CN105156559A - Single-rod variable-cylinder-body passive double-control variable-damping magnetorheological damper - Google Patents
Single-rod variable-cylinder-body passive double-control variable-damping magnetorheological damper Download PDFInfo
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- CN105156559A CN105156559A CN201510427952.6A CN201510427952A CN105156559A CN 105156559 A CN105156559 A CN 105156559A CN 201510427952 A CN201510427952 A CN 201510427952A CN 105156559 A CN105156559 A CN 105156559A
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Abstract
The invention discloses a single-rod variable-cylinder-body passive double-control variable-damping magnetorheological damper and belongs to the field of variable-damping magnetorheological fluid instruments. The magnetorheological damper comprises a gradient rheological fluid cylinder body, a left end cover module, a right end cover module, a magnet piston module, magnetorheological fluid and a working clearance. The left end cover module and the right end cover module are arranged at the two ends of the gradient rheological fluid cylinder body respectively. The magnet piston module is arranged in the gradient rheological fluid cylinder body and comprises a piston body, a piston rod, first piston magnets, second piston magnets, first piston protective layers and second piston protective layers. One end of the piston rod is provided with the piston body, and the other end of the piston rod stretches out of the gradient rheological fluid cylinder body through a bearing. The diameter of the piston body is within the range from the maximal internal diameter of the gradient rheological fluid cylinder body to the minimal internal diameter of the gradient cylinder body. The magnetorheological damper is simple and reasonable in structure, zero in current, large in damping force and free of electric energy consumption and particle sedimentation.
Description
Technical field
The present invention relates to mutative damp magnetic flow liquid instrument field, refer in particular to a kind of single pole and become cylinder body passive dual control mutative damp MR damper.
Background technique
MR damper can utilize magnetic flow liquid under magnetic fields, realize liquid and the semi-solid rheological properties that can change fast, realizes continuously adjustable controllable damping force.The MR damper of prior art is the damping force that the magnetic field utilizing field coil to produce changes the magnetic flow liquid flowed in constant operation gap.Although the MR damper of prior art achieves mutative damp, but still there is certain defect: (1) constant working clearance cause zero current condition under damping force less than normal; (2) during field coil energising, power consumption is large, easily causes precipitate suspended particles during power-off.
Summary of the invention
The technical problem that the present invention need solve is: the technical problem existed for prior art, the invention provides a kind of simple and reasonable, large damping force of zero current, without the need to consuming electric energy, mutative damp MR damper without particles settling.
In order to solve the problem, the solution that the present invention proposes is: single pole becomes cylinder body passive dual control mutative damp MR damper, and it comprises gradient current and becomes liquid cylinder, left end cap module, right end cap module, magnet piston modules, magnetic flow liquid and working clearance; Described left end cap module, described right end cap module are installed in the two ends that described gradient current becomes liquid cylinder respectively; Described magnet piston modules is installed in the inside that described gradient current becomes liquid cylinder.
Gradient current of the present invention becomes liquid cylinder into two end part internal diameter is minimum, middle part internal diameter is maximum, the hollow cylinder of remaining part internal diameter linear change; Described left end cap module comprises left end cap body, end cap first magnet be installed in described left end cap body inboard groove, the first magnetic iron inhibitory coating be installed on described end cap first magnet; Described right end cap module comprises right end cap body, the bearing hole be located on described right end cap body, the bearing be installed in described bearing hole, be installed in end cap second magnet inside described right end cap body, the second magnetic iron inhibitory coating be installed on described end cap second magnet; Described magnet piston modules comprises piston only, one end is provided with the described piston only the other end and reaches described gradient current by described bearing and become the piston rod of liquid cylinder outside, piston first magnet, piston second magnet, piston first protective layer and piston second protective layer.
