CN201093064Y - Piston rod sealing element - Google Patents
Piston rod sealing element Download PDFInfo
- Publication number
- CN201093064Y CN201093064Y CNU2007201021617U CN200720102161U CN201093064Y CN 201093064 Y CN201093064 Y CN 201093064Y CN U2007201021617 U CNU2007201021617 U CN U2007201021617U CN 200720102161 U CN200720102161 U CN 200720102161U CN 201093064 Y CN201093064 Y CN 201093064Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- piston
- utility
- guide ring
- model
- 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
Links
- 238000007789 sealing Methods 0.000 title abstract description 23
- 229920001971 elastomer Polymers 0.000 claims abstract description 14
- 229920002635 polyurethane Polymers 0.000 claims abstract description 14
- 239000004814 polyurethane Substances 0.000 claims abstract description 14
- 239000000806 elastomer Substances 0.000 claims description 9
- 238000005299 abrasion Methods 0.000 abstract description 4
- 239000003566 sealing material Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000006837 decompression Effects 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Sealing Devices (AREA)
Abstract
The utility model particularly relates to a piston sealing element for fluid-pressure alternating motion, which belongs to the technical field of fluid pressure and air-operated sealing elements. The utility model solves the problems of structural design of the piston rod sealing element, complementarity of sealing materials, high temperature resistance, short service life and liquid leakage and the like in the prior art. The utility model comprises an elastic body and a guide ring, wherein the guide ring is a flat retaining ring structure, the elastic body is a rubber drum-shaped sealing lining, both ends are provided with steps which are matched with the guide ring, and the outer side is provided with a polyurethane outer casing, the matching surface of the drum-shaped sealing lining and the polyurethane outer casing is arc shaped, and the outer side of the polyurethane outer casing is provided with three flanges. The piston sealing element of the utility model has the advantages that the piston sealing element adopts special sealing material and geometric shape, which has compact structure, excellent integral stability, abrasion and sealing property, low friction, excellent decompression resistance capability, anti-collapse property and abrasion resistance. The piston packing element is a heavy-load bidirectional piston sealing ring, which is particularly suitable for high pressure, and is generally used on mining industry.
Description
Technical field
The utility model belongs to hydraulic pressure, pneumatic seal technical field, is specifically related to a kind of hydraulic reciprocating movement with sealing, is suitable for the supporting piston seal of hydraulic cylinder piston (TK222B).
Background technique
The common structure of existing piston Sealing comprises elastomer, guide ring, and its major defect is that structure is single, the elastomer material is single, sliding-frictional resistance is big, working life low, high pressure resistant, poor sealing performance etc.
Summary of the invention
The utility model is for problems such as the structural design that solves piston seal in the prior art, sealing material complementarity, high pressure resistant, working life weak point, leakages, provide a kind of under high pressure and low pressure operating mode the heavy duty sealing and the piston seal of usefulness, 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 are splendid.
The utility model adopts following technological scheme to realize: a kind of piston seal, comprise elastomer, guide ring, it is characterized in that described guide ring is the loose rib structure, elastomer is a rubber cydariform sealed liner, its two ends are provided with the ladder that cooperates with guide ring, the outside is provided with the polyurethane overcoat, and the fitting surface of cydariform sealed liner and polyurethane overcoat is an arc, the arranged outside three road flanges of polyurethane overcoat.
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.Sealing surface adopts the design of three road flanges to increase sealing effect, and lubrication is played in the gully in the middle of simultaneously; Elastomer adopts specific rubber to make the drum type seal ring of band ladder, utilizes Expansion sealing; The sealing distortion constituted the characteristic that piston seal has made full use of each parts institute tool with upper-part when back-up ring prevented high pressure, can resist very high fluid pressure, and have the very long life-span.Adopt the utility model seal ring to improve the anti-side pressure and the wear resistance of sealing, can bear the sealing medium (liquid, gas) of high pressure for a long time, stop its sealing medium to leak out Seal cage, avoid the friction of high pressure lower seal and cylinder body to produce heating and wearing and tearing, and, high pressure makes seal failure because of causing lip to turn up, install simple and convenient, the operating life that has prolonged seal ring.
The relative prior art of the utility model has following beneficial effect: adopted unique sealing material and geometrical shape, compact structure, general stability, wear-resisting, good seal performance, low friction, have good anti-pressure release ability, anti-extruding and wear-resisting property, it is a kind of heavily loaded bidirectional piston seal ring under the high pressure operating mode of extensive use, especially be fit to high pressure, be used for mine industry more.Alternative existing folder cloth piston seal under the situation that does not change existing groove has changed the boundary that in the past seals GB and nonstandard size simultaneously, adapts to the design of various grooves.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Among the figure: 1-polyurethane overcoat, 2-cydariform sealed liner, 3-guide ring, 4-flange
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.
Piston seal comprises elastomer, guide ring 3.Guide ring 3 is the loose rib structure, elastomer is a rubber cydariform sealed liner 2, and its two ends are provided with the ladder that cooperates with guide ring 3, and the outside is provided with polyurethane overcoat 1, cydariform sealed liner 2 is an arc with the fitting surface of polyurethane overcoat 1, the arranged outside flange 4 of polyurethane overcoat 1.Flange 4 is three roads.
Outer diameter of the present utility model is 50 to 600 millimeters, and inner diameter is 30 to 570 millimeters, has anti-high pressure, high abrasion, and advantage of good sealing effect is used for mine industry more.Alternative existing folder cloth piston seal under the situation that does not change existing groove has changed the boundary that in the past seals GB and nonstandard size simultaneously.
