技术领域,包括托架,所述托架的一侧固定连接有一对纵梁,一对所述纵梁之间固定连接有多个横梁,所述横梁上开设有多个安装孔,所述托架上通过螺栓安装有托盘,所述托盘的底部设置于一对支撑板,一对所述支撑板固定连接在所述托架上,所述托盘的顶部开设有多个排水孔。本发明结构合理,通过设置连接防脱部,使得牵引装置与拖拉机安装,且牢固,连接防脱部对牵引装置与拖拉机增加防脱功能,避免应脱开而带来的风险,通过设置缓冲部,拖拉机在瞬间移动或者停止时产生较大的冲击载荷,有效的被衰减,避免了因长时间的冲击导致销轴断裂的风险,提高销轴的使用寿命。(The invention discloses a conveniently operated agricultural implement hanging and traction device, which relates to the technical field of agricultural machinery and comprises a bracket, wherein one side of the bracket is fixedly connected with a pair of longitudinal beams, a plurality of cross beams are fixedly connected between the pair of longitudinal beams, a plurality of mounting holes are formed in the cross beams, a tray is mounted on the bracket through bolts, the bottom of the tray is arranged on a pair of supporting plates, the pair of supporting plates are fixedly connected to the bracket, and a plurality of drainage holes are formed in the top of the tray. The tractor is reasonable in structure, the connection anti-falling part is arranged, so that the traction device and the tractor are installed firmly, the connection anti-falling part has an anti-falling function on the traction device and the tractor, and the risk caused by the disengagement is avoided.)

1. The utility model provides a conveniently operate formula agricultural implement hangs draw gear, includes bracket (1), its characterized in that: a pair of longeron (3) of one side fixedly connected with of bracket (1), it is a pair of a plurality of crossbeams (4) of fixedly connected with between longeron (3), a plurality of mounting holes have been seted up on crossbeam (4), install tray (2) through the bolt on bracket (1), the bottom of tray (2) sets up in a pair of backup pad (12), and is a pair of backup pad (12) fixed connection is in on bracket (1), a plurality of wash ports (30) have been seted up at the top of tray (2), one side of bracket (1) is provided with tractor mounting panel (9), tractor mounting panel (9) with install between bracket (1) and connect anticreep portion and be used for reducing the tractor and open and stop the pair of buffer portion that produces impact load.

2. The conveniently operated agricultural implement suspension and pulling apparatus of claim 1, wherein: connect anticreep portion including the linkage element and the anticreep unit that are connected, linkage element include fixed connection in fixed column (14) of bracket (1) one side, the spacing post of one end fixed connection (22) of fixed column (14), the one end of spacing post (22) is provided with rotates post (18), the rotation spacing groove has been seted up to the one end of rotating post (18), spacing post (22) swing joint in rotate the spacing inslot, first link (19) are installed to the other end of rotating post (18), first link (19) with the top correspondence of tractor mounting panel (9) has seted up first pinhole, it has first fixed pin (7) to peg graft in the first pinhole, the anticreep unit with it is connected to rotate post (18).

3. The conveniently operated agricultural implement suspension and pulling apparatus of claim 2, wherein: the anti-falling unit comprises fixing rods (20) which are fixedly connected to the side wall of the rotating column (18) and symmetrically arranged, one end of each fixing rod (20) is connected with an anti-falling rod (10) through a rotating shaft in a rotating mode, the anti-falling rods (10) are connected with a corresponding fixing pipe (16) and a corresponding threaded pipe (17) in a fixed mode, one end of each fixing pipe (16) and one end of each threaded pipe (17) penetrate through the two sides of the tractor mounting plate (9) respectively, butterfly bolts (15) are arranged at the top ends of the fixing pipes (16), one ends of the butterfly bolts (15) penetrate through the fixing pipes (16) and are in threaded connection with the threaded pipes (17), and limiting guide units are mounted on the fixing pipes (16) and the threaded pipes (17).

4. The conveniently operated agricultural implement suspension and pulling apparatus of claim 3, wherein: spacing direction unit include fixed connection in installation pole (21) on screwed pipe (17) lateral wall, the there is fixedly connected with direction stopper (29) of installation pole (21), fixedly connected with fixed block (28) on the lateral wall of fixed pipe (16), the direction spacing groove has been seted up to the bottom of fixed block (28), direction stopper (29) adaptation in the direction spacing inslot.

