CN206112087U - Axial lip seal device for rotation axis - Google Patents
Axial lip seal device for rotation axis Download PDFInfo
- Publication number
- CN206112087U CN206112087U CN201621093363.5U CN201621093363U CN206112087U CN 206112087 U CN206112087 U CN 206112087U CN 201621093363 U CN201621093363 U CN 201621093363U CN 206112087 U CN206112087 U CN 206112087U
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- CN
- China
- Prior art keywords
- ring
- spring
- axial lip
- face
- compression spring
- 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.)
- Withdrawn - After Issue
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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses an axial lip seal device for rotation axis, including non - compensation ring, compensation ring, compensated ring adaptor and the compression spring that the order is connected, the up end NOT AND compensation ring terminal surface laminating of compensation ring, lower terminal surface is fixed by the compensated ring adaptor, the lower terminal surface and the compression spring laminating of compensated ring adaptor, the compensation ring is axial lip seal circle, and its up end is the high infundibulate seal face in the low outer lane of inner circle, the little horizontal V -arrangement spring groove of imperial palace outside the back of infundibulate seal face is equipped with, dress self -tightening spring is joined in marriage to V -arrangement spring inslot, and compression spring is combination compression spring last boss that annular ring, interval set up terminal surface about annular ring boss under and, the difficult emergence inflation of the device, sclerosis phenomenon can adapt to the roughness of axle and the change of the degree of eccentricity, and be good to the off -centre ability of following, and can bear the high pressure, and the leakproofness is good in high speed, high temperature, high dirt, the sealed medium environment of corruption, and the reliability is high, long service life, simple structure and easy the installation.
Description
Technical field
This utility model is related in machine-building be used for the sealing member of rotary shaft class, specifically a kind of rotary shaft axial direction lip
Shape sealing device.
Background technology
In the contact sealing of existing rotation axis seal, typically there are two kinds, a kind of radial seal is with gum elastic and gathers
Sealing function, referred to as oil sealing are played in the surface of the lip contact rotary shaft of ptfe plastic, and another kind of axial seal is with two
Hcird silica carbide, graphite, ceramics, alloy, steel, bronze, cast iron materials make two ground seal faces in axle spring
Pressure is sent an invitation card and closes the sealing mechanism for sliding, referred to as mechanical seal.Although being all to reach sealing purpose by different way, also not
With some shortcomings of the presence of degree, the such as sealed lip of gum elastic is easily expanded in lubrication oil medium, hardens phenomenon.
Poly fourfluoroplastics sealed lip is without the elasticity of compression, it is impossible to adapt to the roughness of axle and the change of the degree of eccentricity, dynamic bias is followed
Ability, easily hinders axle, and not pressure, and the carborundum and ceramic-seal ring of mechanical seal is broken, and anti-heavy duty is not fine.Stone
The seal face of black sealing ring is also easy to produce dilatancy and reduces seal face flatness in long-term friction, causes sealing medium
From sealing interface leakage.Using rubber compression axial force failure during floating seal, but use in heavy caliber end face seal
Phenomenon is more universal, it is difficult to produce a desired effect.
Utility model content
For the deficiencies in the prior art, this utility model provides a kind of rotary shaft axial lip shape seal device, the sealing
Circle is not susceptible to expansion, hardening phenomenon, adapts to the roughness of axle and the change of the degree of eccentricity, good to eccentric follow-up capability, and energy
High pressure is born, the good airproof performance in high speed, high temperature, Gao Chen, corrosion sealing medium environment, reliability is high, long service life, structure
It is simple and easy to install.
Realizing the technical scheme of this utility model purpose is：
A kind of rotary shaft with axial lip shape seal device, including the uncompensated ring, compensation ring, compensated ring adaptor being linked in sequence and
Compression spring, the upper surface for compensating ring is fitted with uncompensated ring end face, and lower surface is fixed by compensated ring adaptor, the lower end of compensated ring adaptor
Face is fitted with compression spring, unlike the prior art,
Described compensation ring is axial lip-type packing, and its upper surface is the high infundibulate seal face in the low outer ring of inner ring,
The little horizontal V-arrangement spring groove of outer imperial palace is provided with the back side of infundibulate seal face, self-tightening spring is equipped with V-arrangement spring groove,
Described compression spring is combination compression spring, including annular ring, is disposed on the upper of annular ring upper and lower end face
Boss and lower convex platform.
Described axial lip-type packing, is by based on engineering plastics polytetrafluoroethylplastic plastic, adding filler Jing moldings
Sinter molding.
Described axial lip-type packing, the polytetrafluoroethylplastic plastic for using is 100 with the weight distribution ratio of filler：40-
50。
Described infundibulate seal face, the high gradient in the low outer ring of inner ring is 25-50 °.
Described self-tightening spring, is that the spring by made by spring steel wire joins end to end and has certain radially from the spring of clamp force.
The annular ring of described combination compression spring is stamped to form by steel spring plate or steel plate block.
Described convex platform and lower convex platform, are made up of rubber, bag abdomen or are wrapped on the upper and lower end face of annular ring respectively.
Annular ring, in contact corrosion sealing medium, applies thereon one layer of drying adhesive, then the sulfuration of bag abdomen polyfluoroprene
Molding is formed；
Described compensated ring adaptor, is removed into the metallic framework Jing for having in-flanges or flanging by steel plate punch press stretch process
Oil, processing of rust removing, bag abdomen rubber compression molding, in-flanges and flanging are equipped with what is matched with axial lip-type packing lower surface
Radial lip seal circle.
Good effect of the present utility model is that the elastic force for combining compression spring generation makes the axial direction being fixed on compensated ring adaptor
The long-term end face for fitting to uncompensated ring of lip-type packing, the V-arrangement spring groove of axial lip-type packing is conducive to sealing medium
The heat that coolant seal end-face friction is produced, sealing medium pressure-bearing is more beneficial for axial lip-type packing in V-arrangement spring rooved face
The bearing capacity of end face, the also slide anteroposterior effect beneficial to spring adjusts sealing interface and acts on than pressure；Make axial lip-type packing
Infundibulate seal face fit with uncompensated ring seal face slip when to be difficult tension overheated.In seal erosion medium certainly
Tight spring adopts polyfluoroprene O-ring, combines the annular ring of compression spring, the metallic framework of compensated ring adaptor and all bonds one layer of corrosion resistant elasticity
Polyfluoroprene, is effectively isolated the effect of Korrosionsmedium, and paving helps sealing to be also adopted by corrosion resistant elasticity polyfluoroprene.By engineering plastics politef
Infundibulate seal face meeting under combination compression spring and self-tightening spring long term of axial lip-type packing made by plastics
Deformation laminating slide on the abrasion groove seal face of uncompensated ring, until axial lip packing end wear it is complete；Axial lip
Shape sealing ring is to be lubricated by polytetrafluoro filled solid and reinforcer, have good wearability, anti-attrition, stability, carry significantly
High service life and reliability of the rotary shaft with axial lip shape seal device.
Description of the drawings
Fig. 1 is a kind of rotary shaft axial direction lip shape seal device vertical section structure schematic diagram of the present utility model；
Fig. 2 is single lip axial direction lip-type packing structural representation；
Fig. 3 is lips axial direction lip-type packing structural representation；
Fig. 4 is combination compression spring structural representation；
In figure, 1. 3. compensated ring adaptor of the compensation ring of uncompensated ring 2. 4. combines the sealing of the infundibulate of compression spring 5.
The metallic framework of 10. lower convex platform of end face 6. V-arrangement spring groove, 7. self-tightening spring, 8. annular ring, 9. convex platform 11
12. radial lip seal circles.
Specific embodiment
This utility model content is further elaborated with reference to the accompanying drawings and examples, but is not to this utility model
Restriction.
Embodiment：
As shown in figure 1, a kind of rotary shaft is with axial lip shape seal device, including the uncompensated ring 1, compensation ring that are linked in sequence
2nd, compensated ring adaptor 3 and compression spring 4, the upper surface for compensating ring 2 is fitted with the end face of uncompensated ring 1, compensates the lower surface quilt of ring 2
Compensated ring adaptor 3 is fixed, and the lower surface of compensated ring adaptor 3 is fitted with the convex platform 9 of compression spring 4.
As shown in Fig. 2 described compensation ring 2 is single lip axial direction lip-type packing structural representation, its upper surface is inner ring
The high infundibulate seal face 5 in low outer ring, at the back side of infundibulate seal face 5 the little horizontal V-arrangement spring groove 6 of outer imperial palace, V-arrangement are provided with
Self-tightening spring 7 is equipped with spring groove 6.
As shown in figure 3, described compensation ring 2 can also be lips axial direction lip-type packing structural representation, two are provided with
Individual axial lip-type packing, two axial lip-type packings are arranged in parallel, axial lip-type packing and axial lip-type packing it
Between use rubber seal rings for seal, the upper surface of each axial lip-type packing is the high infundibulate seal face 5 in the low outer ring of inner ring,
Its gradient is 45 °, is provided with the little horizontal V-arrangement spring groove 6 of outer imperial palace, V-arrangement spring groove 6 at the back side of infundibulate seal face 5 and matches somebody with somebody
Dress self-tightening spring 7.
As shown in figure 4, described compression spring 4 is combination compression spring, including annular ring 8, it is disposed on annular ring
The convex platform 9 and lower convex platform 10 of upper and lower end face.
Described axial lip-type packing, is by based on engineering plastics polytetrafluoroethylplastic plastic, adding filler Jing moldings
Sinter molding, polytetrafluoroethylplastic plastic is 100 with the weight distribution ratio of filler：45, filler is the lubricant and reinforcing agent of solid
The techniques such as compressed molding sintering cooling are made；The back side of infundibulate seal face lathe process forming V-shape spring groove, V-arrangement bullet
Self-tightening spring in spring groove makes infundibulate seal face have the elasticity of appropriateness.
Described self-tightening spring 7, is that the spring by made by spring steel wire joins end to end and has certain radially from the spring of clamp force.
The annular ring 8 of described combination compression spring is stamped to form by steel spring plate or steel plate block,
Described convex platform 9 and lower convex platform 10, are made up of rubber, bag abdomen or are wrapped in the upper and lower end face of annular ring 8 respectively
On, to obtain bigger elastic force, need to only increase the diameter of annular ring 8 and the quantity of increase boss, can just reach effect.
Annular ring 8, in contact corrosion sealing medium, applies thereon one layer of drying adhesive, then bag abdomen polyfluoroprene sulfur
Change molding to form；
Described compensated ring adaptor 3, is into the Jing of metallic framework 11 for having in-flanges or flanging by steel plate punch press stretch process
Oil removing, processing of rust removing, bag abdomen rubber compression molding, in-flanges and flanging are equipped with and are matched with axial lip-type packing lower surface
Radial lip seal circle 12.
When using, successively uncompensated ring 1, compensation ring 2, compensated ring adaptor 3 and compression spring 4 be fitted to into rotary shaft in order
Axial lip shape seal device is used, the elastic force produced after the stress of compression spring 4 makes convex platform 9 and lower convex platform 10 in dislocation compression
Under make annular ring 8 become corrugated, convex platform 9 withstands the end face of compensated ring adaptor 3, makes the axial lip being fixed on compensated ring adaptor 3
The infundibulate seal face 5 of shape sealing ring 2 fit it is non-compensation 1 end face, with the increase of compression stress, seal interface is with increasing
Plus, sealing effectiveness increases.
Claims (5)
1. a kind of rotary shaft including the uncompensated ring being linked in sequence, compensates ring, compensated ring adaptor and pressure with axial lip shape seal device
Contracting spring, the upper surface for compensating ring is fitted with uncompensated ring end face, and lower surface is fixed by compensated ring adaptor, the lower surface of compensated ring adaptor
Fit with compression spring, it is characterised in that
Described compensation ring is axial lip-type packing, and its upper surface is the high infundibulate seal face in the low outer ring of inner ring, in leakage
The back side of bucket shape seal face is provided with the little horizontal V-arrangement spring groove of outer imperial palace, and self-tightening spring is equipped with V-arrangement spring groove,
Described compression spring is combination compression spring, including annular ring, is disposed on the convex platform of annular ring upper and lower end face
And lower convex platform.
2. the rotary shaft according to power requires 1 is with axial lip shape seal device, it is characterised in that described infundibulate sealed end
Face, the high gradient in the low outer ring of inner ring is 25-50 °.
3. the rotary shaft according to power requires 1 is with axial lip shape seal device, it is characterised in that described self-tightening spring, is
The spring by made by spring steel wire joins end to end certain radially from the spring of clamp force.
4. the rotary shaft according to power requires 1 is with axial lip shape seal device, it is characterised in that described combination compression spring
Annular ring, be stamped to form by steel spring plate or steel plate block.
5. the rotary shaft according to power requires 1 is with axial lip shape seal device, it is characterised in that described convex platform and under it is convex
Platform, is made up of rubber, bag abdomen or is wrapped on the upper and lower end face of annular ring respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621093363.5U CN206112087U (en) | 2016-09-30 | 2016-09-30 | Axial lip seal device for rotation axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621093363.5U CN206112087U (en) | 2016-09-30 | 2016-09-30 | Axial lip seal device for rotation axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206112087U true CN206112087U (en) | 2017-04-19 |
Family
ID=58521258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621093363.5U Withdrawn - After Issue CN206112087U (en) | 2016-09-30 | 2016-09-30 | Axial lip seal device for rotation axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206112087U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286840A (en) * | 2016-09-30 | 2017-01-04 | 桂林端面油封科技有限公司 | A kind of axial lip shape seal device of rotary shaft |
| CN114856720A (en) * | 2022-04-20 | 2022-08-05 | 浙大宁波理工学院 | Sealing device for ultra-high-speed turbine rotor |
-
2016
- 2016-09-30 CN CN201621093363.5U patent/CN206112087U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286840A (en) * | 2016-09-30 | 2017-01-04 | 桂林端面油封科技有限公司 | A kind of axial lip shape seal device of rotary shaft |
| CN106286840B (en) * | 2016-09-30 | 2018-02-09 | 桂林端面油封科技有限公司 | A kind of axial lip shape seal device of rotary shaft |
| WO2018059249A1 (en) * | 2016-09-30 | 2018-04-05 | 桂林端面油封科技有限公司 | Axial lip sealing device for rotating shaft |
| CN114856720A (en) * | 2022-04-20 | 2022-08-05 | 浙大宁波理工学院 | Sealing device for ultra-high-speed turbine rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170419 Effective date of abandoning: 20180209 |