CN105156574A - Single-rod variable-cylinder-body passive single-control variable-damping magnetorheological damper - Google Patents
Single-rod variable-cylinder-body passive single-control variable-damping magnetorheological damper Download PDFInfo
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- CN105156574A CN105156574A CN201510427809.7A CN201510427809A CN105156574A CN 105156574 A CN105156574 A CN 105156574A CN 201510427809 A CN201510427809 A CN 201510427809A CN 105156574 A CN105156574 A CN 105156574A
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Abstract
The invention discloses a single-rod variable-cylinder-body passive single-control variable-damping magnetorheological damper and belongs to the field of variable-damping magnetorheological fluid vibration reduction instruments. The magnetorheological damper comprises a rheological fluid gradient cylinder body, a left end cover module arranged at the left end of the rheological fluid gradient cylinder body, a right end cover module arranged at the right end of the rheological fluid gradient cylinder body, a piston module arranged in the rheological fluid gradient cylinder body, a working clearance and magnetorheological fluid. The left end cover module comprises a left end cover body, end cover magnets and end cover protective layers. The piston module comprises a piston body, a piston rod, piston magnets and piston protective layers. The rheological fluid gradient cylinder body is a hollow cylinder, the internal diameter of the middle of the rheological fluid gradient cylinder body is maximal, the internal diameters of the two ends of the rheological fluid gradient cylinder body are minimal, and the internal diameters of the other portions of the rheological fluid gradient cylinder body linearly change. The diameter of the piston body is equal to the minimal internal diameter of the rheological fluid gradient cylinder body. The magnetorheological damper is simple and reasonable in structure and stable in magnetorheological fluid performance, and damping force is remarkably increased along with the working clearance.
Description
Technical field
The present invention relates to mutative damp magnetic current flowing deformation vibration-damping instrument field, refer in particular to a kind of single pole and become cylinder body passive single control mutative damp MR damper.
Background technique
MR damper is a kind of half active damping instrument, is widely used in the structural vibration reduction control fields such as automobile, bridge, building.The MR damper adopting magnetic flow liquid to make has features such as exerting oneself greatly, volume is little, response is fast, damping force is adjustable.Existing MR damper working principle is substantially identical, and the magnetic field namely utilizing field coil to produce changes the shear yield strength of the magnetic flow liquid flowed in constant operation gap, realizes the control of damping force.Existing MR damper achieves mutative damp, but still there is certain defect: (1) adopts the constant working clearance, and under cut-out energy state, damping force is too little; (2) field coil makes damper structure complicated, and during energising, power consumption is large, and zero current causes again the precipitate suspended particles in magnetic flow liquid.
Summary of the invention
The technical problem that the present invention need solve is: for technical problems such as particles settlings in the less than normal and magnetic flow liquid of damping force that prior art exists, the invention provides a kind of simple and reasonable, damping force with the rheological damper that the working clearance enlarges markedly, magnetorheological fluid performance is stable.
In order to solve the problem, the solution that the present invention proposes is: single pole becomes cylinder body passive single control mutative damp MR damper, it comprise stream become liquid gradient cylinder body, be installed in described stream become liquid gradient cylinder body left end left end cap module, be installed in described stream become liquid gradient cylinder body right-hand member right end cap module, be installed in described stream and become the piston modules of liquid gradient cylinder interior, working clearance, magnetic flow liquid.
Stream of the present invention become liquid gradient cylinder body into middle part internal diameter maximum, two end part internal diameter is minimum, the hollow cylinder of remaining part internal diameter linear change; Described left end cap module comprises left end cap body, the end cap magnet be installed in described left end cap body recess, be installed in end cap protective layer on the right side of described end cap magnet; Described right end cap module comprises right end cap body, is located at the bearing hole at described right end cap body central place, the linear bearing be installed in described bearing hole, be installed in the seal arrangement sealing described bearing hole on the left of described linear bearing.
Piston modules of the present invention comprises piston only, one end is provided with the described piston only the other end and reaches described stream by described seal arrangement and linear bearing and become the piston rod of liquid gradient cylinder body outside, the piston magnet be installed in described piston only left groove, be installed in piston protective layer on the left of described piston magnet.
The diameter of piston only of the present invention equals the minimum diameter that described stream becomes liquid gradient cylinder body; The inner space that described stream is become liquid gradient cylinder body by described piston modules is divided into the stream change left room of liquid and Liu Bian liquid right ventricle; The described magnetic flow liquid becoming the left room of liquid at described stream is in permanent-magnetic field; Gap between the inner circle wall that the periphery wall of described piston only and described stream become liquid gradient cylinder body forms the working clearance that described magnetic flow liquid flows.
Compared with prior art, the invention has the advantages that: single pole of the present invention becomes cylinder body passive single control mutative damp MR damper and is provided with stream change liquid gradient cylinder body and piston only, during piston movement, the working clearance of magnetic flow liquid is reduced to zero gradually from certain definite value, and corresponding damping force is increased to infinity gradually; The present invention is also provided with end cap magnet and piston magnet, prevents particles settling.It can thus be appreciated that the present invention is simple and reasonable, achieve and become working clearance large damping force, improve the stability of magnetic flow liquid.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram that single pole of the present invention becomes cylinder body passive single control mutative damp MR damper.
In figure, 1-stream becomes liquid gradient cylinder body; 2-left end cap module; 21-left end cap body; 22-end cap magnet; 23-end cap protective layer; 3-right end cap module; 31-right end cap body; 32-seal arrangement; 33-bearing hole; 34-linear bearing; 4-piston modules; 41-piston only; 42-piston rod; 43-piston magnet; 44-piston protective layer; The left room of 51-magnetic flow liquid; 52-magnetic flow liquid right ventricle; 53-working clearance; 6-magnetic flow liquid.
Embodiment
Below with reference to the drawings and specific embodiments, the present invention is described in further detail.
Shown in Figure 1, single pole of the present invention becomes cylinder body passive single control mutative damp MR damper, comprise stream become liquid gradient cylinder body 1, be installed in stream become liquid gradient cylinder body 1 left end left end cap module 2, be installed in stream become liquid gradient cylinder body 1 right-hand member right end cap module 3, be installed in stream and become the piston modules 4 of liquid gradient cylinder body 1 inside, working clearance 53, magnetic flow liquid 6.
Shown in Figure 1, stream become liquid gradient cylinder body 1 into middle part internal diameter maximum, two end part internal diameter is minimum, the hollow cylinder of remaining part internal diameter linear change; Left end cap module 2 comprises left end cap body 21, the end cap magnet 22 be installed in left end cap body 1 groove, be installed in end cap protective layer 23 on the right side of end cap magnet 22; Right end cap module 3 comprises right end cap body 31, is located at the bearing hole 33 of right end cap body 31 center, the linear bearing 34 be installed in bearing hole 33, be installed in the seal arrangement 32 of seal shaft bearing bore 33 on the left of linear bearing 34; Piston modules 4 comprises piston only 41, one end is provided with piston only 41 the other end and reaches stream by seal arrangement 32 and linear bearing 34 and become the piston rod 42 of liquid gradient cylinder body 1 outside, the piston magnet 43 be installed in piston only 41 left groove, be installed in piston protective layer 44 on the left of piston magnet 43.
Shown in Figure 1, the diameter of piston only 41 equals to flow the minimum diameter becoming liquid gradient cylinder body 1; The inner space that stream is become liquid gradient cylinder body 1 by piston modules 4 is divided into the stream change left room 51 of liquid and Liu Bian liquid right ventricle 52; The magnetic flow liquid 6 that stream becomes in the left room 51 of liquid is in permanent-magnetic field; The periphery wall of piston only 41 and the gap of flowing between the inner circle wall becoming liquid gradient cylinder body 1 form the working clearance 53 that magnetic flow liquid 6 flows; When piston modules 4 is moved to the left or right by middle part, the working clearance 53 is decreased to zero gradually, and damping force is significantly increased to infinity; When piston modules 4 is moved to middle part by left part or right part, the working clearance 53 increases gradually, and damping force is decreased to minimum value gradually.
Claims (1)
1. single pole becomes cylinder body passive single control mutative damp MR damper, it is characterized in that: comprise stream become liquid gradient cylinder body (1), be installed in described stream become liquid gradient cylinder body (1) left end left end cap module (2), be installed in described stream become liquid gradient cylinder body (1) right-hand member right end cap module (3), be installed in described stream and become the inner piston modules (4) of liquid gradient cylinder body (1), working clearance (53) and magnetic flow liquid (6); Described stream become liquid gradient cylinder body (1) into middle part internal diameter maximum, two end part internal diameter is minimum, the hollow cylinder of remaining part internal diameter linear change; Described left end cap module (2) comprises left end cap body (21), the end cap magnet (22) be installed in described left end cap body (1) groove, be installed in described end cap magnet (22) right side end cap protective layer (23); Described right end cap module (3) comprises right end cap body (31), is located at the bearing hole (33) of described right end cap body (31) center, the linear bearing (34) be installed in described bearing hole (33), be installed in the seal arrangement (32) of described linear bearing (34) the left side described bearing hole of sealing (33); Described piston modules (4) comprises piston only (41), one end is provided with described piston only (41) the other end and reaches described stream by described seal arrangement (32) and linear bearing (34) and become the outside piston rod (42) of liquid gradient cylinder body (1), the piston magnet (43) be installed in described piston only (41) left groove, be installed in the piston protective layer (44) in described piston magnet (43) left side; The diameter of described piston only (41) equals the minimum diameter that described stream becomes liquid gradient cylinder body (1); The inner space that described stream becomes liquid gradient cylinder body (1) is divided into stream and becomes the left room of liquid (51) and Liu Bian liquid right ventricle (52) by described piston modules (4); The magnetic flow liquid (6) that described stream becomes in the left room of liquid (51) is in permanent-magnetic field; The periphery wall of described piston only (41) and described gap of flowing between the inner circle wall becoming liquid gradient cylinder body (1) form the working clearance (53) that described magnetic flow liquid (6) flows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510427809.7A CN105156574A (en) | 2015-07-20 | 2015-07-20 | Single-rod variable-cylinder-body passive single-control variable-damping magnetorheological damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510427809.7A CN105156574A (en) | 2015-07-20 | 2015-07-20 | Single-rod variable-cylinder-body passive single-control variable-damping magnetorheological damper |
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| CN105156574A true CN105156574A (en) | 2015-12-16 |
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| CN201510427809.7A Pending CN105156574A (en) | 2015-07-20 | 2015-07-20 | Single-rod variable-cylinder-body passive single-control variable-damping magnetorheological damper |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119597A (en) * | 2017-12-15 | 2018-06-05 | 常州大学 | A kind of intelligent vibration damper available for resonant belt vibration isolation |
| CN108374862A (en) * | 2018-02-14 | 2018-08-07 | 重庆恩光科技有限公司 | Energy saving and environment friendly single-stage variable damping buffer |
| CN108385993A (en) * | 2018-02-14 | 2018-08-10 | 重庆交通大学 | Junk prevention for building damps catching device |
| CN108386479A (en) * | 2018-02-14 | 2018-08-10 | 重庆交通大学 | Damper for building anti-fall catching device |
| CN108397508A (en) * | 2018-02-14 | 2018-08-14 | 重庆恩光科技有限公司 | Energy saving and environment friendly magnetorheological fluid twin-stage variable damping device |
| CN108396666A (en) * | 2018-02-14 | 2018-08-14 | 重庆恩光科技有限公司 | Slope treatment security protection system |
| CN109114154A (en) * | 2018-09-28 | 2019-01-01 | 常州大学 | A kind of metallic combination formula vibration isolator of rigidity independently of damping |
| CN113007262A (en) * | 2021-02-06 | 2021-06-22 | 广西科技大学 | Variable gap order-changing type magneto-rheological damper |
| CN113431863A (en) * | 2021-04-22 | 2021-09-24 | 同济大学 | Damping self-adaptive tuning magnetorheological damper |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260031A (en) * | 1997-08-04 | 2000-07-12 | 劳德公司 | Magnetroheological fluid device exhibiting settling stability |
| KR20020045826A (en) * | 2000-12-11 | 2002-06-20 | 류정열 | Shock absorber for automobiles |
| KR20080051263A (en) * | 2006-12-05 | 2008-06-11 | 현대자동차주식회사 | Damping force s/abs which is the possibility of being variable |
| JP2012193755A (en) * | 2011-03-15 | 2012-10-11 | Kurimoto Ltd | Seal structure for rod |
| CN102889331A (en) * | 2012-10-19 | 2013-01-23 | 北京交通大学 | Valve control constant magnetic magnetorheological damper |
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2015
- 2015-07-20 CN CN201510427809.7A patent/CN105156574A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260031A (en) * | 1997-08-04 | 2000-07-12 | 劳德公司 | Magnetroheological fluid device exhibiting settling stability |
| KR20020045826A (en) * | 2000-12-11 | 2002-06-20 | 류정열 | Shock absorber for automobiles |
| KR20080051263A (en) * | 2006-12-05 | 2008-06-11 | 현대자동차주식회사 | Damping force s/abs which is the possibility of being variable |
| JP2012193755A (en) * | 2011-03-15 | 2012-10-11 | Kurimoto Ltd | Seal structure for rod |
| CN102889331A (en) * | 2012-10-19 | 2013-01-23 | 北京交通大学 | Valve control constant magnetic magnetorheological damper |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119597A (en) * | 2017-12-15 | 2018-06-05 | 常州大学 | A kind of intelligent vibration damper available for resonant belt vibration isolation |
| CN108374862A (en) * | 2018-02-14 | 2018-08-07 | 重庆恩光科技有限公司 | Energy saving and environment friendly single-stage variable damping buffer |
| CN108385993A (en) * | 2018-02-14 | 2018-08-10 | 重庆交通大学 | Junk prevention for building damps catching device |
| CN108386479A (en) * | 2018-02-14 | 2018-08-10 | 重庆交通大学 | Damper for building anti-fall catching device |
| CN108397508A (en) * | 2018-02-14 | 2018-08-14 | 重庆恩光科技有限公司 | Energy saving and environment friendly magnetorheological fluid twin-stage variable damping device |
| CN108396666A (en) * | 2018-02-14 | 2018-08-14 | 重庆恩光科技有限公司 | Slope treatment security protection system |
| CN109114154A (en) * | 2018-09-28 | 2019-01-01 | 常州大学 | A kind of metallic combination formula vibration isolator of rigidity independently of damping |
| CN109114154B (en) * | 2018-09-28 | 2020-07-07 | 常州大学 | Metal combined vibration isolator with rigidity independent of damping |
| CN113007262A (en) * | 2021-02-06 | 2021-06-22 | 广西科技大学 | Variable gap order-changing type magneto-rheological damper |
| CN113431863A (en) * | 2021-04-22 | 2021-09-24 | 同济大学 | Damping self-adaptive tuning magnetorheological damper |
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| PB01 | Publication | ||
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Application publication date: 20151216 |