CN201747839U

CN201747839U - Buffer unit

Info

Publication number: CN201747839U
Application number: CN2010202696607U
Authority: CN
Inventors: 郭向阳
Original assignee: HEBEI WANZHONG AUTO PARTS MANUFACTURING CO LTD
Current assignee: HEBEI WANZHONG AUTO PARTS MANUFACTURING CO LTD
Priority date: 2010-07-26
Filing date: 2010-07-26
Publication date: 2011-02-16
Anticipated expiration: 2020-07-26

Abstract

The utility model provides a buffer unit which is assembled at the limiting position of the reciprocating motion of a piston in a cylinder barrel of a shock absorber. The buffer unit comprises a buffer block made of elastic material and an annular guard board made of hard material, wherein the external diameter of the annular guard board is smaller than that of the buffer block, and the internal diameter is machined with hooks which are uniformly distributed on the circumference and are fixedly connected with the buffer block; and the hooks are bonded with the buffer block through the vulcanizing or gluing method. The buffer unit is added at the limiting position of the piston motion of the shock absorber, the buffer block made of elastic material is used for fully absorbing the impact from the combined piston, the hard guard board at the outer end has protection function for the buffer block and can prevent the buffer block from being cracked by the piston. Therefore, the impact resistance reliability of the shock absorber is effectively improved, and the common characteristics of the existing shock absorber are fully carried on.

Description

Damping device

Technical field

The utility model relates to a kind of damping device that is used for vibration damper, belongs to hydraulic machinery and road vehicle application field.

Background technique

Buffer generally all is a tubular construction, mainly partly is made up of pressure part, shock absorber (medium), return unit and housing etc.The basic functional principle of buffer is: when taking place to impact, impact loading is in pressure part, and shock absorber (medium) absorbs impact energy and be converted into thermal dissipation, and the part impact energy is converted into elastic energy and is stored in the return unit; When impacting end, the elastic energy of return unit makes the initial position before pressure part resets to impact.Usually require resetting time short as far as possible, and situation is hit in non-recoil.The construction design method of buffer is a lot, and purpose of design all is to utilize the cushion energy absorbing property of structure and material to protect the object of required protection.The medium damping of buffer is also varied, and commonly used have dry-friction damping, gas and liquid medium damping and an electromagnetic damping etc.

Different mechanical systems requires also different to the technical parameter of buffer, whether buffer good, mainly see its whether can with mechanical system to coupling, can reduce mechanical impact force to greatest extent, to improve the running stability and the working life of mechanical system.

The deficiency of existing vibration damper:

When vehicle especially off-road vehicle is run at high speed, be difficult to avoid fully clashing into the appearance of limiting stopper and " hang and puncture " phenomenon under abominable road conditions.If the limiting stopper on the car body can not play position-limiting action well, the very temporary impact of fierceness will take place between the upper and lower end cap of vibration damper main piston and cylinder barrel, can produce very big threat to the reliability of vibration damper.

The model utility content

The purpose of this utility model is to overcome the deficiency of above-mentioned prior art, and a kind of rubber buffer that is used for vibration damper is provided.

Damping device of the present utility model, be assemblied in the reciprocating limit position of vibration damper cylinder barrel inner carrier, comprise buffer stopper that forms by materials processing and the annular guard board of making by hard material with elastic property, wherein the external diameter of annular guard board is smaller than buffer stopper, internal diameter is processed with the circumferentially uniform crotch that is connected with buffer stopper of being used for, and bonds together by sulfuration or gluing mode and buffer stopper.

At the limit position reload buffer device of damper piston motion, fully absorb impact by the buffer stopper of making by elastic material, and buffer stopper is played a protective role by the hard backplate of its outer end from built-up piston, prevent that it from being broken by piston.Like this, improve the shock proof reliability of vibration damper effectively, and fully inherited the popular feature that existing vibration damper had.

Description of drawings

Fig. 1 is a vibration damper damping device structural drawing;

Fig. 2 is the annular guard board structural drawing.

Embodiment

Below in conjunction with accompanying drawing the vibration damper damping device is done detailed description:

Figure 1 shows that damping device, be assemblied in the reciprocating limit position of vibration damper cylinder barrel inner carrier.This damping device comprises buffer stopper and annular guard board, buffer stopper 1 is formed by the materials processing that rubber etc. has elastic property, annular guard board 2 can be made by hard material, smaller for ease of the assembling external diameter than buffer stopper 1, annular guard board 2 internal diameters are processed with circumferentially uniform crotch 21, be used for being connected, bond together by sulfuration or gluing mode and buffer stopper 1 simultaneously, prevent to come off with buffer stopper 1.

When vehicle is run at high speed under abominable road conditions, if the limiting stopper on the car body lost efficacy, will probably cause the overtravel motion of piston, thereby produce fierce collision with vibration damper upper connection and lower support, this will be easy to cause the leakage of vibration damper until breaking-up.Behind the reload buffer device, the buffer stopper of being made by elastic material 1 will fully absorb the impact of piston in vibration damper, and the annular guard board 2 of its outer end bonding then can play necessary protective action to buffer stopper 1, prevents that it from being broken by piston.To improve the shock proof reliability of vibration damper effectively like this.

The related damping device of the utility model can be installed in the vibration damping equipment of other type equally in the above described manner, and under the situation that does not break away from the spirit and scope of the present utility model that are defined by the following claims, can carry out various change and change to the utility model.

Claims

1. damping device, be assemblied in the reciprocating limit position of vibration damper cylinder barrel inner carrier, comprise buffer stopper that forms by materials processing and the annular guard board of making by hard material with elastic property, it is characterized in that: the external diameter of annular guard board is smaller than buffer stopper, internal diameter is processed with the circumferentially uniform crotch that is connected with buffer stopper of being used for, and bonds together by sulfuration or gluing mode and buffer stopper.