CN105156560A - Double-rod variable-orifice passive double-control variable-damping magnetorheological damper - Google Patents
Double-rod variable-orifice passive double-control variable-damping magnetorheological damper Download PDFInfo
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- CN105156560A CN105156560A CN201510428111.7A CN201510428111A CN105156560A CN 105156560 A CN105156560 A CN 105156560A CN 201510428111 A CN201510428111 A CN 201510428111A CN 105156560 A CN105156560 A CN 105156560A
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Abstract
The invention discloses a double-rod variable-orifice passive double-control variable-damping magnetorheological damper and belongs to the field of variable-damping magnetorheological fluid instruments. The magnetorheological damper comprises a working cylinder body, two end cover modules, two piston modules, a gradually-changing throttling column and a working clearance. The two end cover modules are the same in structure and are arranged at the two ends of the working cylinder body respectively. The two piston modules are the same in structure and are symmetrically arranged in the working cylinder body. The working cylinder body is a hollow cylinder. The piston modules comprise pistons, piston rods, piston magnets arranged on the side faces of the pistons, and piston protective layers arranged on the side faces of the piston magnets. The diameters of the pistons are equal to the internal diameter of the working cylinder body, and orifices are formed in the pistons. The internal diameters of the orifices are within the range from the maximal value of the diameter of the gradually-changing throttling column to the minimal value of the diameter of the gradually-changing throttling column. The magnetorheological damper is reasonable in structure, zero in current, adjustable in damping and free of suspended particle sedimentation.
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 dual control mutative damp MR damper.
Background technique
MR damper utilizes magnetic flow liquid under magnetic fields, realize liquid and the semi-solid rheological properties that can change fast, realizes the intelligent vibration isolator that damping force is controlled.In prior art, the basic principle of MR damper 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 non-adjustable; (2) easily precipitate suspended particles is caused during field coil power-off.
Summary of the invention
The technical problem that the present invention need solve is: the technical problems such as zero current damping is non-adjustable existed for prior art, the invention provides a kind of rational in infrastructure, zero current damping is adjustable, without the MR damper of precipitate suspended particles.
In order to solve the problem, the solution that the present invention proposes is: two bar variable orifice passive dual control mutative damp MR damper, and it comprises identical end cap module, the two groups of identical symmetries of structure being installed in described working cylinder two ends respectively of working cylinder, two groups of structures and is installed in the piston modules of described working cylinder inside, gradual change throttling pillar and working clearance; Described working cylinder is hollow cylinder; Described end cap module comprises end cap, is opened in the bearing hole at described end cap central place, the bearing be installed in described bearing hole, be installed in the end cap magnet inside described end cap, the end cap protective layer be installed on described end cap magnet.
Described piston modules of the present invention comprises piston, piston rod, is installed in the piston magnet of described piston side, is installed in the piston protective layer of described piston magnet side; The diameter of described piston equals the internal diameter of described working cylinder, which is provided with throttle orifice; Described piston rod one end is equiped with described piston, and the other end by described end cap protective layer, end cap magnet and bearing, and reaches the outside of described working cylinder; Described gradual change throttling pillar is the conically shaped body that mid diameter is maximum, two end part diameter is minimum, and its two ends are installed in end cap module described in two groups respectively, by described throttle orifice in the middle part of it.
The internal diameter of described throttle orifice of the present invention is between the maxima and minima of described gradual change throttling pillar diameter; 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; Described working cylinder is divided into stream and becomes the left room of liquid, Liu Bian liquid central chamber and Liu Bian liquid right ventricle by described piston modules; Piston modules described in two groups along described working cylinder internal surface slide time, the working clearance is increased to certain definite value gradually from zero.
Compared with prior art, the invention has the advantages that: of the present invention pair of bar variable orifice passive dual control mutative damp MR damper is provided with gradual change throttling pillar and throttling pillar, during piston modules motion, the working clearance changes with the position of piston modules; The present invention is also provided with end cap magnet and piston magnet, effectively prevents the sedimentation of suspended particulate.It can thus be appreciated that the present invention is simple and reasonable, it is adjustable to achieve zero current damping, add the stability of magnetic flow liquid.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of of the present invention pair of bar variable orifice passive dual control mutative damp MR damper.
Fig. 2 is the structural principle schematic diagram of piston modules of the present invention.
In figure, 1-working cylinder; 2-end cap module; 21-end cap; 22-end cap magnet; 23-end cap protective layer; 24-bearing hole; 25-bearing; 3-piston modules; 31-piston; 32-piston rod; 33-piston magnet; 34-piston protective layer; 35-throttle orifice; 4-gradual change throttling pillar; 51-Liu Bian liquid central chamber; 52-stream becomes the left room of liquid; 53-Liu Bian liquid right ventricle; 54-working clearance.
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 dual control mutative damp MR damper, comprises identical end cap module 2, the two groups of identical symmetries of structure being installed in working cylinder 1 two ends respectively of working cylinder 1, two groups of structures and is installed in the piston modules 3 of working cylinder 1 inside, gradual change throttling pillar 4 and working clearance 54; Working cylinder 1 is hollow cylinder; End cap module 2 comprises end cap 21, is opened in the bearing hole 24 of end cap 21 center, the bearing 25 be installed in bearing hole 24, be installed in the end cap magnet 22 inside end cap 21, the end cap protective layer 23 be installed on end cap magnet 22.
