CN208816688U - A kind of claw type liquid labyrinth seal - Google Patents
A kind of claw type liquid labyrinth seal Download PDFInfo
- Publication number
- CN208816688U CN208816688U CN201821228633.8U CN201821228633U CN208816688U CN 208816688 U CN208816688 U CN 208816688U CN 201821228633 U CN201821228633 U CN 201821228633U CN 208816688 U CN208816688 U CN 208816688U
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- CN
- China
- Prior art keywords
- labyrinth
- quiet
- component
- dynamic
- capsule
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- 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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Abstract
The utility model discloses a kind of claw type liquid labyrinth seals, including shaft, the outer middle side part of shaft is surrounded with dynamic labyrinth component, the outer sheath of dynamic labyrinth component is equipped with outer housing, hydraulic seal cementing port is provided on outer housing, the middle inside of outer housing is surrounded with symmetrical quiet labyrinth component, and quiet labyrinth component matches with dynamic labyrinth component, the inside both ends of outer housing are provided with symmetrical installation part, the side of installation part is provided with and the capsule on quiet labyrinth component, matched metallic framework is provided in capsule, and metallic framework is connect with the side of quiet labyrinth component, the side that capsule is located at shaft is provided with lip end.The utility model has the advantages that the labyrinth circuit formed using dynamic labyrinth component and quiet labyrinth component, increase the contact surface between dynamic labyrinth dog collar and quiet labyrinth dog collar, and then the amount that liquid labyrinth area is formed by film is increased, so that air-flow is more difficult to break through the sealing of sealing element, sealing effect is good.
Description
Technical field
The utility model relates to labyrinth seal technical fields, it particularly relates to a kind of claw type liquid labyrinth seal.
Background technique
Labyrinth seal is that several belt sealing teeth being arranged successively are set around shaft, is formed between tooth and tooth a series of
Shut off gap and expansion cavity, and sealed medium generates the mesh that throttle effect reaches Drain Resistance when through the gap in tortuous labyrinth
, since, there are gap, no solid contact without lubrication, and allows to have thermal expansion between the rotor and casing of labyrinth seal, adapt to
High temperature, high pressure, the occasion of high speed-frequency, still, just due to the These characteristics of labyrinth seal, so that it needs high-precision situation
When lower air seal, it is extremely difficult to required precision and sealing effect.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Utility model content
It is existing to overcome the utility model proposes a kind of claw type liquid labyrinth seal for the problems in the relevant technologies
Above-mentioned technical problem present in the relevant technologies.
The technical solution of the utility model is achieved in that
A kind of claw type liquid labyrinth seal, including shaft, the outer middle side part of the shaft are surrounded with dynamic labyrinth component,
The outer sheath of the dynamic labyrinth component is equipped with outer housing, is provided with hydraulic seal cementing port, the outer housing on the outer housing
Middle inside be surrounded with symmetrical quiet labyrinth component, and the quiet labyrinth component and the dynamic labyrinth component phase
Match, the inside both ends of the outer housing are provided with symmetrical installation part, and the side of the installation part is provided with and the quiet fan
Capsule on the component of palace is provided with matched metallic framework, and the metallic framework and the quiet fan in the capsule
The side of palace component connects, and the side that the capsule is located at the shaft is provided with lip end；Wherein, the dynamic labyrinth component packet
The dynamic labyrinth fixed ring being set in the shaft is included, the outer sheath of the dynamic labyrinth fixed ring is equipped with dynamic labyrinth connection ring, institute
It states and is provided with several dynamic labyrinth dog collars on the inside of the connection ring of labyrinth；The quiet labyrinth component includes being located on the outer housing
Quiet labyrinth fixed ring, the side that the quiet labyrinth fixed ring is located at the dynamic labyrinth fixed ring is provided with quiet labyrinth connection ring,
The quiet labyrinth dog collar matched with the dynamic labyrinth dog collar is provided in the quiet labyrinth connection ring.
