CN208764321U

CN208764321U - A kind of mechanically-sealing apparatus

Info

Publication number: CN208764321U
Application number: CN201821255935.4U
Authority: CN
Inventors: 李友宝; 励永平
Original assignee: NINGBO DONGLIAN SEALING PARTS CO Ltd
Current assignee: NINGBO DONGLIAN SEALING PARTS CO Ltd
Priority date: 2018-08-06
Filing date: 2018-08-06
Publication date: 2019-04-19
Anticipated expiration: 2028-08-06

Abstract

The utility model provides a kind of mechanically-sealing apparatus, comprising: axis body, spring base, stationary seat, stationary ring, bellows and spring；The spring base and the stationary seat are arranged on the axis body, the stationary ring is arranged on the stationary seat, the bellows-sheathed is located on the axis body and the both ends of the bellows are connect with the stationary seat and the spring base respectively, and the both ends of the spring are connect with the stationary seat and the spring base respectively.The utility model has the following beneficial effects: can still have good sealing effect under hyperbaric environment.

Description

A kind of mechanically-sealing apparatus

Technical field

The utility model belongs to the sealing device technical field of mechanical equipment, is related to a kind of mechanically-sealing apparatus.

Background technique

On mechanical sealing member, there are some more special structures or application environment more special mechanically, tradition Sealing structure often do not have good sealing effect, for example, in the axis body sealing structure of cooler, due to integrated environment In high pressure, so existing sealing structure can not adapt to this job requirement, the sealing of sealing ring will lead in this way The problem of performance will also substantially reduce, and be likely to occur leakage at this time, and as the oil liquid in mechanical seal penetrates into, to make Product is by corrosion contamination and scraps.

So needing a kind of mechanical seal dress can under hyperbaric environment still with good sealing effect at present It sets.

Utility model content

The purpose of this utility model is in view of the above-mentioned problems existing in the prior art, to propose a kind of mechanically-sealing apparatus.

The purpose of this utility model can be realized by the following technical scheme: a kind of mechanically-sealing apparatus, comprising: axis body, Spring base, stationary seat, stationary ring, bellows and spring；The spring base and the stationary seat are arranged on the axis body, The stationary ring is arranged on the stationary seat, the bellows-sheathed be located on the axis body and the both ends of the bellows respectively with The stationary seat and spring base connection, the both ends of the spring connect with the stationary seat and the spring base respectively It connects.

Preferably, be provided with rotating seat on the axis body, be provided with rotating ring on the rotating seat, the rotating ring with it is described quiet Ring contradicts connection.

Preferably, the both ends of the bellows are fixed on the axis body, the spring is set on the axis body, and institute Bellows is stated to be located in the spring.

Preferably, the front end of the stationary seat has the connecting pin for being threaded through the spring end, and the stationary ring The rear end of seat has a circle cavity wall, and the stationary ring is fixed in the cavity wall.

Preferably, offering outer gap slot on the stationary ring, stationary ring sealing ring is provided in the outer gap slot, it is described quiet Ring sealing ring contradicts in the cavity wall.

Preferably, the rotating seat, which has, wears end, the front for wearing end is located in the cavity wall, the moving ring sleeve It is located at described wear on end.

Preferably, offering interior gap slot on the rotating ring, seal ring of moving ring is provided in the interior gap slot, it is described dynamic Ring sealing snare is worn on end described.

Compared with prior art, the utility model has the following beneficial effects:

1, can still have good sealing effect under hyperbaric environment.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the mechanically-sealing apparatus of the utility model.

In figure, 100, axis body；200, spring base；300, stationary seat；310, connecting pin；320, cavity wall；400, stationary ring；410, Outer gap slot；420, stationary ring sealing ring；500, bellows；600, spring；700, rotating seat；710, end is worn；800, rotating ring； 810, interior gap slot；820, seal ring of moving ring.

Specific embodiment

It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.

As shown in Figure 1, a kind of mechanically-sealing apparatus, comprising: axis body 100, spring base 200, stationary seat 300, stationary ring 400, Bellows 500 and spring 600；The spring base 200 and the stationary seat 300 are arranged on the axis body 100, described Stationary ring 400 is arranged on the stationary seat 300, and the bellows 500 is set on the axis body 100 and the bellows 500 Both ends connect respectively with the stationary seat 300 and the spring base 200, the both ends of the spring 600 respectively with it is described quiet Ring seat 300 and the spring base 200 connect.

It is worth noting that, the sealing device in present embodiment is very suitable for the machine envelope of cooler herein, can Reliably guarantee the sealing effect of mechanical structure in the environment of high pressure.

Preferably, axis body 100 is exactly an axis, and spring base 200 is exactly one and is arranged on axis body 100 similar to axle sleeve Structure, static relative to axis body 100, stationary seat 300 is arranged on axis body 100, and remain stationary relative to axis body 100, also It is to say that stationary seat 300 and stationary ring 400 remain stationary when axis body 100 rotates, spring 600 and bellows 500 are located at stationary seat Between 300 and spring base 200, wherein spring 600 is for pushing stationary seat 300 and stationary ring 400, the axial direction as stationary ring 400 Force compensating, to improve the sealing effect of stationary ring 400 Yu rotating ring 800, bellows 500 can play sealing and auxiliary compensation effect Fruit, while spring 600 provides balancing force, bellows 500, which plays, provides auxiliary compensation power.

As shown in Figure 1, on the basis of the above embodiment, rotating seat 700 is provided on the axis body 100, it is described dynamic Rotating ring 800 is provided in ring seat 700, the rotating ring 800 is contradicted with the stationary ring 400 to be connected.

Preferably, rotating seat 700 and rotating ring 800 are additionally provided on axis body 100, rotating seat 700 and the linkage of axis body 100 connect Connect, opposite axis body 100 is remain stationary, that is to say, that when axis body 100 rotates, rotating ring 800 is rotated therewith, spring 600 with And bellows 500 pushes stationary ring 400 to rotating ring 800, so that the two be made closely to fit together.

As shown in Figure 1, on the basis of the above embodiment, the both ends of the bellows 500 are fixed on the axis body 100 On, the spring 600 is set on the axis body 100, and the bellows 500 is located in the spring 600.

Preferably, axis body 100 is actually that the both ends of bellows 500 have matches with axis body 100 across bellows 500 The axis hole of conjunction avoids liquid from seeping so that bellows 500 can seal up the part between spring base 200 and rotating seat 700 Enter between transmission shaft and axis body 100 and stationary seat 300 and axis body 100.

As shown in Figure 1, on the basis of the above embodiment, the front end of the stationary seat 300 has for being threaded through The connecting pin 310 of 600 end of spring is stated, and the rear end of the stationary seat 300 has a circle cavity wall 320, the stationary ring 400 is fixed In the cavity wall 320.

Preferably, stationary seat 300 is similar to stepped shaft structure, and thinner one end is threaded through on 600 end of spring, thus Connecting pin 310 is set to be connected together with spring 600, stationary ring 400 is embedded in cavity wall 320.

As shown in Figure 1, on the basis of the above embodiment, outer gap slot 410 is offered on the stationary ring 400, it is described Stationary ring sealing ring 420 is provided in outer gap slot 410, the stationary ring sealing ring 420 contradicts in the cavity wall 320.

Preferably, outer gap slot 410 is exactly the annular groove opened up on 400 outer ring face of stationary ring, and stationary ring sealing ring 420 is actually Between stationary ring 400 and cavity wall 320, to seal up stationary ring 400 and stationary seat 300.

As shown in Figure 1, on the basis of the above embodiment, the rotating seat 700, which has, wears end 710, described to wear The front at end 710 is located in the cavity wall 320, and the rotating ring 800 is set in described wear on end 710.

Preferably, rotating seat 700 is also similar to that stepped shaft structure, and the end 710 that wears of front end is located in cavity wall 320, and 800 sets of rotating ring is on wearing end 710, so that rotating ring 800 is sealed with stationary ring 400.

As shown in Figure 1, on the basis of the above embodiment, interior gap slot 810 is offered on the rotating ring 800, it is described Seal ring of moving ring 820 is provided in interior gap slot 810,820 sets of the seal ring of moving ring wear on end 710 described.

Preferably, the annular groove that the inner ring face of interior gap slot 810 actually rotating ring 800 opens up, seal ring of moving ring 820 Between rotating ring 800 and rotating seat 700, to seal up rotating ring 800 and rotating seat 700.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Claims

1. a kind of mechanically-sealing apparatus characterized by comprising axis body, spring base, stationary seat, stationary ring, bellows and bullet Spring；The spring base and the stationary seat are arranged on the axis body, and the stationary ring is arranged on the stationary seat, described Bellows-sheathed is located on the axis body and the both ends of the bellows are connect with the stationary seat and the spring base respectively, institute The both ends for stating spring are connect with the stationary seat and the spring base respectively.

2. mechanically-sealing apparatus as described in claim 1, it is characterised in that: rotating seat is provided on the axis body, it is described Rotating ring is provided on rotating seat, the rotating ring and the stationary ring, which contradict, to be connected.

3. mechanically-sealing apparatus as described in claim 2, it is characterised in that: the both ends of the bellows are fixed on the axis On body, the spring is set on the axis body, and the bellows is located in the spring.

4. mechanically-sealing apparatus as described in claim 3, it is characterised in that: the front end of the stationary seat has for wearing In the connecting pin of the spring end, and the rear end of the stationary seat has a circle cavity wall, and the stationary ring is fixed on the cavity wall It is interior.

5. mechanically-sealing apparatus as described in claim 4, it is characterised in that: offer outer gap slot, institute on the stationary ring It states and is provided with stationary ring sealing ring in outer gap slot, the stationary ring sealing ring contradicts in the cavity wall.

6. mechanically-sealing apparatus as described in claim 5, it is characterised in that: the rotating seat, which has, wears end, described to wear If the front at end is located in the cavity wall, the rotating ring is set in described wear on end.

7. mechanically-sealing apparatus as described in claim 6, it is characterised in that: offer interior gap slot, institute on the rotating ring It states and is provided with seal ring of moving ring in interior gap slot, the ring seal snare is worn on end described.