CN1757950A - Method of realizing vibration absorption and non-contact type power transmission using magnetic rheological fluid - Google Patents
Method of realizing vibration absorption and non-contact type power transmission using magnetic rheological fluid Download PDFInfo
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- CN1757950A CN1757950A CN 200410060934 CN200410060934A CN1757950A CN 1757950 A CN1757950 A CN 1757950A CN 200410060934 CN200410060934 CN 200410060934 CN 200410060934 A CN200410060934 A CN 200410060934A CN 1757950 A CN1757950 A CN 1757950A
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Abstract
A method for damping vibration and transferring power in non-contact mode by use of magnetic rheopectic fluid includes such steps as providing multiple disc blades having several magnetic gathering holes, isolating the master blade from slave blade by magnetic isolating float supporting ring to form working gap, filling magnetic rheopectic fluid in it, arranging electromagnetic solenoid and the yokes A and B with magnetic isolating ring, to make the magnetic flux pass through multiple disc blades and magnetic rheopectic fluid twice to form a closed loop, and changing the intensity of magnetic field between master and slave blades.
Description
Affiliated technical field
The present invention relates to vibration control and machine power transmission field, especially realize the method for vibration damping and contactless transmission of power with magneto-rheological fluid, at existing special vehicle with vane damper and four-wheel drive vehicle with the liquid viscous coupling damping ratio can't on-line continuous regulate, indicator diagram influences obviously by operating temperature, the requirement on machining accuracy height, can not realize weakness such as ACTIVE CONTROL, the invention discloses the method that realizes vibration damping and contactless transmission of power with magneto-rheological fluid.
Background technique
In " tank construction " chapter 15 the 3rd joint, describe working principle and the internal structure (with reference to schematic diagram Fig. 4 and Fig. 5) of special vehicle in detail with the blade vibration damper.Because the Sealing poor reliability of traditional vane damper was once once substituted by the friction disk type vibration damper.But because the walking comfort property of friction disk type vibration damper is poor, under the background that current Sealing technical merit improves day by day, traditional vane damper has been recaptured the market share that loses again.But traditional vane damper belongs to passive vibration damping components and parts, and is the same with conventional vehicles, has contradiction between low speed travelling comfort and high-speed handing stability, often can not take into account.Along with development of high-tech, advanced precision type instrument is equipped on vehicle, and has also proposed requirement for the high speed capability of vehicle, thereby requires more and more higher for the ACTIVE CONTROL of vehicle undercarriage.Because conventional leaf chip vibration damper belongs to the passive type vibration damper, its damping ratio can not online adjusting and ACTIVE CONTROL, thereby for the bad adaptability on multiple road surface, temperature rise strengthens, and indicator diagram is subjected to Temperature Influence big, often causes premature failure.Just how to change the traditional blades vibration damper into active/semi-active damper that the damping ratio on-line continuous is regulated, people such as Gu Liang are in " specificity analysis of vane damper and hydraulic parameter identification " literary composition, proposed between the high and low pressure chamber, to seal in the peripheral hardware hydraulic proportion valve, the method of on line control damping ratio is not dealt with problems but still have to start with in the machining accuracy that reduces the blade vibration damper and from vibration damper inside continuously.A kind of method can be arranged, make the internal pressure of vane damper little at normal temperatures, can also control the output of its damping force with external signal, realize low pressure, reliable initiatively half ACTIVE CONTROL?
In " hydro viscous drive " book of Wei Chen official and Zhao Jiaxiang collaboration, discussed in detail simultaneously by changing the interlobate working clearance of master and slave disc type, rely on the viscosity actuating unit (as liquid viscous coupling) of viscous fluid shear action transferring power, must adopt the high-precision hydraulic control system to control the interlobate working clearance of master and slave disc type, the cost and the machining accuracy of control have been improved virtually, make the cost height (not waiting from hundreds of thousands to millions of RMB) of high-power complete machine, use occasion usually is restricted.If utilize the method for the apparent viscosity of fixed interval (FI) and change fluid, not only saved the cost of high-precision hydraulic control system control, also reduce simultaneously accuracy of manufacturing and cost of production greatly, make the cost of high-power complete machine low (not waiting), significant technology and economic benefit are obviously arranged from several ten thousand to hundreds of thousands.
