CN207728788U - A kind of magnetic rheology elastic body actuator inhibited for oscillation of rotary machine rotor - Google Patents
A kind of magnetic rheology elastic body actuator inhibited for oscillation of rotary machine rotor Download PDFInfo
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- CN207728788U CN207728788U CN201721533883.8U CN201721533883U CN207728788U CN 207728788 U CN207728788 U CN 207728788U CN 201721533883 U CN201721533883 U CN 201721533883U CN 207728788 U CN207728788 U CN 207728788U
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Abstract
The utility model discloses a kind of magnetic rheology elastic body actuator inhibited for oscillation of rotary machine rotor, including vibration-transmitting plate, c-type magnetic conductive device, magnetic rheology elastic body and shell, wherein vibration-transmitting plate is coordinated by rolling bearing and rotary shaft, it is provided with coil in c-type magnetic conductive device, magnetic rheology elastic body, which is clamped, by one group of mutually matched inclined-plane for vibration-transmitting plate and c-type magnetic conductive device wherein forms vibration suppression unit, for inhibiting its vibration when rotary shaft rotates by adjusting the rigidity of vibration suppression unit and damping.Magnetic rheology elastic body is inclined at c-type magnetic conductive device and is formed by magnetic field and when rotating shaft vibration while being squeezed and shear action in the present embodiment, it is shearing compression mixed mode to make its operating mode, multiple vibration suppression units are uniformly arranged by stress simultaneously, the oscillation crosswise of comprehensive inhibition rotor；In addition, magnetic rheology elastic body integrates the advantages of magnetorheological materials and elastomer, overcomes the particle sedimentation of magnetorheological fluid, needs the shortcomings of sealing.
Description
Technical field
The utility model belongs to vibration control technology field, is related to damping device, more particularly to a kind of for rotating
The magnetic rheology elastic body actuator of mechanical rotor vibration suppression.
Background technology
In recent years, the rotating machineries such as compressor, steam turbine, gas turbine are sent out towards high rotating speed, high load capacity, high efficiency direction
Exhibition, the vibration problem brought therewith become a very prominent and stubborn problem.Rotary machine rotor is since there are quality point
Cloth is uneven or is acted on by external excitation, and the center line of rotor deviates centre of gyration line, especially when rotor high speed rotation,
Larger centrifugal force is easy tod produce in transverse direction makes shafting generate larger oscillation crosswise amplitude, and when serious vibration can cause support shaft
Hold the harm such as abrasion, turbine being utilized even fracture.For these reasons, how to reduce the vibration of rotor-support-foundation system, improve rotor
Service life ensures mechanical equipment safe and reliable operation as assistant officer's important link to be solved in the research of rotating machinery.
In the executing agency for inhibiting rotor oscillation, occur the damper of a kind of magnetorheological materials in recent years, this
The principle of class damper is all that can significant changes occur outside plus under the effect of variation magnetic field using the rigidity of material and damping, real
Existing rotor oscillation control, and the time of this variation is Millisecond, and when externally-applied magnetic field is removed, this variation again can be immediately
It disappears.Variable magnetic field is generated with the coil for being detained electric current is passed through, magnetic field is introduced into magnetorheological materials working region with magnetizer,
Magnetorheological materials will generate magnetic effect, and rigidity and damping change, and the degree of variation is related with the magnetic field intensity of application, and
Magnetic field intensity is related with the size of current for being passed through coil, changes size of current and is the rigidity that the actuator can be changed, damps, in turn
Have the function that inhibit vibration.
Technology is more mature at present, widely used damper includes magnetorheological fluid formula damper, this damper
Magnetorheological fluid formula used is distributed in magnetic-particle (hydroxy iron powder) and carrier fluid (silicone oil) composition in carrier fluid.Wang Jianxiao, Meng Guang
Et al. shear-type magnetorheological fluid damper of the utility model for rotor oscillation control【Referring to《Magnetic rheological liquid damper is used
In the experimental study of rotor oscillation control》, Central China University of Science and Technology's journal (natural science edition)；07 phase in 2001】, pure squash type magnetic
Magnetorheological elastomer damper (referring to《The test of Vibration of mode MR elastomer damper-rotor-support-foundation system》, aeronautics
Report；In the January, 2008 the 1st phase of volume 29) and pure shear cut type magnetic rheology elastic body damper (《Rotor oscillation is controlled with magnetorheological
Elastomer damper》, Patent No. 200620154712.X).Lu Kun et al. devises a kind of shearing rigidity adjustable half actively
Formula bump leveller, the result tested on 1: 4 marine shafting scale model, which further demonstrates, utilizes magnetic rheology elastic body
Design Propulsion Systems semi-active type bump leveller feasibility (《Propulsion Systems semi-active type bump leveller based on magnetic rheology elastic body
Research》, vibrate and impact, 2017.36 (15)).
But since its null field modulus is much higher than shear mode calculating modulus to magnetic rheology elastic body in a compressed mode, have
Scholar's experiment measures about 3.8 times of left-right relations, and two kinds of the opposite of operating mode calculating modulus become under same magnetic field intensity
Change amount difference is little, and magnetic rheology effect refers to the ratio for having modulus and null field calculating modulus off field, therefore in same magnetic field intensity
The lower opposite magnetic rheology effect higher using shear mode.Therefore main in the magneto-rheological vibration damping device elastomer of Earlier designs
Using shear mode, but under shear mode, coil generates magnetic field could arrive magnetorheological elasticity by a long path
Body position, and the ratio between the magnetic conductivity of core material and air permeability is 1, there are leakage magnetic fields, leak ratio
Increase with the growth in path；And shear mode is used merely, vibration isolator is after installation is by vibration insolation means, due to by vibration insolation means
Corresponding static strain can occur for gravity elastomeric material, since this strain presence can cause vibration insulation structure can working range
Reduce.And magnetic rheology elastic body closely place by iron core under compact model, therefore the leakage in magnetic field is smaller, magneto-rheological vibration damping device is still
With certain effectiveness in vibration suppression, while magnetorheological elastomer material storage modulus is to be adopted 3-5 times under shear mode under compact model
Can greatly reduce structure static strain with compact model, but merely using compact model compared with only with shear mode vibration isolator identical
Stiffness variable range under magnetic induction intensity is small.
Therefore, there is also following disadvantages for above-mentioned technology：
1. the magnetorheological fluid formula damper that generally uses is more than carrier fluid due to the density of magnetic-particle at present, thus in the presence of
Grain settles and influences vibration control effect, furthermore to prevent magnetorheological fluid loss from also needing to add sealing device, cost increases, and magnetic
Rheology liquid reveals also more difficult cleaning；
2. current magnetic rheology elastic body damper is using pure extruding and pure shear cut type, but simple use squeezes operating mode
Rotor oscillation control is poor with magnetic rheology elastic body formula damper shift frequency effect, and vibration suppressioning effect is bad；Rotor is used merely
The magnetic rheology elastic body damper deformation of vibration control shear mode is larger；
It is vibrated in single direction transverse 3. the magnetic rheology elastic body damper designed at present can only control merely rotor, it cannot
Comprehensive inhibition oscillation crosswise.
Therefore, for the above deficiency, the utility model is badly in need of providing a kind of magnetic inhibited for oscillation of rotary machine rotor
Magnetorheological elastomer actuator.
Utility model content
The purpose of this utility model is to provide a kind of magnetic rheology elastic body works inhibited for oscillation of rotary machine rotor
Dynamic device, with the malformation caused by rotor oscillation under solution in the prior art pure shear pattern, larger, pure compression pattern moves down
Yupin effect is poor, and can not comprehensive inhibition Lateral Vibration of Rotor the problem of.
