CN1189679C - Rotary magnetic rheological liquid damper - Google Patents
Rotary magnetic rheological liquid damper Download PDFInfo
- Publication number
- CN1189679C CN1189679C CNB011137231A CN01113723A CN1189679C CN 1189679 C CN1189679 C CN 1189679C CN B011137231 A CNB011137231 A CN B011137231A CN 01113723 A CN01113723 A CN 01113723A CN 1189679 C CN1189679 C CN 1189679C
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- damping
- magnetic
- electromagnetic coil
- inner casing
- damping disc
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Abstract
The present invention relates to a device for generating rotary damping torque by magnetic rheological fluid, which comprises a damping disc sheet, a rotating shaft, magnetic rheological fluid, an electromagnetic coil, an inner casing, an outer casing, etc. The present invention is characterized in that the damping disc sheet 5 forms a barrel shape, and the core-shaped electromagnetic coil 1 is adopted. The present invention has the advantages of obviously improved damping torque, compact system, simple structure, small volume, no magnetic field leakage phenomenon, high magnetic field utilization rate, low torque at the time of zero currents, wide range of electric control torque, low electric power consumption and high reliability and stability of systems in work for a long time.
Description
Technical field:
The present invention relates to damping device, especially relate to and adopt the rotate device of damping torque of magnetic flow liquid.
Background technique:
At present, the research and design of magnetic rheological liquid damper is representative with U.S. Lord company.The supporting plane of rotary type damper is common disc structure, different just magnetic field layouts (position that is electromagnetic coil is divided into built-in and external two classes).For obtaining identical damping torque, built-in radial dimension is big and the axial dimension of external is bigger.Because the damping torque that single damping disc is produced is less, so also developed the damper of a plurality of discs.Compare with the monolithic damper, its damping torque increases with the increase of disc number.But the also corresponding increase of its axial dimension; And the operating current of electromagnetic coil wants corresponding increase many, and is constant in the magnetic intensity of magnetic flow liquid with guarantee effect; Simultaneously, the heat of power consumption generation also is difficult for distributing.That is to say, for traditional rotary type damper, make simple in structure, size is little, power consumption is few, then damping torque is less, and will make damping torque bigger, then big, the big energy-consuming of complex structure, size.
Summary of the invention:
The purpose of this invention is to provide the rotary magnetic rheological liquid damper that a kind of damping torque is bigger and simple in structure, size is little, power consumption is few.
Solution of the present invention is as follows:
Compare with traditional monolithic structure, comprise damping disc, rotating shaft, magnetic flow liquid, electromagnetic coil and shell etc. equally, it is characterized in that the damping disc is a tubbiness, electromagnetic coil places in the bung of damping disc, on inner casing, the outer cause magnetic guiding loop sealing of electromagnetic coil, the cover plate of inner casing links to each other with shell, the damping disc promptly is arranged in cavity between inner casing, magnetic guiding loop and the shell, four concentric, between magnetic guiding loop, damping disc and the interior housing-plate and between inner casing and the rotating shaft non-magnetizer is being set.
Innovation part of the present invention is the damping disc is designed to tubbiness, and adopts core shape electromagnetic coil.Be that damping disc 5 is not simple disk, but the combining of disk and cylinder.Be placed between inner casing 9 and the shell 3, inner casing just in time is in the bung of disc, and shell also should be tubbiness mutually, covers on outside the tubbiness disc; Adopt fastening piece to link to each other between the cover plate of inner casing and the shell; Electromagnetic coil 1 forms core shape structure on inner casing, its power lead 10 can pass the cover plate of inner casing or other unlikely generation magnetic flow liquid seepage part and draw; Outer cause magnetic guiding loop 4 sealing of electromagnetic coil, with isolated with magnetic flow liquid, when inner casing during for ' worker ' word shape, magnetic guiding loop can be tubular,, when inner casing is the boss shape, magnetic guiding loop can be tubbiness; Damping disc, inner casing, magnetic guiding loop are concentric with shell, rotating shaft 6 passes therebetween, as their center, between rotating shaft and the damping disc for fixedly connected (can adopt key, pin or Cock screw etc. to cooperate), to drive the rotation of damping disc, remaining parts (inner casing, magnetic guiding loop, shell etc.) then maintain static; Also form the cavity of tubbiness between inner casing, magnetic guiding loop and the shell, be full of magnetic flow liquid therebetween, the damping disc promptly is arranged in wherein (rotating at magnetic flow liquid), when promptly producing class, electromagnetic coil energising back, magnetic flow liquid solidify phenomenon, thereby to damping disc generation damping force; Between magnetic guiding loop and the interior housing-plate, between damping disc and the interior housing-plate and non-magnetizer 2,8 is set between inner casing and the rotating shaft, to guarantee the magnetic line of force to pass the plane of damping disc and circumferential surface after shell and inner casing form the magnetic closed-loop path; For preventing the seepage of magnetic flow liquid, all slits between the inner casing, shell, magnetic guiding loop and the damping disc that constitute its filled cavity, rotating shaft etc. all should adopt Sealing 7 to seal.
The present invention has been owing to adopted tubbiness damping disc and core shape electromagnetic coil, thereby has following advantage:
1. because formed damping force is a moment of rotation for rotating shaft between tubbiness damping disc and the magnetic flow liquid, at the bottom of its size equals barrel and the sum of products of the damping force that produced of bucket wall each several part and its arm of force (each several part arrives the distance of rotating shaft), and maximum arm of force equals the radius of this barrel wall circumference.Obviously, bucket rotary damping moment that wall provided is the most effective, so damping obviously improves (when the surface area at bucket wall and the bucket end is identical, the damping torque that barrel damping torque that wall produced is produced at the bottom of approximately being barrel 4 times).