In recent years, a kind of by adding the technology of weak electric signal control fluid (apparent) thickness, be referred to as magnetic converting technique, become the core of Active suspension and transmission of power gradually, this technology successfully has been applied to engineering machinery (as Chinese Liu worker's CLG858 high speed loader Active suspension technology---Chinese Wuhan Pan Gu's vibration damping antidetonation buffer technology Co., Ltd provides), high-grade car (as four kinds of vehicles of Cadillac of AM General---U.S. DELPHI company provides), building structure (the Dongting Lake suspension cable bridge of China---U.S. LORD company provides) etc.Along with the development of magnetic converting technique, the magnetic converting technique promise well.
The application model of magnetic converting technique is divided into circulation model and shear model, and what this invention utilized is shear model.Shear model is thought: two two flat boards that are separated from each other δ, slide with the v linear velocity relatively are H applying magnetic intensity, and when the conventional viscosity of medium was μ, the shearing stress between its plate met
τ＝τ
0+μv/δ
τ wherein
0It is the function of magnetic intensity.Obviously, when v=0, the Newtonian fluid item disappears, as long as magnetic intensity is non-vanishing, the shearing force between two plates is non-vanishing.Thereby, just can control the size of the shearing force between two plates by changing magnetic intensity.In v ≠ 0 o'clock, the Newtonian fluid item still has contribution.
Can problem be overcome its many shortcoming, target of the present invention just place with ripe magnetic converting technique transformation traditional blade vibration damper and the viscosity actuating unit (as liquid viscous coupling) that relies on viscous fluid shear action transferring power.
Summary of the invention
The objective of the invention is at above-mentioned deficiency, proposition realizes the method for vibration damping and contactless transmission of power with magneto-rheological fluid, utilize magnetic converting technique, to provide a kind of low for requirement on machining accuracy, by adding weak electric signal, make the scheme of damping ratio or transmission of power on-line continuous, quick, reversible adjusting on a large scale.
The technological scheme that addresses the above problem
The technological scheme that addresses the above problem is:
Realize the method for vibration damping and contactless transmission of power with magneto-rheological fluid, relate to vibration control and transmission of power and control field, it is characterized in that: adopt multi-disc disc type blade, multi-disc disc type blade is divided into active blade (30), passive blade (20) by master and slave relation, active blade (30), passive blade (20) preface are successively rearranged active blade group and passive blade group along common axis (200), active blade group and driving shaft (170) are linked, passive blade group and driven shaft (15) are linked; Use the gap every between magnetic floating support ring (90) restriction active blade and passive blade working surface, make active blade (30) separate the back with the working surface of passive blade (20) and form the working clearance (50); Working space between active blade and passive blade is filled with magneto-rheological fluid in (50); Side on common axis (200) direction of multi-disc disc type blade is provided with o (130), the yoke I (100,120) of ribbon core (140); Opposite side on common axis (200) direction of multi-disc disc type blade is provided with yoke II (10); On yoke I (100,120), magnetism resistent ring (110) is set, on multi-disc disc type blade, circumferentially have several magnetic-converging holes (40,60) with the corresponding circumference of magnetism resistent ring (110) upper edge, at first make the main flux (70) of o once vertically pass magneto-rheological fluid in multi-disc disc type blade and each working space (50), next makes main flux (80) secondary of o vertically pass magneto-rheological fluid in multi-disc disc type blade and each working space (50), forms main flux loop (180); Apply electric energy for o (130), change the magnetic intensity in the working space (50) between active blade and passive blade, make the magneto-rheological fluid rheological properties generation notable change in it, under active blade and condition that the working surface of passive blade does not have directly to contact, between active blade and passive blade, transmit damping torque, realize vibration damping and for the function of contactless transmission of power continuous control.
Advantage of the present invention
Advantage of the present invention is:
1) working surface of active blade and passive blade does not directly contact, adopt big gap, has reduced in the machining requirement for dimensional accuracy, blade surface Roughness and surface roughness;
2) on a large scale, can continuously, fast, reversibly regulate and control the thickness of magneto-rheological fluid, realize half ACTIVE CONTROL of vibration damper, the compensation work Temperature Influence;
3) on a large scale, can continuously, fast, reversibly regulate and control the thickness of magneto-rheological fluid, make the power producing characteristics of liquid viscous coupling can adapt to the specific (special) requirements of road;
4) fundamentally solve contradiction between vehicle low speed comfort property, high-speed handing stability and the turning performance etc., when improving vehicle low speed comfort property, improved its high-speed handing stability;
5) implement active force or Torque Control by weak electric signal.
Figure of description
Figure of description is as follows:
Fig. 1 is the model schematic representation of magneto-rheological fluid vibration damper and the contactless transmission of power device of magneto-rheological fluid.
Fig. 2 is active blade, the passive blade in magneto-rheological fluid vibration damper and the contactless transmission of power device of the magneto-rheological fluid model, the partial enlarged drawing of the magnetic-converging hole on working clearance, active blade and passive blade between magnetic floating support ring, active blade and passive blade.
Below with reference to Fig. 1, Fig. 2 describes the method that realizes vibration damping and contactless transmission of power with magneto-rheological fluid in detail: as Fig. 1, Fig. 2 is described, and the model of the contactless transmission of power device of magneto-rheological fluid vibration damper and magneto-rheological fluid is by yoke II (10), driven shaft (15), passive blade (20), active blade (30), magnetic-converging hole (40,60), every magnetic floating support ring (90), yoke I (100,120), magnetism resistent ring (110), o (130), iron core (140), bearing (150), right snap ring (160), main flux closed-loop path (180), left side snap ring (190) and common centreline (200) are formed.
Realize the method for vibration damping and contactless transmission of power with magneto-rheological fluid, relate to vibration control and transmission of power and control field, it is characterized in that: adopt multi-disc disc type blade, multi-disc disc type blade is divided into active blade (30), passive blade (20) by master and slave relation, active blade (30), passive blade (20) preface are successively rearranged active blade group and passive blade group along common axis (200), active blade group and driving shaft (170) are linked, passive blade group and driven shaft (15) are linked; Use the gap every between magnetic floating support ring (90) restriction active blade and passive blade working surface, make active blade (30) separate the back with the working surface of passive blade (20) and form the working clearance (50); Working space between active blade and passive blade is filled with magneto-rheological fluid in (50); Side on common axis (200) direction of multi-disc disc type blade is provided with o (130), the yoke I (100,120) of ribbon core (140); Opposite side on common axis (200) direction of multi-disc disc type blade is provided with yoke II (10); On yoke I (100,120), magnetism resistent ring (110) is set, on multi-disc disc type blade, circumferentially have several magnetic-converging holes (40,60) with the corresponding circumference of magnetism resistent ring (110) upper edge, at first make the main flux (70) of o once vertically pass magneto-rheological fluid in multi-disc disc type blade and each working space (50), next makes main flux (80) secondary of o vertically pass magneto-rheological fluid in multi-disc disc type blade and each working space (50), forms main flux loop (180); Apply electric energy for o (130), change the magnetic intensity in the working space (50) between active blade and passive blade, make the magneto-rheological fluid rheological properties generation notable change in it, under active blade and condition that the working surface of passive blade does not have directly to contact, between active blade and passive blade, transmit damping torque, realize vibration damping and for the function of contactless transmission of power continuous control.
