CN201093065Y - Piston rod sealing element - Google Patents
Piston rod sealing element Download PDFInfo
- Publication number
- CN201093065Y CN201093065Y CNU2007201021621U CN200720102162U CN201093065Y CN 201093065 Y CN201093065 Y CN 201093065Y CN U2007201021621 U CNU2007201021621 U CN U2007201021621U CN 200720102162 U CN200720102162 U CN 200720102162U CN 201093065 Y CN201093065 Y CN 201093065Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- utility
- model
- sealing element
- piston
- 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 21
- 229920001971 elastomer Polymers 0.000 claims abstract description 12
- 229920002635 polyurethane Polymers 0.000 claims abstract description 9
- 239000004814 polyurethane Substances 0.000 claims abstract description 9
- 239000000806 elastomer Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 4
- 239000003566 sealing material Substances 0.000 abstract description 4
- 230000002457 bidirectional effect Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000006837 decompression Effects 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 239000004744 fabric Substances 0.000 description 3
- 230000000694 effects Effects 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
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003068 static 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 relates to a piston rod sealing element, which comprises an elastic body and an L-shaped guide ring, wherein the elastic body is a rubber drum-type sealing lining whose both ends are provided with steps which are engaged with the L-shaped guide ring, and the outer side of the drum-shaped sealing lining is provided with a polyurethane outer casing, and the outer side of the polyurethane outer casing is provided with bidirectional oblique flanges. The utility model has the advantages that the utility model adopts special sealing material and geometric shape, which has the advantages of compact structure, excellent integral stability, abrasion and sealing property, low friction, excellent decompression resistance capability, anti-collapse property and abrasion resistance. The piston sealing 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 piston seal (TK220BW).
Background technique
The common structure of existing piston Sealing is Y shape circle, cydariform circle, U-shaped envelope, folder cloth combination seal etc., and its major defect is that structure is single, the elastomer material is single, sliding-frictional resistance is big, working life is low, high pressure resistant, poor sealing performance etc.
Summary of the invention
The utility model is in order to solve the structural design of piston seal in the prior art, the sealing material complementarity, high pressure resistant, working life is short, problems such as leakage, 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 stable, meet tolerance, compact structure, resist and extrude damage, wear-resistant, under load, has very high pressure stability, high axially locating performance, the extraordinary anti-reliability of extruding, 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: a kind of piston seal, comprise elastomer, L shaped guide ring, it is characterized in that described elastomer is a rubber cydariform sealed liner, its two ends are provided with the ladder that cooperates with L shaped guide ring, cydariform sealed liner peripheral hardware polyurethane overcoat, the polyurethane overcoat outside is two-way oblique flange.
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 two-way oblique flange to reduce friction ractor; Liner adopts specific rubber to make the drum type seal ring of two ends band ladder, can fully contact with cylinder body; The sealing distortion constitutes the characteristic that piston seal has made full use of each parts institute tool with upper-part when utilizing L type guide ring to prevent high pressure, can resist very high fluid pressure, and have the very long life-span.Adopt Sealing described in the utility model 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 utility model is 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.
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.
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-L shape guide 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.
Piston seal comprises elastomer, L shaped guide ring 3.Elastomer is a rubber cydariform sealed liner 2, and its two ends are provided with the ladder that cooperates with L shaped guide ring 3, cydariform sealed liner 2 peripheral hardware polyurethane overcoats 1, and polyurethane overcoat 1 outside is two-way oblique flange.The outer diameter of piston seal is 50 to 600 millimeters, and inner diameter is 30 to 600 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
Advantage: superior static state and dynamic seal (packing)
Working pressure :≤70Mpa
Movement velocity :≤0.5m/sec
Operating temperature :-30 ℃+100 ℃
Working medium: hydraulic oil, emulsified liquid, water.
Claims (1)
1. piston seal, comprise elastomer, L shaped guide ring (3), it is characterized in that described elastomer is a rubber cydariform sealed liner (2), its two ends are provided with the ladder that cooperates with L shaped guide ring (3), cydariform sealed liner (2) peripheral hardware polyurethane overcoat (1), polyurethane overcoat (1) outside is two-way oblique flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201021621U CN201093065Y (en) | 2007-08-03 | 2007-08-03 | Piston rod sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201021621U CN201093065Y (en) | 2007-08-03 | 2007-08-03 | Piston rod sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201093065Y true CN201093065Y (en) | 2008-07-30 |
Family
ID=39901032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201021621U Expired - Fee Related CN201093065Y (en) | 2007-08-03 | 2007-08-03 | Piston rod sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201093065Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273892A (en) * | 2019-06-21 | 2019-09-24 | 三峡大学 | A kind of multi-chamber hydraulic cylinder for the acquisition of wave energy wideband |
-
2007
- 2007-08-03 CN CNU2007201021621U patent/CN201093065Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273892A (en) * | 2019-06-21 | 2019-09-24 | 三峡大学 | A kind of multi-chamber hydraulic cylinder for the acquisition of wave energy wideband |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080730 Termination date: 20160803 |