CN201779266U - High-speed rotary oil seal with dustproof lip flanges - Google Patents
High-speed rotary oil seal with dustproof lip flanges Download PDFInfo
- Publication number
- CN201779266U CN201779266U CN2010202532378U CN201020253237U CN201779266U CN 201779266 U CN201779266 U CN 201779266U CN 2010202532378 U CN2010202532378 U CN 2010202532378U CN 201020253237 U CN201020253237 U CN 201020253237U CN 201779266 U CN201779266 U CN 201779266U
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- CN
- China
- Prior art keywords
- dustproof
- lips
- lip
- dust excluder
- excluder lips
- 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 high-speed rotary oil seal with dustproof lip flanges, which comprises a framework, main sealing lips, rubber dustproof lips and springs hooped on the main sealing lips. The high-speed rotary oil seal with dustproof lip flanges is characterized in that flanges are uniformly distributed on the rubber dustproof lips. The rotary oil seal with dustproof lip flanges is simple in structure and easy to be manufactured, effectively avoids leakage of the main sealing lips caused by lip pressure on the premise of guaranteeing dustproof capacity of the rubber dustproof lips (the dustproof lips are in transition matching with a working shaft), and is extremely fine in dustproof effect and long in service life.
Description
Technical field
The utility model relates to the running shaft oil sealing, particularly, is a kind of high speed rotating oil sealing of dust excluder lips flange design.
Background technique
In the application of present high speed rotating oil sealing, in order to adapt to certain dust environment, the design of dust excluder lips mainly contains following dual mode: the one, adopt the rubber dust excluder lips, and lip and the certain magnitude of interference of axle design, this mode causes generation negative pressure between lip easily and causes main lip to leak, and dust enters oil sealing inside; The 2nd, adopt the nonwovens dust excluder lips, lip has solved the rubber dust excluder lips and has been easy to generate the problem of negative pressure with the certain magnitude of interference of axle design, this mode, but owing to have the gap in the nonwovens, also exists dust to enter the problem of oil sealing inside easily.
The model utility content
The purpose of this utility model is to provide a kind of high speed rotating oil sealing of dust excluder lips flange design, it can avoid producing negative pressure between lip and the problem that causes main lip leakage under the prerequisite of the dirt exclusion capabilities (be interference fit between dust excluder lips and the working shaft) that guarantees the rubber dust excluder lips.
Concrete technological scheme of the present utility model is:
A kind of high speed rotating oil sealing of dust excluder lips flange design comprises skeleton, primary seal lip, rubber dust excluder lips and the spring of lock ring on primary seal lip, is characterised in that design has uniform flange on the rubber dust excluder lips.
When new product,, can not produce the lip negative pressure owing to flange uniform on the rubber dust excluder lips contacts the cause that the gap takes place with working shaft.
After using a period of time, the rubber dust excluder lips wears away, and this moment is bigger than normal as sporocarp, and then the eccentric tracing ability owing to the rubber dust excluder lips produces the gap, can not produce the lip negative pressure; Then may produce lip negative pressure as sporocarp residual again certain magnitude of interference less than normal this moment, but because the rubber dust excluder lips is inwardly pressed close to working shaft, and the flange on the rubber dust excluder lips contacts and produce the gap with working shaft, thereby the lip negative pressure is removed.
The high speed rotating oil seal structure of dust excluder lips flange design of the present utility model is simple, easy to manufacture, under the prerequisite of the dirt exclusion capabilities (being interference fit between dust excluder lips and the working shaft) that guarantees the rubber dust excluder lips, it no matter is new product or after using a period of time, can avoid producing the problem that negative pressure causes primary seal lip to be leaked because of lip, therefore dustproof works very well, and long service life is particularly suitable as high speed running shaft oil sealings such as engine crankshaft oil sealing.
Description of drawings
With embodiment the utility model is described in further detail with reference to the accompanying drawings below.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the working principle schematic representation of the utility model when new product;
Fig. 3 is that the working principle schematic representation of abrasion back when entity is bigger than normal takes place the utility model;
Fig. 4 is that the working principle schematic representation of abrasion back when entity is less than normal takes place the utility model.
Among the figure: 1, skeleton; 2, primary seal lip; 3, rubber dust excluder lips; 4, spring; 5, flange.
Embodiment
As shown in Figure 1, provided an embodiment described in the utility model.A kind of high speed rotating oil sealing of dust excluder lips flange design comprises skeleton 1, primary seal lip 2, rubber dust excluder lips 3 and the lock ring spring 4 on primary seal lip, and design has uniform flange 5 on the rubber dust excluder lips 3.
When new product,, can not produce lip negative pressure (shown in figure two) owing to flange uniform on the rubber dust excluder lips 35 contacts the cause that the gap takes place with working shaft.
After using a period of time, rubber dust excluder lips 3 wears away, and this moment is bigger than normal as sporocarp, and then the eccentric tracing ability owing to rubber dust excluder lips 3 produces the gap, can not produce lip negative pressure (shown in figure three); This moment is as sporocarp residual again certain magnitude of interference less than normal, then may produce the lip negative pressure, but because rubber dust excluder lips 3 is inwardly pressed close to working shaft, the flange 5 on the rubber dust excluder lips 3 contacts and produces the gap with working shaft, thereby the lip negative pressure is removed (shown in figure four).
The high speed rotating oil seal structure of the dust excluder lips flange design of present embodiment is simple, easy to manufacture, under the prerequisite of the dirt exclusion capabilities (being interference fit between dust excluder lips and the working shaft) that guarantees the rubber dust excluder lips, avoided effectively producing the problem that negative pressure causes primary seal lip to be leaked because of lip, dustproof works very well, long service life.
Claims (1)
1. the high speed rotating oil sealing of a dust excluder lips flange design comprises skeleton, primary seal lip, rubber dust excluder lips and the spring of lock ring on primary seal lip, it is characterized in that: design has uniform flange on the described rubber dust excluder lips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202532378U CN201779266U (en) | 2010-07-09 | 2010-07-09 | High-speed rotary oil seal with dustproof lip flanges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202532378U CN201779266U (en) | 2010-07-09 | 2010-07-09 | High-speed rotary oil seal with dustproof lip flanges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779266U true CN201779266U (en) | 2011-03-30 |
Family
ID=43792477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202532378U Expired - Fee Related CN201779266U (en) | 2010-07-09 | 2010-07-09 | High-speed rotary oil seal with dustproof lip flanges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779266U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980351A (en) * | 2018-07-10 | 2018-12-11 | 淮北智淮科技有限公司 | A kind of new-energy automobile crankshaft oil seal |
| CN109630683A (en) * | 2018-12-25 | 2019-04-16 | 陕西润泽橡胶制品有限公司 | A kind of oil sealing and universal joint |
-
2010
- 2010-07-09 CN CN2010202532378U patent/CN201779266U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980351A (en) * | 2018-07-10 | 2018-12-11 | 淮北智淮科技有限公司 | A kind of new-energy automobile crankshaft oil seal |
| CN108980351B (en) * | 2018-07-10 | 2020-08-21 | 淮北智淮科技有限公司 | New energy automobile crankshaft oil blanket |
| CN109630683A (en) * | 2018-12-25 | 2019-04-16 | 陕西润泽橡胶制品有限公司 | A kind of oil sealing and universal joint |
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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: 20110330 Termination date: 20130709 |