CN105156556A - Double-rod multi-stage diffraction active single-control variable-damping magneto-rheological damper - Google Patents
Double-rod multi-stage diffraction active single-control variable-damping magneto-rheological damper Download PDFInfo
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- CN105156556A CN105156556A CN201510426956.2A CN201510426956A CN105156556A CN 105156556 A CN105156556 A CN 105156556A CN 201510426956 A CN201510426956 A CN 201510426956A CN 105156556 A CN105156556 A CN 105156556A
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Abstract
The invention discloses a double-rod multi-stage diffraction active single-control variable-damping magneto-rheological damper and belongs to the field of variable-damping magneto-rheological fluid instruments. The damper comprises a rheological fluid cylinder module, two sets of end cap modules completely identical in structure, two sets of diffraction piston modules completely identical in structure, a gradually-changed work gap, a power supply and magneto-rheological fluid. The rheological fluid cylinder module comprises a cylinder body, an electrified coil wound on the outer side of the cylinder body and a coil shielding layer. One end of the gradually-changed work gap is provided with a large work gap port with the largest inner diameter, and the other end of the gradually-changed work gap is provided with a small work gap port with the smallest inner diameter. The power supply is arranged on one end cap module and connected with the electrified coil through a wire. The cylinder body is filled with the magneto-rheological fluid. The electrified coil controls the viscosity of the magneto-rheological fluid through currents. The magneto-rheological damper is compact in structure, variable in work gap and magnetic field intensity and larger in damping force adjusting range.
Description
Technical field
The present invention relates to mutative damp magnetic flow liquid instrument field, refer in particular to a kind of two multistage diffraction of bar active single control mutative damp MR damper.
Background technique
MR damper is a kind of half proactive intelligence vibration damping instrument, is widely used in the structural vibration reduction control fields such as automobile, bridge, building.Existing MR damper adopts the constant working clearance usually, and the viscosity controlling fluid by external power supply obtains different damping forces.Although the MR damper of prior art achieves mutative damp, but still there is certain defect: the change of the external magnetic field that places one's entire reliance upon in the constant working clearance makes the excursion of damping force little to the size adjusting damping force.
Summary of the invention
The technical problem that the present invention need solve is: the problems such as damping force regulation range is little existed for prior art, the invention provides a kind of compact structure, becomes working clearance and magnetic intensity, active single control mutative damp MR damper that damping force regulation range is larger.
In order to solve the problem, the solution that the present invention proposes is: the multistage diffraction of two bar active single control mutative damp MR damper, and it comprises, and stream becomes liquid cylinder module, two groups of identical symmetries of structure are installed in that described stream becomes the end cap module at liquid cylinder module two ends, two groups of identical symmetries of structure are installed in described stream completely and become the diffraction piston modules of liquid cylinder inside modules, gradual change working clearance, power supply, magnetic flow liquid.
Stream of the present invention becomes the coil shielding layers that liquid cylinder module comprises cylinder body body, is wound in the hot-wire coil of described cylinder body body exterior, is installed in described hot-wire coil outside; Described end cap module comprises end cap body, the bearing hole be opened on described end cap body, the linear bearing be installed in described bearing hole, be installed in the seal arrangement that described end cap body seals described bearing hole; Described diffraction piston modules comprises piston only, one end is equiped with the described piston only the other end and reaches the piston rod of described cylinder body body exterior, the gradual change working clearance of the serpentine bend internal diameter gradual change be opened on described piston only.
Two groups of piston onlies of the present invention the inner space of described cylinder body body are divided into Liu Bian liquid main chamber and stream becomes the inclined room of liquid; One end of described gradual change working clearance is the maximum working clearance large mouth of the internal diameter that communicates with Liu Bian liquid main chamber, and the other end is the minimum working clearance osculum of internal diameter that by becoming liquid with stream, room communicates; Described power supply is installed in end cap module described in one of them, and is connected with described hot-wire coil with wire; Be full of described magnetic flow liquid in described cylinder body body, described hot-wire coil is by the viscosity of magnetic flow liquid described in Current Control.
Compared with prior art, the invention has the advantages that: the of the present invention pair of multistage diffraction of bar active single control mutative damp MR damper is provided with the magnetic intensity that hot-wire coil control flow check becomes liquid; Diffraction piston modules of the present invention is provided with the gradual change working clearance, make magnetic flow liquid in the intervals of business between large mouth and working clearance osculum mutative damp power flow.It can thus be appreciated that the present invention is simple and reasonable, adopt and become the adjustment that working clearance and magnetic intensity achieve damping force, significantly widen damping force regulation range.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of the of the present invention pair of multistage diffraction of bar active single control mutative damp MR damper.
Fig. 2 is the cross-sectional structure schematic diagram that stream of the present invention becomes liquid cylinder module.
In figure, 1-stream becomes liquid cylinder module; 11-cylinder body body; 12-hot-wire coil; 13-coil shielding layers; 2-end cap module; 21-end cap body; 22-bearing hole; 23-linear bearing; 24-seal arrangement; 3-diffraction piston modules; 31-piston only; 32-piston rod; 33-gradual change working clearance; 34-working clearance large mouth; 35-working clearance osculum; 41-Liu Bian liquid main chamber; 42-stream becomes the inclined room of liquid; 5-power supply; 6-magnetic flow liquid.
Embodiment
Below with reference to the drawings and specific embodiments, the present invention is described in further detail.
Shown in Fig. 1 and Fig. 2, the of the present invention pair of multistage diffraction of bar active single control mutative damp MR damper, comprises stream and becomes liquid cylinder module 1, two groups of identical symmetries of structure and be installed in end cap module 2, two groups of identical symmetries of structure that stream becomes liquid cylinder module 1 two ends and be installed in stream completely and become the diffraction piston modules 3 of liquid cylinder module 1 inside, gradual change working clearance 33, power supply 5, magnetic flow liquid 6.
Stream becomes the coil shielding layers 13 that liquid cylinder module 1 comprises cylinder body body 11, is wound in the hot-wire coil 12 of cylinder body body 11 outside, is installed in hot-wire coil 12 outside.
End cap module 2 comprises end cap body 21, the bearing hole 22 be opened on end cap body, the linear bearing 23 be installed in bearing hole 22, be installed on end cap body 21 seal arrangement 24 that bearing hole 22 seals; Diffraction piston modules 3 comprises piston only 31, one end is equiped with piston only 31 the other end and reaches the piston rod 32 of cylinder body body 11 outside, the gradual change working clearance 33 of the serpentine bend internal diameter gradual change be opened on piston only 31.
The inner space of cylinder body body 11 is divided into Liu Bian liquid main chamber 41 and the stream change inclined room 42 of liquid by two groups of piston onlies 31; Liu Bian liquid main chamber 41 and stream become the inclined room 42 of liquid and are full of magnetic flow liquid 6; One end of gradual change working clearance 33 is the maximum working clearance large mouth 34 of the internal diameter that communicates with Liu Bian liquid main chamber 41, and the other end is the minimum working clearance osculum 35 of internal diameter that by becoming liquid with stream, room 42 communicates; When two groups of diffraction piston modules (3) are outwards moved, magnetic flow liquid 6 is flowed into by working clearance osculum 35, flows out from working clearance large mouth 34, and damping force increases; Otherwise damping force reduces.
Power supply 5 is installed in one of them end cap module 2, and is connected with hot-wire coil 12 with wire; Be full of magnetic flow liquid 6 in cylinder body body 11, hot-wire coil 12 is by the viscosity of Current Control magnetic flow liquid 6.
Claims (1)
1. the multistage diffraction of pair bar active single control mutative damp MR damper, is characterized in that: comprise that stream becomes liquid cylinder module (1), two groups of identical symmetries of structure are installed in that described stream becomes the end cap module (2) at liquid cylinder module (1) two ends, two groups of identical symmetries of structure are installed in described stream completely and become the inner diffraction piston modules (3) of liquid cylinder module (1), gradual change working clearance (33), magnetic flow liquid (6) and power supply (5); Described stream becomes liquid cylinder module (1) and comprises cylinder body body (11), is wound in the outside hot-wire coil (12) of described cylinder body body (11), is installed in the outside coil shielding layers (13) of described hot-wire coil (12); Described end cap module (2) comprises end cap body (21), the bearing hole (22) be opened on described end cap body, the linear bearing (23) be installed in described bearing hole (22), be installed on described end cap body (21) the seal arrangement (24) that described bearing hole (22) seals; Described diffraction piston modules (3) comprises piston only (31), one end is equiped with the gradual change working clearance (33) that described piston only (31) the other end reaches the outside piston rod (32) of described cylinder body body (11), the serpentine bend internal diameter gradual change be opened on described piston only (31); Piston only (31) described in two groups the inner space of described cylinder body body (11) is divided into Liu Bian liquid main chamber (41) and stream becomes the inclined room of liquid (42); One end of described gradual change working clearance (33) is the internal diameter that communicates with Liu Bian liquid main chamber (41) maximum working clearance large mouth (34), and the other end is the minimum working clearance osculum (35) of internal diameter that by becoming liquid with stream, room (42) communicates; Described power supply (5) is installed in end cap module (2) described in one of them, and is connected with described hot-wire coil 12 with wire; Be full of described magnetic flow liquid (6) in described cylinder body body (11), described hot-wire coil (12) is by the viscosity of magnetic flow liquid described in Current Control (6).
