CN206972815U - A kind of rotary-type drum type brake magnetic rheological liquid damper of ultrasonic field and magnetic coupling effect - Google Patents
A kind of rotary-type drum type brake magnetic rheological liquid damper of ultrasonic field and magnetic coupling effect Download PDFInfo
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- CN206972815U CN206972815U CN201720845740.4U CN201720845740U CN206972815U CN 206972815 U CN206972815 U CN 206972815U CN 201720845740 U CN201720845740 U CN 201720845740U CN 206972815 U CN206972815 U CN 206972815U
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- 239000007788 liquid Substances 0.000 title claims abstract description 104
- 230000001808 coupling effect Effects 0.000 title claims abstract description 14
- 238000010008 shearing Methods 0.000 claims abstract description 30
- 239000000919 ceramic Substances 0.000 claims abstract description 25
- 230000010355 oscillation Effects 0.000 claims abstract description 16
- 230000005284 excitation Effects 0.000 claims abstract description 8
- 230000004907 flux Effects 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 12
- 239000004952 Polyamide Substances 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 238000013016 damping Methods 0.000 abstract description 14
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- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000002604 ultrasonography Methods 0.000 description 7
- 238000011056 performance test Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
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- 229910052742 iron Inorganic materials 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
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- 229910000831 Steel Inorganic materials 0.000 description 3
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- 230000008859 change Effects 0.000 description 3
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- 239000000696 magnetic material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
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Abstract
A kind of rotary-type drum type brake magnetic rheological liquid damper of ultrasonic field and magnetic coupling effect, it is characterised in that：It is cylindrical that rectangular piezoelectric ceramic piece is pasted onto drum type brake stator, and energization vibrational excitation goes out stator B (0, n) mode of oscillations and applies ultrasonic field to magnetic flow liquid in shearing chamber.Damper magnetic flow liquid is operated under drum type brake shear mode, can produce larger and reliable braking moment to the rotating shaft of input rotation.Under zero magnetic field mode of operation, the influence of magnetic flow liquid null field damping countershaft can be reduced by applying ultrasonic field to magnetic flow liquid；Under non-null field mode of operation, control different excitation signal can produce varying strength ultrasonic field and magnetic field with accuracy controlling magnetorheological fluid damp, so as to which countershaft rotary speed and any angle are accurately controlled.The utility model damper structure simple and compact, action response is fast, and damp adjustable range is wide and accurate.
Description
Technical field
Ultrasonic near field is the utility model is related to answer microscopic particles manipulation permutation technology and magnetic rheological fluid intelligent material
With technology, more particularly, to based on magnetic-particle in the magnetic flow liquid under ultrasonic near field and magnetic coupling and rheological phenomena application skill
Art and magnetic flow liquid viscosity accurate adjustment technology.
Background technology
Magnetic flow liquid is a kind of controllable novel intelligent material of rheological behavior, has response fast（Millisecond）, damping it is continuous
It is adjustable, energy consumption is low etc., and good characteristics are widely used in vibration control field, but be all to be only limitted to magnetic flow liquid in single magnetic field
Various dampers are made in the lower adjustable characteristic of damping.However, with magnetic rheological liquid damper application it is more and more extensive, in difference
Field have different performance requirements.Because magnetic flow liquid viscosity is exceedingly fast with the increased response in magnetic field, but in some applications
It is required that（Such as attitude of flight vehicle adjustment）The damping of magnetic rheological liquid damper can accuracy controlling and adjustable range it is more extensive.
On the Research foundation of magnetic rheology effect control under existing ultrasonic field and magnetic coupling, applicant expands magnetic rheological liquid damper
Modification scope, utility model is a kind of to be damped accurate adjustable and null field and damps small rotary-type drum type brake magnetorheological fluid damp
Device.
