CN201884658U - Sealing ring of hydraulic cylinder piston - Google Patents
Sealing ring of hydraulic cylinder piston Download PDFInfo
- Publication number
- CN201884658U CN201884658U CN201020622221XU CN201020622221U CN201884658U CN 201884658 U CN201884658 U CN 201884658U CN 201020622221X U CN201020622221X U CN 201020622221XU CN 201020622221 U CN201020622221 U CN 201020622221U CN 201884658 U CN201884658 U CN 201884658U
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- seal ring
- cylinder piston
- ring
- ptfe
- 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
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Abstract
The utility model relates to a sealing piece, in particular to a sealing ring of a hydraulic cylinder piston. In the sealing ring, a combined structure of PTFE (polytetrafluoroethylene) supporting ring and a polyurethane sealing ring is adopted, so that the hydraulic cylinder piston can be guaranteed to be reliable in sealing, flexible in movement, high in working efficiency and long in service life; and the sealing piece has the advantages of being good in resilience, compressive deformation and oil resistance and being capable of meeting the needs of practical conditions.
Description
Technical field
The utility model relates to a kind of Sealing, especially a kind of hydraulic cylinder piston seal ring.
Background technique
The ubiquitous problem of its seal ring of piston of oil hydraulic cylinder is at present, when pistons work, the pressure of liquid can increase, thereby make the contact pressure between seal ring and cylinder body also increase, and contact width also can increase and increase apparent in view, thereby cause the mobile surface friction drag of piston to increase, so not only reduced working efficiency, and very influence working life of piston packing, and need a kind ofly can guarantee that piston seal is reliable for this reason, move flexibly, high working efficiency, long service life, and good rebound elasticity is arranged, press the hydraulic cylinder piston seal ring of change and oil resistance, satisfy the needs of actual conditions with this.
The model utility content
A kind of hydraulic cylinder piston seal ring of the present utility model, by adopting the composite structure of PTFE bracing ring and polyurethane seal ring, the assurance piston seal is reliable, move flexibly, high working efficiency, long service life, and have good rebound elasticity, pressure change and oil resistance, can satisfy the needs of actual conditions.
The technological scheme that the utility model adopted is:
A kind of hydraulic cylinder piston seal ring is characterized in that: comprise the polyurethane seal ring and be arranged on the polyurethane seal ring outside and the combined with it PTFE bracing ring that plays the support lubrication; The inside and outside both sides of polyurethane seal ring all respectively are provided with two lips, and its inboard two lips play the effect of static seal in the bottom of groove, and its outside twice lip plays the effect of double-sealing; The PTFE bracing ring that the material that adopts PTFE powder and bronze to mix is made is provided with osculum, thereby plays leading role.
A kind of hydraulic cylinder piston seal ring of the present utility model, by adopting the composite structure of PTFE bracing ring and polyurethane seal ring, the assurance piston seal is reliable, move flexibly, high working efficiency, long service life, and have good rebound elasticity, pressure change and oil resistance, can satisfy the needs of actual conditions.
Description of drawings
Fig. 1 is the structural representation of a kind of hydraulic cylinder piston seal ring of the present utility model;
Fig. 2 is a kind of hydraulic cylinder piston seal ring PTFE bracing ring structural representation of the present utility model;
Fig. 3 is a kind of hydraulic cylinder piston seal ring polyurethane ring structure schematic representation of the present utility model.
Wherein, 1 is the PTFE bracing ring, and 2 is the polyurethane seal ring.
Embodiment
Embodiment
As shown in Figure 1 to Figure 3, a kind of hydraulic cylinder piston seal ring is characterized in that: comprise polyurethane seal ring 2 and be arranged on polyurethane seal ring 2 outsides and the combined with it PTFE bracing ring 1 that plays the support lubrication; The inside and outside both sides of polyurethane seal ring 2 all respectively are provided with two lips, and its inboard two lips play the effect of static seal in the bottom of groove, and its outside twice lip plays the effect of double-sealing; The PTFE bracing ring 1 that the material that adopts PTFE powder and bronze to mix is made is provided with osculum, thereby plays leading role.
A kind of hydraulic cylinder piston seal ring of the present utility model, by adopting the composite structure of PTFE bracing ring and polyurethane seal ring, the assurance piston seal is reliable, move flexibly, high working efficiency, long service life, and have good rebound elasticity, pressure change and oil resistance, can satisfy the needs of actual conditions.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here can't give exhaustive to all mode of executions.Everyly belong to the row that conspicuous variation that the technical solution of the utility model extends out or change still are in protection domain of the present utility model.
Claims (1)
1. a hydraulic cylinder piston seal ring is characterized in that: comprise polyurethane seal ring (2) and be arranged on polyurethane seal ring (2) outside and the combined with it PTFE bracing ring (1) that plays the support lubrication; The inside and outside both sides of polyurethane seal ring (2) all respectively are provided with two lips, and its inboard two lips play the effect of static seal in the bottom of groove, and its outside twice lip plays the effect of double-sealing; PTFE bracing ring (1) is provided with osculum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020622221XU CN201884658U (en) | 2010-11-24 | 2010-11-24 | Sealing ring of hydraulic cylinder piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020622221XU CN201884658U (en) | 2010-11-24 | 2010-11-24 | Sealing ring of hydraulic cylinder piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884658U true CN201884658U (en) | 2011-06-29 |
Family
ID=44182199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020622221XU Expired - Fee Related CN201884658U (en) | 2010-11-24 | 2010-11-24 | Sealing ring of hydraulic cylinder piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201884658U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422844A (en) * | 2015-12-15 | 2016-03-23 | 苏州国泰科技发展有限公司 | Piston sealing ring |
-
2010
- 2010-11-24 CN CN201020622221XU patent/CN201884658U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422844A (en) * | 2015-12-15 | 2016-03-23 | 苏州国泰科技发展有限公司 | Piston sealing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20121124 |