Piston first magnet of the present invention, described piston second magnet are installed in described piston only arranged on left and right sides groove respectively; Described piston first protective layer, described piston second protective layer are installed on described piston first magnet, described piston second magnet respectively; The diameter of described piston only is between the maximum inner diameter and minimum diameter of described gradient current change liquid cylinder; The periphery wall of described piston only and the described gradient current gap become between liquid cylinder inner circle wall constitute 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 gradient current change liquid cylinder and the piston only that cylinder body passive dual control mutative damp MR damper is provided with internal diameter gradual change, the diameter of piston only becomes the maxima and minima diameter of liquid cylinder internal diameter between described gradient current, during the motion of magnet piston modules, working clearance is reduced to zero gradually from maximum value, and corresponding damping force increases gradually; The present invention is also provided with end cap first magnet, end cap second magnet, piston first magnet and piston second magnet, makes gradient current become liquid cylinder and is all in magnetic field, effectively prevent the sedimentation of suspended particulate in magnetic flow liquid.It can thus be appreciated that the present invention is simple and reasonable, without the need to consuming electric energy, achieving the large damping force of zero current, efficiently solving the settlement issues of suspended particulate.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram that single pole of the present invention becomes cylinder body passive dual control mutative damp MR damper.
Fig. 2 is the structural principle schematic diagram of magnet piston modules of the present invention.
In figure, 1-gradient current becomes liquid cylinder; 2-left end cap module; 21-left end cap body; 22-end cap first magnet; 23-the first magnetic iron inhibitory coating; 3-magnet piston modules; 31-piston only; 32-piston first magnet; 33-piston first protective layer; 34-piston second magnet; 35-piston second protective layer; 36-piston rod; 4-right end cap module; 41-right end cap body; 42-bearing hole; 43-bearing; 44-end cap second magnet; 45-the second magnetic iron inhibitory coating; 5-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 dual control mutative damp MR damper, comprises gradient current and becomes liquid cylinder 1, left end cap module 2, right end cap module 4, magnet piston modules 3, magnetic flow liquid 6 and working clearance 5; Left end cap module 2, right end cap module 4 are installed in the two ends that gradient current becomes liquid cylinder 1 respectively; Magnet piston modules 3 is installed in the inside that gradient current becomes liquid cylinder 1.
Shown in Fig. 1 and Fig. 2, gradient current becomes liquid cylinder 1 into two end part internal diameter is minimum, middle part internal diameter is maximum, the hollow cylinder of remaining part internal diameter linear change; Left end cap module 2 comprises left end cap body 21, end cap first magnet be installed in left end cap body 21 inboard groove, the first magnetic iron inhibitory coating 23 be installed on end cap first magnet 22; Right end cap module 4 comprises right end cap body 41, the bearing hole 42 be located on right end cap body 41, the bearing 43 be installed in bearing hole 42, be installed in end cap second magnet 44 inside right end cap body 41, the second magnetic iron inhibitory coating 45 be installed on end cap second magnet 44; Magnet piston modules 3 comprises piston only 31, one end is provided with piston only 31 the other end and reaches gradient current by bearing 43 and become the piston rod 36 of liquid cylinder 1 outside, piston first magnet 32, piston second magnet 34, piston first protective layer 33 and piston second protective layer 35; Piston first magnet 32, piston second magnet 34 are installed in piston only 31 arranged on left and right sides groove respectively; Piston first protective layer 33, piston second protective layer 35 are installed on piston first magnet 32, piston second magnet 34 respectively.
The diameter of piston only 31 is between the maximum inner diameter and minimum diameter of gradient current change liquid cylinder 1; The periphery wall of piston only 31 and the gradient current gap become between liquid cylinder 1 inner circle wall constitutes the working clearance 5 that magnetic flow liquid 6 flows; When magnet piston modules 3 is moved, the working clearance 5 is reduced to zero gradually from maximum value, and corresponding damping force increases gradually from minimum value.
