CN202441803U - Magnetorheological elastomer rotating damper - Google Patents
Magnetorheological elastomer rotating damper Download PDFInfo
- Publication number
- CN202441803U CN202441803U CN2012200630144U CN201220063014U CN202441803U CN 202441803 U CN202441803 U CN 202441803U CN 2012200630144 U CN2012200630144 U CN 2012200630144U CN 201220063014 U CN201220063014 U CN 201220063014U CN 202441803 U CN202441803 U CN 202441803U
- Authority
- CN
- China
- Prior art keywords
- stator
- rotor
- elastic body
- damping roller
- end cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a magnetorheological elastomer rotating damper which comprises a stator, a rotor, a damping roller and two rotating shafts, wherein the stator has a cylindrical shape; end covers are arranged at two ends of the stator; bearings are arranged in central holes of the end covers; magnetorheological elastomer layers are fixed on inner surfaces of the end covers of the stator; the rotor has an I shape; a magnet exciting coil is wound on the I-shaped rotor; semicircular conical grooves are formed in the middle of four branched end faces of the I-shaped rotor; an axis of the semicircular conical grooves is positioned on the diameter of the stator; the diameter of the semicircular conical grooves is larger than that of the damping roller; the damping roller is conical and is arranged in the semicircular conical grooves; and one ends of the two rotating shafts are fixed with the two ends of the I-shaped rotor, and the other ends of the two rotating shafts respectively extend out of the stator through the bearings on the end covers at two ends of the stator.
Description
Technical field
The utility model belongs to a kind of damper, is specifically related to a kind of magnetic rheology elastic body rotary type damper.
Background technique
Existing revolving type magnetic rheologic damper is that rotor is placed in the clutch release slave cylinder; In clutch release slave cylinder, also be full of magnetic flow liquid; Adjust the damping force of its output through the viscosity that changes magnetic flow liquid in the clutch release slave cylinder; Magnetic flow liquid in clutch release slave cylinder is taken out of outside the clutch release slave cylinder with rotatingshaft; Normally between clutch release slave cylinder and rotatingshaft, adopt seal arrangement to solve the motive sealing problem of rotatingshaft, like one Chinese patent application number be: 200910251079.4 " a kind of screw rod type magnetorheological rotary damper " and one Chinese patent application number are: the high performance, multiple plates, revolving type magnetic rheologic damper of 200510040890.X; Because of magnetic flow liquid is the amalgam that in mineral oil, is added with the attritive powder of multiple composition; 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 revolving type magnetic rheologic damper; Heavy then make revolving type magnetic rheologic damper total failure, therefore, the motive sealing problem of magnetic flow liquid has become industry and has improved the MR damper major obstacle in working life.
Summary of the invention
In the deficiency aspect the rotatingshaft motive sealing, the utility model provides brand-new revolving type magnetic rheologic damper, that is: a kind of magnetic rheology elastic body rotary type damper to existing revolving type magnetic rheologic damper.
The technological scheme of the utility model is following: a kind of magnetic rheology elastic body rotary type damper, and it comprises: stator, rotor, damping roller and two rotating shafts; Stator is a cylindrical shape, all is provided with end cap at the stator two ends, in the center hole of end cap, bearing is installed; The internal surface of stator two ends end cap has all been fixed one deck magnetic rheology elastic body; Rotor is I-shaped, on I-shaped rotor, is wound with field coil, and the groove of a half cone-shaped is all arranged at the middle part of four branch end faces of I-shaped rotor; The shaft axis of half cone-shaped groove is on the diameter of stator; The diameter of half cone-shaped groove is greater than the diameter of damping roller, and the damping roller is conical, in the half cone-shaped groove that the damping roller is installed in; One end of two rotating shafts and the two ends of I-shaped rotor are fixed; The other end of two rotating shafts stretches out in stator through the bearing on the end cap of stator two ends respectively, and rotor is installed in the stator, and the width between four branch end faces of I-shaped rotor is less than the spacing between the magnetic rheology elastic body on the end cap internal surface of stator two ends; Width on four branch end faces of I-shaped rotor between the damping roller is greater than the spacing between the magnetic rheology elastic body on the end cap internal surface of stator two ends, and the width on four branch end faces of I-shaped rotor between the damping roller is less than the spacing between the end cap of stator two ends; The end cap at stator two ends, rotor and damping roller constitute by permeability magnetic material, and wherein rotating shaft of two rotating shafts has central through bore, and the lighting outlet of rotor excitation coil leads to outside the stator through the center hole of rotating shaft, and two rotating shafts are made up of non-magnet_conductible material.
The function of the utility model be achieved in that since four branch end faces of I-shaped rotor between width less than the spacing between the magnetic rheology elastic body on the end cap internal surface of stator two ends; Width on four branch end faces of I-shaped rotor between the damping roller is greater than the spacing between the magnetic rheology elastic body on the end cap internal surface of stator two ends; Width on four branch end faces of I-shaped rotor between the damping roller is less than the spacing between the end cap of stator two ends; So; When rotating shaft drive rotor rotates in stator; Magnetic rheology elastic body on the end cap internal surface of stator two ends will be flattened by the damping roller on four branch end faces of I-shaped rotor, will receive certain damping due to rotation power thereby rotating shaft is driven when rotor rotates in stator; When field coil does not have electric current to pass through on rotor; There is not the magnetic line of force to pass through the magnetic rheology elastic body on the end cap internal surface of stator two ends; Therefore; The elasticity of the magnetic rheology elastic body on the end cap internal surface of stator two ends is less; On the rotor on the end cap internal surface of damping roller roll extrusion stator two ends magnetic rheology elastic body will receive less pressure, damping due to rotation power suffered when making rotating shaft drive rotor in stator, rotate is less, and the magnetic rheology elastic body on the end cap internal surface of stator two ends returns to normal after by the flattening of damping roller immediately; After field coil on the rotor feeds electric current; Rotor will generate an electromagnetic field; Because of stator two ends end cap, rotor and damping roller constitute by permeability magnetic material; So the magnetic line of force that the rotor electromagnetic field produces can form closed magnetic circuit through end face, the damping roller on four branch ends of rotor end face, the magnetic rheology elastic body on the end cap internal surface of stator two ends and the stator two ends end cap of four branch ends of rotor; Make the ferromagnetic particle in end face, the damping roller on four branch ends of rotor end face and the magnetic rheology elastic body between the end cap internal surface of stator two ends that is in four branch ends of rotor form chain or column aggregated structure and make its elasticity higher and " curing " at magnetic direction; When rotating shaft drive rotor rotates in stator; The electromagnetic field that rotor produces will rotate in stator along with the rotation of rotor; And the magnetic rheology elastic body on the end cap internal surface of constantly inswept stator two ends; Make magnetic rheology elastic body on the end cap internal surface of stator two ends under the effect of the magnetic line of force of rotor by " curings ", therefore, when the damping roller on four branch ends of rotor end face will receive bigger pressure during the quilt magnetic rheology elastic body of " curing " on the end cap internal surface of roll extrusion stator two ends; Damping due to rotation power suffered when rotating shaft drive rotor is rotated in stator is bigger; And the magnetic rheology elastic body on the end cap internal surface of stator two ends by the damping roller roll extrusion on four branch ends of rotor end face flat after, owing to the influence of the electromagnetic field that receives four branch ends of rotor end face is difficult to return to normal, have only after four branch ends of rotor end face leaves this zone just can return to normal; If rotor continues rotation, the magnetic rheology elastic body that has then returned to normal on the stator two ends end cap internal surface will so be gone round and begun again by (electromagnetic field of the rotor that turns over) " curing " and by damping roller roll extrusion on four branch ends of rotor end face once more.
Therefore; Get into the size of current in the field coil on the rotor through adjustment; Can adjust the generate an electromagnetic field size of intensity of rotor; Thereby change the elasticity size of the magnetic rheology elastic body on inner stator two ends, the electromagnetic field zone end cap internal surface that is in the generation of four branch ends of rotor end face, make the damping due to rotation power of magnetic rheology elastic body rotary type damper obtain adjustment.
Compare with existing magnetorheological rotary damper, do not make its structure simpler because of the magnetic rheology elastic body rotary type damper need not seal magnetic flow liquid, the stability and the reliability of its work are greatly enhanced.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is that the B of Fig. 1 is to sectional view.
Fig. 3 is that the A of Fig. 1 is to sectional view.
Fig. 4 is that the D of Fig. 1 is to sectional view.
Fig. 5 is that the C of Fig. 1 is to sectional view.
Dotted line among Fig. 6 is the schematic representation that field coil energising back electromagnetic field forms closed magnetic circuit on the utility model rotor.
Fig. 7 be on the utility model rotor during the rotor clockwise rotation of field coil energising back the C of Fig. 1 to sectional view.
Fig. 8 be on the model utility rotor during rotor clockwise rotation of field coil energising back the D of Fig. 1 to sectional view.
Embodiment
Specify the structure of the utility model below in conjunction with accompanying drawing:
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5; This is a kind of concrete structure of the utility model; A kind of magnetic rheology elastic body rotary type damper; It comprises: the stator 5 that is made up of non-magnet_conductible material, the rotor 20 that is made up of permeability magnetic material, the damping roller 2,9,16 and 24 that is made up of permeability magnetic material, the rotating shaft 14 and 31 that is made up of non-magnet_conductible material; Stator 5 is a cylindrical shape; All be provided with end cap 11 and 26 at stator 5 two ends; Bearing 13 and 28 are installed in the center hole of end cap 11 and 26; Stator 5 end caps 11 and 26 internal surface have all been fixed one deck magnetic rheology elastic body 10 and 25; Rotor 20 is I-shaped; On I-shaped rotor 20, be wound with field coil 4,6,19 and 21; The groove 41,42,43 and 44 that a half cone-shaped is all arranged at the middle part of four branch end faces 45,46,47 of I- shaped rotor 20 and 48; Half cone- shaped groove 41,42,44 and 43 shaft axis are on the diameter of stator 1; Half cone- shaped groove 41,42,43 and 44 diameter are greater than the diameter of damping roller 2,9,16 and 24; Damping roller 2,9,16 and 24 is conical; Damping roller 2,9,16 and 24 is through in axle 1 and 33,8 and 12,15 and 17, the 23 and 27 half cone- shaped grooves 41,42,44 and 43 that are installed on it, and rotating shaft 14 and an end of 31 and the two ends of I-shaped rotor 20 are fixed, and the rotating shaft 14 and 31 the other end stretch out in stator 5 through the bearing 13 and 28 on stator 5 two ends end caps 11 and 26 respectively; Rotor 20 is installed in the stator 5; Width (seeing the W4 among Fig. 4 and Fig. 5 for details) between four branch end faces 45 of I- shaped rotor 20 and 47,46 and 48 is less than the spacing (seeing the W3 among Fig. 4 and Fig. 5 for details) between the magnetic rheology elastic body 10 and 25 on stator 5 two ends end caps 11 and 26 internal surfaces, and damping roller 2 and 24, the width between 9 and 16 (seeing the W2 among Fig. 4 and Fig. 5 for details) are greater than the spacing (seeing the W3 among Fig. 4 and Fig. 5 for details) between the magnetic rheology elastic body 10 and 25 on stator 5 two ends end caps 11 and 26 internal surfaces on four branch end faces 45 of I- shaped rotor 20 and 47,46 and 48, and damping roller 2 and 24, the width between 9 and 16 (seeing the W2 among Fig. 4 and Fig. 5 for details) are less than the spacing (seeing the W1 among Fig. 4 and Fig. 5 for details) between stator 5 two ends end caps 11 and 26 on four branch end faces 45 of I- shaped rotor 20 and 47,46 and 48; Rotating shaft 31 has central through bore 32, on the rotor 20 field coil 4,6,19 and 21 lighting outlet 30 center hole 32 through rotating shaft 31 lead to stator 5 outer with control power supply 29 and be connected.
Combine accompanying drawing that a kind of magnetic rheology elastic body rotary type damper of the utility model is further described now: referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8; At control power supply 29 not on rotor 20 when field coil 4,6,19 and 21 output currents; There is not the magnetic line of force to pass through the magnetic rheology elastic body 10 and 25 on stator 5 two ends end caps 11 and 26 internal surfaces; Therefore; Magnetic rheology elastic body 10 on stator 5 two ends end caps 11 and 26 internal surfaces and 25 elasticity are less; On the rotor 20 on damping roller 2 and 24,9 and 16 roll extrusion stators, 5 two ends end caps 11 and 26 internal surfaces magnetic rheology elastic body 10 and 25 will receive less pressure; Damping due to rotation power suffered when rotating shaft 14 drive rotors 20 are turned clockwise in stator 5 is less, and the magnetic rheology elastic body 10 on stator 5 two ends end caps 11 and 26 internal surfaces and 25 returns to normal after being flattened by damping roller 2 and 24,9 and 16 immediately; When controlling power supply 29 behind field coil on the rotor 20 4,6,19 and 21 output currents; Rotor 20 will generate an electromagnetic field; Because of stator 5 two ends end caps 11 and 26, rotor 20 and damping roller 2 and 24,9 and 16 constitute by permeability magnetic material; So the magnetic rheology elastic body 10 on damping roller 2 and 24,9 and 16, stator 5 two ends end caps 11 and 26 internal surfaces on four branch end end faces 45 of four branch ends 3 that the magnetic line of force that rotor 20 electromagnetic fields produce can be through rotor 20 and 7,18 and 22 end face 45 and 47,46 and 48, rotor 20 and 47,46 and 48 and 25 and stator 5 two ends end caps 11 and 26 formation closed magnetic circuits (see for details: Fig. 6); Make damping roller 2 and 24 on four branch end end faces 45 and 47,46 and 48 of end face 45 and 47,46 and 48, rotor 20 of four branch ends 3 being in rotor 20 and 7,18 and 22,9 and 16 and stator 5 two ends end caps 11 and 26 internal surfaces between magnetic rheology elastic body 10 and 25 in ferromagnetic particle form chain or column aggregated structure and make its elasticity higher and " curing " at magnetic direction; Therefore; When the damping roller 2 and 24,9 and 16 on four branch end end faces 45 and 47,46 and 48 of rotor 20 will receive bigger pressure during by the magnetic rheology elastic body 10 of " curing " and 25 on roll extrusion stator 5 two ends end caps 11 and 26 internal surfaces; Damping due to rotation power suffered when rotating shaft 14 drive rotors 20 are turned clockwise in stator 5 is bigger; And the magnetic rheology elastic body 10 on stator 5 two ends end caps 11 and 26 internal surfaces and 25 by damping roller 2 and 24,9 and 16 roll extrusion on four branch end end faces 45 of rotor 20 and 47,46 and 48 flat after; Owing to the influence of the electromagnetic field of four branch end end faces 45 that receive rotor 20 and 47,46 and 48 is difficult to return to normal, having only just can return to normal after four branch end end faces 45 and 47,46 and 48 of rotor 20 leave this zone (sees for details: 51,52,53 and 54 among Fig. 7 and Fig. 8); If rotor 20 continues rotation; The magnetic rheology elastic body 10 that has then returned to normal on stator 5 two ends end caps 11 and 26 internal surfaces and 25 will so be gone round and begun again by (electromagnetic field of the rotor 20 that turns over) " curing " and by damping roller 2 and 24,9 and 16 roll extrusion on 20 4 branch end end faces 45 of rotor and 47,46 and 48 once more.Situation when rotating shaft 14 drive rotors 20 are rotated counterclockwise motion in stator 5 is similar with it, repeats no more here.
Claims (3)
1. magnetic rheology elastic body rotary type damper, it comprises: stator, rotor, damping roller and two rotating shafts is characterized in that: said stator is a cylindrical shape, all is provided with end cap at the stator two ends, in the center hole of end cap, bearing is installed; The internal surface of said stator two ends end cap has all been fixed one deck magnetic rheology elastic body; Said rotor is I-shaped; On I-shaped rotor, be wound with field coil; The groove of a half cone-shaped is all arranged at the middle part of four branch end faces of I-shaped rotor, and the shaft axis of half cone-shaped groove is on the diameter of stator, and the diameter of half cone-shaped groove is greater than the diameter of damping roller; Said damping roller is conical, in the half cone-shaped groove that the damping roller is installed in; One end of said two rotating shafts and the two ends of I-shaped rotor are fixed, and the other end of two rotating shafts stretches out in stator through the bearing on the end cap of stator two ends respectively; Said rotor is installed in the stator; Width between four branch end faces of I-shaped rotor is less than the spacing between the magnetic rheology elastic body on the end cap internal surface of stator two ends; Width on four branch end faces of I-shaped rotor between the damping roller is greater than the spacing between the magnetic rheology elastic body on the end cap internal surface of stator two ends, and the width on four branch end faces of I-shaped rotor between the damping roller is less than the spacing between the end cap of stator two ends.
2. a kind of magnetic rheology elastic body rotary type damper as claimed in claim 1 is characterized in that: the end cap at said stator two ends, rotor and damping roller constitute by permeability magnetic material.
3. a kind of magnetic rheology elastic body rotary type damper as claimed in claim 1; It is characterized in that: wherein rotating shaft of said two rotating shafts has central through bore; The lighting outlet of rotor excitation coil leads to outside the stator through the center hole of rotating shaft, and said two rotating shafts are made up of non-magnet_conductible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200630144U CN202441803U (en) | 2012-02-26 | 2012-02-26 | Magnetorheological elastomer rotating damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200630144U CN202441803U (en) | 2012-02-26 | 2012-02-26 | Magnetorheological elastomer rotating damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441803U true CN202441803U (en) | 2012-09-19 |
Family
ID=46823255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200630144U Expired - Lifetime CN202441803U (en) | 2012-02-26 | 2012-02-26 | Magnetorheological elastomer rotating damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441803U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562898A (en) * | 2012-02-26 | 2012-07-11 | 谢宁 | Rotary damper with magnetorheological elastomers |
| CN104747651A (en) * | 2015-01-28 | 2015-07-01 | 合肥工业大学 | Paralleling model semi-active vibration isolator |
-
2012
- 2012-02-26 CN CN2012200630144U patent/CN202441803U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562898A (en) * | 2012-02-26 | 2012-07-11 | 谢宁 | Rotary damper with magnetorheological elastomers |
| CN102562898B (en) * | 2012-02-26 | 2013-09-04 | 刘安成 | Rotary damper with magnetorheological elastomers |
| CN104747651A (en) * | 2015-01-28 | 2015-07-01 | 合肥工业大学 | Paralleling model semi-active vibration isolator |
| CN104747651B (en) * | 2015-01-28 | 2016-07-20 | 合肥工业大学 | A kind of paralleling model semi-active vibration-isolating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103821861B (en) | Axial eddy current damper based on spiral transmission method | |
| CN106969090B (en) | The magnetorheological half active torsional vibration damper integrated with active adjusted based on electromagnetism | |
| CN104578632A (en) | Electric machine | |
| CN102341609A (en) | Apparatus for transmitting torque | |
| CN101737449A (en) | Screw rod type magnetorheological rotary damper | |
| CN201627871U (en) | Double-ejector rod self-adaptation double-control magnetic current damper | |
| CN104333197A (en) | Electromechanical integration magnetic field modulation type magnetic gear | |
| CN202418403U (en) | Magneto-rheologic elastic body rotary type magneto-rheologic damper | |
| CN104953779A (en) | Magnetic gear low-speed large-torque motor | |
| CN204253727U (en) | The torsional vibration damper that a kind of damping is adjustable | |
| CN101718324B (en) | Wobble wheel rotary magneto-rheological damper | |
| CN202441803U (en) | Magnetorheological elastomer rotating damper | |
| CN102562923A (en) | Rotary magnetorheological damper with magnetorheological elastomer | |
| CN202441802U (en) | Rotary damper for magnetorheological elastomer | |
| CN102562898B (en) | Rotary damper with magnetorheological elastomers | |
| CN102537192B (en) | Rotary damper with magnetorheological elastomer | |
| CN102606668B (en) | Swinging rotary damper of magnetorheological elastomer | |
| CN108506376A (en) | A kind of New Rotary magnetic rheological brake | |
| CN103414313B (en) | Centrifugal magnetic transmission device | |
| CN202418404U (en) | Rotary magnetorheological damper for magnetorheological elastomer | |
| CN101832355A (en) | Double-out-rod adaptive double-control magneto-rheological damper | |
| CN201866135U (en) | Braking device based on magnetorheological fluid | |
| CN102562897A (en) | Double-outlet rod magnet rheologic elastic body damper | |
| CN205383131U (en) | Built -in magneto -rheological fluid brake's pendulum actuating cylinder | |
| CN207906318U (en) | A kind of haptic device magnetic rheological brake encouraged using permanent magnet and magnet exciting coil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120919 Effective date of abandoning: 20130904 |
|
| RGAV | Abandon patent right to avoid regrant |