Hydraulic adjustable traction frame for agricultural machinery
By designing hydraulic adjustment and auxiliary devices, the problem of low adaptability of traditional traction frames has been solved, improving adaptability to agricultural machinery of different heights and facilitating stable connection and towing of traction machines and agricultural machinery.
Patent Information
- Application Number
- CN202520515481.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-24
AI Technical Summary
The mounting rods and fixing blocks of traditional towing frames are fixedly connected to the main body of the towing frame, resulting in a fixed height that cannot adapt to agricultural machinery of different heights, and thus has low adaptability.
Design a hydraulically adjustable traction frame for agricultural machinery. The height of the mounting rod and the fixing block can be adjusted by a hydraulic rod, combined with the cooperation of the hydraulic oil chamber and the piston rod. The height of the mounting rod and the fixing block can be adjusted by auxiliary devices such as clamps and magnetic blocks to limit and fix them, thereby improving adaptability.
This improves the adaptability of the traction frame to agricultural machinery of different heights, facilitates stable connection and towing of the traction machine and agricultural machinery, and enhances the flexibility and stability of its use.
Smart Images

Figure CN223957983U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traction frames, and in particular to a hydraulically adjustable traction frame for agricultural machinery. Background Technology
[0002] A towing frame is typically used for towing or supporting cranes, trailers, or other machinery to help stabilize or tow heavy objects during movement or maintenance.
[0003] When using a towing frame to connect a tractor and agricultural machinery in agricultural production, the mounting column is usually installed on the tractor for fixation, and then fixed to the agricultural machinery with the help of mounting rods and fixing blocks. This connects the tractor and the agricultural machinery, making it easy to move them. However, since the mounting rods and fixing blocks are fixedly connected to the towing frame in the traditional way, their heights are also fixed. Since the fixing positions vary depending on the type of agricultural machinery that needs to be towed and fixed, the traditional towing frame has limitations in use, low adaptability, and is inconvenient to use. Utility Model Content
[0004] The technical problem this utility model aims to solve is that, since the traditional mounting rod and fixing block are fixedly connected to the main body of the traction frame, the height of the mounting rod and fixing block is fixed. However, the fixing position will vary depending on the type of agricultural machinery that needs to be tractioned and fixed. This results in the traditional traction frame having limitations in use, low adaptability, and inconvenience.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a hydraulically adjustable traction frame for agricultural machinery, including a traction frame body, a mounting rod and a fixing block. A mounting column is installed through one end of the traction frame body, and an adjustment device is provided between one end of the traction frame body and the mounting rod. The adjustment device can adjust the height of the mounting rod and the fixing block on the traction frame body by means of a hydraulic rod.
[0006] Preferably, the adjusting device includes a hydraulic rod, with its two ends fixedly installed on one end of the inner wall of the traction frame body and one side of the inner wall of the mounting rod, respectively. A connecting frame is connected through the outer surface of the output rod of the hydraulic rod. A first oil chamber is opened inside one end of the traction frame body, and a second oil chamber is symmetrically opened inside one end of the traction frame body. The inner walls of the first oil chamber and the second oil chamber are connected. Push plates are fixedly installed at both ends of the connecting frame through one side of the traction frame body and into the first oil chamber. A piston rod is connected through one side of the inner wall of the second oil chamber, with one end of the piston rod abutting against one side of the mounting rod. Hydraulic oil is injected into the first and second oil chambers.
[0007] The effects achieved by the aforementioned components are as follows: By setting up the adjustment device, when using the traction frame body to connect the traction machine and agricultural machinery in agricultural production, the mounting column is usually installed on the traction machine for fixation. Then, according to the required height of the connected agricultural machinery, the hydraulic rod is activated to drive the mounting rod and fixing block upwards, thereby driving the connecting frame and push plate upwards inside the first oil chamber, squeezing hydraulic oil into the second oil chamber, pushing the piston rod upwards, and supporting and reinforcing both ends of the mounting rod to prevent it from shaking during use. By adjusting the mounting rod and fixing block, the traction frame body can be adapted to various agricultural machinery with components of different heights, improving the adaptability of the traction frame body and making it easier to use. In this way, the traction machine and agricultural machinery can be connected and easily towed.
[0008] Preferably, a spring is sleeved on the outer surface of the piston rod, and the two ends of the spring are respectively fixedly installed on one side of the piston rod and the inner wall of the second oil chamber.
[0009] The effect achieved by the above components is that, by setting a spring, after the piston rod is compressed, it can assist in resetting when compression is no longer needed, thereby improving the movement stability of the piston rod.
[0010] Preferably, the outer surface of the output rod of the hydraulic rod is symmetrically and fixedly connected with reinforcing rods, and one end of the reinforcing rod is fixedly installed on one side of the mounting rod.
[0011] The effect achieved by the above components is that by setting up reinforcing rods, the connection area between the hydraulic rod output rod and the mounting rod can be increased, making the connection more secure and less prone to breakage or damage.
[0012] Preferably, an auxiliary device is provided between the fixing block and the mounting rod. The auxiliary device includes a locking rod. A U-shaped block is fixedly connected to one side of the mounting rod. First locking holes are provided on both sides of the inner wall of the U-shaped block. A protrusion is fixedly installed on one side of the fixing block. One end of the protrusion is rotatably installed in the inner wall of the U-shaped block. A plurality of second locking holes are provided on one side of the protrusion. The locking rod is inserted into the inner walls of the first locking holes and the second locking holes.
[0013] The effect achieved by the above components is as follows: By setting the auxiliary device, the fixing block can be manually rotated to a certain angle in the inner wall of the U-shaped block by means of the protrusion, according to the installation angle of the fixing block and the agricultural machinery. This facilitates the installation of the fixing block with the agricultural machinery. The fixing block after the angle is adjusted can be limited and fixed by inserting the locking rod into the first locking hole and the second locking hole. This can help the adjustment device improve the usability of the main body of the traction frame.
[0014] Preferably, bearings are fixedly connected to the outer surfaces of both ends of the protrusion, and the outer ring of the bearing is fixedly installed on the inner wall of the U-shaped block.
[0015] The effect achieved by the above components is that by setting bearings, the protrusions can rotate easily, while reducing rotational wear between them, and making them easier to adjust and use.
[0016] Preferably, one end of the lever is fixedly connected to a connecting rope, and one end of the connecting rope is fixedly installed on one side of the U-shaped block.
[0017] The effect achieved by the above components is that by setting a connecting rope, the lever can be limited on the U-shaped block, making it less likely to be lost when it is removed.
[0018] Preferably, a magnet is symmetrically fixed to one side of the U-shaped block, the lever is made of iron, and the magnet and the lever are magnetically attracted to each other.
[0019] The effect achieved by the above components is that, by setting up a magnet, when the lever is inserted into the first and second locking holes and rotated to a certain angle, the magnet will attract and fix it, limiting its position and making it less prone to shaking or loosening.
[0020] The beneficial effects of this utility model are:
[0021] By setting an adjustment device, when using the towing frame to connect the tractor and agricultural machinery in agricultural production, the mounting column is usually installed and fixed on the tractor. Then, according to the required height of the connected agricultural machinery, the hydraulic rod is activated to drive the mounting rod and fixing block upwards. This causes the connecting frame and push plate to move upwards inside the first oil chamber, squeezing hydraulic oil into the second oil chamber, pushing the piston rod upwards, and supporting and reinforcing both ends of the mounting rod to prevent it from shaking during use. By adjusting the mounting rod and fixing block, the towing frame can be adapted to various agricultural machinery with different height components, improving the adaptability of the towing frame and making it easier to use. This allows the tractor and agricultural machinery to be connected and easily towed. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Figure 1 This is a schematic diagram of the structure of this utility model.
[0024] Figure 2 This is a three-dimensional structural diagram of the main body of the traction frame of this utility model;
[0025] Figure 3 for Figure 2 A three-dimensional schematic diagram of a local structure;
[0026] Figure 4This is a three-dimensional structural diagram of the fixing block of this utility model.
[0027] Legend: 1. Traction frame body; 2. Adjustment device; 3. Auxiliary device; 4. Mounting column; 5. Mounting rod; 6. Fixing block; 21. Hydraulic rod; 22. Connecting frame; 23. Push plate; 24. First oil chamber; 25. Second oil chamber; 26. Piston rod; 27. Spring; 28. Reinforcing rod; 31. U-shaped block; 32. First locking hole; 33. Locking rod; 34. Protrusion; 35. Second locking hole; 36. Bearing; 37. Connecting rope; 38. Magnet block. Detailed Implementation
[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] Figure 1-4 The hydraulically adjustable traction frame for agricultural machinery shown includes a traction frame body 1, a mounting rod 5, and a fixing block 6. A mounting column 4 is installed through one end of the traction frame body 1, and an adjustment device 2 is provided between one end of the traction frame body 1 and the mounting rod 5. The adjustment device 2 can adjust the height of the mounting rod 5 and the fixing block 6 on the traction frame body 1 by means of a hydraulic rod 21.
[0031] Figure 2 and Figure 3The adjustment device 2 shown includes a hydraulic rod 21. The two ends of the hydraulic rod 21 are fixedly installed on one end of the inner wall of the traction frame body 1 and one side of the inner wall of the mounting rod 5, respectively. A connecting frame 22 is connected through the outer surface of the output rod of the hydraulic rod 21. A first oil chamber 24 is opened inside one end of the traction frame body 1, and a second oil chamber 25 is symmetrically opened inside one end of the traction frame body 1. The inner wall of the first oil chamber 24 is connected to the inner wall of the second oil chamber 25. Both ends of the connecting frame 22 pass through one side of the traction frame body 1 and extend into the first oil chamber 24, where a push plate 23 is fixedly installed. A piston rod 26 is connected through one side of the inner wall of the second oil chamber 25. One end of the piston rod 26 abuts against one side of the mounting rod 5. The first oil chamber 24 and the second oil chamber 25 are filled with hydraulic oil. When using the towing frame body 1 to connect the tractor and agricultural machinery in agricultural production, the mounting column 4 is usually installed on the tractor for fixation. Then, the height of the connected agricultural machinery can be fixed as needed. The hydraulic rod 21 is activated to drive the mounting rod 5 and the fixing block 6 upward, which in turn drives the connecting frame 22 and the push plate 23 upward inside the first oil chamber 24, squeezing the hydraulic oil into the second oil chamber 25 and pushing the piston rod 26 upward. This supports and reinforces both ends of the mounting rod 5, making it less prone to shaking during use. By adjusting the mounting rod 5 and the fixing block 6, the towing frame body 1 can be adapted to various agricultural machinery with different height components, improving the adaptability of the towing frame body 1 and making it easier to use. This allows the tractor and agricultural machinery to be connected and easily towed.
[0032] Figure 2 and Figure 3 A spring 27 is fitted onto the outer surface of the piston rod 26, with both ends of the spring 27 fixedly installed on one side of the piston rod 26 and the inner wall of the second oil chamber 25, respectively. By using the spring 27, the piston rod 26 can be repositioned after compression and when compression is no longer needed, thus improving the movement stability of the piston rod 26. Reinforcing rods 28 are symmetrically fixedly connected to the outer surface of the output rod of the hydraulic rod 21, with one end of the reinforcing rod 28 fixedly installed on one side of the mounting rod 5. By using the reinforcing rod 28, the connection area between the output rod of the hydraulic rod 21 and the mounting rod 5 can be increased, making the connection more robust and less prone to breakage.
[0033] Figure 4An auxiliary device 3 is provided between the fixed block 6 and the mounting rod 5. The auxiliary device 3 includes a locking rod 33. A U-shaped block 31 is fixedly connected to one side of the mounting rod 5. First locking holes 32 are provided on both sides of the inner wall of the U-shaped block 31. A protrusion 34 is fixedly installed on one side of the fixed block 6. One end of the protrusion 34 is rotatably installed in the inner wall of the U-shaped block 31. Several second locking holes 35 are provided on one side of the protrusion 34. The locking rod 33 is inserted into the inner walls of the first locking holes 32 and the second locking holes 35. Depending on the installation angle of the fixed block 6 and the agricultural machinery, the fixed block 6 can be manually rotated to a certain angle in the inner wall of the U-shaped block 31 with the help of the protrusion 34 to facilitate installation with the agricultural machinery. The locking rod 33 can be inserted into the first locking holes 32 and the second locking holes 35 to limit and fix the fixed block 6 after the angle is adjusted. This can help the adjustment device 2 improve the usability of the traction frame body 1.
[0034] Figure 4 Bearings 36 are fixedly connected to both ends of the outer surface of the protrusion 34 shown. The outer ring of the bearing 36 is fixedly installed on the inner wall of the U-shaped block 31. By setting the bearings 36, the protrusion 34 can be rotated easily, while reducing rotational wear between the two and facilitating adjustment. A connecting rope 37 is fixedly connected to one end of the locking rod 33, and the other end of the connecting rope 37 is fixedly installed on one side of the U-shaped block 31. By setting the connecting rope 37, the locking rod 33 can be limited on the U-shaped block 31, so that it is not easy to lose it when it is removed. Magnet blocks 38 are symmetrically fixedly connected to one side of the U-shaped block 31. The locking rod 33 is made of iron, and the magnet blocks 38 are magnetically attracted to the locking rod 33. By setting the magnet blocks 38, after the locking rod 33 is inserted into the first locking hole 32 and the second locking hole 35, when it is rotated to a certain angle, the magnet blocks 38 will attract and fix it, limiting its movement and preventing it from shaking or loosening.
[0035] Working principle: When using the towing frame body 1 to connect the towing machine and agricultural machinery in agricultural production, the mounting column 4 is usually installed on the towing machine for fixation. Then, according to the required height of the connected agricultural machinery, the hydraulic rod 21 is activated to drive the mounting rod 5 and the fixing block 6 to move upward. This causes the connecting frame 22 and the push plate 23 to move upward inside the first oil chamber 24, squeezing hydraulic oil into the second oil chamber 25, pushing the piston rod 26 upward, supporting and reinforcing both ends of the mounting rod 5, making it less prone to shaking during use. By adjusting the mounting rod 5 and the fixing block 6, the towing frame body 1 can be adapted to various agricultural machinery with different height components, improving the adaptability of the towing frame body 1 and making it easier to use. This allows the towing machine and agricultural machinery to be connected and easily towed.
[0036] Depending on the installation angle between the fixing block 6 and the agricultural machinery, the fixing block 6 can be manually rotated to a certain angle in the inner wall of the U-shaped block 31 with the help of the protrusion 34, which facilitates installation with the agricultural machinery. The fixing block 6 after the angle has been adjusted can be fixed by inserting the clamping rod 33 into the first clamping hole 32 and the second clamping hole 35. This can help the adjustment device 2 improve the usability of the traction frame body 1.
[0037] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A hydraulically adjustable traction frame for agricultural machinery, comprising a traction frame body (1), a mounting rod (5), and a fixing block (6), characterized in that: One end of the traction frame body (1) is fitted with a mounting column (4). An adjustment device (2) is provided between one end of the traction frame body (1) and the mounting rod (5). The adjustment device (2) can adjust the height of the mounting rod (5) and the fixing block (6) on the traction frame body (1) by means of a hydraulic rod (21). The adjustment device (2) includes a hydraulic rod (21). The two ends of the hydraulic rod (21) are respectively fixedly installed on one end of the inner wall of the traction frame body (1) and one side of the inner wall of the mounting rod (5). A connecting frame (22) is connected through the outer surface of the output rod of the hydraulic rod (21). A first oil chamber (24) is opened inside one end of the traction frame body (1). A second oil chamber (25) is symmetrically opened inside one end of the traction frame body (1). The inner wall of the first oil chamber (24) The connecting frame (22) is connected to the inner wall of the second oil chamber (25). Both ends of the connecting frame (22) pass through one side of the traction frame body (1) and extend into the first oil chamber (24) where a push plate (23) is fixedly installed. A piston rod (26) is connected through one side of the inner wall of the second oil chamber (25). One end of the piston rod (26) abuts against one side of the mounting rod (5). Hydraulic oil is injected into the first oil chamber (24) and the second oil chamber (25). A spring (27) is sleeved on the outer surface of the piston rod (26). Both ends of the spring (27) are fixedly installed on one side of the inner wall of the piston rod (26) and the second oil chamber (25). A reinforcing rod (28) is symmetrically fixedly connected to the outer surface of the output rod of the hydraulic rod (21). One end of the reinforcing rod (28) is fixedly installed on one side of the mounting rod (5).
2. The hydraulically adjustable traction frame for agricultural machinery according to claim 1, characterized in that: An auxiliary device (3) is provided between the fixing block (6) and the mounting rod (5). The auxiliary device (3) includes a locking rod (33). A U-shaped block (31) is fixedly connected to one side of the mounting rod (5). A first locking hole (32) is provided on both sides of the inner wall of the U-shaped block (31). A protrusion (34) is fixedly installed on one side of the fixing block (6). One end of the protrusion (34) is rotatably installed in the inner wall of the U-shaped block (31). A plurality of second locking holes (35) are provided on one side of the protrusion (34). The locking rod (33) is inserted into the inner wall of the first locking hole (32) and the second locking hole (35).
3. The hydraulically adjustable traction frame for agricultural machinery according to claim 2, characterized in that: Bearings (36) are fixedly connected to the outer surfaces of both ends of the protrusion (34), and the outer ring of the bearing (36) is fixedly installed on the inner wall of the U-shaped block (31).
4. The hydraulically adjustable traction frame for agricultural machinery according to claim 3, characterized in that: One end of the lever (33) is fixedly connected to a connecting rope (37), and one end of the connecting rope (37) is fixedly installed on one side of the U-shaped block (31).
5. The hydraulically adjustable traction frame for agricultural machinery according to claim 4, characterized in that: A magnet (38) is symmetrically fixed to one side of the U-shaped block (31), and the clamp (33) is made of iron. The magnet (38) and the clamp (33) are magnetically attracted to each other.