High-strength cast steel automobile steering knuckle

Abstract

The high-strength cast steel automobile steering knuckle comprises a steering knuckle body, a round through hole, a multi-curved-edge front arm and a protruding end, the round through hole is formed in the center of the steering knuckle body, the multi-curved-edge front arm is arranged at the upper end of the steering knuckle body, and the protruding end is arranged at the lower end of the steering knuckle body; an annular clamping groove is formed in the inner wall of the circular through hole, an annular sleeve is embedded in the annular clamping groove, the elastic gaskets are arranged at the upper end and the lower end of the annular sleeve, fixing plates are arranged between the elastic gaskets and fixedly connected with the annular sleeve, and springs and steel balls are arranged between the fixing plates. The two ends of the spring abut against the steel ball and the annular sleeve respectively, and a limiting flange is arranged on the end face of the fixing plate. The steering knuckle is simple in structure, the damping performance and the strength of the steering knuckle are enhanced through matching of the spring and the steel ball, and the service life of the steering knuckle is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to high-strength cast steel automotive steering knuckles. Background Technology

[0002] The steering knuckle is one of the main components of a car steering axle. Its shape is relatively complex, combining the structural features of four types of parts: shaft, sleeve, disc ring, and fork. It is mainly composed of three parts: support journal, flange, and fork. The function of the steering knuckle is to bear the load of the front of the car, support and drive the front wheels to rotate around the kingpin to steer the car. When the car is in motion, it bears variable impact loads, so it is required to have high strength and shock absorption performance. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a high-strength cast steel automotive steering knuckle.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a high-strength cast steel automotive steering knuckle, comprising a steering knuckle body, a circular through hole, a multi-curved forearm, and a protruding end. The circular through hole is located at the center of the steering knuckle body, the multi-curved forearm is located at the upper end of the steering knuckle body, and the protruding end is located at the lower end of the steering knuckle body. The annular groove includes an annular sleeve, an elastic washer, a fixing plate, a spring, and a steel ball. The annular groove is located on the inner wall of the circular through hole, and the annular sleeve is nested within the annular groove. The elastic washer is located at both ends of the annular sleeve, and a fixing plate is located between the elastic washer. The fixing plate is fixedly connected to the annular sleeve. A spring and a steel ball are located between the fixing plates, and both ends of the spring abut against the steel ball and the annular sleeve, respectively. A limiting stop is located on the end face of the fixing plate.

[0005] Preferably, a wear-resistant coating is provided between the annular groove and the annular sleeve, and the thickness of the wear-resistant coating is 0.5-2mm.

[0006] Preferably, a plurality of fasteners are provided between the fixing plate and the elastic gasket.

[0007] Preferably, the distance between the two fixing plates is equal to the diameter of the spring and the diameter of the steel ball.

[0008] Preferably, the sum of the length of the spring and the diameter of the steel ball is 0.5-1 cm greater than the length of the fixing plate.

[0009] Preferably, the multi-curved forearm and the protruding end are located on the vertical center line of the steering knuckle body.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model sets a spring and a steel ball in the circular through hole. When the circular through hole is engaged with the steering knuckle body, the spring and steel ball are sandwiched between two elastic washers, which can effectively improve the shock absorption performance, increase the strength of the steering knuckle, and enhance the flexibility of the steering knuckle. A wear-resistant layer is provided between the annular sleeve and the annular groove, which improves the service life of the steering knuckle. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of a high-strength cast steel automotive steering knuckle according to the present invention;

[0012] Figure 2 This is a schematic diagram of the annular groove structure of a high-strength cast steel automotive steering knuckle according to the present invention;

[0013] Labeling explanation: 1-Steering knuckle body; 2-Circular through hole; 201-Annular groove; 202-Annular sleeve; 203-Elastic washer; 204-Fixing plate; 205-Fixing component; 206-Spring; 207-Limiting stop; 208-Steel ball. Detailed Implementation

[0014] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.

[0015] Please see Figure 1 A high-strength cast steel automotive steering knuckle according to an embodiment of the present invention includes a steering knuckle body 1, a circular through hole 2, a multi-curved forearm 3, and a protruding end 4. The steering knuckle body 1 has a circular through hole 2 at its center, the multi-curved forearm 3 at its upper end, and the protruding end 4 at its lower end.

