CN201103690Y - Y type hydraulic oil seal - Google Patents
Y type hydraulic oil seal Download PDFInfo
- Publication number
- CN201103690Y CN201103690Y CNU2007200285637U CN200720028563U CN201103690Y CN 201103690 Y CN201103690 Y CN 201103690Y CN U2007200285637 U CNU2007200285637 U CN U2007200285637U CN 200720028563 U CN200720028563 U CN 200720028563U CN 201103690 Y CN201103690 Y CN 201103690Y
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- China
- Prior art keywords
- oil seal
- seal body
- lip
- annular oil
- utility
- 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 provides a Y-shaped hydraulic oil seal, which comprises an annular oil seal body, wherein, a main lip of the oil seal body consists of an inner lip and an outer lip. The utility model is characterized in that: the Y-shaped hydraulic oil seal comprises the annular oil seal body, wherein, the main lip of the oil seal body consists of the inner lip and the outer lip; the annular oil seal body is integral structure made of polyurethane; the section of the annular oil seal body is in Y-shape; a sealing rib is arranged beneath the inner side of the annular oil seal body; the inner lip of the main lip of the annular oil seal body is lower than the outer lip. The oil seal has the advantages of good performances of oil resistance and wear resistance, capability of bearing high pressure, prolonged service life, and a further improvement on the sealing performance.
Description
Technical field
The utility model belongs to Sealing, is a kind of Y type hydraulic seal specifically.
Background technique
At present the domestic production hydraulic seal be because of will bearing the high pressure of 30Mpa, thus be designed to be with cloth inserted Nitrile Rubber product entirely, the one, bear high pressure with folder cloth, the 2nd, come oil resistant with butyronitrile, but because of Nitrile Rubber not wear-resisting, so life of product is not long always.How to design a kind of hydraulic seal that improves structure, select suitable material, improve wear-resisting property, also want to bear high pressure, this has become the technical task that presses for solution at present.
Summary of the invention
The purpose of this utility model is the deficiency that exists at prior art, and a kind of Y type hydraulic seal is provided, and existing good oil resistant, wear-resisting property can also bear high pressure, increase the service life.Further purpose is to improve sealability.
The purpose of this utility model is achieved by the following technical solution: a kind of Y type hydraulic seal, comprise the annular oil seal body, main lip on the oil seal body comprises epipharynx, outer lip, it is characterized in that: described annular oil seal body is the integrative-structure that polyurethane is made, and the annular oil seal body section is a Y shape.
A sealed muscle has been established in described annular oil seal body inner side surface below.
The inner lip of described annular oil seal body master lip is lower than outer lip.
The utility model compared with prior art has the following advantages and good effect:
1, the utility model Y type hydraulic seal is the integrative-structure that polyurethane is made.Existing good oil resistant, wear-resisting property can also bear high pressure.Utilize the performance of polyurethane, be fit to the abominable Environmental Conditions of operating mode, and long service life.
2, a sealed muscle has been established in the utility model Y type hydraulic seal body inner side surface below.Both allowed the vertical component of oil sealing not touch as far as possible, and allowed them can remain vertically again with being coupling of being sealed, though oil sealing when axle move, produces rub can not change yet oil sealing and spool relative position.
3, the epipharynx of the utility model oil seal body master lip is lower than outer lip.When bearing high pressure, the pressure that epipharynx bears makes epipharynx seize power greater than outer main lip just virtually greater than outer lip pressure like this, guarantees that dynamic axle is consistent with static hole sealability.
Description of drawings
Fig. 1 is the plan view of the utility model Y type hydraulic seal;
Fig. 2 is the plan view of the utility model Y type hydraulic seal;
Fig. 3 is the sectional stereogram of one section Y type of the utility model hydraulic seal.
Embodiment
In conjunction with the accompanying drawings the utility model is described in further detail below by embodiment:
Referring to Fig. 1-Fig. 3, a kind of embodiment of Y type hydraulic seal comprises annular oil seal body 1, and annular oil seal body 1 is the integrative-structure that adopts polyurethane to make, and annular oil seal body 1 cross section is a Y shape.Both oil resistant, wear-resisting can also bear high pressure.
