CN203656198U - Y-shaped sealing ring - Google Patents
Y-shaped sealing ring Download PDFInfo
- Publication number
- CN203656198U CN203656198U CN201320689438.6U CN201320689438U CN203656198U CN 203656198 U CN203656198 U CN 203656198U CN 201320689438 U CN201320689438 U CN 201320689438U CN 203656198 U CN203656198 U CN 203656198U
- Authority
- CN
- China
- Prior art keywords
- lip
- epipharynx
- piston rod
- seal ring
- inner lip
- 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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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model provides a Y-shaped sealing ring of which the sealing property and the pressure resistance are excellent, and the service life is greatly prolonged. The Y-shaped sealing ring comprises an outer lip and an inner lip and is characterized in that 1-3 auxiliary lips are arranged on one side of the inner lip fitted with a piston rod, a gap is formed between the auxiliary lip and the inner lip or the adjacent secondary lip, an included angle formed between the inner lip and an axis of the piston rod is 22 degrees, an included angle formed between the outer lip and the inner lip is 53 degrees, and roots of the outer lip and the inner lip are in transition connection through a curved surface, the radius of the curved surface is 2.3 mm, and both the outer lip and the inner lip are 3 mm in thickness.
Description
Technical field
The utility model relates to a kind of seal ring, is specifically related to a kind of y-type seal ring.
Background technique
Y-type seal ring is widely used in reciprocating seal arrangement, and its cross section is Y type, comprises epipharynx and outer lip.Existing y-type seal ring adopts monolateral sealing, although substantially exceed O RunddichtringO in its sealability, withstand voltage properties and working life, but do sealing use in precise hydraulic oil cylinder time, its single sealing lip is through piston rod contact repeatedly for a long time, even if slight friction is impaired, cause hydraulic oil to be revealed thereby also will cause sealability to reduce, affect the normal operation of hydraulic jack, and the working pressure≤32Mpa of existing y-type seal ring, cannot be applicable to the precise hydraulic oil cylinder that working pressure is higher.
Model utility content
For the problems referred to above, the utility model provides a kind of y-type seal ring, and its sealability and withstand voltage properties are good, has greatly extended the working life of seal ring.
A kind of y-type seal ring, comprise outer lip and epipharynx, it is characterized in that: a side of described epipharynx and piston rod laminating is provided with 1 ~ 3 secondary lip, the gap being provided with between described secondary lip and described epipharynx or between adjacent described secondary lip, the angle of described epipharynx and piston rod axis is 22 °, described outer lip and the angle of described epipharynx are that 53 ° and its root are connected by surface blending, and the radius of described curved surface is 2.3mm, and the thickness of described outer lip and described epipharynx is 3mm.
It is further characterized in that:
The external diameter of described seal ring is that 141.8mm, internal diameter are 118.2mm.
Adopt after structure of the present utility model, one side of epipharynx and piston rod laminating is provided with 1 ~ 3 secondary lip, the gap being provided with between described secondary lip and described epipharynx or between adjacent described secondary lip, on piston rod with residual liquid by the space being full of between epipharynx and secondary lip and adjacent pair lip, form a special seal area, even if epipharynx is impaired because repeatedly rubbing, seal action is still played in above-mentioned special seal area, thereby greatly improve the sealability of y-type seal ring, and the acting in conjunction of secondary lip and epipharynx has improved the withstand voltage properties of y-type seal ring, simultaneously, the angle of epipharynx and piston rod axis is 22 °, the angle of outer lip and epipharynx is 53 °, and its root connects by surface blending, the radius of curved surface is 2.3mm, the thickness of outer lip and epipharynx is 3mm, such structure setting not only can further improve sealability and the withstand voltage properties of y-type seal ring, and take into account the frictional force between y-type seal ring and piston rod, thereby greatly improve the working life of y-type seal ring.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation after amplify in cross section of the present utility model.
Embodiment
See Fig. 1 and Fig. 2, a kind of y-type seal ring, comprise outer lip 2 and epipharynx 1, epipharynx 1 is provided with 3 secondary lips 3 with a side of piston rod laminating, between secondary lip 3 and epipharynx 1 or be provided with gap between adjacent pair lip 3, epipharynx 1 is 22 ° with the included angle B of piston rod axis, outer lip and the included angle A of epipharynx are that 53 ° and its root are connected by curved surface 4 transition, the radius R of curved surface 4 is 2.3mm, outer lip 2 is 3mm with the thickness d of epipharynx 1, the external diameter M of seal ring is that 141.8mm, internal diameter N are 118.2mm, and wherein, the tip spacing D of adjacent pair lip 3 is 1.5mm.
Claims (1)
1. a y-type seal ring, comprise outer lip and epipharynx, it is characterized in that: a side of described epipharynx and piston rod laminating is provided with 3 secondary lips, described secondary lip is located at described epipharynx root, the gap being provided with between described secondary lip and described epipharynx or between adjacent described secondary lip, the angle of described epipharynx and piston rod axis is 22 °, the angle of described outer lip and described epipharynx is 53 °, and its root connects by surface blending, the radius of described curved surface is 2.3mm, the thickness of described outer lip and described epipharynx is 3mm, the external diameter of described seal ring is 141.8mm, internal diameter is 118.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689438.6U CN203656198U (en) | 2013-11-05 | 2013-11-05 | Y-shaped sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689438.6U CN203656198U (en) | 2013-11-05 | 2013-11-05 | Y-shaped sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656198U true CN203656198U (en) | 2014-06-18 |
Family
ID=50922586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320689438.6U Expired - Fee Related CN203656198U (en) | 2013-11-05 | 2013-11-05 | Y-shaped sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656198U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154232A (en) * | 2014-07-31 | 2014-11-19 | 广东永泉阀门科技有限公司 | Y-shaped sealing ring |
| CN110566539A (en) * | 2019-09-17 | 2019-12-13 | 武汉市荣生密封技术有限公司 | Multi-stage oil cylinder piston rod sealing assembly and hydraulic device |
-
2013
- 2013-11-05 CN CN201320689438.6U patent/CN203656198U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154232A (en) * | 2014-07-31 | 2014-11-19 | 广东永泉阀门科技有限公司 | Y-shaped sealing ring |
| CN110566539A (en) * | 2019-09-17 | 2019-12-13 | 武汉市荣生密封技术有限公司 | Multi-stage oil cylinder piston rod sealing assembly and hydraulic device |
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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: 20140618 Termination date: 20141105 |
|
| EXPY | Termination of patent right or utility model |