CN206111651U - Single end face seal mechanism - Google Patents
Single end face seal mechanism Download PDFInfo
- Publication number
- CN206111651U CN206111651U CN201620995989.9U CN201620995989U CN206111651U CN 206111651 U CN206111651 U CN 206111651U CN 201620995989 U CN201620995989 U CN 201620995989U CN 206111651 U CN206111651 U CN 206111651U
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- CN
- China
- Prior art keywords
- axle sleeve
- ring
- seal mechanism
- gland
- single seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Mechanical Sealing (AREA)
Abstract
The utility model provides a single end face seal mechanism, includes the axle sleeve, its characterized in that, the axle sleeve cover is on the transmission shaft, install the impeller on the transmission shaft, be equipped with sealed pad I between axle sleeve and the impeller, there are rotating ring, quiet ring, throw -out collar, spring and gland from overlapping in proper order on the axle sleeve on one side of the impeller, gland connection seals the room organically, the throw -out collar compresses tightly on quiet ring under the effect of spring, the rotating ring compresses tightly on the axle sleeve under the effect of quiet ring, the utility model has the advantages of long service life, it is sealed effectual.
Description
Technical field
This utility model patent is related to mechanical seal field, more particularly to a kind of single mechanical end face seal structure.
Background technology
Mechanical seal refer to by least one pair of perpendicular to rotation axiss end face Fluid pressure and compensation mechanism elastic force (or
Magnetic force) in the presence of and the cooperation of auxiliary seal under keep laminating and the dress for preventing fluid leakage constituted with respect to slip
Put.Mechanical seal can work in the case where some are than relatively rugged environment, such as high speed, high temperature, high pressure, low temperature, poisonous, vacuum, burn into
Inflammable and explosive etc., general sealed product is incompetent, and it has good sealing effect, and rotating shaft of not wearing and tearing, long service life disappears
Wasted work rate is little, the advantages of, so in the world mechanical seal is the topmost sealing mode of this kind equipment.Mechanical seal is called end
Face seal.
With China's industrial development, the field of mechanically-sealing apparatus application also becomes increasingly wider, and mechanical seal is a kind of
The gland seal device of rotating machinery, due between axle and equipment exist a circumferential clearance, the medium in equipment by the gap to
Outward leakage.Pump is in the mordant liquid of extraction belt or gas, it is desirable to which the structure contacted with extraction medium has very strong
Corrosion resistance, and mechanical seal also with the physical contact between media for extracting, therefore be also required to good corrosion resistance, pump could be met
Requirement.Existing mechanical seal countershaft cannot play protection well, and the axle for causing pump is easy to the damage that is corroded, greatly
Reduce the service life of pump.
The existing mechanical seal structure for pumping corrosive medium, rotating ring and the easy eccentric wear of stationary ring, pump docking process
Middle machine envelope just occurs leakage phenomenon, the perishable sealing structure of micro- leakage medium.
Utility model content
Technical problem to be solved in the utility model and the technical assignment for proposing are that prior art is improved, this reality
A kind of mechanical single seal mechanism is disclosed with new, be its object is to, there is provided a kind of long service life, the sealing of good sealing effect
Mechanism.
To solve above technical problem, the technical solution of the utility model is a kind of mechanical single seal mechanism, including axle
Set, the axle sleeve is sleeved on power transmission shaft, and impeller is provided with the power transmission shaft, and between the axle sleeve and impeller sealing gasket is provided with
I, rotating ring, stationary ring, throw-out collar, spring and gland are cased with successively near impeller side on the axle sleeve, the gland is connected with
Sealing chamber, the throw-out collar is pressed under the action of the spring on stationary ring, and the rotating ring is pressed on axle sleeve in the presence of stationary ring.
Preferably, the axle sleeve includes the first axle sleeve and the second axle sleeve, and second axle sleeve is enclosed within first axle and puts.
Preferably, second axle sleeve is provided with screw, and second axle sleeve is fixed on the first axle sleeve by holding screw
On.
Preferably, stripping ring is also included, the stripping ring is sleeved on power transmission shaft.
Preferably, the stripping ring is located at side of the axle sleeve away from impeller.
Preferably, gland inserts is also included, the gland inserts is sleeved on the stationary ring.
Preferably, the gland inserts is axially located between the sealing chamber and the gland.
Preferably, sealing gasket II is also included, the sealing gasket is located between the sealing chamber and the gland inserts.
Preferably, the throw-out collar is the L-shaped ring in section, and the throw-out collar is enclosed within the stationary ring near one end of spring.
This utility model provides a kind of mechanical single seal mechanism, and axle sleeve is axially fixed on axle by stripping ring, axle sleeve and
Sealed by sealing ring between impeller, moving ring sleeve is provided with axial gap on axle sleeve before rotating ring and impeller, rotating ring is in fortune
Do not pick out with impeller during turning, therefore effectively anti-locating snap ring eccentric wear.
A kind of mechanical single seal mechanism of this practical disclosure of the invention, with long service life, the advantage of good sealing effect.
