CN201884659U - Sealing ring for piston rod of hydraulic cylinder - Google Patents
Sealing ring for piston rod of hydraulic cylinder Download PDFInfo
- Publication number
- CN201884659U CN201884659U CN2010206222258U CN201020622225U CN201884659U CN 201884659 U CN201884659 U CN 201884659U CN 2010206222258 U CN2010206222258 U CN 2010206222258U CN 201020622225 U CN201020622225 U CN 201020622225U CN 201884659 U CN201884659 U CN 201884659U
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing ring
- hydraulic cylinder
- polyurethane
- 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
Links
Images
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
- Actuator (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a sealing part, in particular to a sealing ring for a piston rod of a hydraulic cylinder, which comprises a polyurethane sealing ring, a PTFE (polytetrafluoroethylene) support ring, and a retainer ring. The PTFE support ring combined with the polyurethane sealing ring is disposed on the inner side of the polyurethane sealing ring, the retainer ring combined with the polyurethane sealing ring is disposed at the bottom of the polyurethane sealing ring, two lips are arranged on the inner side of the polyurethane sealing ring, the PTFE support ring is disposed between the two lips on the inner side of the polyurethane sealing ring, and a boss is arranged on the PTFE support ring. The sealing ring for the piston of the hydraulic cylinder is in a combination structure of the PTFE support ring with the polyurethane sealing ring and the retainer ring, so that the sealing ring is wide in application range, small in part quantity, simple in structure, low in cost, fine in sealing effect and fine in elastic resilience, compressive deformation and oil resistance, and can meet needs of actual situations.
Description
Technical field
The utility model relates to a kind of Sealing, especially a kind of hydraulic cylinder piston rod seal ring.
Background technique
The initial sealing of the rod seal of oil hydraulic cylinder all is by seal ring distortion extrusion piston bar at present, thereby finish sealing function, size and surface requirements to piston rod is all very high like this, and along with the continuous wearing and tearing of seal ring and the creep of sealing material reach aging, positive pressure between piston rod and the seal ring will reduce gradually, make the effect of initial sealing weaken gradually, finally cause seal failure, need a kind of Applicable scope extensive for this reason, number of spare parts is few, and is simple in structure, with low cost, the hydraulic cylinder piston rod seal ring of good sealing effect satisfies the needs of actual conditions with this.
The model utility content
A kind of hydraulic cylinder piston rod seal ring of the present utility model, by adopting the composite structure of PTFE bracing ring and polyurethane seal ring and back-up ring, it is extensive to make it have Applicable scope, number of spare parts is few, simple in structure, with low cost, the characteristics of good sealing effect, and have good rebound elasticity, press 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 rod seal ring, it is characterized in that: comprise the polyurethane seal ring and be arranged on the inboard and combined with it PTFE bracing ring that plays the support lubrication of polyurethane seal ring, and be arranged on polyurethane seal ring bottom and the combined with it back-up ring that plays the support guide effect; The inboard of polyurethane seal ring is provided with two lips, and its inboard two lips play the effect of static seal in the bottom of groove, and the PTFE bracing ring is arranged between two lips of inboard of polyurethane seal ring; The PTFE bracing ring that the material that adopts PTFE powder and bronze to mix is made is provided with boss, thereby the lip of upside is played support, rebound effect.
Described hydraulic cylinder piston rod seal ring, back-up ring adopt the POM material to make.
A kind of hydraulic cylinder piston rod seal ring of the present utility model, by adopting the composite structure of PTFE bracing ring and polyurethane seal ring and back-up ring, it is extensive to make it have Applicable scope, number of spare parts is few, simple in structure, with low cost, the characteristics of good sealing effect, and have good rebound elasticity, press 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 rod seal ring of the utility model;
Fig. 2 is a kind of hydraulic cylinder piston rod backup ring of the utility model structural representation;
Fig. 3 is a kind of hydraulic cylinder piston rod seal ring of the utility model PTFE bracing ring structural representation;
Fig. 4 is a kind of hydraulic cylinder piston rod seal ring of the utility model polyurethane ring structure schematic representation.
Wherein, 1 is back-up ring, and 2 is the PTFE bracing ring, and 3 is the polyurethane seal ring.
