CN2246733Y - High-pressure reciprocating motion oil seal - Google Patents
High-pressure reciprocating motion oil seal Download PDFInfo
- Publication number
- CN2246733Y CN2246733Y CN 96202421 CN96202421U CN2246733Y CN 2246733 Y CN2246733 Y CN 2246733Y CN 96202421 CN96202421 CN 96202421 CN 96202421 U CN96202421 U CN 96202421U CN 2246733 Y CN2246733 Y CN 2246733Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- oil seal
- ring
- oil cylinder
- 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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- Sealing Devices (AREA)
Abstract
The utility model relates to a high-pressure reciprocating motion oil seal, comprising a plunger piston which is arranged in an oil cylinder, a support ring which arranged in the head of the oil cylinder, a sealing ring and a housing pin. The utility model is characterized in that a pressure ring which is made by filling with MC nylon material is arranged between the sealing ring and the housing pin; the pressure ring is in transition fit with the oil cylinder. The utility model is characterized in that the stressed condition of the original oil seal is improved, and the oil seal can not be influenced by shearing force. The structure of the oil seal is a significant improvement to the existing oil seal. The utility model has the advantages of high rigidity, no interstice, good sealing performance, long service life, high reliability, etc. The utility model can be widely used for the seal of two relative sliding surfaces, and is particularly suitable for being used under high pressure or middle high pressure.
Description
The utility model relates to a kind of high pressure to-and-fro motion oil sealing.
Usually in the sealing on two slide relative surfaces that contact with each other or separated by narrow slit, generally all adopt cup packing.Adopt the seal arrangement of this gum structure, can not adapt under high pressure conditions and use.In addition, have the gap between two parts of motion mutually, oil sealing is under the effect of shearing force, and Sealing very easily lost efficacy, thereby caused oil seal failure, caused leakage of oil.
The purpose of this utility model solves the existing in prior technology problem with regard to being, a kind of good rigidly is provided, no gap, good seal performance, long service life, the high pressure to-and-fro motion oil sealing that reliability is high.
The purpose of this utility model realizes by following measure.High pressure to-and-fro motion oil sealing, comprise and be contained in in-oil cylinder plunger, and the supporting ring, seal ring and the housing pin that are contained in the oil cylinder head, of the present utility model being characterised in that between seal ring and the housing pin is equipped with bearing ring, all adopts transition fit between bearing ring and plunger and the oil cylinder.This bearing ring is made by filling the MC nylon material.
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing is the utility model structural representation.
Among the figure: 1, plunger 2, oil cylinder 3, supporting ring 4, seal ring 5, bearing ring 6, housing pin
As shown in drawings, plunger 1 is contained in the oil cylinder 2, and the head of oil cylinder 2 is equipped with supporting ring 3, seal ring 4 and housing pin 6, between seal ring 4 and the housing pin 6 bearing ring 5 is housed, and all adopts transition fit between bearing ring 5 and plunger 1 and the oil cylinder 2.This bearing ring 5 is made by filling the MC nylon material.
The characteristics of the utility model maximum are the force-bearing situations that has improved original oil sealing, have avoided Oil sealing is subjected to the impact of shearing force. Therefore, this oil enveloping structure is that to existing oil sealing one is great Improve. Have good rigidly, gapless, good seal performance, long service life, reliability height Etc. advantage, can be widely used in the sealing on two relative sliding surfaces, be specially adapted to high pressure or Use under the mesohigh.
Claims (2)
1, a kind of high pressure to-and-fro motion oil sealing comprises being contained in in-oil cylinder plunger, and the supporting ring, seal ring and the housing pin that are contained in the oil cylinder head, it is characterized in that between seal ring and the housing pin bearing ring being housed, all adopt transition fit between bearing ring and plunger and the oil cylinder.
2, oil sealing according to claim 1 is characterized in that described bearing ring makes by filling the MC nylon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96202421 CN2246733Y (en) | 1996-01-15 | 1996-01-15 | High-pressure reciprocating motion oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96202421 CN2246733Y (en) | 1996-01-15 | 1996-01-15 | High-pressure reciprocating motion oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2246733Y true CN2246733Y (en) | 1997-02-05 |
Family
ID=33888379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96202421 Expired - Fee Related CN2246733Y (en) | 1996-01-15 | 1996-01-15 | High-pressure reciprocating motion oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2246733Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936392A (en) * | 2010-08-20 | 2011-01-05 | 张家港市广大机械锻造有限公司 | Sealing device for cylinder plunger |
-
1996
- 1996-01-15 CN CN 96202421 patent/CN2246733Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936392A (en) * | 2010-08-20 | 2011-01-05 | 张家港市广大机械锻造有限公司 | Sealing device for cylinder plunger |
| CN101936392B (en) * | 2010-08-20 | 2012-06-27 | 张家港市广大机械锻造有限公司 | Sealing device for cylinder plunger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |