CN101178108A - Hydraulic locating type damping changing impact damper - Google Patents
Hydraulic locating type damping changing impact damper Download PDFInfo
- Publication number
- CN101178108A CN101178108A CNA2007101935139A CN200710193513A CN101178108A CN 101178108 A CN101178108 A CN 101178108A CN A2007101935139 A CNA2007101935139 A CN A2007101935139A CN 200710193513 A CN200710193513 A CN 200710193513A CN 101178108 A CN101178108 A CN 101178108A
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- damper
- floating piston
- piston
- valve seat
- hydraulic
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Abstract
The invention relates to an automobile suspension damper hydraulic position limit technology, in particular to a hydraulic position limit variable damper which can have the function of a normal damper and also can replace an elastic position limiter made of rubber in a normal suspension. The invention comprises a damper working cylinder, an oil storage cylinder sleeved at the external side of the damper working cylinder, a main piston matched with the damper working cylinder, and a compressed unloading valve and an oil inlet valve arranged on a bottom valve seat of the damper working cylinder. The invention is characterized in that a floating piston with an axial perforated oil liquid main passage at the middle part is arranged between the main piston and the bottom valve seat; the periphery of the floating piston oil liquid main passage is provided with a position limit damping hole; a position limit spring is arranged between the bottom valve seat and the floating piston. The invention can generate normal damping function, and can replace the elastic position limiter in the normal suspension made of rubber. The invention has better damping characteristic compared with the rubber position limiter.
Description
Technical field
The present invention relates to the spacing technology of automotive suspension damper hydraulic, particularly a kind ofly both can play common vibration damper, can replace the hydraulic locating type damping changing impact damper of the elasticity snubber that the rubber in the conventional suspension makes again.
Background technique
Usually all be provided with the elasticity snubber that rubber is made in the automotive suspension, to limit the moving stroke of excessive suspension, in order to avoid vibration damper and miscellaneous part produce rigid bump.But the energy that this elasticity snubber produces when compression almost all stores with the form of potential energy, discharges when elongation subsequently, forms significantly vibrations.There is rigid bump when on bad road, travelling, seriously increases the dynamic load of bearing system, reduce vehicle running smoothness greatly.
Summary of the invention
The objective of the invention is on bad road, to have rigid bump for overcoming present automotive suspension, the serious dynamic load that increases bearing system, reduce the defective of vehicle running smoothness greatly, and a kind of common vibration damper that both can play a part is proposed, can replace the hydraulic locating type damping changing impact damper of the elasticity snubber that the rubber in the conventional suspension makes again.It can eliminate the rigid bump of suspension system, and the vibration energy that dissipates rapidly, improves vehicle running smoothness.
Hydraulic locating type damping changing impact damper of the present invention, comprise the vibration damper clutch release slave cylinder, be nested with oil storage cylinder in the vibration damper clutch release slave cylinder outside, the main piston that matches with the vibration damper clutch release slave cylinder, be arranged on the vibration damper clutch release slave cylinder foot valve seat on compression unloading valve and oiling valve, be characterized in the floating piston that its middle part has the fluid main passage of axial perforation also is set between described main piston and foot valve seat, the periphery in this floating piston fluid main passage is provided with the limit damping hole; One limit spring is set between foot valve seat and floating piston.
The working principle of hydraulic locating type damping changing impact damper of the present invention is: when the vibration damper compression stroke surpasses limit spring length decision floating piston position, main piston and floating piston join, block the fluid main passage at floating piston middle part, main piston continues when descending, the major part of the fluid below the floating piston is pushed through the little damping hole on the floating piston, fraction is clamp-oned shoe cream room by the compression unloading valve on the bottom valve, resistance to compression pression is sharply increased, be created in whole clutch release slave cylinder area and the spacing pressure spacing power of product mutually, make vibration damper have the hydraulic cushion position-limiting action.The size that changes the floating piston damping hole can be regulated the size of spacing load; Change the spacing stroke of the adjustable in length vibration damper of the limit spring between foot valve seat and the floating piston.
On the limit damping hole on the described floating piston of said structure, also be provided with spacing unloading valve.Can regulate the size of spacing load by the size that changes floating piston unloading valve video disc spring pressure, play better buffer limit effect.Thereby further improve the run smoothness of automobile on abominable road surface.
The present invention is a kind of damping changing impact damper that produces position-limiting action.It except producing normal cushioning effect, the also contemporary elasticity snubber that has replaced the rubber in the conventional suspension to make.It has better damping characteristics than rubber snubber.Energy when common rubber snubber is hit is to store then as potential energy to put back to, and system's vibration energy does not reduce.And the spacing impact energy of hydraulic stop vibration damper is converted into irreversible heat energy, distributes in atmosphere, and vibration energy is significantly reduced.The agent structure of the damping changing impact damper of hydraulic stop is identical with common dual-tube shock absorber, just increases the floating piston that a cover has unloading valve and limit spring.
Description of drawings
Fig. 1 is the structural representation of hydraulic locating type damping changing impact damper of the present invention;
Fig. 2 is the another kind of structural representation of hydraulic locating type damping changing impact damper of the present invention
Embodiment
The embodiment who provides below in conjunction with accompanying drawing describes in further detail the present invention.
With reference to Fig. 1, a kind of hydraulic locating type damping changing impact damper, comprise vibration damper clutch release slave cylinder 7, be nested with oil storage cylinder 8 in vibration damper clutch release slave cylinder 7 outsides, the main piston 1 that matches with vibration damper clutch release slave cylinder 7, be arranged on vibration damper clutch release slave cylinder 7 foot valve seat 4 on compression unloading valve 5 and oiling valve 6, be characterized at described main piston 1 and 4 of foot valve seats the floating piston 2 that its middle part has the fluid main passage of axial perforation being set also, the periphery in these floating piston 2 fluid main passages is provided with limit damping hole 14; One limit spring 3 is set between foot valve seat 4 and floating piston 2.
With reference to Fig. 2, be also to be provided with spacing unloading valve 15 on the limit damping hole 14 on the described floating piston 2 in structure shown in Figure 1.Can regulate the size of spacing load by the size that changes floating piston unloading valve video disc spring pressure, play better buffer limit effect.
Among Fig. 1-2: 9 is the floating piston sealing ring, and 10 is the recovery unloader on the main piston, and 11 is main Oil sealing, 12 is guider, 13 is connecting ring.
Claims (2)
1. hydraulic locating type damping changing impact damper, comprise vibration damper clutch release slave cylinder (7), be nested with oil storage cylinder (8) in vibration damper clutch release slave cylinder (7) outside, the main piston (1) that matches with vibration damper clutch release slave cylinder (7), be arranged on vibration damper clutch release slave cylinder (7) foot valve seat (4) on compression unloading valve (5) and oiling valve (6), it is characterized in that, the floating piston (2) that one its middle part has the fluid main passage of axial perforation also is set between described main piston (1) and foot valve seat (4), and the periphery in this floating piston (2) fluid main passage is provided with limit damping hole (14); Between foot valve seat (4) and floating piston (2), a limit spring (3) is set.
