CN203051296U - Hydraulic cylinder - Google Patents
Hydraulic cylinder Download PDFInfo
- Publication number
- CN203051296U CN203051296U CN 201320041136 CN201320041136U CN203051296U CN 203051296 U CN203051296 U CN 203051296U CN 201320041136 CN201320041136 CN 201320041136 CN 201320041136 U CN201320041136 U CN 201320041136U CN 203051296 U CN203051296 U CN 203051296U
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- China
- Prior art keywords
- piston
- hydraulic cylinder
- utility
- model
- nitrile rubber
- 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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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a hydraulic cylinder and relates to the field of hydraulic systems. The hydraulic cylinder comprises a cylinder body, a combined sealing piece, a piston rod and a piston, wherein the cylinder body is matched with the piston through the combined sealing piece, the piston is matched with the piston rod, the combined sealing piece is an O-shaped sealing ring and comprises a bronze filling teflon outer ring and a nitrile rubber inner ring, and the bronze filling teflon outer ring is connected on the outer side of the nitrile rubber inner ring in a sleeved mode. The hydraulic cylinder is simple in structure and good in sealing effect, and achieves zero leakage, and service life of the oil cylinder is largely prolonged.
Description
Technical field
The utility model relates to the hydraulic system field, be specifically related to a kind of oil hydraulic cylinder.
Background technique
Oil hydraulic cylinder with hydraulic pressure can change mechanical energy into, the do straight reciprocating motion hydraulic actuator of (or oscillating motion).Its simple in structure, reliable operation.When realizing to-and-fro motion with it, can remove speed reducer from, and not have drive gap, therefore motion steadily is used widely in the hydraulic system of various machineries.But there is the problem of poor sealing in use in oil hydraulic cylinder on the market at present, greatly reduces the working life of oil cylinder because sealing effect is bad, has reduced its working efficiency.
The model utility content
At the deficiency that exists on the prior art, the utility model purpose is to be to provide a kind of oil hydraulic cylinder, and is simple in structure, and good sealing effect has been realized not having and leaked, and has prolonged the working life of oil cylinder greatly.
To achieve these goals, the utility model is to realize by the following technical solutions: oil hydraulic cylinder, comprise cylinder body, combination seal, piston rod and piston, and cylinder body matches with piston by combination seal, and piston matches with piston rod.
As preferably, described combination seal is 0 RunddichtringO.
As preferably, described combination seal comprises bronze filler polytetrafluoroethylene outer ring and nitrile rubber inner ring, and bronze filler polytetrafluoroethylene outer ring is socketed in nitrile rubber inner ring outside.
The utility model is simple in structure, and good sealing effect has been realized not having and leaked, and has prolonged the working life of oil cylinder greatly.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the combination seal in the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
With reference to Fig. 1-2, this embodiment by the following technical solutions: oil hydraulic cylinder, comprise cylinder body 1, combination seal 2, piston rod 3 and piston 4, cylinder body 1 matches with piston 4 by combination seal 2, piston 4 matches with piston rod 3.
It should be noted that described combination seal 2 is 0 RunddichtringO.
In addition, described combination seal 2 comprises bronze filler polytetrafluoroethylene outer ring 21 and nitrile rubber inner ring 22, and bronze filler polytetrafluoroethylene outer ring 21 is socketed in nitrile rubber inner ring 22 outsides.
This embodiment applies the sealing pretightening force because continuous bronze filler Teflon ring has the homogeneous inner ring of nitrile rubber, and the high capacity piston assembly can be realized not having and leak.Nitrile rubber provides enough initial radial power to eliminate low-pressure leak, under higher pressure, seals following pressurized, thereby is that kinetic energy is self-packing as cast-iron piston ring, so this sealing structure is respond well.
This embodiment is simple in structure, and good sealing effect has been realized not having and leaked, and has prolonged the working life of oil cylinder greatly.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. oil hydraulic cylinder is characterized in that, oil hydraulic cylinder comprises cylinder body (1), combination seal (2), piston rod (3) and piston (4), and cylinder body (1) matches with piston (4) by combination seal (2), and piston (4) matches with piston rod (3).
2. oil hydraulic cylinder according to claim 1 is characterized in that, described combination seal (2) is the O RunddichtringO.
3. oil hydraulic cylinder according to claim 1 is characterized in that, described combination seal (2) comprises bronze filler polytetrafluoroethylene outer ring (21) and nitrile rubber inner ring (22), and bronze filler polytetrafluoroethylene outer ring (21) is socketed in nitrile rubber inner ring (22) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320041136 CN203051296U (en) | 2013-01-25 | 2013-01-25 | Hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320041136 CN203051296U (en) | 2013-01-25 | 2013-01-25 | Hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051296U true CN203051296U (en) | 2013-07-10 |
Family
ID=48734254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320041136 Expired - Fee Related CN203051296U (en) | 2013-01-25 | 2013-01-25 | Hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051296U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106674649A (en) * | 2016-12-16 | 2017-05-17 | 池州市旭豪机械有限公司 | Hydraulic cylinder piston rod sealing material |
-
2013
- 2013-01-25 CN CN 201320041136 patent/CN203051296U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106674649A (en) * | 2016-12-16 | 2017-05-17 | 池州市旭豪机械有限公司 | Hydraulic cylinder piston rod sealing material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20160125 |
|
| EXPY | Termination of patent right or utility model |