CN102606671A - Bearing damping device with magnetorheological elastomer - Google Patents
Bearing damping device with magnetorheological elastomer Download PDFInfo
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- CN102606671A CN102606671A CN201210085735XA CN201210085735A CN102606671A CN 102606671 A CN102606671 A CN 102606671A CN 201210085735X A CN201210085735X A CN 201210085735XA CN 201210085735 A CN201210085735 A CN 201210085735A CN 102606671 A CN102606671 A CN 102606671A
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- magnetic
- electromagnet
- elastic body
- rheology elastic
- guiding loop
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- 238000013016 damping Methods 0.000 title claims abstract description 30
- 229920001971 elastomer Polymers 0.000 title abstract 5
- 239000000806 elastomer Substances 0.000 title abstract 5
- 230000005291 magnetic effect Effects 0.000 claims abstract description 99
- 239000000463 material Substances 0.000 claims abstract description 4
- 230000035699 permeability Effects 0.000 claims abstract description 4
- 238000000518 rheometry Methods 0.000 claims description 35
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 230000005672 electromagnetic field Effects 0.000 description 5
- 230000005284 excitation Effects 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a bearing damping device with a magnetorheological elastomer, which comprises a magnetic conducting ring, the magnetorheological elastomer and a structurally annular electromagnet. At least three pairs of magnetic poles are evenly distributed on the inner circumference of the electromagnet; the magnetic conducting ring is made of materials with high magnetic permeability; the magnetorheological elastomer is fixed onto the outer circumferential surface of the magnetic conducting ring; and the electromagnet is fixed onto the outer circumference of the magnetorheological elastomer.
Description
Technical field
The present invention relates to a kind of bearing vibration damping equipment, be specifically related to magnetic rheology elastic body bearing vibration damping equipment.
Background technique
Rotatablely move and to produce vibration; When this vibration that is produced by rotary load is delivered on the bearing through rotating shaft, produced radial vibration with regard to making the bearing that carries rotary load, what the amplitude of this radial vibration and frequency also can be because of the torque of rotary load or rotating speeds is different; This radial vibration leads to a disaster as not suppressing to cause the destruction of bearing; Therefore, people attach great importance to for the vibration damping of bearing, except bearing is adopted the high-precision processing; Also adopt steel and high polymer composite material sandwich structure to carry out vibration damping as the methods such as outer ring of bearing; Though these vibration reducing measures have certain effect to the vibration damping and the noise reduction of bearing, because this type vibration reducing measure is in case after accomplishing, the damping property of bearing also is fixed; Because rotary load can produce different amplitudes and different frequency under different rotating speed and torque condition vibration adopts existing bearing vibration reducing measure then to be difficult to adjust according to the different rotating speeds of rotary load in good time.
Summary of the invention
The objective of the invention is to the deficiency to existing bearing damping technology existence, propose a kind of magnetic rheology elastic body bearing vibration damping equipment, this device can come its damping property of timely adjustment through the size of regulating electromagnetic field intensity.
Technological scheme of the present invention is following:
A kind of magnetic rheology elastic body bearing vibration damping equipment; It is made up of magnetic guiding loop, magnetic rheology elastic body and electromagnet, and wherein: the structure of electromagnet is a ring, on the inner circumference of electromagnet, is evenly equipped with at least three pairs of magnetic poles; Magnetic guiding loop is made up of high permeability material; On the outer peripheral surface of magnetic guiding loop, fixed one deck magnetic rheology elastic body, electromagnet is fixed on the excircle of magnetic rheology elastic body, and the width of magnetic rheology elastic body is not less than the thickness of electromagnet on magnetic guiding loop and the magnetic guiding loop outer peripheral surface.
Function of the present invention be achieved in that magnetic rheology elastic body bearing vibration damping equipment of the present invention be with the Bearing Installation that needs vibration damping in magnetic guiding loop; Fixed one deck magnetic rheology elastic body on the outer peripheral surface because of magnetic guiding loop; And on the excircle of this one deck magnetic rheology elastic body, fixed the electromagnet that has three pairs of magnetic poles at least; Like this; In case after the electromagnet energising; The magnetic line of force that each magnetic pole of electromagnet produces will form closed magnetic circuit through magnetic rheology elastic body and the magnetic guiding loop of each pole bore of electromagnet on week; The direction of the magnetic line of force that produces because of each magnetic pole of electromagnet is for radially, and this magnetic line of force can make the ferromagnetic particle in the magnetic rheology elastic body on the magnetic guiding loop excircle form chain or column aggregated structure and make its hardness increase on this direction in magnetic line of force direction (promptly radially), therefore; Electromagnetic field intensity through each magnetic pole of adjustment electromagnet can be adjusted the hardness level that is in the magnetic rheology elastic body between magnetic guiding loop outer peripheral surface and each magnetic pole strength of electromagnet, thereby the vibration that bearing is produced on all directions radially suppresses.
Compare with existing bearing vibration damping mode; Because of the damping property of magnetic rheology elastic body bearing vibration damping equipment can be regulated through the intensity size of adjustment electromagnetic field; Therefore, magnetic rheology elastic body bearing vibration damping equipment not only can provide fixing damping property, but also can suitable damping property be provided according to the rotary load different operation states; Therefore, magnetic rheology elastic body bearing vibration damping equipment can carry out intelligent vibration damping to operating rotary load.
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 schematic representation of the field coil wiring of electromagnet among the present invention.
Dotted line among Fig. 4 is the magnetic circuit schematic representation that the electromagnetic field of field coil energising of the present invention back electromagnet generation forms.
Fig. 5 is the present invention when work, and bearing is installed the schematic representation of distribution with vibration transducer.
Fig. 6 is the sectional view of Fig. 5.
Fig. 7 is the schematic representation of vibration transducer and field coil wiring among Fig. 5
Work schematic representation when Fig. 8 is driven rotary of the present invention load.
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 magnetic rheology elastic body bearing vibration damping equipment 1 is made up of magnetic guiding loop 5, magnetic rheology elastic body 4 and electromagnet 2, and wherein: the structure of electromagnet 2 is a ring; On the inner circumference of electromagnet 2, be evenly equipped with four pairs of magnetic poles (that is: eight magnetic poles); Magnetic guiding loop 5 is made up of high permeability material, on the outer peripheral surface of magnetic guiding loop 5, has fixed one deck magnetic rheology elastic body 4, and electromagnet 2 is fixed on the excircle of magnetic rheology elastic body 4; On each magnetic pole of electromagnet 2, all be wound with field coil 3; Between each magnetic pole of electromagnet 2 and the gap of each magnetic pole excitation coil 3 be filled with non-magnetic insulating material 14, each field coil 3 is connected (seeing Fig. 3 for details) through lighting outlet with controller 6, and the width of magnetic rheology elastic body 4 is identical with the thickness of electromagnet 2 on magnetic guiding loop 5 and magnetic guiding loop 5 outer peripheral surfaces; When controller 6 during to each field coil 3 output currents of electromagnet 2 each magnetic pole; The magnetic line of force that electromagnet 2 each magnetic pole produce will form closed magnetic circuit (seeing Fig. 4 for details) through the magnetic rheology elastic body 4 of electromagnet 2 each pole bore on week and magnetic guiding loop 5; The magnetic line of force direction that produces because of each magnetic pole of electromagnet 2 is for radially; This magnetic line of force can make the ferromagnetic particle in the magnetic rheology elastic body 4 on magnetic guiding loop 5 outer peripheral surfaces form chain or column aggregated structure and its hardness on this direction is increased in magnetic line of force direction (promptly radially); Therefore, the hardness level that can adjust on the magnetic rheology elastic body 4 that is between magnetic guiding loop 5 outer peripheral surfaces and electromagnet 2 each magnetic pole strength through the electromagnetic field intensity of adjustment electromagnet 2 each magnetic pole is carried out vibration suppression.
Combine Fig. 5, Fig. 6, Fig. 7 and Fig. 8 to come should being used as of a kind of magnetic rheology elastic body bearing vibration damping equipment 1 of the present invention further described now: will need the bearing 9 of vibration damping to be installed in the magnetic guiding loop 5; The corresponding electromagnet of toroidal surface 2 each magnetic pole place at magnetic guiding loop 5 are equipped with vibration transducer 7 (seeing Fig. 5 and Fig. 6 for details); Each vibration transducer 7 is connected (see Fig. 7) through lighting outlet with controller 6 with field coil 3; Prime mover 11 is connected with rotary load 8 through shaft joint 10; The axle at rotary load 8 two ends is installed on magnetic rheology elastic body bearing vibration damping equipment 12 and 13 through bearing 9, and each vibration transducer 7 is connected (see Fig. 8) through lighting outlet with controller 6 with field coil 3 on the magnetic rheology elastic body bearing vibration damping equipment 12 and 13; The vibration that when 8 rotations of prime mover 11 driven rotary load, produces makes bearing 9 produce radial vibration; Controller 6 is through the vibration transducer 7 of magnetic guiding loop 5 toroidal surfaces on bearing 9 excircles; After measuring the direction and amplitude of bearing 9 radial vibrations; Adjustment in good time gets into the size of current of electromagnet 2 each magnetic pole excitation coil 3, and the hardness that is in the magnetic rheology elastic body 4 between magnetic guiding loop 5 outer peripheral surfaces and electromagnet 2 each magnetic pole strength is changed, and the vibration that rotary load 8 is produced is inhibited.
Claims (2)
1. magnetic rheology elastic body bearing vibration damping equipment, it comprises magnetic guiding loop, magnetic rheology elastic body and electromagnet, it is characterized in that: the structure of said electromagnet is a ring, on the inner circumference of electromagnet, is evenly equipped with at least three pairs of magnetic poles; Said magnetic guiding loop is made up of high permeability material, on the outer peripheral surface of magnetic guiding loop, has fixed one deck magnetic rheology elastic body; Said electromagnet is fixed on the excircle of magnetic rheology elastic body.
2. a kind of magnetic rheology elastic body bearing vibration damping equipment as claimed in claim 1, it is characterized in that: the width of magnetic rheology elastic body is not less than the thickness of electromagnet on said magnetic guiding loop and the magnetic guiding loop outer peripheral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210085735XA CN102606671A (en) | 2012-03-28 | 2012-03-28 | Bearing damping device with magnetorheological elastomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210085735XA CN102606671A (en) | 2012-03-28 | 2012-03-28 | Bearing damping device with magnetorheological elastomer |
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| Publication Number | Publication Date |
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| CN102606671A true CN102606671A (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210085735XA Pending CN102606671A (en) | 2012-03-28 | 2012-03-28 | Bearing damping device with magnetorheological elastomer |
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| CN (1) | CN102606671A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773046A (en) * | 2014-01-10 | 2015-07-15 | 福特环球技术公司 | Bearing device for twist beam axle and twist beam axle |
| CN104948648A (en) * | 2015-07-13 | 2015-09-30 | 涂建维 | Device for improving deformability of magnetorheological elastomer vibration absorber |
| CN105673685A (en) * | 2016-03-14 | 2016-06-15 | 西安理工大学 | Active regulating and controlling device for bearing clearance of high-speed spindle system |
| CN107191529A (en) * | 2017-03-27 | 2017-09-22 | 上海交通大学 | A kind of magnetic rheology elastic body thrust bearing pedestal dynamic vibration absorber and application method |
| CN107588432A (en) * | 2017-08-31 | 2018-01-16 | 上海大众祥源动力供应有限公司 | A kind of air intake equipment of gas fired-boiler |
| CN108071731A (en) * | 2018-02-01 | 2018-05-25 | 华东交通大学 | A kind of magnetorheological bump leveller using multiple magnet exciting coil radial arrangements |
| CN108278319A (en) * | 2017-12-01 | 2018-07-13 | 北京理工大学 | A kind of dynamical system broadband magnetic rheology elastic body dynamic tuning bump leveller |
| CN108412941A (en) * | 2018-04-27 | 2018-08-17 | 山东科技大学 | Three-dimensional mixes controllable type magnetic rheological liquid damper |
| CN110236268A (en) * | 2019-05-08 | 2019-09-17 | 金晴 | A kind of multifunctional intellectual home wiring control walking stick |
| CN114623187A (en) * | 2022-04-25 | 2022-06-14 | 重庆大学 | Industrial pipeline high-frequency vibration damper based on magnetorheological fabric |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258553Y (en) * | 1994-04-18 | 1997-07-30 | 山东建筑材料工业学院 | Damping force controllable magnetic puwder vibration-damper |
| CN1372086A (en) * | 2001-02-28 | 2002-10-02 | 汪建晓 | Magnetic flow change liquid damper for control of rotary machinery rotor vibration |
| US20040022467A1 (en) * | 2002-04-04 | 2004-02-05 | Robb Scott B. | Center bearing assembly including a support member containing a rheological fluid |
| CN202510616U (en) * | 2012-03-28 | 2012-10-31 | 谢宁 | Vibration damping device of magnetorheological elastomeric bearing |
-
2012
- 2012-03-28 CN CN201210085735XA patent/CN102606671A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258553Y (en) * | 1994-04-18 | 1997-07-30 | 山东建筑材料工业学院 | Damping force controllable magnetic puwder vibration-damper |
| CN1372086A (en) * | 2001-02-28 | 2002-10-02 | 汪建晓 | Magnetic flow change liquid damper for control of rotary machinery rotor vibration |
| US20040022467A1 (en) * | 2002-04-04 | 2004-02-05 | Robb Scott B. | Center bearing assembly including a support member containing a rheological fluid |
| CN202510616U (en) * | 2012-03-28 | 2012-10-31 | 谢宁 | Vibration damping device of magnetorheological elastomeric bearing |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773046A (en) * | 2014-01-10 | 2015-07-15 | 福特环球技术公司 | Bearing device for twist beam axle and twist beam axle |
| CN104773046B (en) * | 2014-01-10 | 2019-06-07 | 福特环球技术公司 | Bearing arrangement and composite braces axis for composite braces axis |
| CN104948648A (en) * | 2015-07-13 | 2015-09-30 | 涂建维 | Device for improving deformability of magnetorheological elastomer vibration absorber |
| CN105673685A (en) * | 2016-03-14 | 2016-06-15 | 西安理工大学 | Active regulating and controlling device for bearing clearance of high-speed spindle system |
| CN105673685B (en) * | 2016-03-14 | 2017-12-29 | 西安理工大学 | A kind of active regulation device of the bearing clearance of high-speed spindle system |
| CN107191529A (en) * | 2017-03-27 | 2017-09-22 | 上海交通大学 | A kind of magnetic rheology elastic body thrust bearing pedestal dynamic vibration absorber and application method |
| CN107191529B (en) * | 2017-03-27 | 2019-03-22 | 上海交通大学 | A kind of magnetic rheology elastic body thrust bearing pedestal dynamic vibration absorber and application method |
| CN107588432A (en) * | 2017-08-31 | 2018-01-16 | 上海大众祥源动力供应有限公司 | A kind of air intake equipment of gas fired-boiler |
| CN108278319A (en) * | 2017-12-01 | 2018-07-13 | 北京理工大学 | A kind of dynamical system broadband magnetic rheology elastic body dynamic tuning bump leveller |
| CN108071731B (en) * | 2018-02-01 | 2024-03-01 | 华东交通大学 | A magnetorheological vibration absorber using multiple excitation coils arranged radially |
| CN108071731A (en) * | 2018-02-01 | 2018-05-25 | 华东交通大学 | A kind of magnetorheological bump leveller using multiple magnet exciting coil radial arrangements |
| CN108412941A (en) * | 2018-04-27 | 2018-08-17 | 山东科技大学 | Three-dimensional mixes controllable type magnetic rheological liquid damper |
| CN108412941B (en) * | 2018-04-27 | 2024-06-18 | 山东科技大学 | Three-way hybrid controllable magnetorheological fluid damper |
| CN110236268A (en) * | 2019-05-08 | 2019-09-17 | 金晴 | A kind of multifunctional intellectual home wiring control walking stick |
| CN114623187A (en) * | 2022-04-25 | 2022-06-14 | 重庆大学 | Industrial pipeline high-frequency vibration damper based on magnetorheological fabric |
| CN114623187B (en) * | 2022-04-25 | 2024-06-04 | 重庆大学 | Industrial pipeline high-frequency vibration damper based on magnetorheological fabric |
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Application publication date: 20120725 |