Integrated steering knuckle of commercial vehicle

Abstract

The utility model discloses a commercial vehicle integrated type steering knuckle which comprises a steering knuckle body, a first brake arm is arranged on one side of the steering knuckle body, a brake shoe rotating pin hole is formed in the end, away from the steering knuckle body, of the first brake arm, and a second brake arm is arranged on the other side of the steering knuckle body. A cam shaft hole is formed in the end, away from the steering knuckle body, of the second brake arm, and the first brake arm, the second brake arm and the steering knuckle body are integrally formed. The brake shoe rotating pin hole and the cam shaft hole are directly connected with the steering knuckle body through the brake arm, a brake bottom plate in the traditional technology is replaced, the brake bottom plate in the traditional technology is omitted, the assembly procedure of a front axle system is reduced, the weight is greatly reduced, the development trend of light weight of commercial vehicles is met, the assembly efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steering shaft manufacturing materials, in particular to an integrated steering knuckle for a commercial vehicle. Background Art

[0002] In recent years, with the implementation of overloading control and weight-based charging, how to increase cargo capacity and reduce operating costs has become a key research topic in the domestic truck freight industry. For the domestic truck industry, as an effective means of energy saving, truck lightweight technology has gradually become an important research topic for the development of the truck industry. At present, the traditional truck steering system uses bolts to connect the steering knuckle and the brake base plate. The steering knuckle material is mostly forged steel, with high manufacturing cost and requires assembly, which does not meet the market demand for cost reduction, efficiency improvement, energy conservation and emission reduction. In the existing technology, the steering system uses a traditional steering knuckle body and a traditional brake base plate to connect with a number of bolts, but this connection method requires a large number of parts, and the assembly process is complex, and the processing and assembly accuracy is low. These factors have led to a reduction in the product performance of the steering shaft and an increase in the comprehensive cost of the existing structure. On the other hand, since the steering knuckle and the brake base plate are connected by bolts, when the connecting bolts age and fail, the brake base plate will be relatively displaced, thereby causing brake failure and affecting driving safety. Therefore, it is necessary to design a commercial vehicle integrated steering knuckle to improve the above problems. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an integrated steering knuckle for commercial vehicles to solve the deficiencies in the background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A commercial vehicle integrated steering knuckle comprises a steering knuckle body, a first brake arm is arranged on one side of the steering knuckle body, a brake shoe pivot pin hole is formed at one end of the first brake arm away from the steering knuckle body, a second brake arm is arranged on the other side of the steering knuckle body, a camshaft hole is formed at one end of the second brake arm away from the steering knuckle body, and the first brake arm and the second brake arm are integrally formed with the steering knuckle body.

[0006] Preferably, first reinforcing ribs are provided on both sides of the first brake arm along the length direction, and the first reinforcing ribs extend along the steering knuckle body toward the brake shoe pivot pin hole.

[0007] Preferably, second reinforcing ribs are provided on both sides of the second brake arm along the length direction, and the two reinforcing ribs extend along the steering knuckle body toward the camshaft hole.

[0008] Preferably, the integrally formed structure of the first brake arm, the second brake arm and the steering knuckle body is made of cast iron.

[0009] Preferably, the steering knuckle body, the first brake arm and the second brake arm are structurally optimized using bionics lightweight design principles.

[0010] Preferably, a shaft head is provided on the back side of the steering knuckle body.

[0011] Preferably, a lower kingpin hole is opened at the bottom of the front end of the steering knuckle body, an upper kingpin hole is opened at the top of the front end of the steering knuckle body, the lower kingpin hole is coaxially arranged with the upper kingpin hole, a cavity is opened at the front end of the steering knuckle body between the lower kingpin hole and the upper kingpin hole, and the lower kingpin hole and the upper kingpin hole are connected to the cavity.

[0012] Preferably, knuckle arm connecting bosses are provided on both sides of the lower kingpin hole and on the knuckle body, and trapezoidal arm connecting holes are provided on the knuckle body at the front and rear ends of the upper kingpin hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The utility model forms a first brake arm and a second brake arm integrally with the steering knuckle body, directly connects the brake shoe pivot pin hole and the camshaft hole with the steering knuckle body through the brake arm, replaces the brake base plate in the traditional technology, eliminates the brake base plate in the traditional technology, reduces the assembly process of the front axle system, greatly reduces the weight, conforms to the development trend of lightweight commercial vehicles, improves assembly efficiency, and reduces production costs.

