CN207018402U - Blast ring - Google Patents

Abstract

The utility model discloses a kind of blast ring, and it includes an explosion-proof ring body, and an annular steps are set up at the inwall bottom of the explosion-proof ring body or middle part, and the height of the explosion-proof ring body is set up to 9mm, and the material of the explosion-proof ring body and the annular steps uses SKH51.Using blast ring of the present utility model, dust cover is not easy stripping, and stripping ratio is 0%, and dust cover once blows quick-fried rate>99%, dust cover twisting coefficient is 0%.

Description

Blast ring

Technical field

The blast ring technical field of piston dust cover is the utility model is related to, more particularly to a kind of step blast ring.

Background technology

At present, piston dust cover blows quick-fried blast ring mainly based on straight barrel type automatically during electronic caliper piston assembling, straight tube Formula blast ring is mainly used in the less piston dust cover of diameter, blown by 0.3bar air pressure by dust cover moment it is quick-fried, dust cover Outward flange is attached on the inwall of blast ring, the contact of the oral area and gasket seal of dust cover, so as to allow dust cover inward flange and Piston outer wall contacts, and then dust cover blows quick-fried effect.

The shortcomings that straight barrel type blast ring is present：The easy stripping of dust cover, stripping ratio are 2%, and the quick-fried rate of blowing of dust cover is 95%, the twisting coefficient of dust cover is 2%.

Utility model content

The utility model is directed to problem and shortage existing for prior art, there is provided a kind of new blast ring.

The utility model is that solve above-mentioned technical problem by following technical proposals：

The utility model provides a kind of blast ring, and its feature is that it includes an explosion-proof ring body, the explosion-proof ring body An annular steps are set up at inwall bottom or middle part, and the height of the explosion-proof ring body is set up to 9mm, the explosion-proof ring body and the annulus The material of step uses SKH51 (also known as air hardening steel or high-speed steel, be a kind of steel alloy of complicated component).

It is preferred that the explosion-proof ring body and the annular steps are integrally formed.

On the basis of common sense in the field is met, above-mentioned each optimum condition, can be combined, produce the utility model respectively compared with Good example.

Positive effect of the present utility model is：

Using blast ring of the present utility model, dust cover is not easy stripping, and stripping ratio is 0%, and dust cover once blows quick-fried rate> 99%, dust cover twisting coefficient is 0%.

Brief description of the drawings

Fig. 1 is the structural representation of the blast ring of the utility model preferred embodiment.

Embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model Example, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made, all belongs to In the scope of the utility model protection.

As shown in figure 1, the present embodiment provides a kind of blast ring, it includes an explosion-proof ring body 1, the explosion-proof ring body 1 An annular steps 2 are set up at inwall bottom or middle part, and the explosion-proof ring body 1 and the annular steps 2 are integrally formed, the explosion-proof ring body 1 height is set up to 9mm, and the material of the explosion-proof ring body 1 and the annular steps 2 uses SKH51.

In the present embodiment, the inwall of explosion-proof ring body 1 sets up annular steps 2 so that dust cover moment blow detonation pressure power can To maintain, and set up annular steps 2 so that dust cover is not easy stripping.

The height of explosion-proof ring body 1 increases 4mm than common straight barrel type blast ring, is actually changed to 9mm, closer to anti- The height of dust hood so that it is dust-proof to be covered with more sufficient quick-fried space of blowing, dust cover more can spread apart, dust cover will not distort.

The explosion-proof ring material of step is altered to SKH51, hardness by S45C (medium carbon steel)：HRC 60+/- 2, blast ring is not allowed It is yielding.

Although the foregoing describing specific embodiment of the present utility model, it will be appreciated by those of skill in the art that These are merely illustrative of, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art Member can make numerous variations or repair to these embodiments on the premise of without departing substantially from principle of the present utility model and essence Change, but these changes and modification each fall within the scope of protection of the utility model.

Claims (2)

1. a kind of blast ring, it is characterised in that it includes an explosion-proof ring body, and the inwall bottom of the explosion-proof ring body or middle part increase If an annular steps, the height of the explosion-proof ring body is set up to 9mm, and the material of the explosion-proof ring body and the annular steps uses SKH51。

2. blast ring as claimed in claim 1, it is characterised in that the explosion-proof ring body and the annular steps are integrally formed.