Further, the side angle that the capsule is located at the shaft is provided with dust guard.
Further, spring is provided between the metallic framework and the capsule.
Further, the side of the metallic framework is provided with the bumping post one in the spring, the capsule and institute
It states the opposite side of bumping post one and is provided with the bumping post two in the spring.
Further, the metallic framework is L-shaped structure, and the metallic framework and the installation part pass through nut for institute
Capsule is stated to fix.
Further, protrusion is provided on the inside of the capsule.
The utility model has the following beneficial effects: the ejection that interior seal assembly stops air-flow is first passed around when being sealed,
Gas flow is reduced, and a part of air-flow is blocked on the outside of seal assembly, and another part air-flow enters dynamic labyrinth group
In the sealed circuit of part and quiet labyrinth component composition, under the effect of the pressure, liquid sealant movement is push, due to moving labyrinth group
Spacing is small between part and quiet labyrinth component, and the resistance that liquid sealant is formed is larger, and with the increase of pressure, gas is gradually pushed
Liquid sealant, liquid sealant are walked under the action of air-flow along sealed circuit, and labyrinth effect is generated, since labyrinth is imitated
The effect answered, liquid sealant is heated so that the viscosity of liquid sealant and elasticity are enhanced, so that dynamic labyrinth group
The film toughness that faying face between part and quiet labyrinth component is formed is stronger, and air-flow is more difficult to be passed through, and does manual work and expends when air-flow
When energy breaks through film, due to the rotation of shaft, rotation of the labyrinth component in quiet labyrinth component is moved, new sealed thin is formed
Film, when air-flow finally goes out liquid labyrinth region, reaches exterior seal assembly, since air-flow drives hydraulic seal in liquid labyrinth
Glue flowing, and the interaction between dynamic labyrinth component and quiet labyrinth component, so that shape between fraction and liquid sealant
At bubble stream, and remaining flowed energy further decreases, and since liquid sealant is under the action of air-flow, forms high temperature and pressure
Liquid sealant, the liquid sealant of high temperature and pressure is mobile to exterior seal assembly and interior seal assembly, is depressurized, in shaft
Drive under, contact surface between the lip end of exterior seal assembly and shaft forms diaphragm seal, the lip end of interior seal assembly
Contact surface between shaft also forms diaphragm seal so that gas enter it is more difficult in the circuit of liquid labyrinth, when entering
Gas in the circuit of liquid labyrinth is more, and the function that liquid sealant is done is more, and in the environment of high pressure, activity is more preferable, sticky
Degree is more excellent, and internal gas is more difficult to flee from, and then air-flow can effectively be prevented to exchange with extraneous, meanwhile, using dynamic labyrinth group
The labyrinth circuit that part and quiet labyrinth component are formed, increases the contact surface between dynamic labyrinth dog collar and quiet labyrinth dog collar, Jin Erzeng
Liquid labyrinth area has been added to be formed by the amount of film, so that air-flow is more difficult to break through the sealing of sealing element, sealing effect is good.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram according to a kind of claw type liquid labyrinth seal of the utility model embodiment.
In figure:
1, shaft；2, labyrinth component is moved；3, outer housing；4, hydraulic seal cementing port；5, quiet labyrinth component；6, installation part；
7, capsule；8, metallic framework；9, lip end；10, labyrinth fixed ring is moved；11, labyrinth connection ring is moved；12, labyrinth dog collar is moved；13,
Quiet labyrinth fixed ring；14, quiet labyrinth connection ring；15, quiet labyrinth dog collar；16, dust guard；17, spring；18, bumping post one；19, it keeps off
Column two；20, raised.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained, all belongs to
In the range of the utility model protection.
Embodiment according to the present utility model provides a kind of claw type liquid labyrinth seal.
As shown in Figure 1, according to the claw type liquid labyrinth seal of the utility model embodiment, including shaft 1, the shaft
1 outer middle side part is surrounded with dynamic labyrinth component 2, and the outer sheath of the dynamic labyrinth component 2 is equipped with outer housing 3, the outer housing 3
On be provided with hydraulic seal cementing port 4, the middle inside of the outer housing 3 is surrounded with symmetrical quiet labyrinth component 5, and
The quiet labyrinth component 5 matches with the dynamic labyrinth component 2, and the inside both ends of the outer housing 3 are provided with symmetrical peace
Piece installing 6, the side of the installation part 6 be provided with the capsule 7 on the quiet labyrinth component 5, be provided with therewith in the capsule 7
The metallic framework 8 to match, and the metallic framework 8 is connect with the side of the quiet labyrinth component 5, the capsule 7 is located at institute
The side for stating shaft 1 is provided with lip end 9；Wherein, the dynamic labyrinth component 2 includes the dynamic labyrinth being set in the shaft 1
Fixed ring 10, the outer sheath of the dynamic labyrinth fixed ring 10 are equipped with dynamic labyrinth connection ring 11, the dynamic labyrinth connection ring 11 it is interior
Side is provided with several dynamic labyrinth dog collars 12；The quiet labyrinth component 5 includes the quiet labyrinth fixed ring on the outer housing 3
13, the side that the quiet labyrinth fixed ring 13 is located at the dynamic labyrinth fixed ring 10 is provided with quiet labyrinth connection ring 14, described quiet
The quiet labyrinth dog collar 15 matched with the dynamic labyrinth dog collar 12 is provided in labyrinth connection ring 14.
By means of the above-mentioned technical proposal of the utility model, when being sealed, first passes around interior seal assembly and stop gas
The ejection of stream, gas flow are reduced, and a part of air-flow is blocked on the outside of seal assembly, and another part air-flow enters
Dynamic labyrinth component 2 under the effect of the pressure, pushes liquid sealant movement in the sealed circuit of quiet labyrinth component 5 composition, by
Spacing is small between dynamic labyrinth component 2 and quiet labyrinth component 5, and the resistance that liquid sealant is formed is larger, with the increase of pressure,
Gas gradually pushes liquid sealant, and liquid sealant is walked under the action of air-flow along sealed circuit, generates labyrinth effect
It answers, due to the effect of labyrinth effect, liquid sealant is heated so that the viscosity of liquid sealant and elasticity are enhanced, from
And the film toughness that the faying face between dynamic labyrinth component 2 and quiet labyrinth component 5 is formed is stronger, air-flow is more difficult logical
It crosses, when air-flow workmanship, which expends energy, breaks through film, due to the rotation of shaft, moves labyrinth component 2 and turn in quiet labyrinth component 5
It is dynamic, new sealing film is formed, when air-flow finally goes out liquid labyrinth region, reaches exterior seal assembly, since air-flow is in liquid
Body labyrinth drives liquid sealant flowing, and moves the interaction between labyrinth component 2 and quiet labyrinth component 5, so that part gas
Bubble stream is formed between stream and liquid sealant, and remaining flowed energy further decreases, since liquid sealant is in air-flow
Under the action of, form the liquid sealant of high temperature and pressure, the liquid sealant of high temperature and pressure is to exterior seal assembly and interior sealing group
Part is mobile, is depressurized, under the drive of shaft 1, the contact surface between the lip end 9 and shaft 1 of exterior seal assembly forms thin
Film sealing, the contact surface between the lip end 9 and shaft 1 of interior seal assembly also forms diaphragm seal, so that gas enters liquid
More difficult in the circuit of labyrinth, when the gas entered in the circuit of liquid labyrinth is more, the function that liquid sealant is done is more, in height
In the environment of pressure, activity is more preferable, and viscosity is more excellent, and internal gas is more difficult to flee from, and then can effectively prevent air-flow and outer
The exchange on boundary.