Therefore magnetorheological fluid damp accurate adjustment technical field blank and cost and high efficient and reliable are considered, devise one kind
Ultrasonic field and the rotary-type drum type brake magnetic rheological liquid damper of magnetic coupling effect realize rotating shaft rotary speed and at any angle
Accurate control, for the pose adjustment of aircraft.The damper can act also as the magnetic current under ultrasonic field and magnetic coupling effect
Become the test device of liquid flow variation characteristic, can magnetic flow liquid study mechanism of the large-scale application under multi- scenarios method.
Utility model content
The purpose of this utility model is the problem of for existing damper being single control：Design a kind of ultrasonic field and magnetic
The rotary magnetorheological fluid damper of coupling, by ultrasonic near field workpiece and magnetorheological workpiece be combined come
Freely rotating and control at any angle at a high speed for rotating shaft is realized, whole damper response is fast easy to control, simple and compact for structure, speed
Degree change continuously adjustabe, expand the damp adjustable range of magnetic flow liquid.
The technical solution of the utility model is：
A kind of rotary-type drum type brake magnetic rheological liquid damper of ultrasonic field and magnetic coupling effect, it is characterised in that it includes
A set of ultrasonic near field generating assembly and set of excitation component, if described ultrasonic near field generating assembly includes dry plate piezoelectric ceramic piece
20, it is cylindrical that piezoelectric ceramic piece 20 is uniformly affixed on drum type brake stator 8, and energization motivates stator B (0,4) mode of oscillations to shearing chamber 7
Middle magnetic flow liquid applies ultrasonic field；The clip position of stator 8 is distributed on vibration node line position to reduce the interference to mode of oscillation；It is fixed
Unilateral gap is left between son 8 and flux sleeve 18, the magnetic flow liquid for being consequently formed drum type brake shears the magnetic flow liquid of chamber 7 to flux sleeve 18
Apply control moment, flux sleeve 18 is arranged in rotating shaft 1；Magnetic flow liquid shearing chamber 7 both ends are mounted on sealing ring with to magnetic current
Become liquid and carry out dynamic sealing；Described excitation component includes coil 16 and flux sleeve 18, and flux sleeve 18 is arranged in rotating shaft 1 with enhancing
The magnetic conductivity on rotating shaft surface；Magnet exciting coil 16 and polyamide skeleton 15 are assemblied on magnetic conduction bearing cup 13, and magnetic conduction bearing cup 13 with
Ring flange 11 by screw fasten and alignd with flux sleeve 18 so that magnetic induction line 17 caused by coil 16 be perforated through it is magnetorheological
Liquid is sheared chamber 7 and formed successively by stator 8, flux sleeve 18, magnetic conduction bearing cup 13, ring flange 11, magnetic conduction shell 9 and magnetic conductive cover 6
Closed-loop path；Ring flange 11 is provided with the boss 14 of radial positioning and the hole 12 for coil lead；Coil 16 is embedded in magnetic conduction shell 9
In；The inside spring bearing 25 of end cap 3, outside are provided with magnetic flow liquid added holes 24, and magnetic flow liquid added holes 24 is cut with magnetic flow liquid
Chamber 7 is cut to align.
Described piezoelectric ceramic piece 20 and its wire scribble silica gel, and the both ends of stator 8 are sealed using O-ring seal, with
Reduce the interference to mode of oscillation.
The unilateral gap left between described stator 8 and flux sleeve 18 is 2mm.
Described flux sleeve 18 is using being glued or being mechanically rigidly connected in rotating shaft 1, so as to which countershaft exports
Control moment from magnetic flow liquid.
The space 21 of the circumferential lead for piezoelectric ceramic piece is left in the described inner side of magnetic conductive cover 6, and lead is finally through end cap
Upper fairlead 22 is drawn.
