CN1260290A - Two-tage hydraulic damping shock absorber - Google Patents
Two-tage hydraulic damping shock absorber Download PDFInfo
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- CN1260290A CN1260290A CN 99127589 CN99127589A CN1260290A CN 1260290 A CN1260290 A CN 1260290A CN 99127589 CN99127589 CN 99127589 CN 99127589 A CN99127589 A CN 99127589A CN 1260290 A CN1260290 A CN 1260290A
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Abstract
The two-stage hydraulic damping antivibration device comprises piston rod, first piston, hydraulic oil, first cylinder, piston top cap, second cylinder, second piston, second cylinder top cap fixed on second cylinder body, first cylinder top cap, spring base support, spring cover-mounted on the spring base support and spring top cap support. When the vibration is transferred to piston rod through piston top cap to force on first piston, the hydraulic oil being in the first piston cylinder is pressed into second piston cylinder to implement first antivibration, then the hydraulic oil being in second piston cylinder is used to drive second piston upwards to compress spring to implement second antivibration. It is good in antivibration effect and is not easy to damage.
Description
The present invention relates to a kind of for motor vehicle liquid damper.
Existing vehicle has shortcomings such as damping effect is poor, fragile, the life-span lacks, can't keep in repair with bumper, and rider's comfort reduces greatly.For example, existing a kind of bumper, it mainly is made up of with the cylinder body that is connected both ends of the spring, piston rod, piston head spring.When spring stress, piston rod, piston head press down the hydraulic oil that makes in the cylinder body and produce pressure, and then the slit between piston and cylinder body is extruded into oil above the piston head, thereby play the effect that slows down impact.Because the oil sealing effect of piston rod is bad, is easy to leakage of oil, when hydraulic fluid leak, the shock-absorbing function of bumper can only be finished by spring, and when spring force was excessive, damping effect was very poor, if the elastic force of spring is too small, will damage because of piston stroke is excessive.And the bumper that has all is disposable being welded, in case damage, just can't keep in repair.
The objective of the invention is to overcome the deficiency of above-mentioned technology, a kind of good damping effect is provided, non-damageable two-tage hydraulic damping shock absorber.
The objective of the invention is to realize by following technical proposals:
A kind of two-tage hydraulic damping shock absorber, has piston rod, first stage piston, hydraulic oil, the one-level cylinder body, the piston head cap, first stage piston and first stage piston cylinder free-running fit, its technical scheme is that it also has the secondary cylinder body, second piston, be fixed in the secondary cylinder body top cap on the secondary cylinder body, be located at the one-level cylinder body top cap that moves up and down with the one-level cylinder body above the cap of secondary cylinder body top, be located at the spring pedestal support above the cap of one-level cylinder body top, be set in the spring on the spring pedestal support, spring top cap, spring top cap holder, spring top cap, spring, the spring pedestal support, one-level cylinder body top cap, secondary cylinder body top cap, the one-level cylinder body, the secondary cylinder body is located in the cap holder of spring top, be inserted in one-level cylinder body and secondary cylinder body top cap endoporus free-running fit in the second piston cylinder, it is from the affixed one-level cylinder body of external part top cap that secondary cylinder body top cap endoporus stretches out, second piston that its bottom of one-level cylinder body is affixed and second piston cylinder free-running fit, both ends of the spring is spacing by spring top cap and spring pedestal support respectively, spring top cap is spacing by spring top cap holder, the base of secondary cylinder body is threaded with spring top cap holder, the piston rod that stretches out from the first stage piston cylinder passes one-level cylinder body top cap and spring pedestal support and spring top cap, the centre hole and the piston head cap of spring top cap holder are affixed, piston rod and one-level cylinder body top cap free-running fit, hydraulic oil are located at respectively below the interior first stage piston of first stage piston cylinder, reach below the second piston in the second piston cylinder and be communicated with above-mentioned one, in the damping oilhole on the second piston of second piston cylinder.
In the technique scheme, be set with the guiding dust boot that slides along spring top cap holder above the piston head cap, this guiding dust boot and piston head cap are affixed.At the joint of piston rod and piston head cap, the cushion blocking of damper piston top cap and spring top cap bump is installed on the piston head cap.
