CN201795044U - Piston seal for T-shaped support ring dentiform seal surface - Google Patents
Piston seal for T-shaped support ring dentiform seal surface Download PDFInfo
- Publication number
- CN201795044U CN201795044U CN2010205411869U CN201020541186U CN201795044U CN 201795044 U CN201795044 U CN 201795044U CN 2010205411869 U CN2010205411869 U CN 2010205411869U CN 201020541186 U CN201020541186 U CN 201020541186U CN 201795044 U CN201795044 U CN 201795044U
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- Prior art keywords
- seal
- ring
- elastic ring
- piston
- piston seal
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- Expired - Lifetime
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Abstract
The utility model belongs to the technical field of hydraulic and pneumatic seal elements, particularly discloses a piston seal for a T-shaped support ring dentiform seal surface, and solves the problems of single structure, low complementarity and pressure stability of a sealing material, short service life, leakage and the like in the piston seal in the prior art. The piston seal consists of an elastic ring for playing an auxiliary role in seal, a seal ring which is sleeved on the elastic ring, and a support ring which is positioned at two ends of the seal ring and sleeved at a step of two ends of the elastic ring and has a T-shaped section; the seal surface of the seal ring has a dentiform structure; the two ends of the elastic ring are provided with the step; the basic section of the elastic ring has a drum shape; and the elastic ring and the seal ring are in arc fit. The unique sealing material and geometry are used, so that the piston seal has a compact structure, high sealing property, small friction coefficient, and high pressure relief prevention capacity, extrusion prevention capacity and wear-resisting property, and is wholly stable and is the double-direction piston seal which is widely applied to an overload working condition.
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 T shape support ring dentation sealing surface.
Background technique:
The common structure of existing piston Sealing is Y shape circle, cydariform circle, U type envelope, folder cloth combination seal etc., and its major defect is problems such as structure is single, the elastic ring 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 T shape support ring dentation sealing surface is provided.Such closure size is stablized, is met tolerance, compact structure, resists and extrude damage, wear-resistant, under load, has very high pressure stability, high axially locating performance, extraordinary anti-extrude reliability, high abrasion, low friction, no stick-slip phenomenon, anti-extrusion performance is splendid, surface friction drag is little, the high low pressure sealability is reliable.
The utility model adopts following technological scheme to realize: the piston seal of T shape support ring dentation 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, ladder place, elastic ring two ends be that T shape support ring constitutes, the sealing surface of seal ring (outer round surface of seal ring) is dentation structure (the uniform groove in primary seal band both sides of seal ring), the fundamental section that the two ends of elastic ring have ladder and this ring is a cydariform, cooperating for arc between elastic ring and the seal ring.
Main improvement of the present utility model is that all parts adopt unique turning process to guarantee the precision and the whole sealing effect of product; The design of the primary sealing area dentation of seal ring can be stored the liquid medium of a little when making the sealing to-and-fro motion, has increased the greasy property of sealing, has reduced friction ractor; Elastic ring is the cydariform rubber components of two ends band ladder, can fully contact with seal ring, support ring, and is integrally-built stable when keeping the piston seal to-and-fro motion; The distortion that seals when utilizing T shape support ring to prevent to be partial to load and high pressure constitutes piston seal with upper-part and has made full use of each component materials, characteristic that structure was had, can resist very high fluid pressure, has long working life.Adopt piston seal described in the utility model to improve the anti-side pressure and the greasy property of sealing, what can keep-up pressure for a long time is stable, stop its sealing medium to leak out Seal cage, reduce the heel and toe wear of unbalance loading, high pressure lower seal and cylinder body, and, high pressure makes seal failure because of causing lip to turn up, install simple and conveniently, prolonged the working life of sealing.
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 wear-resisting property, 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, T shape 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 T shape support ring dentation 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 seal ring 1 two ends and to be placed in cross section, ladder place, elastic ring 3 two ends be that T shape support ring 2 constitutes, the sealing surface of seal ring 1 (outer round surface of seal ring) is dentation structure (the uniform groove in primary seal band both sides of seal ring 1), the fundamental section that the two ends of elastic ring 3 have ladder and this ring is a cydariform, cooperating for arc between elastic ring 3 and the seal ring 1.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 T shape support ring dentation 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 seal ring (1) two ends and to be placed in cross section, ladder place, elastic ring (3) two ends be that the support ring (2) of T shape constitutes, the sealing surface of seal ring (1) is a dentation structure, the fundamental section that the two ends of elastic ring (3) have ladder and this ring is a cydariform, cooperates for arc between elastic ring (3) and the seal ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205411869U CN201795044U (en) | 2010-09-26 | 2010-09-26 | Piston seal for T-shaped support ring dentiform seal surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205411869U CN201795044U (en) | 2010-09-26 | 2010-09-26 | Piston seal for T-shaped support ring dentiform seal surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201795044U true CN201795044U (en) | 2011-04-13 |
Family
ID=43849952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205411869U Expired - Lifetime CN201795044U (en) | 2010-09-26 | 2010-09-26 | Piston seal for T-shaped support ring dentiform seal surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201795044U (en) |
-
2010
- 2010-09-26 CN CN2010205411869U patent/CN201795044U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160927 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. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110413 |
|
| CX01 | Expiry of patent term |