A type of anti-breakage automotive ball joint

Abstract

This utility model relates to the field of automotive ball joint technology and discloses a fracture-resistant automotive ball joint, including a ball shell and a dust cover. A ball pin is installed inside the ball shell, and a first threaded post is installed at the front end of the ball pin. A mounting bracket is threaded onto the first threaded post. The outer material of the ball shell is an aluminum alloy layer, and an inner layer of the aluminum alloy layer is a nickel-based alloy layer. The inner layer of the nickel-based alloy layer is a soft friction-reducing layer made of graphite material. In this utility model, the strength of the entire ball shell is improved by the aluminum alloy layer and the nickel-based alloy layer, which prevents the ball shell from breaking due to external forces, thus reducing the replacement cost. The soft friction-reducing layer, made of graphite material, can reduce the movement resistance of the ball pin inside the ball shell, prevent the ball joint surface from breaking, not affect driving comfort, prevent steering failure, and avoid safety accidents.

Description

Technical Field

[0001] This utility model relates to the field of automotive ball joint technology, specifically a fracture-resistant automotive ball joint. Background Technology

[0002] The ball joint is a key component connecting the suspension system (upper and lower control arms, control arms) to the steering knuckle hub. It uses a spherical structure to transmit power and allow rotation at multiple angles, ensuring smooth operation of the steering mechanism and reducing vibration.

[0003] Traditional automotive ball joints are made of a single metal material. Due to insufficient strength, they are prone to fatigue cracks when subjected to alternating loads over a long period of time. During severe bumps, the impact force is directly transmitted to the ball joint, which can easily cause the surface of the ball joint to break, affecting driving comfort, potentially leading to steering failure and causing safety accidents. Furthermore, the dust cover fixing method of existing automotive ball joints is not airtight enough, leaving gaps. Sand and moisture can enter and accelerate internal wear, causing internal parts to become damp and reducing their service life. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a fracture-resistant automotive ball joint, which has advantages such as fracture resistance and solves the problems mentioned in the background technology.

[0005] To achieve the above-mentioned anti-breakage purpose, this utility model provides the following technical solution: an anti-breakage automotive ball joint, including a ball shell and a dust cover, wherein a ball pin is installed inside the ball shell, a first threaded post is installed at the front end of the ball pin, and a mounting bracket is threadedly connected to the first threaded post; The outer material of the spherical shell is an aluminum alloy layer, the inner layer of the aluminum alloy layer is a nickel-based alloy layer, the inner layer of the nickel-based alloy layer is a soft wear-reducing layer, and the soft wear-reducing layer is made of graphite material. As a further improvement of this utility model: the outer layer of the aluminum alloy layer is coated with an anti-corrosion coating, which improves the corrosion resistance of the spherical shell surface.

[0006] As a further improvement of this utility model: an mounting plate is installed at the rear end of the dust cover, a groove is provided at the front end of the spherical shell, and a sealing ring is provided in the groove. The sealing ring is made of silicone material. Four fixing bolts are provided on the mounting plate, and all the fixing bolts are threaded to the spherical shell. By tightening the four fixing bolts, the dust cover is installed on the spherical shell. The sealing ring improves the sealing between the dust cover and the spherical shell, preventing external dust and moisture from entering the interior of the spherical shell through the gap, preventing internal contamination, and improving service life.

[0007] As a further improvement of this utility model: a connecting block is installed on the left side wall of the spherical shell, and a reinforcing sleeve is installed on the left side wall of the connecting block. A second threaded post is internally threaded onto the reinforcing sleeve. The second threaded post and the reinforcing sleeve adopt a threaded connection structure, which facilitates partial replacement and allows the second threaded post to be replaced at different positions, thereby reducing the cost of overall replacement and saving costs.

[0008] As a further improvement of this utility model, both the first threaded post and the second threaded post are made of carbon steel, which improves their strength.

[0009] As a further improvement of this utility model, the dust cover is made of polytetrafluoroethylene (PTFE), which has strong corrosion resistance and high temperature resistance.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, the strength of the entire ball shell is improved by the aluminum alloy layer and the nickel-based alloy layer, which avoids the ball shell from breaking due to external force and reduces the replacement cost. The soft friction-reducing layer is made of graphite material, which can reduce the movement resistance of the ball pin inside the ball shell, prevent the ball head surface from breaking, not affect driving comfort, prevent steering failure, and avoid causing safety accidents.

[0011] 2. In this utility model, by tightening four fixing bolts, the dust cover is installed on the spherical shell. The sealing ring improves the sealing between the dust cover and the spherical shell, preventing external dust and moisture from entering the interior of the spherical shell through the gap, preventing internal contamination, and improving service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the appearance of the present utility model; Figure 2 This is the intended explosive structure of the present invention; Figure 3 This is a schematic diagram of the spherical shell in this utility model.

[0013] In the diagram: 1. Spherical shell; 2. First threaded post; 3. Dust cover; 4. Mounting plate; 5. Connecting block; 6. Second threaded post; 7. Fixing bolt; 8. Sealing ring; 9. Ring groove; 10. Reinforcing sleeve; 11. Aluminum alloy layer; 12. Nickel-based alloy layer; 13. Soft anti-friction layer; 14. Mounting bracket; 15. Anti-corrosion coating. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] It should be noted that both the nickel-based alloy layer 12 and the graphite material are existing technologies and are common knowledge to those skilled in the art, and will not be elaborated upon here.

[0016] Please see Figures 1-3 In this embodiment of the utility model, a fracture-resistant automobile ball joint includes a ball shell 1 and a dust cover 3. A ball pin is installed inside the ball shell 1, and a first threaded post 2 is installed at the front end of the ball pin. A mounting bracket 14 is threaded onto the first threaded post 2. The outer material of the spherical shell 1 is an aluminum alloy layer 11, the inner layer of the aluminum alloy layer 11 is a nickel-based alloy layer 12, the inner layer of the nickel-based alloy layer 12 is a soft friction-reducing layer 13, and the soft friction-reducing layer 13 is made of graphite material. The aluminum alloy layer 11 is coated with an anti-corrosion coating 15, which improves the corrosion resistance of the surface of the spherical shell 1. A mounting plate 4 is installed at the rear end of the dust cover 3, and a groove 9 is provided at the front end of the spherical shell 1. A sealing ring 8, made of silicone material, is installed inside the groove 9. Four fixing bolts 7 are provided on the mounting plate 4, and all four bolts 7 are threaded to the spherical shell 1. By tightening the four fixing bolts 7, the dust cover 3 is installed onto the spherical shell 1. The sealing ring 8 improves the sealing between the dust cover 3 and the spherical shell 1, preventing external dust and moisture from entering the interior of the spherical shell 1 through gaps and preventing internal contamination. The first threaded post 2 and the second threaded post 6 are both made of carbon steel, which improves their strength. The dust cover 3 is made of polytetrafluoroethylene (PTFE), which has strong corrosion resistance and high temperature resistance.

[0017] The working principle of this utility model is as follows: The first threaded post 2 and the second threaded post 6 are respectively installed on the corresponding connecting parts, and the four fixing bolts 7 are tightened. The dust cover 3 is installed on the spherical shell 1. The sealing ring 8 improves the sealing between the dust cover 3 and the spherical shell 1, preventing external dust and moisture from entering the interior of the spherical shell 1 through the gap, thus preventing internal contamination. The aluminum alloy layer 11 and the nickel-based alloy layer 12 improve the overall strength of the spherical shell 1, preventing external forces from causing the spherical shell 1 to break and reducing replacement costs. The soft anti-friction layer 13 is made of graphite material, which can reduce the movement resistance of the ball pin inside the spherical shell 1. The dust cover 3 is made of polytetrafluoroethylene material, which has strong corrosion resistance and high temperature resistance. The second threaded post 6 and the reinforcing sleeve 10 adopt a threaded connection structure, which facilitates partial replacement and allows the second threaded post 6 to be replaced at different positions, reducing the cost of overall replacement and saving costs.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fracture-resistant automobile ball joint, comprising a ball shell (1) and a dust cover (3), wherein a ball pin is installed inside the ball shell (1), and a first threaded post (2) is installed at the front end of the ball pin, and a mounting bracket (14) is threaded onto the first threaded post (2). Its features are: The outer material of the spherical shell (1) is an aluminum alloy layer (11), and the inner layer of the aluminum alloy layer (11) is provided with a nickel-based alloy layer (12). The inner layer of the nickel-based alloy layer (12) is provided with a soft wear-reducing layer (13), and the soft wear-reducing layer (13) is made of graphite material.

2. The anti-breakage automotive ball joint according to claim 1, characterized in that: The aluminum alloy layer (11) is coated with an anti-corrosion coating (15).

3. The anti-breakage automotive ball joint according to claim 1, characterized in that: The dust cover (3) has an installation plate (4) installed at the rear end. The ball shell (1) has a groove (9) at the front end. A sealing ring (8) is installed in the groove (9). The sealing ring (8) is made of silicone material. The installation plate (4) has four fixing bolts (7). All the fixing bolts (7) are threaded to the ball shell (1).

4. The anti-breakage automotive ball joint according to claim 1, characterized in that: A connecting block (5) is installed on the left side wall of the spherical shell (1), and a reinforcing sleeve (10) is installed on the left side wall of the connecting block (5). A second threaded column (6) is connected to the inner thread of the reinforcing sleeve (10).

5. A fracture-resistant automotive ball joint according to claim 1, characterized in that: The first threaded post (2) and the second threaded post (6) are both made of carbon steel.

6. A fracture-resistant automotive ball joint according to claim 1, characterized in that: The dust cover (3) is made of polytetrafluoroethylene material.

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