CN203404306U - Sliding ring separation leakage prevention structure of shaft output containing cavity of shock absorber piston rod - Google Patents
Sliding ring separation leakage prevention structure of shaft output containing cavity of shock absorber piston rod Download PDFInfo
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- CN203404306U CN203404306U CN201320414457.8U CN201320414457U CN203404306U CN 203404306 U CN203404306 U CN 203404306U CN 201320414457 U CN201320414457 U CN 201320414457U CN 203404306 U CN203404306 U CN 203404306U
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- guide sleeve
- piston rod
- seal
- retaining ring
- spring
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Abstract
一种减震器活塞杆的出轴容腔滑环隔离防漏结构，其结构由外缸筒(1)、工作缸筒(2)、活塞杆(3)、导向套(4)、密封件(5)、压紧螺帽(6)、油封(7)、滑动挡圈(8)、弹簧(9)和防磨损衬套(10)组合而成；其特征在于：导向套(4)与压紧螺帽(6)之间系球面轴向定位；防磨损衬套(10)压装在导向套(4)的内孔里；在防磨损衬套(10)内孔的右端设置了一个减压储污槽，在减压储污槽的右边设置了密封件(5)；油封(7)与导向套(4)之间的容腔通过导向套(4)上的小孔，再通过滑动挡圈(8)和弹簧(9)的控制与储油室单向连通；滑动挡圈(8)以其外圆套装在外缸筒(1)的内孔里，由弹簧(9)顶住它的左内端面与导向套(4)的左端面贴合，盖住了导向套(4)的左端面上的小孔；确保了油封(7)和活塞杆(3)的使用寿命。
A slip ring isolation and anti-leakage structure for a shaft outlet cavity of a piston rod of a shock absorber, the structure is composed of an outer cylinder (1), a working cylinder (2), a piston rod (3), a guide sleeve (4), a seal (5), compression nut (6), oil seal (7), sliding retaining ring (8), spring (9) and anti-wear bushing (10); it is characterized in that: guide sleeve (4) and Spherical axial positioning is used between the compression nuts (6); the anti-wear bushing (10) is press-fitted in the inner hole of the guide sleeve (4); a The decompression dirt storage tank is provided with a seal (5) on the right side of the decompression dirt storage tank; the cavity between the oil seal (7) and the guide sleeve (4) passes through the small hole on the guide sleeve (4), and then passes through the The control of the sliding retaining ring (8) and the spring (9) communicates with the oil storage chamber in one direction; the sliding retaining ring (8) is set in the inner hole of the outer cylinder (1) with its outer circle, and is supported by the spring (9) Its left inner end face fits with the left end face of the guide sleeve (4), covers the aperture on the left end face of the guide sleeve (4); the service life of the oil seal (7) and the piston rod (3) is ensured.
Description
One, technical field:
The present invention relates to a kind of shaft cavity volume slip ring isolation leakage proof structure of piston lever of reducer.Thisly prevent that the structure of piston lever of reducer oil sealing leakage of oil is especially adapted to the operation machine vehicular shock absorber of high-speed railway, is also 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.Because pneumatic spring is without lateral rigidity, in order to increase rigidity and the damping of the bullet train compartment lateral movement due to its inertial mass initiation in service, in the structure of its suspension, be provided with the Horizontal type damping device that level is installed.The Horizontal type damping device that level is installed in use has the usage requirement that is different from vertically arranged vibration damper.
Because the high-speed railway of China is fast-developing in recent years, get up, in application, vertical and horizontal these two kinds of vibration dampers are not separated, but adopted the vibration damper of same structural type.So, often there is in actual use Horizontal type damping device and occur early stage leakage of oil, its damping characteristic declines.
