CN201836379U - Drum-shaped sealing ring - Google Patents
Drum-shaped sealing ring Download PDFInfo
- Publication number
- CN201836379U CN201836379U CN2010206011539U CN201020601153U CN201836379U CN 201836379 U CN201836379 U CN 201836379U CN 2010206011539 U CN2010206011539 U CN 2010206011539U CN 201020601153 U CN201020601153 U CN 201020601153U CN 201836379 U CN201836379 U CN 201836379U
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- CN
- China
- Prior art keywords
- rubber
- seal ring
- outer side
- cydariform
- shaped
- 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 relates to a drum-shaped sealing ring, which comprises two L-shaped guide rings, a jacket and a rubber liner. The section of the rubber liner is drum-shaped, the upper end face and the lower end face of the rubber liner are respectively provided with a boss, the inner side face and the outer side face of the rubber liner are arc-shaped surfaces, the inner side face of the jacket is an arc-shaped surface matched with the radian of the outer side face of the rubber liner, the two L-shaped guide rings are sleeved on gaps at the upper end and the lower end of the rubber liner in a matching way, and the guide rings, the jacket and the liner are respectively made of polyformaldehyde, polyurethane and rubber. Due to the elasticity, the rubber can compensate the polyurethane so that the jacket still has good sealing performance even after being worn for a certain period, the polyformaldehyde can enhance the strength of the polyurethane and the rubber, and the guide rings have certain guiding effect. Therefore, the drum-shaped sealing ring can achieve good sealing performance when being used, and the service life of the drum-shaped sealing ring is prolonged.
Description
Technical field
The utility model relates to a kind of seal ring, relates in particular to a kind of cydariform seal ring.
Background technique
At present in the hydraulic transmission process, particularly in the piston seal of reciprocating movement oil cylinder, the cydariform circle is as a kind of sealing configuration, it all can play good seal action under working pressures such as high pressure or low pressure, and present on the market cydariform circle, there is certain scarce limit in its compound mode, and present production material can't better have been given play to the performance of product, reduce the working life of product, incured loss through delay production.
Summary of the invention
The purpose of this utility model is to overcome the defective of prior art, provide that the combination of a kind of product component is more reasonable, Manufacturing material more high-quality, can better bring into play product performance and improve the cydariform seal ring in the working life of product.
For achieving the above object, the utility model adopts a kind of cydariform seal ring, comprise two L type guide rings, overcoat and elastometric linings, the sectional shape of elastometric lining is a cydariform, the upper and lower end face of elastometric lining is provided with a boss, the interior outer side surface of elastometric lining is an arc surface, and the inner side surface of described overcoat forms and the suitable arc surface of elastometric lining outer side surface radian, and described two L type guide rings are adaptive to be set on the breach of upper and lower end of elastometric lining.
The utility model further is set to the cydariform seal ring again, and the outer side surface of described overcoat is an arc surface, and outer side surface is provided with 1 or many lubricating channels.
The utility model further is set to the cydariform seal ring again, and outer side surface is provided with 2 lubricating channels.
The utility model further is set to the cydariform seal ring again, and the making material that described overcoat adopted is a polyurethane material.
The utility model further is set to the cydariform seal ring again, and the making material that described L type guide ring is adopted is a polyformaldehyde material.
The beneficial effects of the utility model are: the cydariform seal ring comprises two L type guide rings of making of polyformaldehyde material (also claiming back-up ring) with leading role, adopt the overcoat of polyurethane material making and the liner that rubber material is made, polyurethane is than traditional rubber wear-resisting, rubber has rebound elasticity, can compensate polyurethane, polyurethane in use can wear and tear gradually, compensation by rubber makes polyurethane can also keep excellent sealing performance after wearing and tearing, they two be complementary, polyoxymethylene can give they two gain in strength, also has certain leading role, utilize such material and combinations thereof mode, make the cydariform seal ring in the process of using, can better bring into play the sealability of itself, and prolonged the working life of cydariform seal ring.
Description of drawings
Fig. 1 is the utility model embodiment's a sectional view.
Embodiment
As shown in Figure 1, specific embodiment of the utility model is the cydariform seal ring, the global sections of cydariform seal ring is shaped as cydariform, comprise two L type guide ring (also claiming back-up ring) (1a that make of polyformaldehyde material with leading role, 1b), adopt the overcoat 2 of polyurethane material making and the liner 3 that rubber material is made, the sectional shape of elastometric lining 3 is a cydariform, the upper and lower end face of elastometric lining 3 is provided with a boss 31, the interior outer side surface of elastometric lining 3 is an arc surface, the inner side surface of described overcoat forms and the suitable arc surface of elastometric lining outer side surface radian, described two L type guide rings are adaptive to be set on the breach of upper and lower end of elastometric lining, the outer side surface of described overcoat is an arc surface, outer side surface is provided with 2 lubricating channels, polyurethane is than traditional rubber wear-resisting, rubber has rebound elasticity, can compensate polyurethane, polyurethane in use can wear and tear gradually, compensation by rubber makes polyurethane can also keep excellent sealing performance after wearing and tearing, they two be complementary, polyoxymethylene can give they two gain in strength, also has certain leading role, utilize such material and combinations thereof mode, make the cydariform seal ring in the process of using, can better bring into play the sealability of itself, and prolonged the working life of cydariform seal ring.
Claims (5)
1. cydariform seal ring, it is characterized in that: the cydariform seal ring comprises two L type guide rings, overcoat and elastometric linings, the sectional shape of elastometric lining is a cydariform, the upper and lower end face of elastometric lining is provided with a boss, the interior outer side surface of elastometric lining is an arc surface, the inner side surface of described overcoat forms and the suitable arc surface of elastometric lining outer side surface radian, and described two L type guide rings are adaptive to be set on the breach of upper and lower end of elastometric lining.
2. cydariform seal ring according to claim 1 is characterized in that: the outer side surface of described overcoat is an arc surface, and outer side surface is provided with 1 or many lubricating channels.
3. cydariform seal ring according to claim 2 is characterized in that: described outer side surface is provided with 2 lubricating channels.
4. cydariform seal ring according to claim 1 is characterized in that: the making material that described overcoat adopted is a polyurethane material.
5. cydariform seal ring according to claim 1 is characterized in that: the making material that described L type guide ring is adopted is a polyformaldehyde material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206011539U CN201836379U (en) | 2010-11-04 | 2010-11-04 | Drum-shaped sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206011539U CN201836379U (en) | 2010-11-04 | 2010-11-04 | Drum-shaped sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836379U true CN201836379U (en) | 2011-05-18 |
Family
ID=44006483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206011539U Expired - Fee Related CN201836379U (en) | 2010-11-04 | 2010-11-04 | Drum-shaped sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201836379U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954220A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Piston sealing part |
| CN103671927A (en) * | 2013-11-26 | 2014-03-26 | 山西浩业通用设备有限公司 | Composite type drum-shaped seal ring provided with L-shaped check rings |
| CN106763315A (en) * | 2017-02-23 | 2017-05-31 | 徐州徐工随车起重机有限公司 | A kind of crane reducer brake |
-
2010
- 2010-11-04 CN CN2010206011539U patent/CN201836379U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954220A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Piston sealing part |
| CN103671927A (en) * | 2013-11-26 | 2014-03-26 | 山西浩业通用设备有限公司 | Composite type drum-shaped seal ring provided with L-shaped check rings |
| CN106763315A (en) * | 2017-02-23 | 2017-05-31 | 徐州徐工随车起重机有限公司 | A kind of crane reducer brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20151104 |
|
| EXPY | Termination of patent right or utility model |