5. The conveniently operated agricultural implement suspension and pulling apparatus of claim 3, wherein: the top of tractor mounting panel (9) is seted up and is used for dodging fixed pipe (16) the hole of dodging of screwed pipe (17).

6. The conveniently operated agricultural implement suspension and pulling apparatus of claim 1, wherein: it is a pair of buffering portion includes fixed connection in a pair of U-shaped plate (5) on bracket (1) one side, and is a pair of all rotate on U-shaped plate (5) and be connected with hydraulic telescoping rod (11), and is a pair of the one end of hydraulic telescoping rod (11) all rotates and is connected with pivot (25), and is a pair of the equal fixedly connected with connecting block (26) of one end of pivot (25), it is a pair of all rotate on connecting block (26) and be connected with second link (27), tractor mounting panel (9) and a pair of the second pinhole has all been seted up at the top of second link (27), it has second fixed pin (8) to peg graft in the second pinhole.

7. The conveniently operated agricultural implement suspension and pulling apparatus of claim 6, wherein: the fixed end of hydraulic telescoping rod (11) is gone up and is fixed cup jointed lower fixed ring (23), the flexible end of hydraulic telescoping rod (11) is gone up and is fixed cup jointed upper fixed ring (24), lower fixed ring (23) with be provided with buffer spring (6) between upper fixed ring (24), the both ends of buffer spring (6) respectively with lower fixed ring (23) upper fixed ring (24) laminate mutually.

8. The conveniently operated agricultural implement suspension and pulling apparatus of claim 7, wherein: the buffer spring (6) is a variable stiffness spring, and the middle diameter of the buffer spring (6) is transited from large to small.

9. The conveniently operated agricultural implement suspension and pulling apparatus as defined in any one of claims 2 and 6, wherein: first fixed pin (7) and a pair of equal fixedly connected with stopper on the lateral wall on second fixed pin (8) top, the spacing groove has been seted up at the top of tractor mounting panel (9), the stopper adaptation in the spacing inslot, first fixed pin (7) and a pair of corresponding bolt hole has all been seted up on the bottom lateral wall of second fixed pin (8), and is three the downthehole grafting of bolt has same connecting pin (13), the one end fixedly connected with pull ring of connecting pin (13), connecting pin (13) are interference fit with the bolt hole.

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a conveniently-operated agricultural implement suspension traction device.

Background

The tractor is a self-propelled power machine used for dragging and driving the operation machinery to complete various mobile operations, can also be used as fixed operation power, and consists of an engine, a transmission system, a walking system, a steering system, a hydraulic suspension system, a power output system, an electric instrument system, a driving control system, a dragging system and other systems or devices, wherein the power of the engine is transmitted to a driving wheel by the transmission system to drive the tractor, and in real life, a rubber belt is commonly used as a power transmission medium and is divided into the tractors of agriculture, industry, special use and the like according to functions and purposes; according to the structure types, the tractor is divided into a wheel type tractor, a crawler type tractor, a boat-shaped tractor, a self-propelled chassis and the like, particularly in the aspect of agricultural operation, the tractor is required to be used for agricultural operation, and a trailer and other farming equipment are required to be fixed with the tractor through a traction device so as to realize agricultural farming operation.

Current trailer is connected traction means with the tractor adopts the connecting rod to carry out clearance fit through fixed pin and tractor mounting panel, this cooperation mode, be convenient for installation and dismantlement, but after long-time the use, the fixed pin can be because rock and produce wearing and tearing, cracked risk can take place, and current draw gear does not have the anticreep function of breaking away, must can avoid because of the risk that draw gear breaks away from and bring, drag the machine and can produce great impact load when removing in the twinkling of an eye or stopping, very easily cause the round pin axle fracture, therefore, this application provides a make things convenient for operation formula agricultural implement to hang draw gear and satisfy the demand.

Disclosure of Invention

An object of this application provides a make things convenient for operation formula agricultural implement to hang draw gear, connect anticreep portion through setting up, make draw gear and tractor installation, and firm, connect anticreep portion to draw gear and tractor increase the anticreep function, avoid throwing away the risk that brings, through setting up buffering portion, the tractor produces great impact load when removing or stopping in the twinkling of an eye, effectual quilt attenuates, avoided leading to the cracked risk of round pin axle because of long-time impact, improve the life of round pin axle.