Shown in Fig. 1 and Fig. 2, piston modules 3 comprises piston 31, piston rod 32, is installed in the piston magnet 32 of piston side, is installed in the piston protective layer 34 of piston magnet 32 side; The diameter of piston 31 equals the internal diameter of working cylinder 1, which is provided with throttle orifice 35; Piston rod 32 one end is equiped with piston, and the other end by end cap protective layer 23, end cap magnet 22 and bearing 25, and reaches the outside of working cylinder 1; Gradual change throttling pillar 4 is the conically shaped body that mid diameter is maximum, two end part diameter is minimum, and its two ends are installed in two groups of end cap modules 2 respectively, by throttle orifice 35 in the middle part of it.
The internal diameter of throttle orifice 35 is between the maxima and minima of gradual change throttling pillar 4 diameter; Gap between the periphery wall of gradual change throttling pillar 4 and the inner circle wall of throttle orifice 35 constitutes the working clearance 54 that magnetic flow liquid flows; Working cylinder 1 is divided into stream and becomes the left room 52 of liquid, Liu Bian liquid central chamber 51 and Liu Bian liquid right ventricle 53 by piston modules 3; When two groups of piston modules 3 are slided along the internal surface of working cylinder 1, the working clearance 54 is increased to certain definite value gradually from zero.
Claims (1)
1. pair bar variable orifice passive dual control mutative damp MR damper, is characterized in that: comprise that working cylinder (1), two groups of structures are identically installed in the end cap module (2) at described working cylinder (1) two ends respectively, two groups of identical symmetries of structure are installed in the inner piston modules (3) of described working cylinder (1), gradual change throttling pillar (4) and working clearance (54); Described working cylinder (1) is hollow cylinder; Described end cap module (2) comprises end cap (21), is opened in the bearing hole (24) of described end cap (21) center, the bearing (25) be installed in described bearing hole (24), be installed in end cap magnet (22), the end cap protective layer (23) be installed on described end cap magnet (22) of described end cap (21) inner side; Described piston modules (3) comprises piston (31), piston rod (32), is installed in the piston magnet (32) of described piston side, is installed in the piston protective layer (34) of described piston magnet (32) side; The diameter of described piston (31) equals the internal diameter of described working cylinder (1), which is provided with throttle orifice (35); Described piston rod (32) one end is equiped with described piston, the other end by described end cap protective layer (23), end cap magnet (22) and bearing (25), and reaches the outside of described working cylinder (1); Described gradual change throttling pillar (4) is the conically shaped body that mid diameter is maximum, two end part diameter is minimum, and its two ends are installed in end cap module (2) described in two groups respectively, by described throttle orifice (35) in the middle part of it; The internal diameter of described throttle orifice (35) is between the maxima and minima of described gradual change throttling pillar (4) diameter; Gap between the periphery wall of described gradual change throttling pillar (4) and the inner circle wall of described throttle orifice (35) constitutes the working clearance (54) that magnetic flow liquid flows; Described working cylinder (1) is divided into stream and becomes the left room of liquid (52), Liu Bian liquid central chamber (51) and Liu Bian liquid right ventricle (53) by described piston modules (3); Piston modules (3) described in two groups along described working cylinder (1) internal surface slide time, the working clearance (54) is increased to certain definite value gradually from zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510428111.7A CN105156560A (en) | 2015-07-20 | 2015-07-20 | Double-rod variable-orifice passive double-control variable-damping magnetorheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510428111.7A CN105156560A (en) | 2015-07-20 | 2015-07-20 | Double-rod variable-orifice passive double-control variable-damping magnetorheological damper |
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| Publication Number | Publication Date |
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| CN105156560A true CN105156560A (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510428111.7A Pending CN105156560A (en) | 2015-07-20 | 2015-07-20 | Double-rod variable-orifice passive double-control variable-damping magnetorheological damper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090703A (en) * | 2021-03-02 | 2021-07-09 | 嘉兴学院 | Automobile collision magnetorheological grease buffer device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020049528A (en) * | 2000-12-19 | 2002-06-26 | 류정열 | Shock absorber |
| CN102141108A (en) * | 2011-03-11 | 2011-08-03 | 王靖 | External electromagnet retractable type magnetorheological damper |
| CN102889332A (en) * | 2012-10-25 | 2013-01-23 | 株洲时代新材料科技股份有限公司 | Magnetorheological damper for automotive suspension |
| CN203051609U (en) * | 2013-01-29 | 2013-07-10 | 谭晓婧 | Combined cylinder double-outlet-rod magneto-rheological damper |
-
2015
- 2015-07-20 CN CN201510428111.7A patent/CN105156560A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020049528A (en) * | 2000-12-19 | 2002-06-26 | 류정열 | Shock absorber |
| CN102141108A (en) * | 2011-03-11 | 2011-08-03 | 王靖 | External electromagnet retractable type magnetorheological damper |
| CN102889332A (en) * | 2012-10-25 | 2013-01-23 | 株洲时代新材料科技股份有限公司 | Magnetorheological damper for automotive suspension |
| CN203051609U (en) * | 2013-01-29 | 2013-07-10 | 谭晓婧 | Combined cylinder double-outlet-rod magneto-rheological damper |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090703A (en) * | 2021-03-02 | 2021-07-09 | 嘉兴学院 | Automobile collision magnetorheological grease buffer device |
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Application publication date: 20151216 |
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