CN202431975U - Self-lubricating V-shaped textile sealing ring - Google Patents
Self-lubricating V-shaped textile sealing ring Download PDFInfo
- Publication number
- CN202431975U CN202431975U CN2011205593255U CN201120559325U CN202431975U CN 202431975 U CN202431975 U CN 202431975U CN 2011205593255 U CN2011205593255 U CN 2011205593255U CN 201120559325 U CN201120559325 U CN 201120559325U CN 202431975 U CN202431975 U CN 202431975U
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- CN
- China
- Prior art keywords
- annular groove
- seal ring
- sealing ring
- sealing
- lubricating
- 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 Devices (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses a self-lubricating V-shaped textile sealing ring, which uses a direction which is close to a circle center of the sealing ring as an inward direction, and uses a direction which is far from the circle center of the sealing ring as an outward direction. The sealing ring comprises a sealing face of an outermost layer and a supporting face of an innermost layer; an annular groove is arranged in the middle of the sealing face; the cross section of the annular groove is V-shaped; single-lip sealing faces are respectively formed at the both sides of the annular groove; and an included angle between two inner surfaces of an upper section of the annular groove is 50-60 degrees. The self-lubricating V-shaped textile sealing ring provided by the utility model utilizes a sealing face with a double-lip structure and has a good sealing effect. The included angle between the two inner surfaces of the upper section of the annular groove is changed from 90 degrees in the traditional self-lubricating V-shaped textile sealing ring to 50-60 degrees in the self-lubricating V-shaped textile sealing ring provided by the utility model, so that the thickness of the sealing face is increased; the abrasion resistance is improved; and the service life is prolonged. The self-lubricating V-shaped textile sealing ring provided by the utility model is used as a sealing ring for a shield machine piston, so as to achieve an obvious anti-damage effect and obviously prolong the service life.
Description
Technical field
The utility model relates to a kind of seal ring, relates in particular to the selflubricating V-arrangement folder cloth seal ring that a kind of shield machine piston is used.
Background technique
At present, no matter be weak soil shield machine, hard rock shield machine, or the hybrid type shield machine, owing to contact with materials such as rubble, silt, dusts for a long time, to the very high requirement that is sealed with of its assembly; The seal ring of piston portion particularly, because long-time high-intensity work, the sealing circle suffers damage easily, damage in the seal ring edge that causes piston rod to be damaged, plucking; Influence its sealing effect, and further influence the proper functioning of shield machine.Summary of the invention
The selflubricating V-arrangement folder cloth seal ring of the purpose of the utility model with regard to being to provide a kind of shield machine piston to use in order to address the above problem, the anti-effect of decreasing of this seal ring is remarkable, and the life-span obviously prolongs.
The utility model is realized above-mentioned purpose through following technological scheme:
In the utility model, being inward direction with the direction near the said seal ring center of circle, is outward direction with the direction away from the said seal ring center of circle, and said seal ring comprises the supporting surface of outermost sealing surface and innermost layer; The middle part of said sealing surface is provided with annular groove, and the sectional shape of said annular groove is a V-arrangement, and said annular groove both sides form single lip seal face respectively; Angle between two internal surfaces of said annular groove epimere is 50 °-60 °.
The utility model adopts the sealing surface of lips structure, its good sealing effect; And with the angle between two internal surfaces of annular groove epimere by traditional 90 ° change the utility model into 50 °-60 °, increased the thickness of sealing surface, increased abrasion resistance properties.
As preferably, the angle between two internal surfaces of said annular groove epimere is 55 °.
As optimal selection, said seal ring is the inner rubber folder cloth seal ring that is added with the inconsistent plasticizing agent of rubber material; Further, said plasticizing agent is a diethylene glycol dibenzoate.In the utility model using process, inner plasticizing agent can be extruded out and reach lubrication effect, can reduce friction.
Further, the outside of said single lip seal face of said annular groove both sides is provided with evagination circular arc sealing surface.Evagination circular arc sealing surface has further increased wear-resisting property as the transition sealing surface.
As preferably, said evagination circular arc sealing surface is arranged at the position of the end face below 1mm of said single lip seal face.
The beneficial effect of the utility model is:
The utility model adopts the sealing surface of lips structure, its good sealing effect; By traditional 90 ° change the utility model into 50 °-60 °, the best is 55 °, has increased the thickness of sealing surface, has increased abrasion resistance properties, increases the service life with the angle between two internal surfaces of annular groove epimere; Adopt the seal ring of rubber folder cloth structure, increased the rigidity and the intensity of seal ring greatly, solved the problem of sealing lip extrusion-deformation; Through design evagination circular arc sealing surface below sealing lip, further effectively prevented the damage of seal ring; Through adding and the inconsistent plasticizing agent of rubber material in inside, make the utility model carry lubricating function, reduced frictional force, prolonged the working life of the utility model.
