CN201810772U - Piston seal for toothed sealing surface of rectangular support ring - Google Patents
Piston seal for toothed sealing surface of rectangular support ring Download PDFInfo
- Publication number
- CN201810772U CN201810772U CN2010205588515U CN201020558851U CN201810772U CN 201810772 U CN201810772 U CN 201810772U CN 2010205588515 U CN2010205588515 U CN 2010205588515U CN 201020558851 U CN201020558851 U CN 201020558851U CN 201810772 U CN201810772 U CN 201810772U
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- CN
- China
- Prior art keywords
- ring
- sealing
- piston seal
- support ring
- sealing surface
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 33
- 230000009471 action Effects 0.000 claims description 3
- 239000003566 sealing material Substances 0.000 abstract description 4
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 230000000295 complement effect Effects 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 230000006837 decompression Effects 0.000 abstract 1
- 229920001971 elastomer Polymers 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model belongs to the technical field of hydraulic and pneumatic sealing elements, in particular to the piston seal for a toothed sealing surface of a rectangular support ring, and solves the problems of the piston seal in the prior art that the structure is single, the sealing material complementary property and the pressure stability are inferior, the service life is short, the liquid is possible to leak, and the like. The piston seal comprises an elastic ring having a sealing subsidiary function, a sealing ring sleeved on the elastic ring, and a support ring which is positioned on two ends of the sealing ring and sleeved at the stairs on two ends of the elastic ring, and has a rectangular section, wherein the sealing surface of the sealing ring is a toothed structure; the inner circular surface of the elastic ring is provided with a slot; and the cross section of the ring is T-shaped. By using the unique sealing material and geometry, the piston seal for a toothed sealing surface of a rectangular support ring in the utility model has the advantages of compact structure, integrated stability, high sealing property, small frictional factor, high decompression capability, and excellent anti-extrusion property and durability. The piston seal in the utility model is a bidirectional piston seal widely applied under the heavy load 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 rectangle support ring dentation 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 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 rectangle 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, 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 a dentation 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 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; Elastomer adopts 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 square type support ring to prevent to be partial to load and high pressure constitutes the characteristic that piston seal has made full use of each component materials, structure with upper-part, can resist very high fluid pressure, has long working life.Adopt Sealing 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, 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 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 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 (outer round surface of seal ring) is a dentation 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 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, step place, elastic ring two ends be that the support ring (2) of rectangle constitutes, the sealing surface of seal ring (1) is a dentation 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 |
|---|---|---|---|
| CN2010205588515U CN201810772U (en) | 2010-10-13 | 2010-10-13 | Piston seal for toothed sealing surface of rectangular support ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205588515U CN201810772U (en) | 2010-10-13 | 2010-10-13 | Piston seal for toothed sealing surface of rectangular support ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810772U true CN201810772U (en) | 2011-04-27 |
Family
ID=43893713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205588515U Expired - Lifetime CN201810772U (en) | 2010-10-13 | 2010-10-13 | Piston seal for toothed sealing surface of rectangular support ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810772U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954219A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Piston sealing part |
| 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 |
| CN105736703A (en) * | 2014-12-24 | 2016-07-06 | Nok株式会社 | Sealing device |
| CN106678368A (en) * | 2016-11-30 | 2017-05-17 | 马鞍山中力密封科技有限公司 | Coal mill inserting plate door sealing part and sealing structure |
-
2010
- 2010-10-13 CN CN2010205588515U patent/CN201810772U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954219A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Piston sealing part |
| 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 |
| CN105736703A (en) * | 2014-12-24 | 2016-07-06 | Nok株式会社 | Sealing device |
| CN106678368A (en) * | 2016-11-30 | 2017-05-17 | 马鞍山中力密封科技有限公司 | Coal mill inserting plate door sealing part and sealing structure |
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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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170418 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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110427 |