CN203362978U - Anti-interference structure provided with lining and used for preventing leakage of and isolating extended shaft containing cavity of shock absorber through clip - Google Patents
Anti-interference structure provided with lining and used for preventing leakage of and isolating extended shaft containing cavity of shock absorber through clip Download PDFInfo
- Publication number
- CN203362978U CN203362978U CN 201320416008 CN201320416008U CN203362978U CN 203362978 U CN203362978 U CN 203362978U CN 201320416008 CN201320416008 CN 201320416008 CN 201320416008 U CN201320416008 U CN 201320416008U CN 203362978 U CN203362978 U CN 203362978U
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- guide sleeve
- lining
- sealing
- cylinder barrel
- clip
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Abstract
An anti-interference structure provided with a lining and used for preventing leakage of and isolating an extended shaft containing cavity of a shock absorber through a clip is composed of an outer cylinder barrel 1, a working cylinder barrel 2, a piston rod 3, a guide sleeve 4, a sealing element 5, a pressing nut 6, an oil seal 7, the sealing clip 8 and the anti-abrasion lining 9. The structure is characterized in that spherical surface axial positioning is achieved between the guide sleeve 4 and the pressing nut 6, the anti-abrasion lining 9 is arranged in an inner hole of the guide sleeve 4 in a pressed mode, a pressure reducing dirt storage groove is formed in the right end of an inner hole of the anti-abrasion lining 9, the sealing element 5 is arranged on the right edge of the anti-abrasion lining 9, the containing cavity between the oil seal 7 and the guide sleeve 4 is communicated with an oil storage chamber in a unidirectional mode through a small hole in the guide sleeve 4 and through the control of the sealing clip 8, the end portion, close to the outer cylinder barrel 1, of the sealing clip 8 is connected with the guide sleeve 4, the end, close to the working cylinder barrel 2, of the sealing clip 8 is in a moving state, therefore, a small liquid blocking check valve is formed through combination, oil in the containing cavity is guaranteed to be clean, and the service life of the oil seal 7 and the service life of the piston rod 3 are prolonged.
Description
One, technical field:
The present invention relates to a kind of vibration damper band lining and shaft cavity volume shell fragment isolation leakage proof structure of anti-interference.The operation that this structure that prevents the leakage of oil of piston lever of reducer oil sealing especially is adapted to high-speed railway vibration damper for locomotive, also be adapted to the vibration damper of city underground, rail traffic vehicles and various vehicles.
Two, background technique:
In order to improve the run smoothness of bullet train, improve the travelling comfort of taking, China has adopted widely airsuspension system in the suspension system of bullet train.Without lateral rigidity, for the damping that increases the bullet train compartment lateral movement caused due to its inertial mass in service and the lateral rigidity of suspension, be provided with the Horizontal type damping device that level is installed due to pneumatic spring on the structure of its suspension.The Horizontal type damping device that level is installed in use has the usage requirement that is different from vertically arranged vibration damper.
Get up because the high-speed railway of China is fast-developing in recent years, vertical and horizontal these two kinds of vibration dampers are not separated in application, but adopted the vibration damper of same structural type.So, the Horizontal type damping device often occurs in actual use early stage leakage of oil occurs, its damping characteristic descends.
Trace it to its cause two: one, the more vertical vibration damper of the lateral force of Horizontal type damping device more greatly, direction is changeable more, and the wearing and tearing of piston rod and guide sleeve and oil sealing are faster; The 2nd, due to the horizontal installation of vibration damper, second chamber of oil sealing that the fluid of its shoe cream room makes piston rod is invading in bubble in fluid always, the larger impurity of all kinds of particles in fluid, entering with rocking of fluid or being detained in the front portion of oil sealing, has accelerated the wearing and tearing of piston rod and oil sealing.Vertical vibration damper is without above-mentioned operating mode drawback.
Three, summary of the invention:
Purpose of the present invention will be developed a kind of low cost exactly, and simple and reliable train goes out the combination leakage proof structure of axle head with Horizontal type damping device piston rod.
The present invention is anti-vibration damper band lining of interfering and shaft cavity volume shell fragment isolation leakage proof structure, and its structure is combined by outer cylinder 1, work cylinder barrel 2, piston rod 3, guide sleeve 4, Sealing 5, clamping nut 6, oil sealing 7, sealing shell fragment 8 and anti-wear lining 9; It is characterized in that: between guide sleeve 4 and clamping nut 6, be the sphere axially locating; Anti-wear lining 9 is fitted in the endoporus of guide sleeve 4; Right-hand member at anti-wear lining 9 endoporus is provided with a decompression sewage groove, on the right of abrasionproof lining 9, is provided with Sealing 5; Cavity volume between oil sealing 7 and guide sleeve 4 is by being arranged on the aperture on guide sleeve 4, then by control and the accumulator unilaterally connected of sealing shell fragment 8; Sealing shell fragment 8 is connected with the end face of guide sleeve 4 by an end of its outer cylinder barrel 1; Near work cylinder barrel 2 ends, in active state, they have formed a little liquid resistance one-way valve; So just by the cavity volume between oil sealing 7 and guide sleeve 4 and accumulator isolation.
