CN201547239U - Oil cylinder rod sealing device - Google Patents
Oil cylinder rod sealing device Download PDFInfo
- Publication number
- CN201547239U CN201547239U CN2009202544160U CN200920254416U CN201547239U CN 201547239 U CN201547239 U CN 201547239U CN 2009202544160 U CN2009202544160 U CN 2009202544160U CN 200920254416 U CN200920254416 U CN 200920254416U CN 201547239 U CN201547239 U CN 201547239U
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- sealing flange
- flange
- seal
- cylinder rod
- cylinder head
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- Expired - Lifetime
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Abstract
The utility model relates to an oil cylinder rod sealing device, which comprises a cylinder head sealing groove arranged in an inner hole at the right end of the cylinder head of the oil cylinder, a left combined seal embedded in the sealing groove of the cylinder head, an inner sealing flange and an outer sealing flange fixed at the right end of the cylinder head, an inner sealing flange sealing groove arranged at the right end of an inner hole of the inner sealing flange, a right combined seal embedded in the inner sealing flange sealing groove, a left and a right annular grooves arranged at the left and right ends of an inner hole of the outer sealing flange, a support belt and a dustproof ring respectively embedded in the left and right annular grooves, wherein an oil cylinder rod passes through the cylinder head, the left combined seal, the inner sealing flange, the right combined seal, the outer sealing flange, the support belt and the dustproof ring, so as to be in clearance fit with the cylinder head, the inner sealing flange and the outer sealing flange, while the oil cylinder rod is in close fit with the left combined seal, the right combined seal, the support belt and the dustproof ring, thereby not only ensuring sealing but also extending and retracting the oil cylinder rod. The utility model has the advantages of simple structure, good sealing effects and online replaceability.
Description
Technical field
The utility model relates to a kind of cylinder rod seal arrangement.
Background technique
Along with the development of the modernization of industry, automation, the service condition of equipment is harsh day by day, and applying working condition is more and more harsher, and sealing system has been brought very big problem.Owing to the raising of centrifuge rhythm of production, constantly reduce the working life of centrifuge master cylinder now.General centrifuge was newly installed the working life of master cylinder about 1 year.The centrifuge master cylinder uses the main failure forms of middle and later periods, is seal failure.Because the inefficacy of sealing causes driving medium to become traditional thread binding spilling from piston rod.And pull down oil cylinder and could change rod seal, not only waste time and energy, and have a strong impact on production.
Summary of the invention
In order to overcome the shortcoming of prior art, the utility model provides a kind of cylinder rod seal arrangement, and it is simple in structure, good sealing effect, and can onlinely change.
The technical scheme in the invention for solving the technical problem is: in the cylinder head right-hand member endoporus of oil cylinder the cylinder end seal groove is arranged, be embedded with left combination seal in the cylinder end seal groove, sealing flange and external sealed flange in the cylinder head right-hand member is fixing, the right-hand member of interior sealing flange endoporus has interior sealing flange seal groove, be embedded with right combination seal in the interior sealing flange seal groove, the left side of external sealed flange endoporus, there is a left side at right two ends, right annular groove, a left side, be embedded with supporting band and dust ring respectively in the right annular groove, cylinder rod passes described cylinder head, left side combination seal, interior sealing flange, right combination seal, the external sealed flange, supporting band and dust ring, cylinder rod and cylinder head, interior sealing flange and external sealed flange Spielpassung, cylinder rod and left combination seal, right combination seal, supporting band and dust ring drive fit, both guarantee sealing, and can realize the flexible of cylinder rod again.
The gas pressure relief slot of annular is arranged on the endoporus of sealing flange in described, and gas pressure relief slot communicates with fuel tank by relief tube.
The utlity model has following advantage: 1, simple and practical, flexibly, convenient; 2, the input expense is few, and rate of fault is low, and the life-span is long, and installation and maintenance are easy and convenient, has value for applications preferably; 3, solved mill type cylinder because of the necessary problem of changing oil cylinder of seal failure; 4, good sealing effect can onlinely be changed, and is time saving and energy saving; 5, reduced miantainers' labor intensity.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is the utility model partial sectional view.
Embodiment
As shown in drawings, in the cylinder head 9 right-hand member endoporus of oil cylinder the cylinder end seal groove is arranged, be embedded with left combination seal 1 in the cylinder end seal groove, cylinder head 9 right-hand members are by bolt 10 fixing interior sealing flange 4 and external sealed flanges 5.The right-hand member of interior sealing flange 4 endoporus has interior sealing flange seal groove, is embedded with right combination seal 3 in the interior sealing flange seal groove.There is left and right annular groove at the left and right two ends of external sealed flange 5 endoporus, are embedded with supporting band 6 and dust ring 7 in the left and right annular groove respectively.Cylinder rod 8 passes described cylinder head 9, left combination seal 1, interior sealing flange 4, right combination seal 3, external sealed flange 5, supporting band 6 and dust ring 7.Cylinder rod 8 and cylinder head 9, interior sealing flange 4 and external sealed flange 5 Spielpassung.Cylinder rod 8 and left combination seal 1, right combination seal 3, supporting band 6 and dust ring 7 drive fits had both guaranteed sealing, can realize the flexible of cylinder rod 8 again.
The gas pressure relief slot 2 of annular is arranged on the endoporus of sealing flange 4 in described, and gas pressure relief slot 2 communicates with fuel tank by relief tube 11.
When needing to change cylinder rod 8 sealings, at first unload bolt 10, interior sealing flange 4 and external sealed flange 5 are pulled down from oil cylinder cylinder head 9, change left and right combination seal 1,3, supporting band 6 and dust ring 7.If left and right combination seal 1,3 is an open type, opening 45 degree that stagger mutually are to guarantee the sealability of oil cylinder.Interior sealing flange 4 and external sealed flange 5 are installed on the oil cylinder cylinder head 9, with bolt 10 fixing getting final product.
Claims (2)
1. cylinder rod seal arrangement, it is characterized in that: in the cylinder head of oil cylinder (9) the right-hand member endoporus cylinder end seal groove is arranged, be embedded with left combination seal (1) in the cylinder end seal groove, sealing flange (4) and external sealed flange (5) in cylinder head (9) right-hand member is fixing, the right-hand member of interior sealing flange (4) endoporus has interior sealing flange seal groove, be embedded with right combination seal (3) in the interior sealing flange seal groove, the left side of external sealed flange (5) endoporus, there is a left side at right two ends, right annular groove, a left side, be embedded with supporting band (6) and dust ring (7) respectively in the right annular groove, cylinder rod (8) passes described cylinder head (9), left side combination seal (1), interior sealing flange (4), right combination seal (3), external sealed flange (5), supporting band (6) and dust ring (7), cylinder rod (8) and cylinder head (9), interior sealing flange (4) and external sealed flange (5) Spielpassung, cylinder rod (8) and left combination seal (1), right combination seal (3), supporting band (6) and dust ring (7) drive fit, both guarantee sealing, and can realize the flexible of cylinder rod (8) again.
2. cylinder rod seal arrangement according to claim 1 is characterized in that: the gas pressure relief slot (2) of annular is arranged on the endoporus of sealing flange (4) in described, and gas pressure relief slot (2) communicates with fuel tank by relief tube (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202544160U CN201547239U (en) | 2009-11-06 | 2009-11-06 | Oil cylinder rod sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202544160U CN201547239U (en) | 2009-11-06 | 2009-11-06 | Oil cylinder rod sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547239U true CN201547239U (en) | 2010-08-11 |
Family
ID=42602412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202544160U Expired - Lifetime CN201547239U (en) | 2009-11-06 | 2009-11-06 | Oil cylinder rod sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547239U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777655A (en) * | 2012-07-13 | 2012-11-14 | 北京天地玛珂电液控制系统有限公司 | Sealed unloading groove between valve body and valve joint plate |
| CN102784503A (en) * | 2012-08-08 | 2012-11-21 | 北京天地玛珂电液控制系统有限公司 | High-pressure filtering station |
| CN104443862A (en) * | 2013-09-18 | 2015-03-25 | 四川宏华石油设备有限公司 | Water inlet and outlet structure of flexible water tank |
| CN108612848A (en) * | 2018-06-06 | 2018-10-02 | 新兴铸管股份有限公司 | A kind of lime preheater push rod seal structure |
| CN113090607A (en) * | 2021-03-18 | 2021-07-09 | 湖南联诚轨道装备有限公司 | High-pressure hydraulic oil cylinder and method for prolonging sealing life of high-pressure hydraulic oil cylinder |
-
2009
- 2009-11-06 CN CN2009202544160U patent/CN201547239U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777655A (en) * | 2012-07-13 | 2012-11-14 | 北京天地玛珂电液控制系统有限公司 | Sealed unloading groove between valve body and valve joint plate |
| CN102777655B (en) * | 2012-07-13 | 2014-06-11 | 北京天地玛珂电液控制系统有限公司 | Sealed unloading groove between valve body and valve joint plate |
| CN102784503A (en) * | 2012-08-08 | 2012-11-21 | 北京天地玛珂电液控制系统有限公司 | High-pressure filtering station |
| CN102784503B (en) * | 2012-08-08 | 2014-12-10 | 北京天地玛珂电液控制系统有限公司 | High-pressure filtering station |
| CN104443862A (en) * | 2013-09-18 | 2015-03-25 | 四川宏华石油设备有限公司 | Water inlet and outlet structure of flexible water tank |
| CN108612848A (en) * | 2018-06-06 | 2018-10-02 | 新兴铸管股份有限公司 | A kind of lime preheater push rod seal structure |
| CN113090607A (en) * | 2021-03-18 | 2021-07-09 | 湖南联诚轨道装备有限公司 | High-pressure hydraulic oil cylinder and method for prolonging sealing life of high-pressure hydraulic oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hebei Xinxing Ductile Iron Pipes Co.,Ltd. Assignor: Xinxing Ductile Iron Pipes Co., Ltd. Contract record no.: 2012130000095 Denomination of utility model: Oil cylinder rod sealing device Granted publication date: 20100811 License type: Exclusive License Record date: 20120525 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |