CN206802299U - 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
- CN206802299U CN206802299U CN201720717520.3U CN201720717520U CN206802299U CN 206802299 U CN206802299 U CN 206802299U CN 201720717520 U CN201720717520 U CN 201720717520U CN 206802299 U CN206802299 U CN 206802299U
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- China
- Prior art keywords
- texture
- micro
- lip
- rotating shaft
- axle surface
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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.)
- Expired - Fee Related
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- 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 utility model provide it is a kind of with self-cleaning function, increase the service life, lift-off seal performance with axle surface provided with micro- texture rotating shaft lip-shaped sealing structure.
Description
Technical field
Rubber-plastic sealing field is the utility model is related to, especially a kind of rotating shaft lip-shaped sealing structure, the axle of its air side
Surface opens 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
Many advantages, such as cheap, 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 leaks.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 cause seal failure, therefore
It is proposed 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, realize 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 utility model proposes a kind of rotary shaft lip
Seal gas side has the micro- texture in axle surface of self-cleaning function, to tackle the difficulty of lip packing air side easily " sheltering evil people and countenance evil practices "
Topic.
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 utility model provide it is a kind of with self-cleaning function, increase the service life, lift-off seal performance with
Axle surface opens up the rotating shaft lip-shaped sealing structure of micro- texture.
Technical scheme is used by the utility model solves its technical problem：
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 is 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 has
The circle of oleophobic performance, rhombus texture shape etc..
Preferably, the span of the major axis of the micro- texture of ellipse and minor axis length ratio is 1~50；Micropore short axle is grown
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 the micro- texture area of annular.
The beneficial effects of the utility model are mainly manifested in：It is circumferential on the axle surface at lip packing air side lip
Open up directionality oleophobic texture, enable at lip leak sealing medium be rapidly separated and the suspension such as dust be not easy it is attached in lip
Nearly adhesion, accumulation, the self-cleaning function of rotating shaft surface is realized, effectively extend the service life of lip envelope.
Brief description of the drawings
Fig. 1 be have axle surface open up micro- texture rotating shaft lip-shaped sealing structure schematic diagram, wherein, 1 for annular it is micro-
Texture area, 2 be sealing lip；3 be lip-type packing.
Fig. 2 is that the micro- texture of oblong surface is circumferential and axial distribution schematic diagram..
Embodiment
The utility model is 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, the micro- axial length of texture area 1 of annular is 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 has
The circle of oleophobic performance, rhombus texture shape etc..
Preferably, the span of the major axis of the micro- texture of ellipse and minor axis length ratio is 1~50；Micropore short axle is grown
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 the micro- texture area 1 of annular.
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 in the utility model
It is greater than 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, slow 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, so as to avoid contamination build-up near lip envelope air side, 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 utility model design, and this practicality is new
The protection domain of type is not construed as being only limitted to the concrete form that embodiment is stated, the scope of protection of the utility model is also wrapped
Contain those skilled in the art according to the utility model design it is conceivable that equivalent technologies mean.
Claims (6)
- A kind of 1. 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 oval
- 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 the micro- texture of ellipse 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 having oleophobic performance of the micro- texture of directionality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720717520.3U CN206802299U (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 |
|---|---|---|---|
| CN201720717520.3U CN206802299U (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 |
|---|---|
| CN206802299U true CN206802299U (en) | 2017-12-26 |
Family
ID=60747751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720717520.3U Expired - Fee Related CN206802299U (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) | CN206802299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120434A (en) * | 2017-06-20 | 2017-09-01 | 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 CN201720717520.3U patent/CN206802299U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120434A (en) * | 2017-06-20 | 2017-09-01 | 浙江工业大学 | The rotating shaft lip-shaped sealing structure of micro- texture is opened up with axle surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20210620 |