In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a convenient operation formula agricultural implement hangs draw gear, includes the bracket, a pair of longeron of one side fixedly connected with of bracket, it is a pair of a plurality of crossbeams of fixedly connected with between the longeron, a plurality of mounting holes have been seted up on the crossbeam, install the tray through the bolt on the bracket, the bottom of tray sets up in a pair of backup pad, and is a pair of backup pad fixed connection is in on the bracket, a plurality of wash ports have been seted up at the top of tray, one side of bracket is provided with the tractor mounting panel, the tractor mounting panel with install between the bracket and connect anticreep portion and be used for reducing the tractor and open a pair of buffer portion that produces impact load when opening and stop.

Borrow by above-mentioned structure, through setting up the longeron, the mounting hole, make agricultural implement suspension mounting on the longeron, through setting up connection anticreep portion, make draw gear and tractor installation, and firm, connection anticreep portion increases the anticreep function to draw gear and tractor, avoid throwing away the risk that brings, through setting up the buffer portion, the tractor produces great impact load when removing or stopping in the twinkling of an eye, effectual quilt decay, avoided leading to the cracked risk of round pin axle because of long-time impact, the life of round pin axle is improved.

Preferably, connect anticreep portion including the linkage unit and the anticreep unit that are connected, the linkage unit include fixed connection in the fixed column of bracket one side, the spacing post of one end fixed connection of fixed column, the one end of spacing post is provided with rotates the post, the one end of rotating the post has been seted up and has been rotated the spacing groove, spacing post swing joint in rotate spacing inslot, first link is installed to the other end of rotating the post, first link with the top correspondence of tractor mounting panel has been seted up first pinhole, it has first fixed pin to peg graft in the first pinhole, the anticreep unit with it is connected to rotate the post.

Further, through setting up the rotation spacing groove, rotate the post, spacing post, fixed column for the tractor when heeling, spacing post can be at rotation spacing inslot rotation, has reduced the moment of torsion to the fixed column when rotating the post and has twistd reverse, has avoided making the fixed column take place cracked risk because of great moment of torsion, through setting up first fixed pin, first pinhole, the installation and the dismantlement of the first link of being convenient for and tractor mounting panel, convenient operation.

Preferably, the anti-disengaging unit includes fixed connection in the dead lever that the symmetry set up on the rotation post lateral wall, and is a pair of the one end of dead lever is connected with the anti-disengaging pole through the rotation axis rotation respectively, and is a pair of fixed pipe and screwed pipe that fixedly connected with is corresponding on the anti-disengaging pole respectively, the one end of fixed pipe with the one end of screwed pipe runs through respectively the both sides of tractor mounting panel, the top of fixed pipe is provided with butterfly bolt, butterfly bolt's one end runs through fixed pipe, and with screwed pipe threaded connection, fixed pipe with install spacing guide unit on the screwed pipe.

Further, rotate a pair of anticreep pole, make a pair of anticreep pole use a pair of rotation axis to be close to each other as rotation center respectively, make the position of fixed pipe and screwed pipe align, pass fixed pipe with butterfly bolt's one end, and rotate butterfly bolt, make butterfly bolt spiro union in the screwed pipe, the dead lever, the anticreep pole, fixed pipe, butterfly bolt form and seal the annular structure and carry on spacingly to the tractor mounting panel, thereby play the guard action, avoid breaking because of the round pin axle, make draw gear and tractor take place to throw off and bring unnecessary risk.

Preferably, the limiting guide unit comprises a mounting rod fixedly connected to the side wall of the threaded pipe, a guide limiting block is fixedly connected to the other end of the mounting rod, a fixing block is fixedly connected to the side wall of the fixed pipe, a guide limiting groove is formed in the bottom of the fixing block, and the guide limiting block is adapted to the guide limiting groove.

Further, through setting up direction spacing groove, direction stopper, installation pole for when screwed pipe and fixed pipe are close to each other, the direction stopper is from sliding to the direction spacing inslot, thereby realizes that screwed pipe and fixed quick alignment of pipe are spacing, thereby has improved the installation rate.

Preferably, the top of the tractor mounting plate is provided with a avoiding hole for avoiding the fixed pipe and the threaded pipe.

Preferably, it is a pair of buffering portion includes fixed connection in a pair of U-shaped plate on bracket one side, and is a pair of all rotate on the U-shaped plate and be connected with hydraulic telescoping rod, and is a pair of hydraulic telescoping rod's one end is all rotated and is connected with the pivot, and is a pair of the equal fixedly connected with connecting block of one end of pivot, it is a pair of all rotate on the connecting block and be connected with the second link, the tractor mounting panel is with a pair of the second pinhole has all been seted up at the top of second link, it has the second fixed pin to peg graft in the second pinhole.

Through the setting of buffer portion, drag the machine and can produce great impact load when moving or stopping in the twinkling of an eye, and impact load passes through hydraulic telescoping rod, is reduced fast by hydraulic telescoping rod to avoid round pin axle to receive great impact load and the cracked risk of taking place, improved the life of round pin axle.

Preferably, a lower fixing ring is fixedly sleeved on the fixed end of the hydraulic telescopic rod, an upper fixing ring is fixedly sleeved on the telescopic end of the hydraulic telescopic rod, a buffer spring is arranged between the lower fixing ring and the upper fixing ring, and two ends of the buffer spring are respectively attached to the lower fixing ring and the upper fixing ring.

Further, by providing the buffer spring, the buffer spring can perform a smaller action on the impact load, and further perform the attenuation.

Preferably, the buffer spring is a variable stiffness spring, and the middle diameter of the buffer spring is transited from large to small.

Further, the purpose of this arrangement is to vary the stiffness of the damping spring to accommodate different impact loads and to effectively damp the load.

Preferably, first fixed pin and a pair of equal fixedly connected with stopper on the lateral wall on second fixed pin top, the spacing groove has been seted up at the top of tractor mounting panel, the stopper adaptation in the spacing inslot, first fixed pin and a pair of corresponding bolt hole has all been seted up on the bottom lateral wall of second fixed pin, and is three the downthehole grafting of bolt has same connecting pin, the one end fixedly connected with pull ring of connecting pin, the connecting pin is interference fit with the bolt hole.

Further, through setting up spacing groove, stopper, it is spacing with the position of tractor mounting panel to be convenient for first fixed pin and second fixed pin, makes things convenient for the bolt hole on first fixed pin and the second fixed pin to align, and it is downthehole that the connecting pin of being convenient for inserts to be three bolt, has improved the installation rate, and the connecting pin is interference fit with the bolt hole, and the purpose that sets up like this makes the bolt hole play limiting displacement to the connecting pin, avoids the connecting pin to follow the downthehole roll-off of bolt.

In conclusion, the technical effects and advantages of the invention are as follows:

1. the tractor is reasonable in structure, the farm tool is hung and mounted on the longitudinal beam through the longitudinal beam and the mounting hole, the traction device and the tractor are mounted firmly through the connection anti-falling part, the anti-falling function is added to the traction device and the tractor through the connection anti-falling part, risks caused by falling off are avoided, and the tractor generates larger impact load when moving or stopping instantly through the arrangement of the buffer part, is effectively attenuated, avoids the risk of pin shaft breakage caused by long-time impact, and prolongs the service life of the pin shaft;

2. according to the tractor fixing device, the rotation limiting groove, the rotation column, the limiting column and the fixing column are arranged, so that the limiting column can rotate in the rotation limiting groove when the tractor inclines, the torque to the fixing column when the rotation column is twisted is reduced, the risk that the fixing column is broken due to large torque is avoided, the first connecting frame and the tractor mounting plate can be conveniently mounted and dismounted due to the arrangement of the first fixing pin and the first pin hole, and the operation is convenient;

3. according to the tractor, the pair of anti-falling rods are rotated to enable the pair of anti-falling rods to respectively approach to each other by taking the pair of rotating shafts as rotating centers, so that the positions of the fixed pipe and the threaded pipe are aligned, one end of the butterfly bolt penetrates through the fixed pipe and rotates the butterfly bolt to enable the butterfly bolt to be screwed in the threaded pipe, the fixed rod, the anti-falling rods, the fixed pipe and the butterfly bolt form a closed annular structure to limit the tractor mounting plate, so that a protection effect is achieved, unnecessary risks caused by the fact that a traction device is separated from the tractor due to breakage of a pin shaft are avoided, and the guide limiting block and the mounting rod are arranged to enable the guide limiting block to slide into the guide limiting groove when the threaded pipe and the fixed pipe approach to each other, so that the threaded pipe and the fixed pipe are rapidly aligned and limited, and the mounting speed is improved;

4. according to the invention, the towing machine can generate larger impact load when moving or stopping instantly, the impact load passes through the hydraulic telescopic rod and is quickly reduced by the hydraulic telescopic rod, the buffer spring can perform smaller action on the impact load through arrangement of the buffer spring, and further attenuation is performed, so that the risk of breakage of the pin shaft due to larger impact load is avoided, the service life of the pin shaft is prolonged, the buffer spring is a variable-stiffness spring, and the purpose of setting is to change the stiffness of the buffer spring, adapt to different impact loads and effectively attenuate the load;

5. according to the invention, the limiting groove and the limiting block are arranged, so that the first fixing pin and the second fixing pin are convenient to limit the position of the tractor mounting plate, the bolt holes in the first fixing pin and the second fixing pin are convenient to align, the connecting pin is convenient to insert into the three bolt holes, the mounting speed is improved, the connecting pin and the bolt holes are in interference fit, the bolt holes play a limiting role in the connecting pin, and the connecting pin is prevented from sliding out of the bolt holes.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a first perspective of an agricultural implement suspension and traction device that is convenient to operate;

FIG. 2 is a schematic view of a second perspective view of the conveniently operated agricultural implement suspension and traction device;

FIG. 3 is a partially cut-away perspective view of an agricultural implement suspension and towing apparatus that is convenient to operate;

FIG. 4 is a schematic top view of the conveniently operated agricultural implement suspension and towing apparatus;

FIG. 5 is an enlarged perspective view of the connection anti-separation part;

FIG. 6 is a schematic view of a partially cut-away and enlarged structure of the connection anti-separation part;

FIG. 7 is an enlarged perspective view of the buffering part;

fig. 8 is an enlarged schematic view of a portion a in fig. 6.

In the figure: 1. a bracket; 2. a tray; 3. a stringer; 4. a cross beam; 5. a U-shaped plate; 6. a buffer spring; 7. a first fixing pin; 8. a second fixing pin; 9. a tractor mounting plate; 10. an anti-drop rod; 11. a hydraulic telescopic rod; 12. a support plate; 13. a connecting pin; 14. fixing a column; 15. a butterfly bolt; 16. a fixed tube; 17. a threaded pipe; 18. rotating the column; 19. a first connecting frame; 20. fixing the rod; 21. mounting a rod; 22. a limiting column; 23. a lower fixing ring; 24. an upper fixing ring; 25. a rotating shaft; 26. connecting blocks; 27. a second link frame; 28. a fixed block; 29. a guide limiting block; 30. and (4) draining the water.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1-8, a conveniently operated agricultural implement hangs draw gear, including bracket 1, a pair of longerons 3 of one side fixedly connected with of bracket 1, a plurality of crossbeams 4 of fixedly connected with between a pair of longerons 3, a plurality of mounting holes have been seted up on the crossbeam 4, install tray 2 through the bolt on the bracket 1, the bottom of tray 2 sets up in a pair of backup pad 12, a pair of backup pad 12 fixed connection is on bracket 1, a plurality of wash ports 30 have been seted up at the top of tray 2, one side of bracket 1 is provided with tractor mounting panel 9, install between tractor mounting panel 9 and the bracket 1 and be connected anticreep portion and be used for reducing the tractor and open a pair of buffer portion that produces impact load when opening.

Borrow by above-mentioned structure, through setting up longeron 3, the mounting hole, make the agricultural implement suspension mounting on longeron 3, through setting up connection anticreep portion, make draw gear and tractor installation, and firm, connection anticreep portion increases the anticreep function to draw gear and tractor, avoid throwing away the risk that brings, through setting up the buffer portion, the tractor produces great impact load when removing or stopping in the twinkling of an eye, effectual quilt decay, avoided leading to the cracked risk of round pin axle because of long-time impact, the life of round pin axle is improved.

