CN208268412U - A kind of more flushing type double mechanical seals - Google Patents
A kind of more flushing type double mechanical seals Download PDFInfo
- Publication number
- CN208268412U CN208268412U CN201820849703.5U CN201820849703U CN208268412U CN 208268412 U CN208268412 U CN 208268412U CN 201820849703 U CN201820849703 U CN 201820849703U CN 208268412 U CN208268412 U CN 208268412U
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- CN
- China
- Prior art keywords
- ring
- axle sleeve
- sealing ring
- spring base
- seal receptacle
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Abstract
The utility model relates to mechanical seal fields, specifically a kind of more flushing type double mechanical seals, including axle sleeve, primary seal system and seal receptacle, the first sealing ring is equipped in axle sleeve, primary seal system includes the second sealing ring, rotating ring, stationary ring and the 8th sealing ring, stationary ring left end is equipped with throw-out collar, seal receptacle is externally provided with third sealing ring, axle sleeve left end is equipped with pushing out ring, transmission ring, outer stationary ring and outer rotating ring, spring base is equipped on the left of seal receptacle, locating piece is equipped between transmission ring and spring base, axle sleeve, retainer ring is equipped between pushing out ring and outer rotating ring, spring and the 4th sealing ring are equipped between spring base and outer stationary ring, the 5th sealing ring is equipped between outer rotating ring and axle sleeve, the 6th sealing ring and the 7th sealing ring are equipped between spring base and seal receptacle, the 9th sealing ring is equipped between rotating ring and axle sleeve, interior irrigation channel is equipped on seal receptacle and spring base , spring base middle part is equipped with outer irrigation channel.The utility model improves its use environment by interior flushing and outer flushing and prolongs its service life.
Description
Technical field
The utility model relates to mechanical seal field, specifically a kind of more flushing type double mechanical seals.
Background technique
Double mechanical seal lean on perpendicular to rotation axis end face Fluid pressure and compensation mechanism elastic force effect with
And the device for preventing fluid from leaking for being bonded and constituting with respect to sliding is kept under the cooperation of auxiliary seal.Double mechanical seal
When structure such as works, under the force action as caused by elastic force of Fluid pressure and elastic element etc., produced on the end face of sealing ring
Raw one appropriate than pressing, and fits closely two contact faces mutually, and maintain one layer in minimum gap between both ends of the surface
Very thin liquid film, to achieve the purpose that sealing, double mechanical seal belongs to accurate, the more complicated Mechanical Fundamentals member of structure
One of part is the critical component of the equipment such as various pump classes, reaction synthesis reactor, turbocompressor, submersible motor.Existing Double End
Its backwashing manner of mechanical seal is more single, the use environment of improvement double mechanical seal that can not be comprehensive, therefore can add
The loss of acute double mechanical seal, to make its short service life.
Utility model content
It is complete by a variety of backwashing manners the purpose of this utility model is to provide a kind of more flushing type double mechanical seals
Aspect improves its use environment and prolongs its service life.
The technical solution of the utility model is: including axle sleeve, primary seal system and seal receptacle, the axle sleeve is in hollow structure
And it is internally provided with the first sealing ring, the primary seal system is set on axle sleeve, and sealed socket sleeve is located at the outer of primary seal system
Side, the primary seal system include the second sealing ring, rotating ring, stationary ring and the 8th sealing ring, and the rotating ring is set in the right side of axle sleeve
End, second sealing ring is between rotating ring and axle sleeve, and the stationary ring is set on axle sleeve and the right end of stationary ring and rotating ring paste
It closes, for the 8th sealing ring between stationary ring and seal receptacle, the left end of the stationary ring is equipped with throw-out collar, the outside of the seal receptacle
It is arranged with third sealing ring, the left end of the axle sleeve is equipped with pushing out ring, and the left side of the seal receptacle is equipped with the bullet being firmly connected with it
Spring abutment, the left end of the axle sleeve are arranged with transmission ring, and locating piece, a left side for the axle sleeve are equipped between the transmission ring and spring base
End cap is equipped with outer stationary ring and outer rotating ring, and the outer stationary ring and outer rotating ring are disposed adjacent, set between the axle sleeve, pushing out ring and outer rotating ring
There is the retainer ring for fixed outer rotating ring, spring, the spring base and outer stationary ring are equipped between the throw-out collar, spring base and outer stationary ring
Between be equipped with the 4th sealing ring, between outer rotating ring and axle sleeve be equipped with the 5th sealing ring, between spring base and seal receptacle be equipped with the 6th
Sealing ring and the 7th sealing ring are equipped with the 9th sealing ring between rotating ring and axle sleeve, be equipped on the seal receptacle and spring base interior
The middle part of irrigation channel and seal receptacle is connected with the interior irrigation channel on spring base, the spring base is equipped with outer irrigation channel.
In one preferred embodiment of the utility model, the left end of the axle sleeve is equipped with hexagon-headed bolt.
In one preferred embodiment of the utility model, between the locating piece and spring base, between seal receptacle and spring base
And it is connected by hexagon socket cap head screw between seal receptacle and ontology.
The utility model provides a kind of more flushing type double mechanical seals by improving herein, compared with prior art,
Have the advantages that improve as follows and: the utility model designs simultaneously interior flushing and two kinds of backwashing manners of outer flushing, and interior flushing can change
Kind medium terminal seals external use environment, extends the service life of machine envelope.Outer flushing can be effectively improved the reality of atmosphere terminal envelope
With environment, extend the service life of machine envelope.
Detailed description of the invention
The utility model is further explained with reference to the accompanying drawings and examples:
Fig. 1 is the cross-sectional view of the utility model；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Description of symbols: the first sealing ring 1, axle sleeve 2, the second sealing ring 3, rotating ring 4, stationary ring 5, throw-out collar 6, seal receptacle 7,
Third sealing ring 8, pushing out ring 9, spring base 10, the 4th sealing ring 11, locating piece 12, transmission ring 14, retainer ring 15, hexagon-headed bolt
16, the 5th sealing ring 17, outer rotating ring 18, outer stationary ring 19, spring 20, hexagon socket cap head screw 21, the 6th sealing ring 23, the 7th
Sealing ring 24, the 8th sealing ring 25, the 9th sealing ring 26.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing 1 to Fig. 2, to the skill in the utility model embodiment
Art scheme is clearly and completely described, it is clear that and the described embodiments are only a part of the embodiments of the utility model, and
The embodiment being not all of.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of labour.
The utility model provides a kind of more flushing type double mechanical seals by improving herein, as Figure 1-Figure 2, packet
Axle sleeve 2, primary seal system and seal receptacle 7 are included, the axle sleeve 2 is in hollow structure and is internally provided with the first sealing ring 1, the master
Sealing system is set on axle sleeve 2, and seal receptacle 7 is set in the outside of primary seal system, and the primary seal system includes second close
Seal 3, rotating ring 4, stationary ring 5 and the 8th sealing ring 25, the rotating ring 4 are set in the right end of axle sleeve 2, second sealing ring 3
Between rotating ring 4 and axle sleeve 2, the stationary ring 5 is set on axle sleeve 2 and the right end of stationary ring 5 is bonded with rotating ring 4, and the described 8th is close
Seal 25 is between stationary ring 5 and seal receptacle 7, and the left end of the stationary ring 5 is equipped with throw-out collar 6, and the outer sheath of the seal receptacle 7 is equipped with
Third sealing ring 8, the left end of the axle sleeve 2 are equipped with pushing out ring 9, and the left side of the seal receptacle 7 is equipped with the spring being firmly connected with it
Seat 10, the left end of the axle sleeve 2 is arranged with transmission ring 14, and locating piece 12, institute are equipped between the transmission ring 14 and spring base 10
The left end for stating axle sleeve 2 is arranged with outer stationary ring 19 and outer rotating ring 18, and the outer stationary ring 19 and outer rotating ring 18 are disposed adjacent, the axle sleeve
2, the retainer ring 15 for fixed outer rotating ring 18, the throw-out collar 6, spring base 10 and outer stationary ring are equipped between pushing out ring 9 and outer rotating ring 18
Be equipped with spring 20 between 19, be equipped with the 4th sealing ring 11 between the spring base 10 and outer stationary ring 19, outer rotating ring 18 and axle sleeve 2 it
Between be equipped with the 5th sealing ring 17, between spring base 10 and seal receptacle 7 be equipped with the 6th sealing ring 23 and the 7th sealing ring 24, rotating ring 4
It is equipped with the 9th sealing ring 26 between axle sleeve 2, is equipped with interior irrigation channel and seal receptacle 7 on the seal receptacle 7 and spring base 10
It is connected with the interior irrigation channel on spring base 10, the middle part of the spring base 10 is equipped with outer irrigation channel.
The left end of the axle sleeve 2 is equipped with hexagon-headed bolt 16；Axle sleeve 2 is locked on pump shaft by hexagon-headed bolt 16,
So that axle sleeve 2 is rotated together with pump shaft.
Between the locating piece 12 and spring base 10, between seal receptacle 7 and spring base 10 and between seal receptacle 7 and ontology
Connected by hexagon socket cap head screw 21；By the connection of hexagon socket cap head screw 21, its connection type is simple, simplifies
Connection structure, and convenient for disassembling the component to link together.
