CN102537187A - Single-rod magnetorheological elastomer damper - Google Patents
Single-rod magnetorheological elastomer damper Download PDFInfo
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- CN102537187A CN102537187A CN2012100337069A CN201210033706A CN102537187A CN 102537187 A CN102537187 A CN 102537187A CN 2012100337069 A CN2012100337069 A CN 2012100337069A CN 201210033706 A CN201210033706 A CN 201210033706A CN 102537187 A CN102537187 A CN 102537187A
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- slave cylinder
- clutch release
- release slave
- damper
- damping
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Abstract
The invention discloses a single-rod magnetorheological elastomer damper. The single-rod magnetorheological elastomer damper comprises a damper rod, a damper block, two damper rollers and a working cylinder, wherein the cross section of the inner cavity of the working cylinder is of rectangle; baffle plates are both fixed at two ends of the working cylinder, the middle of one of the baffle plates is provided with a hole, and a sliding bearing is fixed in the hole; a layer of magnetorheological elastomer is fixed on the surfaces of the two short edges in the working cylinder; the cross section of the damper block is of an I shape; an excitation coil is wound in the middle of the damper block; a semicircular groove is arranged on the middle parts of the two ends of the damper block respectively, and the axis line of the groove is perpendicular to the axis line of the damper rod; the diameter of the groove is larger than the diameter of each damper roller; the damper rollers are installed in the semicircular groove at the two ends of the damper block; one end of the damper rod and the damper block are fixed; and the other end of the damper rod extends out of the working cylinder through the sliding bearing on the baffle plate at one end of the working cylinder.
Description
Technical field
The invention belongs to a kind of damper, be specifically related to a kind of single outstretch pole magnetorheological elastomer damper.
Background technique
Existing single outstretch pole magnetorheological damper mainly adopts the structure of clutch release slave cylinder, piston and piston rod; In clutch release slave cylinder, also be full of simultaneously magnetic flow liquid; This type MR damper is to drive the to-and-fro motion of piston in clutch release slave cylinder through piston rod to produce damping force, and the magnetic flow liquid in clutch release slave cylinder is taken out of outside the clutch release slave cylinder with piston rod, normally between clutch release slave cylinder and piston rod, adopts seal arrangement to solve the motive sealing problem of piston rod; Because magnetic flow liquid is the amalgam that contains the attritive powder of multiple composition at mineral oil; Therefore, it is carried out very difficulty of motive sealing, in case the leakage of magnetic flow liquid takes place; Light then make the decreased performance of MR damper; Heavy then make MR damper total failure, therefore, the motive sealing problem of piston rod has become industry and has improved the MR damper major obstacle in working life.
Summary of the invention
In the deficiency aspect the piston rod motive sealing, the present invention proposes brand-new MR damper, that is: a kind of single outstretch pole magnetorheological elastomer damper to existing MR damper.
Technological scheme of the present invention is following:
A kind of single outstretch pole magnetorheological elastomer damper, it comprises: damper rod, damping block, two damping rollers, clutch release slave cylinder; The cross section of clutch release slave cylinder inner chamber is a rectangular, all is fixed with plate washer at the two ends of clutch release slave cylinder, and the middle part of one of them plate washer is porose, and internal fixation has sliding bearing in the hole, and one deck magnetic rheology elastic body has all been fixed on the surface of two minor faces in clutch release slave cylinder; The cross section of damping block is I-shaped, is wound with field coil at the middle part of damping block, at the middle part at damping block two ends a semicircular groove is arranged respectively, and the shaft axis of groove is vertical with the shaft axis of damper rod, and the diameter of groove is greater than the diameter of damping roller; The damping roller is installed in the semi-circular recesses at damping block two ends; One end and the damping block of damper rod are fixed, and the other end of damper rod stretches out in clutch release slave cylinder through the sliding bearing on the clutch release slave cylinder one end plate washer; The width at damping block two ends is less than the spacing of magnetic rheology elastic body on two minor faces in the clutch release slave cylinder; Width between the damping block two ends damping roller is greater than spacing between the magnetic rheology elastic body on two minor faces in the clutch release slave cylinder; Width between the damping block two ends damping roller is less than the spacing between two minor faces in the clutch release slave cylinder, and clutch release slave cylinder, damping block and two damping rollers are made up of permeability magnetic material.
Function of the present invention be achieved in that since the width at damping block two ends less than the spacing of magnetic rheology elastic body on two minor faces in the clutch release slave cylinder; Width between the damping block two ends damping roller is greater than spacing between the magnetic rheology elastic body on two minor faces in the clutch release slave cylinder; Width between the damping block two ends damping roller is less than the spacing between two minor faces in the clutch release slave cylinder; So; When damper rod drove damping block and in clutch release slave cylinder, does back and forth operation, the magnetic rheology elastic body in the clutch release slave cylinder on two minor faces will be crushed under the roll extrusion of the damping roller at damping block two ends, made damper rod drive damping block and in clutch release slave cylinder, will receive certain damping force during reciprocal the operation.
When the field coil on damping block does not have electric current to pass through; Just there is not the magnetic line of force to pass through the magnetic rheology elastic body on damping block and interior two minor faces of clutch release slave cylinder; Therefore; The elasticity of the magnetic rheology elastic body on interior two minor faces of clutch release slave cylinder is less; When damping roller that damper rod drives the damping block two ends will receive less pressure during the magnetic rheology elastic body on two minor faces in the roll extrusion clutch release slave cylinder, make damper rod drive damping block in clutch release slave cylinder back and forth during operation suffered damping force less, and the magnetic rheology elastic body on two minor faces that flattened by the damping roller in the clutch release slave cylinder returns to normal after the damping roller is removed immediately.
After the field coil on the damping block feeds electric current; Damping block will generate an electromagnetic field; The magnetic line of force that this electromagnetic field produces will form closed magnetic circuit through magnetic rheology elastic body and the clutch release slave cylinder on interior two minor faces of damping roller, clutch release slave cylinder at damping block, damping block two ends; When damper rod drives damping block in clutch release slave cylinder during to-and-fro motion; The electromagnetic field that damping block produces will be along with damping block to-and-fro motion and magnetic rheology elastic body on two minor faces in the constantly inswept clutch release slave cylinder in clutch release slave cylinder; Make in the clutch release slave cylinder that is between damping block and the clutch release slave cylinder ferromagnetic particle in the magnetic rheology elastic body on two minor faces form chain or column aggregated structure and make its elasticity higher at magnetic direction; That is: the effect that makes in the clutch release slave cylinder magnetic line of force that the magnetic rheology elastic body on two minor faces produces at damping block is quilt " curing " down; Therefore; When the magnetic rheology elastic body on two minor faces in the roll extrusion clutch release slave cylinder of the damping roller on the damping block two ends will receive bigger pressure; Make damper rod drive damping block in clutch release slave cylinder during to-and-fro motion suffered damping force bigger, simultaneously, after electromagnetic field that damping block produces moves past in the clutch release slave cylinder zone of the magnetic rheology elastic body on two minor faces; Magnetic rheology elastic body on interior two minor faces of clutch release slave cylinder just can return to normal; If damping block continues to-and-fro motion in clutch release slave cylinder, the magnetic rheology elastic body that has then returned to normal on the magnetic rheology elastic body on two minor faces in the clutch release slave cylinder will be once more by " curing " with by the roll extrusion of damping roller under the effect of the electromagnetic field that damping block produces, make on interior two minor faces of clutch release slave cylinder the magnetic rheology elastic body on the same area under the effect of damping block electromagnetic field constantly by " curing ", return to normal again by roll extrusion and after damping block is removed.
Therefore; Get into the size of current in the field coil on the damping block through adjustment; Can adjust the electromagnetic field intensity that damping block produces; Thereby change the elasticity size be in the electromagnetic field zone that damping block produces in the clutch release slave cylinder magnetic rheology elastic body on two minor faces, make the damping force of single outstretch pole magnetorheological elastomer damper obtain adjusting.Compare with existing single outstretch pole magnetorheological damper; " a kind of single outstretch pole magnetorheological elastomer damper " of the present invention is the magnetic rheology elastic body that is fixed in the clutch release slave cylinder on two minor faces because of its working medium; There is not motive sealing problem to magnetic flow liquid; So, " a kind of single outstretch pole magnetorheological elastomer damper " of the present invention but the service behaviour stable for extended periods of time and be improved working life.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the work schematic representation during the field coil no electric circuit among the present invention.
Fig. 4 be among the present invention field coil energising back damper rod to the work schematic representation of left movement.
Fig. 5 is the work schematic representation that field coil energising back damper rod moves right among the present invention.
Fig. 6 is the schematic representation that the field coil energising back magnetic line of force forms closed magnetic circuit among the present invention.
Embodiment
Specify structure of the present invention below in conjunction with accompanying drawing:
Referring to Fig. 1 and Fig. 2; This is a kind of concrete structure of the present invention; A kind of single outstretch pole magnetorheological elastomer damper, it comprises: damper rod 8 that is made up of non-magnet_conductible material, constituted damping block 16, constituted two damping rollers 3 and 14, constituted clutch release slave cylinder 1 by permeability magnetic material by permeability magnetic material by permeability magnetic material; The cross section of clutch release slave cylinder 1 inner chamber is a rectangular, is fixed with plate washer 6 and 17 at the two ends of clutch release slave cylinder 1, and wherein: the middle part of plate washer 6 is porose, and internal fixation has sliding bearing 7 in the hole, has all fixed one deck magnetic rheology elastic body 2 and 12 on the surface of clutch release slave cylinder 1 interior two minor faces; The cross section of damping block 16 is I-shaped; Be wound with field coil 5 and 13 at the middle part of damping block 16; Be filled with insulating material 18 in the gap between field coil 5 and 13; A semicircular groove 4 and 15 are respectively arranged at the middle part at damping block 16 two ends, and groove 4 is vertical with the shaft axis of damper rod 8 with 15 shaft axis, and groove 4 and 15 diameter are greater than the diameter of damping roller 3 and 14; Damping roller 3 and 14 axles 19 through its two ends are installed in the semi-circular recesses 4 and 15 at damping block 16 two ends with axle 20, axle 21 and axle 22; There is through hole 9 at the center of damper rod 8; One end of damper rod 8 and damping block 16 are fixing; The other end of damper rod 8 stretches out in clutch release slave cylinder 1 through the sliding bearing 7 on the clutch release slave cylinder 1 one end plate washers 6, field coil 5 and 13 lighting outlet 11 center hole 9 through damper rod 8 lead to clutch release slave cylinder 1 outer with control power supply 10 and be connected; The width at damping block 16 two ends is less than the spacing of magnetic rheology elastic body 2 on clutch release slave cylinder 1 interior two minor faces and 12; Width between the damping block 16 two ends damping rollers 3 and 14 is greater than spacing between the magnetic rheology elastic body 2 and 12 on clutch release slave cylinder 1 interior two minor faces, and the width between the damping block 16 two ends damping rollers 3 and 14 is less than the spacing between clutch release slave cylinder 1 interior two minor faces.
Combine now Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 that a kind of single outstretch pole magnetorheological elastomer damper of the present invention is further described: when controlling power supply 10 not on damping block 16 when field coil 5 and 13 output currents; If it is reciprocating in clutch release slave cylinder 1 that damper rod 8 drives damping block 16; The magnetic rheology elastic body 2 and 12 on clutch release slave cylinder 1 interior two minor faces then; Under the roll extrusion of the damping roller 3 at damping block 1 two ends and 14, will be crushed (seeing Fig. 3 for details); Make damper rod 8 drive damping blocks 16 and clutch release slave cylinder 1 in, will receive certain damping force during to-and-fro motion, and returned to normal immediately after damping roller 3 and 14 is removed by the magnetic rheology elastic body 2 and 12 on two minor faces of damping roller 3 and 14 flattenings in the clutch release slave cylinder 1;
When controlling power supply 10 behind field coil 5 on the damping block 16 and 13 output currents; Damping block 16 will generate an electromagnetic field; The magnetic line of force that this electromagnetic field produces will be through the damping roller 3 and 14 at damping block 16, damping block 16 two ends, magnetic rheology elastic body 2 and 12 and clutch release slave cylinder 1 formation closed magnetic circuit (seeing Fig. 6 for details) on clutch release slave cylinder 1 interior two minor faces; Make the ferromagnetic particle in the magnetic rheology elastic body 2 and 12 on clutch release slave cylinder 1 interior two minor faces that are between damping block 16 and the clutch release slave cylinder 1 form chain or column aggregated structure and make its elasticity higher at magnetic direction; When damper rod 8 drives damping blocks 16 in clutch release slave cylinder 1 during to left movement; Damping roller 3 on damping block 16 two ends and 14 on roll extrusion clutch release slave cylinder 1 interior two minor faces magnetic rheology elastic body 2 and will receive bigger pressure at 12 o'clock; Make damper rod 8 drive damping blocks 16 in clutch release slave cylinder 1 when left movement suffered damping force bigger; After electromagnetic field that damping block 16 produces moves past the magnetic rheology elastic body 2 and 12 zone on clutch release slave cylinder 1 interior two minor faces, the magnetic rheology elastic body 2 and 12 on clutch release slave cylinder 1 interior two minor faces just can return to normal (seeing 25 among Fig. 4 and 26 for details); Get into the size of current in the field coil 5 and 13 on the damping block 16 through adjustment; Can adjust the electromagnetic field intensity that damping block 16 produces; To be in the electromagnetic field zone that damping block 16 produced the magnetic rheology elastic body 2 on clutch release slave cylinder 1 interior two minor faces big or small with 12 elasticity thereby change, and makes the damping force of single outstretch pole magnetorheological elastomer damper obtain adjusting.Situation when damper rod 8 drive damping blocks 16 move right in clutch release slave cylinder 1 is similar with it, repeats no more here.
Claims (3)
1. single outstretch pole magnetorheological elastomer damper; It comprises: damper rod, damping block, two damping rollers, clutch release slave cylinder; It is characterized in that: the cross section of said clutch release slave cylinder inner chamber is a rectangular, all is fixed with plate washer at the two ends of clutch release slave cylinder, and the middle part of one of them plate washer is porose; Internal fixation has sliding bearing in the hole, and one deck magnetic rheology elastic body has all been fixed on the surface of two minor faces in clutch release slave cylinder; The cross section of said damping block is I-shaped, is wound with field coil at the middle part of damping block, at the middle part at damping block two ends a semicircular groove is arranged respectively, and the shaft axis of groove is vertical with the shaft axis of damper rod, and the diameter of groove is greater than the diameter of damping roller; Said damping roller is installed in the semi-circular recesses at damping block two ends; One end and the damping block of said damper rod are fixed, and the other end of damper rod stretches out in clutch release slave cylinder through the sliding bearing on the clutch release slave cylinder one end plate washer; The width at said damping block two ends is less than the spacing of magnetic rheology elastic body on two minor faces in the clutch release slave cylinder; Width between the said damping block two ends damping roller is greater than spacing between the magnetic rheology elastic body on two minor faces in the clutch release slave cylinder, and the width between the said damping block two ends damping roller is less than the spacing between two minor faces in the clutch release slave cylinder.
2. a kind of single outstretch pole magnetorheological elastomer damper as claimed in claim 1 is characterized in that: said clutch release slave cylinder, damping block and two damping rollers are made up of permeability magnetic material; Said damper rod is made up of non-magnet_conductible material.
3. a kind of single outstretch pole magnetorheological elastomer damper as claimed in claim 1, it is characterized in that: there is through hole at the center of said damper rod, and the lighting outlet of said damping block middle part field coil leads to outside the clutch release slave cylinder through the center hole of damper rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100337069A CN102537187A (en) | 2012-02-15 | 2012-02-15 | Single-rod magnetorheological elastomer damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100337069A CN102537187A (en) | 2012-02-15 | 2012-02-15 | Single-rod magnetorheological elastomer damper |
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| Publication Number | Publication Date |
|---|---|
| CN102537187A true CN102537187A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100337069A Pending CN102537187A (en) | 2012-02-15 | 2012-02-15 | Single-rod magnetorheological elastomer damper |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3696891A (en) * | 1970-10-29 | 1972-10-10 | Hartwell Corp The | Energy absorbing device |
| US3820634A (en) * | 1973-08-10 | 1974-06-28 | Hartwell Corp | Shock resisting energy absorbing device |
| US4583621A (en) * | 1983-04-08 | 1986-04-22 | Industrie Pirelli S.P.A. | Differentiated action oscillation damping device |
| US6394239B1 (en) * | 1997-10-29 | 2002-05-28 | Lord Corporation | Controllable medium device and apparatus utilizing same |
| GB2382638A (en) * | 2001-11-30 | 2003-06-04 | Visteon Global Tech Inc | A magneto-rheological fluid-controlled vehicle suspension damper |
| CN101550982A (en) * | 2009-04-30 | 2009-10-07 | 重庆大学 | A self-supplied magnetic current damper |
| CN202418405U (en) * | 2012-02-15 | 2012-09-05 | 谭晓婧 | Single-ended magnetorheological elastomer damper |
-
2012
- 2012-02-15 CN CN2012100337069A patent/CN102537187A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3696891A (en) * | 1970-10-29 | 1972-10-10 | Hartwell Corp The | Energy absorbing device |
| US3820634A (en) * | 1973-08-10 | 1974-06-28 | Hartwell Corp | Shock resisting energy absorbing device |
| US4583621A (en) * | 1983-04-08 | 1986-04-22 | Industrie Pirelli S.P.A. | Differentiated action oscillation damping device |
| US6394239B1 (en) * | 1997-10-29 | 2002-05-28 | Lord Corporation | Controllable medium device and apparatus utilizing same |
| GB2382638A (en) * | 2001-11-30 | 2003-06-04 | Visteon Global Tech Inc | A magneto-rheological fluid-controlled vehicle suspension damper |
| CN101550982A (en) * | 2009-04-30 | 2009-10-07 | 重庆大学 | A self-supplied magnetic current damper |
| CN202418405U (en) * | 2012-02-15 | 2012-09-05 | 谭晓婧 | Single-ended magnetorheological elastomer damper |
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Application publication date: 20120704 |