As a preferred embodiment in this embodiment, as shown in fig. 5 and 6, the connection anti-disengaging part includes a connection unit and an anti-disengaging unit connected with each other, the connection unit includes a fixed column 14 fixedly connected to one side of the bracket 1, one end of the fixed column 14 is fixedly connected with a limit post 22, one end of the limit post 22 is provided with a rotation post 18, one end of the rotation post 18 is provided with a rotation limit groove, the limit post 22 is movably connected in the rotation limit groove, the other end of the rotation post 18 is provided with a first connection frame 19, the first connection frame 19 and the top of the tractor mounting plate 9 are correspondingly provided with a first pin hole, a first fixed pin 7 is inserted in the first pin hole, the anti-disengaging unit is connected with the rotation post 18, by providing the rotation limit groove, the rotation post 18, the limit post 22 and the fixed column 14, the limit post 22 can rotate in the rotation limit groove when the tractor is tilted, the torque to the fixed column 14 when the rotation post 18 is twisted is reduced, avoided making fixed column 14 the cracked risk because of great moment of torsion, through setting up first fixed pin 7, first pinhole, the installation and the dismantlement of the first link 19 of being convenient for and tractor mounting panel 9, convenient operation.

In this embodiment, as shown in fig. 5 and 6, the anti-dropping unit includes fixing rods 20 that are fixedly connected to the side walls of the rotating column 18 and symmetrically disposed, one end of each of the pair of fixing rods 20 is rotatably connected to an anti-dropping rod 10 through a rotating shaft, the pair of anti-dropping rods 10 are fixedly connected to a corresponding fixing tube 16 and a corresponding threaded tube 17, one end of each of the fixing tubes 16 and one end of each of the threaded tubes 17 respectively penetrate through two sides of the tractor mounting plate 9, a butterfly bolt 15 is disposed at the top end of each of the fixing tubes 16, one end of each of the butterfly bolts 15 penetrates through the fixing tube 16 and is in threaded connection with the threaded tube 17, a limit guide unit is mounted on each of the fixing tubes 16 and the threaded tubes 17, the pair of anti-dropping rods 10 are rotated to enable the pair of anti-dropping rods 10 to approach each other with the pair of rotating shafts as rotation centers, so that the positions of the fixing tubes 16 and the threaded tubes 17 are aligned, one end of each of the butterfly bolt 15 penetrates through the fixing tube 16, and rotate butterfly bolt 15 for butterfly bolt 15 spiro union is in screwed pipe 17, and dead lever 20, anticreep pole 10, fixed pipe 16, butterfly bolt 15 form and seal the loop configuration and carry on spacingly to tractor mounting panel 9, thereby play the guard action, avoid because of the round pin axle fracture, make draw gear and tractor take place to throw off and bring unnecessary risk.

In this embodiment, as shown in fig. 8, spacing guide unit includes installation pole 21 of fixed connection on screwed pipe 17 lateral wall, the wired end fixedly connected with of installation pole 21 leads stopper 29, fixedly connected with fixed block 28 on the lateral wall of fixed pipe 16, the direction spacing groove has been seted up to the bottom of fixed block 28, direction stopper 29 adaptation is in the direction spacing inslot, through setting up the direction spacing groove, direction stopper 29, installation pole 21, when making screwed pipe 17 and fixed pipe 16 be close to each other, direction stopper 29 is from sliding to the direction spacing inslot, thereby realize screwed pipe 17 and fixed pipe 16's quick alignment and spacing, thereby installation rate has been improved.

In the present embodiment, as shown in fig. 1 and 2, an avoidance hole for avoiding the fixed pipe 16 and the threaded pipe 17 is opened at the top of the tractor mounting plate 9.

As a preferred embodiment in this embodiment, as shown in fig. 7, the pair of buffering parts includes a pair of U-shaped plates 5 fixedly connected to one side of the bracket 1, a hydraulic telescopic rod 11 is rotatably connected to each of the pair of U-shaped plates 5, a rotating shaft 25 is rotatably connected to each of one ends of the pair of hydraulic telescopic rods 11, a connecting block 26 is fixedly connected to each of one ends of the pair of rotating shafts 25, a second connecting frame 27 is rotatably connected to each of the pair of connecting blocks 26, a second pin hole is formed in each of tops of the tractor mounting plate 9 and the pair of second connecting frames 27, a second fixing pin 8 is inserted into the second pin hole, the tractor generates a large impact load when moving instantaneously or stopping, the impact load is rapidly reduced by the hydraulic telescopic rod 11 through the hydraulic telescopic rod 11, thereby avoided the round pin axle to receive great impact load and the risk that takes place the fracture, improved the life of round pin axle.

In this embodiment, as shown in fig. 7, a lower fixing ring 23 is fixedly sleeved on a fixing end of the hydraulic telescopic rod 11, an upper fixing ring 24 is fixedly sleeved on a telescopic end of the hydraulic telescopic rod 11, a buffer spring 6 is arranged between the lower fixing ring 23 and the upper fixing ring 24, two ends of the buffer spring 6 are respectively attached to the lower fixing ring 23 and the upper fixing ring 24, and the buffer spring 6 can perform a smaller effect on the impact load by being provided with the buffer spring 6, so that the impact load is further attenuated.

In the present embodiment, as shown in fig. 7, the buffer spring 6 is a variable stiffness spring, and the middle diameter of the buffer spring 6 is changed from large to small, so that the stiffness of the buffer spring 6 is changed to adapt to different impact loads and effectively attenuate the loads.

In this embodiment, as shown in fig. 1, fig. 2, and fig. 5, the sidewalls of the top ends of the first fixing pin 7 and the pair of second fixing pins 8 are both fixedly connected with a limiting block, the top of the tractor mounting plate 9 is provided with a limiting groove, the limiting block is adapted to the limiting groove, the sidewalls of the bottom ends of the first fixing pin 7 and the pair of second fixing pins 8 are both provided with corresponding pin holes, the same connecting pin 13 is inserted into the three pin holes, one end of the connecting pin 13 is fixedly connected with a pull ring, the connecting pin 13 and the pin holes are in interference fit, by providing the limiting groove and the limiting block, the positions of the first fixing pin 7 and the second fixing pin 8 and the tractor mounting plate 9 are conveniently limited, the pin holes on the first fixing pin 7 and the second fixing pin 8 are conveniently aligned, the connecting pin 13 is conveniently inserted into the three pin holes, the mounting speed is improved, the connecting pin 13 and the pin holes are in interference fit, the purpose of this arrangement is to make the bolt hole play a limiting role for the connecting pin 13, and avoid the connecting pin 13 from sliding out of the bolt hole.

The working principle of the invention is as follows:

during the installation, through first fixed pin 7 and second fixed pin 8, respectively with first link 19, second link 27 is connected with tractor mounting panel 9, thereby realize the installation of draw gear and tractor, and simple to operate, through setting up the spacing groove, the stopper, it is spacing with the position of tractor mounting panel 9 to be convenient for first fixed pin 7 and second fixed pin 8, bolt hole on convenient first fixed pin 7 and the second fixed pin 8 is aligned, it is downthehole to be convenient for connecting pin 13 to insert three bolt, the installation rate has been improved, through setting up longeron 3, the mounting hole, make agricultural implement suspension mounting on longeron 3, through setting up connection anticreep portion, make draw gear and tractor installation, and firm.

The pair of anti-drop rods 10 are rotated to make the pair of anti-drop rods 10 approach each other with the pair of rotation shafts as rotation centers, so that the positions of the fixing tube 16 and the threaded tube 17 are aligned, one end of the butterfly bolt 15 is inserted through the fixing tube 16, and the butterfly bolt 15 is rotated to lead the butterfly bolt 15 to be screwed in the threaded pipe 17, the fixed rod 20, the anti-drop rod 10, the fixed pipe 16 and the butterfly bolt 15 form a closed ring structure to limit the tractor mounting plate 9, thereby playing a protection role, avoiding unnecessary risks caused by the separation of the traction device and the tractor due to the breakage of the pin shaft, by arranging the guide limiting groove, the guide limiting block 29 and the mounting rod 21, when the threaded pipe 17 and the fixed pipe 16 are close to each other, the guide limiting block 29 slides into the guide limiting groove, thereby achieving rapid alignment and spacing of the threaded pipe 17 and the fixed pipe 16, and thus increasing the installation speed.

Dragging the machine and can producing great impact load when removing or stopping in the twinkling of an eye, and impact load passes through hydraulic telescoping rod 11, is reduced by hydraulic telescoping rod 11 fast, through setting up buffer spring 6, buffer spring 6 can carry out less effect to impact load, further attenuates to avoided first fixed pin 7 to receive great impact load and the cracked risk takes place, improved first fixed pin 7's life.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.