The present invention be directed to the typical structure Transform Type design of existing vibration damper, it is for nothing decompression sewage groove on the guide sleeve of existing vibration damper, and act directly on oil sealing without the leakage between Sealing, piston rod and guide sleeve between guide sleeve and piston rod and easily produce the drawbacks such as movement interference, propose brand-new preposition decompression storage dirty and prevent that the fluid of vibration damper clutch release slave cylinder and accumulator from directly entering cavity volume and anti-interference the between guide sleeve and oil sealing, guaranteed the new structure in oil sealing and piston rod working life.
Structure of the present invention is basic identical with existing product with cost, and installation and Conncetion cimension are constant.
Four, accompanying drawing explanation:
Accompanying drawing 1 is structure principle chart of the present invention.
Five, embodiment:
The specific embodiment of the present invention is:
If vibration damper piston rod when installment and debugging has produced a small amount of interference, because guide sleeve 4 is location at spherical surface with the axially locating of clamping nut 6, add that the bottom valve of work cylinder barrel 2 and the bottom surface of outer cylinder 1 are also the sphere axially locating, can finely tune voluntarily its shaft axis because interfering the Lateral Force produced, reduce interference and the wearing and tearing of guide sleeve 4, anti-wear lining 8 and piston rod 3.
When vibration damper is worked, anti-wear lining 9 has reduced the wearing and tearing of piston rod 3; After the fluid of the gap seepage between piston rod 3 and anti-wear lining 9 flow to the decompression sewage groove, its pressure can reduce greatly, make the pressure reduction of left and right end of Sealing 5 very little, stop or greatly reduced fluid and leak into the cavity volume between oil sealing 7 and guide sleeve 4, prevented that in fluid, the impurity of larger particles enters this cavity volume, protected oil sealing 7; After the cavity volume between oil sealing 7 and guide sleeve 4 has been full of fluid, can automatically via the aperture be arranged on guide sleeve 4, push sealing shell fragment 8 inflow accumulators open; When fluid rocks, the fluid in accumulator will stop that the cavity volume that can't enter between oil sealing 7 and guide sleeve 4 is logical by sealed shell fragment 8, has guaranteed the working life of the clean and oil sealing 7 of this cavity volume inner fluid.When the horizontal installation of vibration damper, guarantee the sealing top of film 8 in vertical line.
Claims (1)
1. anti-vibration damper band lining of interfering and shaft cavity volume shell fragment are isolated leakage proof structure, and its structure is combined by outer cylinder (1), work cylinder barrel (2), piston rod (3), guide sleeve (4), Sealing (5), clamping nut (6), oil sealing (7), sealing shell fragment (8) and anti-wear lining (9); It is characterized in that: between guide sleeve (4) and clamping nut (6), be the sphere axially locating; Anti-wear lining (9) is fitted in the endoporus of guide sleeve (4); Right-hand member at anti-wear lining (9) endoporus is provided with a decompression sewage groove; Be provided with Sealing (5) on the right of anti-wear lining (9); Cavity volume between oil sealing (7) and guide sleeve (4) is by being arranged on the aperture on guide sleeve (4), then by control and the accumulator unilaterally connected of sealing shell fragment (8); Sealing shell fragment (8) is connected with the end face of guide sleeve (4) by an end of its outer cylinder barrel (1), near work cylinder barrel (2), holds in active state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320416008 CN203362978U (en) | 2013-07-12 | 2013-07-12 | Anti-interference structure provided with lining and used for preventing leakage of and isolating extended shaft containing cavity of shock absorber through clip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320416008 CN203362978U (en) | 2013-07-12 | 2013-07-12 | Anti-interference structure provided with lining and used for preventing leakage of and isolating extended shaft containing cavity of shock absorber through clip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203362978U true CN203362978U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320416008 Expired - Fee Related CN203362978U (en) | 2013-07-12 | 2013-07-12 | Anti-interference structure provided with lining and used for preventing leakage of and isolating extended shaft containing cavity of shock absorber through clip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203362978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715725A (en) * | 2016-04-13 | 2016-06-29 | 常州气弹簧有限公司 | Gas spring suitable for changeable loads |
-
2013
- 2013-07-12 CN CN 201320416008 patent/CN203362978U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715725A (en) * | 2016-04-13 | 2016-06-29 | 常州气弹簧有限公司 | Gas spring suitable for changeable loads |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20140712 |
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| EXPY | Termination of patent right or utility model |