Macpherson front steering knuckle of sleeve type structure
By designing a sleeve-type MacPherson front steering knuckle, the problem of insufficient stiffness and stability at the connection point was solved, achieving higher stiffness and stability, improving vehicle handling and driving stability, and reducing manufacturing costs and space occupation.
Patent Information
- Application Number
- CN202423245487.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The existing MacPherson front steering knuckle has insufficient stiffness and stability at the connection point, which affects vehicle handling and driving stability.
The MacPherson front steering knuckle features a sleeve-type structure, with the shock absorber strut directly connected to the steering knuckle body via a sleeve. Limiting steps and bolted mounting lugs enhance rigidity and stability, while the hollow design achieves lightweighting.
It improves the vehicle's stiffness and stability when subjected to lateral and torsional forces, enhances handling and driving stability, while reducing manufacturing costs and space requirements, and facilitating maintenance.
Smart Images
Figure CN223494583U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of MacPherson front steering knuckle technology, and in particular to a sleeve-type MacPherson front steering knuckle. Background Technology
[0002] The MacPherson strut front steering knuckle is a widely used front suspension system in modern automobiles, offering advantages such as simple structure, low cost, ease of maintenance, and small footprint. Currently, most MacPherson struts are connected to the shock absorber strut via a U-shaped clamp. However, this connection lacks sufficient stiffness and stability when subjected to lateral and torsional forces, affecting vehicle handling and driving stability. Therefore, it is necessary to optimize the structure of the existing MacPherson strut front steering knuckle to address these shortcomings. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a sleeve-type MacPherson front steering knuckle. The upper part of the steering knuckle is designed with a sleeve structure. During assembly, the shock absorber strut is inserted into the sleeve and directly connected to the steering knuckle body to make up for the shortcomings of insufficient rigidity and stability at the connection.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a sleeve-type MacPherson front steering knuckle is provided, including a steering knuckle body. Multiple brake caliper bracket mounting holes are provided on one side of the front of the steering knuckle body, and a steering tie rod mounting hole is provided on the other side of the front of the steering knuckle body. A wheel hub bearing mounting hole and a wheel hub bearing bolt mounting hole are provided in the middle of the steering knuckle body. A sleeve-type structure is provided on the upper side of the front of the steering knuckle body. The inner hole of the sleeve-type structure is a shock absorber strut mounting hole. A contraction groove communicating with the shock absorber strut mounting hole and two bolt mounting lugs provided on both sides of the contraction groove are provided at the upper end of the sleeve-type structure. A limit step is provided at the port of the shock absorber strut mounting hole near the wheel hub bearing mounting hole.
[0005] As a supplement to the technical solution described in this utility model, there are three wheel hub bearing bolt mounting holes, and the three wheel hub bearing bolt mounting holes are evenly arranged around the wheel hub bearing mounting hole with an interval angle of 120°, making the arrangement compact, the structure small, and the space occupied small.
[0006] As a supplement to the technical solution described in this utility model, the steering knuckle body has a boot-shaped structure.
[0007] As a supplement to the technical solution described in this utility model, the steering knuckle body is provided with two reinforcing ribs below the sleeve structure. One end of the reinforcing rib is connected to the wheel hub bearing mounting hole to improve the structural strength. Multiple wiring harness bracket mounting holes are provided on one side of the reinforcing rib.
[0008] As a supplement to the technical solution described in this utility model, a wheel speed sensor mounting hole is provided on the steering knuckle body between the steering tie rod mounting hole and the shock absorber strut mounting hole.
[0009] As a supplement to the technical solution described in this utility model, a drainage hole is provided below the wheel hub bearing mounting hole.
[0010] As a supplement to the technical solution described in this utility model, a noise reduction groove is provided on the lower end face of the steering knuckle body around the wheel hub bearing mounting hole.
[0011] As a supplement to the technical solution described in this utility model, the caliper bracket has two mounting holes.
[0012] As a supplement to the technical solution described in this utility model, the bottom surface of the steering knuckle body is provided with mudguard mounting holes.
[0013] Beneficial effects: This utility model relates to a sleeve-type MacPherson front steering knuckle, whose connection with the shock absorber is designed as a sleeve-type structure with slots. During assembly, the shock absorber strut is inserted into the sleeve-type structure and directly connected to the steering knuckle body. Two bolt mounting lugs are locked at the top with bolts. Compared with the traditional U-shaped clamp connection, its stiffness and stability are greatly improved when subjected to lateral and torsional forces, resulting in better vehicle handling and driving stability. The limiting step inside the sleeve-type structure can quickly position and confirm whether the shock absorber strut is installed correctly, improving assembly efficiency. Three wheel hub bearing bolt mounting holes are evenly arranged around the wheel hub bearing mounting holes at 120° intervals. The three-point arrangement of wheel hub bearing bolt mounting holes makes the structure more compact and smaller, facilitating production and reducing costs. The lower part of the sleeve-type structure can also be hollowed out, with only two reinforcing ribs extending out to connect to the steering knuckle body, ensuring strength while achieving lightweight. Secondly, its relatively simple structure helps reduce manufacturing costs and facilitates later maintenance and repair. At the same time, its compact structural design can effectively save space under the vehicle, which is beneficial for the arrangement of other suspension components. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a top view of the present invention;
[0016] Figure 3 This is the left view of this utility model;
[0017] Figure 4 This is a bottom view of the present invention;
[0018] Figure 5 This is a structural diagram of the present invention after all components are installed.
[0019] Illustration: 1. Steering knuckle body; 2. Brake caliper bracket mounting hole; 3. Wheel hub bearing mounting hole; 4. Wheel hub bearing bolt mounting hole; 5. Steering tie rod mounting hole; 6. Lower control arm mounting hole; 7. Shock absorber strut mounting hole; 8. Limit step; 9. Bolt mounting lug; 10. Shock absorber strut; 11. Wheel speed sensor mounting hole; 12. Wiring harness bracket mounting hole; 13. Mudguard mounting hole; 14. Reinforcing rib; 15. Drain hole; 16. Noise reduction groove; 17. Shock absorber strut; 18. Brake caliper bracket; 19. Steering tie rod; 20. Lower control arm; 21. Wheel hub bearing; 22. Mudguard. Detailed Implementation
[0020] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.
[0021] The embodiments of this utility model relate to a sleeve-type MacPherson front steering knuckle, such as... Figure 1-5 As shown, the steering knuckle body 1 is provided with a sleeve-type structure on the upper part of the steering knuckle body 1. The inner hole of the sleeve-type structure is a shock absorber support mounting hole 7. A limit step 8 is provided at the port of the shock absorber support mounting hole 7 near the wheel hub bearing mounting hole 3. A bolt mounting lug 9 for locking and a shrink groove 10 for shrinking when locking are provided on the upper part of the sleeve-type structure.
[0022] The steering knuckle body 1 is provided with two reinforcing ribs 14 below the sleeve structure. One end of the reinforcing rib 14 is connected to the wheel hub bearing mounting hole 3 to improve the structural strength. Multiple wire harness bracket mounting holes 12 are opened on one side of the reinforcing rib 14.
[0023] This invention replaces the traditional U-shaped clamp connection with a sleeve-type structure at the connection point with the shock absorber. The shock absorber strut 17 is directly connected to the steering knuckle body 1, which greatly improves its stiffness and stability when subjected to lateral and torsional forces, resulting in better vehicle handling and driving stability. The lower part of the sleeve-type structure can also be hollowed out, with only two reinforcing ribs 14 extending out to connect to the steering knuckle body 1, ensuring strength while achieving weight reduction. During assembly, simply insert the shock absorber strut 17 into the shock absorber strut mounting hole 7. The limiting step 8 can quickly determine whether the shock absorber strut 17 is properly assembled. The two bolt mounting lugs 9 at the top are locked together with bolts. The contraction gap 10 allows the sleeve-type structure to contract. Then, the shock absorber strut 17 is firmly secured, making assembly simple and convenient.
[0024] The steering knuckle body 1 has a boot-shaped structure. Two brake caliper bracket mounting holes 2 are provided on one side of the front of the steering knuckle body 1, and a steering tie rod mounting hole 5 is provided on the other side of the front of the steering knuckle body 1. A wheel hub bearing mounting hole 3 and a wheel hub bearing bolt mounting hole 4 are provided in the middle of the steering knuckle body 1. A sleeve-type structure is provided on the upper side of the front of the steering knuckle body 1. The inner hole of the sleeve-type structure is a shock absorber support mounting hole 7. The upper end of the sleeve-type structure is provided with a contraction groove 10 communicating with the shock absorber support mounting hole 7 and two bolt mounting lugs 9 provided on both sides of the contraction groove 10. A limit step 8 is provided at the port of the shock absorber support mounting hole 7 near the wheel hub bearing mounting hole 3.
[0025] There are three wheel hub bearing bolt mounting holes 4, and the three wheel hub bearing bolt mounting holes 4 are evenly arranged around the wheel hub bearing mounting hole 3 with an interval angle of 120°, making the arrangement compact, the structure small, and the space occupied small. The three-point arrangement of wheel hub bearing bolt mounting holes 4 can make the structure more compact, the size smaller, facilitate production, and reduce costs.
[0026] A wheel speed sensor mounting hole 11 is provided on the steering knuckle body 1 between the steering tie rod mounting hole 5 and the shock absorber strut mounting hole 7. A drainage hole 15 is provided below the wheel hub bearing mounting hole 3. A noise reduction groove 16 is provided around the wheel hub bearing mounting hole 3 on the lower end face of the steering knuckle body 1. A mudguard mounting hole 13 is provided on the bottom surface of the steering knuckle body 1.
[0027] like Figure 5 The diagram shown is a schematic of the overall structure of a sleeve-type MacPherson front steering knuckle proposed in this utility model after all components are installed; including components: shock absorber strut 17, brake caliper bracket 18, steering tie rod 19, lower control arm 20, wheel hub bearing 21, and mudguard 22.
[0028] Working principle: The shock absorber support 17 is inserted into the shock absorber support mounting hole 7 of the sleeve-type structure, and is limited by the limiting step 8. It is connected to the steering knuckle body 1 through the fastening bolts and nuts and the locking bolt mounting lug 9. The brake caliper bracket 18 is connected to the steering knuckle body 1 through the fastening bolts and nuts and the two caliper bracket mounting holes 2. The steering tie rod 19 is connected to the steering knuckle body 1 through the ball pin, the fastening nut and the steering tie rod mounting hole 5. The lower control arm 20 is connected to the steering knuckle body 1 through the ball pin, the fastening nut and the lower control arm mounting hole 6. The wheel hub bearing 21 is connected to the steering knuckle body 1 through the fastening bolts and nuts, the wheel hub bearing bolt mounting hole 4 and the wheel hub bearing mounting hole 3. The mudguard 22 is connected to the steering knuckle body 1 through the screw and the mudguard mounting hole 13.
[0029] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.
[0030] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0031] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0032] The foregoing has provided a detailed description of a sleeve-type MacPherson front steering knuckle provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A sleeve-type MacPherson front steering knuckle, comprising a steering knuckle body (1), characterized in that: The steering knuckle body (1) has multiple brake caliper bracket mounting holes (2) on one side of its front face, and a steering tie rod mounting hole (5) on the other side of its front face. The steering knuckle body (1) has a wheel hub bearing mounting hole (3) and a wheel hub bearing bolt mounting hole (4) in the middle. The upper side of the steering knuckle body (1) has a sleeve structure with an inner hole for a shock absorber support mounting hole (7). The upper end of the sleeve structure has a contraction groove (10) that communicates with the shock absorber support mounting hole (7) and two bolt mounting lugs (9) on both sides of the contraction groove (10). The shock absorber support mounting hole (7) has a limit step (8) at the port near the wheel hub bearing mounting hole (3).
2. The MacPherson strut front steering knuckle with a sleeve-type structure according to claim 1, characterized in that: There are three wheel hub bearing bolt mounting holes (4), and the three wheel hub bearing bolt mounting holes (4) are evenly arranged around the wheel hub bearing mounting hole (3).
3. The MacPherson strut front steering knuckle with a sleeve-type structure according to claim 1, characterized in that: The steering knuckle body (1) has a boot-shaped structure.
4. The MacPherson strut front steering knuckle with a sleeve-type structure according to claim 1, characterized in that: The steering knuckle body (1) is provided with two reinforcing ribs (14) below the sleeve structure. One end of the reinforcing rib (14) is connected to the wheel hub bearing mounting hole (3) to improve the structural strength. Multiple wire harness bracket mounting holes (12) are provided on one side of the reinforcing rib (14).
5. The MacPherson strut front steering knuckle with a sleeve-type structure according to claim 1, characterized in that: The steering knuckle body (1) is provided with a wheel speed sensor mounting hole (11) between the steering tie rod mounting hole (5) and the shock absorber strut mounting hole (7).
6. The MacPherson strut front steering knuckle with a sleeve-type structure according to claim 1, characterized in that: A drainage hole (15) is provided below the hub bearing mounting hole (3).
7. The MacPherson strut front steering knuckle with a sleeve-type structure according to claim 1, characterized in that: The lower end face of the steering knuckle body (1) is provided with a noise reduction groove (16) around the wheel hub bearing mounting hole (3).
8. The MacPherson strut front steering knuckle with a sleeve-type structure according to claim 1, characterized in that: The number of mounting holes (2) for the caliper bracket is two.
9. A sleeve-type MacPherson front steering knuckle according to claim 1, characterized in that: The bottom surface of the steering knuckle body (1) is provided with mudguard mounting holes (13).