CN102537168A - Double-rod magnetorheological elastomer damper - Google Patents
Double-rod magnetorheological elastomer damper Download PDFInfo
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- CN102537168A CN102537168A CN2012100365622A CN201210036562A CN102537168A CN 102537168 A CN102537168 A CN 102537168A CN 2012100365622 A CN2012100365622 A CN 2012100365622A CN 201210036562 A CN201210036562 A CN 201210036562A CN 102537168 A CN102537168 A CN 102537168A
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- damping
- slave cylinder
- clutch release
- release slave
- damping block
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Abstract
The invention discloses a double-rod magnetorheological elastomer damper, which comprises two damping rods, a damping block, four damping rollers and a working cylinder. The cross section of an inner cavity of the working cylinder is rectangular, baffle plates are fixed to two ends of the working cylinder, a hole is arranged in the middle of each baffle plate, a sliding bearing is fixed into each hole, and a magnetorheological elastomer is fixed to the surface of each of two short inner edges of the working cylinder. The longitudinal section of the damping block is I-shaped, an excitation coil is wound in the middle of the damping block, the end faces of four branches of the I-shaped damping block are respectively provided with a semicircular groove, the axis line of each groove is perpendicular to that of each damping rod, and the diameter of each groove is larger than that of each damping roller. The damping rollers are mounted in the semicircular grooves on the end faces of the four branches of the I-shaped damping block, one end of one damping rod and one end of the other damping rod are fixed to two ends of the damping block respectively, the other ends of the two damping rods extend out of the working cylinder respectively through the sliding bearings on the baffle plates at the two ends of the working cylinder.
Description
Technical field
The invention belongs to a kind of damper, be specifically related to a kind of pair of outstretch pole magnetorheological elastomer damper.
Background technique
Existing pair of 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, number be like one Chinese patent application: 03132633.1 " the two outstretch pole magnetorheological fluid dampers of built-in air sac type ", 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; 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, adopt 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 pair of outstretch pole magnetorheological elastomer damper to existing MR damper.
Technological scheme of the present invention is following:
A kind of pair of outstretch pole magnetorheological elastomer damper, it comprises: two damper rods, 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 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 longitudinal section of damping block is I-shaped; Middle part at I-shaped damping block is wound with field coil; End face at four branches of I-shaped damping block respectively has a semicircular groove, 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 of four branch end faces of I-shaped damping block; One end of two damper rods is separately fixed at the two ends of I-shaped damping block, and the other end of two damper rods stretches out in clutch release slave cylinder through the sliding bearing on the plate washer of clutch release slave cylinder two ends respectively; The width of I-shaped damping block is less than the spacing of magnetic rheology elastic body on two minor faces in the clutch release slave cylinder; Width on the I-shaped damping block between the damping roller is greater than spacing between the magnetic rheology elastic body on two minor faces in the clutch release slave cylinder; Width on the I-shaped damping block between the damping roller is less than the spacing between two minor faces in the clutch release slave cylinder; And two minor faces of clutch release slave cylinder, I-shaped damping block and four damping rollers are made up of permeability magnetic material; Two long limits and two damper rods of clutch release slave cylinder are made up of non-magnet_conductible material; A damper rod in two damper rods has the center that through hole is arranged, and the lighting outlet of I-shaped damping block middle part field coil leads to outside the clutch release slave cylinder through the center hole of damper rod.
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 on the damping block between the damping roller is greater than the spacing between the magnetic rheology elastic body on two minor faces in the clutch release slave cylinder; Width on the damping block between the damping roller is less than the spacing between two minor faces in the clutch release slave cylinder; So; When damper rod drive damping block is done back and forth operation in clutch release slave cylinder; Magnetic rheology elastic body will be crushed under the roll extrusion of four damping rollers on four branch end faces of damping block on interior two minor faces of clutch release slave cylinder, damper rod is driven when damping block back and forth moves in clutch release slave cylinder will receive certain damping force.
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; In the roll extrusion clutch release slave cylinder, will receive less pressure during the magnetic rheology elastic body on two minor faces when damper rod drives four damping rollers on four branch end faces of damping block, 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 circuits through the magnetic rheology elastic body on the damping roller on damping block, four branch end faces of damping block and four branch end faces of damping block, interior two minor faces of clutch release slave cylinder and two minor faces of clutch release slave cylinder
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 four damping rollers on four branch end faces of damping block 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 moved past in the clutch release slave cylinder zone of the magnetic rheology elastic body on two minor faces, the magnetic rheology elastic body in the clutch release slave cylinder on two minor faces 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 two outstretch pole magnetorheological elastomer dampers obtain adjusting.Compare with existing pair of outstretch pole magnetorheological damper; " a kind of pair of 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 pair of 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 that the A of Fig. 1 is to sectional view.
Fig. 3 is that the B of Fig. 1 is to sectional view.
Fig. 4 is that the C of Fig. 1 is to sectional view.
Dotted line among Fig. 5 is the schematic representation that the field coil energising back magnetic line of force forms closed magnetic circuit among the present invention.
Fig. 6 be among the present invention field coil energising back damper rod to the work schematic representation of left movement.
Fig. 7 is the work schematic representation that field coil energising back damper rod moves right among the present invention.
Embodiment
Specify structure of the present invention below in conjunction with accompanying drawing:
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4; This is a kind of concrete structure of the present invention; A kind of pair of outstretch pole magnetorheological elastomer damper, it comprises: two damper rods 11 and 26 that are made up of non-magnet_conductible material, the damping block 24 that is made up of permeability magnetic material, four the damping rollers 3,6,19 and 22 that are made up of permeability magnetic material; Wherein: the cross section of clutch release slave cylinder 1 inner chamber is a rectangular; Two ends at clutch release slave cylinder 1 all are fixed with plate washer 9 and 28; Plate washer 9 and 28 middle part are porose; Internal fixation has sliding bearing 10 and 27 in the hole, and one deck magnetic rheology elastic body 8 and 15 have all been fixed in two minor faces 20 that in clutch release slave cylinder 1, are made up of permeability magnetic material and 29 surface, and two long limits 46 of clutch release slave cylinder 1 and 47 are made up of non-magnet_conductible material; The longitudinal section of damping block 24 is I-shaped; Be wound with field coil 5 at the middle part of damping block 24; At four branches 4 of I- shaped damping block 24 and 21,7 and 17 end face a semicircular groove 25 and 23,16 and 18 are arranged respectively; Groove 25 and 23,16 vertical with 26 shaft axis with 18 shaft axis and damper rod 11, groove 25 and 23,16 and 18 diameter are greater than damping roller 3 and 22,6 and 19 diameter; Damping roller 3 and 22,6 and 19 axles 30 and 31,32 and 33,34 and 35,36 and 37 through its two ends are installed in the semi-circular recesses 25 and 23,16 and 18 of 24 4 branches 4 of damping block and 21,7 and 17 end faces; Damper rod 11 and an end of 26 are separately fixed at the two ends of damping block 24, and the damper rod 11 and 26 the other end stretch out in clutch release slave cylinder 1 through the sliding bearing 10 and 27 on clutch release slave cylinder 1 two ends plate washer 9 and 28 respectively; The width of damping block 24 is less than the spacing between the magnetic rheology elastic body 8 and 15 on clutch release slave cylinder 1 interior two minor faces 20 and 29; Width on the damping block 24 between the damping roller 3 and 22 or 6 and 19 is greater than the spacing between the magnetic rheology elastic body 8 and 15 on clutch release slave cylinder 1 interior two minor faces 20 and 29; Damping roller 3 and 22 or 6 and 19 width are less than the spacing between clutch release slave cylinder 1 interior two minor faces 20 and 29 on the damping block 24; There is through hole 12 at the center of damper rod 11, the center hole 12 of the lighting outlet 14 of damping block 24 middle part field coils 5 through damper rod 11 lead to clutch release slave cylinder 1 outer with control power supply 13 and be connected.
Combine now Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7 that a kind of pair of outstretch pole magnetorheological elastomer damper of the present invention further described: when controlling power supply 13 not on damping block 24 during field coil 5 output currents; If it is reciprocating in clutch release slave cylinder 1 that damper rod 11 drives damping block 24; The magnetic rheology elastic body 8 and 15 on clutch release slave cylinder 1 interior two minor faces 20 and 29 then; Under the roll extrusion of the damping roller 3,22,6 on 24 4 branches of damping block 4,21,7 and 17 end faces and 19, will be crushed (seeing Fig. 1,2 and 4 for details); Make damper rod 11 drive damping blocks 24 and clutch release slave cylinder 1 in, will receive certain damping force during to-and-fro motion, and in the clutch release slave cylinder 1 by the magnetic rheology elastic body 8 and 15 on two minor faces 20 of damping roller 3 and 22 or 6 and 19 flattenings and 29 after damping roller 3 and 22 or 6 and 19 is removed, return to normal immediately (seeing Fig. 1 for details);
When controlling power supply 13 behind field coil 5 output currents on the damping block 24; Damping block 24 will generate an electromagnetic field; The magnetic line of force that this electromagnetic field produces will through damping block 24,24 4 branches of damping block 4,21,7 and 17 and 24 4 branches of damping block, 4,21,7,17 end faces on damping roller 3,22,6 and 19 and clutch release slave cylinder 1 interior two minor faces 20 and 29 on magnetic rheology elastic body 8 and 15 formation closed magnetic circuits (seeing Fig. 5 for details); Make the ferromagnetic particle in the magnetic rheology elastic body 8 and 15 on clutch release slave cylinder 1 interior two minor faces 20 and 29 that are between damping block 24 and the clutch release slave cylinder 1 form chain or column aggregated structure and make its elasticity higher at magnetic direction; When damper rod 11 drives damping blocks 24 in clutch release slave cylinder 1 during to left movement; Damping roller 3,22,6 on 24 4 branches of damping block 4,21,7 and 17 end faces and 19 on roll extrusion clutch release slave cylinder 1 interior two minor faces 20 and 29 magnetic rheology elastic body 8 and will receive bigger pressure at 15 o'clock; Make damper rod 11 drive damping blocks 24 in clutch release slave cylinder 1 when left movement suffered damping force bigger; After electromagnetic field that damping block 24 produces moves past the magnetic rheology elastic body 8 and 15 zone on clutch release slave cylinder 1 interior two minor faces 20 and 29, the magnetic rheology elastic body 8 and 15 on clutch release slave cylinder 1 interior two minor faces 20 and 29 just can return to normal (seeing 39 among Fig. 6 and 40,38 and 41 for details); Get into the size of current in the field coil 5 on the damping block 24 through adjustment; Can adjust the electromagnetic field intensity that damping block 24 produces; To be in the electromagnetic field zone that damping block 24 produced the magnetic rheology elastic body 8 on clutch release slave cylinder 1 interior two minor faces 20 and 29 big or small with 15 elasticity thereby change, and makes the damping force of pair outstretch pole magnetorheological elastomer dampers obtain adjusting.Situation similar with it (seeing Fig. 7 for details) when damper rod 11 drive damping blocks 24 move right in clutch release slave cylinder 1 repeats no more here.
Claims (3)
1. two outstretch pole magnetorheological elastomer damper; It comprises: two damper rods, damping block, four 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 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 longitudinal section of said damping block is I-shaped; Middle part at damping block is wound with field coil; End face at four branches of damping block respectively has a semicircular groove, 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 of four branch end faces of damping block; One end of said two damper rods is separately fixed at the two ends of damping block, and the other end of two damper rods stretches out in clutch release slave cylinder through the sliding bearing on the plate washer of clutch release slave cylinder two ends respectively; The width of said damping block is less than the spacing of magnetic rheology elastic body on two minor faces in the clutch release slave cylinder; Width on the said damping block between the damping roller is greater than the spacing between the magnetic rheology elastic body on two minor faces in the clutch release slave cylinder, and the width on the said damping block between the damping roller is less than the spacing between two minor faces in the clutch release slave cylinder.
2. a kind of pair of outstretch pole magnetorheological elastomer damper as claimed in claim 1 is characterized in that: two minor faces of said clutch release slave cylinder, damping block and four damping rollers are made up of permeability magnetic material; Two long limits and two damper rods of said clutch release slave cylinder are made up of non-magnet_conductible material.
3. a kind of pair of outstretch pole magnetorheological elastomer damper as claimed in claim 1; It is characterized in that: a damper rod in said two damper rods has the center that through hole is arranged, 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 |
|---|---|---|---|
| CN2012100365622A CN102537168A (en) | 2012-02-19 | 2012-02-19 | Double-rod magnetorheological elastomer damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100365622A CN102537168A (en) | 2012-02-19 | 2012-02-19 | Double-rod magnetorheological elastomer damper |
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| CN102537168A true CN102537168A (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100365622A Pending CN102537168A (en) | 2012-02-19 | 2012-02-19 | Double-rod magnetorheological elastomer damper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196946A (en) * | 2014-08-19 | 2014-12-10 | 谭晓婧 | Double-outlet-rod multi-built-in-electromagnet magneto-rheological damper |
| CN104500641A (en) * | 2015-01-14 | 2015-04-08 | 青岛理工大学 | Birotor self-powered damper based on magnetorheological elastomers |
| CN106292193A (en) * | 2015-05-24 | 2017-01-04 | 上海微电子装备有限公司 | Shock-absorbing means and vibration absorption method, Optical Coatings for Photolithography |
-
2012
- 2012-02-19 CN CN2012100365622A patent/CN102537168A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196946A (en) * | 2014-08-19 | 2014-12-10 | 谭晓婧 | Double-outlet-rod multi-built-in-electromagnet magneto-rheological damper |
| CN104196946B (en) * | 2014-08-19 | 2015-12-02 | 谭晓婧 | The ferromagnetic rheological damper of the many built-in electromagnetics of two rod |
| CN104500641A (en) * | 2015-01-14 | 2015-04-08 | 青岛理工大学 | Birotor self-powered damper based on magnetorheological elastomers |
| CN104500641B (en) * | 2015-01-14 | 2016-08-24 | 青岛理工大学 | A kind of birotor self-powered amortisseur based on magnetic rheology elastic body |
| CN106292193A (en) * | 2015-05-24 | 2017-01-04 | 上海微电子装备有限公司 | Shock-absorbing means and vibration absorption method, Optical Coatings for Photolithography |
| CN106292193B (en) * | 2015-05-24 | 2019-01-29 | 上海微电子装备（集团）股份有限公司 | Shock-absorbing means and vibration absorption method, Optical Coatings for Photolithography |
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Application publication date: 20120704 |