2. because the structure of monolithic damping disc, low moment when making zero current, automatically controlled moment wide ranges, power consumption are few, and can as multi-sheet structure, not cause heat to be difficult to distribute, thereby power consumption and heating value also reduce greatly, thus system when working long hours reliability high and stable.
3. because its unique core shape electromagnetic coil structure, make the volume that electromagnetic coil is in increases whole damper in the bung of damping disc, hardly, thereby system compact, simple in structure, volume is little, and does not have the magnetic field phenomenon that leaks, and makes the magnetic field utilization ratio very high.
Description of drawings:
Accompanying drawing 1 is a rotary type damper structural representation of the present invention.Accompanying drawing 2 is the flux loop schematic representation.Accompanying drawing 3～6 is existing rotary type damper structural representation (accompanying drawing 3～4 is respectively monolithic external and built-in, and accompanying drawing 5～6 is respectively multi-disc external and built-in).
Embodiment:
Embodiments of the invention are as follows: the damper external diameter is 116mm, highly is 70mm, and the rotating shaft diameter is 10mm.Damping bucket external diameter 98mm, the high 35mm of bucket, wall thickness 5mm.Electromagnetic coil adopts the coiling of 0.6mm enameled cable, and winding is 800～1000 circles, and internal diameter is 40mm.Resistance is 6 Ω.Work maximum current 2A, maximal input 24W.Adopt the magnetic flow liquid of U.S. Lord company.The damping torque that is provided is: 0.6Nm during null field, 30Nm during maximum current.Magnetic field utilization ratio height, several no leakage magnetic field (under the 2A exciting curent, device outer surface magnetic intensity is less than 0.6mT).
Claims (1)
1, a kind of rotary magnetic rheological liquid damper, comprise damping disc, rotating shaft, magnetic flow liquid, electromagnetic coil and shell etc., it is characterized in that damping disc (5) is a tubbiness, electromagnetic coil (1) places in the bung of damping disc, on inner casing (9), outer cause magnetic guiding loop (4) sealing of electromagnetic coil, the cover plate of inner casing links to each other with shell (3), the damping disc promptly is arranged in cavity between inner casing, magnetic guiding loop and the shell, four concentric, and non-magnetizer (2,8) is being set between magnetic guiding loop, damping disc and the interior housing-plate and between inner casing and the rotating shaft (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011137231A CN1189679C (en) | 2001-06-19 | 2001-06-19 | Rotary magnetic rheological liquid damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011137231A CN1189679C (en) | 2001-06-19 | 2001-06-19 | Rotary magnetic rheological liquid damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1392354A CN1392354A (en) | 2003-01-22 |
| CN1189679C true CN1189679C (en) | 2005-02-16 |
Family
ID=4660431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011137231A Expired - Fee Related CN1189679C (en) | 2001-06-19 | 2001-06-19 | Rotary magnetic rheological liquid damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1189679C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100350171C (en) * | 2005-06-30 | 2007-11-21 | 中国科学技术大学 | High performance, multiple plates, revolving type magnetic rheologic damper |
| CN101862990A (en) * | 2010-06-08 | 2010-10-20 | 宁波大学 | Polishing device of non-spherical surface optical parts |
| CN103939519A (en) * | 2014-01-26 | 2014-07-23 | 福建工程学院 | Double-pole surface plate-type magnetorheological shock absorber |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295453C (en) * | 2003-09-08 | 2007-01-17 | 重庆大学 | Magnetorheological continuously variable transmission |
| KR100622075B1 (en) | 2004-10-15 | 2006-09-19 | 한국과학기술연구원 | Breaker using Rheological Fluid |
| US8327984B2 (en) * | 2009-10-30 | 2012-12-11 | Bwi Company Limited S.A. | Magnetorheological (MR) piston assembly with primary and secondary channels to improve MR damper force |
| ES2626458T3 (en) * | 2011-05-17 | 2017-07-25 | Beijingwest Industries Co. Ltd. | Magneto-Rheological Damping Set |
| CN105570374B (en) * | 2014-10-17 | 2019-03-15 | 株洲时代新材料科技股份有限公司 | A kind of revolving type magnetic rheologic damper |
| DE102017103811A1 (en) * | 2017-02-24 | 2018-08-30 | Inventus Engineering Gmbh | Suspension component with a rotary damper |
| DE102017103809A1 (en) * | 2017-02-24 | 2018-08-30 | Inventus Engineering Gmbh | Prosthetic device with a rotary damper |
| CN106838062B (en) * | 2017-03-30 | 2018-11-27 | 东北大学 | A kind of Y type brake disc magnetic rheological brake |
| DE102018100390A1 (en) | 2018-01-10 | 2019-07-11 | Inventus Engineering Gmbh | Magnetorheological braking device |
-
2001
- 2001-06-19 CN CNB011137231A patent/CN1189679C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100350171C (en) * | 2005-06-30 | 2007-11-21 | 中国科学技术大学 | High performance, multiple plates, revolving type magnetic rheologic damper |
| CN101862990A (en) * | 2010-06-08 | 2010-10-20 | 宁波大学 | Polishing device of non-spherical surface optical parts |
| CN101862990B (en) * | 2010-06-08 | 2012-09-05 | 宁波大学 | Polishing device of non-spherical surface optical parts |
| CN103939519A (en) * | 2014-01-26 | 2014-07-23 | 福建工程学院 | Double-pole surface plate-type magnetorheological shock absorber |
| CN103939519B (en) * | 2014-01-26 | 2016-02-17 | 福建工程学院 | A kind of bipolar flat-faced tube magneto-rheological vibration damper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1392354A (en) | 2003-01-22 |
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