2. hydraulic locating type damping changing impact damper according to claim 1 is characterized in that, also is provided with spacing unloading valve (15) on the limit damping hole (14) on the described floating piston (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101935139A CN101178108A (en) | 2007-12-10 | 2007-12-10 | Hydraulic locating type damping changing impact damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101935139A CN101178108A (en) | 2007-12-10 | 2007-12-10 | Hydraulic locating type damping changing impact damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101178108A true CN101178108A (en) | 2008-05-14 |
Family
ID=39404473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101935139A Pending CN101178108A (en) | 2007-12-10 | 2007-12-10 | Hydraulic locating type damping changing impact damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101178108A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942868A (en) * | 2010-09-28 | 2011-01-12 | 株洲时代新材料科技股份有限公司 | Viscous damping limiting method with limiting device and viscous damper |
| CN102630285A (en) * | 2009-10-07 | 2012-08-08 | 美提玛提科帕腾口有限责任公司 | Hydraulic damper spool valve |
| CN103016594A (en) * | 2012-12-27 | 2013-04-03 | 浙江金波减震器制造有限公司 | Damper with automatic damping adjusting function |
| CN103758914A (en) * | 2013-12-25 | 2014-04-30 | 山河智能装备股份有限公司 | Buffering oil cylinder of dynamic compaction machine and installation structure thereof |
| CN107023206A (en) * | 2017-04-11 | 2017-08-08 | 周庆川 | Antishock device for building |
| CN109630601A (en) * | 2018-12-28 | 2019-04-16 | 河南科技大学 | A kind of cartridge type damping device |
| CN109681566A (en) * | 2018-12-30 | 2019-04-26 | 宁波长飞亚塑料机械制造有限公司 | A kind of injection molding machine hydraulic damping device |
| CN111559214A (en) * | 2019-02-14 | 2020-08-21 | 徐州徐工液压件有限公司 | Oil gas suspension and mining dump truck |
| CN113490800A (en) * | 2018-08-14 | 2021-10-08 | 雅西尔·纳泽拉·加西亚 | Shock absorber with frequency dependent load by means of hydraulic inertia |
| CN113631830A (en) * | 2019-03-27 | 2021-11-09 | 标致雪铁龙汽车股份有限公司 | Shock absorber with adaptive end-of-travel stop equipped with floating nested plug |
-
2007
- 2007-12-10 CN CNA2007101935139A patent/CN101178108A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102630285A (en) * | 2009-10-07 | 2012-08-08 | 美提玛提科帕腾口有限责任公司 | Hydraulic damper spool valve |
| CN102630285B (en) * | 2009-10-07 | 2014-12-24 | 摩缇马帝有限公司 | Hydraulic damper spool valve |
| CN101942868A (en) * | 2010-09-28 | 2011-01-12 | 株洲时代新材料科技股份有限公司 | Viscous damping limiting method with limiting device and viscous damper |
| CN101942868B (en) * | 2010-09-28 | 2012-02-29 | 株洲时代新材料科技股份有限公司 | Viscous damping limiting method with limiting device and viscous damper |
| CN103016594A (en) * | 2012-12-27 | 2013-04-03 | 浙江金波减震器制造有限公司 | Damper with automatic damping adjusting function |
| CN103016594B (en) * | 2012-12-27 | 2015-07-08 | 浙江金波减震器制造有限公司 | Damper with automatic damping adjusting function |
| CN103758914A (en) * | 2013-12-25 | 2014-04-30 | 山河智能装备股份有限公司 | Buffering oil cylinder of dynamic compaction machine and installation structure thereof |
| CN107023206B (en) * | 2017-04-11 | 2019-02-22 | 周庆川 | Antishock device for building |
| CN107023206A (en) * | 2017-04-11 | 2017-08-08 | 周庆川 | Antishock device for building |
| CN113490800A (en) * | 2018-08-14 | 2021-10-08 | 雅西尔·纳泽拉·加西亚 | Shock absorber with frequency dependent load by means of hydraulic inertia |
| CN113490800B (en) * | 2018-08-14 | 2024-04-02 | 雅西尔·纳泽拉·加西亚 | Shock absorber with frequency dependent load by means of hydraulic inertia |
| CN109630601A (en) * | 2018-12-28 | 2019-04-16 | 河南科技大学 | A kind of cartridge type damping device |
| CN109681566A (en) * | 2018-12-30 | 2019-04-26 | 宁波长飞亚塑料机械制造有限公司 | A kind of injection molding machine hydraulic damping device |
| CN111559214A (en) * | 2019-02-14 | 2020-08-21 | 徐州徐工液压件有限公司 | Oil gas suspension and mining dump truck |
| CN111559214B (en) * | 2019-02-14 | 2021-09-28 | 徐州徐工液压件有限公司 | Oil gas suspension and mining dump truck |
| CN113631830A (en) * | 2019-03-27 | 2021-11-09 | 标致雪铁龙汽车股份有限公司 | Shock absorber with adaptive end-of-travel stop equipped with floating nested plug |
| CN113631830B (en) * | 2019-03-27 | 2023-10-10 | 标致雪铁龙汽车股份有限公司 | Shock absorber with adaptive end-of-travel stop equipped with floating nested plugs |
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Open date: 20080514 |