CN102235399A - Novel structure for hydraulic cylinder - Google Patents
Novel structure for hydraulic cylinder Download PDFInfo
- Publication number
- CN102235399A CN102235399A CN2010101732013A CN201010173201A CN102235399A CN 102235399 A CN102235399 A CN 102235399A CN 2010101732013 A CN2010101732013 A CN 2010101732013A CN 201010173201 A CN201010173201 A CN 201010173201A CN 102235399 A CN102235399 A CN 102235399A
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- China
- Prior art keywords
- seal ring
- hydraulic cylinder
- ring
- piston
- elasticity
- 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.)
- Pending
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention relates to a novel structure for a hydraulic cylinder. In the structure, spiral steel wire rings are sleeved in a piston concave ring groove at intervals; an E-shaped seal ring is bonded in the piston concave ring groove by a bulged circular ring on the inner circular surface of the seal ring; the spiral steel wire rings have a certain elasticity, so the seal ring is pressed towards the hydraulic cylinder wall forcibly under the combined action of the elasticity of the seal ring and the elasticity of the spiral steel wire, so that the abrasion of the seal ring is compensated, and impurities are kept out of the seal ring to prevent the impurities from abrading other parts of the seal ring further. The structure has the advantages of good seal effect and long service life, and is suitable for high-pressure hydraulic systems.
Description
Technical field
The present invention relates to the structure of a kind of structure of oil hydraulic cylinder, particularly a kind of novel hydraulic cylinder, belong to the hydraulic machinery technical field.
Background technique
At present, in the structure of oil hydraulic cylinder, between cylinder body and piston, all be provided with one or multi-channel seal ring is installed, thereby realize the effect of sealing, although existing seal ring shape is not quite similar, but, all be resiliently deformable by seal ring self, seal between realization piston and the cylinder body, As time goes on, seal ring can wear and tear gradually, thereby has reduced the effect of its sealing, especially exists in hydraulic medium under the situation of impurity, the wearing and tearing of seal ring have further been quickened, once this kind situation occurs, then will cause oil hydraulic cylinder to work normally, so, existing oil hydraulic cylinder exists working life shorter, easily the defective of leaking.
Summary of the invention
The objective of the invention is to: a kind of structure of novel hydraulic cylinder is provided, and it is lower existing working life to overcome existing oil hydraulic cylinder, leak easily and brought thus can't proper functioning defective.
The present invention realizes that the technological scheme that above-mentioned purpose adopts is: a kind of structure of novel hydraulic cylinder, it is by cylinder body, the E RunddichtringO, piston, the spiral wire ring, piston rod is formed, it is characterized in that: the inner headed face of described E type seal ring has the annulus of the protrusion more than three roads or three roads, on the periphery of described piston, produce corresponding matrix annular groove on the inner headed face with E type seal ring, in piston matrix annular groove, compartment of terrain suit spiral wire ring, the E RunddichtringO agrees with in piston matrix annular groove being installed together with piston by the annulus of the protrusion on its inner headed face.
Working principle of the present invention is: because the spiral wire ring has certain elasticity, so, elasticity at seal ring self, and under the elasticity acting in conjunction of spiral wire ring, forcibly seal ring is pressed to cylinder wall, wearing and tearing that on the one hand can the compensation sealing ring can prevent that impurity from causing wearing and tearing to other position further with the impurity retaining in the outside of this ring on the other hand.
Beneficial effect: the present invention is because after adopting such scheme, have sealing effect better, the advantage of long service life, effectively overcome existing oil hydraulic cylinder defective short, that leak easily in existing working life.
Description of drawings
Fig. 1 is a structure principle chart of the present invention;
Shown in the figure
1, cylinder body; 2, E RunddichtringO; 3, piston; 4, spiral wire ring; 5, piston rod
Specific implementation method
The structure of oil hydraulic cylinder has the annulus E type seal ring (2) of the protrusion more than one or three roads at inner headed face, correspondingly, on the periphery of piston (3), have one with the inner headed face of E type seal ring on corresponding matrix annular groove, in piston (3) matrix annular groove, compartment of terrain suit spiral wire ring (4), with the annulus of E RunddichtringO (2) by the protrusion on its inner headed face, agree with in piston (3) matrix annular groove, piston rod (5) and piston (3) are installed together, and piston (3) is installed in the endoporus of cylinder body (1) together with piston rod (5) assembly parts.
Claims (2)
1. the structure of a novel hydraulic cylinder is characterized in that: in piston (3) matrix annular groove, and compartment of terrain suit spiral wire ring (4), E RunddichtringO (2) agrees with in piston (3) matrix annular groove by the annulus of the protrusion on its inner headed face;
2. according to the structure of claims 1 described a kind of novel hydraulic cylinder, it is characterized in that: the inner headed face of E type seal ring (2) has the annulus of the above protrusion in three roads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101732013A CN102235399A (en) | 2010-05-05 | 2010-05-05 | Novel structure for hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101732013A CN102235399A (en) | 2010-05-05 | 2010-05-05 | Novel structure for hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102235399A true CN102235399A (en) | 2011-11-09 |
Family
ID=44886371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101732013A Pending CN102235399A (en) | 2010-05-05 | 2010-05-05 | Novel structure for hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102235399A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494133A (en) * | 2011-11-29 | 2012-06-13 | 济南轨道交通装备有限责任公司 | Seal ring |
| CN103453146A (en) * | 2013-09-10 | 2013-12-18 | 昆山市巴城镇顺拓工程机械配件厂 | Piston seal ring |
-
2010
- 2010-05-05 CN CN2010101732013A patent/CN102235399A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494133A (en) * | 2011-11-29 | 2012-06-13 | 济南轨道交通装备有限责任公司 | Seal ring |
| CN102494133B (en) * | 2011-11-29 | 2014-11-26 | 济南轨道交通装备有限责任公司 | Seal ring |
| CN103453146A (en) * | 2013-09-10 | 2013-12-18 | 昆山市巴城镇顺拓工程机械配件厂 | Piston seal ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111109 |