Agricultural machine traction device

Abstract

The utility model relates to a traction structure technical field discloses a traction device for agricultural machinery, including middle board, first mounting plate and second mounting plate, two mutually parallel side plates are fixed to the top and bottom of the front end of middle board, the vertical connection of side plate between has the vertical pole, the outer ring of vertical pole can slide the sleeve of slide cylinder, first mounting plate is located the front end of slide cylinder, and first mounting plate is connected in the front end of slide cylinder through universal joint, first mounting plate surface is equipped with a plurality of first mounting hole, second mounting plate is located the rear end of middle board and with its parallel. The utility model technical scheme is connected between the upper and lower side plates through the setting vertical pole, and the first mounting plate installed on the agricultural machinery of being towed is connected to the slide cylinder of being slidably sleeved on the outer ring of vertical pole through universal joint, makes the agricultural machinery be towed and moves, has the compensation effect on the height of up and down, avoids the agricultural machinery to be subjected to the pulling force to the upper side when passing through the slope or the pit and the depression and leads to the excessive load of the agricultural machinery.

Description

Technical Field

[0001] This utility model relates to the field of traction structure technology, specifically a traction device for agricultural machinery. Background Technology

[0002] Agricultural machinery refers to machinery used for crop planting, livestock production, and primary processing of agricultural products, covering stages such as tillage, sowing, harvesting, and plant protection. Examples include tractors, seeders, and harvesters. The traction device is the key device connecting the tractor and the implement. Common types include fixed traction devices and swing arm traction devices. Fixed traction devices have a simple structure and are connected to the implement through a traction plate, but they have greater steering resistance. Swing arm traction devices achieve lateral swing through a swing arm, making them easy to attach and providing good straight-line driving performance. The design of the traction device directly affects the operating efficiency and stability, and is an important foundation for mechanized agricultural operations.

[0003] However, neither of the above two structures can achieve vertical compensation. In hilly areas, farmland may have slopes or uneven terrain. When agricultural machinery is towed by a traction device, the machinery is easily subjected to an upward tilting force, placing a heavy load on the traction device and potentially lifting the machinery. Therefore, we propose a traction device for agricultural machinery. Utility Model Content

[0004] The purpose of this utility model is to provide a traction device for agricultural machinery. By setting a vertical rod connecting between the upper and lower side plates, a first mounting plate installed on the agricultural machinery being traction is connected to a sliding cylinder that is slidably sleeved on the outer ring of the vertical rod via a universal joint. This allows the agricultural machinery to have a vertical height compensation function when being tractioned, avoiding excessive load caused by upward pulling force when passing over slopes or potholes, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a traction device for agricultural machinery, comprising a middle plate, a first mounting plate, and a second mounting plate. Two parallel side plates are fixed above and below the front end of the middle plate, and a vertical rod is vertically connected between the side plates. A sliding cylinder is slidably fitted onto the outer ring of the vertical rod. The first mounting plate is located at the front end of the sliding cylinder and is connected to the front end of the sliding cylinder via a universal joint. Multiple first mounting holes are provided on the surface of the first mounting plate. The second mounting plate is located at the rear end of the middle plate and parallel to it. Connecting rods are fixed to the four corners of the second mounting plate and connected to the middle plate. Multiple second mounting holes are provided on the surface of the second mounting plate.

[0006] By adopting the above technical solution, the first mounting plate and the second mounting plate are respectively connected and installed on the agricultural machinery and the tractor. When the agricultural machinery is being moved, if it encounters potholes or slopes, the sliding cylinder can play a role in height compensation when it slides up and down on the outer ring of the vertical rod. In conjunction with the rotation angle of the universal joint, it can prevent the agricultural machinery from being subjected to upward pulling force.

[0007] Optionally, the upper outer ring and lower outer ring of the vertical rod are fitted with a first rubber pad and a second rubber pad, and the first rubber pad and the second rubber pad are stacked together alternately and in contact with the upper or lower side plate.

[0008] By adopting the above technical solution, when the slide moves up and down, it will contact the side through the first rubber pad and the second rubber pad, which has a good buffering effect.

[0009] Optionally, the vertical rod passes through the first rubber pad and the second rubber pad via a rod opening located between the first rubber pad and the second rubber pad, and a protrusion is provided on the inner side of the rod opening to abut against the outer surface of the vertical rod.

