CN216580675U

CN216580675U - Assembly structure of steering column handle adjusting mechanism cam and radial soft limit

Info

Publication number: CN216580675U
Application number: CN202122388491.XU
Authority: CN
Inventors: 王佳良; 郭学霞; 高丹; 郝佳伟; 赵振川
Original assignee: Bosch Huayu Steering Systems Yantai Co Ltd
Current assignee: Bosch Huayu Steering Systems Yantai Co Ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-05-24
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to the technical field of electric power steering systems, in particular to an assembling structure of a steering column handle adjusting mechanism cam and a radial soft limit, which comprises the radial soft limit and a cam, wherein an inner ring of the radial soft limit and a boss outer ring of the cam are of a candy-shaped structure, the inner ring of the radial soft limit is in interference fit with the boss outer ring of the cam, the radial soft limit and the cam are arranged in a bracket groove of a U-shaped bracket, and the outer ring of the radial soft limit is in clearance fit with the bracket groove of the U-shaped bracket. Compared with the prior art, the utility model designs the structure of the cam and the radial soft limit, and increases the contact surface area of the cam boss and the radial soft limit, thereby reducing the contact stress of the radial soft limit, avoiding the risk of deformation and even fracture of the radial soft limit due to stress concentration, saving the cost and ensuring the smoothness of the handle operation.

Description

Assembly structure of steering column handle adjusting mechanism cam and radial soft limit

Technical Field

The utility model relates to the technical field of electric power-assisted steering systems, in particular to an assembly structure of a steering column handle adjusting mechanism cam and a radial soft limit.

Background

In an automobile steering system, the adjustment of an electric power steering column is realized by opening and closing a handle adjusting structure. When the handle adjusting structure is opened, the steering column can be axially and radially adjusted; when the handle adjusting structure is locked, the steering column can not be adjusted.

In the process of radial adjustment of the steering column, in order to avoid metal friction abnormal sound generated by relative sliding of the cam and the U-shaped bracket groove, plastic radial soft limit is required to be added between the cam and the bracket groove. The plastic soft limit can convert the friction between metals into the friction between the metals and the plastic parts. However, due to the problems of working environment and structural design, the intermetallic plastic soft limit has large deformation and even fracture after being adjusted for durability, so that the operating space of the handle is affected, the problem of adjustment clamping stagnation occurs, and even the plastic soft limit interferes with other parts of the whole vehicle.

Therefore, an assembly structure of a steering column handle adjusting mechanism cam and a radial soft limit is required to be designed so as to reduce the deformation and fracture of the soft limit under stress and avoid influencing the operation of the handle.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides an assembly structure of a steering column handle adjusting mechanism cam and a radial soft limit, so that the situations of deformation and fracture of the soft limit under stress are reduced, and the handle operation is prevented from being influenced.

In order to achieve the purpose, the utility model provides an assembling structure of a steering column handle adjusting mechanism cam and a radial soft limit, which comprises the radial soft limit and the cam, wherein an inner ring of the radial soft limit and a boss outer ring of the cam are of a candy-shaped structure, the radial soft limit inner ring is in interference fit with the boss outer ring of the cam, the radial soft limit and the cam are arranged in a support groove of a U-shaped support, and the radial soft limit outer ring is in clearance fit with the support groove of the U-shaped support.

The back of the cam is connected with the handle.

The radial soft limit comprises a nylon main body and rubber gaskets, and the rubber gaskets are arranged at the upper end and the lower end of the nylon main body.

The candy-shaped structure is a closed structure consisting of horizontal lines, vertical lines and folding lines, the horizontal lines are arranged at the upper end and the lower end, the vertical lines are arranged at the left end and the right end, and the horizontal lines and the vertical lines are connected by the folding lines.

Compared with the prior art, the utility model designs the structure of the cam and the radial soft limit, and increases the contact surface area of the cam boss and the radial soft limit, thereby reducing the contact stress of the radial soft limit, avoiding the risk of deformation and even fracture of the radial soft limit due to stress concentration, saving the cost and ensuring the smoothness of the handle operation.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the radial soft limit of the present invention.

Fig. 3 is a schematic structural view of the cam of the present invention.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings.

Referring to fig. 1, the utility model provides an assembly structure of a steering column handle adjusting mechanism cam and a radial soft limit, which comprises the radial soft limit and the cam, wherein an inner ring of the radial soft limit 1 and a boss outer ring of the cam 2 are of candy-shaped structures, the inner ring of the radial soft limit 1 is in interference fit with the boss outer ring of the cam 2, the radial soft limit 1 and the cam 2 are arranged in a support groove of a U-shaped support 3, the outer ring of the radial soft limit 1 is in clearance fit with the support groove of the U-shaped support 3, and the back of the cam 2 is connected with a handle 4.

Referring to fig. 2, radial soft spacing 1 includes nylon main part 9, rubber gasket 8, and the upper and lower both ends of nylon main part 9 are provided with rubber gasket 8, provide cushioning effect, guarantee the in-process of tubular column radial regulation, and radial soft spacing 1 can not produce the noise with the support groove striking.

Referring to fig. 2 and 3, the candy-like structure is a closed structure consisting of a horizontal line 5, a vertical line 6 and a folding line 7, wherein the horizontal line 5 is arranged at the upper end and the lower end, the vertical line 6 is arranged at the left end and the right end, and the horizontal line 5 is connected with the vertical line 6 by the folding line 7. The closed structure formed by the horizontal line 5, the vertical line 6 and the folding line 7 further increases the contact area between the radial soft limit 1 and the cam 2, and can better avoid the risk that the radial soft limit deforms or even breaks due to stress concentration.

When the pipe column radial adjusting device works, after the handle 4 is opened, the pipe column is smooth and free of friction noise in the radial adjusting process; radial soft spacing 1 is in handle 4 locking in-process, and the boss of cam 2 is big with radial soft spacing 1 contact surface to reduce the stress that radial soft spacing 1 bore in the very big degree, can reduce radial soft spacing deformation or even cracked risk, practiced thrift the cost, also guaranteed the smoothness nature of handle operation.

Claims

1. The utility model provides a steering column handle adjustment mechanism cam and radial soft spacing assembly structure, includes radial soft spacing, cam, its characterized in that: the inner circle of radial soft spacing (1), the boss outer lane of cam (2) are candy column structure, and radial soft spacing (1) inner circle and the boss outer lane interference fit of cam (2), radial soft spacing (1), cam (2) are installed in the support inslot of U type support (3), the outer lane of radial soft spacing (1) and the support groove clearance fit of U type support (3), candy column structure be by the enclosed construction that water flat line (5), perpendicular line (6), broken line (7) are constituteed, water flat line (5) set up both ends from top to bottom, both ends about perpendicular line (6) set up, adopt broken line (7) to be connected between water flat line (5) and perpendicular line (6).

2. The assembly structure of a steering column handle adjustment mechanism cam and a radial soft limit according to claim 1, characterized in that: the back of the cam (2) is connected with a handle (4).

3. The assembly structure of a steering column handle adjustment mechanism cam and a radial soft limit according to claim 1, characterized in that: radial soft spacing (1) include nylon main part (9), rubber gasket (8), the upper and lower both ends of nylon main part (9) are provided with rubber gasket (8).