CN202418579U - Steam hammer piston sealing structure - Google Patents
Steam hammer piston sealing structure Download PDFInfo
- Publication number
- CN202418579U CN202418579U CN2011204786068U CN201120478606U CN202418579U CN 202418579 U CN202418579 U CN 202418579U CN 2011204786068 U CN2011204786068 U CN 2011204786068U CN 201120478606 U CN201120478606 U CN 201120478606U CN 202418579 U CN202418579 U CN 202418579U
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- CN
- China
- Prior art keywords
- piston
- sealing
- sealing structure
- hammer
- groove
- 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 steam hammer piston sealing structure, which comprises a cylinder sleeve and a hammer rod, wherein the end part of the hammer rod is fixedly provided with a piston, the left end surface and the right end surface of the piston are respectively provided with an air hole, the side wall of the piston is provided with a plurality of sealing grooves, the air holes are communicated with the bottoms of the sealing grooves respectively through a semicircular ring groove, a sealing ring is installed inside each sealing groove, and the sealing ring is made of a polytetrafluoroethylene material. The steam hammer piston sealing structure can work for a long time under the condition of no oil lubrication and has good sealing performance.
Description
Technical field
The utility model relates to a kind of steam hammer piston sealing structure.
Background technique
Three tons of steam hammers of open side type are mainly used in and forge the flange blank, and piston ring is the important Sealing of steam hammer, and former design piston ring material is HT200, because the metal ring manufacturing process is complicated, the process-cycle is long.Especially metal ring is after heat treatment process, and surface hardness is higher, to the inboard wall of cylinder liner serious wear; Use inboard wall of cylinder liner to be dolioform through the long period; Diameter error reaches more than the 3mm, so using one to two overhaul after date perhaps to inlay the cover repairing again by the boring cylinder, workload is big; Dead time is long, and capital is many.
The model utility content
The utility model provides the steam hammer piston sealing structure of long-term work under a kind of oil-free lubrication situation, good airproof performance.
The utility model technical solution problem provides following scheme:
A kind of steam hammer piston sealing structure; Comprise cylinder sleeve, hammer stem, the end of said hammer stem is installed with piston, it is characterized in that: have pore on the left and right both ends of the surface of said piston; Have multiple-sealed groove on the sidewall of said piston; Said pore with at the bottom of the seal groove between communicate through semicircle annular groove, in the said seal groove seal ring is installed, said seal ring adopts the teflon material.
The opening of said seal ring is straight mouthful, and to stagger respectively be 120 ° to the aperture position of three F4 rings during assembling.
The seal ring of the utility model is when initial the use, and the part material of polytetrafluoroethylene ring is by the wearing and tearing of the cutter trade of cylinder sleeve, and the material that gets off that is worn is transferred to inner surface of cylinder liner, and formation " slippage " gathers four in inner surface of cylinder liner formation and gathers the fluorine ethylene film.The formation of this film is improved the matching performance of piston ring and this a pair of friction pair of cylinder sleeve greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Referring to accompanying drawing, a kind of steam hammer piston sealing structure comprises cylinder sleeve 1, hammer stem 2; The end of said hammer stem 2 is installed with piston 3; Have pore 4 on the left and right both ends of the surface of said piston 3, have multiple-sealed groove 5 on the sidewall of said piston 3, said pore 4 communicates through semicircle annular groove 6 with seal groove at 5 the end; In the said seal groove 5 seal ring 7 is installed; Said seal ring 7 adopts the teflon materials, and the opening of said seal ring 7 be straight mouthful, and it is 120 ° that the aperture position that three F4 encircle during assembling staggers respectively.
Claims (2)
1. steam hammer piston sealing structure; Comprise cylinder sleeve, hammer stem, the end of said hammer stem is installed with piston, it is characterized in that: have pore on the left and right both ends of the surface of said piston; Have multiple-sealed groove on the sidewall of said piston; Said pore with at the bottom of the seal groove between communicate through semicircle annular groove, in the said seal groove seal ring is installed, said seal ring adopts the teflon material.
2. according to the said steam hammer piston sealing structure of claim 1, it is characterized in that: the opening of said seal ring is straight mouthful, and to stagger respectively be 120 ° to the aperture position of three F4 rings during assembling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204786068U CN202418579U (en) | 2011-11-25 | 2011-11-25 | Steam hammer piston sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204786068U CN202418579U (en) | 2011-11-25 | 2011-11-25 | Steam hammer piston sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418579U true CN202418579U (en) | 2012-09-05 |
Family
ID=46743349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204786068U Expired - Fee Related CN202418579U (en) | 2011-11-25 | 2011-11-25 | Steam hammer piston sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982395A (en) * | 2014-04-25 | 2014-08-13 | 珠海辉钰医疗科技有限公司 | Oxygen booster |
-
2011
- 2011-11-25 CN CN2011204786068U patent/CN202418579U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982395A (en) * | 2014-04-25 | 2014-08-13 | 珠海辉钰医疗科技有限公司 | Oxygen booster |
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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: 20120905 Termination date: 20121125 |