[0015] (2) The steering knuckle body, the first brake arm and the second brake arm of the utility model are structurally optimized using the bionics lightweight design principle. With the help of topological optimization and finite element analysis, the material of the high-load and high-fatigue parts of the parts is strengthened, and the material of the low-load parts is reduced as much as possible without sacrificing the manufacturability and practicality of the parts. The weight of the optimized product is reduced, and the functional and usage requirements of the product are also met, thereby achieving the purpose of reducing vehicle weight, saving fuel, and reducing energy and emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the integrated steering knuckle of a commercial vehicle;

[0017] Figure 2 This is a schematic diagram of the main structure of the integrated steering knuckle for commercial vehicles;

[0018] Figure 3 This is a schematic diagram of the integrated steering knuckle structure of a commercial vehicle from a bottom-up perspective.

[0019] In the figure: 1, steering knuckle body; 11, lower kingpin hole; 12, upper kingpin hole; 13, steering knuckle arm connecting boss; 14, trapezoidal arm connecting hole; 15, cavity; 2, first brake arm; 3, brake shoe turnpin hole; 4, second brake arm; 5, camshaft hole; 6, shaft head. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] Example:

[0022] See also Figure 1-Figure 3 The present embodiment provides an integrated steering knuckle for commercial vehicles, comprising a steering knuckle body 1, a first brake arm 2 is arranged on one side of the steering knuckle body 1, a brake shoe swivel pin hole 3 is opened at one end of the first brake arm 2 away from the steering knuckle body 1, a second brake arm 4 is arranged on the other side of the steering knuckle body 1, a camshaft hole 5 is opened at one end of the second brake arm 4 away from the steering knuckle body 1, the first brake arm 2 and the second brake arm 4 are integrally formed with the steering knuckle body 1, and the first brake arm 2 and the second brake arm 4 are integrated with the steering knuckle body 1 by designing the first brake arm 2 and the second brake arm 4 to be integrated with the steering knuckle body 1, and the brake shoe swivel pin hole 3 and the camshaft hole 5 are directly connected to the steering knuckle body 1 through the brake arm, thereby replacing the brake base plate in the traditional technology, canceling the brake base plate in the traditional technology, reducing the assembly process of the front axle system, greatly reducing the weight, conforming to the development trend of lightweight commercial vehicles, improving assembly efficiency, and reducing production costs.

[0023] In the present embodiment, the integrally formed structure of the first brake arm 2, the second brake arm 4 and the steering knuckle body 1 is made of cast iron, and the integrated design includes but is not limited to casting or forging. Compared with the existing commercial vehicle steering knuckle made of forged steel, the density of forged steel is greater than that of cast iron. Therefore, the present application is made of cast iron, the weight of the steering knuckle is reduced, and lightweight is further achieved; the steering knuckle body 1, the first brake arm 2 and the second brake arm 4 are structurally optimized using the bionic lightweight design principle, so that the product can be lightweight while meeting its use requirements and having a better castability, so that the casting process is simplified, thereby improving the casting productivity of the product, reducing the waste of resources, achieving energy conservation and emission reduction, and reducing the production cost of the product. With the help of topological optimization and finite element analysis, the material of the high-load and high-fatigue part of the part is strengthened, and the material of the low-load part is reduced as much as possible without losing the manufacturability and practicality of the part, so that the weight of the optimized product is reduced, and the function and use requirements of the product are also met, thereby achieving the purpose of reducing vehicle weight, saving fuel and saving energy and reducing emissions.

[0024] In this embodiment, if Figure 1 and Figure 2 As shown, the first brake arm 2 is provided with first reinforcing ribs on both sides along the length direction, and the first reinforcing ribs extend along the steering knuckle body 1 toward the brake shoe pin hole 3. The second brake arm 4 is provided with second reinforcing ribs on both sides along the length direction, and the two reinforcing ribs extend along the steering knuckle body 1 toward the camshaft hole 5. The structural strength of the first brake arm 2 and the second brake arm 4 is improved by the first reinforcing ribs and the second reinforcing ribs, and the steering knuckle structure has better integrity and is not easy to deform.

[0025] In this embodiment, a shaft head 6 is provided on the back of the steering knuckle body 1. The shaft head 6 can be integrally formed with the steering knuckle body 1, welded and fixed or connected in other ways. The shaft head 6 is used to support the wheel hub assembly.

[0026] In this embodiment, if Figure 1 and Figure 2 As shown, a lower kingpin hole 11 is provided at the bottom of the front end of the steering knuckle body 1, and an upper kingpin hole 12 is provided at the top of the front end of the steering knuckle body 1. The lower kingpin hole 11 is coaxially arranged with the upper kingpin hole 12. A cavity 15 is provided at the front end of the steering knuckle body 1 between the lower kingpin hole 11 and the upper kingpin hole 12. The lower kingpin hole 11 and the upper kingpin hole 12 are communicated with the cavity 15. The weight of the steering knuckle body 1 can be reduced through the cavity 15. While ensuring the rigidity, the material cost can be saved and the lightweight can be improved. The split design of the upper kingpin hole 12 and the lower kingpin hole 11 has better installation stability than the traditional single-body kingpin hole.

[0027] In this embodiment, if Figure 1As shown, knuckle arm connecting bosses 13 are provided on the knuckle body 1 on both sides of the lower kingpin hole 11, and trapezoidal arm connecting holes 14 are provided on the knuckle body 1 at the front and rear ends of the upper kingpin hole 12. The knuckle arm is connected via the knuckle arm connecting bosses 13, and the steering trapezoidal arm is connected via the trapezoidal arm connecting hole 14.

[0028] In summary, the integrated steering knuckle for commercial vehicles proposed in this embodiment is designed to be integrated with the steering knuckle body 1 through the first brake arm 2 and the second brake arm 4, and the brake shoe pin hole 3 and the camshaft hole 5 are directly connected to the steering knuckle body 1 through the brake arm, replacing the brake base plate in the traditional technology, eliminating the brake base plate in the traditional technology, reducing the assembly process of the front axle system, greatly reducing the weight, conforming to the development trend of lightweight commercial vehicles, improving assembly efficiency, and reducing production costs.

[0029] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A commercial vehicle integrated steering knuckle, comprising a steering knuckle body (1), characterized in that: A first brake arm (2) is provided on one side of the steering knuckle body (1); a brake shoe pivot pin hole (3) is provided at one end of the first brake arm (2) away from the steering knuckle body (1); a second brake arm (4) is provided on the other side of the steering knuckle body (1); a camshaft hole (5) is provided at one end of the second brake arm (4) away from the steering knuckle body (1); the first brake arm (2) and the second brake arm (4) are integrally formed with the steering knuckle body (1).

2. The integrated steering knuckle for commercial vehicles according to claim 1, characterized in that: The first brake arm (2) is provided with first reinforcing ribs on both sides along the length direction, and the first reinforcing ribs extend along the steering knuckle body (1) towards the brake shoe pivot pin hole (3).

3. The integrated steering knuckle for commercial vehicles according to claim 1, characterized in that: Second reinforcing ribs are provided on both sides of the second brake arm (4) along the length direction, and the two reinforcing ribs extend along the steering knuckle body (1) towards the camshaft hole (5).

4. The integrated steering knuckle for commercial vehicles according to claim 1, characterized in that: The integrally formed structure of the first brake arm (2), the second brake arm (4) and the steering knuckle body (1) is made of cast iron.

5. The integrated steering knuckle for commercial vehicles according to claim 1, characterized in that: The steering knuckle body (1), the first brake arm (2) and the second brake arm (4) are structurally optimized using the bionics lightweight design principle.

6. The integrated steering knuckle for commercial vehicles according to claim 1, characterized in that: The back side of the steering knuckle body (1) is provided with a shaft head (6).

7. The integrated steering knuckle for commercial vehicles according to claim 1, characterized in that: A lower kingpin hole (11) is provided at the bottom of the front end of the steering knuckle body (1), and an upper kingpin hole (12) is provided at the top of the front end of the steering knuckle body (1). The lower kingpin hole (11) and the upper kingpin hole (12) are coaxially arranged. A cavity (15) is provided at the front end of the steering knuckle body (1) between the lower kingpin hole (11) and the upper kingpin hole (12), and the lower kingpin hole (11) and the upper kingpin hole (12) are in communication with the cavity (15).

8. The integrated steering knuckle for commercial vehicles according to claim 7, characterized in that: Steering knuckle arm connecting bosses (13) are provided on both sides of the lower kingpin hole (11) and on the steering knuckle body (1), and trapezoidal arm connecting holes (14) are provided on the steering knuckle body (1) at the front and rear ends of the upper kingpin hole (12).

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