Steering outer pull rod assembly

Abstract

The utility model relates to the technical field of automobile ball heads, in particular to a steering outer pull rod assembly which comprises a pull rod assembly, the pull rod assembly comprises a first steering transverse pull rod, a second steering transverse pull rod and a straight pull rod assembly, the left end of the first steering transverse pull rod is connected with a ball head assembly, the ball head assembly comprises a ball seat, a sealing seat, a ball rod and a ball valve, and a rubber strip is arranged in the ball seat. The lower protection plate and the upper protection plate are arranged in the ball seat, so that the lower protection plate and the upper protection plate can protect the ball seat, direct friction between the ball seat and the ball valve can be prevented when the ball valve rotates in the ball seat, and the service life of the ball valve is effectively prolonged; the sleeve and the moving rod which are matched with each other are arranged in the ball seat, so that the moving block corresponds to the cavity when the upper protection plate movably abuts against the pressure plate, lubricating liquid in the support can fall into the ball seat through the oil passing opening and the cavity, and then the lubricating liquid can quickly cool a ball valve in the ball seat.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile ball heads, in particular to a steering outer tie rod assembly. Background Art

[0002] The automobile tie rod is an important connector connecting the two rear wheels of the car. It is used to connect the left and right steering arms to synchronize the two wheels. The left and right joint assemblies of the tie rod are the key to connecting the automobile tie rod with other components and swinging, and are also important components to ensure the safe driving of the car.

[0003] According to the announcement number CN208069794U, a tie rod assembly is disclosed, including a first steering tie rod, a second steering tie rod, and a straight tie rod assembly. The left end of the first steering tie rod is connected to a ball joint assembly. The tie rod can be adjusted by adjusting the tension bolt to adjust the tension ring, so that the relative distance between the first telescopic shaft and the second telescopic shaft can be adjusted within the tension ring, thereby achieving a change in the length of the steering tie rod. The ball joint assembly in the above document separates the ball head and the ball shell by a ball socket, and the limited specifications of the ball socket make it difficult to protect the upper end of the ball head from wear. The ball head generates heat energy when turning in the ball shell, but the above document fails to spray lubricating liquid into the ball shell, which results in the heat energy generated by the friction between the ball head and the ball shell not being cooled, thereby affecting the service life of the ball head. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that heat energy generated by friction between a ball head and a ball seat cannot be cooled, and proposes a steering outer tie rod assembly.

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

[0006] A steering outer tie rod assembly includes a tie rod assembly, which includes a first steering tie rod, a second steering tie rod and a straight tie rod assembly. The left end of the first steering tie rod is connected to a ball head assembly, and the ball head assembly includes a ball seat, a sealing seat, a ball rod, and a ball valve. A rubber strip is provided in the ball seat, and a lower protective plate is provided on the rubber strip for protecting the lower end of the ball valve, and a limit strip 1 corresponding to the ball seat is provided on the lower protective plate. An upper protective plate is provided on the ball rod for protecting the upper end of the ball valve, and a limit strip 2 corresponding to the ball seat is provided on the upper protective plate. The ball seat is provided with circumferentially distributed supports for storing lubricating fluid, and an oil injection assembly for cooling the ball valve is installed on the support.

[0007] Preferably, the upper protective plate and the lower protective plate are hemispherical structures corresponding to the ball valve, and the upper protective plate and the lower protective plate are composite materials.

[0008] Preferably, the oil injection assembly includes a sleeve fixedly mounted on the ball seat and extending into the support, and the sleeve is provided with a cavity connected to the ball seat, a moving rod is slidingly sleeved in the sleeve, and a moving block and a pressure plate that is movably opposed to the upper protective plate are fixedly mounted on the moving rod, a spring corresponding to the moving rod is welded between the pressure plate and the sleeve, and an oil port corresponding to the cavity is provided on the sleeve.

[0009] Preferably, the moving rod is arranged horizontally, the pressure plate and the moving rod extend to a side position outside the sleeve, and the moving block and the moving rod extend to a side position inside the sleeve.

[0010] Preferably, the spring is welded horizontally, and a one-way valve for controlling the flow direction of the lubricating fluid is provided in the cavity.

[0011] Preferably, the oil port is an L-shaped structure, and a sealing ring corresponding to the cavity is provided on the moving block.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. The utility model provides a lower protective plate and an upper protective plate in the ball seat so that the lower protective plate and the upper protective plate can protect the ball seat, thereby preventing direct friction between the ball seat and the ball valve when the ball valve rotates in the ball seat, thereby effectively improving the service life of the ball valve.

[0014] 2. The utility model sets a matching sleeve and moving rod in the ball seat, so that when the upper protective plate and the pressure plate are movably opposed to each other, the moving block corresponds to the cavity, so that the lubricating liquid in the support can fall into the ball seat through the oil port and the cavity, and then the lubricating liquid can quickly cool the ball valve in the ball seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a steering outer tie rod assembly proposed by the present invention;

[0016] Figure 2 This is a cross-sectional view of a ball seat of a steering outer tie rod assembly proposed in the present invention;

[0017] Figure 3 This is a cross-sectional view of a steering outer tie rod assembly proposed by the present invention;

[0018] Figure 4 This is a cross-sectional view of a sleeve of a steering outer tie rod assembly proposed by the present invention.

[0019] In the figure: 1. Ball seat; 2. Sealing seat; 3. Ball rod; 4. Ball valve; 5. Rubber strip; 6. Lower protective plate; 7. Upper protective plate; 8. Support; 9. Sleeve; 10. Cavity; 11. Moving rod; 12. Spring; 13. Pressure plate; 14. Moving block. DETAILED DESCRIPTION

[0020] 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 the embodiments.

[0021] Reference Figure 1-Figure 4 A steering outer tie rod assembly includes a tie rod assembly, which includes a first steering tie rod, a second steering tie rod and a straight tie rod assembly. The left end of the first steering tie rod is connected to a ball joint assembly, which includes a ball seat 1, a sealing seat 2, a ball rod 3, and a ball valve 4.

[0022] A rubber strip 5 is provided inside the ball seat 1, and a lower protective plate 6 is provided on the rubber strip 5 to protect the lower end of the ball valve 4, and a first limit strip corresponding to the ball seat 1 is provided on the lower protective plate 6. An upper protective plate 7 is provided on the ball rod 3 to protect the upper end of the ball valve 4, and a second limit strip corresponding to the ball seat 1 is provided on the upper protective plate 7. By arranging the lower protective plate 6 and the upper protective plate 7 in the ball seat 1, buffer protection is achieved for the ball valve 4 in the ball seat 1.

[0023] The upper protective plate 7 and the lower protective plate 6 are hemispherical structures corresponding to the ball valve 4, and the upper protective plate 7 and the lower protective plate 6 are composite materials. The ball seat 1 is provided with a circumferentially distributed support 8 for storing lubricating fluid. By providing a limit strip 1 between the ball seat 1 and the lower protective plate 6, the limit strip 1 can support the lower protective plate 6. By providing a limit strip 2 between the ball seat 1 and the upper protective plate 7, the limit strip 2 can support the upper protective plate 7. An oil spray assembly for cooling the ball valve 4 is installed on the support 8.

[0024] The oil injection assembly includes a sleeve 9 fixedly mounted on the ball seat 1 and extending into the support 8, and a cavity 10 connected to the ball seat 1 is opened on the sleeve 9, a moving rod 11 is slidably sleeved in the sleeve 9, and a moving block 14 and a pressure plate 13 that is movably opposed to the upper protective plate 7 are fixedly mounted on the moving rod 11, and the sleeve 9 guides the moving rod 11 so that the moving rod 11 can smoothly pull the pressure plate 13 and the moving block 14 when moving. A spring 12 corresponding to the moving rod 11 is welded between the pressure plate 13 and the sleeve 9, and the spring 12 resets the moving block 14. When the pressure plate 13 is in an unloaded state, the spring 12 can drive the moving block 14 back to its initial position. An oil through port corresponding to the cavity 10 is opened on the sleeve 9;

[0025] The moving rod 11 is arranged horizontally, and the pressure plate 13 and the moving rod 11 extend to one side of the sleeve 9. Figure 4As shown, the moving block 14 and the moving rod 11 extend to one side of the sleeve 9, the spring 12 is horizontally welded, and a one-way valve for controlling the flow direction of the lubricating fluid is provided in the cavity 10. The oil port is an L-shaped structure, and a sealing ring corresponding to the cavity 10 is provided on the moving block 14;

[0026] During the steering process, the ball valve 4 squeezes the upper protective plate 7, so that the upper protective plate 7 can squeeze one of the pressure plates 13. When the pressure plate 13 moves, it drives the moving rod 11 and the moving block 14 to slide in the sleeve 9. When the moving block 14 moves, it drives the oil port to correspond to the cavity 10, so that the lubricating fluid in the support 8 can flow into the ball seat 1, thereby cooling the friction heat generated between the ball seat 1 and the ball rod 3, effectively improving the service life of the ball valve 4.

[0027] The functional principle of this utility model can be explained through the following operation modes:

[0028] When the pull rod assembly is in operation, it drives the ball rod 3 and the ball valve 4 to rotate in the ball seat 1;

[0029] When the ball valve 4 rotates in the ball seat 1, the upper protective plate 7 and the lower protective plate 6 can buffer and protect the upper and lower ends of the ball valve 4. When the upper protective plate 7 and the lower protective plate 6 are deformed by force, they squeeze or pull the limit strip 2 or the limit strip 1. The lower protective plate 6 is squeezed by the ball valve 4, which drives the rubber strip 5 to compress.

[0030] The deformation of the upper protective plate 7 after being subjected to force will offset the movement of one of the pressure plates 13, so that the pressure plate 13 drives the moving rod 11 to slide in the sleeve 9. The spring 12 is subjected to force, so that the moving rod 11 drives the moving block 14 and the sealing ring to slide in the sleeve 9. When the moving block 14 moves, the oil port is connected with the cavity 10, so that the lubricating fluid in the support 8 flows through the oil port and the cavity 10 to the ball seat 1, thereby providing heat dissipation protection for the ball valve 4.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steering outer tie rod assembly, comprising a tie rod assembly, wherein the tie rod assembly comprises a first steering tie rod, a second steering tie rod and a straight tie rod assembly, wherein the left end of the first steering tie rod is connected to a ball head assembly, wherein the ball head assembly comprises a ball seat (1), a sealing seat (2), a ball rod (3), and a ball valve (4), wherein: The ball seat (1) is provided with a rubber strip (5), and a lower protective plate (6) is provided on the rubber strip (5) for protecting the lower end of the ball valve (4), and a first limit strip corresponding to the ball seat (1) is provided on the lower protective plate (6); the ball rod (3) is provided with an upper protective plate (7) for protecting the upper end of the ball valve (4), and a second limit strip corresponding to the ball seat (1) is provided on the upper protective plate (7); the ball seat (1) is provided with a circumferentially distributed support (8) for storing lubricating fluid, and an oil injection assembly for cooling the ball valve (4) is installed on the support (8).

2. A steering outer tie rod assembly according to claim 1, characterized in that: The upper protective plate (7) and the lower protective plate (6) are hemispherical structures corresponding to the ball valve (4), and the upper protective plate (7) and the lower protective plate (6) are composite materials.

3. A steering outer tie rod assembly according to claim 1, characterized in that: The oil injection assembly comprises a sleeve (9) fixedly mounted on the ball seat (1) and extending into the support (8), and a cavity (10) connected to the ball seat (1) is provided on the sleeve (9), a moving rod (11) is slidably sleeved in the sleeve (9), and a moving block (14) and a pressure plate (13) movably abutting against the upper protective plate (7) are fixedly mounted on the moving rod (11), a spring (12) corresponding to the moving rod (11) is welded between the pressure plate (13) and the sleeve (9), and an oil passage corresponding to the cavity (10) is provided on the sleeve (9).

4. A steering outer tie rod assembly according to claim 3, characterized in that: The moving rod (11) is arranged horizontally, the pressure plate (13) and the moving rod (11) extend to a side position outside the sleeve (9), and the moving block (14) and the moving rod (11) extend to a side position inside the sleeve (9).

5. A steering outer tie rod assembly according to claim 3, characterized in that: The spring (12) is welded horizontally, and a one-way valve for controlling the flow direction of the lubricating fluid is provided in the cavity (10).

6. A steering outer tie rod assembly according to claim 3, characterized in that: The oil passage is of an L-shaped structure, and a sealing ring corresponding to the cavity (10) is provided on the moving block (14).

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