High-strength joint ball pin assembly

Abstract

The utility model discloses a high-strength joint ball pin assembly, and relates to the technical field of automobile steering systems. A high-strength joint ball pin assembly comprises a base, a ball seat is arranged on the base, a ball body is arranged in the ball seat, a ball pin rod is fixed to the ball body, a dust cover is arranged at the upper end of the ball seat, a threaded groove is formed in the end, extending out of the dust cover, of the ball pin rod, a fixing groove matched with the ball body is formed in the ball seat, and a plurality of first limiting blocks are arranged on the side face of the ball body. A second limiting block is arranged at the lower end of the ball, and a limiting mechanism is arranged between the ball seat and the ball. The abrasion between the ball seat and the ball pin body is compensated through the limiting mechanism, so that the ball seat is attached to the ball pin body, the abrasion and loosening conditions are reduced, and the stability and durability of an automobile are facilitated.

Description

Technical Field

[0001] This application relates to the technical field of automotive steering systems, and particularly to a high-strength knuckle ball joint assembly. Background Art

[0002] The knuckle ball joint assembly of an automotive steering tie rod is a key component in the steering system, used to connect the steering tie rod and the steering knuckle to achieve the steering function. With the development of the automotive industry, the requirements for the strength and durability of the steering system are getting higher and higher.

[0003] An automotive ball joint assembly mentioned in an existing Chinese published patent (authorization publication number: CN219673088U) belongs to the technical field of automotive parts. It includes an upper ball joint. The outer surface of the lower end of the upper ball joint is provided with a lower ball joint. The bottom of the lower ball joint is fixedly connected with a fixed base plate. The outer surface of the upper ball joint is fixedly connected with a protective cover. The outer surface of the lower ball joint is provided with a stretching component; the shape of the protective cover is arc-shaped. The bottom of the protective cover is fixedly connected with an annular connecting plate. The outer surface of the top end of the lower ball joint is in contact with the inner surface of the protective cover. The stretching component includes a cylindrical rod, and connecting blocks are fixedly connected to the front and rear ends of the outer surface of the cylindrical rod. By means of the protective cover, the lower end of the upper ball joint can be protected, and it will not be stressed when the upper ball joint rotates. Depending on the stretching component, it can also change its position following the position of the upper ball joint, improving the protection effect on the upper ball joint and avoiding the problem of deformation and the need for replacement.

[0004] When the ball joint assembly is in use, it is a key part for automotive steering, used to connect the steering tie rod and the steering knuckle to achieve the steering function of the vehicle and improve the stability and durability of the vehicle. However, when the above device is in use, wear is likely to occur between the ball seat and the ball pin body, and loosening is likely to occur, which will easily affect the stability of the vehicle and the durability of the ball pin body, and is not convenient for the use of the ball joint assembly. Summary of the Utility Model

[0005] The purpose of this application is to solve the problem that when the above device is in use, wear is likely to occur between the ball seat and the ball pin body, and loosening is likely to occur, which will easily affect the stability of the vehicle and the durability of the ball pin body, and is not convenient for the use of the ball joint assembly. This application provides a high-strength knuckle ball joint assembly.

[0006] To achieve the above purpose, this application specifically adopts the following technical solutions:

[0007] A high-strength joint ball pin assembly, including a base, a ball seat is arranged on the base, a sphere is arranged in the ball seat, a ball pin rod is fixed on the sphere, a housing dust cover is arranged at the upper end of the ball seat, a threaded groove is opened at one end of the ball pin rod extending out of the dust cover, a fixing groove adapted to the sphere is opened in the ball seat, a plurality of limiting blocks I are arranged on the side surface of the sphere, a limiting block II is arranged at the lower end of the sphere, and a limiting mechanism is arranged between the ball seat and the sphere.

[0008] By adopting the above technical solution, through the limiting mechanism, the wear between the ball seat and the ball pin body is compensated, so that the ball seat and the ball pin body are in fit, reducing the situations of wear and looseness, and facilitating the stability and durability of the vehicle.

[0009] Furthermore, the limiting mechanism includes a limiting column fixed on the side of the limiting block I away from the sphere, a spring is fixed at one end of the limiting column, a plurality of limiting grooves are opened on the inner wall of the ball seat, one end of the limiting column and the spring are both located in the limiting grooves, and a limiting component is arranged between the limiting column and the ball seat.

[0010] By adopting the above technical solution, the elastic force of the spring drives the limiting column to move, and the movement of the limiting column drives the limiting block I to move, so that the limiting block I abuts and fits with the sphere, increasing the contact area and reducing the wear situation.

[0011] Furthermore, the limiting component includes a moving plate fixed at the end of the spring away from the limiting column, the moving plate is slidably arranged with the ball seat, a rotating column is fixedly connected to the side of the moving plate away from the spring, the rotating column is in threaded connection with the ball seat, and a limiting part is arranged between the limiting block II and the base.

[0012] By adopting the above technical solution, by screwing the rotating column, the rotating column rotates in threaded connection with the ball seat, so that the moving plate moves in the limiting groove, compressing the spring, improving the contact force of the limiting block I on the sphere, and facilitating the close fit.

[0013] Furthermore, the limiting part includes a stud rotatably connected to the lower end of the ball seat, the stud is in threaded connection with the base, the stud penetrates through the base, the limiting block II is fixedly connected with the base, the limiting block II extends into the ball seat, and a limiting rod is fixedly connected to the side of the ball seat away from the stud, and the limiting rod slidably penetrates through the base.

[0014] By adopting the above technical solution, by screwing the stud, the base moves closer to the ball seat, driving the limiting block II to abut against the sphere. At the same time, the base slides on the limiting rod to limit the base, reducing the situations of looseness and wear.

[0015] Furthermore, the dust cover is in threaded connection with the ball seat, a plurality of exhaust holes are opened on the dust cover and are arranged in an array, and a filter screen is fixed in the exhaust holes.

[0016] By adopting the above technical solution, through the exhaust holes on the dust cover, the damage to the dust cover caused by the internal and external pressure difference generated by temperature changes is reduced, which is convenient for protection. The exhaust holes are protected by a filter screen to reduce the entry of dust and debris.

[0017] Further, two symmetric lubricating grooves are formed on the side surface of the ball seat. The lubricating grooves are inclined, corresponding to the balls. Sealing blocks are arranged in the lubricating grooves. Connecting lines are fixed on the sealing blocks, and the connecting lines are fixedly connected with the ball seat.

[0018] By adopting the above technical solution, lubricating oil is injected through the inclined oil injection holes to reduce friction and wear. The connecting ropes are convenient for restricting the sealing blocks. When the sealing blocks are reset, it is convenient for the sealing of the ball seat.

[0019] Further, the dust cover is made of polyurethane material, the ball and the ball pin rod are both made of high-strength alloy steel material, and a layer of hard alloy coating is arranged on the surfaces of the ball and the ball pin rod.

[0020] By adopting the above technical solution, the dust cover is made of polyurethane material and can still maintain good sealing performance in harsh environments. A layer of hard alloy coating is arranged on the surfaces of the ball and the ball pin rod, which is realized by physical vapor deposition (PVD) technology. This coating can significantly improve the hardness and wear resistance of the ball pin and extend the service life.

[0021] Further, the first limiting block, the second limiting block and the sealing block are all made of elastic rubber material.

[0022] By adopting the above technical solution, the first limiting block, the second limiting block and the sealing block are all made of elastic rubber material, which improves the wear resistance and sealing performance of the ball pin assembly.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. When the ball pin assembly is in use, the elastic force of the spring drives the limiting column to move. The movement of the limiting column drives the first limiting block to move, so that the first limiting block abuts and fits with the ball, increasing the contact area and reducing wear. Then, by turning the rotating column, the rotating column rotates threadedly with the ball seat, so that the moving plate moves in the limiting groove, compressing the spring, improving the contact force of the first limiting block on the ball, facilitating close fitting. Then, by turning the stud, the base moves closer to the ball seat, driving the second limiting block to abut against the ball. At the same time, the base slides on the limiting rod to limit the base, reducing looseness and wear.

[0025] 2. When the ball pin assembly is in use, through the exhaust holes on the dust cover, the damage to the dust cover caused by the internal and external pressure difference generated by temperature change is reduced, which is convenient for protection. The exhaust holes are protected by a filter screen to reduce the entry of dust and debris. When lubricating oil needs to be added, the sealing block is opened and taken out, and the lubricating oil is injected through the inclined oil injection hole to reduce friction and wear. Brief Description of the Drawings

[0026] Figure 1 is a three-dimensional structural schematic diagram of the ball pin assembly in the present application.

[0027] Figure 2 is a first internal structural schematic diagram of the ball pin assembly in the present application.

[0028] Figure 3 is in the present application Figure 2 is an enlarged structural schematic diagram of part A.

[0029] Figure 4 is a second internal structural schematic diagram of the ball pin assembly in the present application.

[0030] Description of the Reference Numerals:

[0031] 1, base; 2, ball seat; 3, sphere; 4, ball pin rod; 5, dust cover; 6, limiting column; 7, first limiting block; 8, spring; 9, rotating column; 10, moving plate; 11, limiting groove; 12, exhaust hole; 13, filter screen; 14, lubricating groove; 15, sealing block; 16, connecting line; 17, second limiting block; 18, stud; 19, limiting rod. Detailed Description of the Embodiment

[0032] The following further describes the present application in detail Figures 1-4 with reference to the accompanying drawings.

[0033] The embodiment of the present application discloses a high-strength joint ball pin assembly.

[0034] Referring to Figure 1 and Figure 2 , a high-strength joint ball pin assembly includes a base 1, a ball seat 2 is arranged on the base 1, a sphere 3 is arranged in the ball seat 2, a ball pin rod 4 is fixed on the sphere 3, a dust cover 5 is arranged at the upper end of the ball seat 2, a threaded groove is opened at one end of the ball pin rod 4 extending out of the dust cover 5, a fixing groove adapted to the sphere 3 is opened in the ball seat 2, a plurality of first limiting blocks 7 are arranged on the side surface of the sphere 3, a second limiting block 17 is arranged at the lower end of the sphere 3, and a limiting mechanism is arranged between the ball seat 2 and the sphere 3.

[0035] When the ball joint assembly is in use, the staff installs the sphere 3 into the ball seat 2, and then fixes it to the required automotive part through the thread groove on the ball pin rod 4, so that the sphere 3 contacts and fits with the first limiting block 7 and the second limiting block 17. The dust cover 5 protects the ball pin rod 4 to reduce the entry of dust and debris, facilitating the operation of the ball joint assembly. Through the limiting mechanism, the wear between the ball seat 2 and the ball pin body is compensated, so that the ball seat 2 fits with the ball pin body, reducing wear and loosening, and facilitating the stability and durability of the vehicle.

[0036] Refer to Figure 2 and Figure 3 As shown in FIGS. and, the limiting mechanism includes a limiting column 6 fixed to the side of the first limiting block 7 away from the sphere 3. One end of the limiting column 6 is fixed with a spring 8. A plurality of limiting grooves 11 are formed in the inner wall of the ball seat 2. One end of the limiting column 6 and the spring 8 are both located in the limiting grooves 11. A limiting component is arranged between the limiting column 6 and the ball seat 2. The limiting component includes a moving plate 10 fixed to the end of the spring 8 away from the limiting column 6. The moving plate 10 is slidably arranged with the ball seat 2. A rotating column 9 is fixedly connected to the side of the moving plate 10 away from the spring 8. The rotating column 9 is threadedly connected to the ball seat 2. A limiting part is arranged between the second limiting block 17 and the base 1. The limiting part includes a stud 18 rotatably connected to the lower end of the ball seat 2. The stud 18 is threadedly connected to the base 1. The stud 18 penetrates through the base 1. The second limiting block 17 is fixedly connected to the base 1. The second limiting block 17 extends into the ball seat 2. A limiting rod 19 is fixedly connected to the side of the ball seat 2 away from the stud 18. The limiting rod 19 slidably penetrates through the base 1.

