CN210911930U

CN210911930U - Suspension buffer block

Info

Publication number: CN210911930U
Application number: CN201920878331.3U
Authority: CN
Inventors: 司先军; 姜海波; 蔡京亚; 吴罡
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-07-03
Anticipated expiration: 2029-06-12

Abstract

The utility model provides a suspension buffer block, including the shock attenuation cover, the cross-sectional shape that the lumen of shock attenuation cover has first protruding circle to constitute the lumen along the pipe length direction interval arrangement is the corrugate, is equipped with the bulge loop that circumference was arranged on the trough of shock attenuation cover lumen wall. The contact area between the wall of the damping sleeve cavity and the piston rod is reduced by arranging the damping sleeve cavity into a corrugated shape, and meanwhile, the inner wall of the damping sleeve cavity is provided with the convex rings arranged in the circumferential direction, so that the contact area between the inner wall of the damping sleeve cavity and the piston rod is further reduced, and the strong abnormal sound generated by friction between the buffer block and the piston rod when the buffer block is compressed is effectively reduced.

Description

Suspension buffer block

Technical Field

The utility model relates to an automotive suspension system technical field, concretely relates to suspension buffer block.

Background

The suspension is a general name of all force transmission connecting devices between a frame and wheels of an automobile, and the automobile suspension structure comprises an elastic element, a shock absorber, a guide mechanism and the like, and the three parts respectively play roles in buffering, damping and force transmission. In the running process of an automobile, in order to reduce the impact of a suspension system on a frame caused by wheel jumping, a suspension buffer block is sleeved at the upper end of a piston rod of a suspension shock absorber so as to play a role in buffering and damping between the suspension shock absorber and an automobile body and play a role in limiting the maximum stroke of the suspension. The existing suspension buffer block can generate strong abnormal sound due to friction with a piston rod in the compression process, and the driving experience is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a suspension buffer block reduces the produced abnormal sound of compressed in-process.

In order to achieve the above object, the utility model provides a suspension buffer block, including the shock attenuation cover, the cross-sectional shape that the lumen of shock attenuation cover has first protruding circle to constitute the lumen along the pipe length direction interval arrangement is the corrugate, is equipped with the bulge loop that circumference was arranged on the trough of shock attenuation cover lumen wall.

Compared with the prior art, the utility model discloses there are following technological effect: the contact area between the wall of the damping sleeve cavity and the piston rod is reduced by arranging the damping sleeve cavity into a corrugated shape, and meanwhile, the inner wall of the damping sleeve cavity is provided with the convex rings arranged in the circumferential direction, so that the contact area between the inner wall of the damping sleeve cavity and the piston rod is further reduced, and the strong abnormal sound generated by friction between the buffer block and the piston rod when the buffer block is compressed is effectively reduced.

Drawings

FIG. 1 is a schematic structural view of a conventional suspension bump stop;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

fig. 5 is a sectional view of the present invention in an assembled state.

Detailed Description

The present invention will be further explained with reference to fig. 1 to 5;

the utility model provides a suspension buffer block, includes shock attenuation cover 10, and the cross-sectional shape that the lumen of shock attenuation cover 10 has first protruding circle 11 to constitute the lumen along the long direction interval arrangement of pipe is the corrugate, is equipped with the bulge loop 12 that circumference was arranged on the trough of shock attenuation cover 10 lumen wall. The contact area between the wall of the tube cavity of the damping sleeve 10 and the piston rod is reduced by arranging the tube cavity of the damping sleeve 10 into a corrugated shape, and meanwhile, the convex rings 12 which are circumferentially arranged are arranged on the inner wall of the tube cavity of the damping sleeve 10, so that the contact area between the inner wall of the tube cavity of the damping sleeve and the piston rod is further reduced, and the strong abnormal sound generated by friction between the buffer block and the piston rod when the buffer block is compressed is effectively reduced.

Preferably, the outer pipe wall of the damping sleeve 10 is provided with second convex rings 13 at intervals along the pipe length direction to form a corrugated cross section shape of the outer pipe wall, and the wave crest positions on the outer pipe wall of the damping sleeve 10 are staggered with the wave trough positions on the inner pipe wall in the axial direction.

Furthermore, a plurality of circles of salient points 14 are arranged on the wave crest of the tube cavity wall of the damping sleeve 10 along the circumferential direction. The contact area of the cavity wall of the damping sleeve 10 and the piston rod is further reduced by arranging the salient points 14.

Furthermore, a circumferentially arranged rib 15 is arranged on the upper end surface of the shock-absorbing sleeve 10. Damping sleeve 10 is close to preceding strut top support frame for the upper end under assembled state, can collide with preceding strut top support when damping sleeve 10 is compressed, in order to alleviate the impact that damping sleeve 10 supported on to preceding strut, sets up to have elastic protruding muscle 15 and does the buffering.

Claims

1. A suspension buffer block comprises a shock absorption sleeve (10), and is characterized in that: the cross-sectional shape that the lumen of shock attenuation cover (10) has first protruding circle (11) to constitute the lumen along the tube length direction interval arrangement is the corrugate, is equipped with protruding ring (12) that circumference was arranged on the trough of shock attenuation cover (10) lumen wall, and the outer pipe wall of shock attenuation cover (10) has second protruding circle (13) to constitute the cross-sectional shape of outer pipe wall along the tube length direction interval arrangement and is the corrugate, the wave crest position on the outer pipe wall of shock attenuation cover (10) and the trough position on the inner pipe wall dislocation in the axial direction.

2. The suspension bump stop of claim 1, wherein: salient points (14) are arranged on the wave crests of the wall of the tube cavity of the damping sleeve (10) along the circumferential direction.

3. The suspension bump stop of claim 1, wherein: the upper end face of the shock absorption sleeve (10) is provided with a convex rib (15) which is circumferentially arranged.