Automotive aluminum alloy steering knuckle with stiffener

Abstract

This utility model belongs to the field of automotive parts technology, specifically relating to a motor vehicle aluminum alloy steering knuckle with reinforcing ribs, including a steering knuckle body and W-shaped reinforcing ribs; the steering knuckle body includes a gooseneck, and the W-shaped reinforcing ribs are disposed at the gooseneck; the steering knuckle body is provided with flange mounting holes; ball joint mounting holes and bolt mounting holes are provided around the flange mounting holes, and the W-shaped reinforcing ribs are located above the flange mounting holes. Compared with the thick and bulky gooseneck structure, this utility model adds a W-shaped reinforcing rib structure near the flange mounting holes and the upper control arm ball joint mounting holes. The W-shaped reinforcing ribs and the edge sidewalls of the gooseneck form four equilateral triangles, and the triangular structure has stability, thus ensuring performance while achieving a lightweight effect.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to an aluminum alloy steering knuckle for motor vehicles with reinforcing ribs. Background Technology

[0002] For the front steering knuckle, there are mainly two types: MacPherson strut suspension and double wishbone suspension. In comparison, the double wishbone suspension has obvious advantages. The double wishbone suspension has strong lateral rigidity, good anti-roll capability, strong road feel, good grip, and strong handling. At the same time, it is also more comfortable than the MacPherson strut suspension. Therefore, many car manufacturers currently prefer the double wishbone suspension.

[0003] However, weight reduction has always been a challenge for double wishbone steering knuckles due to their relatively large overall structure. If the structural design is flawed during weight reduction, manufacturing processes will be difficult to implement, modal requirements may not be met, and the aluminum alloy steering knuckle may even fail relevant tests. Utility Model Content

[0004] This invention proposes a motor vehicle aluminum alloy steering knuckle with reinforcing ribs to solve the problem of the large overall structure and difficulty in reducing weight in the existing steering knuckle.

[0005] To achieve the above objectives, the present invention proposes the following technical solution: A motor vehicle aluminum alloy steering knuckle with reinforcing ribs includes a steering knuckle body and a W-shaped reinforcing rib; the steering knuckle body includes a gooseneck, and the W-shaped reinforcing rib is disposed at the gooseneck; The steering knuckle body is provided with a flange mounting hole; an upper control arm ball pin mounting hole is provided to the upper left of the flange mounting hole. The W-shaped reinforcing rib is located above the flange mounting hole. The W-shaped reinforcing rib and the edge sidewall of the gooseneck form four equilateral triangles in the direction from the flange mounting hole to the upper control arm ball pin mounting hole. The four triangles share a side in turn.

[0006] Preferably, the W-shaped reinforcing rib and the edge sidewall at the gooseneck form four equilateral triangles in the direction from the flange mounting hole to the upper control arm ball pin mounting hole. The W-shaped reinforcing rib has a wall thickness of 4.3 mm, a height of 51 mm, and the side length of each equilateral triangle is 45 mm.

[0007] Preferably, bolt mounting holes are provided around the flange mounting hole, including flange bolt mounting holes and brake caliper bolt mounting holes; The flange bolt mounting holes are arranged in an equilateral triangle around the flange mounting holes, with each equilateral triangle having a side length of 97mm. The brake caliper bolt mounting holes are located to the right of the flange mounting holes.

[0008] Preferably, the W-shaped reinforcing rib and the edge sidewall at the gooseneck form four equilateral triangles in the direction from the flange mounting hole to the upper control arm ball pin mounting hole, with a wall thickness of 4.3mm, a height of 51mm, and a side length of 45mm for each equilateral triangle.

[0009] Preferably, the four equilateral triangles formed by the W-shaped reinforcing rib and the edge sidewall at the gooseneck are smoothly transitioned between each other by a chamfer with a radius of 4-6mm.

[0010] Preferably, it also includes a steering arm ball pin mounting hole, a lower front control arm ball pin mounting hole, and a lower rear control arm ball pin mounting hole; The ball joint mounting hole of the steering arm is located to the upper right of the flange mounting hole, the ball joint mounting hole of the lower front control arm is located directly below and slightly to the right of the flange mounting hole, and the ball joint mounting hole of the lower rear control arm is located directly below and slightly to the left of the flange mounting hole.

[0011] Preferably, it also includes a lower control arm weight reduction recess, which is located slightly to the right of the flange mounting hole.

[0012] Preferably, it also includes a drainage channel, which is located directly below the flange mounting hole.

[0013] Preferably, it also includes an ABS mounting hole, which is located slightly to the left of the flange mounting hole.

[0014] The advantages of this utility model are: This invention proposes a motor vehicle aluminum alloy steering knuckle with reinforcing ribs. By designing a suitable W-shaped reinforcing rib structure for the gooseneck, the weight of the steering knuckle is reduced as much as possible while ensuring the strength and NVH of the aluminum alloy steering knuckle, thus achieving a balance between lightweighting and structural performance. Attached Figure Description

[0015] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings: Figure 1 A schematic diagram of the front structure of an aluminum alloy steering knuckle for motor vehicles with reinforcing ribs; Figure 2 This is a schematic diagram of the back structure of an aluminum alloy steering knuckle for motor vehicles with reinforcing ribs. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0017] The following detailed description is exemplary and intended to provide further detailed explanation of the present invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this invention. Example

[0018] Please see Figure 1 As shown, this utility model provides a motor vehicle aluminum alloy steering knuckle with reinforcing ribs, including: a steering knuckle body, a flange mounting hole 13, a ball pin mounting hole, a bolt mounting hole, a lower control arm weight reduction recess 17, a drainage groove 18, an ABS mounting hole 21, and a W-shaped reinforcing rib 12.

[0019] The steering knuckle body is provided with a flange mounting hole 13, which is a circular hole with a radius of 30mm.

[0020] The bolt mounting holes include flange bolt mounting holes 19 and brake caliper bolt mounting holes 20. For example... Figure 2 As shown, the flange bolt mounting holes 19 are distributed around the flange mounting holes 13 in an equilateral triangle manner, with a side length of 97mm. The brake caliper bolt mounting holes 20 are distributed to the right of the flange mounting holes 13.

[0021] The ball joint mounting holes include an upper control arm ball joint mounting hole 11, a steering arm ball joint mounting hole 14, a lower front control arm ball joint mounting hole 15, and a lower rear control arm ball joint mounting hole 16. The upper control arm ball joint mounting hole 11 is located to the upper left of the flange mounting hole 13, at approximately a 9° angle; the steering arm ball joint mounting hole 14 is located to the upper right of the flange mounting hole 13, at approximately a 5° angle; the lower front control arm ball joint mounting hole 15 is located directly below and slightly to the right of the flange mounting hole 13, at approximately a 10° angle; and the lower rear control arm ball joint mounting hole 16 is located directly below and slightly to the left of the flange mounting hole 13, at approximately a 35° angle.

[0022] The lower control arm weight reduction recess 17, as described above Figure 1 As shown, it is located slightly to the right of the flange mounting hole 13, at an angle of approximately 10°.

[0023] The drainage trough 18, as described above Figure 1 As shown, it is located directly below flange mounting hole 13.

[0024] The W-shaped reinforcing rib 12, as described above Figure 1As shown, located approximately 9° to the left of the flange mounting hole 13, the W-shaped reinforcing rib and the edge sidewall of the gooseneck form four equilateral triangles extending from the flange mounting hole to the upper control arm ball pin mounting hole. The four triangles share a side in sequence. The side length of the equilateral triangle is 45mm, the wall thickness is 4.3mm, and the height is 51mm. The sides of the triangles are smoothly transitioned by chamfers with a radius of 4-6mm.

[0025] The ABS mounting hole 21, as described Figure 2 As shown, it is located slightly to the left of the flange mounting hole 13, at an angle of approximately 40°.

[0026] For double wishbone steering knuckles, the design of W-shaped reinforcing ribs can effectively ensure the strength and NVH of the aluminum alloy steering knuckle while minimizing its weight, thus achieving a balance between lightweighting and structural performance. Example

[0027] There has been a long-standing desire in the field to achieve a balance between lightweighting and structural performance by designing appropriate reinforcing ribs at the gooseneck, while ensuring the strength and NVH of the aluminum alloy steering knuckle.

[0028] Comparing the design of the present invention in Example 1 with that of the traditional thick structure without W-shaped reinforcing ribs, under the premise of ensuring the same structural performance, the traditional thick structure weighs 5.65 kg, while Example 1 weighs 5.3 kg, resulting in a weight reduction of 350 g and a weight reduction effect of 6.2%.

[0029] Compared to the thick and bulky gooseneck structure, this utility model has a W-shaped reinforcing rib structure near the flange mounting hole 13 and the upper control arm ball pin mounting hole 11. The W-shaped reinforcing rib and the edge sidewall of the gooseneck form four equilateral triangles. The triangular structure has stability, so it can achieve the effect of lightweight while ensuring performance.

[0030] Previously, the gooseneck section of double wishbone steering knuckles was often a large, integral structure. This could not effectively ensure the strength and NVH of the aluminum alloy steering knuckle while minimizing its weight, thus achieving a balance between lightweighting and structural performance. The W-shaped reinforcing rib is a novel design invention. Through steering knuckle simulation analysis, the strain distribution parameters of the product were obtained. The results show that while reducing the overall weight, it meets the requirements of assembly, structural strength, NVH, and fatigue performance, thereby achieving a balance between weight and structural performance.

[0031] Various performance tests were conducted on the steering knuckle in Example 1 at the testing center, including NVH, strength, fatigue tests, and vehicle strength and fatigue tests. The tests showed that the steering knuckle meets the customer's component testing standards and the customer's vehicle testing standards.

[0032] In summary, this utility model provides a motor vehicle aluminum alloy steering knuckle with reinforcing ribs, which achieves a reduction in steering knuckle weight while providing excellent NVH performance.

[0033] As is known from common technical knowledge, this utility model can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A motor vehicle aluminum alloy steering knuckle with reinforcing ribs, characterized in that, It includes a steering knuckle body and a W-shaped reinforcing rib; the steering knuckle body includes a gooseneck, and the W-shaped reinforcing rib is disposed at the gooseneck. The steering knuckle body is provided with a flange mounting hole; an upper control arm ball pin mounting hole is provided to the upper left of the flange mounting hole. The W-shaped reinforcing rib is located above the flange mounting hole. The W-shaped reinforcing rib and the edge sidewall of the gooseneck form four equilateral triangles in the direction from the flange mounting hole to the upper control arm ball pin mounting hole. The four triangles share a side in turn.

2. The automotive aluminum alloy steering knuckle with reinforcing ribs as described in claim 1, characterized in that, The W-shaped reinforcing rib and the edge sidewall at the gooseneck form four equilateral triangles in the direction from the flange mounting hole to the upper control arm ball pin mounting hole. The W-shaped reinforcing rib has a wall thickness of 4.3mm and a height of 51mm, and the side length of each equilateral triangle is 45mm.

3. A motor vehicle aluminum alloy steering knuckle with reinforcing ribs as described in claim 1, characterized in that, The flange mounting hole is surrounded by bolt mounting holes, including flange bolt mounting holes and brake caliper bolt mounting holes; The flange bolt mounting holes are arranged in an equilateral triangle around the flange mounting holes, with each equilateral triangle having a side length of 97mm. The brake caliper bolt mounting holes are located to the right of the flange mounting holes.

4. A motor vehicle aluminum alloy steering knuckle with reinforcing ribs as described in claim 1, characterized in that, The four equilateral triangles formed by the W-shaped reinforcing rib and the edge sidewall at the gooseneck are smoothly transitioned between each other by a chamfer with a radius of 4-6mm.

5. A motor vehicle aluminum alloy steering knuckle with reinforcing ribs as described in claim 1, characterized in that, It also includes ball pin mounting holes for steering arms, lower front control arms, and lower rear control arms. The ball joint mounting hole of the steering arm is located to the upper right of the flange mounting hole, the ball joint mounting hole of the lower front control arm is located directly below and slightly to the right of the flange mounting hole, and the ball joint mounting hole of the lower rear control arm is located directly below and slightly to the left of the flange mounting hole.

6. A motor vehicle aluminum alloy steering knuckle with reinforcing ribs as described in claim 1, characterized in that, It also includes a lower control arm weight reduction recess, which is located slightly to the right of the flange mounting hole.

7. A motor vehicle aluminum alloy steering knuckle with reinforcing ribs as described in claim 1, characterized in that, It also includes a drainage channel, which is located directly below the flange mounting hole.

8. A motor vehicle aluminum alloy steering knuckle with reinforcing ribs as described in claim 1, characterized in that, It also includes ABS mounting holes, which are located slightly to the left of the flange mounting holes.

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