CN100363643C - Multistep assemblied anti-settle magnetic rheological damper - Google Patents
Multistep assemblied anti-settle magnetic rheological damper Download PDFInfo
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- CN100363643C CN100363643C CNB2006100144022A CN200610014402A CN100363643C CN 100363643 C CN100363643 C CN 100363643C CN B2006100144022 A CNB2006100144022 A CN B2006100144022A CN 200610014402 A CN200610014402 A CN 200610014402A CN 100363643 C CN100363643 C CN 100363643C
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Abstract
The present invention discloses a multistage installation anti-settling magnetic rheological damper. The present invention comprises a cylinder, an end cover, a piston and a piston rod, wherein a throttle passage is arranged between the inner lateral wall of the cylinder and the outer lateral wall of the piston; the piston comprises many groups of magnetism conducting piston plates sheathed on the piston rod, and each group of the magnetism conducting piston plates is composed of two magnetism conducting piston plates; a permanent magnetism piston plate sheathed on the piston rod is arranged between the two magnetism conducting piston plates of each group of the magnetism conducting piston plates; a magnetism conducting sleeve sheathed on the piston rod is arranged between two adjacent magnetism conducting piston plates of adjacent groups; the outside of the magnetism conducting sleeve is wound with an exciting coil. The present invention has the advantages of convenient disassembly and repeatable use; when a power supply fails or an energy source is insufficient, the permanent magnetism piston plate can also replace an electromagnetism circuit to continuously work, the energy source can be saved, and the damping force is increased; in a non-operating state, the permanent magnetism piston plate can prevent the agglomeration of magnetic rheological fluid particles through a fixed magnetic field and prevent the static settlement of magnetic rheological fluid.
Description
Technical field
The present invention relates to damping device, the invention particularly relates to a kind of multistep assemblied anti-settle magnetic rheological damper, the damper that is proposed is a kind of well behaved passive energy dissipation device, can generally be applicable in automobile, machinery, aviation, bridge and the civil engineering structure.
Background technique
MR damper is to utilize the passive energy dissipation device of magnetic flow liquid as working medium.Magnetic flow liquid be by tiny soft magnetic particles be scattered in form in the lower carrier fluid of permeability can change suspension liquid with externally-applied magnetic field with controllable rheology characteristic; Under the action of a magnetic field, magnetic flow liquid can realize in moment (10ms) by liquid state to the semi-solid reversible variation of Bingham, remove magnetic field after, can become the Newtonian fluid of good fluidity again again.Utilize this rheological properties, in MR damper cylinder barrel inboard and piston space throttling passage is set, when damper piston and cylinder body relative movement, magnetic flow liquid in then can extrusion cylinder, it is flow through from throttling passage, as throttling passage being applied the action of a magnetic field of vertical fluid moving direction, then the magnetic-particle in the passage is just arranged along the magnetic direction chaining, thereby causes the damping force of piston motion to increase.By regulating magnetic intensity, can change the yield stress of magnetic flow liquid, thereby regulate the size of exerting oneself of damper.The MR damper of domestic and international market all is that piston and piston rod are designed to one mostly at present, and controllable damping force also only depends on electric current adjusting magnetic field to realize, therefore had relatively high expectations in galvanic current stream source, traditional in addition single current control mode also is difficult to effectively prevent the settlement issues of magnetic flow liquid.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of multistep assemblied anti-settle magnetic rheological damper is provided, in the time of in working order, but this damper energy saving improves damping force, when off working state, can prevent the standing sedimentation of magnetic flow liquid.
Another object of the present invention is to provide that a kind of structural design is simple, processing, convenient disassembly, reusable, can adopt the permeability magnetic material of different size to mix the multistep assemblied anti-settle magnetic rheological damper that uses respectively.
For achieving the above object, multistep assemblied anti-settle magnetic rheological damper of the present invention, it comprises cylinder barrel, end cap, piston, piston rod, between described cylinder barrel madial wall and described piston outer side wall, be provided with throttling passage, described piston comprises the every group of many groups magnetic conduction piston plate be made up of two magnetic conduction piston plates that is enclosed within on the described piston rod, be provided with a permanent magnetic piston dish that is enclosed within on the described piston rod between two magnetic conduction piston plates of every group of magnetic conduction piston plate, be provided with a magnetic conduction sleeve that is enclosed within on the described piston rod between two adjacent magnetic conduction piston plates of adjacent group, outside described magnetic conduction sleeve, be wound with field coil.