The utility model provides following proposal：
A kind of magnetic rheology elastic body actuator inhibited for oscillation of rotary machine rotor, including：Vibration-transmitting plate, the biography are shaken
Piece includes sleeve connection portion, and the sleeve connection portion is connected by bearing and rotary shaft；In the outer of the sleeve connection portion
Multiple trapezoid boss are laid on wall；Multiple c-type magnetic conductive devices, the c-type magnetic conductive device include c-type framework and coil, institute
It states coil to be wrapped on the c-type framework, the c-type framework is equipped with outward one group of inclined-plane；The c-type magnetic conductive device is logical
The one group of inclined-plane cooperation for crossing one group of inclined-plane and the trapezoid boss is installed；Multiple magnetic rheology elastic bodies, multiple magnetorheological bullets
Property body be separately mounted in the mating surface of the c-type framework and the trapezoid boss；Shell, the shell are arranged in the c-type
On the outside of magnetic conductive device, for the vibration-transmitting plate, the c-type magnetic conductive device and the magnetic rheology elastic body is radially fixed.
The magnetic rheology elastic body actuator as described above inhibited for oscillation of rotary machine rotor, further preferably,
The quantity of the trapezoid boss is four, and four trapezoid boss are set in qually spaced on the vibration-transmitting plate outer wall.
The magnetic rheology elastic body actuator as described above inhibited for oscillation of rotary machine rotor, further preferably,
The c-type framework includes the crossbeam being wholely set and two components, and two components are connected to the crossbeam both ends, the line
Circle is wrapped on the crossbeam.
The magnetic rheology elastic body actuator as described above inhibited for oscillation of rotary machine rotor, further preferably,
Further include clamp spring, the clamp spring is set in the housing washer, for consolidating the vibration-transmitting plate and the rolling bearing
Connection, prevents the axial movement of the rolling bearing and the vibration-transmitting plate.
The magnetic rheology elastic body actuator as described above inhibited for oscillation of rotary machine rotor, further preferably,
Further include case lid, the case lid setting is connect in the shell both sides, and by bolt with the shell.
The magnetic rheology elastic body actuator as described above inhibited for oscillation of rotary machine rotor, further preferably,
It is additionally provided with multiple wire guides on the housing, multiple wire guides are corresponded to respectively in multiple c-type magnetic conductive devices
The position of the coil is arranged, for across conducting wire.
The magnetic rheology elastic body actuator as described above inhibited for oscillation of rotary machine rotor, further preferably,
The c-type framework is made of pure iron, and the vibration-transmitting plate and the shell select aluminium to be made.
The magnetic rheology elastic body actuator as described above inhibited for oscillation of rotary machine rotor, further preferably,
The sleeve connection portion and the trapezoid boss are integrated setting.
The magnetic rheology elastic body actuator as described above inhibited for oscillation of rotary machine rotor, further preferably,
Further include adjusting circuit, the adjusting circuit is connect with the conducting wire, for adjusting current strength in the conducting wire.
The magnetic rheology elastic body actuator as described above inhibited for oscillation of rotary machine rotor, further preferably,
Further include vibration detecting sensor and controller, the vibration detecting sensor is arranged in the rotary shaft for detecting in real time
Vibration amplitude, phase and frequency parameter, the controller connect with the vibration detecting sensor and the adjusting circuit, are used for
Vibration amplitude, phase and the concurrent cloth control signal of parameter are obtained to adjust the current strength for adjusting circuit.
The utility model has the following advantages that compared with prior art：
A kind of magnetic rheology elastic body actuator inhibited for oscillation of rotary machine rotor disclosed in the utility model, packet
Multiple vibration suppression units being made of vibration-transmitting plate, c-type magnetic conductive device and magnetic rheology elastic body are included, wherein magnetic rheology elastic body inclines
Tiltedly setting is formed by magnetic field in c-type magnetic conductive device and is sheared and squeezing action simultaneously when rotate shaft vibration, makes it
Operating mode is shearing-compression mixed mode, compared to shear mode can effectively reduce caused by rotor oscillation structure and become
The larger problem of shape can also change pure die pressing type and move down the poor problem of yupin effect, while multiple vibration suppression units are laid
It sets, the power that shaft oscillation crosswise generates, the oscillation crosswise of comprehensive inhibition rotor can be divided equally；In addition, magnetic rheology elastic body collection magnetic
The advantages of rheo-material and elastomer, overcomes the particle sedimentation of magnetorheological fluid, needs the shortcomings of sealing.
Description of the drawings
Fig. 1 is a kind of master of magnetic rheology elastic body actuator inhibited for oscillation of rotary machine rotor of the utility model
Sectional view；
Fig. 2 is a kind of side of magnetic rheology elastic body actuator inhibited for oscillation of rotary machine rotor of the utility model
Sectional view.
Reference sign：
1- components, 2- coils, 3- magnetic rheology elastic bodies, 4- sleeve connections portion, 5- rolling bearings, 6- rotary shafts, 7- clamp springs,
8- shells, 9- wire guides, 10- bolts, 11- case lids, 12- crossbeams, 13- trapezoid boss, 14- transition connecting plates.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
As shown in Figure 1, present embodiment discloses a kind of magnetic rheology elastic body works inhibited for oscillation of rotary machine rotor
Dynamic device, including vibration-transmitting plate, c-type magnetic conductive device, magnetic rheology elastic body 3 and shell 8.Wherein vibration-transmitting plate include sleeve connection portion 4 with
And multiple trapezoid boss 13 form, wherein sleeve connection portion 4 is tube-in-tube structure, and is rotated by rolling bearing 5 and controll plant
The cooperation installation of axis 6, sleeve connection portion 4 are connect with the outer layer of rolling bearing 5, form interference fit, rotary shaft 6 and rolling bearing 5
Internal layer connection；Multiple trapezoid boss are uniformly arranged in the periphery in sleeve connection portion, and the specification of each trapezoid boss is identical, and along set
The axis direction of cylinder is arranged from inside to outside.C-type magnetic conductive device includes c-type framework and coil, and c-type framework is the iron of C-shaped setting
Core, coil is wound on it, is used to form magnetic field, and wherein the inside of c-type framework is arranged in flaring, open from inside to outside one group it is oblique
Face.Magnetic rheology elastic body 3 is a kind of novel magnetic current with dispersion or the big density magnetic particle being predefined in low density matrix
Become material, be to intersperse among ferromagnetic particle in solid-state like or gelatinous high molecular polymer body to cure to be prepared,
Its basic component includes mainly polarized magnetic particle, elastomer/rubber matrix and additive, and outstanding feature is mechanics, electricity
Learning performance can be controlled by externally-applied magnetic field, have magnetorheological materials concurrently and elastomer response is fast, good reversibility, controllable ability be strong
Advantage, and the shortcomings of overcome poor magnetorheological fluid free settling, stability, leakproofness.Magnetic rheology elastic body 3 is tool in the present embodiment
There are certain thickness laminated structure, size to can refer to 13 inclined-plane size of trapezoid boss and prepare.When installation, multiple c-type magnetic conduction dresses
It sets and cooperation peace is corresponded by one group of inclined-plane of outward one group of inclined-plane on c-type framework and multiple trapezoid boss 13 respectively
Dress, magnetic rheology elastic body 3 are arranged on a mating, form compression fit, and composition is multiple to be filled including trapezoid boss 13, c-type magnetic conduction
It sets and the vibration suppression unit of two magnetic rheology elastic bodies 3.For radially fixed each vibration suppression unit, it is additionally provided with shell
Body 8, enclosure interior are coincide with the multiple vibration suppression cell configurations that installation is complete, by vibration-transmitting plate, c-type magnetic conductive device and magnetorheological
Elastomer is fastened on inside, to fix above-mentioned multiple vibration suppression unit radials.When rotor oscillation, vibration can pass through
Bearing-vibration-transmitting plate is transmitted on magnetic rheology elastic body 3, under the magnetic field caused by hot-wire coil 2 of the meeting of magnetic rheology elastic body 3 at this time
Extrusion shearing vibrated effect simultaneously, by change be passed through the size of electric current in hot-wire coil 2 change actuator rigidity,
Damping, and then have the function that inhibit rotor oscillation.