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CN201510426956.2A CN105156556A (en) | 2015-07-20 | 2015-07-20 | Double-rod multi-stage diffraction active single-control variable-damping magneto-rheological damper |
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CN201510426956.2A CN105156556A (en) | 2015-07-20 | 2015-07-20 | Double-rod multi-stage diffraction active single-control variable-damping magneto-rheological damper |
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Citations (11)
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US5492312A (en) * | 1995-04-17 | 1996-02-20 | Lord Corporation | Multi-degree of freedom magnetorheological devices and system for using same |
CN2752541Y (en) * | 2004-12-24 | 2006-01-18 | 河北科技大学 | Magnetic flow variable liquid damper |
CN2765003Y (en) * | 2005-01-06 | 2006-03-15 | 湖南大学 | Permanent-magnet adjusting assembled magnetic current variation damper |
CN101737449A (en) * | 2009-12-29 | 2010-06-16 | 重庆仪表材料研究所 | Screw rod type magnetorheological rotary damper |
CN101749358A (en) * | 2010-02-24 | 2010-06-23 | 谭和平 | Damping force adjustable permanent magnet type magnetic current variable damper |
CN102691739A (en) * | 2012-06-11 | 2012-09-26 | 谭晓婧 | Rectangular vibration absorber of two-out-bar magneto-rheological elastic body |
CN103032512A (en) * | 2013-01-06 | 2013-04-10 | 谭晓婧 | Combined piston double-rod magnetorheological damper |
CN103148157A (en) * | 2012-07-19 | 2013-06-12 | 吉林大学 | Multistage extrusion-type magneto-rheological damper |
CN203051609U (en) * | 2013-01-29 | 2013-07-10 | 谭晓婧 | Combined cylinder double-outlet-rod magneto-rheological damper |
CN103527702A (en) * | 2013-10-24 | 2014-01-22 | 合肥工业大学 | Magneto-rheological damper suitable for high-speed impact/low-speed vibration control system |
CN203926577U (en) * | 2014-06-27 | 2014-11-05 | 四川工程职业技术学院 | Magnetorheological fluid shock absorber |
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2015
- 2015-07-20 CN CN201510426956.2A patent/CN105156556A/en active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5492312A (en) * | 1995-04-17 | 1996-02-20 | Lord Corporation | Multi-degree of freedom magnetorheological devices and system for using same |
CN2752541Y (en) * | 2004-12-24 | 2006-01-18 | 河北科技大学 | Magnetic flow variable liquid damper |
CN2765003Y (en) * | 2005-01-06 | 2006-03-15 | 湖南大学 | Permanent-magnet adjusting assembled magnetic current variation damper |
CN101737449A (en) * | 2009-12-29 | 2010-06-16 | 重庆仪表材料研究所 | Screw rod type magnetorheological rotary damper |
CN101749358A (en) * | 2010-02-24 | 2010-06-23 | 谭和平 | Damping force adjustable permanent magnet type magnetic current variable damper |
CN102691739A (en) * | 2012-06-11 | 2012-09-26 | 谭晓婧 | Rectangular vibration absorber of two-out-bar magneto-rheological elastic body |
CN103148157A (en) * | 2012-07-19 | 2013-06-12 | 吉林大学 | Multistage extrusion-type magneto-rheological damper |
CN103032512A (en) * | 2013-01-06 | 2013-04-10 | 谭晓婧 | Combined piston double-rod magnetorheological damper |
CN203051609U (en) * | 2013-01-29 | 2013-07-10 | 谭晓婧 | Combined cylinder double-outlet-rod magneto-rheological damper |
CN103527702A (en) * | 2013-10-24 | 2014-01-22 | 合肥工业大学 | Magneto-rheological damper suitable for high-speed impact/low-speed vibration control system |
CN203926577U (en) * | 2014-06-27 | 2014-11-05 | 四川工程职业技术学院 | Magnetorheological fluid shock absorber |
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