The present invention since it also have secondary cylinder body, second piston, be fixed in secondary cylinder body top cap on the secondary cylinder body, be located at the one-level cylinder body top cap that moves up and down with the one-level cylinder body above the cap of secondary cylinder body top, be located at spring pedestal support above the cap of one-level cylinder body top, be set in spring, spring top cap, spring top cap holder on the spring pedestal support.Like this, when vibrations reach piston rod and make first stage piston stressed by the piston head cap, will be pressed into the hydraulic oil in the first stage piston cylinder by the damping oilhole on the second piston in the second piston cylinder of filling with hydraulic oil, when hydraulic oil during by the damping oilhole, will with the oilhole friction, produce and hinder the dumping force that first stage piston moves downward, produce heat simultaneously, consumed energy, thereby decay or absorption portion impact energy, by the effect of hydraulic oil and damping oilhole, realize the one-level damping like this; Hydraulic oil in second piston cylinder promotion second piston moves up under the effect of second piston then, make the one-level cylinder body head on one-level cylinder body top cap and the spring pedestal support moves up, spring is compressed, because the internal diameter of second piston cylinder is greater than the internal diameter of first stage piston cylinder, will reduce the ascending velocity of second piston so greatly, thereby relax jerk, absorb whole impact energys by spring at last, realize second stage damping, thereby reach optimum efficiency by hydraulic shock-absorption.This damping modes can make spring work under the light load state all the time, can improve service life effectively.Its good damping effect, not fragile.The present invention has good road surface tracking performance and shock absorbing capability, and it also can arbitrarily adjust the flexible stroke of piston rod according to the ground-surface needs.
The present invention will now be further detailed embodiment:
Accompanying drawing is a structural representation of the present invention.
As shown in drawings, the present invention has piston rod 4, first stage piston 13, hydraulic oil 14, one-level cylinder body 10, piston head cap 1, secondary cylinder body 12, second piston 10b, be fixed in secondary cylinder body top cap 11 on the secondary cylinder body, be located at the one-level cylinder body top cap 9 that moves up and down with the one-level cylinder body above the cap of secondary cylinder body top, be located at spring pedestal support 8 above the cap of one-level cylinder body top, be set in spring 7, spring top cap 6, spring top cap holder 5 on the spring pedestal support, first stage piston 13 and first stage piston cylinder 10a free-running fit.Spring top cap 6, spring 7, spring pedestal support 8, one-level cylinder body top cap 9, secondary cylinder body top cap 11, one-level cylinder body 10, secondary cylinder body 12 is located in the spring top cap holder 5, be inserted in one-level cylinder body 10 and secondary cylinder body top cap 11 endoporus free-running fits in the second piston cylinder 12a, it is from the affixed one-level cylinder body of external part top cap 9 that secondary cylinder body top cap endoporus stretches out, second piston 10b that one-level cylinder body 10 its bottoms are affixed and second piston cylinder 12a free-running fit, spring 7 two ends are spacing by spring top cap 6 and spring pedestal support 8 respectively, spring top cap 6 is spacing by spring top cap holder 5, the base 12b of secondary cylinder body 12 is threaded with spring top cap holder 5, the piston rod 4 that stretches out from first stage piston cylinder 10a passes one-level cylinder body top cap 9 and spring pedestal support 8 and spring top cap 6, the centre hole and the piston head cap 1 of spring top cap holder 5 are affixed, piston rod 4 and one-level cylinder body top cap 9 free-running fits, hydraulic oil 14 are located at respectively below the interior first stage piston of first stage piston cylinder 10a, reach below the second piston in the second piston cylinder 12a and be communicated with above-mentioned one, in the damping oilhole 10c on the second piston 10b of second piston cylinder 10a and 12a.The secondary cylinder body can adopt the mode that is threaded affixed with secondary cylinder body top cap, one-level cylinder body with one-level cylinder body top cap.Be set with the guiding dust boot 2 that slides along spring top cap holder 5 above the piston head cap 1, this guiding dust boot and piston head cap are affixed.At the joint of piston rod 4, the cushion blocking 3 of damper piston top cap and spring top cap 6 bumps is installed on the piston head cap 1 with piston head cap 1.
The present invention is when bearing heavy duty, and the stroke of piston rod reaches certain limit.Cushion blocking on this moment piston head cap will be pressed onto on the cap of spring top, makes spring stressed simultaneously up and down and compress, thereby reaches the optimum efficiency in the time of also adjusting the springs preload lotus easily when bearing heavy duty.
