CN102829121A - Variable gas spring with magnetorheological fluid stiffness damper - Google Patents
Variable gas spring with magnetorheological fluid stiffness damper Download PDFInfo
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- CN102829121A CN102829121A CN 201110159741 CN201110159741A CN102829121A CN 102829121 A CN102829121 A CN 102829121A CN 201110159741 CN201110159741 CN 201110159741 CN 201110159741 A CN201110159741 A CN 201110159741A CN 102829121 A CN102829121 A CN 102829121A
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- magnetorheological fluid
- gas spring
- cushion pad
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- pad supporting
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Abstract
The invention relates to an variable gas spring with a magnetorheological fluid stiffness damper, comprising a fixed seal plate, a rubber airbag, inside-outside compressed gas, a magnetorheological fluid damping tube, a magnetorheological fluid buffer and a shock absorber, a support tube of the shock absorber, and a magnetorheological fluid buffer. Magnetorheological fluid is below the inside-outside compressed gas, and inside-outside magnetorheological fluid is communicated with a magnetorheological fluid damping tube. The magnetorheological fluid damper is provided with coils, the current of which is controlled by an external circuit. When the stiffness of the gas spring is needed to increase, the current of the coils is enlarged, and the stiffness of the magnetorheological fluid is increased, then the relative volume of the gas spring is decreased, and the stiffness is increased. And vice versa, the stiffness is decreased. The regulation of the damping is directly regulated by the magnetorheological fluid buffer. According to the invention, nothing but by improving the shock absorber on the original gas spring of an automobile, fulfilling magnetorheological fluid, and adding the magnetorheological fluid damper and the magnetorheological fluid buffer, the structure is very simple and the manufacture is easy. The viscosity of magnetorheological fluid is adjusted continuously by the current; therefore, the stiffness and the damping of the gas spring are continuously adjustable.
Description
Technical field
The present invention relates to the automobile air spring, particularly utilize the magnetic flow liquid functional material to carry out the structure of air spring rigidity and Adjustable Damping.The present invention is applicable to various automotive suspensions, and need carry out the continuously adjustable place of spring rate and damping side.
Background technique
Automotive suspension is the force transmission mechanism between vehicle body and the vehicle bridge, and the various power between wheel and the road surface all will be by the automotive suspension transmission.The general automobiles suspension is mainly by elasticity components and parts such as spring, leaf springs, and damping device is formed.Its elasticity coefficient, damping characteristic is constant, only has linear performance, and it can only be to the particular way surface state, and specific incentives frequency and running state of the vehicle play certain buffering vibration isolation effect.In order to improve this state; Develop again with pneumatic spring; Hydro-pneumatic spring is the nonlinear spring suspension of representative, and this has improved the smoothness of automobile and the stability of running at high speed to a certain extent, but the characteristic that the elasticity coefficient damping constant can not be regulated; Make this automotive suspension can not fundamentally adapt to the automobile continuous change of operating conditions in actual use, thereby be difficult to effectively improve the galloping Safety performance.
The hydraulic pressure Active suspension relies on hydraulic driving power to support sprung parts, and the size of support force is controlled.The hydraulic pressure Active suspension generally uses electro-hydraulic servo control, and its low frequency to vibration has good response, but often powerless for dither.Hydraulic pressure Active suspension complex structure is made difficulty in addition, and additive decrementation is than high-energy source.Semi-active suspension supports vehicle body by elastic element, regulates the level of vibration of automotive suspension through the damping of Control of Automobile.With respect to the hydraulic pressure Active suspension, semi-active suspension mechanism is simple, and is easy to manufacture, and reliability is high, and energy consumption is low, but vibration-damping function with not as Active suspension.Because its suspension rate can not be regulated, and makes vehicle body height not regulate by road conditions.
In order to address this problem patent 200620103324.9 " magnetic rheology elastic body rubber air spring "; " by magnetic rheology elastic body rubber with and the upper supporting plate that connects up and down form with lower carrier plate and control system, control system comprises pressure regulation system and real-time rigidity regulating system.Solved the problem of rubber air spring ability automatic time adjusting change in elevation and rigidity, improved the damping performance of automobile, improved riding comfort and handle stationarity." patent 201010521330 " a kind of magnetorheological hydraulic pressure rubber air spring "; " comprise fixing seal plate, following fixing seal plate and rubber external capsule; Be provided with magnetic flow liquid in the described rubber external capsule; Also be provided with rubber bag tank in the described rubber external capsule, described rubber bag tank is connected with upper and lower fixing seal plate, and described magnetic flow liquid is connected with magnetorheological hydraulic pressure regulating system.Thereby having solved automatic time regulates highly and the problem of rigidity; Have characteristics such as oil resistance height, regulation range is wide, thermal adaptability is strong, speed of response is fast; And simple in structure, advantages of small volume, cost are low; Can be used for the automobile active suspension system,, also can be applicable to other vibration active control systems as integratedly becoming in real time degree of uprising automatically with MR damper, become rigidity and becoming the automobile active suspension system of damping.”
Summary of the invention
The present invention includes fixing seal plate, following fixing seal plate, rubber pneumatic bag, inside and outside pressurized gas, magnetorheological fluid damp pipe, MR fluid shock absorber and cushion pad, the cushion pad supporting drum is formed.Inside and outside pressurized gas is magnetic flow liquid down, and inside and outside magnetic flow liquid is connected by the magnetorheological fluid damp pipe.The magnetorheological fluid damp pipe is provided with coil, and coil current is controlled by external circuit.When the automobile road conditions need increase gas spring rigidity, strengthen coil current, increase magnetorheological fluid damp, at this moment the relative volume of gas spring reduces, and rigidity increases.Otherwise, reduce coil current, reduce magnetorheological fluid damp, the relative volume of gas spring increases, and rigidity reduces.The adjusting of damping then can directly be regulated through MR fluid shock absorber.
The present invention only needs on original automotive air spring, to improve cushion pad, charges into magnetic flow liquid, add magnetorheological fluid damp pipe and MR fluid shock absorber, so structure is very simple, and it is easy especially to make.Because the viscosity of magnetic flow liquid can be adjustable continuously by electric current, thereby gas spring rigidity of the present invention and damping are all adjustable continuously, thereby can regulate vehicle body height through the adjustment spring rate.
Description of drawings
Fig. 1 is the structure sectional view of magnetic flow liquid stiffness and damping adjustable gas spring.Wherein 1 is to go up the fixing seal plate, the 2nd, and rubber pneumatic bag, the 3rd, external compression gas, the 4th, hoop, the 5th, following fixing seal plate, the 6th, the magnetorheological fluid damp pipe of band magnetic core coil, the 7th, magnetic flow liquid, the 8th, interior pressurized gas.The 9th, cushion pad supporting drum, the 10th, cushion pad, the 11st, MR fluid shock absorber.Fig. 2 is the damp tube structure sectional view of 6 band magnetic core coils.Wherein 12 is magnetic conduction orifice valve shells, the 13rd, and magnetic conduction damping valve gap not, the 14th, the magnetic flow liquid conduit, the 15th, coil is the magnetic conduction capsule not, and the 16th, coil magnetic core, the 17th, coil.
Embodiment
With Fig. 1 is example.When the sensor senses road conditions are overturned when bigger, at this moment being sent by control circuit increases the suspension rate signal, in the magnetorheological fluid damp pipe 6 in the coil 17 electric current increase, thereby magnetic intensity increases in 6, makes that the magnetic flow liquid viscosity in 6 increases.This quite reduces with the linked hole between 3 and 8, and correspondingly 3 effective volume reduces, thus the increase of the rigidity of gas spring.Under the ultimate state, 3 and 8 isolate fully, and the rigidity of gas spring is only determined by 3 volumes.When the sensor senses road conditions are overturned when smaller, at this moment send and reduce the suspension rate signal by control circuit, in the magnetorheological fluid damp pipe 6 in the coil 17 electric current reduce, thereby magnetic intensity reduces in 6, makes that the magnetic flow liquid viscosity in 6 reduces.This suitable and increase of the linked hole between 3 and 8, correspondingly 3 effective volume increases, thus the rigidity of gas spring reduces.Under the ultimate state, 3 and 8 connect fully, the rigidity of gas spring by 3 and 8 volumes and determine.The required damping of automotive suspension is then provided by MR fluid shock absorber 11 and damp tube 6.
Claims (3)
1. magnetic flow liquid stiffness and damping adjustable gas spring; It is characterized in that: cushion pad supporting drum 9 is arranged in rubber pneumatic bag 2; Difference compressed air suits 3 and 8 in rubber pneumatic bag 2 and the cushion pad supporting drum 9; Bottom at rubber pneumatic bag 2 and cushion pad supporting drum 9 is a magnetic flow liquid 7, and rubber pneumatic bag 2 and magnetorheological fluid damp pipe 6 connections that the magnetic flow liquid in the cushion pad supporting drum 9 passes through to be with magnetic core coil have MR fluid shock absorber 11 in rubber pneumatic bag 2 and cushion pad supporting drum 9.
2. according to the said characteristic of claim 1, it is characterized in that: the urceolus of MR fluid shock absorber 11 seals placement in cushion pad supporting drum 9, makes pressurized gas 3 and 8 to be communicated with through magnetorheological fluid damp pipe 6.
3. according to the said characteristic of claim 1, it is characterized in that: the plane of magnetic flow liquid 7 in outside cushion pad supporting drum 9 is higher than the plane in the cushion pad supporting drum 9 under the state of equilibrium, makes that the volumes in the cushion pad supporting drum 9 are big as far as possible.
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CN 201110159741 CN102829121A (en) | 2011-06-15 | 2011-06-15 | Variable gas spring with magnetorheological fluid stiffness damper |
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CN 201110159741 CN102829121A (en) | 2011-06-15 | 2011-06-15 | Variable gas spring with magnetorheological fluid stiffness damper |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104986454A (en) * | 2015-06-09 | 2015-10-21 | 张习梅 | Packaging system for transporting glass panels |
CN105064531A (en) * | 2015-09-01 | 2015-11-18 | 北京交通大学 | Self-reset magnetic fluid damper |
CN105179547A (en) * | 2015-09-15 | 2015-12-23 | 广德高斯特车辆部件有限公司 | Minitype self-balance rubber air spring |
CN108105313A (en) * | 2017-11-29 | 2018-06-01 | 重庆理工大学 | Air cushion shock absorber based on magnet controlled damping |
CN108194571A (en) * | 2017-12-29 | 2018-06-22 | 重庆巨九磊汽车零部件制造有限公司 | A kind of good damper of load-bearing property |
CN110206152A (en) * | 2019-06-04 | 2019-09-06 | 中原工学院 | The gimbal point structure of steel construction X beam Y shape column |
CN115324982A (en) * | 2022-08-26 | 2022-11-11 | 中国人民解放军海军工程大学 | An adaptive hydraulic muffler |
CN117800489A (en) * | 2023-12-12 | 2024-04-02 | 北京朝阳环境集团有限公司 | Kitchen waste anaerobic tank with submerged stirring device |
-
2011
- 2011-06-15 CN CN 201110159741 patent/CN102829121A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104986454A (en) * | 2015-06-09 | 2015-10-21 | 张习梅 | Packaging system for transporting glass panels |
CN104986454B (en) * | 2015-06-09 | 2016-12-14 | 重庆市鑫耀机械厂 | A kind of packaging system for transporting glass panel |
CN105064531A (en) * | 2015-09-01 | 2015-11-18 | 北京交通大学 | Self-reset magnetic fluid damper |
CN105064531B (en) * | 2015-09-01 | 2017-03-08 | 北京交通大学 | A self-resetting magnetic fluid damper |
CN105179547A (en) * | 2015-09-15 | 2015-12-23 | 广德高斯特车辆部件有限公司 | Minitype self-balance rubber air spring |
CN108105313A (en) * | 2017-11-29 | 2018-06-01 | 重庆理工大学 | Air cushion shock absorber based on magnet controlled damping |
CN108194571A (en) * | 2017-12-29 | 2018-06-22 | 重庆巨九磊汽车零部件制造有限公司 | A kind of good damper of load-bearing property |
CN110206152A (en) * | 2019-06-04 | 2019-09-06 | 中原工学院 | The gimbal point structure of steel construction X beam Y shape column |
CN115324982A (en) * | 2022-08-26 | 2022-11-11 | 中国人民解放军海军工程大学 | An adaptive hydraulic muffler |
CN115324982B (en) * | 2022-08-26 | 2024-03-26 | 中国人民解放军海军工程大学 | An adaptive hydraulic muffler device |
CN117800489A (en) * | 2023-12-12 | 2024-04-02 | 北京朝阳环境集团有限公司 | Kitchen waste anaerobic tank with submerged stirring device |
CN117800489B (en) * | 2023-12-12 | 2024-08-16 | 北京朝阳环境集团有限公司 | Kitchen waste anaerobic tank with submerged stirring device |
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Application publication date: 20121219 |