Trace it to its cause two: one, the more vertical vibration damper of lateral force of Horizontal type damping device more greatly, direction is changeable more, and the wearing and tearing of piston rod and oil sealing are faster; The 2nd, due to the horizontal installation of vibration damper, what the fluid of its shoe cream room made piston rod goes out second chamber of shaft end oil seal invading in bubble in fluid always, the larger impurity of all kinds of particles in fluid, entering or be detained in the front portion of oil sealing with in the rocking of fluid, 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:
Object of the present invention will be developed a kind of low cost exactly, and simple and reliable Horizontal type damping device piston rod goes out the combination leakage proof structure of axle head.
The present invention is a kind of shaft cavity volume slip ring isolation leakage proof structure of piston lever of reducer, 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, slip back-up ring 8, spring 9 and anti-wear lining 10; It is characterized in that: between guide sleeve 4 and clamping nut 6, be sphere axially locating; Anti-wear lining 10 is fitted in the endoporus of guide sleeve 4; Right-hand member at anti-wear lining 10 endoporus is provided with a decompression sewage groove, and is provided with Sealing 5 on the right of decompression sewage groove; 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 slip back-up ring 8 and spring 9; Slip back-up ring 8 is sleeved on its cylindrical in the endoporus of outer cylinder 1, by spring 9, withstands its left inside end face and fit in the left side of guide sleeve 4, has covered the aperture on the left side of guide sleeve 4; They have combined 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 between guide sleeve and piston rod, without the leakage between Sealing, piston rod and guide sleeve, act directly on oil sealing and easily produce the drawbacks such as movement interference, proposed a brand-new preposition decompression storage dirt and prevented that the fluid of vibration damper clutch release slave cylinder and accumulator from directly entering guide sleeve 4 and 7 cavity volumes of oil sealing and fine-tuning axis, guarantees the oil sealing new structure in 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 sphere axially locating, can, because interfering the Lateral Force producing to finely tune voluntarily its shaft axis, interference and the wearing and tearing of guide sleeve 4, anti-wear lining 10 and piston rod 3 have been reduced.
When vibration damper is worked, fluid through the gap seepage between piston rod 3 and anti-wear lining 10 flow to after 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; Anti-wear lining 10 has reduced the wearing and tearing of piston rod 3; Cavity volume between oil sealing 7 and guide sleeve 4 has been full of after fluid, can automatically via the aperture being arranged on guide sleeve 4, push slip back-up ring 8 inflow accumulators open; When vibration damper is installed, make aperture on guide sleeve 4 left sides in vertical line upward, when fluid rocks, the fluid in accumulator will be stopped that the cavity volume that cannot enter between oil sealing 7 and guide sleeve 4 is logical by slip back-up ring 8, has guaranteed the working life of the clean and oil sealing 7 of this cavity volume inner fluid.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320414457.8U CN203404306U (en) | 2013-07-12 | 2013-07-12 | Sliding ring separation leakage prevention structure of shaft output containing cavity of shock absorber piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320414457.8U CN203404306U (en) | 2013-07-12 | 2013-07-12 | Sliding ring separation leakage prevention structure of shaft output containing cavity of shock absorber piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404306U true CN203404306U (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320414457.8U Expired - Fee Related CN203404306U (en) | 2013-07-12 | 2013-07-12 | Sliding ring separation leakage prevention structure of shaft output containing cavity of shock absorber piston rod |
Country Status (1)
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|---|---|
| CN (1) | CN203404306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338496A (en) * | 2021-06-10 | 2021-09-03 | 上海建工集团股份有限公司 | Method for connecting inner curtain wall and outer curtain wall |
-
2013
- 2013-07-12 CN CN201320414457.8U patent/CN203404306U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338496A (en) * | 2021-06-10 | 2021-09-03 | 上海建工集团股份有限公司 | Method for connecting inner curtain wall and outer curtain wall |
| CN113338496B (en) * | 2021-06-10 | 2022-10-11 | 上海建工集团股份有限公司 | Method for connecting inner curtain wall and outer curtain wall |
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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: 20140122 Termination date: 20140712 |
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| EXPY | Termination of patent right or utility model |