CN205908677U - Bumper - Google Patents

Abstract

The utility model relates to a bumper, including the column buffer body, still include an axle collar, the flange is extended to the upper end circumference of the axle collar, offer the counter bore on surface about having a perfect understanding in the buffer body, the axle collar passes through the interference fit embedding in the counter bore, just the flange support in on the step face of counter bore. The utility model discloses a bumper is cushioned by the buffer body earlier during the use at the embedded axle collar of establishing of buffer body counter bore, after reacing certain stroke, absorbs the impact energy that the motion was personally experienced sth. Part of the body by the axle collar again to can improve the security performance, increase of service life.

Description

A kind of buffer

Technical field

The utility model is related to mechanical cushioning device, more particularly, it relates to a kind of buffer.

Background technology

It is known that buffer is the important safety protector of the mechanisms such as linear motion, rotary motion it is therefore an objective to pass through The protection of buffer, reduces and even avoids being mechanically connected the damage of main body.So, the protected effect of buffer itself, use the longevity The technical parameters such as life directly affects connected machinery safety work.

At present, on market power consumption 10%-15% mainly have polyurethane bumper absorber, its major defect be polyurethane itself appearance Easily rupturable so as to service life significantly reduces.

Utility model content

The technical problems to be solved in the utility model is, for the drawbacks described above of prior art, provides one kind can carry High safety performance, the buffer increasing the service life.

The utility model solves its technical problem and be the technical scheme is that a kind of buffer of proposition, delays including column Rush body, also include a collar, the upper end of described collar circumferentially extending go out flange, described buffering offers insertion upper and lower surface in vivo Counterbore, described collar is embedded in described counterbore by interference fit, and described flange is butted on the step surface of described counterbore.

According in an embodiment of the present utility model, described buffer body is polyurethane buffering body, and described collar is hard Metallic collar.

According in an embodiment of the present utility model, described collar is steel shaft ring.

Buffer of the present utility model is embedded collar in buffer body counterbore, first enters row buffering by buffer body during use, when After reaching certain stroke, then the impact energy by collar absorption movable body, such that it is able to improve security performance, extend and use the longevity Life.

Brief description

Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:

Fig. 1 is the structure sectional view of the buffer of one embodiment of the utility model；

Fig. 2 is the top view of the buffer shown in Fig. 1.

Specific embodiment

In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only in order to explain The utility model, is not used to limit the utility model.

As depicted in figs. 1 and 2, the utility model proposes buffer be made up of buffer 10 and collar 20 two parts.Slow Chong Ti 10 center is machined with the counterbore 11 of insertion upper and lower surface, forms a step surface 12 in counterbore 11.Buffer body 10 is preferably by gathering Urethane is made.Collar 20 is made up of hard metal such as steel, the upper end of collar 20 circumferentially extending go out flange 21.Collar 20 was passed through Cooperation of being full of is embedded in the counterbore 11 of buffer body 10, until the flange 21 of collar 20 is offseted with the step surface 12 in buffer body 10, Just form the buffer of integral structure of the present utility model.

This buffer, when using, first enters row buffering by buffer body 10, after reaching certain stroke, then is absorbed by collar 20 The impact energy of movable body, such that it is able to improve security performance, increases the service life.

The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all this Any modification, equivalent and improvement made within the spirit of utility model and principle etc., should be included in the utility model Protection domain within.

Claims (3)

1. a kind of buffer, including column buffer body it is characterised in that also including a collar, the upper end circumference of described collar is prolonged Stretch out flange, described buffering offers the counterbore of insertion upper and lower surface in vivo, it is described heavy that described collar is embedded by interference fit In the hole, and described flange is butted on the step surface of described counterbore.

2. buffer according to claim 1 it is characterised in that described buffer body be polyurethane buffering body, described collar For hard metal collar.

3. buffer according to claim 2 is it is characterised in that described collar is steel shaft ring.