Automobile steering arm

Abstract

The utility model discloses an automobile steering arm, which relates to the technical field of automobile parts and comprises a main arm and an auxiliary arm which are integrally formed. The main arm is in a disc shape, the upper surface of the main arm is provided with an arc-shaped protruding installation face protruding upwards and provided with an installation hole, the middle of the main arm is provided with a first installation hole matched with a control arm shaft head, and the back face of the main arm is provided with a structural groove clamped with a control arm protrusion. The auxiliary arm is of a U-shaped double-fork-arm structure, reinforcing ribs perpendicular to each other are arranged in the middle of the auxiliary arm, a plurality of mounting bosses with second mounting holes are symmetrically arranged in the auxiliary arm, and a square positioning protrusion matched with the square groove of the steering gear shaft body is arranged at the bottom end of the auxiliary arm. By means of the design, the strength and rigidity of the steering arm are enhanced, the mounting adaptability of the steering arm and other parts is improved, and the stability and driving safety of an automobile steering system are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an automotive steering arm. Background Technology

[0002] Currently, the most commonly used automotive steering arms on the market are straight-arm steering arms (such as the automotive steering arm mechanism disclosed in CN209426847U). This type of straight-arm steering arm has a relatively simple structure, usually consisting of a straight rod, and can meet basic steering function requirements to a certain extent. However, with the continuous advancement of automotive technology and the increasing demands of consumers for automotive performance, straight-arm steering arms have gradually revealed some obvious limitations.

[0003] From a mechanical performance perspective, straight-arm steering arms, due to their structural characteristics, exhibit relatively uneven force distribution when subjected to the complex forces generated during steering, making them prone to stress concentration. During vehicle operation, especially under complex conditions such as high-speed driving, sharp turns, or traversing bumpy roads, the steering arm needs to withstand significant bending moments, torques, and impact forces. When facing these complex stress conditions, the strength and stiffness of straight-arm steering arms often fail to meet requirements, making them susceptible to deformation or even fracture, thus severely impacting the vehicle's handling stability and driving safety. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automotive steering arm that solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an automobile steering arm, including a main arm and a secondary arm, wherein the main arm and the secondary arm are integral, the main arm is a disc-shaped structure, and the secondary arm is a "U"-shaped double fork arm structure, wherein a reinforcing rib is integrally connected in the middle of the "U"-shaped double fork arm structure, and the reinforcing rib is perpendicular to the secondary arm.

[0006] Furthermore, the upper surface of the main arm is provided with a raised mounting surface, which is an upwardly convex arc-shaped surface structure, and a number of mounting holes are opened around the circumference of the raised mounting surface.

[0007] Furthermore, a first mounting hole is provided in the middle of the main arm to connect the control arm shaft head, and the first mounting hole is adapted to the concave surface of the control arm shaft head.

[0008] Furthermore, a structural groove is formed on the back of the main arm, which engages with the protrusion of the control arm to improve assembly strength.

[0009] Furthermore, the interior of the auxiliary arm is symmetrically connected with several mounting bosses, which are located on the same vertical line and protrude in opposite directions. Each mounting boss has a second mounting hole inside.

[0010] Furthermore, the bottom end of the auxiliary arm is connected to several positioning protrusions, each of which is square and matches the square groove on the steering gear shaft.

[0011] This invention provides an automotive steering arm. Compared with the prior art, it has the following advantages:

[0012] This automotive steering arm features a disc-shaped main arm and a "U"-shaped double-wishbone auxiliary arm design. Compared to traditional straight-arm steering arms, the disc-shaped main arm provides a larger mounting surface with a more reasonable force distribution. Combined with the unique structure of the "U"-shaped double-wishbone auxiliary arm, it significantly enhances the overall strength and rigidity of the steering arm. This allows it to effectively disperse stress, reduce stress concentration, and lower the risk of deformation and fracture when subjected to complex and varied steering forces, bending moments, and impacts during vehicle operation. Consequently, it greatly improves the stability and reliability of the automotive steering system, ensuring vehicle driving safety. Attached Figure Description

[0013] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0014] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0015] Figure 3 This is a front view of the present invention.

[0016] In the diagram: 1. Main arm; 11. Raised mounting surface; 12. First mounting hole; 13. Structural groove; 2. Secondary arm; 21. Reinforcing rib; 22. Mounting boss; 23. Second mounting hole; 24. Positioning protrusion. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3This utility model provides a technical solution: an automotive steering arm, mainly comprising a main arm 1 and a secondary arm 2, wherein the main arm 1 and the secondary arm 2 are integrally formed by casting. This integral design helps to improve the overall strength and stability of the steering arm and reduce safety hazards caused by loosening of the connection parts.

[0019] The main boom 1 has a disc-shaped structure, which provides a large mounting surface and good force distribution, which is conducive to evenly transmitting steering force to the control boom axle.

[0020] The upper surface of the main arm 1 is provided with a raised mounting surface 11. The raised mounting surface 11 is an arc-shaped structure that bulges upward. Several mounting holes are evenly opened around the circumference of the raised mounting surface 11. These mounting holes are used to connect and fix the steering arm and the control arm to ensure the stable installation of the steering arm during vehicle operation.

[0021] A first mounting hole 12 is opened in the middle of the main arm 1. The size and shape of the first mounting hole 12 are carefully designed to perfectly match the shaft head of the control arm. The specific matching relationship is as follows: the inner diameter, shape and other parameters of the first mounting hole 12 match the outer diameter and shape of the shaft head of the control arm, so that the shaft head of the control arm can be accurately and stably inserted into the first mounting hole 12 to achieve a reliable connection.

[0022] Meanwhile, a structural groove 13 is formed on the back of the main arm 1. The shape and size of the structural groove 13 engage with the protrusion on the control arm. When the control arm shaft head is inserted into the first mounting hole 12, its protrusion engages in the structural groove 13. This engaging design greatly improves the assembly strength and effectively prevents the control arm and steering arm from loosening or relative displacement due to vibration or other reasons during vehicle operation, thus ensuring the stability and safety of the steering system.

[0023] The auxiliary boom 2 adopts a "U"-shaped double wishbone structure, which has good mechanical properties and can withstand large steering forces and bending moments. A reinforcing rib 21 is integrally connected to the middle of the "U"-shaped double wishbone structure. The reinforcing rib 21 is perpendicular to the auxiliary boom 2. The addition of the reinforcing rib 21 further enhances the strength and rigidity of the auxiliary boom 2, making it less prone to deformation or damage under complex stress, thus improving the overall reliability and service life of the steering arm.

[0024] The auxiliary arm 2 has several symmetrically connected mounting bosses 22, which are distributed according to a certain symmetrical pattern to improve the stability and balance of the installation. The mounting bosses 22 located on the same vertical line protrude in opposite directions, a design that allows for better cooperation with related components during installation. Each mounting boss 22 has a second mounting hole 23 inside, used to install other steering system-related components, such as steering tie rods, ensuring that all components of the steering system can be accurately and securely connected together.

[0025] The bottom end of the auxiliary arm 2 is connected to several positioning protrusions 24, each of which is square. These positioning protrusions 24 are adapted to the square grooves on the steering gear shaft. During installation, the positioning protrusions 24 are accurately inserted into the square grooves on the steering gear shaft, which can quickly and accurately achieve the positioning and installation of the steering arm and the steering gear, improve assembly efficiency and installation accuracy, and avoid steering system failures caused by installation deviations.

Claims

1. A type of automotive steering arm, characterized in that, It includes a main arm (1) and a secondary arm (2), the main arm (1) and the secondary arm (2) are a whole, the main arm (1) is a disc-shaped structure, and the secondary arm (2) is a "U"-shaped double fork arm structure. A reinforcing rib (21) is integrally connected in the middle of the "U"-shaped double fork arm structure, and the reinforcing rib (21) and the secondary arm (2) are perpendicular to each other.

2. The automotive steering arm according to claim 1, characterized in that, The upper surface of the main arm (1) is provided with a raised mounting surface (11), which is an upwardly raised arc-shaped surface structure, and a number of mounting holes are opened around the raised mounting surface (11).

3. The automotive steering arm according to claim 1, characterized in that, The main arm (1) has a first mounting hole (12) in the middle to connect the shaft head of the control arm, and the first mounting hole (12) is adapted to the concave surface of the shaft head of the control arm.

4. The automotive steering arm according to claim 1, characterized in that, A structural groove (13) is provided on the back of the main arm (1), and the structural groove (13) engages with the protrusion of the control arm to improve the assembly strength.

5. The automotive steering arm according to claim 1, characterized in that, The inner side of the auxiliary arm (2) is symmetrically connected with several mounting bosses (22). The mounting bosses (22) located on the same vertical line protrude in opposite directions. Each mounting boss (22) has a second mounting hole (23) inside.

6. The automotive steering arm according to claim 1, characterized in that, The bottom end of the auxiliary arm (2) is connected to several positioning protrusions (24), each positioning protrusion (24) is square and is adapted to the square groove on the steering gear shaft.

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