Traction device of wheeled tractor

By designing a wheeled tractor traction device including connecting columns, buffer columns, buffer springs, and sliders, the problem of impacting the traction device in existing technologies during braking is solved. And reduce friction through the lubrication system.

CN222387927UActive Publication Date: 2025-01-24SHANDONG BRABUS HEAVY IND CO LTD
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Patent Information

Application Number
CN202421211529.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-30
Publication Date
2025-01-24
Estimated Expiration
2034-05-30

AI Technical Summary

Technical Problem

The traction devices of existing wheeled tractors lack buffering devices, which causes the traction device to be subjected to a greater impact force when the transfer box moves forward under the action of inertia, resulting in deformation and reducing service life.

Method used

A traction device including a connecting column, a buffer column, a buffer spring and a slider is designed. Through the hinge assembly and buffer system, the buffer column slides in the cylindrical groove through the buffer spring, the slider slides in the strip hole, and the buffer column and The combination of the buckle and the rectangular block acts as a buffer.

Benefits of technology

It effectively reduces the impact of the transfer case on the traction device during braking, avoids deformation, increases the service life of the traction device, and reduces friction through the oil storage tank and lubricating oil system to maintain the buffering effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of traction devices, in particular to a traction device of a wheeled tractor, which comprises a first mounting seat and a second mounting seat, a connecting column is mounted on the first mounting seat, a cylindrical groove is arranged at one end of the connecting column far away from the first mounting seat, and a buffer column is slidably mounted in the cylindrical groove through a buffer spring. And strip-shaped holes communicating with the cylindrical groove are symmetrically formed in the surface of the connecting column, sliding blocks are symmetrically and fixedly mounted on the buffer column, the two sliding blocks are slidably mounted in the two strip-shaped holes correspondingly, a U-shaped buckle is fixedly mounted on the second mounting base, and a rectangular block is fixedly mounted at the end, away from the connecting column, of the buffer column. According to the utility model, the connecting column, the buffer column, the buffer spring and the sliding block are matched with one another, so that a buffer effect can be achieved, the impact force of the transfer case on the traction device in the braking process is reduced, deformation is avoided, and the service life of the traction device is effectively prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of traction devices, in particular to a traction device of a wheeled tractor. Background Art

[0002] In farmland operations, wheeled tractors are a very popular means of transportation and have been widely used. The traction device of the tractor is used to connect the transfer case and the frame of the tractor. Most of the connection methods are through a retaining ring and a pin shaft. The retaining ring can be clamped on the pin shaft to complete the limit fixation.

[0003] When the tractor is traveling on the road, the frame pulls the transfer case through the traction device. When the tractor brakes, the frame can stop immediately. However, the transfer case still has a tendency to move forward under the action of inertia. The existing traction device lacks a buffer device. When the transfer case moves forward under the action of inertia, the traction device is subjected to a large impact force, causing it to deform, thereby reducing the service life of the traction device. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: when the transfer case moves forward under the action of inertia, the traction device will be subjected to a large impact force, causing it to deform, thereby reducing the service life of the traction device, and a traction device for a wheeled tractor is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A traction device for a wheeled tractor, comprising a first mounting seat and a second mounting seat, wherein a connecting column is mounted on the first mounting seat via a hinge assembly, a cylindrical groove is provided at one end of the connecting column away from the first mounting seat, a buffer column is slidably mounted in the cylindrical groove via a buffer spring, strip holes are symmetrically provided on the surface of the connecting column and are both connected to the cylindrical groove, sliders are symmetrically fixedly mounted on the buffer column, and two sliders are slidably mounted in two strip holes respectively;

[0007] A U-shaped buckle is fixedly installed on the second mounting seat, a rectangular hole is opened on the surface of the buckle, a rectangular block is fixedly installed on the end of the buffer column away from the connecting column, one end of the rectangular block is inserted into the rectangular hole, and a limiting component is provided on the rectangular block for limiting the separation of the rectangular block and the buckle.

[0008] Preferably, the hinge assembly comprises a fixed block fixedly mounted on the first mounting seat and a rolling ball fixedly mounted on an end of the connecting column away from the buffer column, a spherical groove is formed on the fixed block, and the rolling ball is rolled and embedded in the spherical groove.