Application method of the present utility model is：
A kind of application method of the rotary-type drum type brake magnetic rheological liquid damper of ultrasonic field and magnetic coupling effect, its feature
It is：It is cylindrical that rectangular piezoelectric ceramic piece is affixed on drum type brake stator, is powered vibration to motivate stator B (0, n) mode of oscillations to shearing
Magnetic flow liquid applies ultrasonic field in chamber；Damper magnetic flow liquid is operated under drum type brake shear mode, is applied to magnetic flow liquid strong
Controllable ultrasonic field and magnetic field are spent, controllable and reliable damping brake torque can be produced to the rotating shaft of input rotation；Cut off excitation wire
Electric signal is enclosed, magnetic flow liquid is under zero magnetic field mode of operation, piezoelectric ceramic piece electric signal is now connected and is applied to magnetic flow liquid
Add ultrasonic field, the influence of magnetic flow liquid null field damping countershaft can be reduced；Magnet exciting coil electric signal is connected, now magnetic flow liquid work
Make under non-zero magnetic field pattern, control piezoelectric ceramic piece can produce varying strength with the different size of pumping signal of magnet exciting coil and surpass
Sound field and magnetic field are with accuracy controlling magnetorheological fluid damp, so as to which countershaft speed is accurately controlled.
Stator is made using strong permeability magnetic material electrical pure iron, and flux sleeve is equipped with rotating shaft to strengthen the magnetic conductance on rotating shaft surface
Rate, flux sleeve using splicing or are threadedly coupled with rotating shaft；Magnet exciting coil and its polyamide skeleton are assemblied on magnetic conduction bearing cup, and are led
Magnetic axis bearing cup is fastened with ring flange by screw.Magnetic induction line caused by coil is perforated through shearing chamber and successively by stator, magnetic conduction
Set, magnetic conduction bearing cup, ring flange, magnetic conduction shell and magnetic conductive cover form closed-loop path；Conducting parts are pure by the electrician of strong magnetic conductivity
Iron, ring flange is obtained by steel, and end cap is made by the brass of high magnetic resistance, high except leaving necessary solder joint in whole electromagnetic circuit
Ensure close connection outside degree, gyration aperture and stator piezoelectric ceramic piece lead space to reduce magnetic resistance and magnetic leakage.
Coil rack is made using nylon, and nylon material has higher heat resistance；Exoskeletal coil can also be designed, is protected
Demonstrate,prove good heat transfer effect.
Rotating shaft shearing shaft end is hollow shaft section, and is connected with magnetic flow liquid shearing chamber 7, for storing unnecessary magnetic flow liquid
While can also increase area of dissipation, extend damper working life.
Damper of the present utility model, can be as the core work portion in the cylinder shearing performance test system of magnetic flow liquid
Part, for the magnetic flow liquid cylinder type shearing performance test and study mechanism under ultrasound and magnetic coupling.
It is near that the rotary magnetorheological fluid damper of ultrasonic field and magnetic coupling effect of the present utility model includes a ultrasound
Field generating assembly（Its FEM model such as Fig. 2）, it is cylindrical that rectangular piezoelectric ceramic piece is uniformly pasted on drum type brake stator, is powered to swash
Encourage out stator B (0, n) mode of oscillations and ultrasonic field, stator mode of oscillation such as Fig. 3 are applied to magnetic flow liquid in shearing chamber.The folder of stator
Hold position and be distributed in vibration node line position to reduce the influence to mode of oscillation.In order to meet seal request, piezoelectric ceramic piece and
Its wire should apply silica gel sealing and stator end is sealed using O-ring seal, this to be similar to constraint of the compliant mechanism to stator
It is small, it can also reduce the interference to stator mode of oscillation.Stator leaves gap with magnetic conduction inner room, is consequently formed the magnetorheological of drum type brake
Liquid shearing work chamber.Magnetic flow liquid applies control moment to flux sleeve, and flux sleeve is assemblied in rotating shaft, both using being glued or
Screw thread etc. is mechanically rigidly connected, and rotating shaft is exported the control moment from magnetic flow liquid.Shearing chamber both ends use lip packing
Circle carries out dynamic sealing to magnetic flow liquid.Due to the presence of leakage field, the magnetic flow liquid viscosity in gap is larger, and itself is also played
A certain degree of sealing function.