In one embodiment, for above-mentioned capsule 7, the side angle that the capsule 7 is located at the shaft 1 is provided with anti-
Dirt part 16 can effectively prevent dust and enter in the sealed circuit that dynamic labyrinth component 2 is formed with quiet labyrinth component 5.In practical application,
Dust guard 16 should have lesser frictional force, reduce the rotary resistance of shaft 1.
In one embodiment, for above-mentioned metallic framework 8 and capsule 7, the metallic framework 8 and the capsule 7
Between be provided with spring 17, the effective leakproofness for increasing sealed circuit, and capsule 7 is prevented to be squeezed generation relaxation for a long time,
So that there is gap in lip end 9 and shaft 1, so as to cause the leakage of liquid sealant.In practical application, the normality of spring 17 is
Half squeezed state.
In one embodiment, for above-mentioned metallic framework 8 and capsule 7, the side of the metallic framework 8 is provided with
Bumping post 1 in the spring 17, the capsule 7 side opposite with the bumping post 1 are provided with positioned at the bullet
Bumping post 2 19 in spring 17 prevents spring 17 to be squeezed the displacement that is deformed or falls off for a long time.In practical application, bumping post one
The distance between 18 and bumping post 2 19 should be greater than spring and are squeezed at a distance from after-contraction, prevent lip end 9 from excessively squeezing shaft 1
The frictional force between shaft 1 and lip end 9 is caused to become larger.
In one embodiment, for above-mentioned metallic framework 8, the metallic framework 8 is L-shaped structure, and the gold
It is by nut that the capsule 7 is fixed to belong to skeleton 8 and the installation part 6, so that the stability of capsule 7 is stronger.In practical application,
Metallic framework 8 and the junction of capsule 7 can be pasted together, and prevent that liquid sealant is caused to enter from gap.
In one embodiment, for above-mentioned quiet labyrinth component 5, the inside of the capsule 7 is provided with protrusion 20, increases
Seal up the bending resistance that shell 7 is located at 9 side of lip end, prevent the loose position of capsule 7 too long, bending resistance compared with
It is weak, lead to poor sealing effect.
In conclusion, when being sealed, first passing around interior sealing group by means of the above-mentioned technical proposal of the utility model
Part stops the ejection of air-flow, and gas flow is reduced, and a part of air-flow is blocked on the outside of seal assembly, and another part gas
Dynamic labyrinth component 2 is flowed into in the sealed circuit of quiet labyrinth component 5 composition, under the effect of the pressure, pushes hydraulic seal
Glue is mobile, and since spacing is small between dynamic labyrinth component 2 and quiet labyrinth component 5, the resistance that liquid sealant is formed is larger, with pressure
The increase of power, gas gradually push liquid sealant, and liquid sealant is walked under the action of air-flow along sealed circuit, produce
Raw labyrinth effect, due to the effect of labyrinth effect, liquid sealant is heated so that the viscosity of liquid sealant and elasticity obtain
Enhancing, so that the film toughness that the faying face between dynamic labyrinth component 2 and quiet labyrinth component 5 is formed is stronger, air-flow is less
It is easy to pass through, when air-flow workmanship, which expends energy, breaks through film, due to the rotation of shaft, moves labyrinth component 2 in quiet labyrinth component 5
Interior rotation forms new sealing film, when air-flow finally goes out liquid labyrinth region, reaches exterior seal assembly, due to gas
Stream drives liquid sealant flowing in liquid labyrinth, and moves the interaction between labyrinth component 2 and quiet labyrinth component 5, so that
Bubble stream is formed between fraction and liquid sealant, and remaining flowed energy further decreases, due to liquid sealant
Under the action of air-flow, the liquid sealant of high temperature and pressure is formed, the liquid sealant of high temperature and pressure is to exterior seal assembly and interior
Seal assembly is mobile, is depressurized, the contact surface under the drive of shaft 1, between the lip end 9 and shaft 1 of exterior seal assembly
Form diaphragm seal, the contact surface between the lip end 9 and shaft 1 of interior seal assembly also forms diaphragm seal so that gas into
