High-toughness automobile knuckle fork

Abstract

This utility model relates to the field of automotive steering knuckle technology and discloses a high-toughness automotive steering knuckle fork, including a steering knuckle fork body assembly and a hub connection assembly. The steering knuckle fork body assembly includes a steering knuckle fork body, with multiple hollow triangular reinforcing ribs at both ends. A swing arm connecting part is fixedly connected to one side of the bottom end of the steering knuckle fork body, and swing arm mounting holes are formed between the two side walls of the swing arm connecting part. This utility model effectively disperses the complex stress borne by the component by setting multiple hollow triangular reinforcing ribs in an array at both ends of the steering knuckle fork body, significantly improving the structural toughness of the steering knuckle fork. It can withstand the combined stress of steering and load-bearing for a long time, avoiding deformation and cracking, extending service life, and ensuring driving safety.

Description

Technical Field

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

[0002] The automotive steering knuckle fork is a core component of the automotive steering system, needing to withstand both steering torque and vehicle load. Existing high-toughness automotive steering knuckle forks still have the following problems in use: 1. Some steering knuckle forks have insufficient structural reinforcement design, resulting in poor toughness. Under long-term complex stress, they are prone to deformation and cracking, reducing service life and affecting driving safety; 2. The assembly structure design between various components is not reasonable enough, resulting in poor compatibility with the control arm, body, and wheel hub, low assembly efficiency, and insufficient overall structural stability after assembly. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a high-toughness automotive steering knuckle fork, featuring a high-toughness structure with hollowed-out triangular reinforcing ribs and a multi-component precisely matched assembly structure, thus solving the problems of insufficient toughness leading to easy deformation and poor assembly adaptability mentioned in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-toughness automotive steering knuckle fork, comprising a steering knuckle fork body assembly and a wheel hub connection assembly.

[0005] The steering knuckle fork main body assembly includes a steering knuckle fork body. Multiple hollowed-out triangular reinforcing ribs are provided at both ends of the steering knuckle fork body. These ribs are arrayed in non-stress areas, improving toughness while reducing component weight. A swing arm connecting part is fixedly connected to one side of the bottom end of the steering knuckle fork body. A swing arm mounting hole is provided between the two side walls of the swing arm connecting part for assembly with a vehicle swing arm. A body mounting part is fixedly connected to the other side of the bottom end of the steering knuckle fork body. A body mounting hole is provided between the two side walls of the body mounting part for connection with body components. A bearing mounting cavity is provided between the upper and lower side walls in the middle of the steering knuckle fork body. A connecting ear is fixedly connected to the front end of the steering knuckle fork body. The connecting ear has symmetrically arranged connecting holes for assembly with other transmission components.

[0006] The hub connection assembly includes a bearing, a shaft, and a hub mounting seat. The bearing is installed in the bearing mounting cavity, and the shaft is sleeved inside the bearing. Four locating pin holes are formed at equal angles on the lower outer side wall of the shaft for installing locating pins to achieve circumferential positioning of the shaft. The hub mounting seat is fixedly connected to the top of the shaft. A first connecting protrusion and a second connecting protrusion are fixedly connected on the outer side of the hub mounting seat from bottom to top. The first connecting protrusion has four first mounting holes at equal angles, and the second connecting protrusion has five second mounting holes at equal angles. Through the engagement of the mounting holes with the connecting holes of the steering knuckle fork body, a stable connection between the hub connection assembly and the steering knuckle fork body is achieved.

[0007] As a further improvement of this utility model: a bearing separator ring is provided at the center of the bearing mounting cavity, and sealing ring grooves are provided at the upper and lower ends of the bearing mounting cavity. The bearing separator ring is used to axially limit the bearing, and the sealing ring grooves are used to install seals, thereby improving the sealing performance and service life of the bearing.

[0008] As a further improvement of this utility model: the bearing consists of two bearings separated by a bearing separator ring and two sealing ring grooves. The dual bearing design enhances the structural stability and rotational accuracy during steering.

[0009] As a further improvement of this utility model, multiple hollow triangular reinforcing ribs are arranged in an array in the non-stressed area of ​​the steering knuckle fork body, effectively dispersing stress and significantly improving the structural toughness of the steering knuckle fork.

[0010] As a further improvement of this utility model, the bearing and the bearing mounting cavity are interference fit to ensure the structural stability of the bearing after assembly and to avoid relative movement.

[0011] As a further improvement of this utility model, the first connecting protrusion, the second connecting protrusion and the steering knuckle fork body are connected by fixed welding. The welding connection ensures the structural strength of the connection part and improves the stability of the overall assembly.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, by setting multiple hollow triangular reinforcing ribs arranged in an array at both ends of the steering knuckle fork body, the complex stress borne by the component is effectively dispersed, the structural toughness of the steering knuckle fork is greatly improved, and it can resist the combined stress of steering and load-bearing for a long time, avoiding deformation and cracking, extending service life, and ensuring driving safety.