In electromagnetic circuit, stator and each magnetic conductive part are made using strong permeability magnetic material electrical pure iron, and rotating shaft is equipped with
Flux sleeve is to strengthen the magnetic conductivity on rotating shaft surface.Magnet exciting coil and its polyamide skeleton are assemblied on magnetic conduction bearing cup, and magnetic conductive axis
Bearing cup is fastened by screw with ring flange and alignd with flux sleeve.This causes magnetic induction line caused by magnet exciting coil to penetrate shearing chamber simultaneously
Successively closed-loop path is formed by stator, magnetic flow liquid, flux sleeve, magnetic conduction bearing cup, ring flange, magnetic conduction shell and magnetic conductive cover.It is whole
Ensure tightly in addition to leaving necessary solder joint height, gyration aperture and stator piezoelectric ceramic piece lead space in individual electromagnetic circuit
It is close to connect to reduce magnetic resistance and magnetic leakage.Ring flange is by steel, and for convenience of being connected with external system, ring flange is designed with radial positioning
Boss.Among magnet exciting coil can use multipair form insertion magnetic conduction shell, this had both taken full advantage of magnetic conductor inner space, and reduction is led
The use of magnetic shell material, it can also increase the area of dissipation of coil.The end cap on damper head is made by brass, cover internal support
Bearing, exterior design has the added holes of magnetic flow liquid and aligned with magnetic flow liquid shearing chamber, when it is implemented, using syringe
After injecting magnetic flow liquid to added holes, added holes is sealed with screw and sealing gasket.Also the space inside rotating shaft can be made full use of,
To store unnecessary magnetic flow liquid, increase its area of dissipation.Certain space is left on the inside of magnetic conductive cover and is used for piezoelectric ceramics
The circumferential lead of piece, wire eventually pass through fairlead on end cap and drawn.
Damper magnetic flow liquid is operated under drum type brake shear mode, applies intensity controlled ultrasonic field and magnetic to magnetic flow liquid
, controllable and reliable damping brake torque can be produced to the rotating shaft for inputting rotary motion.Magnet exciting coil electric signal is cut off, makes magnetic
Under the magnetic field mode of operation of rheology liquid zero, now piezoelectric ceramic piece is powered and applies ultrasonic field to magnetic flow liquid, magnetic current can be reduced
Become the influence of liquid null field damping countershaft；Magnet exciting coil electric signal is connected, magnetic flow liquid is operated under non-zero magnetic field pattern, is controlled
The pumping signal of piezoelectric ceramic piece and magnet exciting coil processed can produce varying strength ultrasonic field and magnetic field with accuracy controlling magnetic flow liquid
Damping, so as to which countershaft speed is accurately controlled.The utility model damper structure is simple, and small volume, action response is fast, resistance
Buddhist nun's adjustable range is wide, and regulation is accurate, can be used in based in the lower aircraft manufacturing technology mechanism of damping regulation.
The utility model can act also as the core work part in the cylinder shearing performance test platform of magnetic flow liquid, be used for
Ultrasound and magnetic flow liquid cylinder type shearing performance test and study mechanism under magnetic coupling, as shown in Figure 4.When it is implemented,
First magnetorheological fluid materials are injected in shearing chamber, then adjust the voltage of application or current signal adjusts ultrasonic field and magnetic respectively
The intensity of field, the data of Motor torque and rotating speed are recorded, according to the Bingham model constitutive equations of magnetic flow liquid：
τ=τy+η·γ
τ is the shear stress of magnetic flow liquid；τyIt is the yield strength of magnetic flow liquid for the yield stress of magnetic flow liquid, by
The performance of magnetic flow liquid and the magnetic field intensity being added on magnetic flow liquid determine；η is the viscosity that magnetic force becomes liquid, and γ is magnetic flow liquid
Shear strain rate.Shear stress and shearing variability can be characterized and obtained by moment of torsion and rotating speed respectively, and yield stress is deposited with magnetic field intensity
In relation.Accordingly, same shearing variability is kept（Ensure that rotating speed is constant）, can contrast and turn under different ultrasound modalities and intensity
The change of square, influence of the ultrasonic field to magnetic flow liquid can be reflected indirectly.Electromagnetic machine that this platform is used, torque sensing
Device, hollow type photoelectric encoder are laboratory equipments, are readily available, therefore cost is low, are realized of the present utility model dual-purpose
Change.
The beneficial effects of the utility model：
The utility model damper structure simple and compact, action response is fast, and damp adjustable range is wide and accurate, can be used in base
Adjusted in damping in lower aircraft manufacturing technology mechanism, be alternatively arranged as test component be used for ultrasound with it is magnetorheological under magnetic coupling
Liquid cylinder type shearing performance test and study mechanism.
Brief description of the drawings
Fig. 1 is damper assembling structure schematic diagram of the present utility model.
Fig. 2 is stator module FEM model figure of the present utility model.
Fig. 3 is stator module modal graph of the present utility model.
Fig. 4 is application structure schematic diagram of the utility model in magnetic flow liquid cylinder type shearing test；26 be electricity in figure
Machine, 27 be torque sensor, and 28 be encoder, and 29 be damper, and 30 be magnetic flow liquid adding mouth.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
As Figure 1-3.
A kind of rotary-type drum type brake magnetic rheological liquid damper of ultrasonic field and magnetic coupling effect, it is near that it includes a ultrasound
Field generating assembly（Its FEM model such as Fig. 2）With an excitation component, as shown in figure 1, eight piezoelectric ceramic pieces 20 uniformly paste
Cylindrical in drum type brake stator 8, energization motivates stator B (0,4) mode of oscillations and applies ultrasonic field to magnetic flow liquid in shearing chamber 7,
Stator module mode of oscillation such as Fig. 3.The clip position of stator 8 is distributed on vibration node line position to reduce the interference to mode of oscillation.
To meet seal request, piezoelectric ceramic piece 20 and its wire should apply silica gel sealing and the end of stator 8 is close using O-ring seal 5,19
Envelope, it is this stator 8 to be constrained similar to compliant mechanism small, it can also reduce the interference to mode of oscillation.Between stator 8 and flux sleeve 18
Unilateral 2mm gaps are left, are consequently formed the magnetic flow liquid shearing chamber 7 of drum type brake.Magnetic flow liquid applies controling power to flux sleeve 18
Square, flux sleeve 18 are placed in rotating shaft 1, and both are mechanically rigidly connected using splicing or available screw thread etc., carry out rotating shaft output
From the control moment of magnetic flow liquid.At shearing chamber 7 both ends dynamic sealing is carried out using 4,10 pairs of magnetic flow liquids of lip-type packing.Due to
The presence of leakage field, the magnetic flow liquid viscosity in gap is larger, itself also plays a certain degree of sealing function.Returned in electromagnetism
Lu Zhong, stator 8 and each conducting parts are made using strong permeability magnetic material electrical pure iron, and flux sleeve 18 is equipped with rotating shaft 1 to increase
The magnetic conductivity on strong rotating shaft surface.Magnet exciting coil 16 and its polyamide skeleton 15 are assemblied on magnetic conduction bearing cup 13, and magnetic conduction bearing cup
13 are fastened by screw with ring flange 11 and are alignd with flux sleeve 18.This make it that magnetic induction line 17 is perforated through shearing caused by coil 16
Chamber 7 simultaneously closes back by stator 8, flux sleeve 18, magnetic conduction bearing cup 13, ring flange 11, magnetic conduction shell 9 and the formation of magnetic conductive cover 6 successively
Road.Protected in addition to leaving necessary solder joint height, gyration aperture and stator piezoelectric ceramics lead space in whole electromagnetic circuit
Card is close to be connected to reduce magnetic resistance and magnetic leakage.Ring flange 11, for convenience of being connected with external system, is designed with footpath by steel on ring flange
Boss 14 to positioning and the hole 12 for coil lead.Among magnet exciting coil 16 can be embedded in magnetic conduction shell 9 with multipair form, this
Both the inner space of magnetic conduction shell 9 had been taken full advantage of, has reduced the use of the material of magnetic conduction shell 9, the area of dissipation of coil 16 can be increased again.Resistance
The end cap 3 on Buddhist nun's device head is made by brass, and internal spring bearing 25, exterior design has magnetic flow liquid added holes 24, and and magnetic current
Become liquid shearing chamber 7 to align.When it is implemented, after injecting magnetic flow liquid into added holes 24 using syringe, with the He of screw 23
Sealing gasket seals added holes 24.Certainly the space inside rotating shaft 1 can be also made full use of, to store unnecessary magnetic flow liquid, is increased
Add its area of dissipation.The circumferential lead that certain space 21 is used for piezoelectric ceramics is left in the inner side of magnetic conductive cover 6, and wire is finally through on end cap
Fairlead 22 is drawn.
Damper magnetic flow liquid is operated under drum type brake shear mode, applies intensity controlled ultrasonic field and magnetic to magnetic flow liquid
, controllable and reliable damping brake power can be produced to the rotating shaft 1 moved by outside input.Magnet exciting coil electric signal is cut off, is made
Under the magnetic field mode of operation of magnetic flow liquid zero, the electric signal for now connecting piezoelectric ceramics applies ultrasonic field to magnetic flow liquid, and this can subtract
The influence of small magnetic flow liquid null field damping countershaft；Magnet exciting coil electric signal is connected, magnetic flow liquid is operated in non-zero magnetic field mould
Under formula, control piezoelectric ceramics can produce varying strength ultrasonic field and magnetic field with accurate with the different size of pumping signal of magnet exciting coil
Regulate and control magnetorheological fluid damp, so as to which countershaft speed is accurately controlled.The utility model damper structure is simple, small volume,
Action response is fast, and damp adjustable range is wide, and regulation is accurate, can be used in based in the lower aircraft manufacturing technology mechanism of damping regulation；
The magnetic flow liquid cylinder type shearing performance test and study mechanism that separately can be also used for as test component under ultrasound and magnetic coupling,
Here it is not repeated here.
The utility model is not directed to partly same as the prior art or can realized using prior art.
Claims (5)
1. a kind of ultrasonic field and the rotary-type drum type brake magnetic rheological liquid damper of magnetic coupling effect, it is characterised in that it includes one
Ultrasonic near field generating assembly and set of excitation component are covered, if described ultrasonic near field generating assembly includes dry plate piezoelectric ceramic piece
（20）, piezoelectric ceramic piece（20）Uniformly it is affixed on drum type brake stator（8）Cylindrical, energization motivates stator B (0,4) mode of oscillation to cutting
Cut chamber（7）Middle magnetic flow liquid applies ultrasonic field；Stator（8）Clip position is distributed on vibration node line position to reduce to mode of oscillation
Interference；Stator（8）With flux sleeve（18）Between leave unilateral gap, be consequently formed the shearing chamber of the magnetic flow liquid of drum type brake（7）
Magnetic flow liquid is to flux sleeve（18）Apply control moment, flux sleeve（18）Installed in rotating shaft（1）On；Shear chamber（7）Pacify at both ends
Equipped with sealing ring with to magnetic flow liquid progress dynamic sealing；Described excitation component includes coil（16）And flux sleeve（18）, magnetic conduction
Set（18）Installed in rotating shaft（1）On to strengthen the magnetic conductivity on rotating shaft surface；Magnet exciting coil（16）And polyamide skeleton（15）It is assemblied in
Magnetic conduction bearing cup（13）On, and magnetic conduction bearing cup（13）With ring flange（11）Pass through screw fastening and and flux sleeve（18）Alignment,
So that coil（16）Caused magnetic induction line（17）It is perforated through shearing chamber（7）And pass through stator successively（8）, flux sleeve（18）、
Magnetic conduction bearing cup（13）, ring flange（11）, magnetic conduction shell（9）And magnetic conductive cover（6）Form closed-loop path；Ring flange（11）Provided with radially
The boss of positioning（14）And the hole for coil lead（12）；Coil（16）Embedded magnetic conduction shell（9）In；End cap（3）Inside branch
Support bearing（25）, outside is provided with magnetic flow liquid added holes（24）, magnetic flow liquid added holes（24）With shearing chamber（7）Align.
2. ultrasonic field according to claim 1 and the rotary-type drum type brake magnetic rheological liquid damper of magnetic coupling effect, its
It is characterized in described piezoelectric ceramic piece（20）And its wire scribbles silica gel, stator（8）Both ends are sealed using O-ring seal,
To reduce the interference to mode of oscillation.
3. ultrasonic field according to claim 1 and the rotary-type drum type brake magnetic rheological liquid damper of magnetic coupling effect, its
It is characterized in described stator（8）With flux sleeve（18）Between the unilateral gap left be 2mm.
4. ultrasonic field according to claim 1 and the rotary-type drum type brake magnetic rheological liquid damper of magnetic coupling effect, its
It is characterized in described flux sleeve（18）Using splicing or mechanically it is rigidly connected installed in rotating shaft（1）On, so as to which countershaft is defeated
Out from the control moment of magnetic flow liquid.
5. ultrasonic field according to claim 1 and the rotary-type drum type brake magnetic rheological liquid damper of magnetic coupling effect, its
It is characterized in described magnetic conductive cover（6）Leave the space of the circumferential lead for piezoelectric ceramic piece in inner side（21）, lead is finally through end
Cover fairlead（22）Draw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720845740.4U CN206972815U (en) | 2017-07-12 | 2017-07-12 | A kind of rotary-type drum type brake magnetic rheological liquid damper of ultrasonic field and magnetic coupling effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720845740.4U CN206972815U (en) | 2017-07-12 | 2017-07-12 | A kind of rotary-type drum type brake magnetic rheological liquid damper of ultrasonic field and magnetic coupling effect |
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| CN206972815U true CN206972815U (en) | 2018-02-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540963A (en) * | 2018-12-22 | 2019-03-29 | 浙江大学城市学院 | A kind of enhanced heat exchange experimental system based on tube wall excitation |
| CN109921683A (en) * | 2019-03-30 | 2019-06-21 | 麦莫斯成都科技有限公司 | A kind of high q-factor Piezoelectric Traveling Wave ultrasound micro-motor based on magnetic rheology elastic body arranged side by side |
| CN110778634A (en) * | 2019-12-02 | 2020-02-11 | 沈阳众磊道桥有限公司 | Corrosion-resistant high-flux double-liquid damper |
-
2017
- 2017-07-12 CN CN201720845740.4U patent/CN206972815U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540963A (en) * | 2018-12-22 | 2019-03-29 | 浙江大学城市学院 | A kind of enhanced heat exchange experimental system based on tube wall excitation |
| CN109540963B (en) * | 2018-12-22 | 2023-08-18 | 浙江大学城市学院 | Reinforced heat exchange experimental system based on pipe wall excitation |
| CN109921683A (en) * | 2019-03-30 | 2019-06-21 | 麦莫斯成都科技有限公司 | A kind of high q-factor Piezoelectric Traveling Wave ultrasound micro-motor based on magnetic rheology elastic body arranged side by side |
| CN110778634A (en) * | 2019-12-02 | 2020-02-11 | 沈阳众磊道桥有限公司 | Corrosion-resistant high-flux double-liquid damper |
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