Description of the drawings
Fig. 1 is structure chart of the present utility model；
Fig. 2 is partial enlarged drawing of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
As depicted in figs. 1 and 2, a kind of mechanical seal structure, including axle sleeve, the axle sleeve passes through the axial restraint of stripping ring 13
In rotary shaft 20, the axle sleeve includes the first axle sleeve 14 and the second axle sleeve 12, and first axle sleeve 14 is enclosed within rotary shaft 20,
Second axle sleeve 12 is enclosed within the first axle sleeve 14, and second axle sleeve 12 is fixed on the first axle sleeve 14 by holding screw 11
On.
The rotary shaft 20 is provided with impeller 1, and sealing gasket I 2, second axle sleeve are provided between the axle sleeve and impeller 1
Rotating ring 5, stationary ring 7, throw-out collar 9, spring 15 and gland 10 are cased with successively near the side of impeller 1 on 12, wherein：
The rotating ring 5 is circumferentially fixed on the second axle sleeve 12 by connecting pin 19, and second axle sleeve 12 is provided with collar
6, the rotating ring 5 is axially fixed on the second axle sleeve by collar 6, and between the axle sleeve 12 of the rotating ring 5 and second sealing ring is provided with
II 3 and sealing ring III 18；
Gland inserts 16 is cased with the outer peripheral face of the stationary ring 7, between the stationary ring 7 and the gland inserts 16 sealing is provided with
Enclose I 17；
The throw-out collar 9 is the annulus that section is " L " type, and the throw-out collar 9 is enclosed within stationary ring 7 near one end of spring 15；
The gland 10 is provided with spring groove, and the spring 15 is located in spring groove；
The gland 10 is connected in sealing chamber 4, is gland inserts 16 between the gland 10 and sealing chamber 4, the pressure
Sealing gasket II 8 is provided between lid inserts 16 and sealing chamber 4.
In the presence of spring 15, throw-out collar 9 is pressed on stationary ring 7 on rotating ring 5, and the axial compression of rotating ring 5 is in the second axle sleeve 12
On.
This utility model provides a kind of mechanical single seal mechanism, and axle sleeve is axially fixed on axle by stripping ring, axle sleeve and
Sealed by sealing ring between impeller, moving ring sleeve is provided with axial gap on axle sleeve before rotating ring and impeller, rotating ring is in fortune
Do not pick out with impeller during turning, therefore effectively anti-locating snap ring eccentric wear.
The axle sleeve is axially fixed on power transmission shaft by stripping ring, has the advantages that easy accessibility.
A kind of mechanical single seal mechanism of this practical disclosure of the invention, with long service life, the advantage of good sealing effect.
The above is only preferred implementation of the present utility model, it is noted that above-mentioned preferred implementation should not be regarded
It is that, to restriction of the present utility model, protection domain of the present utility model should be defined by claim limited range.For
For those skilled in the art, in without departing from spirit and scope of the present utility model, can also make some
Improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (9)
1. a kind of mechanical single seal mechanism, including axle sleeve, it is characterised in that the axle sleeve is sleeved on power transmission shaft, the transmission
Impeller is installed on axle, sealing gasket I is provided between the axle sleeve and impeller, cover successively near impeller side on the axle sleeve
There are rotating ring, stationary ring, throw-out collar, spring and gland, the gland is connected with sealing chamber, and the throw-out collar is pressed under the action of the spring
On stationary ring, the rotating ring is pressed on axle sleeve in the presence of stationary ring.
2. mechanical single seal mechanism according to claim 1, it is characterised in that the axle sleeve includes the first axle sleeve and second
Axle sleeve, second axle sleeve is enclosed within first axle and puts.
3. mechanical single seal mechanism according to claim 2, it is characterised in that second axle sleeve is provided with screw, institute
State the second axle sleeve first axle is fixed on by holding screw and put.
4. mechanical single seal mechanism according to claim 1, it is characterised in that also include stripping ring, the stripping ring
It is sleeved on power transmission shaft.
5. mechanical single seal mechanism according to claim 4, it is characterised in that the stripping ring is located at axle sleeve away from impeller
Side.
6. mechanical single seal mechanism according to claim 1, it is characterised in that also include gland inserts, the gland
Inserts is sleeved on the stationary ring.
7. mechanical single seal mechanism according to claim 6, it is characterised in that the gland inserts is axially located in described
Between sealing chamber and the gland.
8. mechanical single seal mechanism according to claim 7, it is characterised in that also include sealing gasket II, the sealing
Pad is located between the sealing chamber and the gland inserts.
9. mechanical single seal mechanism according to claim 1, it is characterised in that the throw-out collar is the L-shaped ring in section,
The throw-out collar is enclosed within the stationary ring near one end of spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620995989.9U CN206111651U (en) | 2016-08-30 | 2016-08-30 | Single end face seal mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620995989.9U CN206111651U (en) | 2016-08-30 | 2016-08-30 | Single end face seal mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206111651U true CN206111651U (en) | 2017-04-19 |
Family
ID=58515564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620995989.9U Active CN206111651U (en) | 2016-08-30 | 2016-08-30 | Single end face seal mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206111651U (en) |
-
2016
- 2016-08-30 CN CN201620995989.9U patent/CN206111651U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610300 Sichuan Province, Chengdu District of Qingbaijiang City Industrial Development Zone with Road No. 777 Patentee after: Chengdu Yongyi pump Limited by Share Ltd Address before: 610300 Sichuan Province, Chengdu District of Qingbaijiang City Industrial Development Zone with Road No. 777 Patentee before: Chengdu Yongyi Pumps Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |