CN215861482U

CN215861482U - Bottom cover of automobile shock absorber

Info

Publication number: CN215861482U
Application number: CN202122223652.XU
Authority: CN
Inventors: 郝镜
Original assignee: Burcomb Auto Parts Systems Suzhou Co ltd
Current assignee: Burcomb Auto Parts Systems Suzhou Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-02-18
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses an automobile shock absorber bottom cover which comprises a bottom cover body and a pull rod fixed with the bottom cover body, wherein an inclined surface used for abutting against a bottom valve is formed on the inner side of the bottom cover body, the inclined surface extends to the tail end of the bottom cover body, and a flat surface used for being fixed with an outer oil cylinder is formed on the outer side of the tail end of the bottom cover body. According to the utility model, the traditional integrated structure is replaced by welding and fixing the bottom cover body and the pull rod, so that the processing cost is reduced by welding; the bottom valve is in contact with the inclined plane, so that the bottom valve and the bottom cover body are positioned and installed conveniently, and the bottom valve after installation is not prone to inclination.

Description

Bottom cover of automobile shock absorber

Technical Field

The utility model relates to the field of shock absorbers, in particular to a bottom cover of an automobile shock absorber.

Background

With the further development of commercial vehicle technology, the market demands for the economy and reliability of the vibration damper are further improved. Conventional commercial vehicle damper bottom caps have failed to meet this requirement. As shown in fig. 1, the conventional shock absorber bottom cover for commercial vehicle has the following problems:

1. the bottom cover 10 is integrally machined by a turning process, so that the machining cost is high.

2. The bottom valve 20 is in plane contact positioning with the bottom cover 10, the positioning method has high requirements on the flatness and the smoothness of a contact plane, the bottom valve is processed by a die, and the flatness can be ensured; the bottom cover is a turning process, flatness cannot be guaranteed, the bottom valve is likely to incline, and finally the shock absorber is blocked and fails.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems of high processing cost and difficult assembly of the existing bottom cover, and provides a bottom cover of an automobile shock absorber.

In order to achieve the purpose, the utility model adopts the following technical scheme: the bottom cover of the automobile shock absorber comprises a bottom cover body and a pull rod fixed with the bottom cover body, wherein an inclined surface used for abutting against a bottom valve is formed on the inner side of the bottom cover body, the inclined surface extends to the tail end of the bottom cover body, and a flat surface used for being fixed with an outer oil cylinder is formed on the outer side of the tail end of the bottom cover body.

The bottom cover body and the pull rod are fixedly welded.

The inclined plane has an inclination angle of 30-50 degrees relative to the axis of the bottom cover body.

The bottom cover body comprises a straight bottom, a first inclined part, a straight part and a second inclined part, wherein the first inclined part is bent and inclined towards the direction far away from the pull rod from the bottom, the straight part is connected with the first inclined part, the second inclined part is bent and inclined towards the direction far away from the pull rod from the straight part, and the inclined plane is arranged on the inner wall of the second inclined part.

The length of the first inclined part is smaller than that of the second inclined part, and the inclination degree of the inner wall of the first inclined part is consistent with that of the inclined surface.

The straight surface of the bottom cover body is fixedly welded with the inner wall of the outer oil cylinder.

In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that: the traditional integrated structure is replaced by welding and fixing the bottom cover body and the pull rod, the welding strength is not lower than 100KN, the connection strength of the bottom cover body and the pull rod is ensured, and meanwhile, the processing cost is reduced; the bottom valve is in contact with the inclined plane, so that the bottom valve and the bottom cover body are positioned and installed conveniently, and the bottom valve after installation is not prone to inclination.

Drawings

FIG. 1 is a schematic view of a prior art bottom cover structure of an automotive shock absorber;

FIG. 2 is a schematic structural view of a bottom cover of the shock absorber for an automobile according to the present invention;

FIG. 3 is a schematic view of the assembly structure of the bottom cover and the bottom valve of the shock absorber of FIG. 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 2 and 3, the utility model is an automobile shock absorber bottom cover, which comprises a bottom cover body 1 and a pull rod 2 fixed with the bottom cover body 1, wherein the bottom cover body 1 is used for being assembled and fixed with an outer oil cylinder 3, and specifically, the bottom cover body 1 is welded and fixed with the outer oil cylinder 3.

Under this embodiment, welded fastening between bottom body 1 and the pull rod 2 to replace traditional integral type structure, bottom body 1 adopts stamping process to process, and the cost is cheaper, and the surface finish is far higher than car processing, and pull rod 2 structure is simpler, adopts normal car processing technology can, so set up, reduces the processing cost. In addition, the welding strength between the bottom cover body 1 and the pull rod 2 is not lower than 100KN, and the connection strength of the bottom cover body and the pull rod is guaranteed. In other embodiments, the bottom cover body 1 and the pull rod 2 may be fixed by riveting, bolting, or the like.

Referring to fig. 2, an inclined surface 11 for abutting against the bottom valve 4 is formed on the inner side of the bottom cover body 1, the inclined surface 11 extends to the end of the bottom cover body 1, a flat surface 12 for fixing with the outer oil cylinder 3 is formed on the outer side of the end of the bottom cover body 1, and specifically, the flat surface 12 of the bottom cover body 1 is welded and fixed with the inner wall of the outer oil cylinder 3.

In this embodiment, the inclined angle of the inclined plane 11 relative to the axis of the bottom cover body 1 is 30-50 °, preferably 45 °, the inclined plane 11 makes the bottom cover body 1 form a horn-shaped mounting opening 13, the bottom valve 4 is in contact with the inclined plane 11, so that the bottom valve 4 and the bottom cover body 1 are conveniently positioned and mounted, and the bottom valve 4 after being mounted is not prone to inclination.

Referring to fig. 2, the bottom cap body 1 includes a flat bottom 14, a first inclined portion 15 bending and inclining from the bottom 14 to a direction away from the pull rod 2, a flat portion 16 connected to the first inclined portion 15, and a second inclined portion 17 bending and inclining from the flat portion 16 to a direction away from the pull rod 2, the inclined surface 11 is disposed on an inner wall of the second inclined portion 17, and the pull rod 2 is welded and fixed to the bottom 14.

In this embodiment, the length of the first inclined portion 15 is smaller than the length of the second inclined portion 17, and the degree of inclination of the inner wall of the first inclined portion 15 coincides with the degree of inclination of the inclined surface 11.

When the product is processed: the bottom cover body 1 and the pull rod 2 are fixedly welded together, the coaxiality of the outer circle of the bottom cover body 1 and the outer circle of the pull rod 2 is guaranteed, and then the flat surface 12 of the bottom cover body 1 and the inner wall of the outer oil cylinder 3 are welded and fixed.

According to the utility model, the traditional integrated structure is replaced by welding and fixing the bottom cover body 1 and the pull rod 2, the welding strength is not lower than 100KN, the connection strength of the bottom cover body and the pull rod is ensured, and the processing cost is reduced; the bottom valve 4 is in contact with the inclined plane 11, so that the bottom valve 4 and the bottom cover body 1 are positioned and installed conveniently, and the bottom valve 4 after installation is not prone to inclination.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides an automobile shock absorber bottom which characterized in that: the oil cylinder bottom cover comprises a bottom cover body (1) and a pull rod (2) fixed with the bottom cover body (1), wherein an inclined plane (11) used for being abutted to a bottom valve (4) is formed on the inner side of the bottom cover body (1), the inclined plane (11) extends to the tail end of the bottom cover body (1), and a straight plane (12) used for being fixed with an outer oil cylinder (3) is formed on the outer side of the tail end of the bottom cover body (1).

2. The automotive shock absorber bottom cover as set forth in claim 1, wherein: the bottom cover body (1) and the pull rod (2) are fixedly welded.

3. The automotive shock absorber bottom cover as set forth in claim 1, wherein: the inclined plane (11) has an inclination angle of 30-50 degrees relative to the axis of the bottom cover body (1).

4. The automotive shock absorber bottom cover as set forth in claim 1, wherein: bottom body (1) include straight bottom (14), certainly bottom (14) to keeping away from pull rod (2) direction first slope portion (15) of slope of buckling, with straight portion (16) that first slope portion (15) are connected and certainly straight portion (16) are to keeping away from pull rod (2) direction second slope portion (17) of slope of buckling, inclined plane (11) set up second slope portion (17) inner wall.

5. The vehicle shock absorber bottom cover as set forth in claim 4, wherein: the length of the first inclined part (15) is smaller than that of the second inclined part (17), and the inclination degree of the inner wall of the first inclined part (15) is consistent with that of the inclined surface (11).

6. The automotive shock absorber bottom cover as set forth in claim 1, wherein: and the straight surface (12) of the bottom cover body (1) is fixedly welded with the inner wall of the outer oil cylinder (3).