When the utility model is used, the right end of axle sleeve 2 is media end, the left end of axle sleeve 2 is atmosphere end, the utility model
In, it is sealed between axle sleeve 2 and pump shaft by the first sealing ring 1, the second sealing ring 3 is for rotating ring 4 with axle sleeve 2 to the close of medium
Envelope, the primary seal system that stationary ring 5, rotating ring 4, the second sealing ring 3 and the 8th sealing ring 25 form can be in the pump of media end
Material sealing, while carrying out following compensation under the action of spring 20, throw-out collar 6 can prevent stationary ring 5 from rotating and can cooperate bullet
Spring 20 and stationary ring 5 carry out following compensation, are sealed between seal receptacle 7 and the pump housing by third sealing ring 8, and pushing out ring 9 can assist outer
Rotating ring 18 preferably floats, and the 4th sealing ring 11 is for the flushing water between spring base 10 and outer stationary ring 19 in external irrigation channel
Sealing, retainer ring 15 is used for the positioning of outer rotating ring 18, and the 5th sealing ring 17 is used between outer rotating ring 18 and axle sleeve 2 externally rinse logical
The sealing of flushing water in road, outer rotating ring 18, outer stationary ring 19 and the 5th sealing ring 17 are formed in the external irrigation channel of sealing structure
Flushing water-stop and being carried out under the promotion of spring 20 follow compensation, spring 20 is for following compensation.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (3)
1. a kind of more flushing type double mechanical seals, it is characterised in that: including axle sleeve (2), primary seal system and seal receptacle
(7), the axle sleeve (2) in hollow structure and is internally provided with the first sealing ring (1), and the primary seal system is set in axle sleeve
(2) on, seal receptacle (7) is set in the outside of primary seal system, and the primary seal system includes the second sealing ring (3), rotating ring
(4), stationary ring (5) and the 8th sealing ring (25), the rotating ring (4) are set in the right end of axle sleeve (2), second sealing ring (3)
Between rotating ring (4) and axle sleeve (2), the stationary ring (5) is set on axle sleeve (2) and the right end of stationary ring (5) and rotating ring (4) are pasted
It closes, the 8th sealing ring (25) is located between stationary ring (5) and seal receptacle (7), and the left end of the stationary ring (5) is equipped with throw-out collar (6),
The outer sheath of the seal receptacle (7) is equipped with third sealing ring (8), and the left end of the axle sleeve (2) is equipped with pushing out ring (9), the sealing
The left side of seat (7) is equipped with the spring base (10) being firmly connected with it, and the left end of the axle sleeve (2) is arranged with transmission ring (14), institute
It states and is equipped with locating piece (12) between transmission ring (14) and spring base (10), the left end of the axle sleeve (2) is arranged with outer stationary ring (19)
With outer rotating ring (18), the outer stationary ring (19) and outer rotating ring (18) are disposed adjacent, the axle sleeve (2), pushing out ring (9) and outer rotating ring
(18) be equipped with the retainer ring (15) for fixed outer rotating ring (18) between, the throw-out collar (6), spring base (10) and outer stationary ring (19) it
Between be equipped with spring (20), equipped with the 4th sealing ring (11) between the spring base (10) and outer stationary ring (19), outer rotating ring (18) and
The 5th sealing ring (17) is equipped between axle sleeve (2), equipped with the 6th sealing ring (23) and the between spring base (10) and seal receptacle (7)
Seven sealing rings (24) are equipped with the 9th sealing ring (26), the seal receptacle (7) and spring base (10) between rotating ring (4) and axle sleeve (2)
On be equipped with interior irrigation channel (27) and seal receptacle (7) is connected with the interior irrigation channel (27) on spring base (10), the bullet
The middle part of spring abutment (10) is equipped with outer irrigation channel (28).
2. more flushing type double mechanical seals according to claim 1, it is characterised in that: the left end of the axle sleeve (2)
Equipped with hexagon-headed bolt (16).
3. more flushing type double mechanical seals according to claim 1, it is characterised in that: the locating piece (12) and bullet
Between spring abutment (10), pass through interior hexagonal cylindrical between seal receptacle (7) and spring base (10) and between seal receptacle (7) and ontology
Head screw (21) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820849703.5U CN208268412U (en) | 2018-06-04 | 2018-06-04 | A kind of more flushing type double mechanical seals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820849703.5U CN208268412U (en) | 2018-06-04 | 2018-06-04 | A kind of more flushing type double mechanical seals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208268412U true CN208268412U (en) | 2018-12-21 |
Family
ID=64688490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820849703.5U Active CN208268412U (en) | 2018-06-04 | 2018-06-04 | A kind of more flushing type double mechanical seals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208268412U (en) |
-
2018
- 2018-06-04 CN CN201820849703.5U patent/CN208268412U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |