CN107120434A - The rotating shaft lip-shaped sealing structure of micro- texture is opened up with axle surface - Google Patents
The rotating shaft lip-shaped sealing structure of micro- texture is opened up with axle surface Download PDFInfo
- Publication number
- CN107120434A CN107120434A CN201710467420.4A CN201710467420A CN107120434A CN 107120434 A CN107120434 A CN 107120434A CN 201710467420 A CN201710467420 A CN 201710467420A CN 107120434 A CN107120434 A CN 107120434A
- Authority
- CN
- China
- Prior art keywords
- texture
- micro
- lip
- rotating shaft
- axle surface
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3244—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Abstract
A kind of rotating shaft lip-shaped sealing structure that micro- texture is opened up with axle surface, directional micro- texture is circumferentially opened up on the axle surface at lip packing air side lip, the micro- Texture circumferential and axial of directionality are uniformly distributed, and the adjacent micro- texture of two annulus distributes alternately.The present invention provide it is a kind of with self-cleaning function, increase the service life, lift-off seal performance have axle surface be provided with micro- texture rotating shaft lip-shaped sealing structure.
Description
Technical field
The present invention relates to rubber-plastic sealing field, especially a kind of rotating shaft lip-shaped sealing structure, the axle surface of its air side
Open up micro- texture.Lip packing available for rotating machineries such as various compressors, bearing housing, pumps.
Background technology
Lip packing is a kind of elastomeric seal with self sealing action, also known as oil sealing.Because its is simple in construction, price
Cheap many advantages, such as, it is widely used in all kinds of rotating machineries.Oil sealing in use, oil sealing lip and rotary shaft table
A layer fluid dynamic pressure oil film can be formed between face, to play lubrication, slows down oil sealing abrasion.Oil film is too small, lip and axle table
Dry friction, aggravation oil sealing abrasion occur for face；Oil film is excessive, and oil sealing is leaked.In engineering, oil sealing is in actual use
Often because air side fluid can not be excluded in time, cause suspension in air easily to adhere to and gather, revolved along with the high speed of axle
Turn this kind of foreign matter and be easily brought into sealed lip, form abrasive wear, and then aggravate sealing lip and wear and tear and cause seal failure, therefore
Propose that one kind can remove leakage fluid in time, avoid the effective ways of " sheltering evil people and countenance evil practices " near rotating shaft surface lip from just seeming
It is particularly significant and urgent.
Surface Texture refers to process the points such as nick hole or very low power with certain size and arrangement on a solid surface
Battle array.Surface of solids micro-geometry is constructed based on Surface Texture technology and improves surface free energy and is effectively improved material surface
Wetability, realizes super-hydrophobic or super hydrophilic characteristic.Wherein, superhydrophobic characteristic due to its have stronger practicality automatically cleaning,
There is extremely wide application prospect in the field such as fluid drag-reduction, freezing, anticorrosive.At present, lip is realized using micro- texture technology
The application of type sealing rotary shaft self-cleaning surface function has no report.Based on this, the present invention proposes a kind of rotating shaft lip-shaped sealing
Air side has the micro- texture in axle surface of self-cleaning function, to tackle the problem of lip packing air side easily " sheltering evil people and countenance evil practices ".
The content of the invention
In order to overcome existing lip seal configuration in use without self-cleaning function, service life is shorter, sealing
Can poor deficiency, the present invention provide it is a kind of with self-cleaning function, increase the service life, lift-off seal performance has an axle table
Face opens up the rotating shaft lip-shaped sealing structure of micro- texture.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of rotating shaft lip-shaped sealing structure that micro- texture is opened up with axle surface, close to lip packing air side lip
The axle surface at place circumferentially opens up directional micro- texture, and the micro- Texture circumferential and axial of directionality are uniformly distributed, and adjacent
The micro- texture of two annulus distributes alternately.
Further, annular micro- texture area axial length be 3~5mm, described micro- texture be opened in sealed lip 0.5~
1mm air side.Texture is not opened up at sealing lip.
Further, the directionality micro- texture is shaped as ellipse, but is not limited to ellipse, or have
Circle, rhombus texture shape of oleophobic performance etc..
It is preferred that, the major axis of oval micro- texture and the span of minor axis length ratio are 1~50；Micropore short axle is long
It is 10~1000 μm to spend scope；Microcellular structure depth span is 1~50 μm, and depth keeps constant.
It is more highly preferred to, the 10~30% of the micropore gross area Zhan Wei texture area area in annular micro- texture area.
Beneficial effects of the present invention are mainly manifested in：Circumferentially opened up on the axle surface at lip packing air side lip
Directionality oleophobic texture, enables that the sealing medium leaked at lip is rapidly separated and the suspension such as dust is difficult to glue near lip
Attached, accumulation, realizes the self-cleaning function of rotating shaft surface, effectively extends the service life of lip envelope.
Brief description of the drawings
Fig. 1 is the schematic diagram for the rotating shaft lip-shaped sealing structure that micro- texture is opened up with axle surface, wherein, 1 is micro- for annular
Texture area, 2 be sealing lip；3 be lip-type packing.
Fig. 2 is the micro- texture circumference of oblong surface and axial distribution schematic diagram..
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Referring to Figures 1 and 2, a kind of rotating shaft lip-shaped sealing structure that micro- texture is opened up with axle surface, close to lip
Axle surface at seal gas lateral lip portion circumferentially opens up directional micro- texture, and the micro- Texture circumferential and axial of directionality are equal
Even distribution, and the adjacent micro- texture of two annulus distributes alternately.
Further, annular micro- axial length of texture area 1 be 3~5mm, described micro- texture be opened in sealed lip 0.5~
1mm air side.Texture is not opened up at sealing lip 2.
Further, the directionality micro- texture is shaped as ellipse, but is not limited to ellipse, or have
Circle, rhombus texture shape of oleophobic performance etc..
It is preferred that, the major axis of oval micro- texture and the span of minor axis length ratio are 1~50；Micropore short axle is long
It is 10~1000 μm to spend scope；Microcellular structure depth span is 1~50 μm, and depth keeps constant.
It is more highly preferred to, the 10~30% of the micropore gross area Zhan Wei texture area area in annular micro- texture area 1.
Because Laser Processing is to be based on photo-thermal effect principle, therefore the surface curvature of rotary shaft has for capillary processing precision
Material impact, curvature is excessive to be difficult to processing or processing cost is too high, therefore the rotary shaft diameter of axle scope of application is big in the present invention
In 50mm.
In the present embodiment, oil sealing can form layer fluid dynamic pressure oil in use, between lip and rotating shaft surface
Film, to play lubrication, slows down oil sealing abrasion.Due to circumferentially being opened up on the axle surface at lip packing air side lip
Directional micro- texture, and the texture has excellent oleophobic property, so leaking to air side fluid will not be adhered to by timely exclusion
On axle surface, thus avoid contamination build-up in lip envelope air side near, greatly reduce pollutant intrusion sealing lip can
Can, realize rotating shaft surface self-cleaning function.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also forgives art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (6)
1. a kind of rotating shaft lip-shaped sealing structure that micro- texture is opened up with axle surface, it is characterised in that：Close to lip packing
Axle surface at air side lip circumferentially opens up directional micro- texture, and the micro- Texture circumferential and axial of directionality uniformly divide
Cloth, and the adjacent micro- texture of two annulus distributes alternately.
2. the rotating shaft lip-shaped sealing structure of micro- texture is opened up with axle surface as claimed in claim 1, it is characterised in that：Ring
Xing Wei texture area axial length is 3~5mm, and described micro- texture is opened in 0.5~1mm of sealed lip air side.
3. opening up the rotating shaft lip-shaped sealing structure of micro- texture with axle surface as claimed in claim 1 or 2, its feature exists
In：The micro- texture of directionality is shaped as ellipse.
4. the rotating shaft lip-shaped sealing structure of micro- texture is opened up with axle surface as claimed in claim 3, it is characterised in that：Institute
The span of the major axis and minor axis length ratio of stating oval micro- texture is 1~50；Micropore minor axis length scope is 10~1000 μ
m；Microcellular structure depth span is 1~50 μm, and depth keeps constant.
5. the rotating shaft lip-shaped sealing structure of micro- texture is opened up with axle surface as claimed in claim 4, it is characterised in that：Ring
The 10~30% of the micropore gross area Zhan Wei texture area area in Xing Wei texture area.
6. opening up the rotating shaft lip-shaped sealing structure of micro- texture with axle surface as claimed in claim 1 or 2, its feature exists
In：The circle or rhombus that are shaped as with oleophobic performance of the micro- texture of directionality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467420.4A CN107120434A (en) | 2017-06-20 | 2017-06-20 | The rotating shaft lip-shaped sealing structure of micro- texture is opened up with axle surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467420.4A CN107120434A (en) | 2017-06-20 | 2017-06-20 | The rotating shaft lip-shaped sealing structure of micro- texture is opened up with axle surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107120434A true CN107120434A (en) | 2017-09-01 |
Family
ID=59720027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710467420.4A Pending CN107120434A (en) | 2017-06-20 | 2017-06-20 | The rotating shaft lip-shaped sealing structure of micro- texture is opened up with axle surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107120434A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107775285A (en) * | 2017-09-08 | 2018-03-09 | 西安理工大学 | A kind of surface-texturing method for improving core moulding machine guide rail wearability |
| CN109237031A (en) * | 2018-11-01 | 2019-01-18 | 清华大学 | A kind of axis surface has the lip seal configuration of texture |
| CN112747100A (en) * | 2019-10-31 | 2021-05-04 | 江苏太平洋精锻科技股份有限公司 | Straight shaft |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4573690A (en) * | 1984-12-13 | 1986-03-04 | General Motors Corporation | Sealing surface and method |
| US5044642A (en) * | 1988-03-30 | 1991-09-03 | Firma Carl Freudenberg | Annular seal |
| EP1962002A2 (en) * | 2002-07-02 | 2008-08-27 | JTEKT Corporation | Sealing device and sliding member |
| CN102906472A (en) * | 2010-03-12 | 2013-01-30 | Skf公司 | Low-friction seal |
| CN206802299U (en) * | 2017-06-20 | 2017-12-26 | 浙江工业大学 | The rotating shaft lip-shaped sealing structure of micro- texture is opened up with axle surface |
-
2017
- 2017-06-20 CN CN201710467420.4A patent/CN107120434A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4573690A (en) * | 1984-12-13 | 1986-03-04 | General Motors Corporation | Sealing surface and method |
| US5044642A (en) * | 1988-03-30 | 1991-09-03 | Firma Carl Freudenberg | Annular seal |
| EP1962002A2 (en) * | 2002-07-02 | 2008-08-27 | JTEKT Corporation | Sealing device and sliding member |
| CN102906472A (en) * | 2010-03-12 | 2013-01-30 | Skf公司 | Low-friction seal |
| CN206802299U (en) * | 2017-06-20 | 2017-12-26 | 浙江工业大学 | The rotating shaft lip-shaped sealing structure of micro- texture is opened up with axle surface |
Non-Patent Citations (1)
| Title |
|---|
| 江华生等: "唇形密封轴表面方向性微孔的润滑特性", 《化工学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107775285A (en) * | 2017-09-08 | 2018-03-09 | 西安理工大学 | A kind of surface-texturing method for improving core moulding machine guide rail wearability |
| CN109237031A (en) * | 2018-11-01 | 2019-01-18 | 清华大学 | A kind of axis surface has the lip seal configuration of texture |
| CN112747100A (en) * | 2019-10-31 | 2021-05-04 | 江苏太平洋精锻科技股份有限公司 | Straight shaft |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170901 |
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| RJ01 | Rejection of invention patent application after publication |