Using the magnetic rheology elastic body actuator inhibited for oscillation of rotary machine rotor in above-described embodiment, have such as
Lower advantageous effect：The operating mode of magnetic rheology elastic body 3 is that shearing-compression mixed mode can be effective relative to shear mode
Reduce the larger problem of the malformation caused by rotor oscillation, relative to pure die pressing type, can solve that shift frequency effect is poor to ask
Topic；Multiple vibration suppression units are uniformly arranged simultaneously, can divide equally the power that shaft oscillation crosswise generates, the cross of comprehensive inhibition rotor
To vibration；In addition, magnetic rheology elastic body 3 integrates the advantages of magnetorheological materials and elastomer, of magnetorheological fluid is overcome
Grain sedimentation needs the shortcomings of sealing.
As shown in Figure 1, a kind of magnetic rheology elastic body work inhibited for oscillation of rotary machine rotor disclosed in the present embodiment
In dynamic device, the quantity of trapezoid boss 13 is four, and four trapezoid boss 13 are set in qually spaced on the outer wall in sleeve connection portion 4.
From the above it is found that trapezoid boss 13, c-type magnetic conductive device and magnetic rheology elastic body 3 form a vibration suppression unit, four
Trapezoid boss 13 is uniformly arranged on sleeve connector outer wall, then four vibration suppression units are distributed on sleeve connector outer wall
It being distributed in inside shell 8 in diagonal line so that each damper unit can effectively share the external force of oscillation crosswise generation,
Inhibition oscillation crosswise that can be comprehensive.
As shown in Figure 1, a kind of magnetic rheology elastic body work inhibited for oscillation of rotary machine rotor disclosed in the present embodiment
In dynamic device, c-type framework includes the crossbeam 12 being wholely set and two components 1, and two components 1 are connected to 12 both ends of crossbeam,
Wherein entire c-type framework (i.e. iron core) is made of pure iron, that is, ferrous material, and coil 2 is wound on crossbeam, constitutes magnetic conductive loop, uses
In forming magnetic field in the case of energization；It is additionally provided with one group of outward inclined-plane in the inside of two components 1, it is horizontal by adjusting
The length of beam 12 or the structure of component 1 make one group of inclined-plane that can completely match with one group of inclined-plane of trapezoid boss in vibration-transmitting plate 13
It closes.
As shown in Figure 1, a kind of magnetic rheology elastic body work inhibited for oscillation of rotary machine rotor disclosed in the present embodiment
Further include clamp spring 7 in dynamic device, clamp spring 7 is set in 5 outer ring of rolling bearing, and vibration-transmitting plate and the cooperation of rolling bearing 5 is made more to fasten,
Vibration-transmitting plate can be effectively avoided to be moved axially with rolling bearing 5.
As shown in Figure 1, a kind of magnetic rheology elastic body work inhibited for oscillation of rotary machine rotor disclosed in the present embodiment
Further include case lid 11 in dynamic device, the case lid 11 corresponds to be mounted on actuator both sides respectively in the round setting of center opening, and
It is connected by bolt 10, wherein screw hole passes through shell, realizes multiple fixation.In the present embodiment, shell 8 is fixed on vibration suppression
The outside of unit processed only realizes the radially fixed of vibration suppression unit, but when rotary shaft 6 rotates, vibration suppression unit
Inside can be squeezed effect, and vibration-transmitting plate and c-type magnetic conductive device are easy to happen axial vibration.And start is fixed on by bolt 10
The case lid 11 of device both sides then realizes the axial restraint of vibration suppression unit by the fastening effect of bolt 10, is passed to prevent
Piece and the c-type magnetic conductive device of shaking are axially moved along rotary shaft 6, meanwhile, fixing bolt also extends through shell, further strengthens the tight of shell
Tenacity.
As shown in Figure 1, a kind of magnetic rheology elastic body work inhibited for oscillation of rotary machine rotor disclosed in the present embodiment
In dynamic device, multiple wire guides 9 are additionally provided on shell 8, multiple wire guides 9 correspond to the coil in c-type magnetic conductive device 2 respectively
It installs, for across conducting wire.The setting of wire guide 9 is convenient for that the conducting wire inside actuator is exported to outside in time, and multiple
The setting of wire guide 9 then avoids in the present embodiment conducting wire in different vibration suppression units from mutually accumulating, cause circuit wind or
The problem of person's short circuit.