Claims (1)
1, realizes the method for vibration damping and contactless transmission of power with magneto-rheological fluid, relate to vibration control and transmission of power and control field, it is characterized in that: adopt multi-disc disc type blade, multi-disc disc type blade is divided into active blade (30), passive blade (20) by master and slave relation, active blade (30), passive blade (20) preface are successively rearranged active blade group and passive blade group along common axis (200), active blade group and driving shaft (170) are linked, passive blade group and driven shaft (15) are linked; Use the gap every between magnetic floating support ring (90) restriction active blade and passive blade working surface, make active blade (30) separate the back with the working surface of passive blade (20) and form the working clearance (50); Working space between active blade and passive blade is filled with magneto-rheological fluid in (50); Side on common axis (200) direction of multi-disc disc type blade is provided with o (130), the yoke I (100,120) of ribbon core (140); Opposite side on common axis (200) direction of multi-disc disc type blade is provided with yoke II (10); On yoke I (100,120), magnetism resistent ring (110) is set, on multi-disc disc type blade, circumferentially have several magnetic-converging holes (40,60) with the corresponding circumference of magnetism resistent ring (110) upper edge, at first make the main flux (70) of o once vertically pass magneto-rheological fluid in multi-disc disc type blade and each working space (50), next makes main flux (80) secondary of o vertically pass magneto-rheological fluid in multi-disc disc type blade and each working space (50), forms main flux loop (180); Apply electric energy for o (130), change the magnetic intensity in the working space (50) between active blade and passive blade, make the magneto-rheological fluid rheological properties generation notable change in it, under active blade and condition that the working surface of passive blade does not have directly to contact, between active blade and passive blade, transmit damping torque, realize vibration damping and for the function of contactless transmission of power continuous control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100609340A CN100392283C (en) | 2004-10-08 | 2004-10-08 | Method of realizing vibration absorption and non-contact type power transmission using magnetic rheological fluid |
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| CNB2004100609340A CN100392283C (en) | 2004-10-08 | 2004-10-08 | Method of realizing vibration absorption and non-contact type power transmission using magnetic rheological fluid |
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| CN1757950A true CN1757950A (en) | 2006-04-12 |
| CN100392283C CN100392283C (en) | 2008-06-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107614916A (en) * | 2015-04-21 | 2018-01-19 | 埃索欧耐迪克超动力 | Magneto-rheological fluid clutch apparatus with cylindrical flow body space |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5014829A (en) * | 1989-04-18 | 1991-05-14 | Hare Sr Nicholas S | Electro-rheological shock absorber |
| KR100562767B1 (en) * | 1998-03-04 | 2006-03-20 | 보그-워너 인코포레이티드 | Motor vehicle transfer case assembly and differential assembly inculding a magnetorheological fluid clutch |
| DE19820569A1 (en) * | 1998-05-08 | 1999-11-11 | Schenck Ag Carl | Valve based on electrorheological or magnetorheological liquids |
| CN1320776A (en) * | 2000-04-24 | 2001-11-07 | 邱玲 | Magneto-rheologic fluid damping cylinder |
| CN2472006Y (en) * | 2001-02-28 | 2002-01-16 | 汪建晓 | Magnet rheological fluid damper for rotor system oscilation control |
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2004
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107614916A (en) * | 2015-04-21 | 2018-01-19 | 埃索欧耐迪克超动力 | Magneto-rheological fluid clutch apparatus with cylindrical flow body space |
| CN107614916B (en) * | 2015-04-21 | 2019-09-24 | 埃索欧耐迪克超动力 | Magneto-rheological fluid clutch apparatus |
| US10480594B2 (en) | 2015-04-21 | 2019-11-19 | Exonetik Inc. | Magnetorheological fluid clutch apparatus with cylindrical fluid gap |
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Granted publication date: 20080604 Termination date: 20101008 |