[0013] 2. In this utility model, by designing a precise fitting structure between the first connecting protrusion, the second connecting protrusion and the connecting ear of the steering knuckle fork body, as well as the reasonable layout of the swing arm connection part and the body mounting part, the assembly compatibility with components such as the swing arm, body, and wheel hub is improved, which facilitates quick and accurate installation. At the same time, the design of welding connection and interference fit ensures the high stability of the overall structure after assembly. Attached Figure Description

[0014] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ; Figure 2 The overall three-dimensional structure of this utility model Figure 2 ; Figure 3 This is a perspective view of the main body component of the steering knuckle fork of this utility model; Figure 4 This is a perspective view of the wheel hub connection assembly of this utility model.

[0015] In the diagram: 1. Steering knuckle fork main body assembly; 2. Wheel hub connection assembly; 11. Steering knuckle fork main body; 12. Bearing mounting cavity; 13. Bearing separator ring; 14. Sealing ring groove; 15. Connecting lug; 16. Connecting hole; 17. Hollowed-out triangular reinforcing rib; 18. Swing arm connection part; 19. Swing arm mounting hole; 110. Body mounting part; 111. Body mounting hole; 21. Bearing; 22. Shaft; 23. Locating pin hole; 24. Wheel hub mounting seat; 25. First connecting protrusion; 26. First assembly hole; 27. Second connecting protrusion; 28. Second assembly hole. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0017] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and 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 of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Please see Figures 1-4 In this embodiment of the present invention, a high-toughness automotive steering knuckle fork includes a steering knuckle fork body assembly 1 and a wheel hub connection assembly 2.

[0020] The steering knuckle fork main body assembly 1 includes a steering knuckle fork body 11. Multiple hollow triangular reinforcing ribs 17 are provided at both ends of the steering knuckle fork body 11. These ribs are arranged in an array in the non-stressed areas of the steering knuckle fork body 11, significantly improving its structural toughness and resistance to deformation without increasing its weight. A swing arm connecting part 18 is fixedly connected to one side of the bottom end of the steering knuckle fork body 11. Swing arm mounting holes 19 are provided between the two side walls of the swing arm connecting part 18 for inserting fasteners, achieving a secure assembly between the swing arm connecting part 18 and the vehicle's swing arm. A body mounting part 110 is fixedly connected to the other side of the bottom end of the body 11. A body mounting hole 111 is opened between the two side walls of the body mounting part 110. The body mounting hole 111 is adapted to the corresponding mounting position of the body. The precise connection between the body mounting part 110 and the body component is achieved by fasteners. A bearing mounting cavity 12 is opened between the upper and lower side walls of the middle part of the steering knuckle fork body 11. The bearing mounting cavity 12 provides installation space for the bearing 21. A connecting ear 15 is fixedly connected to the front end of the steering knuckle fork body 11. A connecting hole 16 is symmetrically opened on the connecting ear 15. The connecting hole 16 is used to align with the assembly holes of other transmission components. A detachable connection is achieved by fasteners.

[0021] The hub connection assembly 2 includes a bearing 21, a shaft 22, and a hub mounting base 24. The bearing 21 is installed in the bearing mounting cavity 12, and the bearing 21 and the bearing mounting cavity 12 are interference-fitted to ensure the structural stability of the bearing 21 after assembly. The shaft 22 is sleeved in the bearing 21, and the shaft 22 can rotate flexibly relative to the steering knuckle fork body 11 through the bearing 21. Four locating pin holes 23 are opened at equal angles on the lower outer wall of the shaft 22. The locating pin holes 23 are used to install locating pins to achieve circumferential positioning of the shaft 22 and the bearing 21 and prevent relative rotation. Hub mounting... The seat 24 is fixedly connected to the top of the shaft 22. The wheel hub mounting seat 24 is used to support and connect the car wheel hub. The outer side of the wheel hub mounting seat 24 is fixedly connected with a first connecting protrusion 25 and a second connecting protrusion 27 from bottom to top. The first connecting protrusion 25 has four first mounting holes 26 at equal angles. The second connecting protrusion 27 has five second mounting holes 28 at equal angles. The first mounting holes 26 and the second mounting holes 28 correspond to the connecting holes 16 of the connecting ear 15, respectively. The wheel hub connecting assembly 2 and the steering knuckle fork main body assembly 1 are securely assembled by fasteners.

[0022] A bearing partition ring 13 is provided at the center of the bearing mounting cavity 12. The bearing partition ring 13 and the steering knuckle fork body 11 are integrally formed. Sealing ring grooves 14 are provided at the upper and lower ends of the bearing mounting cavity 12. The sealing ring grooves 14 are used to install seals to prevent dust and moisture from entering the bearing mounting cavity 12 and protect the bearing 21 from corrosion.

[0023] There are two bearings 21, which are separated by bearing separator ring 13 and two sealing ring grooves 14. The design of double bearings 21 can distribute the load transmitted by the shaft 22, improve the structural stability and rotation accuracy during steering, and extend the service life of the wheel hub connection assembly 2.

[0024] Multiple hollow triangular reinforcing ribs 17 are integrally formed with the steering knuckle fork body 11. The array distribution design can evenly disperse the complex stress borne by the steering knuckle fork body 11 and avoid the risk of cracking caused by local stress concentration.

[0025] The first connecting protrusion 25, the second connecting protrusion 27 and the wheel hub mounting seat 24 are integrally formed structures, and their height and thickness are adapted to the installation requirements of the connecting ear 15 to ensure balanced force after connection.

[0026] The first connecting protrusion 25 and the second connecting protrusion 27 are connected to the steering knuckle fork body 11 by fixed welding. Welding can enhance the structural strength of the connection part, prevent loosening after assembly, and improve the stability of the overall structure.

[0027] The working principle of this utility model is as follows: During assembly, the bearing 21 is interference-fitted into the bearing mounting cavity 12, the bearing separator ring 13 axially limits the two bearings 21, and the sealing ring groove 14 installs a seal to ensure the sealing of the bearing 21; the shaft 22 is sleeved into the bearing 21, and the locating pin is installed through the locating pin hole 23 to achieve circumferential positioning of the shaft 22; the first connecting protrusion 25 and the second connecting protrusion 27 of the wheel hub mounting seat 24 are aligned with the connecting lug 15 of the steering knuckle fork body 11, and a stable connection is achieved by fasteners passing through the first mounting hole 26, the second mounting hole 28 and the connecting hole 16; then the swing arm connecting part 18 is connected to the car swing arm through the swing arm mounting hole 19, and the body mounting part 110 is connected to the body component through the body mounting hole 111. When the vehicle turns, the shaft 22 rotates relative to the steering knuckle fork body 11 through the bearing 21 to achieve steering. The hollow triangular reinforcing rib 17 effectively disperses stress, improves structural toughness, and ensures long-term stability and safety.

[0028] 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 high-toughness automotive steering knuckle fork, comprising a steering knuckle fork body assembly (1) and a hub connection assembly (2), characterized in that: The steering knuckle fork body assembly (1) includes a steering knuckle fork body (11), with multiple hollow triangular reinforcing ribs (17) at both ends of the steering knuckle fork body (11); a swing arm connecting part (18) is fixedly connected to one side of the bottom end of the steering knuckle fork body (11), and a swing arm mounting hole (19) is opened between the two side walls of the swing arm connecting part (18); a vehicle body mounting part (110) is fixedly connected to the other side of the bottom end of the steering knuckle fork body (11), and a vehicle body mounting hole (111) is opened between the two side walls of the vehicle body mounting part (110); a bearing mounting cavity (12) is opened between the upper and lower side walls of the middle part of the steering knuckle fork body (11), and a connecting ear (15) is fixedly connected to the front end of the steering knuckle fork body (11), and a connecting hole (16) is symmetrically opened on the connecting ear (15); The hub connection assembly (2) includes a bearing (21), a shaft (22), and a hub mounting seat (24). The bearing (21) is installed in the bearing mounting cavity (12), and the shaft (22) is sleeved in the bearing (21). Four positioning pin holes (23) are opened at equal angles on the lower side of the outer wall of the shaft (22). The hub mounting seat (24) is fixedly connected to the top of the shaft (22). A first connecting protrusion (25) and a second connecting protrusion (27) are fixedly connected on the outer side of the hub mounting seat (24) from bottom to top. Four first mounting holes (26) are opened at equal angles on the first connecting protrusion (25), and five second mounting holes (28) are opened at equal angles on the second connecting protrusion (27).

2. The high-toughness automotive steering knuckle fork according to claim 1, characterized in that: A bearing partition ring (13) is provided at the center of the bearing mounting cavity (12), and sealing ring grooves (14) are provided at the upper and lower ends of the bearing mounting cavity (12).

3. The high-toughness automotive steering knuckle fork according to claim 1, characterized in that: The bearings (21) are two and are separated from the two sealing ring grooves (14) by bearing separator rings (13).

4. The high-toughness automotive steering knuckle fork according to claim 1, characterized in that: Multiple hollow triangular reinforcing ribs (17) are arranged in an array in the non-stressed area of ​​the steering knuckle fork body (11).

5. A high-toughness automotive steering knuckle fork according to claim 1, characterized in that: The bearing (21) and the bearing mounting cavity (12) are interference fit.

6. The high-toughness automotive steering knuckle fork according to claim 1, characterized in that: The first connecting protrusion (25), the second connecting protrusion (27) and the steering knuckle fork body (11) are connected by fixed welding.

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