CN201866246U - Piston seal for arc-shaped sealing surface of rectangular support ring - Google Patents
Piston seal for arc-shaped sealing surface of rectangular support ring Download PDFInfo
- Publication number
- CN201866246U CN201866246U CN2010205588661U CN201020558866U CN201866246U CN 201866246 U CN201866246 U CN 201866246U CN 2010205588661 U CN2010205588661 U CN 2010205588661U CN 201020558866 U CN201020558866 U CN 201020558866U CN 201866246 U CN201866246 U CN 201866246U
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- China
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- sealing
- ring
- piston seal
- elastic ring
- support ring
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- 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 - Lifetime
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Abstract
The utility model belongs to the technical field of hydraulic and pneumatic sealing elements and particularly relates to a piston seal for an arc-shaped sealing surface of a rectangular support ring. The piston seal aims at solving the problems of single structure, poor complementarity and pressure stability of sealing materials, short service life and serious liquid leakage of a piston sealing element in the prior art. The piston seal is composed of an elastic ring capable of exerting the auxiliary sealing function, a sealing ring sheathed on the elastic ring and a support ring with a rectangular section, wherein the support ring is arranged at the two ends of the sealing ring and is sheathed at the positions of steps at the two ends of the elastic ring; the sealing surface of the sealing ring adopts an arc-shaped structure, a groove is arranged on the surface of the internal circle of the elastic ring, and the section of the elastic ring is T-shaped. The piston seal which adopts unique sealing materials and a geometrical shape is integrally stable and has compact structure, good sealing performance, low friction coefficient, excellent pressure release resisting capability, excellent anti-extrusion capacity and long service life. Therefore, the piston seal is bidirectional and can be widely applied under the working condition of heavy load.
Description
Technical field
The utility model belongs to hydraulic pressure, pneumatic seal technical field, relates to a kind of to-and-fro motion piston seal, is specially the piston seal of rectangle support ring arc sealing surface.
Background technique
Existing piston seals common structure and is Y shape circle, cydariform circle, U-shaped envelope, folder cloth combination seal etc., and its major defect is problems such as structure is single, the elastomer material is single, sliding-frictional resistance is big, working life is low, anti-high pressure difference.
Summary of the invention
The utility model is problems such as the structure of piston seal is single in the prior art, sealing material is complementary, pressure stability is poor, working life is short, leakage in order to solve, and a kind of piston seal of rectangle support ring arc sealing surface is provided.Such closure size is stablized, is met tolerance, compact structure, anti-ly extrudes damages, wear-resistant, has pressure stability under load, and good, the anti-extrusion performance of axially locating is splendid, high abrasion, the low friction, and no creeping phenomenon, high low pressure sealability are reliable.
The utility model adopts following technological scheme to realize: the piston seal of rectangle support ring arc sealing surface, by an elastic ring that plays the sealing booster action, to be placed in the seal ring on the elastic ring and to be positioned at the seal ring two ends and to be placed in cross section, step place, elastic ring two ends be that the support ring of rectangle constitutes, the sealing surface of seal ring (outer round surface of seal ring) is an arcuate structure, and the cross section that the internal circular surfaces of elastic ring has groove and this ring is a T shape.
Main improvement of the present utility model is that all parts adopt unique technology to guarantee the precision and the whole sealing effect of product, and the sealing surface of seal ring adopts arcuate structure, and is easy for installation, friction ractor is little; Elastic ring is the T shape sealed member of band groove, and the deformation when effectively compensation sealing is along with working conditions change prevents to seal whole axial float simultaneously; Bad seals when the design of rectangle support ring prevents high pressure and distortion, the piston seal that constitutes with upper-part has made full use of the characteristic that each parts and material itself are had, can play the effect of low pressure no leakage, the anti-damage of high pressure along with the variation of operating mode, and have long working life.Adopt Sealing described in the utility model to improve the anti-side pressure and the wear resistance of sealing, can bear the sealing medium of low pressure, high pressure for a long time, stop its sealing medium to leak out Seal cage, reduced the to-and-fro motion number of times when frequent seal ring and cylinder body friction produce heating and wearing and tearing, install simple and convenient, easy damaged seal ring not.
The relative prior art of the utility model has following beneficial effect: adopted unique sealing material and geometrical shape, compact structure, monolithic stability, good seal performance, friction factor are little, having good anti-pressure release ability, anti-extruding and working life, is a kind of bidirectional piston sealing that is widely used under the severe duty.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Among the figure: 1, seal ring, 2, the rectangle support ring, 3, elastic ring
Embodiment
In conjunction with the accompanying drawings embodiment of the present utility model is described further, embodiment is used for illustrating of the present utility model, rather than it is imposed any restrictions.
The piston seal of rectangle support ring arc sealing surface, by an elastic ring 3 that plays the sealing booster action, to be placed in the seal ring 1 on the elastic ring 3 and to be positioned at the seal ring two ends and to be placed in cross section, step place, elastic ring two ends be that the support ring 2 of rectangle constitutes, the sealing surface of described seal ring 1 (outer round surface of seal ring) is an arcuate structure, and the cross section that the internal circular surfaces of elastic ring 3 has groove and this ring is a T shape.The size of piston seal can require design, customized according to reality, alternative original sealing configuration under the situation that does not change existing groove, and this structure has advantages such as anti-high pressure, high abrasion, good sealing effect, is used for the heavy-duty machinery industry more.
Claims (1)
1. the piston seal of a rectangle support ring arc sealing surface, it is characterized by: by an elastic ring (3) that plays the sealing booster action, to be placed in the seal ring (1) on the elastic ring (3) and to be positioned at the seal ring two ends and to be placed in cross section, step place, elastic ring two ends be that the support ring (2) of rectangle constitutes, the sealing surface of seal ring (1) is an arcuate structure, and the cross section that the internal circular surfaces of elastic ring (3) has groove and this ring is a T shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205588661U CN201866246U (en) | 2010-10-13 | 2010-10-13 | Piston seal for arc-shaped sealing surface of rectangular support ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205588661U CN201866246U (en) | 2010-10-13 | 2010-10-13 | Piston seal for arc-shaped sealing surface of rectangular support ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201866246U true CN201866246U (en) | 2011-06-15 |
Family
ID=44137402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205588661U Expired - Lifetime CN201866246U (en) | 2010-10-13 | 2010-10-13 | Piston seal for arc-shaped sealing surface of rectangular support ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201866246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954222A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Piston rod sealing part |
-
2010
- 2010-10-13 CN CN2010205588661U patent/CN201866246U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954222A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Piston rod sealing part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170426 Address after: 034100 West Road, Yuanping, Shanxi Patentee after: Shanxi Tai Bao Technology Co., Ltd. Address before: 034100 Luneng Road West, Shanxi, Yuanping Patentee before: Shanxi Taibao Sealing Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |
|
| CX01 | Expiry of patent term |