[0016] like Figure 2 As shown, the inner wall of the circular through hole 2 is provided with an annular groove 201. The annular groove 201 includes an annular sleeve 202, an elastic gasket 203, a fixing plate 204, a spring 206, and a steel ball 208. The annular sleeve 202 is nested inside the annular groove 201. The elastic gasket 203 is disposed at the upper and lower ends of the annular sleeve 202. The fixing plate 204 is disposed between the elastic gaskets 203. The fixing plate 204 is fixedly connected to the annular sleeve 202. The spring 206 and the steel ball 208 are disposed between the fixing plates 204. The two ends of the spring 206 abut against the steel ball 208 and the annular sleeve 202, respectively. A limiting stop 207 is provided on the end face of the fixing plate 204.

[0017] Preferably, a wear-resistant coating is provided between the annular groove 201 and the annular sleeve 202, and the thickness of the wear-resistant coating is 0.5-2mm. The wear-resistant coating is made of tungsten carbide, which can enhance the friction between the annular groove 201 and the annular sleeve 202 and improve the service life of the steering knuckle.

[0018] Preferably, a plurality of fasteners 205 are provided between the fixing plate 204 and the elastic gasket 203. This design can fix the elastic gasket 203 to the fixing plate 204 together, preventing the elastic gasket 203 from falling off during use.

[0019] Preferably, the distance between the two fixing plates 204 is equal to the diameter of the spring 206 and the diameter of the steel ball 208. This ensures that when the spring 206 and the steel ball 208 are subjected to external force, the spring 206 moves only in the horizontal direction when compressed, preventing the spring 206 from bending during its movement.

[0020] Preferably, the sum of the length of the spring 206 and the diameter of the steel ball 208 is 0.5-1 cm greater than the length of the fixing plate 204. This design ensures that the steel ball 208 can extend beyond the length of the fixing plate 204 when the spring 206 is not subjected to external force.

[0021] Preferably, the multi-curved forearm 3 and the protruding end 4 are located on the vertical center line of the steering knuckle body 1. This design can effectively withstand the load of the front of the vehicle, has a strong load-bearing capacity, can withstand varying impact loads, and has high strength.

[0022] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-strength cast steel automotive steering knuckle, comprising a steering knuckle body (1), a circular through hole (2), a multi-curved forearm (3), and a protruding end (4), characterized in that: The steering knuckle body (1) has a circular through hole (2) at its center, the upper end of the steering knuckle body (1) has the multi-curved forearm (3), and the lower end of the steering knuckle body (1) has the protruding end (4); the inner wall of the circular through hole (2) has an annular groove (201), the annular groove (201) includes an annular sleeve (202), an elastic washer (203), a fixing plate (204), a spring (206), and a steel ball (208), and the annular sleeve (202) is nested inside the annular groove (201). The elastic gasket (203) is disposed at the upper and lower ends of the annular sleeve (202). A fixing plate (204) is provided between the elastic gaskets (203). The fixing plate (204) is fixedly connected to the annular sleeve (202). A spring (206) and a steel ball (208) are provided between the fixing plates (204). The two ends of the spring (206) abut against the steel ball (208) and the annular sleeve (202) respectively. A limiting stop (207) is provided on the end face of the fixing plate (204).

2. The high-strength cast steel automotive steering knuckle as described in claim 1, characterized in that: A wear-resistant coating is provided between the annular groove (201) and the annular sleeve (202), and the thickness of the wear-resistant coating is 0.5-2mm.

3. The high-strength cast steel automotive steering knuckle as described in claim 1, characterized in that: A plurality of fasteners (205) are provided between the fixing plate (204) and the elastic gasket (203).

4. The high-strength cast steel automotive steering knuckle as described in claim 1, characterized in that: The distance between the two fixing plates (204) is equal to the diameter of the spring (206) and the diameter of the steel ball (208).

5. The high-strength cast steel automotive steering knuckle as described in claim 1, characterized in that: The sum of the length of the spring (206) and the diameter of the steel ball (208) is 0.5-1 cm greater than the length of the fixing plate (204).

6. The high-strength cast steel automotive steering knuckle as described in claim 1, characterized in that: The multi-curved forearm (3) and the protruding end (4) are located on the vertical center line of the steering knuckle body (1).

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