Main lip on the annular oil seal body 1 comprises inner lip 3, outer lip 2, inner lip 2 is lower than outer lip 3, and when bearing high pressure, the pressure that epipharynx bears is just virtually greater than outer lip pressure like this, main lip seize power guarantees that greater than outer main lip dynamic axle is consistent with static hole sealability in making.Below annular oil seal body 1 inner side surface, established a sealed muscle 4, both allowed the vertical component of product not touch as far as possible, allowed them can remain vertically again with being coupling of being sealed, though product when axle move, produces rub can not change yet product and spool relative position.The internal diameter basically identical of annular oil seal body 1 external diameter and closed hole, its matching gap is less than 0.4mm.Guarantee oil sealing like this and will seal die cavity to have a benchmark at least.
Certainly, above-mentioned explanation is not to be to restriction of the present utility model, and the utility model also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present utility model, the variation of making, remodeling, interpolation or replacement all should belong to protection domain of the present utility model.
Claims (3)
1, a kind of Y type hydraulic seal comprises the annular oil seal body, and the main lip on the oil seal body comprises epipharynx, outer lip, it is characterized in that: described annular oil seal body is the integrative-structure that polyurethane is made, and the annular oil seal body section is a Y shape.
2, according to the described Y type of claim 1 hydraulic seal, it is characterized in that: a sealed muscle has been established in described annular oil seal body inner side surface below.
3, according to claim 1 or 2 described Y type hydraulic seals, it is characterized in that: the inner lip of described annular oil seal body master lip is lower than outer lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200285637U CN201103690Y (en) | 2007-09-30 | 2007-09-30 | Y type hydraulic oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200285637U CN201103690Y (en) | 2007-09-30 | 2007-09-30 | Y type hydraulic oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201103690Y true CN201103690Y (en) | 2008-08-20 |
Family
ID=39950716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200285637U Expired - Fee Related CN201103690Y (en) | 2007-09-30 | 2007-09-30 | Y type hydraulic oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201103690Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322525A (en) * | 2011-09-08 | 2012-01-18 | 韶关市伟光液压油缸有限公司 | YO-shaped sealing ring |
| EP2428717A1 (en) * | 2010-09-09 | 2012-03-14 | Faster S.p.A. | Gasket for quick couplings |
| CN102563080A (en) * | 2012-01-05 | 2012-07-11 | 上海大学 | Y-shaped rubber dynamic sealing ring with long and short lips for unilateral sealing and sectional vulcanization process for sealing ring |
| CN106763788A (en) * | 2016-12-16 | 2017-05-31 | 安徽亚兰密封件有限公司 | A kind of automobile durable type sealing ring |
-
2007
- 2007-09-30 CN CNU2007200285637U patent/CN201103690Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2428717A1 (en) * | 2010-09-09 | 2012-03-14 | Faster S.p.A. | Gasket for quick couplings |
| CN102322525A (en) * | 2011-09-08 | 2012-01-18 | 韶关市伟光液压油缸有限公司 | YO-shaped sealing ring |
| CN102563080A (en) * | 2012-01-05 | 2012-07-11 | 上海大学 | Y-shaped rubber dynamic sealing ring with long and short lips for unilateral sealing and sectional vulcanization process for sealing ring |
| CN106763788A (en) * | 2016-12-16 | 2017-05-31 | 安徽亚兰密封件有限公司 | A kind of automobile durable type sealing ring |
| CN106763788B (en) * | 2016-12-16 | 2018-08-07 | 安徽亚兰密封件有限公司 | A kind of automobile durable type sealing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: QINGDAO HILYWILL ADVANCED MATERIALS TECHNOLOGY CO. Free format text: FORMER NAME: QINGDAO HILYWILL SEALING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 266113 Hetao Industrial Zone, Chengyang District, Shandong, Qingdao Patentee after: Qingdao Hilywill Advanced Materials Technology Co., Ltd. Address before: 266113 Hetao Industrial Zone, Chengyang District, Shandong, Qingdao Patentee before: Qingdao Hilywill Sealing Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 Termination date: 20130930 |