CN201496555U - PTFE sealing element - Google Patents
PTFE sealing element Download PDFInfo
- Publication number
- CN201496555U CN201496555U CN2009203083369U CN200920308336U CN201496555U CN 201496555 U CN201496555 U CN 201496555U CN 2009203083369 U CN2009203083369 U CN 2009203083369U CN 200920308336 U CN200920308336 U CN 200920308336U CN 201496555 U CN201496555 U CN 201496555U
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- CN
- China
- Prior art keywords
- sealing
- lip
- ptfe
- sealing element
- opening
- 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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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model belongs to a sealing device, particularly to a polytetrafluoroethylene (PTFE) sealing element, and aims to provide an oil seal fully made of a PTFE material. The oil seal comprises a main sealing lip and an auxiliary sealing lip, wherein the cross section of the sealing element is U-shaped, the mouth of the main sealing lip is arc-shaped, an opening is formed on the upper side of the sealing element, an inwards-recessed groove is formed inside the opening on the side close to the main sealing lip, and a bow-shaped spring is arranged inside the groove. The PTFE sealing element has the advantages of simple structure, convenient fabrication, good stability and wear resistance and good sealing effect.
Description
Technical field
The utility model belongs to seal arrangement, especially a kind of PTFE Sealing.
Background technique
PTFE is that teflon is a kind of resistant material, because its heat resistance is better, has excellent insulation stability and low frictional properties simultaneously, therefore extensively as the main lip lip of the sealing of oil sealing.But make because present oil sealing main body is still by rubber, so existing P TFE oil sealing generally is connected complex manufacturing with the PTFE sheet by sulfuration with rubber body when producing.
Summary of the invention
The purpose of this utility model has been to propose a kind of oil sealing of being made by the PTFE material fully, and it is simple in structure, and is easy to make, has stability and wear resistance preferably, good sealing effect.
The utility model is to adopt following technological scheme to realize: a kind of PTFE Sealing, comprise main lip of sealing and sealing pair lip, wherein, described Sealing cross section is u shape, it seals curved of the lip of main lip, the upside of Sealing is provided with opening, and the side near the main lip of sealing in the opening is provided with inside groove, and arcuate bombing leaf is housed in the groove.
In the utility model, the lip that seals main lip is an arc shaped surface, is tangent state with the axle fitting surface, is convenient to sealing.Arcuate bombing leaf provides radial force for Sealing, makes between arc lip and the axle fitting surface to fit tightly, and makes oil sealing have better sealing effect.The groove of opening slot inwall setting is used to install arcuate bombing leaf, prevents that spring sheet from coming off when installing or move.
The beneficial effects of the utility model are: this PTFE Sealing has utilized that the PTFE material thermal resistance is good, the excellent characteristics of insulation good stability and rub resistance, and simple in structure, easily manufactured, good airproof performance, long service life.
Description of drawings
Fig. 1 is the structural representation that partly cuts open of the present utility model.
Embodiment
As shown in the figure, sealing part 1 is all made by the PTFE material, the sealing part comprises main lip 4 of sealing and sealing pair lip 5, wherein seal main lip 4 and be arc shaped surface, this arc shaped surface is tangent state with the axle fitting surface, helps sealing, seals main lip 4 and is used for sealing lubricating oil, sealing pair lip 5 is dust excluder lips, is used to prevent that outside dust from entering in the lubricant oil.The top of Sealing 1 is provided with opening 3, be provided with arcuate bombing leaf 2 in the opening 3, for arcuate bombing leaf 2 is fixed in the opening 3, opening 3 is provided with inside groove towards a side of the main lip 4 of sealing, arcuate bombing leaf 2 is installed in the groove, prevents that it from coming off in Sealing installation or running.Elastic force in the arcuate bombing leaf 2 fits tightly the arc lip of the main lip 4 of sealing and axle fitting surface, guarantees that Sealing 1 can have the better seal effect.
Claims (1)
1. PTFE Sealing, comprise main lip of sealing and sealing pair lip, it is characterized in that: described Sealing cross section is u shape, it seals curved of the lip of main lip, the top of Sealing is provided with opening, side near the main lip of sealing in the opening is provided with inside groove, and arcuate bombing leaf is housed in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203083369U CN201496555U (en) | 2009-08-19 | 2009-08-19 | PTFE sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203083369U CN201496555U (en) | 2009-08-19 | 2009-08-19 | PTFE sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201496555U true CN201496555U (en) | 2010-06-02 |
Family
ID=42439762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203083369U Expired - Fee Related CN201496555U (en) | 2009-08-19 | 2009-08-19 | PTFE sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201496555U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240533A (en) * | 2014-07-03 | 2016-01-13 | Nok株式会社 | Gasket |
| CN105757248A (en) * | 2014-12-18 | 2016-07-13 | 北京橡胶工业研究设计院 | Large composite-structure sealing element for rotating shaft |
| CN113531123A (en) * | 2021-08-09 | 2021-10-22 | 南京利德东方橡塑科技有限公司 | Bearing seal with support finger spring |
-
2009
- 2009-08-19 CN CN2009203083369U patent/CN201496555U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240533A (en) * | 2014-07-03 | 2016-01-13 | Nok株式会社 | Gasket |
| CN105757248A (en) * | 2014-12-18 | 2016-07-13 | 北京橡胶工业研究设计院 | Large composite-structure sealing element for rotating shaft |
| CN113531123A (en) * | 2021-08-09 | 2021-10-22 | 南京利德东方橡塑科技有限公司 | Bearing seal with support finger spring |
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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: 20100602 Termination date: 20120819 |