The present invention is threaded with spring top cap holder because of the base of secondary cylinder body, so it can arbitrarily adjust the flexible stroke of piston rod according to the ground-surface needs, and the secondary cylinder body is risen, and the pressure that is subjected to of spring increases like this, and the flexible stroke of piston rod is just lacked; Otherwise the flexible stroke of piston rod is just long.
When the present invention applies to the back damping of automobile or motor bike, can be used for being connected at the base of secondary cylinder body and affixed two hangers above the piston head cap with car body, wheel.As when using the preceding damping of motor bike, can on the base of secondary cylinder body, connect a hangers, the top and the preceding forked standard Joint of guiding dust boot.
Claims (3)
1, a kind of two-tage hydraulic damping shock absorber, has piston rod (4), first stage piston (13), hydraulic oil (14), one-level cylinder body (10), piston head cap (1), first stage piston (13) and first stage piston cylinder (10a) free-running fit, it is characterized in that it also has secondary cylinder body (12), second piston (10b), be fixed in the secondary cylinder body top cap (11) on the secondary cylinder body, be located at the one-level cylinder body top cap (9) that moves up and down with the one-level cylinder body above the cap of secondary cylinder body top, be located at the spring pedestal support (8) above the cap of one-level cylinder body top, be set in the spring (7) on the spring pedestal support, spring top cap (6), spring top cap holder (5), spring top cap (6), spring (7), spring pedestal support (8), one-level cylinder body top cap (9), secondary cylinder body top cap (11), one-level cylinder body (10), secondary cylinder body (12) is located in the spring top cap holder (5), be inserted in one-level cylinder body (10) and secondary cylinder body top cap (11) endoporus free-running fit in the second piston cylinder (12a), the affixed one-level cylinder body of the external part top cap (9) that it stretches out from secondary cylinder body top cap endoporus, second piston (10b) and second piston cylinder (12a) free-running fit that its bottom of one-level cylinder body (10) is affixed, spring (7) two ends are spacing by spring top cap (6) and spring pedestal support (8) respectively, spring top cap (6) is spacing by spring top cap holder (5), the base (12b) of secondary cylinder body (12) is threaded with spring top cap holder (5), the piston rod (4) that stretches out from first stage piston cylinder (10a) passes one-level cylinder body top cap (9) and spring pedestal support (8) and spring top cap (6), the centre hole of spring top cap holder (5) and piston head cap (1) are affixed, piston rod (4) and one-level cylinder body top cap (9) free-running fit, hydraulic oil (14) are located at respectively below the interior first stage piston of first stage piston cylinder (10a), reach below the second piston in the second piston cylinder (12a) and be communicated with above-mentioned one, in the damping oilhole (10c) on second piston cylinder (10a) and the second piston (10b) (12a).
2, bumper according to claim 1 is characterized in that being set with above the piston head cap (1) the guiding dust boot (2) that slides along spring top cap holder (5), and this guiding dust boot and piston head cap are affixed.
3, bumper according to claim 1 and 2 is characterized in that at the joint of piston rod (4) with piston head cap (1) cushion blocking (3) of damper piston top cap and spring top cap (6) bump being installed on the piston head cap (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99127589A CN1095530C (en) | 1999-12-26 | 1999-12-26 | Two-tage hydraulic damping shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99127589A CN1095530C (en) | 1999-12-26 | 1999-12-26 | Two-tage hydraulic damping shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1260290A true CN1260290A (en) | 2000-07-19 |
| CN1095530C CN1095530C (en) | 2002-12-04 |
Family
