CN201547168U - Double-layer sealing hydraulic shock absorber - Google Patents
Double-layer sealing hydraulic shock absorber Download PDFInfo
- Publication number
- CN201547168U CN201547168U CN2009202069256U CN200920206925U CN201547168U CN 201547168 U CN201547168 U CN 201547168U CN 2009202069256 U CN2009202069256 U CN 2009202069256U CN 200920206925 U CN200920206925 U CN 200920206925U CN 201547168 U CN201547168 U CN 201547168U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- shaped
- double
- ring
- oil
- 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
Links
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a double-layer sealing hydraulic shock absorber, which comprises a piston rod, an oil storage drum, a working cylinder and a guide holder, wherein a U-shaped sealing ring is arranged in the guide holder and is sheathed on the piston rod to be axially and slidingly matched with the piston rod; the U-shaped lip mouth of the U-shaped sealing ring faces towards the interior of the working cylinder and is embedded with an O-shaped ring; by the closely gluing of the lip edge of the U-shaped sealing ring and the sealing surface, when in working, the radial force of the sealing under the fluid pressure can be increased correspondingly, and the U-shaped sealing ring can be more closely glued with the sealing surface; under the double actions of the U-shaped sealing ring and an oil seal, the sealing effect of the shock absorber is better, and the service life is longer.
Description
Technical field
The utility model relates to a kind of vibration damper, particularly a kind of double-layer seal hydraulic damper.
Background technique
Hydraulic damper is a kind of motor vehicle damper very commonly used, when vehicle frame and vehicle bridge generation relative movement, the piston rod of hydraulic damper axially moves reciprocatingly along it, in this process, the hydraulic oil of piston one side flows to opposite side from the one-way valve on the piston, hydraulic oil produces damping when narrow and small one-way valve flows through, the energy consumption that makes the vehicle body vibrations is in the temperature rise of hydraulic oil.The frequency of the size of hydraulic damper damping force and vehicle body vibrations is directly proportional, and therefore, motor-driven vehicle going is on rugged road surface the time, because violent jolting makes the vibration damper oil cylinder bear bigger damping force.Under this frequent to-and-fro motion, the hydraulic damper sealing problem under the pressure effect of this high damping is seemed particularly important.If sealing effect is bad, leakage of oil just takes place easily, in case leakage of oil takes place, will have a strong impact on damping effect, to such an extent as to shorten the working life of vibration damper.
When common cylinder type hydraulic vibration damper was worked, the relative vibration damper housing of piston rod was done and is pumped, and caused the seepage of oil sealing wearing and tearing and hydraulic oil, influenced the damping of vibration damper.
Therefore, need a kind of good sealing effect, the hydraulic damper of long service life, sealing configuration is simple, and is with low cost and easy for installation.
The model utility content
In view of this, the utility model provides a kind of good sealing effect, the hydraulic damper of long service life, and sealing configuration is simple, and is with low cost and easy for installation.
Double-layer seal hydraulic damper of the present utility model, comprise piston rod, oil storage cylinder, clutch release slave cylinder and guide holder, be provided with the U-shaped seal ring in the described guide holder, described U-shaped seal ring is enclosed within on the piston rod and is slidingly matched vertically with piston rod, the U-shaped lip of U-shaped seal ring is in clutch release slave cylinder, and the embedded O shape circle that is provided with.
Further, be provided with air bag between described clutch release slave cylinder and the oil storage cylinder, compressed air suits in the air bag, and the air bag cross section is closed circle not;
Further, described O shape circle has pre-contour projector;
Further, also be provided with in the described guide holder scraper ring and with the corresponding oil-return groove of scraper ring, described scraper ring is positioned at the below of U-shaped seal ring, circle is close to piston rod in the scraper ring, oil-return groove is communicated with oil storage cylinder.
The beneficial effects of the utility model: lip limit and sealing surfaces by the U-shaped seal ring fit tightly, during work, the corresponding increase of radial force at the hydrodynamic pressure lower seal, the applying of U-shaped seal ring and sealing surfaces is tightr, under the double action of U-shaped seal ring and oil sealing, the sealing effect of vibration damper is better, longer service life.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A portion partial enlarged drawing of Fig. 1.
Embodiment
Fig. 1 is a structural representation of the present utility model; Fig. 2 is the A portion partial enlarged drawing of Fig. 1, and as shown in the figure: the double-layer seal hydraulic damper of present embodiment comprises piston rod 1, oil storage cylinder 2, clutch release slave cylinder 3 and guide holder 4; Piston rod 1 passes in guide holder 4, and is arranged in the clutch release slave cylinder 3, under the leading role of guide holder 4, can axially move reciprocatingly along clutch release slave cylinder 3.Guide holder 4 is fixedly installed on clutch release slave cylinder 3 one ends, oil storage cylinder 2 and clutch release slave cylinder 3 coaxial settings, and be enclosed within outside the clutch release slave cylinder 3, clutch release slave cylinder 3 and oil storage cylinder 2 are communicated with by one-way valve.Be provided with U-shaped seal ring 5 in the guide holder 4, U-shaped seal ring 5 is made by nitrile rubber, U-shaped seal ring 5 is enclosed within on the piston rod 1 and is slidingly matched vertically with piston rod 1, and carry out spacing to it by guide holder, the contacting part of U-shaped seal ring and piston rod 1 is made by teflon, reduce friction, improve working life.Between U-shaped seal ring 5 and the oil sealing 10 lining ring 11 is set, 11 pairs of U-shaped seal rings 5 of lining ring position.The U-shaped lip 6 of U-shaped seal ring 5 is in clutch release slave cylinder 3, and U-shaped lip 6 embedded is provided with O shape circle 7, and O shape circle 7 is also made by common elastic rubber material.
In the present embodiment, be provided with air bag 8 between described clutch release slave cylinder and the oil storage cylinder, the length of air bag 8 is filled with compressed nitrogen less than the length of oil storage cylinder in the air bag 8, because the good stability of nitrogen, with low cost, so present embodiment selects for use nitrogen as pressurized gas, certainly, the gas that other are stable, also can be used as pressurized gas of the present utility model as carbon dioxide, air bag 8 cross sections are 3/4ths annulus, make things convenient for hydraulic oil to flow in oil storage cylinder.When air bag 8 passes through one-way valve at hydraulic oil, the volumes in the oil storage cylinder 2 are compensated, prevent that the idle running phenomenon from appearring in vibration damper.
In the present embodiment, described O shape circle 7 has pre-contour projector, and U-shaped seal ring 5 and piston rod 1 are fitted more closely, and prevents that O shape circle 7 from skidding off in the U-shaped lip.
In the present embodiment, also be provided with in the described guide holder 4 scraper ring 9 and with scraper ring 9 corresponding oil-return grooves 10, described scraper ring 9 is positioned at the below of U-shaped seal ring 5, circle is close to piston rod 1 in the scraper ring 9, oil-return groove 10 is communicated with oil storage cylinder 2, and scraper ring 9 can be hung the unnecessary fluid on the piston rod 1, and fluid flows back to oil storage cylinder along oil-return groove, prevent leakage of oil, guarantee that further the vibration damper sealing is reliable.
The utility model in use, the lip limit and the piston rod of U-shaped seal ring fit tightly, when piston rod during in recovery stroke, the pressure of hydraulic oil struts the U-shaped lip, and in the corresponding increase of radial force of hydrodynamic pressure lower seal, the applying of U-shaped seal ring and sealing surfaces is tightr, to guarantee the reliability of sealing, by the double action of U-shaped seal ring and oil sealing, can effectively improve the sealing effect of hydraulic damper, increase the service life.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. double-layer seal hydraulic damper, comprise piston rod (1), oil storage cylinder (2), clutch release slave cylinder (3) and guide holder (4), it is characterized in that: be provided with U-shaped seal ring (5) in the described guide holder (4), described U-shaped seal ring (5) is enclosed within on the piston rod (1) and piston rod (1) is slidingly matched vertically, the U-shaped lip (6) of U-shaped seal ring (5) is in clutch release slave cylinder, and the embedded O shape circle (7) that is provided with.
2. double-layer seal hydraulic damper according to claim 1 is characterized in that: be provided with air bag (8) between described clutch release slave cylinder (3) and the oil storage cylinder (2), and the interior compressed air suits of air bag (8), and air bag (8) cross section is closed circle not.
3. double-layer seal hydraulic damper according to claim 2 is characterized in that: described O shape circle (7) has pre-contour projector.
