CN205780529U - A kind of sealing structure of oil-pressure damper - Google Patents
A kind of sealing structure of oil-pressure damper Download PDFInfo
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- CN205780529U CN205780529U CN201620490831.6U CN201620490831U CN205780529U CN 205780529 U CN205780529 U CN 205780529U CN 201620490831 U CN201620490831 U CN 201620490831U CN 205780529 U CN205780529 U CN 205780529U
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- seal
- oil
- piston rod
- gasket
- guide cover
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Abstract
The utility model discloses the sealing structure of a kind of oil-pressure damper, including piston rod, dust ring, seal screw cap, seal gasket, bar oil seal, guide cover, seal screw cap, gasket seal, seal gasket, gasket seal, guide cover is sequentially connected with and is arranged on piston rod, piston rod is provided with dust ring in seal screw cap side, it is provided with sealing O outside guide cover to fix, valve opening it is provided with in guide cover, spill port, bar oil seal, Si Te seals, it is provided with small oil cavity between bar oil seal and Si Te envelope, Si Te envelope side is provided with the guide ring being surrounded on piston rod, this utility model can be steady in a long-term keep the best good sealing property, improve the stability of oil-pressure damper, reliability, maintainability, improve the cost performance of product.
Description
Technical field
This utility model relates to the sealing structure of a kind of oil-pressure damper.
Background technology
Along with the raising of the transit equipment speed per hours such as rail vehicles, more and more higher to its antidetonation component requirements.Oil-pressure damper is the element providing damping in rolling stock suspension, and it can be decayed the various forms of vibrations that various factors causes, and the safety running rolling stock and the comfortableness of driving have important impact.Because rolling stock self structure is huge and active force between its wheel track complicated, therefore require that oil-pressure damper can provide suitable damping force and require that damping capacity is reliable and stable.And existing damper leakage phenomenon is universal, damping force is produced by orifice valve in being dependent on fluid cavity in a sealed meter environment because of vibroshock, once fluid leaks, its damping characteristic can change greatly, vibroshock performance depreciation was even lost efficacy, vibroshock does not once provide suitable damping force, and various between whole suspension and wheel track etc. have destructive active force and accumulate in together so that rolling stock riding quality drastically deteriorates.
Utility model content
The purpose of this utility model is to provide the sealing structure of a kind of oil-pressure damper.
The technical solution adopted in the utility model is:
A kind of sealing structure of oil-pressure damper, including piston rod, dust ring, seal screw cap, seal gasket, bar oil seal, guide cover, described seal screw cap, gasket seal, seal gasket, gasket seal, guide cover is sequentially connected with and is arranged on piston rod, described piston rod is provided with dust ring in seal screw cap side, it is provided with sealing O outside described guide cover to fix, it is provided with valve opening in described guide cover, spill port, bar oil seal, Si Te seals, it is provided with small oil cavity between described bar oil seal and Si Te envelope, this special envelope side described is provided with the guide ring being surrounded on piston rod.
Advantage of the present utility model: the best sealing property is got well in holding that can be steady in a long-term, improves the stability of oil-pressure damper, reliability, maintainability, improves the cost performance of product.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Wherein: 1, dust ring；2, seal screw cap；3, gasket seal；4, seal gasket；5, bar oil seal；6, O is sealed；7, spill port；8, this special envelope；9, guide ring；10, valve opening；11, guide cover；12, piston rod；13, small oil cavity.
