High-stability ball head assembly

Abstract

The utility model discloses a high-stability ball head assembly and relates to the technical field of automobile accessories, the high-stability ball head assembly comprises a ball shell and a ball head which are used for providing support, a lining is fixedly installed at the bottom of the inner wall of the ball shell, and a dust cover used for preventing water and dust from entering the ball shell is fixedly installed at the top of the ball shell through bolts; a spring is fixedly installed above the dustproof cover, a rubber sleeve used for assisting sealing is fixedly installed on the outer wall of the top of the dustproof cover, a pull rod used for being connected with two rear wheels of an automobile is welded to one side of the spherical shell, and a ball pin rod is welded to the top of the ball head. The pull rod is of an integral structure, the spherical shell is welded to one side of the pull rod, and the ball head and the ball pin rod are directly installed in the spherical shell on one side of the pull rod, so that the bearing strength of the pull rod and ball head assembly can be improved, the structure is simpler, the production process can be simplified, the production cost is reduced, and the steering stability is guaranteed; safe and reliable steering operation is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of automobile accessories, and in particular to a high-stability ball head assembly. Background Art

[0002] The control arm ball joint assembly is widely used in independent suspension systems. The control arm or thrust rod is often connected to other components through the ball pin located at the end of the control arm ball joint assembly. The control arm ball joint assembly can realize the up and down jumping and steering movement of the wheel, and is one of the most important components in the steering system.

[0003] After searching, the patent with Chinese patent authorization announcement number CN214367238U provides an automobile tie rod assembly, which belongs to the technical field of automobile steering system. It solves the problem that the existing ball stud and ball head seat have high installation precision and inconvenient assembly. The automobile tie rod assembly includes a ball stud and a ball head seat. The ball head cavity of the ball head seat is provided with an upper spring seat, a lower spring seat and a conical spring. The upper spring seat is a bowl-shaped structure. The upper spring seat is against the outer wall of the ball head of the ball stud. A bolt for support is provided between the lower spring seat and the bottom of the ball head cavity of the ball head seat. The bolt is spirally connected to the bottom of the ball head cavity of the ball head seat, and the head of the bolt is in abutment with the lower spring seat. The stable assembly of the ball head seat and the ball stud of the utility model reduces the assembly precision of the ball head seat and the ball stud, facilitates assembly, and has a stable structure.

[0004] The dust covers in the above patents are directly mounted on the ball head, which results in poor stability of the dust covers during driving of the car, and thus poor protection of the ball head, so that dust can easily enter the interior of the ball head after long-term use. Utility Model Content

[0005] The purpose of the utility model is to solve or at least alleviate the problem in the prior art that the dust cover is directly sleeved on the ball head, resulting in poor stability of the dust cover during driving of the car, thereby poor protection of the ball head, so that dust can easily enter the interior of the ball head after long-term use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-stability ball head assembly, including a ball head and a ball shell for providing support, a bushing fixedly installed on the bottom of the inner wall of the ball shell, a dust cover fixedly installed on the top of the ball shell by bolts for preventing water and dust from entering the ball shell, a spring fixedly installed above the dust cover, a rubber sleeve fixedly installed on the top outer wall of the dust cover for auxiliary sealing, and a pull rod for connecting the two rear wheels of a car welded to one side of the ball shell.

[0007] By adopting the above technical solution, a pull rod is set up, in which the pull rod is an integral structure, a ball shell is welded on one side of the pull rod, and the ball head and the ball pin rod are directly installed in the ball shell on one side of the pull rod, thereby improving the bearing strength of the pull rod ball head assembly. The structure is simpler, which can simplify the production process, reduce production costs, ensure steering stability, and ensure safe and reliable steering operations.

[0008] Optionally, a ball pin rod is welded to the top of the ball head, the ball head is a spherical structure, and the ball head and the ball pin rod are rotatably matched with the ball shell.

[0009] By adopting the above technical solution, the ball pin rod mainly plays the role of transmitting the force of the automobile suspension and the balance bar.

[0010] Optionally, the dust cover is made of neoprene, the diameter of the opening of the dust cover gradually increases from top to bottom, and the dust cover is an integrally formed structure.

[0011] By adopting the above technical scheme, the chloroprene rubber makes the dust cover have good physical, oil resistance, heat resistance, flame resistance, sunlight resistance, ozone resistance, acid and alkali resistance, chemical reagent resistance, high and reversible, good adhesion, aging resistance, heat resistance and other excellent properties.

[0012] Optionally, the spherical shell is made of polyoxymethylene.

[0013] By adopting the above technical solution, polyoxymethylene makes the spherical shell have high mechanical properties, such as strength, modulus, wear resistance, toughness, fatigue resistance and creep resistance, and also has excellent electrical insulation, solvent resistance and processability.

[0014] Optionally, the ball pin rod is made of 40Cr material, and one end of the ball pin rod is integrally connected to the ball head.

[0015] The above technical solution is adopted, wherein 40Cr steel is one of the most widely used steels in the machinery manufacturing industry, so that the ball pin rod has good comprehensive mechanical properties, good low-temperature impact toughness and low notch sensitivity.

[0016] Optionally, the interior of the spherical shell is a circular cavity, and the spherical shell cooperates with the ball pin rod to provide support for the ball pin rod.

[0017] The above technical solution is adopted, wherein the ball shell cooperates with the ball pin rod to provide support for the ball pin rod and ensure that the ball pin rod can swing within a set angle range.

[0018] Optionally, the bushings are provided in two groups, and the surfaces of the two groups of bushings fit with the outer surface of the ball head.

[0019] By adopting the above technical scheme, a bushing is set, and the surface of the bushing fits with the outer surface of the ball head, so that when the ball pin rod rotates, the contact pressure between the ball head and the bushing surface at each position is roughly equal, and the swing torque values ​​between different positions of the ball pin rod are also equal, thereby reducing the tolerance of the swing torque value of the ball pin rod, and the consistency of the swing torque value is good, thereby improving the stability of the torque transmission, ensuring that the actual movement direction of the ball head is consistent with the force direction, avoiding torque transmission errors, and ensuring that the ball head of the ball pin rod rotates flexibly and the steering control mechanism runs smoothly.

[0020] In summary, the beneficial effects of this application are as follows:

[0021] 1. The new type of the present application has a pull rod, which is an integral structure. A ball shell is welded on one side of the pull rod, and the ball head and the ball pin rod are directly installed in the ball shell on one side of the pull rod, thereby improving the bearing strength of the pull rod ball head assembly. The structure is simpler, which can simplify the production process, reduce production costs, ensure steering stability, and ensure safe and reliable steering operations.

[0022] 2. In the new type of the present application, a dust cover is provided, wherein the dust cover and the ball shell are fixedly connected by bolts, and a rubber sleeve is fixedly installed on the surface of the dust cover. When in use, the rubber sleeve can cooperate with the dust cover to prevent the dust cover from being separated from the ball head and the ball pin rod, thereby improving the protectiveness of the dust cover and avoiding the problem that the dust cover has poor stability during driving of the car, resulting in poor protection of the ball head and the ball pin rod, and dust can easily enter the inside of the ball shell.

[0023] 3. In the new type of the present application, a bushing is provided, and the surface of the bushing fits with the outer surface of the ball head, so that when the ball pin rod rotates, the contact pressure between the ball head and the bushing surface at each position is roughly equal, and the swing torque values ​​between different positions of the ball pin rod are also equal, thereby reducing the tolerance of the swing torque value of the ball pin rod, and improving the consistency of the swing torque value, thereby improving the stability of the torque transmission, ensuring that the actual movement direction of the ball head is consistent with the force direction, avoiding torque transmission errors, and ensuring that the ball head of the ball pin rod can rotate flexibly and the steering control mechanism can operate smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the entire application;

[0025] Figure 2 It is a schematic diagram of the ball head and ball pin rod of the present application;

[0026] Figure 3 It is a schematic diagram of the spherical shell of this application.

[0027] Figure 4 This is the dust cover diagram of this application

[0028] Explanation of the accompanying drawings: In the figure: 1, ball head; 2, ball shell; 3, dust cover; 4, pull rod; 5, ball pin rod; 6, spring; 7, rubber sleeve; 8, bushing. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-4 This application is described in further detail.

[0030] See also Figure 1-4 A high-stability ball head assembly includes a ball head 1 and a ball shell 2 for providing support. A bushing 8 is fixedly installed on the bottom of the inner wall of the ball shell 2. A dust cover 3 for preventing water and dust from entering the ball shell 2 is fixedly installed on the top of the ball shell 2 by bolts. A spring 6 is fixedly installed above the dust cover 3. A rubber sleeve 7 for auxiliary sealing is fixedly installed on the top outer wall of the dust cover 3. A pull rod 4 for connecting two rear wheels of a car is welded on one side of the ball shell 2.

[0031] Reference Figure 1 A ball pin rod 5 is welded on the top of the ball head 1. The ball head 1 is a spherical structure. The ball head 1 and the ball pin rod 5 are rotatably matched with the ball shell 2.

[0032] Reference Figure 4 The dust cover 3 is made of chloroprene rubber, the diameter of the sleeve of the dust cover 3 gradually increases from top to bottom, and the dust cover 3 is an integrated structure.

[0033] Reference Figure 2 The ball pin rod 5 is made of 40Cr material, wherein 40Cr steel is one of the most widely used steels in the machinery manufacturing industry, so that the ball pin rod 5 has good comprehensive mechanical properties, good low-temperature impact toughness and low notch sensitivity.

[0034] Reference Figure 1 The material of the ball shell 2 is polyoxymethylene.

[0035] Reference Figure 1 One end of the ball pin rod 5 is integrally connected with the ball head 1.

[0036] Reference Figure 1 The interior of the ball shell 2 is a circular cavity, and the ball shell 2 cooperates with the ball pin rod 5 to provide support for the ball pin rod 5.

[0037] Reference Figure 1 There are two groups of bushings 8 , and the surfaces of the two groups of bushings 8 fit the outer surface of the ball head 1 .

[0038] The implementation principle of the present application is as follows: when in use, the bushing 8 is provided, and the surface of the bushing 8 fits with the outer surface of the ball head 1, so that when the ball pin rod 5 rotates, the contact pressure between the ball head 1 and each position of the surface of the bushing 8 is roughly equal, and the swing torque values ​​between different positions of the ball pin rod 5 are also equal, which reduces the tolerance of the swing torque value of the ball pin rod 5, improves the consistency of the swing torque value, improves the stability of the torque transmission, ensures that the actual movement direction of the ball head 1 is consistent with the force direction, and avoids torque transmission errors; ensures that the ball head 1 of the ball pin rod 5 rotates flexibly and the steering control mechanism runs smoothly;

[0039] At the same time, by setting the tie rod 4, wherein the tie rod 4 is an integral structure, a ball shell 2 is welded on one side of the tie rod 4, and the ball head 1 and the ball pin rod 5 are directly installed in the ball shell 2 on one side of the tie rod 4, so that the bearing strength of the tie rod 4 ball head assembly can be improved, the structure is simpler, the production process can be simplified, the production cost can be reduced, the steering stability is guaranteed, and the steering operation is safe and reliable;

[0040] In addition, a dust cover 3 is provided, wherein the dust cover 3 is fixedly connected to the ball shell 2 by bolts, and a rubber sleeve 7 is fixedly installed on the surface of the dust cover 3. When in use, the rubber sleeve 7 can cooperate with the dust cover 3 to prevent the dust cover 3 from being separated from the ball head 1 and the ball pin rod 5, thereby improving the protectiveness of the dust cover 3 and avoiding the problem that the dust cover 3 has poor stability during driving of the car, resulting in poor protection of the ball head 1 and the ball pin rod 5, and dust can easily enter the inside of the ball shell 2.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-stability ball head assembly, comprising a ball head (1) and a ball shell (2) for providing support, characterized in that: A bushing (8) is fixedly mounted on the bottom of the inner wall of the spherical shell (2); a dust cover (3) for preventing water and dust from entering the spherical shell (2) is fixedly mounted on the top of the spherical shell (2) by means of bolts; a spring (6) is fixedly mounted above the dust cover (3); a rubber sleeve (7) for auxiliary sealing is fixedly mounted on the top outer wall of the dust cover (3); and a pull rod (4) for connecting two rear wheels of a car is welded on one side of the spherical shell (2).

2. A high stability ball head assembly according to claim 1, characterized in that: A ball pin rod (5) is welded to the top of the ball head (1); the ball head (1) is a spherical structure; the ball head (1) and the ball pin rod (5) are rotatably matched with the ball shell (2).

3. The high stability ball head assembly according to claim 1, characterized in that: The dust cover (3) is made of chloroprene rubber, the diameter of the opening of the dust cover (3) gradually increases from top to bottom, and the dust cover (3) is an integrally formed structure.

4. The high stability ball head assembly according to claim 1, characterized in that: The material of the spherical shell (2) is polyoxymethylene.

5. The high stability ball head assembly according to claim 2, characterized in that: The ball pin rod (5) is made of 40Cr material, and one end of the ball pin rod (5) is integrally connected to the ball head (1).

6. The high stability ball head assembly according to claim 1, characterized in that: The interior of the spherical shell (2) is a circular cavity, and the spherical shell (2) cooperates with the ball pin rod (5) to provide support for the ball pin rod (5).

7. The high stability ball head assembly according to claim 1, characterized in that: The bushings (8) are provided in two groups, and the surfaces of the two groups of bushings (8) fit the outer surface of the ball head (1).

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