[0010] By adopting the above technical solution, the protrusion abuts against the outer surface of the vertical rod, which has the function of preventing slippage both up and down.

[0011] Optionally, the surface of the first rubber pad is provided with perforations, and multiple perforations are provided.

[0012] By adopting the above technical solution and using multiple perforations, a better buffering and energy absorption effect is achieved.

[0013] Optionally, the vertical rod is detachably connected between the upper and lower side plates.

[0014] By adopting the above technical solution, when the first and second rubber pads are severely worn, the vertical rod can be removed and replaced.

[0015] Optionally, the two ends of the vertical rod pass through the upper and lower side plates, the bottom of the vertical rod is fixed with a hexagonal block that abuts against the surface of the lower side plate, and the top of the vertical rod is screwed with a nut that abuts against the surface of the upper side plate.

[0016] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0017] 1. The technical solution of this application sets a vertical rod connecting between the upper and lower side plates. The first mounting plate installed on the towed agricultural machinery is connected to the sliding cylinder that is slidably sleeved on the outer ring of the vertical rod through a universal joint. This provides vertical height compensation when the agricultural machinery is towed, and avoids the agricultural machinery being subjected to upward pulling force when passing through slopes or potholes, which would cause excessive load.

[0018] 2. The technical solution of this application has a first rubber pad and a second rubber pad stacked on the upper and lower outer rings of the vertical rod. When the slide cylinder slides up and down, it acts with the stacked first rubber pad and the second rubber pad, which has a buffering effect. The vertical rod can be removed to facilitate the subsequent replacement of the first rubber pad and the second rubber pad. Attached Figure Description

[0019] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the traction device for agricultural machinery according to this utility model;

[0021] Figure 2 This is a schematic diagram of the first rubber pad structure of the traction device for agricultural machinery of this utility model;

[0022] Figure 3 This is a schematic diagram of the vertical rod structure of the traction device for agricultural machinery according to this utility model.

[0023] In the diagram: 1. Middle plate; 11. Side plate; 2. Vertical rod; 21. First rubber pad; 211. Perforation; 22. Second rubber pad; 23. Rod opening; 231. Protrusion; 24. Thread; 25. Nut; 26. Hexagonal block; 3. Sliding cylinder; 31. Universal joint; 4. First mounting plate; 41. First mounting hole; 5. Second mounting plate; 51. Connecting rod; 52. Second mounting hole. Detailed Implementation

[0024] Please see Figure 1-3 This utility model provides a technical solution: a traction device for agricultural machinery, including a middle plate 1, a first mounting plate 4, and a second mounting plate 5. The first mounting plate 4 and the second mounting plate 5 are located at the front end and rear end of the middle plate 1, respectively. The second mounting plate 5 is located at the rear end of the middle plate 1 and is parallel to it. The four corners of the second mounting plate 5 are connected and fixed to the middle plate 1 with connecting rods 51. The surface of the second mounting plate 5 is provided with a plurality of second mounting holes 52. In use, the second mounting plate 5 is installed on the traction end of a tractor or other traction equipment through the second mounting holes 52 and bolts.

[0025] Two parallel side plates 11 are fixed above and below the front end of the middle plate 1, and a vertical rod 2 is vertically connected between the side plates 11. A sliding cylinder 3 is slidably fitted on the outer ring of the vertical rod 2. The sliding cylinder 3 can slide up and down on the outer ring of the vertical rod 2. The first mounting plate 4 is located at the front end of the sliding cylinder 3 and is connected to the front end of the sliding cylinder 3 through a universal joint 31. The surface of the first mounting plate 4 has multiple first mounting holes 41. In use, the first mounting plate 4 is installed on the towed agricultural machinery through the first mounting holes 41 and bolts.

[0026] When agricultural machinery is being towed over a slope or pothole, the slide cylinder 3 can slide up and down a large distance on the outer ring of the vertical rod 2, thus compensating for the vertical height of the agricultural machinery. Under the action of the universal joint 31, the agricultural machinery is allowed to rotate in various directions, ensuring that the agricultural equipment is not subjected to vertical tension and is not lifted.

[0027] Furthermore, the upper and lower outer rings of the vertical rod 2 are fitted with a first rubber pad 21 and a second rubber pad 22. The first rubber pad 21 and the second rubber pad 22 are stacked together in an alternating manner and contact the upper or lower side plate 11. When the sliding cylinder 3 slides up and down a large distance, it will hit the stacked first rubber pad 21 and the second rubber pad 22, thereby playing a buffering role. The surface of the first rubber pad 21 is provided with perforations 211. Multiple perforations 211 are provided to have a better buffering effect.