Description of drawings
Fig. 1 is the plan view of the utility model;
Fig. 2 is the A-A amplification view among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As depicted in figs. 1 and 2, be inward direction with direction near the center of circle of seal ring 1, be outward direction with direction away from the center of circle of seal ring 1, seal ring 1 comprises the supporting surface 6 of outermost sealing surface 5 and innermost layer; The middle part of sealing surface 5 is provided with annular groove 2, and the sectional shape of annular groove 2 is a V-arrangement, and annular groove 2 both sides form single lip seal face 5 respectively; Angle between two internal surfaces 7 of annular groove 2 epimeres is 55 °.
As depicted in figs. 1 and 2, seal ring 1 is the inner rubber folder cloth seal ring that is added with diethylene glycol dibenzoate.In the utility model using process, inner diethylene glycol dibenzoate can be extruded out and reach lubrication effect, can reduce friction.
As shown in Figure 2, the position of the outer side-lower 1mm of the end face of single lip seal face 5 of annular groove 2 both sides is provided with evagination circular arc sealing surface 3.Evagination circular arc sealing surface 3 has further increased wear-resisting property as the transition sealing surface.
As depicted in figs. 1 and 2, in the application process, the sealing surface 5 of the lips structure of annular groove 2 both sides forms sealing with the inner face of shield machine piston (not shown), can realize excellent sealing performance.And the thickness of sealing surface 5 is compared traditional 90 ° because of the angle between two internal surfaces 7 and is reduced to 55 ° and increases, and abrasive resistance strengthens; 4 on the inclined-plane of supporting surface 6 both sides can guarantee that the utility model has enough support forces.
Claims (6)
1. a selflubricating V-arrangement folder cloth seal ring is an inward direction with the direction near the said seal ring center of circle, is outward direction with the direction away from the said seal ring center of circle, and said seal ring comprises the supporting surface of outermost sealing surface and innermost layer; It is characterized in that: the middle part of said sealing surface is provided with annular groove, and the sectional shape of said annular groove is a V-arrangement, and said annular groove both sides form single lip seal face respectively; Angle between two internal surfaces of said annular groove epimere is 50 °-60 °.
2. selflubricating V-arrangement folder cloth seal ring according to claim 1, it is characterized in that: the angle between two internal surfaces of said annular groove epimere is 55 °.
3. selflubricating V-arrangement according to claim 1 folder cloth seal ring is characterized in that: said seal ring is the inner rubber folder cloth seal ring that is added with the inconsistent plasticizing agent of rubber material.
4. selflubricating V-arrangement folder cloth seal ring according to claim 3, it is characterized in that: said plasticizing agent is a diethylene glycol dibenzoate.
5. selflubricating V-arrangement folder cloth seal ring according to claim 1, it is characterized in that: the outside of said single lip seal face of said annular groove both sides is provided with evagination circular arc sealing surface.
6. selflubricating V-arrangement folder cloth seal ring according to claim 5 is characterized in that: said evagination circular arc sealing surface is arranged at the position of the end face below 1mm of said single lip seal face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205593255U CN202431975U (en) | 2011-12-29 | 2011-12-29 | Self-lubricating V-shaped textile sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205593255U CN202431975U (en) | 2011-12-29 | 2011-12-29 | Self-lubricating V-shaped textile sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202431975U true CN202431975U (en) | 2012-09-12 |
Family
ID=46781421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205593255U Expired - Fee Related CN202431975U (en) | 2011-12-29 | 2011-12-29 | Self-lubricating V-shaped textile sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202431975U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603415A (en) * | 2013-05-20 | 2014-02-26 | 北京印刷学院 | Lift type water tank |
| CN106523705A (en) * | 2016-12-07 | 2017-03-22 | 沈阳橡胶研究设计院有限公司 | Assembly sealing ring of transitional section of aircraft engine and manufacturing and assembling method |
| CN110260229A (en) * | 2019-06-24 | 2019-09-20 | 海洋王照明科技股份有限公司 | Ceiling light |
| CN110805738A (en) * | 2019-10-25 | 2020-02-18 | 托伦斯精密机械（上海）有限公司 | Sealing structure of vacuum plugboard switch valve |
-
2011
- 2011-12-29 CN CN2011205593255U patent/CN202431975U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603415A (en) * | 2013-05-20 | 2014-02-26 | 北京印刷学院 | Lift type water tank |
| CN106523705A (en) * | 2016-12-07 | 2017-03-22 | 沈阳橡胶研究设计院有限公司 | Assembly sealing ring of transitional section of aircraft engine and manufacturing and assembling method |
| CN110260229A (en) * | 2019-06-24 | 2019-09-20 | 海洋王照明科技股份有限公司 | Ceiling light |
| CN110805738A (en) * | 2019-10-25 | 2020-02-18 | 托伦斯精密机械（上海）有限公司 | Sealing structure of vacuum plugboard switch valve |
| CN110805738B (en) * | 2019-10-25 | 2024-06-11 | 托伦斯半导体设备启东有限公司 | Sealing structure of vacuum plugboard switch valve |
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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: 20120912 Termination date: 20151229 |
|
| EXPY | Termination of patent right or utility model |