Embodiment
Embodiment
As shown in Figures 1 to 4, a kind of hydraulic cylinder piston rod seal ring, it is characterized in that: comprise polyurethane seal ring 3 and be arranged on polyurethane seal ring 3 inboards and the combined with it PTFE bracing ring 2 that plays the support lubrication, and be arranged on polyurethane seal ring 3 bottoms and the combined with it back-up ring that plays the support guide effect 1; The inboard of polyurethane seal ring 3 is provided with two lips, and its inboard two lips play the effect of static seal in the bottom of groove, and PTFE bracing ring 2 is arranged between two lips of inboard of polyurethane seal ring 3; The PTFE bracing ring 2 that the material that adopts PTFE powder and bronze to mix is made is provided with boss, thereby the lip of upside is played support, rebound effect; Back-up ring 1 adopts the POM material to make.
A kind of hydraulic cylinder piston rod seal ring of the present utility model, by adopting the composite structure of PTFE bracing ring and polyurethane seal ring and back-up ring, it is extensive to make it have Applicable scope, number of spare parts is few, simple in structure, with low cost, the characteristics of good sealing effect, and have good rebound elasticity, press 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. hydraulic cylinder piston rod seal ring, it is characterized in that: comprise polyurethane seal ring (3) and be arranged on the inboard and combined with it PTFE bracing ring (2) of polyurethane seal ring (3), and be arranged on polyurethane seal ring (3) bottom and combined with it back-up ring (1); The inboard of polyurethane seal ring (3) is provided with two lips, and PTFE bracing ring (2) is arranged between two lips of inboard of polyurethane seal ring (3); PTFE bracing ring (2) is provided with boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206222258U CN201884659U (en) | 2010-11-24 | 2010-11-24 | Sealing ring for piston rod of hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206222258U CN201884659U (en) | 2010-11-24 | 2010-11-24 | Sealing ring for piston rod of hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884659U true CN201884659U (en) | 2011-06-29 |
Family
ID=44182200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206222258U Expired - Fee Related CN201884659U (en) | 2010-11-24 | 2010-11-24 | Sealing ring for piston rod of hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201884659U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387765A (en) * | 2017-08-25 | 2017-11-24 | 利辛县宝隆橡塑密封件有限责任公司 | A kind of hydraulic cylinder sealing ring |
-
2010
- 2010-11-24 CN CN2010206222258U patent/CN201884659U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387765A (en) * | 2017-08-25 | 2017-11-24 | 利辛县宝隆橡塑密封件有限责任公司 | A kind of hydraulic cylinder sealing ring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102588482A (en) | Moderate transition method for variable stiffness of composite rubber stopping block and composite rubber stopping block | |
| CN201627923U (en) | Elastic compensating type Y-shaped combined sealing ring | |
| CN201884659U (en) | Sealing ring for piston rod of hydraulic cylinder | |
| CN201401510Y (en) | Flexible lip-shaped sealing ring | |
| CN201810772U (en) | Piston seal for toothed sealing surface of rectangular support ring | |
| CN201884658U (en) | Sealing ring of hydraulic cylinder piston | |
| CN202946677U (en) | Novel combination piston seal | |
| CN204025691U (en) | Seal arrangement between the two articles that a kind of work does relatively reciprocating motion | |
| CN101713423B (en) | Hydraulic oil cylinder | |
| CN204610427U (en) | The piston rod cushion seal circle of Novel hydraulic cylinder | |
| CN201621127U (en) | Hydrocylinder | |
| CN201795047U (en) | High-pressure resistant composite drum-type sealing ring | |
| CN201747930U (en) | Oil seal suitable for working condition with large movable eccentricity | |
| CN201851663U (en) | High-speed oil seal with combined rubber | |
| CN204239794U (en) | A kind of combined sealing configuration of ball valve | |
| CN204025507U (en) | Hydro-pneumatic spring sealing configuration | |
| CN202851965U (en) | Novel sealing ring | |
| CN201521650U (en) | Two-way movement combined type piston sealing piece | |
| CN206159479U (en) | Two hollow bourdon type retarber oil blankets | |
| CN101701627A (en) | T-shaped anti-friction rubber and plastic compound piston | |
| CN201810773U (en) | Piston seal element of arc-shaped seal surface of rectangular supporting ring | |
| CN201165969Y (en) | PG pump hydraulic end leakage-free packer | |
| CN201747932U (en) | Two-way back flow PTFE lip oil seal | |
| CN201496604U (en) | Composite sealing ball valve | |
| CN201412501Y (en) | T-shaped rubber-plastic compound piston with antifriction function |
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 |