CN201090741Y - Self-tightening type oil seal - Google Patents
Self-tightening type oil seal Download PDFInfo
- Publication number
- CN201090741Y CN201090741Y CNU2007200814289U CN200720081428U CN201090741Y CN 201090741 Y CN201090741 Y CN 201090741Y CN U2007200814289 U CNU2007200814289 U CN U2007200814289U CN 200720081428 U CN200720081428 U CN 200720081428U CN 201090741 Y CN201090741 Y CN 201090741Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- labial plate
- elastic component
- inner frame
- sheet
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a self-tightening oil seal which comprises an outer frame (1), an inner frame (2), a dustproof labial plate (4), a sealing labial plate (3) and an elastic component (5) arranged in the cavity formed by the inner frame (2) and the sealing labial plate (4); the elastic component (5) acts on the sealing labial plate and makes the sealing labial plate be pressed and jointed between elastic component (5) and the shaft mounted by the oil seal. In the utility model, the elastic component is limited to the lateral side of the sealing labial plate by the cavity formed by the sealing labial plate and the inner frame support body; the PTFE sealing labial plate is jointed with the shaft mounted by the oil seal due to the elasticity or contractility of the elastic component; when the shaft vibrates, the sealing labial plate moves along with the shaft rapidly under the effect of the elasticity or contractility of the elastic component to realize sealing; the structure can fulfill the rotary seal with large eccentric magnitude or large shaft diameter with PTFE as the sealing lip and realize long-term and stable sealing effect.
Description
Technical field
The utility model relates to automotive oil encapsulation technique field, specifically, is a kind of self tightening oil sealing.
Background technique
Oil sealing is widely used on motor vehicle and the engineering machinery, and it is of a great variety, as be used in the wheel shaft place of wheel wheel limit oil sealing, main subtract oil sealing etc., that oil sealing can play is dustproof, the effect of waterproof, anti-leakage of oil.Especially under the operating mode rugged environment, need the better oil sealing of sealability.
Teflon is as the seal lip Sealing, since good sealing effect, advantages such as long service life, and industries such as automobile, electromechanics, chemical industry, aviation, boats and ships are widely used now.But existing teflon seal is owing to utilize the character of polytetrafluoroethylmaterial material own to reply slower, under the situations such as the big or diameter of axle is bigger at jerk value, lip has little time to follow axle and shrinks, and easily causes leakage, thereby has limited the use of teflon in these occasions.
The model utility content
Technical problem to be solved in the utility model provides under a kind of or situation that the diameter of axle is bigger big at the axle jerk value can stablize the self tightening oil sealing of realizing sealing effect.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: the self tightening oil sealing, comprise outer skeleton, inner frame, dust excluder lips sheet and sealing lip sheet, be provided with resilient member in the cavity that described inner frame and sealing lip sheet form, resilient member acts on the sealing lip sheet and the sealing lip sheet is compressed and is attached between the axle that resilient member and this oil sealing install.
In this technological scheme, the cavity that forms by sealing lip sheet and inner frame support is limited in the sealing lip sheet outside with resilient member, utilize the elastic force of resilient member or contractile force that teflon seal lip sheet is attached on the axle that this oil sealing installs, when axle is beated, the sealing lip sheet is followed the axle motion rapidly under the effect of the elastic force of resilient member or contractile force, realize sealing.This structure can satisfy offset rotary seal big or large-diameter and use teflon as lip, realizes the needs of sealing effect steady in a long-term.
Concrete, described resilient member is spring or spring sheet; The spring shape can be circle, square or sheet.
Described outer skeleton, inner frame are according to the different deformables in oil sealing assembling position.
In sum, the beneficial effects of the utility model are: the cavity that forms by sealing lip sheet and inner frame support is limited in the sealing lip sheet outside with resilient member, utilize the elastic force of resilient member or contractile force that teflon seal lip sheet is attached on the axle that this oil sealing installs, when axle is beated, the sealing lip sheet is followed the axle motion rapidly under the effect of the elastic force of resilient member or contractile force, realize sealing, can satisfy offset rotary seal big or large-diameter and use teflon, realize the needs of sealing effect steady in a long-term as lip.
Below in conjunction with drawings and the embodiments the utility model is described in further detail.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, self tightening oil sealing of the present utility model comprises outer skeleton 1, inner frame 2, dust excluder lips sheet 4 and sealing lip sheet 3, be provided with resilient member 5 in the cavity that inner frame 2 and sealing lip sheet 4 forms, resilient member 5 acts on sealing lip sheet 3 and sealing lip sheet 3 is compressed and is attached between the axle that resilient member 5 and this oil sealing install.
The resilient member 5 of present embodiment is spring or spring sheet, and spring is shaped as circle, square or sheet.Inside and outside skeleton can be made shape and be changed according to the variation of practical set position as support; Teflon seal lip sheet can be bonded on the skeleton body.The assembled shaft 6 of this oil sealing can be other shape according to actual demand, and outer skeleton, inner frame are according to the different deformables in oil sealing assembling position.
Claims (4)
1. self tightening oil sealing, comprise outer skeleton (1), inner frame (2), dust excluder lips sheet (4) and sealing lip sheet (3), it is characterized in that, be provided with resilient member (5) in the cavity that described inner frame (2) and sealing lip sheet (4) form, resilient member (5) acts on sealing lip sheet (3) and sealing lip sheet (3) is compressed and is attached between the axle that resilient member (5) and this oil sealing install.
2. self tightening oil sealing according to claim 1 is characterized in that, described resilient member (5) is spring or spring sheet.
3. self tightening oil sealing according to claim 2 is characterized in that, described spring is circle, square or sheet.
4. according to any described self tightening oil sealing of claim 1 to 3, it is characterized in that described outer skeleton (1), inner frame (2) are according to the different deformables in oil sealing assembling position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200814289U CN201090741Y (en) | 2007-10-11 | 2007-10-11 | Self-tightening type oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200814289U CN201090741Y (en) | 2007-10-11 | 2007-10-11 | Self-tightening type oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090741Y true CN201090741Y (en) | 2008-07-23 |
Family
ID=39862501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200814289U Expired - Fee Related CN201090741Y (en) | 2007-10-11 | 2007-10-11 | Self-tightening type oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090741Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418788A (en) * | 2010-09-28 | 2012-04-18 | 北京橡胶工业研究设计院 | Elastic structure polytetrafluoroethylene oil seal |
| CN101586665B (en) * | 2009-07-06 | 2012-06-27 | 宁波信幸隆密封制品有限公司 | Oil seal |
| CN103277520A (en) * | 2013-05-23 | 2013-09-04 | 温州恒阳汽车科技有限公司 | Wide contacting lip surface rubber sealing ring for rotating shaft |
| CN110966407A (en) * | 2019-12-23 | 2020-04-07 | 西北橡胶塑料研究设计院有限公司 | Self-tightening combined oil seal for liquid oxygen and liquid methane delivery pump |
| CN112963540A (en) * | 2021-02-07 | 2021-06-15 | 青岛众力诚达智能科技有限公司 | Rotary sealing structure with supporting lip |
-
2007
- 2007-10-11 CN CNU2007200814289U patent/CN201090741Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586665B (en) * | 2009-07-06 | 2012-06-27 | 宁波信幸隆密封制品有限公司 | Oil seal |
| CN102418788A (en) * | 2010-09-28 | 2012-04-18 | 北京橡胶工业研究设计院 | Elastic structure polytetrafluoroethylene oil seal |
| CN103277520A (en) * | 2013-05-23 | 2013-09-04 | 温州恒阳汽车科技有限公司 | Wide contacting lip surface rubber sealing ring for rotating shaft |
| CN110966407A (en) * | 2019-12-23 | 2020-04-07 | 西北橡胶塑料研究设计院有限公司 | Self-tightening combined oil seal for liquid oxygen and liquid methane delivery pump |
| CN112963540A (en) * | 2021-02-07 | 2021-06-15 | 青岛众力诚达智能科技有限公司 | Rotary sealing structure with supporting lip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20091111 |