[0009] Preferably, installation grooves are provided on the upper and lower surfaces of the rectangular block, and the limit assembly includes two limit plates that are rotatably installed in the two installation grooves through torsion springs and two baffles that are fixedly installed on the upper and lower surfaces of the rectangular block, respectively, and the buckle is located between the baffle and the limit plate.

[0010] Preferably, an oil storage tank is fixedly mounted on the connecting column, the oil storage tank is filled with lubricating oil, an annular groove is provided inside the cylindrical groove of the connecting column, an oil filling port connected to the annular groove is provided on the surface of the connecting column, an oil filling pipe is connected to the oil storage tank, and one end of the oil filling pipe is installed in the oil filling port.

[0011] Preferably, the surface of the oil filling pipe is provided with a socket connected to the interior, a sealing plate is slidably inserted in the socket, spring rods are symmetrically fixedly installed on the sealing plate, two spring rods are fixedly installed on the sealing plate, and the sealing plate is provided with a transmission component for driving itself to move.

[0012] Preferably, the transmission assembly comprises an L-shaped block fixedly mounted on one end of the sealing plate and a friction plate fixedly mounted on the lower end of the L-shaped block, and the lower surface of the friction plate contacts the surface of the buffer column.

[0013] Preferably, a sealing gasket is fixedly installed on the surface of the sealing plate, and the sealing gasket is made of rubber.

[0014] In the utility model, the beneficial effects are:

[0015] When the transfer case continues to move forward due to inertia, the connection column, buffer column, buffer spring and slider cooperate with each other to play a buffering role, reducing the impact force of the transfer case on the traction device during braking and avoiding deformation, thereby effectively improving the service life of the traction device;

[0016] When the friction between the connecting column and the buffer column is large, lubricating oil can be injected between the connecting column and the buffer column through the cooperation of the oil storage tank, oil filling pipe, transmission assembly, sealing plate and spring rod, thereby reducing the friction between them and ensuring the buffering effect of the traction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a traction device of a wheeled tractor proposed by the utility model;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of a rolling ball and a connecting column in a traction device of a wheeled tractor proposed by the utility model;

[0019] Figure 3It is a three-dimensional exploded structural schematic diagram of a second fixing seat, a buckle, a buffer column, a rectangular block and a limiting assembly in a traction device of a wheeled tractor proposed by the utility model;

[0020] Figure 4 for Figure 1 A magnified view of the structure in the middle.

[0021] In the figure: 1 first mounting seat, 2 connecting column, 3 buffer column, 4 slider, 5 buffer spring, 6 buckle, 7 rectangular block, 8 fixed block, 9 rolling ball, 10 limit plate, 11 baffle, 12 annular groove, 13 oil filling pipe, 14 sealing plate, 15 spring rod, 16 L-shaped block, 17 friction plate, 18 second mounting seat, 19 oil storage tank. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-Figure 4 A traction device for a wheeled tractor, comprising a first mounting seat 1 and a second mounting seat 18, a connecting column 2 is mounted on the first mounting seat 1 through a hinge assembly, a cylindrical groove is provided at one end of the connecting column 2 away from the first mounting seat 1, a buffer column 3 is slidably mounted in the cylindrical groove through a buffer spring 5, strip holes are symmetrically provided on the surface of the connecting column 2 and are all connected to the cylindrical groove, sliders 4 are symmetrically fixedly mounted on the buffer column 3, and two sliders 4 are slidably mounted in the two strip holes respectively;

[0024] A U-shaped buckle 6 is fixedly mounted on the second mounting seat 18, a rectangular hole is opened on the surface of the buckle 6, a rectangular block 7 is fixedly mounted on the end of the buffer column 3 away from the connecting column 2, one end of the rectangular block 7 is inserted into the rectangular hole, and a limiting component for limiting the separation of the rectangular block 7 and the buckle 6 is provided on the rectangular block 7;

[0025] The first mounting seat 1 is installed on the vehicle frame, and the second mounting seat 18 is installed on the transfer case. One end of the buffer column 3 is installed by inserting the rectangular block 7 into the rectangular hole opened on the buckle 6, and then limiting the separation of the rectangular block 7 and the buckle 6 through the limit assembly, thereby completing the installation between the buffer column 3 and the second mounting seat 18. The buffer column 3 can slide in the cylindrical groove through two sliders 4. The slider 4 can prevent the buffer column 3 from detaching from the cylindrical groove. When the buffer column 3 moves in the cylindrical groove, it will drive the buffer spring 5 to deform.

[0026] The hinge assembly includes a fixed block 8 fixedly mounted on the first mounting seat 1 and a rolling ball 9 fixedly mounted on the end of the connecting column 2 away from the buffer column 3. The fixed block 8 is provided with a spherical groove, and the rolling ball 9 is rolled and embedded in the spherical groove.

[0027] The connecting column 2 is mounted on the first mounting seat 1 through the rolling ball 9 and the fixing block 8. When deflection occurs between the vehicle frame and the transfer case, the connecting column 2 can drive the rolling ball 9 to rotate in the spherical groove.

[0028] The upper and lower surfaces of the rectangular block 7 are provided with mounting grooves, and the limiting assembly includes two limiting plates 10 respectively rotatably mounted in the two mounting grooves through torsion springs and two baffles 11 respectively fixedly mounted on the upper and lower surfaces of the rectangular block 7, and the buckle 6 is located between the baffle 11 and the limiting plate 10;

[0029] The limit plate 10 can rotate 90° in the installation groove. Under the action of the torsion force of the torsion spring, the limit plate 10 will be in a vertical state. When installing the buffer column 3 and the buckle 6, the rectangular block 7 is inserted into the rectangular hole. During the insertion process, the two limit plates 10 will contact the buckle 6, thereby resisting the limit plate 10. At this time, the limit plate 10 will rotate into the installation groove, so that the rectangular block 7 can be inserted into the rectangular hole. When the rectangular block 7 is fully inserted into the rectangular hole, the two limit plates 10 pass through the rectangular hole and become vertical under the action of the torsion force of the torsion spring. At this time, the two limit plates 10 can prevent the rectangular block 7 from being pulled out of the rectangular hole, and the two baffles 11 can prevent the rectangular block 7 from continuing to be inserted into the rectangular hole. The connection between the buffer column 3 and the second mounting seat 18 is convenient and easy to operate.

[0030] An oil storage tank 19 is fixedly mounted on the connecting column 2, and the oil storage tank 19 is filled with lubricating oil. An annular groove 12 is provided inside the cylindrical groove of the connecting column 2, and an oil filling port connected to the annular groove 12 is provided on the surface of the connecting column 2. An oil filling pipe 13 is connected to the oil storage tank 19, and one end of the oil filling pipe 13 is installed in the oil filling port.

[0031] The lubricating oil in the oil storage tank 19 will enter the oil filling pipe 13 under the action of gravity, and then flow into the annular groove 12. When the buffer column 3 moves in the cylindrical groove, the lubricating oil can be distributed on the buffer column 3, thereby reducing the friction between the buffer column 3 and the connecting column 2.

[0032] The surface of the oil filling pipe 13 is provided with a socket connected to the inside, and a sealing plate 14 is slidably inserted in the socket. Spring rods 15 are symmetrically fixedly installed on the sealing plate 14. Two spring rods 15 are fixedly installed on the sealing plate 14. The sealing plate 14 is provided with a transmission assembly for driving itself to move. The transmission assembly includes an L-shaped block 16 fixedly installed at one end of the sealing plate 14 and a friction plate 17 fixedly installed at the lower end of the L-shaped block 16. The lower surface of the friction plate 17 contacts the surface of the buffer column 3.

[0033] The sealing plate 14 is inserted into the socket under the elastic force of the spring rod 15, thereby blocking the oil filling pipe 13. When there are not many dust impurities on the surface of the buffer column 3, the friction between the buffer column 3 and the friction plate 17 and the connecting column 2 will not be too large, so that relative sliding can occur between them. When there are too many dust impurities on the surface of the buffer column 3, the friction between the friction plate 17 and the buffer column 3 will be too large, and when the friction between the buffer column 3 and the connecting column 2 is too large, it will affect the buffering effect of the traction device.

[0034] When the friction between the friction plate 17 and the buffer column 3 is too large, when the buffer column 3 moves toward the second mounting seat 18, the friction force will drive the L-shaped block 16 and the sealing plate 14 to move, and the spring rod 15 will stretch. At this time, the sealing plate 14 will open the oil filling pipe 13, and the lubricating oil in the oil storage tank 19 will penetrate into the annular groove 12 and fall on the surface of the buffer column 3, thereby lubricating the surface of the buffer column 3. When the friction on the surface of the buffer column 3 decreases, relative sliding occurs between the friction plate 17 and the buffer column 3, so that the sealing plate 14 will be inserted into the socket under the action of the elastic force of the spring rod 15.

[0035] A sealing gasket is fixedly installed on the surface of the sealing plate 14. The sealing gasket is made of rubber material. The sealing gasket can reduce the gap between the sealing plate 14 and the socket to prevent lubricating oil from leaking out.

[0036] In the utility model, when the tractor brakes, the transfer case will drive the second mounting seat 18 to approach the first mounting seat 1 under the action of inertia, and at this time, the buffer column 3 will be driven to move into the cylindrical groove, and the buffer spring 5 will be compressed, which can convert the impact force generated by inertia into the elastic potential energy of the buffer spring 5, thereby playing a buffering role, reducing the impact force of the transfer case on the traction device during braking, avoiding deformation, and effectively improving the service life of the traction device.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A traction device for a wheeled tractor, comprising a first mounting seat (1) and a second mounting seat (18), characterized in that: A connecting column (2) is mounted on the first mounting seat (1) via a hinge assembly, a cylindrical groove is formed at one end of the connecting column (2) away from the first mounting seat (1), a buffer column (3) is slidably mounted in the cylindrical groove via a buffer spring (5), strip holes are symmetrically formed on the surface of the connecting column (2) and are both connected to the cylindrical groove, sliding blocks (4) are symmetrically fixedly mounted on the buffer column (3), and two sliding blocks (4) are slidably mounted in the two strip holes respectively; A U-shaped buckle (6) is fixedly mounted on the second mounting seat (18), a rectangular hole being provided on the surface of the buckle (6), a rectangular block (7) being fixedly mounted on the end of the buffer column (3) away from the connecting column (2), one end of the rectangular block (7) being inserted into the rectangular hole, and a limiting component for limiting the separation of the rectangular block (7) and the buckle (6) being provided on the rectangular block (7).

2. A traction device for a wheeled tractor according to claim 1, characterized in that: The hinge assembly comprises a fixed block (8) fixedly mounted on a first mounting seat (1) and a rolling ball (9) fixedly mounted on an end of a connecting column (2) away from a buffer column (3); a spherical groove is provided on the fixed block (8), and the rolling ball (9) is rolled and embedded in the spherical groove.

3. The traction device of a wheeled tractor according to claim 1, characterized in that: The upper and lower surfaces of the rectangular block (7) are provided with mounting grooves, the limiting assembly comprises two limiting plates (10) which are respectively rotatably mounted in the two mounting grooves via torsion springs, and two baffles (11) which are respectively fixedly mounted on the upper and lower surfaces of the rectangular block (7), the buckle (6) being located between the baffles (11) and the limiting plates (10).

4. The traction device of a wheeled tractor according to claim 1, characterized in that: An oil storage tank (19) is fixedly mounted on the connecting column (2), and the oil storage tank (19) is filled with lubricating oil. An annular groove (12) is provided inside the cylindrical groove of the connecting column (2), and an oil filling port connected to the annular groove (12) is provided on the surface of the connecting column (2). An oil filling pipe (13) is connected to the oil storage tank (19), and one end of the oil filling pipe (13) is mounted in the oil filling port.

5. The traction device of a wheeled tractor according to claim 4, characterized in that: The surface of the oil filling pipe (13) is provided with a socket connected to the interior, a sealing plate (14) is slidably inserted in the socket, spring rods (15) are symmetrically fixedly mounted on the sealing plate (14), two spring rods (15) are fixedly mounted on the sealing plate (14), and a transmission component for driving the sealing plate (14) to move is provided on the sealing plate (14).

6. The traction device of a wheeled tractor according to claim 5, characterized in that: The transmission assembly comprises an L-shaped block (16) fixedly mounted on one end of the sealing plate (14) and a friction plate (17) fixedly mounted on the lower end of the L-shaped block (16), wherein the lower surface of the friction plate (17) contacts the surface of the buffer column (3).

7. The traction device of a wheeled tractor according to claim 5, characterized in that: A sealing gasket is fixedly mounted on the surface of the sealing plate (14), and the sealing gasket is made of rubber.