High strength automotive knuckle arm

Abstract

This utility model discloses a high-strength automotive steering knuckle arm, including a connecting arm and a connecting block. One end of the outer surface of the connecting arm is fixedly connected to the middle of one side of the outer surface of the connecting block. Threaded holes are provided at both ends of one side of the outer surface of the connecting block, with one end of each threaded hole extending to the other side of the outer surface of the connecting block. The high-strength automotive steering knuckle arm of this utility model has a hardened layer on the outer walls of the connecting arm, connecting block, and connecting ring, making it suitable for high-friction conditions of automotive steering knuckle arms. This reduces surface wear after long-term use and extends service life. The strength of the steering knuckle arm is improved by the first and second reinforcing blocks. A wear-resistant bushing, installed inside the connecting ring, serves as a rotating contact surface, replacing direct friction between the steering knuckle arm's metal body and other components, thus reducing wear.

Description

Technical Field

[0001] This utility model relates to the field of automotive steering knuckle arm technology, specifically a high-strength automotive steering knuckle arm. Background Technology

[0002] As a key load-bearing component of the automotive steering system, the structural strength and wear resistance of the steering knuckle arm directly affect the vehicle's handling safety and service life.

[0003] Traditional steering knuckle arms have the following main technical defects:

[0004] 1. Insufficient structural strength: Conventional one-piece steering knuckle arms are prone to stress concentration in the transition area between the connecting arm and the connecting block and mounting ring, and fatigue cracks are likely to occur under long-term alternating loads;

[0005] 2. Poor maintenance convenience: When the inner bushing of the mounting ring wears out, most designs require the replacement of the entire steering knuckle arm assembly, resulting in high maintenance costs.

[0006] Therefore, we propose a high-strength automotive steering knuckle arm. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] In view of the shortcomings of the prior art, this utility model provides a high-strength automotive steering knuckle arm, which improves the strength and service life of the automotive steering knuckle arm and can effectively solve the problems in the background art.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-strength automotive steering knuckle arm, comprising a connecting arm and a connecting block, wherein one end of the outer surface of the connecting arm is fixedly connected to the middle of one side of the outer surface of the connecting block, and threaded holes are provided at both ends of one side of the outer surface of the connecting block, one end of the threaded hole extending to the other side of the outer surface of the connecting block, and a first reinforcing block is fixedly installed between the end of the outer surface of the two sides of the connecting arm near the connecting block and one side of the outer surface of the connecting block, and an mounting ring assembly is connected to the outer surface of the end of the connecting arm away from the connecting block, the mounting ring assembly comprising a connecting ring, a wear-resistant bushing, a bottom limiting ring, a top pressure ring and an internal hexagon countersunk bolt, and the outer surface of the end of the connecting arm away from the connecting block is fixedly connected to one side of the outer surface of the connecting ring, and a second reinforcing block is fixedly installed between the outer surface of the two sides of the connecting arm away from the connecting block and the outer wall of the connecting ring.

[0011] Preferably, the connecting arm, connecting block and connecting ring are all made of high-strength alloy steel, and the surface is nitrided to form a hardened layer of 0.1-0.3mm.

[0012] Preferably, the wear-resistant bushing is interference-fitted onto the inner wall of the connecting ring.

[0013] Preferably, the bottom limiting ring is fixed to the lower outer surface of the connecting ring, and the top pressing ring is connected to the upper outer surface of the connecting ring by a countersunk hexagonal bolt.

[0014] Preferably, the bottom limiting ring and the top pressing ring are the same size.

[0015] Preferably, the wear-resistant bushing is located between the upper outer surface of the bottom limiting ring and the lower outer surface of the top pressing ring.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a high-strength automotive steering knuckle arm, which has the following beneficial effects:

[0018] 1. This high-strength automotive steering knuckle arm has a hardened layer on the outer wall of the connecting arm, connecting block and connecting ring, which is suitable for high-friction conditions of automotive steering knuckle arms, reduces surface wear after long-term use and extends service life.

[0019] 2. This high-strength automotive steering knuckle arm improves its strength by incorporating a first reinforcing block and a second reinforcing block.

[0020] 3. This high-strength automotive steering knuckle arm features a wear-resistant bushing installed inside the connecting ring. This bushing serves as a rotating contact surface, replacing the direct friction between the steering knuckle arm body's metal material and other components, thus reducing wear. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a high-strength automotive steering knuckle arm according to the present invention.

[0022] Figure 2 This is a cross-sectional view of one end of the connecting arm in a high-strength automotive steering knuckle arm according to this utility model.

[0023] Figure 3 This is a schematic diagram of the structure of a high-strength automotive steering knuckle arm mounting ring assembly according to the present invention.

[0024] Figure 4 This is a side cross-sectional view of the mounting ring assembly in a high-strength automotive steering knuckle arm according to this utility model.

[0025] In the diagram: 1. Connecting arm; 2. Connecting block; 3. Mounting ring assembly; 4. Threaded hole; 5. First reinforcing block; 6. Second reinforcing block; 7. Hardened layer; 8. Connecting ring; 9. Wear-resistant bushing; 10. Bottom limiting ring; 11. Top pressure ring; 12. Socket head bolt. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] This embodiment is a high-strength automotive steering knuckle arm.

[0028] like Figure 1-4 As shown, the device includes a connecting arm 1 and a connecting block 2. One end of the outer surface of the connecting arm 1 is fixedly connected to the middle of one side of the outer surface of the connecting block 2. Threaded holes 4 are provided at both ends of one side of the outer surface of the connecting block 2. One end of the threaded hole 4 extends to the other side of the outer surface of the connecting block 2. A first reinforcing block 5 is fixedly installed between the end of the outer surface of the connecting arm 1 closest to the connecting block 2 and one side of the outer surface of the connecting block 2. An installation ring assembly 3 is connected to the outer surface of the end of the connecting arm 1 away from the connecting block 2. The installation ring assembly 3 includes a connecting ring 8, a wear-resistant bushing 9, a bottom limiting ring 10, a top pressure ring 11, and an internal hexagon countersunk bolt 12. The outer surface of the end of the connecting arm 1 away from the connecting block 2 is fixedly connected to one side of the outer surface of the connecting ring 8. A second reinforcing block 6 is fixedly installed between the outer surface of the two sides of the connecting arm 1 away from the connecting block 2 and the outer wall of the connecting ring 8.

[0029] The connecting arm 1, connecting block 2, and connecting ring 8 are all made of high-strength alloy steel, and their surfaces are nitrided to form a hardened layer 7 of 0.1-0.3mm. The wear-resistant bushing 9 is interference-fitted into the inner wall of the connecting ring 8. The bottom limiting ring 10 is fixed to the lower outer surface of the connecting ring 8, and the top pressure ring 11 is connected to the upper outer surface of the connecting ring 8 by a countersunk hexagonal bolt 12. The bottom limiting ring 10 and the top pressure ring 11 have the same dimensions. The wear-resistant bushing 9 is located between the upper outer surface of the bottom limiting ring 10 and the lower outer surface of the top pressure ring 11.

[0030] It should be noted that this utility model is a high-strength automotive steering knuckle arm. A first reinforcing block 5 is fixed between the connecting arm 1 and the connecting block 2, and a second reinforcing block 6 is fixed between the connecting arm 1 and the connecting ring 8 in the mounting ring assembly 3. The first reinforcing block 5 and the second reinforcing block 6 strengthen the steering knuckle arm and improve its strength. A hardened layer 7 is provided on the outer wall of the connecting arm 1, the connecting block 2, and the connecting ring 8, which is suitable for the high-friction conditions of the automotive steering knuckle arm, reduces surface wear after long-term use, and extends its service life. The wear-resistant bushing 9 is also included. The wear-resistant bushing 9 is installed inside the connecting ring 8 as a rotating contact surface, replacing the direct friction between the metal material of the steering knuckle arm body and other components, thus reducing wear. When replacing the wear-resistant bushing 9, remove the internal hexagon countersunk bolt 12 between the top pressure ring 11 and the connecting ring 8 to release the limit on the wear-resistant bushing 9, pull the wear-resistant bushing 9 out of the connecting ring 8, replace it with a new wear-resistant bushing 9, and then install the top pressure ring 11. The top pressure ring 11 and the bottom limit ring 10 limit the wear-resistant bushing 9 to prevent the wear-resistant bushing 9 from moving out of the connecting ring 8.

[0031] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-strength automotive steering knuckle arm, comprising a connecting arm (1) and a connecting block (2), wherein one end of the outer surface of the connecting arm (1) is fixedly connected to the middle portion of one side of the outer surface of the connecting block (2), characterized in that: Threaded holes (4) are provided at both ends of the outer surface of one side of the connecting block (2). One end of the threaded hole (4) extends through to the outer surface of the other side of the connecting block (2). A first reinforcing block (5) is fixedly installed between the end of the outer surface of both sides of the connecting arm (1) close to the connecting block (2) and the outer surface of one side of the connecting block (2). An installation ring assembly (3) is connected to the outer surface of the end of the connecting arm (1) away from the connecting block (2). The installation ring assembly (3) includes a connecting ring (8), a wear-resistant bushing (9), a bottom limiting ring (10), a top pressure ring (11), and an internal hexagon countersunk bolt (12). The outer surface of the end of the connecting arm (1) away from the connecting block (2) is fixedly connected to the outer surface of one side of the connecting ring (8). A second reinforcing block (6) is fixedly installed between the outer surface of both sides of the connecting arm (1) away from the connecting block (2) and the outer wall of the connecting ring (8).

2. The high-strength automotive steering knuckle arm according to claim 1, characterized in that: The connecting arm (1), connecting block (2) and connecting ring (8) are all made of high-strength alloy steel, and the surface is nitrided to form a hardened layer (7) of 0.1-0.3mm.

3. A high-strength automotive steering knuckle arm according to claim 2, characterized in that: The wear-resistant bushing (9) is interference-fitted to the inner wall of the connecting ring (8).

4. A high-strength automotive steering knuckle arm according to claim 3, characterized in that: The bottom limiting ring (10) is fixed to the lower outer surface of the connecting ring (8), and the top pressing ring (11) is connected to the upper outer surface of the connecting ring (8) by a countersunk hexagonal bolt (12).

5. A high-strength automotive steering knuckle arm according to claim 4, characterized in that: The bottom limiting ring (10) has the same size as the top pressing ring (11).

6. A high-strength automotive steering knuckle arm according to claim 5, characterized in that: The wear-resistant bushing (9) is located between the upper outer surface of the bottom limiting ring (10) and the lower outer surface of the top pressing ring (11).

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