Compared with prior art, the present invention has following advantage:
1, distributes and trend according to magnetic circuit, piston is split as each separate units such as piston rod, magnetic conduction sleeve, magnetic conduction piston plate, convenient disassembly, the processing simplicity of design, reusable, can adopt the permeability magnetic material of different size to mix use respectively, to satisfy the needs that magnetic circuit is arranged.
2, add the permanent magnetic piston dish in piston body, improve the damper value of exerting oneself, when power-fail or energy deficiency, the permanent magnetic piston dish also can replace electromagnetic circuit to work on, but energy saving improves damping force.
3, in off working state, the permanent magnetic piston dish can stop the cohesion of magnetic flow liquid particle by fixed magnetic field, prevents the standing sedimentation of magnetic flow liquid.
Description of drawings
Fig. 1 is the structural representation of multistep assemblied anti-settle magnetic rheological damper;
Fig. 2 is the fragmentary, perspective view of multistep assemblied anti-settle magnetic rheological damper;
Fig. 3 is the permanent magnetic piston dish schematic representation that magnetizes.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is done to describe in detail.
Multistep assemblied anti-settle magnetic rheological damper as Figure 1-3, it comprises cylinder barrel 3, end cap 4, piston, piston rod 2, between described cylinder barrel 3 madial walls and described piston outer side wall, be provided with throttling passage 7, described piston comprises the every group of many groups magnetic conduction piston plate be made up of two magnetic conduction piston plates 5 that is enclosed within on the described piston rod 2, be provided with a permanent magnetic piston dish 6 that is enclosed within on the described piston rod between two magnetic conduction piston plates of every group of magnetic conduction piston plate, its residual magnetic flux density is preferably 5000-8000 Gauss, in order to increase its shear strength, should there be high-strength coating on its surface, can be zinc, coating such as nickel.Be provided with a magnetic conduction sleeve 8 that is enclosed within on the described piston rod between the adjacent magnetic conduction piston plate of adjacent group, outside described magnetic conduction sleeve, be wound with field coil 9.Can assemble at described piston rod two ends in use and be full of magnetic flow liquid 10 in earrings 1, the cylinder barrel.
Working principle: during use, the reciprocal external force at damper two ends promotes piston rod 2, magnetic flow liquid 10 in the chamber, cylinder barrel 3 both sides just can pass through throttling passage 7, when the throttling passage zone applies the magnetic field vertical with fluid flow direction, magnetic flow liquid 10 semi-solid preparations, magnetic-particle are along the magnetic direction chaining, because the existence of permanent magnetic piston dish 6 among the present invention, improve damping force, reduced the span of electric current; In addition under off working state, because permanent magnetic piston dish 6 can provide a fixed magnetic field, make that magnetic-particle continues to arrange along the magnetic direction chaining in the magnetic flow liquid 10, the settlement issues that has stoped magnetic flow liquid effectively, Figure 3 shows that the schematic representation that magnetizes of permanent magnetic piston dish, magnetizing direction is for radially, can be according to actual needs, N, the S that outer edge is set respectively to.
Claims (4)
1. multistep assemblied anti-settle magnetic rheological damper, it comprises cylinder barrel, end cap, piston, piston rod, between described cylinder barrel madial wall and described piston outer side wall, be provided with throttling passage, it is characterized in that: described piston comprises the every group of many groups magnetic conduction piston plate be made up of two magnetic conduction piston plates that is enclosed within on the described piston rod, be provided with a permanent magnetic piston dish that is enclosed within on the described piston rod between two magnetic conduction piston plates of every group of magnetic conduction piston plate, be provided with a magnetic conduction sleeve that is enclosed within on the described piston rod between two adjacent magnetic conduction piston plates of adjacent group, outside described magnetic conduction sleeve, be wound with field coil.
2. multistep assemblied anti-settle magnetic rheological damper according to claim 1 is characterized in that: the residual magnetic flux density of described permanent magnetic piston dish is 5000-8000 Gauss.
3. multistep assemblied anti-settle magnetic rheological damper according to claim 1 and 2 is characterized in that: the surface of described permanent magnetic piston dish is provided with high-strength coating.
4. multistep assemblied anti-settle magnetic rheological damper according to claim 1 is characterized in that: described magnetic conduction piston plate, permanent magnetic piston dish, magnetic conduction sleeve can assemble with described piston rod freely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100144022A CN100363643C (en) | 2006-06-21 | 2006-06-21 | Multistep assemblied anti-settle magnetic rheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100144022A CN100363643C (en) | 2006-06-21 | 2006-06-21 | Multistep assemblied anti-settle magnetic rheological damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1869470A CN1869470A (en) | 2006-11-29 |
| CN100363643C true CN100363643C (en) | 2008-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100144022A Expired - Fee Related CN100363643C (en) | 2006-06-21 | 2006-06-21 | Multistep assemblied anti-settle magnetic rheological damper |
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| CN (1) | CN100363643C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742583A (en) * | 2014-02-05 | 2014-04-23 | 吉林大学 | Multistage spiral magnetorheological absorber piston assembly |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215860B (en) * | 2007-12-28 | 2010-05-19 | 天津大学 | High output MR damper |
| CN101215861B (en) * | 2007-12-28 | 2010-09-29 | 天津大学 | Damping force bidirectionally regulating MR damper |
| CN101215859B (en) * | 2007-12-28 | 2010-11-03 | 天津大学 | Full damping channel valid MR damper |
| CN102128232B (en) * | 2011-02-25 | 2012-07-25 | 重庆仪表材料研究所 | Multilevel retractable type magnetorheological damping device |
| CN103047334B (en) * | 2013-01-18 | 2014-10-08 | 浙大新剑（上海）智能技术有限公司 | Magneto-rheological damp multistage excitation unit |
| CN103697090A (en) * | 2014-01-03 | 2014-04-02 | 青岛农业大学 | Seven-stage adjustable rotary type electrorheological fluid brake |
| CN104924101A (en) * | 2015-07-01 | 2015-09-23 | 天津大学 | Servo-actuated support head having magneto-rheological damping function |
| CN105179568A (en) * | 2015-07-19 | 2015-12-23 | 常州大学 | Double-rod multistage-piston active single-control variable-damping magneto-rheological damper |
| CN106015437B (en) * | 2016-07-04 | 2018-01-02 | 北京交通大学 | A kind of rank power transformation MR damper |
| CN106015436B (en) * | 2016-07-04 | 2018-01-02 | 北京交通大学 | A kind of rank becomes magneto-rheological damper |
| CN110528717B (en) * | 2019-09-06 | 2021-03-23 | 武汉理工大学 | Inclined strut damper based on magnetorheological elastomer |
Citations (6)
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| US6202806B1 (en) * | 1997-10-29 | 2001-03-20 | Lord Corporation | Controllable device having a matrix medium retaining structure |
| US6336535B1 (en) * | 2001-03-14 | 2002-01-08 | Delphi Technologies, Inc. | Magneto-rheological damper with dual flux ring spacer |
| US6547044B2 (en) * | 2001-03-14 | 2003-04-15 | Delphi Technologies, Inc. | Magneto-rheological damper with ferromagnetic housing insert |
| CN1587738A (en) * | 2004-07-09 | 2005-03-02 | 北京工业大学 | Inverse type magnetic flow damper |
| CN1644955A (en) * | 2005-01-27 | 2005-07-27 | 浙江大学 | Semi-active magnet rheologic vibration absorber with failure protector |
| JP2006077788A (en) * | 2004-09-07 | 2006-03-23 | Honda Motor Co Ltd | Variable damping force damper |
-
2006
- 2006-06-21 CN CNB2006100144022A patent/CN100363643C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6202806B1 (en) * | 1997-10-29 | 2001-03-20 | Lord Corporation | Controllable device having a matrix medium retaining structure |
| US6336535B1 (en) * | 2001-03-14 | 2002-01-08 | Delphi Technologies, Inc. | Magneto-rheological damper with dual flux ring spacer |
| US6547044B2 (en) * | 2001-03-14 | 2003-04-15 | Delphi Technologies, Inc. | Magneto-rheological damper with ferromagnetic housing insert |
| CN1587738A (en) * | 2004-07-09 | 2005-03-02 | 北京工业大学 | Inverse type magnetic flow damper |
| JP2006077788A (en) * | 2004-09-07 | 2006-03-23 | Honda Motor Co Ltd | Variable damping force damper |
| CN1644955A (en) * | 2005-01-27 | 2005-07-27 | 浙江大学 | Semi-active magnet rheologic vibration absorber with failure protector |
Non-Patent Citations (1)
| Title |
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| 三段活塞式磁流变液减振器磁路的试验研究. 关新春，李金海，欧进萍.机械设计与研究，第20卷第1期. 2004 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742583A (en) * | 2014-02-05 | 2014-04-23 | 吉林大学 | Multistage spiral magnetorheological absorber piston assembly |
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| Publication number | Publication date |
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| CN1869470A (en) | 2006-11-29 |
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Granted publication date: 20080123 Termination date: 20100621 |