[0037] When the ball joint assembly is in use, the elastic force of the spring 8 drives the limiting column 6 to move. The movement of the limiting column 6 drives the first limiting block 7 to move, so that the first limiting block 7 contacts and fits with the sphere 3, increasing the contact area and reducing wear. By screwing the rotating column 9, the rotating column 9 rotates threadedly with the ball seat 2, so that the moving plate 10 moves in the limiting groove 11, compressing the spring 8, improving the contact force of the first limiting block 7 on the sphere 3, facilitating tight fitting. By screwing the stud 18, the base 1 moves closer to the ball seat 2, driving the second limiting block 17 to contact the sphere 3. At the same time, the base 1 slides on the limiting rod 19 to limit the base 1, reducing looseness and wear. Through the limiting mechanism, the wear between the ball seat 2 and the ball pin body is compensated, so that the ball seat 2 fits with the ball pin body, reducing wear and loosening, and facilitating the stability and durability of the vehicle.

[0038] Refer to Figure 1 and Figure 4, the dust cover 5 is threadedly connected to the ball seat 2. The dust cover 5 is provided with a plurality of exhaust holes 12 which are arranged in an array, and a filter screen 13 is fixed in the exhaust holes 12. Two symmetrical lubricating grooves 14 are formed on the side surfaces of the ball seat 2. The lubricating grooves 14 are inclined. The lubricating grooves 14 correspond to the sphere 3. A sealing block 15 is arranged in the lubricating grooves 14. A connecting line 16 is fixed on the sealing block 15, and the connecting line 16 is fixedly connected to the ball seat 2. The dust cover 5 is made of polyurethane material, the sphere 3 and the ball pin rod 4 are both made of high-strength alloy steel material, and a layer of cemented carbide coating is provided on the surfaces of the sphere 3 and the ball pin rod 4. The limiting block one 7, the limiting block two 17 and the sealing block 15 are all made of elastic rubber material.

[0039] When the ball pin assembly is in use, through the exhaust holes 12 on the dust cover 5, the damage to the dust cover 5 caused by the internal and external pressure difference generated by temperature change is reduced, which is convenient for protection. The exhaust holes 12 are protected by the filter screen 13 to reduce the entry of dust and debris. When lubricating oil needs to be added, the sealing block 15 is opened and taken out, and lubricating oil is injected through the inclined oil injection hole to reduce friction and wear. The connecting rope is convenient for restricting the sealing block 15. When the sealing block 15 is reset, it is convenient for the sealing of the ball seat 2. The dust cover 5 is made of polyurethane material and can still maintain good sealing performance in harsh environments. A layer of cemented carbide coating is provided on the surfaces of the sphere 3 and the ball pin rod 4, which is realized by physical vapor deposition (PVD) technology. This coating can significantly improve the hardness and wear resistance of the ball pin and extend the service life. The limiting block one 7, the limiting block two 17 and the sealing block 15 are all made of elastic rubber material, which improves the wear resistance and sealing performance of the ball pin assembly.

[0040] The implementation principle of a high-strength joint ball pin assembly in this embodiment is: when the ball pin assembly is in use, the staff installs the sphere 3 into the ball seat 2, and then it is convenient to be fixed to the required automotive part through the thread groove on the ball pin rod 4, so that the sphere 3 contacts and fits with the limiting block one 7 and the limiting block two 17. The ball pin rod 4 is protected by the dust cover 5 to reduce the entry of dust and debris, which is convenient for the operation of the ball pin assembly;

[0041] When the ball pin assembly is in use, the elastic force of the spring 8 drives the limiting column 6 to move. The movement of the limiting column 6 drives the limiting block one 7 to move, so that the limiting block one 7 contacts and fits with the sphere 3, increasing the contact area and reducing wear. Then, by turning the rotating column 9, the rotating column 9 rotates threadedly with the ball seat 2, so that the moving plate 10 moves in the limiting groove 11, compressing the spring 8, improving the contact force of the limiting block one 7 on the sphere 3, facilitating close fitting. Then, by turning the stud 18, the base 1 moves closer to the ball seat 2, driving the limiting block two 17 to contact the sphere 3. At the same time, the base 1 slides on the limiting rod 19 to restrict the base 1, reducing looseness and wear;

[0042] When the ball pin assembly is in use, through the exhaust hole 12 on the dust cover 5, the damage to the dust cover 5 caused by the internal and external pressure difference generated by temperature changes is reduced, which is convenient for protection. The exhaust hole 12 is protected by the filter screen 13 to reduce the entry of dust and debris. When lubricating oil needs to be added, the sealing block 15 is opened and removed, and the lubricating oil is injected through the inclined oil injection hole to reduce friction and wear. The connecting rope is convenient for restricting the sealing block 15. When the sealing block 15 is reset, it is convenient for the sealing of the ball seat 2. The dust cover 5 is made of polyurethane material and can still maintain good sealing performance in harsh environments. A layer of hard alloy coating is provided on the surfaces of the sphere 3 and the ball pin rod 4, which is achieved through physical vapor deposition (PVD) technology. This coating can significantly improve the hardness and wear resistance of the ball pin and extend its service life. The limiting block one 7, the limiting block two 17, and the sealing block 15 are all made of elastic rubber material to improve the wear resistance and sealing performance of the ball pin assembly.

Claims

1. A high-strength joint ball pin assembly, comprising a base (1), characterized in that: A ball seat (2) is provided on the base (1). A sphere (3) is provided inside the ball seat (2). A ball pin rod (4) is fixed on the sphere (3). A housing dust cover (5) is provided at the upper end of the ball seat (2). A threaded groove is provided at one end of the ball pin rod (4) extending out of the dust cover (5). A fixing groove adapted to the sphere (3) is provided inside the ball seat (2). A plurality of first limiting blocks (7) are provided on the side surface of the sphere (3). A second limiting block (17) is provided at the lower end of the sphere (3). A limiting mechanism is provided between the ball seat (2) and the sphere (3).

2. The high-strength joint ball pin assembly according to claim 1, wherein: The limiting mechanism includes a limiting column (6) fixed on the side of the first limiting block (7) away from the sphere (3). A spring (8) is fixed at one end of the limiting column (6). A plurality of limiting grooves (11) are provided on the inner wall of the ball seat (2). One end of the limiting column (6) and the spring (8) are both located in the limiting grooves (11). A limiting component is provided between the limiting column (6) and the ball seat (2).

3. The high-strength joint ball pin assembly according to claim 2, characterized in that: The limiting component includes a moving plate (10) fixed at the end of the spring (8) away from the limiting column (6). The moving plate (10) is slidably arranged with the ball seat (2). A rotating column (9) is fixedly connected to the side of the moving plate (10) away from the spring (8). The rotating column (9) is threadedly connected to the ball seat (2). A limiting part is provided between the second limiting block (17) and the base (1).

4. The high-strength joint ball pin assembly according to claim 3, wherein: The limiting part includes a stud (18) rotatably connected to the lower end of the ball seat (2). The stud (18) is threadedly connected to the base (1). The stud (18) penetrates through the base (1). The second limiting block (17) is fixedly connected to the base (1). The second limiting block (17) extends into the ball seat (2). A limiting rod (19) is fixedly connected to the side of the ball seat (2) away from the stud (18). The limiting rod (19) slidably penetrates through the base (1).

5. The high-strength joint ball pin assembly according to claim 1, characterized in that: The dust cover (5) is threadedly connected to the ball seat (2). A plurality of exhaust holes (12) are provided on the dust cover (5) and are arranged in an array. A filter screen (13) is fixed in the exhaust holes (12).

6. The high-strength joint ball pin assembly according to claim 1, characterized in that: Two symmetric lubricating grooves (14) are provided on the side surface of the ball seat (2). The lubricating grooves (14) are inclined. The lubricating grooves (14) correspond to the sphere (3). A sealing block (15) is provided in the lubricating grooves (14). A connecting line (16) is fixed on the sealing block (15). The connecting line (16) is fixedly connected to the ball seat (2).

7. A high-strength joint ball pin assembly according to claim 1, characterized in that: The dust cover (5) is made of polyurethane material. The sphere (3) and the ball pin rod (4) are both made of high-strength alloy steel material. A layer of cemented carbide coating is provided on the surfaces of the sphere (3) and the ball pin rod (4).

8. The high-strength joint ball pin assembly according to claim 6, characterized in that: The first limiting block (7), the second limiting block (17) and the sealing block (15) are all made of elastic rubber material.

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