ID=5284940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99127589A Expired - Fee Related CN1095530C (en) | 1999-12-26 | 1999-12-26 | Two-tage hydraulic damping shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1095530C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100478251C (en) * | 2007-02-06 | 2009-04-15 | 南京航空航天大学 | Two-stage series connection two-chamber buffer |
| CN101699081B (en) * | 2009-10-23 | 2011-12-28 | 温州市康赛特自动控制阀门有限公司 | Large-torque pneumatic actuator with shock-absorbing limiting device |
| CN103307179A (en) * | 2013-06-25 | 2013-09-18 | 苏州唐氏机械制造有限公司 | Operation method of two-stage buffer capable of controlling buffering sequence stage by stage |
| CN104713415A (en) * | 2015-03-31 | 2015-06-17 | 马鞍山市秋枫工程塑料异型材料制造有限责任公司 | Cannon equipped with counter-impact vibration absorption device |
| CN104895993A (en) * | 2015-06-09 | 2015-09-09 | 马鞍山市秋枫工程塑料异型材料制造有限责任公司 | Multi-cavity recoiling shock absorption device |
| CN105114510A (en) * | 2013-06-25 | 2015-12-02 | 蒋盘君 | Working method for multi-stage buffer controlled by processor module |
| CN105156562A (en) * | 2013-08-08 | 2015-12-16 | 蒋盘君 | Shock-absorbing tea plucking machine controlled by processor module |
| CN106219021A (en) * | 2016-08-31 | 2016-12-14 | 无锡优萌模塑制造有限公司 | Case is received in the plastic chain storage of a kind of adjustable case body size |
| CN109209544A (en) * | 2018-10-26 | 2019-01-15 | 上海中船三井造船柴油机有限公司 | Self-adjusting buffer unit for marine low speed diesel engine exhaust valve |
| CN110259866A (en) * | 2019-05-10 | 2019-09-20 | 江苏大学 | A kind of bitubular dual Piston vehicle shock absorber |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392281C (en) * | 2005-01-25 | 2008-06-04 | 王宝国 | Hydraulic bidirection return stroke damper |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4030713A (en) * | 1975-01-20 | 1977-06-21 | Monroe Auto Equipment Company | Vehicle suspension device |
| US4201053A (en) * | 1978-11-06 | 1980-05-06 | Dover Corporation | Telescopic cylinder automatic synchronizer |
| FR2616503B1 (en) * | 1987-06-11 | 1992-07-10 | Ferco Int Usine Ferrures | DOUBLE ACTION SHOCK ABSORBER CAUSING LAMINATION OF A FLUID ON THE PASSAGE OF A THREAD |
| GB8815785D0 (en) * | 1988-07-02 | 1988-08-10 | British Petroleum Co Plc | Soft-landing device |
-
1999
- 1999-12-26 CN CN99127589A patent/CN1095530C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100478251C (en) * | 2007-02-06 | 2009-04-15 | 南京航空航天大学 | Two-stage series connection two-chamber buffer |
| CN101699081B (en) * | 2009-10-23 | 2011-12-28 | 温州市康赛特自动控制阀门有限公司 | Large-torque pneumatic actuator with shock-absorbing limiting device |
| CN103307179A (en) * | 2013-06-25 | 2013-09-18 | 苏州唐氏机械制造有限公司 | Operation method of two-stage buffer capable of controlling buffering sequence stage by stage |
| CN105114510A (en) * | 2013-06-25 | 2015-12-02 | 蒋盘君 | Working method for multi-stage buffer controlled by processor module |
| CN103307179B (en) * | 2013-06-25 | 2016-01-13 | 苏州海而仕信息科技有限公司 | A kind of method of work being suitable for the two-stage buffer of gradual control buffering order |
| CN105156562A (en) * | 2013-08-08 | 2015-12-16 | 蒋盘君 | Shock-absorbing tea plucking machine controlled by processor module |
| CN104713415A (en) * | 2015-03-31 | 2015-06-17 | 马鞍山市秋枫工程塑料异型材料制造有限责任公司 | Cannon equipped with counter-impact vibration absorption device |
| CN104713415B (en) * | 2015-03-31 | 2016-04-13 | 马鞍山市秋枫工程塑料异型材料制造有限责任公司 | A kind ofly recoil is housed hits the cannon of damping device |
| CN104895993A (en) * | 2015-06-09 | 2015-09-09 | 马鞍山市秋枫工程塑料异型材料制造有限责任公司 | Multi-cavity recoiling shock absorption device |
| CN106219021A (en) * | 2016-08-31 | 2016-12-14 | 无锡优萌模塑制造有限公司 | Case is received in the plastic chain storage of a kind of adjustable case body size |
| CN109209544A (en) * | 2018-10-26 | 2019-01-15 | 上海中船三井造船柴油机有限公司 | Self-adjusting buffer unit for marine low speed diesel engine exhaust valve |
| CN110259866A (en) * | 2019-05-10 | 2019-09-20 | 江苏大学 | A kind of bitubular dual Piston vehicle shock absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1095530C (en) | 2002-12-04 |
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| CF01 | Termination of patent right due to non-payment of annual fee |