[0028] In addition, the two ends of the vertical rod 2 pass through the upper and lower side plates 11. The bottom of the vertical rod 2 is fixed with a hexagonal block 26 that abuts against the surface of the lower side plate 11. The upper part of the vertical rod 2 is screwed with a nut 25 that abuts against the surface of the upper side plate 11 through a thread 24, so that the vertical rod 2 is detachably connected between the upper and lower side plates 11. When the first rubber pad 21 and the second rubber pad 22 are severely worn after long-term use, the nut 25 can be unscrewed to remove the vertical rod 2, so that the first rubber pad 21 and the second rubber pad 22 can be easily replaced.

[0029] Both the first rubber pad 21 and the second rubber pad 22 have a rod opening 23 in the middle, so that the vertical rod 2 passes through the rod opening 23 in the middle of the first rubber pad 21 and the second rubber pad 22. The inner side of the rod opening 23 is provided with a protrusion 231 that abuts against the outer surface of the vertical rod 2, which has an anti-slip effect and can prevent the first rubber pad 21 and the second rubber pad 22 above from sliding down.

[0030] In use, the second mounting plate 5 is installed on the tractor or traction machine through the second mounting hole 52 with bolts, while the first mounting plate 4 is installed on the towed agricultural machinery through the first mounting hole 41 with bolts. When the tractor tows the agricultural machinery, and the agricultural machinery is towed over a slope or pothole, the slide cylinder 3 can slide up and down a large distance on the outer ring of the vertical rod 2, thus compensating for the vertical height of the agricultural machinery. Under the action of the universal joint 31, the agricultural machinery is allowed to rotate in various directions, ensuring that the agricultural equipment is not subjected to vertical tension and is not lifted. When the slide cylinder 3 slides up and down a large distance during movement, it will collide with the stacked first rubber pad 21 and second rubber pad 22, thus playing a buffering role. Subsequently, the nut 25 can be unscrewed and the vertical rod 2 can be pulled down to remove it, allowing for the replacement of the severely worn first rubber pad 21 and second rubber pad 22.

Claims

1. A traction device for agricultural machinery, comprising a middle plate (1), a first mounting plate (4), and a second mounting plate (5), characterized in that: Two parallel side plates (11) are fixed above and below the front end of the middle plate (1). A vertical rod (2) is vertically connected between the side plates (11). A slide cylinder (3) is slidably fitted on the outer ring of the vertical rod (2). A first mounting plate (4) is located at the front end of the slide cylinder (3). The first mounting plate (4) is connected to the front end of the slide cylinder (3) through a universal joint (31). A plurality of first mounting holes (41) are opened on the surface of the first mounting plate (4). The second mounting plate (5) is located at the rear end of the middle plate (1) and parallel to it. The four corners of the second mounting plate (5) are connected and fixed with the middle plate (1) by connecting rods (51). The surface of the second mounting plate (5) is provided with multiple second mounting holes (52).

2. The traction device for agricultural machinery according to claim 1, characterized in that: The upper outer ring and the lower outer ring of the vertical rod (2) are fitted with a first rubber pad (21) and a second rubber pad (22). The first rubber pad (21) and the second rubber pad (22) are stacked together in an alternating manner and contact the upper or lower side plate (11).

3. The traction device for agricultural machinery according to claim 2, characterized in that: The vertical rod (2) passes through the rod opening (23) at the middle position of the first rubber pad (21) and the second rubber pad (22), and a protrusion (231) is provided on the inner side of the rod opening (23) to abut against the outer surface of the vertical rod (2).

4. The traction device for agricultural machinery according to claim 2, characterized in that: The surface of the first rubber pad (21) is provided with perforations (211), and multiple perforations (211) are provided.

5. The traction device for agricultural machinery according to claim 2, characterized in that: The vertical rod (2) is detachably connected between the upper and lower side plates (11).

6. The traction device for agricultural machinery according to claim 5, characterized in that: The two ends of the vertical rod (2) pass through the upper and lower side plates (11). The bottom of the vertical rod (2) is fixed with a hexagonal block (26) that abuts against the surface of the lower side plate (11). The top of the vertical rod (2) is screwed with a nut (25) that abuts against the surface of the upper side plate (11) by a thread (24).

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