CN105156570A - Double-rod variable-orifice passive single-control variable-damping magnetorheological damper - Google Patents
Double-rod variable-orifice passive single-control variable-damping magnetorheological damper Download PDFInfo
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- CN105156570A CN105156570A CN201510427375.0A CN201510427375A CN105156570A CN 105156570 A CN105156570 A CN 105156570A CN 201510427375 A CN201510427375 A CN 201510427375A CN 105156570 A CN105156570 A CN 105156570A
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Abstract
The invention discloses a double-rod variable-orifice passive single-control variable-damping magnetorheological damper and belongs to the field of variable-damping magnetorheological fluid instruments. The variable-damping magnetorheological damper comprises a rheological fluid cylinder body, two end cover modules identical in structure, and two magnet piston modules. The two magnet piston modules are identical in structure and are symmetrically arranged in the rheological fluid cylinder body. The magnet piston modules comprise piston bodies, piston rods, permanent magnets arranged on the inner sides of the piston bodies, and magnet protective layers arranged on the permanent magnets. Orifices with the unchanged internal diameters are formed in the piston bodies. A gradually-changing throttling column parallel to the piston rods is arranged between the two end cover modules. The gradually-changing throttling column is a conical rod, the diameter of the middle of the gradually-changing throttling column is maximal, the diameters of the two ends of the gradually-changing throttling column are minimal, and the diameters of the other portions of the gradually-changing throttling column linearly change. The internal diameters of the orifices are equal to the maximal diameter of the gradually-changing throttling column. The magnetorheological damper is reasonable in structure and free of energy consumption, and damping force has no upper limit range.
Description
Technical field
The present invention relates to mutative damp magnetic flow liquid instrument field, refer in particular to a kind of two bar variable orifice passive single control mutative damp MR damper.
Background technique
MR damper is a kind of intelligent mutative damp vibration damping instrument, is widely used in the structural vibration reduction control fields such as automobile, bridge, building, and it has the features such as volume is little, response is fast, damping force is adjustable.The MR damper working principle of prior art is substantially identical, and the magnetic field namely utilizing field coil to produce changes the viscosity of the magnetic flow liquid flowed in constant operation gap, realizes the control of damping force.Although the MR damper of prior art achieves mutative damp, but still there is certain defect: (1) constant working clearance causes damping force regulation range limited; (2) field coil makes damper structure complicated, consumes electric energy many.
Summary of the invention
The technical problem that the present invention need solve is: the technical problems such as the damping force regulation range for prior art existence is limited, the invention provides a kind of rational in infrastructure, damping force no maximum scope, zero MR damper consumed energy.
In order to solve the problem, the solution that the present invention proposes is: two bar variable orifice passive single control mutative damp MR damper, and its stream becomes that liquid cylinder, two groups of structures are identical is installed in that described stream becomes the end cap module at liquid cylinder two ends, two groups of identical symmetries of structure are installed in the magnet piston modules that described stream becomes liquid cylinder inside respectively.
End cap module of the present invention comprises end cap body, is located at the bearing hole at described end cap body central place, the linear bearing be installed in described bearing hole, seal the seal arrangement of described bearing hole.
Magnet piston modules of the present invention comprises piston only, one end be provided with the described piston only the other end by described seal arrangement and linear bearing reach described stream become liquid cylinder outside piston rod, be installed in the permanent magnet inside described piston only, the magnetic iron inhibitory coating be installed on permanent magnet;
It is hollow cylinder that stream of the present invention becomes liquid cylinder; Described piston only offers the throttle orifice that internal diameter is constant; The gradual change throttling pillar being parallel to described piston rod is equiped with between end cap module described in two groups; Described gradual change throttling pillar is that mid diameter is maximum, and two end part diameter is minimum, the tapered rod of remaining part diameter change; The internal diameter of described throttle orifice equals the maximum diameter of described gradual change throttling pillar; The inner space that described stream becomes liquid cylinder is divided into Liu Bian liquid central chamber to described magnet piston modules and stream becomes the other room of liquid; During described magnet piston modules motion, magnetic flow liquid can flow between other room mutually at described Liu Bian liquid central chamber, stream change liquid; The diameter of described piston only equals the internal diameter that described stream becomes liquid cylinder; Gap between the periphery wall of described gradual change throttling pillar and the inner circle wall of described throttle orifice constitutes the working clearance that magnetic flow liquid flows.
Compared with prior art, the invention has the advantages that: of the present invention pair of bar variable orifice passive single control mutative damp MR damper is provided with gradual change throttling pillar and throttle orifice, during the motion of magnet piston modules, the working clearance of magnetic flow liquid flowing changes with movement position, and damping force increases from minimum value always; Be provided with permanent magnet in magnet piston modules of the present invention, the magnetic intensity of Liu Bian liquid central chamber is changed, without the need to field coil with the position of magnet piston modules.It can thus be appreciated that the present invention is simple and reasonable, achieve damping force no maximum, save a large amount of electric energy.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of of the present invention pair of bar variable orifice passive single control mutative damp MR damper.
In figure, 1-stream becomes liquid cylinder; 2-end cap module; 21-end cap body; 22-linear bearing; 23-seal arrangement; 24-bearing hole; 3-magnet piston modules; 31-piston only; 32-piston rod; 33-permanent magnet; 34-magnetic iron inhibitory coating; 35-throttle orifice; 36-gradual change throttling pillar; 41-Liu Bian liquid central chamber; 42-stream becomes the other room of liquid.
Embodiment
Below with reference to the drawings and specific embodiments, the present invention is described in further detail.
Shown in Figure 1, of the present invention pair of bar variable orifice passive single control mutative damp MR damper, comprises identical end cap module 2, the two groups of identical symmetries of structure being installed in stream change liquid cylinder 1 two ends respectively of stream change liquid cylinder 1, two groups of structures and is installed in the magnet piston modules 3 that stream becomes liquid cylinder 1 inside; It is hollow cylinder that stream becomes liquid cylinder 1; Magnet piston modules 3 can become the inner surface movement of liquid cylinder 1 along stream; End cap module 2 comprises end cap body 21, is located at the bearing hole 24 of end cap body 21 center, the seal arrangement 23 of the linear bearing 22 be installed in bearing hole 24, seal shaft bearing bore 24.
Shown in Figure 1, magnet piston modules 3 comprises piston only 31, one end be provided with piston only 31 the other end by seal arrangement 23 and linear bearing 22 reach stream become liquid cylinder 1 outside piston rod 32, be installed in the permanent magnet 33 inside piston only 31, the magnetic iron inhibitory coating 34 be installed on permanent magnet 33; Piston only 31 offers the constant throttle orifice of internal diameter 35; The gradual change throttling pillar 36 being parallel to piston rod 32 is equiped with between two groups of end cap modules 2.
Shown in Figure 1, gradual change throttling pillar 36 is that mid diameter is maximum, and two end part diameter is minimum, the tapered rod of remaining part diameter change; The internal diameter of throttle orifice 35 equals the maximum diameter of gradual change throttling pillar 36; The inner space that stream is become liquid cylinder 1 by magnet piston modules 3 is divided into Liu Bian liquid central chamber 41 and the other room 42 of stream change liquid; When magnet piston modules 3 is moved, magnetic flow liquid can flow between other room 42 mutually at Liu Bian liquid central chamber 41, stream change liquid; The diameter of piston only 31 equals to flow the internal diameter becoming liquid cylinder 1; Gap between the periphery wall of gradual change throttling pillar 36 and the inner circle wall of throttle orifice 35 constitutes the working clearance that magnetic flow liquid flows.
Claims (1)
1. pair bar variable orifice passive single control mutative damp MR damper, is characterized in that: comprise stream and become that liquid cylinder (1), two groups of structures are identical is installed in that described stream becomes the end cap module (2) at liquid cylinder (1) two ends, two groups of identical symmetries of structure are installed in described stream and become the inner magnet piston modules (3) of liquid cylinder (1) respectively; It is hollow cylinder that described stream becomes liquid cylinder (1); Described end cap module (2) comprises end cap body (21), is located at the bearing hole (24) of described end cap body (21) center, the linear bearing (22) be installed in described bearing hole (24), seal the seal arrangement (23) of described bearing hole (24); Described magnet piston modules (3) comprises piston only (31), one end is provided with described piston only (31) the other end and is reached the outside piston rod (32) of described stream change liquid cylinder (1) by described seal arrangement (23) and linear bearing (22), be installed in permanent magnet (33), the magnetic iron inhibitory coating (34) be installed on permanent magnet (33) of described piston only (31) inner side; Described piston only (31) offers the constant throttle orifice of internal diameter (35); The gradual change throttling pillar (36) being parallel to described piston rod (32) is equiped with between end cap module (2) described in two groups; Described gradual change throttling pillar (36) for mid diameter maximum, two end part diameter is minimum, remaining part diameter change tapered rod; The internal diameter of described throttle orifice (35) equals the maximum diameter of described gradual change throttling pillar (36); The inner space that described stream becomes liquid cylinder (1) is divided into Liu Bian liquid central chamber (41) to described magnet piston modules (3) and stream becomes the other room (42) of liquid; During described magnet piston modules (3) motion, magnetic flow liquid mutually can flow between described Liu Bian liquid central chamber (41), the other room (42) of stream change liquid; The diameter of described piston only (31) equals the internal diameter that described stream becomes liquid cylinder (1); Gap between the periphery wall of described gradual change throttling pillar (36) and the inner circle wall of described throttle orifice (35) constitutes the working clearance that magnetic flow liquid flows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510427375.0A CN105156570A (en) | 2015-07-20 | 2015-07-20 | Double-rod variable-orifice passive single-control variable-damping magnetorheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510427375.0A CN105156570A (en) | 2015-07-20 | 2015-07-20 | Double-rod variable-orifice passive single-control variable-damping magnetorheological damper |
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| Publication Number | Publication Date |
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| CN105156570A true CN105156570A (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510427375.0A Pending CN105156570A (en) | 2015-07-20 | 2015-07-20 | Double-rod variable-orifice passive single-control variable-damping magnetorheological damper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763446A (en) * | 2017-02-14 | 2017-05-31 | 崔葆洁 | A kind of variable reluctance MR damper |
| CN108150578A (en) * | 2017-12-01 | 2018-06-12 | 常州大学 | A kind of liquid condenser for becoming the damping of working clearance no maximum |
| CN110552986A (en) * | 2019-08-07 | 2019-12-10 | 安徽信息工程学院 | damper |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3787019A (en) * | 1971-04-06 | 1974-01-22 | Stabilus Ind Handels Gmbh | Supporting element of adjustable length |
| US3990687A (en) * | 1976-02-05 | 1976-11-09 | Curnutt Charles R | Shock absorber with controlled fluid bypass means |
| KR20020049528A (en) * | 2000-12-19 | 2002-06-26 | 류정열 | Shock absorber |
| JP2004019741A (en) * | 2002-06-14 | 2004-01-22 | Bando Chem Ind Ltd | Shock absorber using magnetic viscous fluid |
| CN101749358A (en) * | 2010-02-24 | 2010-06-23 | 谭和平 | Damping force adjustable permanent magnet type magnetic current variable damper |
| CN202545670U (en) * | 2012-02-23 | 2012-11-21 | 超卓机械科技（上海）有限公司 | Oil buffer |
| CN102817957A (en) * | 2012-09-05 | 2012-12-12 | 北京交通大学 | Self-adaption piezomagnetic magnetorheological damper |
| CN102889331A (en) * | 2012-10-19 | 2013-01-23 | 北京交通大学 | Valve control constant magnetic magnetorheological damper |
| CN203627633U (en) * | 2013-11-19 | 2014-06-04 | 苏州蓝王机床工具科技有限公司 | Adjustable hydraulic buffer |
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2015
- 2015-07-20 CN CN201510427375.0A patent/CN105156570A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3787019A (en) * | 1971-04-06 | 1974-01-22 | Stabilus Ind Handels Gmbh | Supporting element of adjustable length |
| US3990687A (en) * | 1976-02-05 | 1976-11-09 | Curnutt Charles R | Shock absorber with controlled fluid bypass means |
| KR20020049528A (en) * | 2000-12-19 | 2002-06-26 | 류정열 | Shock absorber |
| JP2004019741A (en) * | 2002-06-14 | 2004-01-22 | Bando Chem Ind Ltd | Shock absorber using magnetic viscous fluid |
| CN101749358A (en) * | 2010-02-24 | 2010-06-23 | 谭和平 | Damping force adjustable permanent magnet type magnetic current variable damper |
| CN202545670U (en) * | 2012-02-23 | 2012-11-21 | 超卓机械科技（上海）有限公司 | Oil buffer |
| CN102817957A (en) * | 2012-09-05 | 2012-12-12 | 北京交通大学 | Self-adaption piezomagnetic magnetorheological damper |
| CN102889331A (en) * | 2012-10-19 | 2013-01-23 | 北京交通大学 | Valve control constant magnetic magnetorheological damper |
| CN203627633U (en) * | 2013-11-19 | 2014-06-04 | 苏州蓝王机床工具科技有限公司 | Adjustable hydraulic buffer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763446A (en) * | 2017-02-14 | 2017-05-31 | 崔葆洁 | A kind of variable reluctance MR damper |
| CN106763446B (en) * | 2017-02-14 | 2018-10-12 | 崔葆洁 | A kind of variable reluctance MR damper |
| CN108150578A (en) * | 2017-12-01 | 2018-06-12 | 常州大学 | A kind of liquid condenser for becoming the damping of working clearance no maximum |
| CN108150578B (en) * | 2017-12-01 | 2020-03-20 | 常州大学 | Liquid damper with variable working gap and no upper limit damping |
| CN110552986A (en) * | 2019-08-07 | 2019-12-10 | 安徽信息工程学院 | damper |
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Application publication date: 20151216 |
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