Novel steering column friction plate structure

Abstract

The utility model belongs to the technical field of automobile steering columns, and particularly relates to a novel steering column friction plate structure. The steering column assembly comprises a steering column, friction plate sets are symmetrically arranged on the two sides of the steering column, each friction plate set comprises three friction plates and two gaskets, and each friction plate set is provided with a first positioning hole and a second positioning hole. A first positioning column and a second positioning column which correspond to the first positioning hole and the second positioning hole in position and are matched with the first positioning hole and the second positioning hole in size are arranged on the two sides of the steering column. A friction plate and a gasket are welded into a friction plate set, and then a first positioning hole and a second positioning hole are machined in the friction plate set through a stamping process. According to the utility model, a plurality of groups of friction plate structures are arranged, so that a plurality of groups of friction pairs are formed, the friction area is increased, the friction force is improved, the dip angle holding force and the height holding force of the steering column assembly are further increased, and the requirement of large holding force of the steering column assembly is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile steering column, specifically relates to a new friction plate structure for steering column assembly. BACKGROUND

[0002] The steering system is an important component of the automobile, and the steering column assembly is a connecting component installed between the steering wheel and the steering gear, mainly used for controlling the direction of the automobile and transmitting torque.

[0003] With the development of the automobile industry, the driver has higher and higher requirements for the automobile function, and the height retention and angle retention of the steering column assembly are also improved. In order to solve the requirement of large retention, it is necessary to optimize the friction plate structure of the steering column assembly. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above problems, the utility model provides a steering column friction plate structure, which can increase the friction area and increase the friction force by using multiple friction pairs, and meet the requirement of large retention of the steering column.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme, including steering column, the two sides of the steering column are provided with a friction plate group, the friction plate group includes a plurality of friction plates and gaskets, a plurality of first positioning holes and second positioning holes are arranged on the friction plate group, and the two sides of the steering column are provided with first positioning columns and second positioning columns which are respectively corresponding to the positions of the first positioning holes and the second positioning holes and match in size.

[0006] As a preferred scheme of the utility model, the friction plate group includes three friction plates and two gaskets, and one gasket is arranged between two adjacent friction plates.

[0007] As another preferred scheme of the utility model, the two sides of the steering column are provided with a plurality of threaded holes, the friction plate group is provided with a plurality of counterbores which are corresponding to the positions of the threaded holes and match in size, the steering column and the friction plate group are connected through the threaded holes, the counterbores and the fixing screws, and the head height of the fixing screw is lower than the depth of the counterbores.

[0008] As a third preferred scheme of the utility model, the friction plate group is connected through welding a plurality of gaskets and friction plates, and the positioning holes are processed through the integral stamping process after welding.

[0009] The utility model has the beneficial effects of:

[0010] 1. The friction plate structure of the utility model adopts a plurality of friction plates to form a friction plate group, increase the friction area, improve the friction force, and meet the requirement of large retention when the steering column is locked.

[0011] 2. Multiple friction plates are welded into two sets of friction plate groups, avoiding the cumbersome procedures of separate installation and improving assembly efficiency.

[0012] 3. The positioning holes of the friction plate assembly are machined by a one-piece stamping process after welding. After stamping, the edges of the positioning holes are flush, which is easy to assemble. They are interference fit with the steering column tube without gap, reducing the vertical gap of the steering column tube. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the friction pad structure of the steering column of this utility model.

[0014] Figure 2 This is a schematic diagram of the steering column tube structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the friction plate assembly structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the fixing screw structure of this utility model.

[0017] Figure 5 This is an exploded view of the friction plate assembly structure of this utility model.

[0018] In the attached diagram, 1 is the steering column, 2 is the fixing screw, 3 is the friction plate assembly, 4 is the first positioning post, 5 is the threaded hole, 6 is the second positioning post, 7 is the first positioning hole, 8 is the countersunk hole, 9 is the second positioning hole, 10 is the gasket, and 11 is the friction plate. Detailed Implementation

[0019] The present invention adopts the following technical solution, such as Figures 1-5 As shown, the steering column includes a steering column 1, with friction pad assemblies 3 symmetrically arranged on both sides of the steering column 1. The friction pad assembly 3 includes several friction pads 11 and gaskets 10. Several first positioning holes 7 and second positioning holes 9 are provided on the friction pad assembly 3. First positioning pins 4 and second positioning pins 6 are provided on both sides of the steering column 1, which correspond to the positions of the first positioning holes 7 and the second positioning holes 9 and match their sizes. The first positioning holes 7 and the first positioning pins 4, the second positioning holes 9 and the second positioning pins 6 are all interference fits to reduce the clearance of the steering column assembly.

[0020] As a preferred embodiment of the present invention, the friction plate group 3 includes three friction plates 11 and two gaskets 10, with a gasket 10 disposed between two adjacent friction plates 11.

[0021] As another preferred scheme of the utility model, the steering column 1 is provided with a plurality of threaded holes 5 on both sides, the friction plate group 3 is provided with a plurality of counterbores 8 corresponding in position and matching in size with the threaded holes 5, the steering column 1 and the friction plate group 3 are connected through the threaded holes 5, the counterbores 8 and the fixed screws 2, and the head height of the fixed screw 2 is lower than the depth of the counterbore 8.

[0022] The fixed screw 2 is installed in the counterbore 8, so that the fixed screw 2 does not protrude the surface of the friction plate group 3, and the fixed screw 2 does not interfere with the steering column assembly when the steering column assembly changes the inclination angle and stretches.

[0023] As a third preferred scheme of the utility model, the friction plate group is connected through welding of a plurality of gaskets and friction plates, and the positioning holes are processed through integrated stamping process after welding.

[0024] Further, the friction plate group 3 is welded into one body through pressure welding technology of two gaskets 10 and three friction plates 11, to form the friction plate group 3, and the first positioning hole 7 and the second positioning hole 9 are processed through stamping after welding, so that the non-parallel phenomenon of the first positioning hole 7 and the second positioning hole 9 on each friction plate 11 and gasket 10 caused by first punching and then welding can be avoided.

[0025] The utility model provides a novel steering column friction plate structure, mainly including the friction plate group 3 welded by three friction plates 9 and two gaskets 11, and the first positioning hole 7 and the second positioning hole 9 are processed on the friction plate group 3 through stamping after welding, when the steering column assembly is assembled, first, the two friction plate groups 3 are installed in the interference fit and symmetrically on both sides of the steering column 1, and the friction plate group 3 and the steering column 1 are fixed by using the fixed screw 2, the circular gasket is assembled at the corresponding position of the arc-shaped groove at the lower end of the friction plate group 3, after the steering column assembly is installed, a plurality of friction pairs are formed, the friction area is increased, the friction force is improved, and then the inclination angle holding force and the height holding force of the steering column assembly are increased, so that the requirement of the large holding force of the steering column assembly is met.

[0026] It can be understood that the above specific description of the utility model is only used for illustrating the utility model and is not limited to the technical scheme described in the utility model embodiment, and the person skilled in the art should understand that the utility model can still be modified or replaced equivalently to achieve the same technical effect, as long as the use requirement is met, it is within the protection scope of the utility model.

Claims

1. A new type of steering column friction plate structure comprising a steering column (1), characterized in that, The friction plate group (3) is provided with a plurality of first positioning holes (7) and second positioning holes (9), and the steering column (1) is provided with a first positioning column (4) and a second positioning column (6) corresponding to the first positioning holes (7) and the second positioning holes (9) in position and size.

2. A new type of steering column friction plate structure according to claim 1, characterized in that, The friction plate group (3) includes three friction plates (11) and two gaskets (10), and one gasket (10) is arranged between two adjacent friction plates (11).

3. A new type of steering column friction plate structure according to claim 1, characterized in that, The steering column (1) is provided with a plurality of threaded holes (5) in position and size corresponding to the threaded holes (5) on the friction plate group (3), and the steering column (1) and the friction plate group (3) are connected through the threaded holes (5), the counterbores (8) and the fixing screws (2), and the head height of the fixing screws (2) is lower than the depth of the counterbores (8).

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