Claims (1)
1. single pole becomes cylinder body passive dual control mutative damp MR damper, it is characterized in that: comprise gradient current and become liquid cylinder (1), left end cap module (2), right end cap module (4), magnet piston modules (3), magnetic flow liquid (6) and working clearance (5); Described left end cap module (2), described right end cap module (4) are installed in the two ends that described gradient current becomes liquid cylinder (1) respectively; Described magnet piston modules (3) is installed in the inside that described gradient current becomes liquid cylinder (1); Described gradient current becomes liquid cylinder (1) into two end part internal diameter is minimum, middle part internal diameter is maximum, the hollow cylinder of remaining part internal diameter linear change; Described left end cap module (2) comprises left end cap body (21), end cap first magnet be installed in described left end cap body (21) inboard groove, the first magnetic iron inhibitory coating (23) be installed on described end cap first magnet (22); Described right end cap module (4) comprises right end cap body (41), the bearing hole (42) be located on described right end cap body (41), the bearing (43) be installed in described bearing hole (42), be installed in described right end cap body (41) inner side end cap second magnet (44), the second magnetic iron inhibitory coating (45) be installed on described end cap second magnet (44); Described magnet piston modules (3) comprises piston only (31), one end is provided with described piston only (31) the other end and reaches the outside piston rod (36) of described gradient current change liquid cylinder (1), piston first magnet (32), piston second magnet (34), piston first protective layer (33) and piston second protective layer (35) by described bearing (43); Described piston first magnet (32), described piston second magnet (34) are installed in described piston only (31) arranged on left and right sides groove respectively; Described piston first protective layer (33), described piston second protective layer (35) are installed on described piston first magnet (32), described piston second magnet (34) respectively; The diameter of described piston only (31) is between the maximum inner diameter and minimum diameter of described gradient current change liquid cylinder (1); The periphery wall of described piston only (31) and the described gradient current gap become between liquid cylinder (1) inner circle wall constitutes the working clearance (5) that described magnetic flow liquid (6) flows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510427952.6A CN105156559A (en) | 2015-07-20 | 2015-07-20 | Single-rod variable-cylinder-body passive double-control variable-damping magnetorheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510427952.6A CN105156559A (en) | 2015-07-20 | 2015-07-20 | Single-rod variable-cylinder-body passive double-control variable-damping magnetorheological damper |
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| Publication Number | Publication Date |
|---|---|
| CN105156559A true CN105156559A (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510427952.6A Pending CN105156559A (en) | 2015-07-20 | 2015-07-20 | Single-rod variable-cylinder-body passive double-control variable-damping magnetorheological damper |
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Citations (7)
| 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 |
| CN2716585Y (en) * | 2004-07-02 | 2005-08-10 | 北京工业大学 | Clearance variable viscous damper |
| US20090223762A1 (en) * | 2005-03-14 | 2009-09-10 | Koganei Corporation | Shock Absorber |
| CN102287479A (en) * | 2011-09-01 | 2011-12-21 | 谢宁 | Double-rod magnetorheological grease damper |
| CN102297229A (en) * | 2011-08-18 | 2011-12-28 | 谢宁 | Double-outstretch pole magneto-rheological grease damper |
| DE102010030542B4 (en) * | 2010-06-25 | 2014-08-28 | Thomas Ossadnik | shock absorber |
| CN104541083A (en) * | 2012-06-21 | 2015-04-22 | Smc株式会社 | Two-rod type shock absorber |
-
2015
- 2015-07-20 CN CN201510427952.6A patent/CN105156559A/en active Pending
Patent Citations (7)
| 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 |
| CN2716585Y (en) * | 2004-07-02 | 2005-08-10 | 北京工业大学 | Clearance variable viscous damper |
| US20090223762A1 (en) * | 2005-03-14 | 2009-09-10 | Koganei Corporation | Shock Absorber |
| DE102010030542B4 (en) * | 2010-06-25 | 2014-08-28 | Thomas Ossadnik | shock absorber |
| CN102297229A (en) * | 2011-08-18 | 2011-12-28 | 谢宁 | Double-outstretch pole magneto-rheological grease damper |
| CN102287479A (en) * | 2011-09-01 | 2011-12-21 | 谢宁 | Double-rod magnetorheological grease damper |
| CN104541083A (en) * | 2012-06-21 | 2015-04-22 | Smc株式会社 | Two-rod type shock absorber |
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Application publication date: 20151216 |