4. double-layer seal hydraulic damper according to claim 3, it is characterized in that: also be provided with in the described guide holder (4) scraper ring (9) and with the corresponding oil-return groove of scraper ring (10), described scraper ring (9) is positioned at the below of U-shaped seal ring (5), circle is close to piston rod (1) in the scraper ring (9), and oil-return groove (10) is communicated with oil storage cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202069256U CN201547168U (en) | 2009-10-30 | 2009-10-30 | Double-layer sealing hydraulic shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202069256U CN201547168U (en) | 2009-10-30 | 2009-10-30 | Double-layer sealing hydraulic shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547168U true CN201547168U (en) | 2010-08-11 |
Family
ID=42602342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202069256U Expired - Fee Related CN201547168U (en) | 2009-10-30 | 2009-10-30 | Double-layer sealing hydraulic shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547168U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105378324A (en) * | 2013-07-12 | 2016-03-02 | 株式会社昭和 | Hydraulic shock absorber and cover member |
| CN106594156A (en) * | 2017-01-05 | 2017-04-26 | 浙江万向马瑞利减震器有限公司 | Novel sealing guider |
-
2009
- 2009-10-30 CN CN2009202069256U patent/CN201547168U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105378324A (en) * | 2013-07-12 | 2016-03-02 | 株式会社昭和 | Hydraulic shock absorber and cover member |
| US10076941B2 (en) | 2013-07-12 | 2018-09-18 | Showa Corporation | Hydraulic shock absorber and cover member |
| CN106594156A (en) * | 2017-01-05 | 2017-04-26 | 浙江万向马瑞利减震器有限公司 | Novel sealing guider |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103758910B (en) | Pump-type floating piston damper | |
| CN102359536B (en) | A kind of No leakage is without the two-way controlled MR damper of seal ring | |
| CN201547168U (en) | Double-layer sealing hydraulic shock absorber | |
| CN103089907A (en) | High-stability shock absorber assembly of automobile | |
| CN104265822B (en) | Automobile damp adjustable damper | |
| CN202194988U (en) | Leak-proof shock absorber | |
| CN201925392U (en) | Novel oil-gas shock absorber | |
| CN201944179U (en) | Vehicle shock absorber | |
| CN201884362U (en) | No-leakage and constant performance wear compensation type hydraulic cylinder | |
| CN204704306U (en) | Built-in sliding-vane motor formula energy-recovery shock absorber | |
| CN203656024U (en) | Pump type floating piston shock absorber | |
| CN202790294U (en) | Piston-rod guided automobile shock absorber | |
| CN202251956U (en) | Floating gap seal with high speed, high frequency and high abrasion resistance | |
| CN104265823A (en) | Shock absorber with base power generation | |
| CN201818701U (en) | Oil seal device provided with guider for shock absorber | |
| CN204704305U (en) | A kind of inflation hydraulic damper for automobile | |
| CN203297465U (en) | Dual-sealing hydraulic damper | |
| CN205991127U (en) | A kind of type variable Oil-gas Separation single drum shock absorber | |
| CN202484182U (en) | Guider component for shock absorber | |
| CN202301712U (en) | Automobile shock absorber assembly capable of efficiently reducing noise | |
| CN202468816U (en) | Pneumatic shock absorber for vehicle suspension | |
| CN202790293U (en) | Shock absorber | |
| CN202301707U (en) | Damper for attenuating automobile vibration | |
| CN206495934U (en) | A kind of Hydraulic shock absorber | |
| CN203129976U (en) | Pumping rod shock absorber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XIGEMA CO., LTD. Free format text: FORMER OWNER: SANMEN GROUP CO., LTD. Effective date: 20150410 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiang Mulin Inventor before: Wang Haiyong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 317108 TAIZHOU, ZHEJIANG PROVINCE TO: 318000 TAIZHOU, ZHEJIANG PROVINCE Free format text: CORRECT: INVENTOR; FROM: WANG HAIYONG TO: JIANG MULIN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150410 Address after: 318000, Zhejiang, Taizhou Province three counties Pu dam town (three coastal industrial city) Patentee after: Michael Seeger Limited by Share Ltd Address before: 317108 three coastal industrial cities in three counties of Zhejiang Province Patentee before: XGM Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20161030 |