Steering rocker arm

Abstract

The utility model discloses a steering rocker arm which comprises a supporting seat, a first connecting arm is arranged on the left side of the supporting seat, a first installation seat is arranged on the left side of the first connecting arm, the first installation seat is located above the supporting seat, and the first connecting arm is obliquely arranged upwards from the side close to the supporting seat to the side close to the first installation seat. A first mounting hole is formed in the first mounting seat, a second connecting arm is arranged on the right side of the supporting seat, a second mounting seat is arranged on the right side of the second connecting arm, the second mounting seat is located below the supporting seat, the second connecting arm is downwards obliquely arranged from the side close to the supporting seat to the side close to the second mounting seat, and a second mounting hole is formed in the second mounting seat. Through the arrangement of the supporting seat, the first connecting arm, the first mounting seat, the second connecting arm and the second mounting seat, the whole body is in a bending shape which is bent twice, and the bending strength is good; the pull rod and the steering gear can be connected through the first mounting hole and the second mounting hole.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive steering systems, and particularly relates to a steering arm. Background Art

[0002] In an automotive steering system, a steering arm is used to connect a steering gear and a tie rod. The steering arm can transmit the force and motion output by the steering gear to the tie rod, thereby driving the wheels to deflect and enabling the vehicle to turn. The overall steering arm should have good structural strength. The Chinese utility model patent with the authorization announcement number CN215155008U discloses a steering arm. The arm body is bent to improve the bending strength of the arm body, which is beneficial to ensuring the service life of the steering arm. The inventor found that the bending strength of the steering arm is a relatively important part of the structural strength. There is an urgent need for a steering arm with good bending strength. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a steering arm with good bending strength

[0004] To solve the above technical problem, the utility model includes a support base. A first connecting arm is provided on the left side of the support base. A first mounting seat is provided on the left side of the first connecting arm. The first mounting seat is located above the support base. The first connecting arm is inclined upward from the side close to the support base to the side close to the first mounting seat. The first mounting seat is provided with a first mounting hole. A second connecting arm is provided on the right side of the support base. A second mounting seat is provided on the right side of the second connecting arm. The second mounting seat is located below the support base. The second connecting arm is inclined downward from the side close to the support base to the side close to the second mounting seat. The second mounting seat is provided with a second mounting hole.

[0005] Further, the first mounting hole is a conical hole with a radius gradually increasing from top to bottom, and the second mounting hole is a conical spline hole with a radius gradually decreasing from top to bottom.

[0006] Further, the second mounting seat is provided with a marking line located on the top surface of the second mounting hole and extending outward.

[0007] Further, fillets are provided at the junctions of the support base and the first connecting arm, the first connecting arm and the first mounting seat, the support base and the second connecting arm, and the second connecting arm and the second mounting seat.

[0008] Further, the height of the second mounting seat is greater than the height of the first mounting seat, and the height of the first mounting seat is greater than the height of the support base.

[0009] Further, the support base, the first connecting arm, the first mounting seat, the second connecting arm, and the second mounting seat are integrally formed.

[0010] Furthermore, first machining planes are respectively provided at the top and bottom of the first mounting seat, and second machining planes are respectively provided at the top and bottom of the second mounting seat.

[0011] By providing the support seat, the first connecting arm, the first mounting seat, the second connecting arm and the second mounting seat, the whole is in a bent shape with two bends, having good bending strength; the pull rod and the steering gear can be connected through the first mounting hole and the second mounting hole. By providing the conical hole as the first mounting hole for connecting the pull rod and the conical spline hole as the second mounting hole for connecting the steering gear. By providing the identification line, the operator can conveniently align the identification line with the steering gear and then connect it to the steering gear through the second mounting hole, ensuring the operation accuracy and improving the operation efficiency. By providing the fillet, the occurrence of stress concentration is reduced and the structural strength is improved. By increasing the heights of the second mounting seat and the first mounting seat, the structural strengths of the second mounting seat and the first mounting seat are specifically improved. By providing the first machining plane and the second machining plane, a reliable support surface can be provided when machining the first mounting hole and the second mounting hole, ensuring the accuracy of the machining operation. In summary, the utility model has the advantages of reasonable structure and convenient processing. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the utility model;

[0013] Figure 2 is Figure 1 a schematic structural diagram of the cross-section along the line A-A;

[0014] In the figure: 1, support seat; 2, first connecting arm; 3, first mounting seat; 31, first mounting hole; 4, second connecting arm; 5, second mounting seat; 51, second mounting hole; 52, identification line; 6, first machining plane; 7, second machining plane. Detailed Description of the Invention

[0015] Now, the present utility model will be further described in detail with reference to the drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model. For easy understanding, Figure 2 the upper part is the upper part of the present utility model, Figure 2 the lower part is the lower part of the present utility model.

[0016] Referring to Figure 1 and Figure 2, the utility model includes a support base 1. A first connecting arm 2 is provided on the left side of the support base 1. A first mounting seat 3 is provided on the left side of the first connecting arm 2. The first mounting seat 3 is located above the support base 1. The first connecting arm 2 is arranged obliquely upward from the side close to the support base 1 to the side close to the first mounting seat 3. The first mounting seat 3 is provided with a first mounting hole 31, and the first mounting hole 31 is a conical hole with a radius gradually increasing from top to bottom. A second connecting arm 4 is provided on the right side of the support base 1. A second mounting seat 5 is provided on the right side of the second connecting arm 4. The second mounting seat 5 is located below the support base 1. The second connecting arm 4 is arranged obliquely downward from the side close to the support base 1 to the side close to the second mounting seat 5. The second mounting seat 5 is provided with a second mounting hole 51, and the second mounting hole 51 is a conical spline hole with a radius gradually decreasing from top to bottom. The second mounting seat 5 is provided with a marking line 52 located on the top surface of the second mounting hole 51 and extending outward. Fillets are provided at the junctions of the support base 1 and the first connecting arm 2, the first connecting arm 2 and the first mounting seat 3, the support base 1 and the second connecting arm 4, and the second connecting arm 4 and the second mounting seat 5. The height of the second mounting seat 5 is greater than the height of the first mounting seat 3, and the height of the first mounting seat 3 is greater than the height of the support base 1. The support base 1, the first connecting arm 2, the first mounting seat 3, the second connecting arm 4, and the second mounting seat 5 are integrally formed. The materials of the support base 1, the first connecting arm 2, the first mounting seat 3, the second connecting arm 4, and the second mounting seat 5 can be selected as 40Cr. The top and bottom of the first mounting seat 3 are respectively provided with a first machining plane 6, and the top and bottom of the second mounting seat 5 are respectively provided with a second machining plane 7.

[0017] A steering rocker arm provided by the utility model, by arranging a support base, a first connecting arm, a first mounting seat, a second connecting arm and a second mounting seat, is integrally in a bent shape with two bends, and has good bending strength; a pull rod and a steering gear can be connected through the first mounting hole and the second mounting hole. A conical hole is arranged as the first mounting hole for connecting the pull rod, and a conical spline hole is arranged as the second mounting hole for connecting the steering gear. By arranging the marking line, the operator can conveniently align the marking line with the steering gear, and then connect it to the steering gear through the second mounting hole, ensuring the operation accuracy and improving the operation efficiency. By arranging the fillets, the occurrence of stress concentration phenomenon is reduced and the structural strength is improved. By increasing the heights of the second mounting seat and the first mounting seat, the structural strengths of the second mounting seat and the first mounting seat are specifically improved. By arranging the first machining plane and the second machining plane, a reliable support surface can be provided when machining the first mounting hole and the second mounting hole, ensuring the accuracy of the machining operation. In summary, the utility model has the advantages of reasonable structure and convenient processing.

[0018] The above content is only an example and explanation of the structure of the present utility model. Those skilled in the art to which this technology pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution. As long as it does not deviate from the structure of the utility model or exceed the scope defined by the claims of this patent, it shall fall within the protection scope of the present utility model.

Claims

1. A steering rocker arm, characterized in that: It includes a support base (1). A first connecting arm (2) is provided on the left side of the support base (1). A first mounting base (3) is provided on the left side of the first connecting arm (2). The first mounting base (3) is located above the support base (1). The first connecting arm (2) is inclined upward from the side close to the support base (1) to the side close to the first mounting base (3). The first mounting base (3) is provided with a first mounting hole (31). A second connecting arm (4) is provided on the right side of the support base (1). A second mounting base (5) is provided on the right side of the second connecting arm (4). The second mounting base (5) is located below the support base (1). The second connecting arm (4) is inclined downward from the side close to the support base (1) to the side close to the second mounting base (5). The second mounting base (5) is provided with a second mounting hole (51).

2. The steering arm according to claim 1, wherein: The first mounting hole (31) is a conical hole with a radius gradually increasing from top to bottom, and the second mounting hole (51) is a conical spline hole with a radius gradually decreasing from top to bottom.

3. The steering arm according to claim 2, characterized in that: The second mounting base (5) is provided with a marking line (52) located on the top surface of the second mounting hole (51) and extending outward.

4. The steering arm according to claim 1, characterized in that: Round corners are provided at the junctions of the support base (1) and the first connecting arm (2), the first connecting arm (2) and the first mounting base (3), the support base (1) and the second connecting arm (4), and the second connecting arm (4) and the second mounting base (5).

5. The steering arm according to claim 1, characterized in that: The height of the second mounting base (5) is greater than the height of the first mounting base (3), and the height of the first mounting base (3) is greater than the height of the support base (1).

6. The steering arm according to any one of claims 1-5, characterized in that: The support base (1), the first connecting arm (2), the first mounting base (3), the second connecting arm (4) and the second mounting base (5) are integrally formed.

7. The steering arm according to claim 2, characterized in that: The top and bottom of the first mounting base (3) are respectively provided with a first machining plane (6), and the top and bottom of the second mounting base (5) are respectively provided with a second machining plane (7).

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