Detailed description of the invention
nullAs shown in Figure 1，A kind of sealing structure of oil-pressure damper，Including piston rod 12、Dust ring 1、Seal screw cap 2、Seal gasket 3、Bar oil seal 5、Guide cover 11，Seal screw cap 2、Gasket seal 2、Seal gasket 3、Gasket seal 2、Guide cover 11 is sequentially connected with and is arranged on piston rod 12，Seal screw cap 2、Gasket seal 3、Seal gasket 4 forms a set of sealing device，After seal screw cap 2 is applied certain screwing force，Radially extend after seal gasket 4 stress and deformation between two panels gasket seal 3，Because seal gasket 4 is rubber type of material，Its stress can sufficiently fill oil storage cylinder end thread after extending，Thus prevent via sealing the fluid of O 6 leakage from end thread internal leakage，Because there being valve opening 10 on guide cover，Fluid is the most sometimes from valve opening 10 internal leakage，Seal screw cap 2、Gasket seal 3、Seal gasket 4 forms a set of sealing device and seals the fluid leaked out from valve opening，Piston rod 12 is provided with dust ring 1 in seal screw cap 2 side，Dust ring 1 acts the effect of the oil film scraped off on piston rod，After preventing exposed aerial oil film good attachment dust, dust is brought in cylinder interior fluid，The outside sealing O 6 that is provided with of guide cover 11 is fixed，Sealing O 6 prevents fluid from leaking between guide cover 11 side and oil storage cylinder wall，Valve opening 10 it is provided with in guide cover 11、Spill port 7、Bar oil seal 5、Si Te envelope 8，It is provided with small oil cavity 13 between bar oil seal 5 and Si Te envelope 8，Bar oil seal 5、Si Te envelope 8 acts primarily as sealing function，Si Te envelope 8 has good wearability，And bar oil seal 5 can ensure that and seals completely，Seal further via the fluid of this special envelope 8 leakage，Lead in spill port 7 makes the small oil cavity 13 between bar oil seal 5 and Si Te envelope 8 simultaneously and keep low-pressure state，Thus strengthen the sealing property of bar oil seal 5 further and extend its service life，Si Te seals 8 sides and is provided with the guide ring 9 being surrounded on piston rod 12，Guide ring 9 is primarily subjected to the radial force between piston rod 12 and guide cover 11，Prevent guide cover 11 from directly contacting, with piston rod 12 metal covering, the eccentric wear caused or pull and the oil liquid leakage that causes，Piston rod 12 is play the guiding role.
This utility model can be steady in a long-term keep the best good sealing property, improve the stability of oil-pressure damper, reliability, maintainability, improve the cost performance of product.
Claims (1)
1. the sealing structure of an oil-pressure damper, it is characterized in that: include piston rod, dust ring, seal screw cap, seal gasket, bar oil seal, guide cover, described seal screw cap, gasket seal, seal gasket, gasket seal, guide cover is sequentially connected with and is arranged on piston rod, described piston rod is provided with dust ring in seal screw cap side, it is provided with sealing O outside described guide cover to fix, it is provided with valve opening in described guide cover, spill port, bar oil seal, Si Te seals, it is provided with small oil cavity between described bar oil seal and Si Te envelope, this special envelope side described is provided with the guide ring being surrounded on piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620490831.6U CN205780529U (en) | 2016-05-26 | 2016-05-26 | A kind of sealing structure of oil-pressure damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620490831.6U CN205780529U (en) | 2016-05-26 | 2016-05-26 | A kind of sealing structure of oil-pressure damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780529U true CN205780529U (en) | 2016-12-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620490831.6U Active CN205780529U (en) | 2016-05-26 | 2016-05-26 | A kind of sealing structure of oil-pressure damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780529U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278318A (en) * | 2017-12-30 | 2018-07-13 | 珠海市业成轨道交通设备科技有限公司 | A kind of high speed motor car oil-pressure damper pilot seal component |
| CN111536188A (en) * | 2020-04-30 | 2020-08-14 | 珠海市业成轨道交通设备科技有限公司 | Single-cycle structure oil pressure damper guide cover assembly for world leading high-speed motor train unit |
-
2016
- 2016-05-26 CN CN201620490831.6U patent/CN205780529U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278318A (en) * | 2017-12-30 | 2018-07-13 | 珠海市业成轨道交通设备科技有限公司 | A kind of high speed motor car oil-pressure damper pilot seal component |
| CN111536188A (en) * | 2020-04-30 | 2020-08-14 | 珠海市业成轨道交通设备科技有限公司 | Single-cycle structure oil pressure damper guide cover assembly for world leading high-speed motor train unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 226100 No.165 Zhenzhong Road, Haimen street, Haimen District, Nantong City, Jiangsu Province Patentee after: Nantong tiechi Rail Transit Equipment Co.,Ltd. Address before: 226100 No.165 Zhenzhong Road, Haimen town, Haimen City, Nantong City, Jiangsu Province Patentee before: HAIMEN RAILWAY LOCOMOTIVE VEHICLE PARTS FACTORY Co.,Ltd. |
|
| CP03 | Change of name, title or address |