Main duty parameter of the present utility model is as follows:
The main application: be used for shoring, standard cylinder and cylinder
Working pressure :≤70Mpa
Reciprocating speed :≤0.3m/sec
Operating temperature :-30 ℃+100 ℃
Working medium: hydraulic oil, emulsified liquid, water.
Claims (2)
1. piston seal, comprise elastomer, guide ring (3), it is characterized in that described guide ring (3) is the loose rib structure, elastomer is a rubber cydariform sealed liner (2), its two ends are provided with the ladder that cooperates with guide ring (3), the outside is provided with polyurethane overcoat (1), and cydariform sealed liner (2) is an arc with the fitting surface of polyurethane overcoat (1), the arranged outside flange (4) of polyurethane overcoat (1).
2. piston seal according to claim 1 is characterized in that the arranged outside three road flanges (4) of described polyurethane overcoat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201021617U CN201093064Y (en) | 2007-08-03 | 2007-08-03 | Piston rod sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201021617U CN201093064Y (en) | 2007-08-03 | 2007-08-03 | Piston rod sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201093064Y true CN201093064Y (en) | 2008-07-30 |
Family
ID=39901031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201021617U Expired - Fee Related CN201093064Y (en) | 2007-08-03 | 2007-08-03 | Piston rod sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201093064Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213316A (en) * | 2011-05-24 | 2011-10-12 | 山西浩业通用设备有限公司 | Combined drum-type seal ring and preparation method thereof |
| CN102367868A (en) * | 2011-10-26 | 2012-03-07 | 太仓市明宇密封件有限公司 | Combined seal ring for CST hole |
| CN102588589A (en) * | 2012-03-05 | 2012-07-18 | 东莞市志强纤维棉制品有限公司 | Dehumidifier sealing ring and production method for same |
| CN102937182A (en) * | 2012-11-19 | 2013-02-20 | 无锡市京锡冶金液压机电有限公司 | Hydraulic cylinder piston sealing structure of punch hydraulic system |
| CN102954211A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Piston sealing part |
| CN103671926A (en) * | 2013-11-26 | 2014-03-26 | 山西浩业通用设备有限公司 | Composite type drum-shaped seal ring provided with T-shaped guide rings |
| CN103671927A (en) * | 2013-11-26 | 2014-03-26 | 山西浩业通用设备有限公司 | Composite type drum-shaped seal ring provided with L-shaped check rings |
| CN105972209A (en) * | 2016-07-04 | 2016-09-28 | 无锡欧洛普科技有限公司 | Sealing ring used for natural gas compression cylinder |
| CN105972202A (en) * | 2016-07-04 | 2016-09-28 | 无锡欧洛普科技有限公司 | Abrasion-resisting piston sealing ring for natural gas compression cylinder |
-
2007
- 2007-08-03 CN CNU2007201021617U patent/CN201093064Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213316A (en) * | 2011-05-24 | 2011-10-12 | 山西浩业通用设备有限公司 | Combined drum-type seal ring and preparation method thereof |
| CN102213316B (en) * | 2011-05-24 | 2014-05-28 | 山西浩业通用设备有限公司 | Combined drum-type seal ring and preparation method thereof |
| CN102954211A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Piston sealing part |
| CN102367868A (en) * | 2011-10-26 | 2012-03-07 | 太仓市明宇密封件有限公司 | Combined seal ring for CST hole |
| CN102588589A (en) * | 2012-03-05 | 2012-07-18 | 东莞市志强纤维棉制品有限公司 | Dehumidifier sealing ring and production method for same |
| CN102588589B (en) * | 2012-03-05 | 2015-04-15 | 东莞市志强纤维棉制品有限公司 | Dehumidifier sealing ring and production method for same |
| CN102937182A (en) * | 2012-11-19 | 2013-02-20 | 无锡市京锡冶金液压机电有限公司 | Hydraulic cylinder piston sealing structure of punch hydraulic system |
| CN103671926A (en) * | 2013-11-26 | 2014-03-26 | 山西浩业通用设备有限公司 | Composite type drum-shaped seal ring provided with T-shaped guide rings |
| CN103671927A (en) * | 2013-11-26 | 2014-03-26 | 山西浩业通用设备有限公司 | Composite type drum-shaped seal ring provided with L-shaped check rings |
| CN105972209A (en) * | 2016-07-04 | 2016-09-28 | 无锡欧洛普科技有限公司 | Sealing ring used for natural gas compression cylinder |
| CN105972202A (en) * | 2016-07-04 | 2016-09-28 | 无锡欧洛普科技有限公司 | Abrasion-resisting piston sealing ring for natural gas compression cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANXI TAIBAO SEAL CO., LTD. Free format text: FORMER OWNER: WANG JINPING Effective date: 20101019 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 034100 NO.1115, YONGKANG SOUTH ROAD, YUANPING CITY, SHANXI PROVINCE TO: 034100 LUNENG AVENUE (WEST), YUANPING CITY, SHANXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101019 Address after: 034100 Luneng Road West, Shanxi, Yuanping Patentee after: Shanxi Taibao Sealing Co., Ltd. Address before: 034100 No. 1115 South Yongkang Road, Shanxi, Yuanping Patentee before: Wang Jinping |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080730 Termination date: 20160803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |