CN201723641U - Novel magnetorheological fluid shock absorber - Google Patents

Novel magnetorheological fluid shock absorber Download PDF

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Publication number
CN201723641U
CN201723641U CN 201020283585 CN201020283585U CN201723641U CN 201723641 U CN201723641 U CN 201723641U CN 201020283585 CN201020283585 CN 201020283585 CN 201020283585 U CN201020283585 U CN 201020283585U CN 201723641 U CN201723641 U CN 201723641U
Authority
CN
China
Prior art keywords
piston rod
magnetorheological fluid
slave cylinder
clutch release
piston
Prior art date
Application number
CN 201020283585
Other languages
Chinese (zh)
Inventor
闫占辉
关铁鹰
李力强
李晓冬
Original Assignee
长春工程学院
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 长春工程学院 filed Critical 长春工程学院
Priority to CN 201020283585 priority Critical patent/CN201723641U/en
Application granted granted Critical
Publication of CN201723641U publication Critical patent/CN201723641U/en

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Abstract

The utility model relates to a novel magnetorheological fluid shock absorber, which mainly comprises a hanging ring assembly, a working cylinder, a position rod, an end cover, a coil, a sealing ring and a control wire, wherein the hanging ring assembly is connected with a rear axle of an automobile, magnetorheological fluid is arranged in a cavity arranged between the piston rod and the working cylinder, the end cover and the working cylinder are connected in a welding mode, the sealing ring is arranged at the inner side and the outer side in the radial direction of the end cover, and the control wire is connected with the coil, and is led out from inner holes of a piston and a piston rod. The magnetorheological fluid adopted by the utility model has the characteristics of variable damping, instant change (about 10 milliseconds) and reversibility of rheological characteristics, low price, pollution insensitivity, stepless control, accuracy, high speed, reliable and stable performance, little power consumption and the like. The guiding is convenient, the magnetorheological fluid flow can conveniently and perfectly flow, a guide part is arranged on the piston rod, the nitrogen charge pressure can be regulated and the nitrogen charging can be convenient through a one-way valve, the noise is reduced, and the real-time control problem of vibration in the automobile moving process can be perfectly solved, and the utility model can be a substitute product of a hydraulic shock absorber widely used at present in future.

Description

A kind of novel magnetic flow liquid vibration damper
Technical field
The utility model relates to a kind of automobile suspension system vibration damper, especially relates to a kind of magnetic flow liquid vibration damper of half ACTIVE CONTROL.
Background technique
The damping of automotive suspension can be divided into active and passive shock mitigation system.Active suspension system has only in the world at present on the top automobile of minority and adopts because its complex structure, control require high, factor such as cost an arm and a leg.What extensively adopted at present the home and abroad is the passive energy dissipation system, adopts the external core structure, utilizes the fluid damping technology of its orifice restriction to consume the energy that produces in the vibration processes.External takes up room greatly, poor reliability, and its dynamic performance is not good enough.
The model utility content
Technical problem to be solved in the utility model provides a kind of compact structure, the suspension vibration can be controlled in real time and moment is reversible, helps improving a kind of new automobile magnetic flow liquid vibration damper of riding comfort and operational stability.
For solving the problems of the technologies described above, the utility model provides a kind of novel magnetic flow liquid vibration damper, mainly comprise suspension ring assembly, clutch release slave cylinder, piston rod, end cap, coil, seal ring and guide line, the suspension ring assembly links to each other with automobile axle, be provided with magnetic flow liquid in the cavity between piston rod and the clutch release slave cylinder, end cap links to each other by welding manner with clutch release slave cylinder, and seal ring is installed in the inboard and the outside of end cap radial direction, guide line links to each other with coil, and draws by the endoporus of piston and piston rod.
In the cavity between piston rod and the clutch release slave cylinder floating piston is set, floating piston is divided into two chambeies up and down with the cavity between piston rod and the clutch release slave cylinder, is filled with nitrogen in the cavity of resorption, is filled with magnetic flow liquid in the epicoele, and one-way valve is welded on the clutch release slave cylinder.
The magnetic flow liquid that the utility model adopts has adaptive damping, and rheological properties moment (about 10 milliseconds) changes and reversible, cheap, insensitive to polluting, characteristics such as control is stepless, accurate, rapid, reliable performance is stablized, power consumption is little.Not only be convenient to guiding but also make the magnetic flow liquid fluid be convenient to fine flowing, on piston rod, be provided with targeting part, one-way valve can solve the size of filling nitrogen pressure and be convenient to fill nitrogen, reduce noise, solve the real-time control of motor racing process vibration preferably, will become the substitute products of present widely used hydraulic damper soon in the future.
Description of drawings
Fig. 1 is an erection drawing of the present utility model;
Fig. 2 is the suspension ring component drawings.
Embodiment
With reference to Fig. 1, the utility model comprises suspension ring assembly 1, clutch release slave cylinder 5, piston rod 6, end cap 12, coil 15 and guide line 17; For the magnetic flow liquid that prevents inside, chamber, a floating piston left side oozes out by the piston rod center hole, be provided with sealing epoxy plastics 14, for not only being convenient to guiding but also realize small damping control, adopted special structure, be about to conventional piston rod construction and be divided into piston rod 6, piston 3 and bolt 4 three parts, they are by screw thread and being weldingly connected, upwards arrange 8 bigger holes in 6 weeks of piston rod, being convenient to magnetic flow liquid flows, be drilled with aperture in the center portion, be convenient to guide line 17 and draw, piston rod 6 external diameters closely contact with clutch release slave cylinder 5, are used for whole guiding; Bolt 4 is used for piston 3 and is closely linked with piston rod 6, its external diameter is slightly smaller than the internal diameter of clutch release slave cylinder 5, guarantee that magnetic flow liquid slowly flows out and enough big damping function arranged at both gap location, its axial aperture is used for guide line 17 safety to be derived, and the epoxy plastics of piston 3 and bolt 4 ends is used to prevent that magnetic flow liquid from oozing out along guide line.7 is that guide sleeve, 8-11 are that combined seal ring, 16 is seal ring.
For reducing the noise that the piston rod to-and-fro motion produces, floating piston 2 is set in the cavity between piston rod and the clutch release slave cylinder, floating piston is divided into two chambeies up and down with the cavity between piston rod and the clutch release slave cylinder, be filled with nitrogen in the cavity of resorption, be filled with magnetic flow liquid in the epicoele, one-way valve 13 is welded on the clutch release slave cylinder, is used to control the size of institute's inflated with nitrogen pressure.
Consider the integral damping balance of device, the piston rod working portion adopts symplex structure, does not produce the side direction unbalanced force with assurance device; For guaranteeing piston rod left side chamber magnetic flow liquid free-flow free lifting and accurately locating; Be provided with 8 holes at targeting part; Between piston 3 and the clutch release slave cylinder inner chamber 1 mm clearance is arranged, purpose is to play the effect of small damping.
Fig. 2 is the suspension ring assembly, and wherein 1-1 is interior ring, and 1-2 is an elastomer, and 1-3 is an outer shroud.
When automobile friction or less vibration travel, guide line 17 no applied voltages, when detection device detects the bigger vibration of automobile generation, control system applies the pilot certain voltage, the alive outside effect of coil 15 produces magnetic field down, at this moment make that the magnetic flow liquid that flows through between piston 3 and the clutch release slave cylinder becomes the class solid, damping increases, the relative clutch release slave cylinder movement velocity of piston rod reduces, reach the purpose that reduces to vibrate, after vibration was reduced to certain value, adding the voltage that control system is applied to coil was zero, and magnetic flow liquid returns to original fluid state again.So constantly, constantly adjust the viscosity of coil control voltage and magnetic flow liquid, reach the damping purpose according to online detection vibrational state.

Claims (2)

1. novel magnetic flow liquid vibration damper, it is characterized in that: mainly comprise suspension ring assembly, clutch release slave cylinder, piston rod, end cap, coil, seal ring and guide line, the suspension ring assembly links to each other with automobile axle, be provided with magnetic flow liquid in the cavity between piston rod and the clutch release slave cylinder, end cap links to each other by welding manner with clutch release slave cylinder, seal ring is installed in the inboard and the outside of end cap radial direction, and guide line links to each other with coil, and draws by the endoporus of piston and piston rod.
2. a kind of novel magnetic flow liquid vibration damper according to claim 1, it is characterized in that: in the cavity between piston rod and the clutch release slave cylinder floating piston is set, floating piston is divided into two chambeies up and down with the cavity between piston rod and the clutch release slave cylinder, be filled with nitrogen in the cavity of resorption, be filled with magnetic flow liquid in the epicoele, one-way valve is welded on the clutch release slave cylinder.
CN 201020283585 2010-08-06 2010-08-06 Novel magnetorheological fluid shock absorber CN201723641U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201020283585 CN201723641U (en) 2010-08-06 2010-08-06 Novel magnetorheological fluid shock absorber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201020283585 CN201723641U (en) 2010-08-06 2010-08-06 Novel magnetorheological fluid shock absorber

Publications (1)

Publication Number Publication Date
CN201723641U true CN201723641U (en) 2011-01-26

Family

ID=43491965

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201020283585 CN201723641U (en) 2010-08-06 2010-08-06 Novel magnetorheological fluid shock absorber

Country Status (1)

Country Link
CN (1) CN201723641U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102889332A (en) * 2012-10-25 2013-01-23 株洲时代新材料科技股份有限公司 Magnetorheological damper for automotive suspension
CN102927191A (en) * 2012-10-25 2013-02-13 中国民航大学 Coil internally-installed type magnetorheological damper with oil needle
TWI420031B (en) * 2011-02-22 2013-12-21 Univ Nat Taipei Technology Magneto-rheological fluid brake
CN106641071A (en) * 2016-12-20 2017-05-10 上海工程技术大学 Magnetorheological fluid inflatable vibration reducer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI420031B (en) * 2011-02-22 2013-12-21 Univ Nat Taipei Technology Magneto-rheological fluid brake
CN102889332A (en) * 2012-10-25 2013-01-23 株洲时代新材料科技股份有限公司 Magnetorheological damper for automotive suspension
CN102927191A (en) * 2012-10-25 2013-02-13 中国民航大学 Coil internally-installed type magnetorheological damper with oil needle
CN102889332B (en) * 2012-10-25 2015-08-05 株洲时代新材料科技股份有限公司 A kind of magnetorheological damper for automotive suspension
CN106641071A (en) * 2016-12-20 2017-05-10 上海工程技术大学 Magnetorheological fluid inflatable vibration reducer

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110126

Termination date: 20110806