As shown in Figure 1, a kind of magnetic rheology elastic body work inhibited for oscillation of rotary machine rotor disclosed in the present embodiment
In dynamic device, in addition to the ingot iron needed for c-type magnetic conductive device, to reduce loss of field, other materials select it is easy to process and
It being made every the aluminium of magnetic, i.e., c-type framework (i.e. iron core) is made of pure iron, and vibration-transmitting plate, case lid 11 and shell 8 are made of aluminium, this
When, in entire actuator, the magnetic resistance of magnetic circuit is mainly the magnetic resistance of the very low magnetic rheology elastic body 3 of magnetic conductivity.
As shown in Figure 1, a kind of magnetic rheology elastic body work inhibited for oscillation of rotary machine rotor disclosed in the present embodiment
In dynamic device, vibration-transmitting plate further includes the multiple transition connecting plates 14 for being vertically provided at 4 outside of sleeve connection portion, multiple transition connecting plates
14 be in regular array, and trapezoid boss 13 is connect by transition connecting plate 14 with sleeve connection portion 4, i.e. the side of transition connecting plate 14
Branch sleeve interconnecting piece 4, the other side connect the bottom of trapezoid boss 13.Compared to trapezoid boss 13, the body of transition connecting plate 14
Product and quality are smaller, and therefore, compared to being directly delivered in trapezoid boss 13, the setting of transition connecting plate 14 can highlight ladder
The vibrating effect of shape boss 13 coordinates same magnetic to the squeezing action bigger to magnetic rheology elastic body 3 in vibration suppression unit
Field intensity so that the damping of entire vibration suppression unit and stiffness variation bigger act on also more the active suppression of rotor oscillation
By force.
As shown in Figure 1, a kind of magnetic rheology elastic body work inhibited for oscillation of rotary machine rotor disclosed in the present embodiment
In dynamic device, sleeve connection portion 4, transition connecting plate 14 and trapezoid boss 13 are integrated setting.Trapezoid boss 13 is coordinated by inclined-plane
It is connect with magnetic rheology elastic body 3 and c-type magnetic conductive device, to realize the maximization utilized, then inclined-plane is fully mated, i.e. c-type magnetic conduction
Device is identical with the height of trapezoid boss 13, and the fixation for integrating shell 8 is considered, then also identical as the height in sleeve connection portion 4, i.e.,
Sleeve connection portion 4, transition connecting plate 14 are identical with the height of trapezoid boss 13；In addition, above structure has using identical material
It is made, then may be configured as being wholely set.
As shown in Figure 1, a kind of magnetic rheology elastic body inhibited for oscillation of rotary machine rotor disclosed in the present embodiment
In actuator, for vibration-transmitting plate there is also another distressed structure, i.e., the sleeve connection portion 4 of vibration-transmitting plate can be not as one, can be with
It is made similar to the same four of tilting-pad bearing, excessive connecting plate and trapezoid boss is set on single chip architecture, correspond to four respectively
A vibration suppression unit.
As shown in Figure 1, a kind of magnetic rheology elastic body work inhibited for oscillation of rotary machine rotor disclosed in the present embodiment
Further include adjusting circuit in dynamic device, adjusts circuit and connect with conducting wire, for adjusting current strength in conducting wire；In addition, further including control
Device processed and the vibration detecting sensor in rotary shaft 6, controller are electric with vibration detecting sensor and adjustment circuit respectively
Connection.It adjusts circuit, controller and vibration detecting sensor and constitutes a close loop control circuit, vibration detecting sensor detects
The real-time vibration amplitude of rotary shaft 6, phase and frequency parameter and be transmitted in controller, calculated by the control of controller,
Output control signal changes and adjusts the size of electric current in circuit and realize the adjusting of the rigidity and damping change of actuator in real time,
And then realize the active suppression that rotary shaft 6 is vibrated.
In the present embodiment, the present embodiment uses magnetic excitation coil mode.Its mentality of designing is as follows：(1) according to magnetorheological bullet
The saturation induction density of elastomer material determines the saturation operating point of magnetic circuit at elastomer；(2) according to magnetic flux in series circuit
Consistent principle, determines the magnetic induction intensity of various pieces in magnetic circuit, and avoids in structure other parts prior to magnetorheological elasticity
Body reaches saturation state；(3) various pieces magnetic resistance in magnetic circuit is calculated, the magnetomotive force in magnetic circuit is obtained further according to Kirchhoff's law；
(4) consider the requirements such as available size of current, installation space, heat dissipation, select suitable field coil current and coil turn.
Compared with prior art, disclosed in the utility model a kind of for the magnetorheological of oscillation of rotary machine rotor inhibition
Elastomer actuator has the advantages that：
1, in the utility model, magnetic rheology elastic body 3 is mounted on the inclined-plane cooperation of trapezoid boss 13 and c-type magnetic conductive device
Place, it is shearing-compression mixed mode to make its operating mode, can effectively reduce compared to shear mode and be tied caused by rotor oscillation
Structure deforms larger problem, can also change pure die pressing type and move down the poor problem of yupin effect, while multiple vibration suppression units are equal
Cloth is arranged, and can divide equally the power that shaft oscillation crosswise generates, the oscillation crosswise of comprehensive inhibition rotor；In addition, magnetic rheology elastic body 3
It the advantages of integrating magnetorheological materials and elastomer overcomes the particle sedimentation of magnetorheological fluid, need the shortcomings of sealing；
2, in the utility model, four vibrations being made of trapezoid boss 13, c-type magnetic conductive device and magnetic rheology elastic body 3
Inhibit unit symmetrical two-by-two, the power that shaft oscillation crosswise generates, the oscillation crosswise of comprehensive inhibition rotor can be divided equally；
3, in the utility model, by the setting of case lid, the axial restraint of vibration suppression unit is realized, to prevent
Vibration-transmitting plate and the axial movement of c-type magnetic conductive device, meanwhile, the fixing bolt of case lid also extends through shell, and the fastening for strengthening shell is strong
Degree；
4, in the utility model, magnetic Circuit Design thinking, compound material, electric current, coil, installation space and heat dissipation are also disclosed
Deng requirement, suitable field coil current and coil turn are obtained.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of magnetic rheology elastic body actuator inhibited for oscillation of rotary machine rotor, which is characterized in that including：
Vibration-transmitting plate, the vibration-transmitting plate include sleeve connection portion, and the sleeve connection portion is connected by bearing and rotary shaft；
It is laid with multiple trapezoid boss on the outer wall in the sleeve connection portion；
Multiple c-type magnetic conductive devices, the c-type magnetic conductive device include c-type framework and coil, and the coil is wrapped in the c-type structure
On frame, the c-type framework is equipped with outward one group of inclined-plane；The c-type magnetic conductive device by one group of inclined-plane with it is described trapezoidal
One group of inclined-plane cooperation installation of boss；
Multiple magnetic rheology elastic bodies, multiple magnetic rheology elastic bodies are separately mounted to the c-type framework and the trapezoid boss
Mating surface on；
Shell, the shell are arranged on the outside of the c-type magnetic conductive device, for by the vibration-transmitting plate, the c-type magnetic conductive device and
The magnetic rheology elastic body is radially fixed.
2. the magnetic rheology elastic body actuator according to claim 1 inhibited for oscillation of rotary machine rotor, feature
It is, the quantity of the trapezoid boss is four, and four trapezoid boss are set in qually spaced on the vibration-transmitting plate outer wall.
3. the magnetic rheology elastic body actuator according to claim 1 or 2 inhibited for oscillation of rotary machine rotor, special
Sign is that the c-type framework includes the crossbeam being wholely set and two components, and two components are connected to the two of the crossbeam
End, the coil are wrapped on the crossbeam.
4. the magnetic rheology elastic body actuator according to claim 1 or 2 inhibited for oscillation of rotary machine rotor, special
Sign is, further includes clamp spring, and the clamp spring is set in the bearing outer ring, the company for consolidating the vibration-transmitting plate and the bearing
It connects, prevents the axial movement of the bearing and the vibration-transmitting plate.
5. the magnetic rheology elastic body actuator according to claim 1 or 2 inhibited for oscillation of rotary machine rotor, special
Sign is, further includes case lid, and the case lid setting is connect in the shell both sides, and by bolt with the shell.
6. the magnetic rheology elastic body actuator according to claim 1 or 2 inhibited for oscillation of rotary machine rotor, special
Sign is, is additionally provided with multiple wire guides on the housing, and multiple wire guides correspond to multiple c-type magnetic conduction dresses respectively
The position for the coil set is arranged, for across conducting wire.
7. the magnetic rheology elastic body actuator according to claim 1 or 2 inhibited for oscillation of rotary machine rotor, special
Sign is that the c-type framework is made of pure iron, and the vibration-transmitting plate and the shell select aluminium to be made.
8. the magnetic rheology elastic body actuator according to claim 1 or 2 inhibited for oscillation of rotary machine rotor, special
Sign is that the sleeve connection portion and the trapezoid boss are integrated setting.
9. the magnetic rheology elastic body actuator according to claim 6 inhibited for oscillation of rotary machine rotor, feature
It is, further includes adjusting circuit, the adjusting circuit is connect with the conducting wire, for adjusting current strength in the conducting wire.
10. the magnetic rheology elastic body actuator according to claim 9 inhibited for oscillation of rotary machine rotor, feature
It is, further includes vibration detecting sensor and controller, the vibration detecting sensor is arranged in the rotary shaft for examining
Real-time vibration amplitude, phase and frequency parameter are surveyed, the controller connects with the vibration detecting sensor and the adjusting circuit
It connects, for obtaining vibration amplitude, phase and the concurrent cloth control signal of frequency parameter to adjust the current strength for adjusting circuit.
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| CN201721533883.8U CN207728788U (en) | 2017-11-16 | 2017-11-16 | A kind of magnetic rheology elastic body actuator inhibited for oscillation of rotary machine rotor |
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| CN201721533883.8U CN207728788U (en) | 2017-11-16 | 2017-11-16 | A kind of magnetic rheology elastic body actuator inhibited for oscillation of rotary machine rotor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763131A (en) * | 2017-11-16 | 2018-03-06 | 北京化工大学 | A kind of magnetic rheology elastic body actuator suppressed for oscillation of rotary machine rotor |
| CN109027124A (en) * | 2018-09-12 | 2018-12-18 | 西安交通大学 | A kind of adjustable torsion quasi-zero stiffness vibration isolators of negative stiffness and control method |
| CN111765196A (en) * | 2020-06-15 | 2020-10-13 | 上海航天控制技术研究所 | Microminiature anisotropic shock absorber structure |
-
2017
- 2017-11-16 CN CN201721533883.8U patent/CN207728788U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763131A (en) * | 2017-11-16 | 2018-03-06 | 北京化工大学 | A kind of magnetic rheology elastic body actuator suppressed for oscillation of rotary machine rotor |
| CN107763131B (en) * | 2017-11-16 | 2024-03-22 | 北京化工大学 | Magnetorheological elastomer actuator for suppressing vibration of rotary machine rotor |
| CN109027124A (en) * | 2018-09-12 | 2018-12-18 | 西安交通大学 | A kind of adjustable torsion quasi-zero stiffness vibration isolators of negative stiffness and control method |
| CN109027124B (en) * | 2018-09-12 | 2020-02-11 | 西安交通大学 | Torsion quasi-zero stiffness vibration isolator with adjustable negative stiffness and control method |
| CN111765196A (en) * | 2020-06-15 | 2020-10-13 | 上海航天控制技术研究所 | Microminiature anisotropic shock absorber structure |
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