Enter more difficult in the circuit of liquid labyrinth, when the gas entered in the circuit of liquid labyrinth is more, the function that liquid sealant is done is got over
More, in the environment of high pressure, activity is more preferable, and viscosity is more excellent, and internal gas is more difficult to flee from, and then can effectively prevent gas
It flows and is exchanged with extraneous, meanwhile, the labyrinth circuit formed using dynamic labyrinth component 2 and quiet labyrinth component 5 increases dynamic labyrinth pawl
Contact surface between ring 12 and quiet labyrinth dog collar 15, and then the amount that liquid labyrinth area is formed by film is increased, so that air-flow
It is more difficult to break through the sealing of sealing element, sealing effect is good.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. a kind of claw type liquid labyrinth seal, which is characterized in that including shaft (1), the outer middle side part of the shaft (1) surround and sets
It is equipped with dynamic labyrinth component (2), the outer sheath of the dynamic labyrinth component (2) is equipped with outer housing (3), is arranged on the outer housing (3)
Having hydraulic seal cementing port (4), the middle inside of the outer housing (3) is surrounded with symmetrical quiet labyrinth component (5), and
The quiet labyrinth component (5) matches with the dynamic labyrinth component (2), and the inside both ends of the outer housing (3) are provided with relatively
The installation part (6) of title, the side of the installation part (6) are provided with and the capsule (7) on the quiet labyrinth component (5), the envelope
It is provided with matched metallic framework (8) in shell (7), and the metallic framework (8) and the one of the quiet labyrinth component (5)
Side connection, the side that the capsule (7) is located at the shaft (1) are provided with lip end (9), wherein the dynamic labyrinth component (2)
Including the dynamic labyrinth fixed ring (10) being set on the shaft (1), the outer sheath of the dynamic labyrinth fixed ring (10) is equipped with dynamic
Labyrinth connection ring (11) is provided with several dynamic labyrinth dog collar (12) on the inside of the dynamic labyrinth connection ring (11), in addition, described
Quiet labyrinth component (5) includes the quiet labyrinth fixed ring (13) on the outer housing (3), quiet labyrinth fixed ring (13) position
The side of the dynamic labyrinth fixed ring (10) is provided with quiet labyrinth connection ring (14), is arranged on the quiet labyrinth connection ring (14)
There is the quiet labyrinth dog collar (15) matched with the dynamic labyrinth dog collar (12).
2. a kind of claw type liquid labyrinth seal according to claim 1, which is characterized in that the capsule (7) is located at institute
The side angle for stating shaft (1) is provided with dust guard (16).
3. a kind of claw type liquid labyrinth seal according to claim 1, which is characterized in that the metallic framework (8) with
Spring (17) are provided between the capsule (7).
4. a kind of claw type liquid labyrinth seal according to claim 3, which is characterized in that the metallic framework (8)
Side be provided with the bumping post one (18) in the spring (17), the capsule (7) and the bumping post one (18) are opposite
Side is provided with the bumping post two (19) in the spring (17).
5. a kind of claw type liquid labyrinth seal according to claim 1, which is characterized in that the metallic framework (8) is L
Shape structure, and the metallic framework (8) and the installation part (6) are fixed by the capsule (7) by nut.
6. a kind of claw type liquid labyrinth seal according to claim 1, which is characterized in that the inside of the capsule (7)
It is provided with raised (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821228633.8U CN208816688U (en) | 2018-08-01 | 2018-08-01 | A kind of claw type liquid labyrinth seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821228633.8U CN208816688U (en) | 2018-08-01 | 2018-08-01 | A kind of claw type liquid labyrinth seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208816688U true CN208816688U (en) | 2019-05-03 |
Family
ID=66272157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821228633.8U Expired - Fee Related CN208816688U (en) | 2018-08-01 | 2018-08-01 | A kind of claw type liquid labyrinth seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208816688U (en) |
-
2018
- 2018-08-01 CN CN201821228633.8U patent/CN208816688U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190503 Termination date: 20200801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |