CN218152140U

CN218152140U - Guide seat structure and automobile shock absorber

Info

Publication number: CN218152140U
Application number: CN202222291177.4U
Authority: CN
Inventors: 何中华
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-12-27
Anticipated expiration: 2032-08-30

Abstract

The utility model belongs to the technical field of automobile shock absorber spare part production, concretely relates to guide holder structure and automobile shock absorber. Including base and guide block, the guide block fixed mounting be in on the base, first guiding hole has been seted up on the base, the second guiding hole has been seted up on the guide block, the axis coincidence of first guiding hole and second guiding hole, the hookup location department of guide block and base is provided with transition structure, base, transition structure and guide block integrated into one piece. The purpose is as follows: the problem of guide holder because receive the effect of lateral force damage in the actual working process, lead to the vehicle shock absorber to become invalid is solved. Through the transition structure of design guide holder, improve the intensity of guide holder itself to the life of extension automobile shock absorber.

Description

Guide seat structure and automobile shock absorber

Technical Field

The utility model belongs to the technical field of the production of automobile shock absorber spare part, concretely relates to guide holder structure and automobile shock absorber.

Background

The automobile shock absorber is one of important parts of a suspension system, and plays an important role in the running smoothness, safety and comfort of a vehicle. As shown in fig. 1, it is generally composed of piston rod, working cylinder, oil storage cylinder, guide seat, oil seal, piston, bottom valve and other parts. The stress direction of the mounting point of the automobile shock absorber is not coincident with the axis of the shock absorber, and the shock absorber is inevitably subjected to lateral force in actual work; the guide holder is the key part of automobile shock absorber, and the guide holder part is powder metallurgy material, and great yawing force can produce the damage to the guide holder.

As shown in fig. 2, the current guide holder structure is mostly the "convex" style of calligraphy structure, because structural factor, when powder metallurgy die-casting, the density of the transition department of the upper end of "convex" style of calligraphy guide holder, lower extreme can't be accomplished too greatly, inconsistent with upper end, lower extreme position hardness, and transition department surface quality produces defects such as sand hole easily, receiving great yawing force after, the damaged problem of fracture can appear in guide holder upper end, lower extreme transition position, lead to the vehicle shock absorber to become invalid.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at: the guide seat structure and the automobile shock absorber are used for solving the problem that the automobile shock absorber fails due to the fact that the guide seat is damaged by the action of lateral force in the actual working process. Through the transition structure of design guide holder, improve the intensity of guide holder itself to the life of extension automobile shock absorber.

In order to realize the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a guide holder structure, including base and guide block, the guide block fixed mounting be in on the base, first guiding hole has been seted up on the base, the second guiding hole has been seted up on the guide block, the axis coincidence of first guiding hole and second guiding hole, the hookup location department of guide block and base is provided with transition structure.

Guide block fixed mounting sets up transition structure through the hookup location at guide block and base and improves the intensity of guide holder itself, prolongs the life of guide holder on the base.

Preferably, the transition structure is a circular boss. Set up like this, circular boss structure is favorable to reducing the stress concentration of guide block and base hookup location department, improves the intensity of guide holder, strengthens the anti side direction effort's of guide holder ability.

Preferably, the height of the circular boss is 2-3mm, and the diameter of the circular boss is 38-42mm. By the arrangement, the specific size of the circular boss structure is given, and the production is convenient.

Preferably, the transition structure is a conical boss. Set up like this, conical boss structure is favorable to reducing the stress concentration of guide block and base hookup location department, improves the intensity of guide holder, strengthens the anti side direction effort's of guide holder ability.

Preferably, the height of the conical boss is 2-3mm, and the diameter of the conical boss is 38-42mm. By the arrangement, the specific size of the conical boss structure is given, and the conical boss structure is convenient to produce.

Preferably, the base and the guide block are both cylindrical. The arrangement makes the overall dimension of the guide seat circular, and is beneficial to the guide seat to be matched with other structures in the automobile shock absorber.

Preferably, the base, the transition structure and the guide block are integrally formed. By the arrangement, the guide seat is more convenient to produce.

An automobile shock absorber comprises an automobile shock absorber body and the guide seat structure. The guide seat with the transition structure is arranged in the automobile shock absorber, so that the service life of the automobile shock absorber is prolonged.

Adopt above-mentioned technical scheme's utility model, have following advantage:

the utility model discloses a hookup location department at the base of guide holder and guide block sets up transition structure, when production for the density of the hookup location department of base and guide block is more homogeneous, thereby lets the intensity of guide holder higher, and is stronger to the bearing capacity of the effort of side direction, and then prolongs automobile shock absorber's life.

Drawings

The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic structural view of a conventional shock absorber for an automobile;

FIG. 2 is a schematic structural view of a conventional guide seat;

fig. 3 is a schematic structural view of the guide seat structure of the present invention, in which the transition structure is a conical boss;

fig. 4 is a schematic structural view of the guide seat structure of the present invention, in which the transition structure is a circular boss;

FIG. 5 is a diagram showing the results of a failure test of a conical boss and a conventional guide seat in a transition structure of a guide seat structure according to the present invention;

the main element symbols are as follows:

1. a base; 2. a guide block; 3. a transition structure.

Detailed Description

The present invention will be described in detail with reference to the drawings and specific embodiments, wherein like reference numerals are used for similar or identical parts in the drawings or the description, and implementations not shown or described in the drawings are known to those of ordinary skill in the art. In addition, directional terms, such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present invention.

Example one

As shown in fig. 3-4, the utility model discloses a guide holder structure, including base 1 and guide block 2, base 1 and guide block 2 are the cylinder structure, have seted up first guiding hole on the base 1, have seted up the second guiding hole on the guide block 2, and first guiding hole and the coaxial setting of second guiding hole are used for the piston rod of slidable mounting automobile shock absorber. The connection position department of base 1 and guide block 2 is provided with transition structure 3, and transition structure 3, base 1 and the integrative die-casting of guide block 2 are moulded.

Through setting up transition structure 3, make the guide holder everywhere composition when producing more homogeneous, be favorable to improving the intensity of guide holder, make the intensity of guide holder higher, stronger to the bearing capacity of the effort of side direction to the life of extension automobile shock absorber.

In another embodiment, as shown in figure 3, the transition structure 3 is a conical boss having a height of 2-3mm and a diameter of 38-42mm, in this embodiment the conical boss preferably has a height of 2.4mm and the conical boss preferably has a diameter of 40.5mm. Through the transition of conical boss, when the production guide holder, help transmitting the guide block 2 by the base 1 of guide holder with the pressure of last mould, reduce the stress concentration of the base 1 and the 2 hookup location departments of guide block of guide holder, thereby make the holistic density of guide holder more homogeneous, reduce the void ratio of base 1 and the 2 hookup location departments of guide block, improve the surface quality of base 1 and the 2 hookup location departments of guide block simultaneously, reduce the production of sand hole, finally improve the intensity of guide holder itself, the reinforcing resists the ability of lateral force, promote automobile shock absorber's fatigue life.

As shown in fig. 5, the damage comparison test was performed on the guide holder with the transition structure 3 being a conical boss and the conventional guide holder, and the result showed that the damage force value of the guide holder with the transition structure 3 being a conical boss was improved by 11.3%.

As shown in FIG. 4, in the present embodiment, the transition structure 3 is a circular boss, the height of the circular boss is 2-3mm, and the diameter of the circular boss is 38-42mm. In the present embodiment, the height of the circular boss is preferably 2.4mm, and the diameter of the circular boss is preferably 40.5mm. Transition through circular boss, when producing the guide holder, help transmitting the guide block 2 by the base 1 of guide holder with the pressure of last mould, reduce the stress concentration of the base 1 and the 2 hookup location departments of guide block of guide holder, thereby make the holistic density of guide holder more homogeneous, reduce the void ratio of base 1 and the 2 hookup location departments of guide block, improve the surface quality of base 1 and the 2 hookup location departments of guide block simultaneously, reduce the production of sand hole, finally improve the intensity of guide holder itself, the reinforcing resists the ability of lateral force, promote automobile shock absorber's fatigue life.

Example two

An automobile shock absorber comprises an automobile shock absorber body and a guide seat structure in the first embodiment. The automobile shock absorber provided with the guide seat structure has longer service life.

It is right above the utility model provides a pair of guide holder structure and automobile shock absorber have carried out the detailed introduction. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.

Claims

1. The utility model provides a guide holder structure, including base (1) and guide block (2), guide block (2) fixed mounting be in on base (1), first guiding hole has been seted up on base (1), the second guiding hole has been seted up on guide block (2), the axis coincidence of first guiding hole and second guiding hole, its characterized in that: and a transition structure (3) is arranged at the connecting position of the guide block (2) and the base (1).

2. A saddle structure as claimed in claim 1, wherein: the transition structure (3) is a circular boss.

3. A saddle structure as claimed in claim 2, wherein: the height of the circular boss is 2-3mm, and the diameter of the circular boss is 38-42mm.

4. A saddle structure as claimed in claim 1, wherein: the transition structure (3) is a conical boss.

5. A guide shoe construction according to claim 4 wherein: the height of the conical boss is 2-3mm, and the diameter of the conical boss is 38-42mm.

6. A saddle structure as claimed in claim 1, wherein: the base (1) and the guide block (2) are both cylinders.

7. A saddle structure as claimed in claim 1, wherein: the base (1), the transition structure (3) and the guide block (2) are integrally formed.

8. An automotive shock absorber characterized in that: comprising a body of a shock absorber for a vehicle and a guide seat structure according to any one of claims 1 to 7.