CN109973579A - MR elastomer vibration isolator - Google Patents
MR elastomer vibration isolator Download PDFInfo
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- CN109973579A CN109973579A CN201910324462.1A CN201910324462A CN109973579A CN 109973579 A CN109973579 A CN 109973579A CN 201910324462 A CN201910324462 A CN 201910324462A CN 109973579 A CN109973579 A CN 109973579A
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- conductive contact
- accommodating cavity
- elastomer
- vibration isolator
- exciting coil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of MR elastomer vibration isolator, including elastomer foot, magnet exciting coil, the magnetic rheology elastic body assembly being set on elastomer foot and regulating current device for adjusting the size of current in the magnet exciting coil.MR elastomer vibration isolator of the invention is used to adjust the size of current in magnet exciting coil, realizes the regulation and control of the elasticity modulus of magnetic rheology elastic body assembly, improves vibration isolating effect by setting regulating current device.
Description
Technical field
The invention belongs to vibration isolator technical fields, specifically, the present invention relates to a kind of MR elastomer vibration isolators.
Background technique
Magnetic rheology elastic body is that the ferromagnetic particle of micro-meter scale is incorporated into high molecular polymer, under magnetic field environment
Solidification, so that the intracorporal particle of base has chain or column structure.The elasticity modulus of this material can become with applied field strengths
Change, therefore is expected to be widely used in terms of variation rigidity.Compared with common magnetorheological fluid, magnetic rheology elastic body is not
But there is controllability, invertibity, respond contour technical characteristic rapidly, it is unique also to have the advantages that stability waits well.Magnetorheological bullet
Property body can be applied to the vibration and noise reducing of the delivery vehicles such as automobile, train, naval vessel.
And constantly improve with the rapid development of auto industry and road traffic facility, automobile has been increasingly becoming people's
Walking-replacing tool, people also propose higher want to the comfort level of running car while enjoyment automobile brings convenience, is convenient
It asks.As the light-weighted direction of the design of automobile is developed, this with regard to many worsening degrees, have ignored the vibration characteristics of automobile, seriously
Influence the riding comfort of automobile.A large amount of research and experiment show that the vibration of automobile is to influence running car flatness and behaviour
One of an important factor for making stability and automobile fatigue life, vibrated conference make passenger be easy to fatigue and have discomfort.
It is serious to vibrate the travel speed that also will affect automobile, and generate noise pollution.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention provides a kind of magnetic
Magnetorheological elastomer vibration isolator, it is therefore an objective to improve vibration isolating effect.
To achieve the goals above, the technical scheme adopted by the invention is as follows: MR elastomer vibration isolator, including elastomer
Pedestal, magnet exciting coil, the magnetic rheology elastic body assembly being set on elastomer foot and for adjusting in the magnet exciting coil
The regulating current device of size of current.
The regulating current device includes adjustment seat, the regulating piston being movably set in adjustment seat and lives with adjusting
There is the first accommodating cavity and the second accommodating cavity, regulating piston to be located at for piston rod plug connection and connect with shaking platform, adjustment seat
In first accommodating cavity and regulating piston is for pushing the conduction liquid in the first accommodating cavity to flow in the second accommodating cavity.
The adjustment seat is equipped with the first conductive contact and the second conductive contact, and the regulating current device further includes for institute
State magnet exciting coil power supply coil power supply circuit, coil power supply circuit include the first power supply and with the first conductive contact and second
Conductive contact is the first resistor of electrical connection, and magnet exciting coil is connected by first resistor with the first power supply.
First conductive contact and the second conductive contact are located at the inside of second accommodating cavity, the first conductive contact and
Second conductive contact is positioned opposite and in sustained height, the first conductive contact and the second conductive contact by being located at the second accommodating
Conduction liquid conducting in chamber.
The adjustment seat is equipped with third conductive contact and the 4th conductive contact, and the coil power supply circuit includes and third
Conductive contact and the 4th conductive contact are the second resistance of electrical connection, and magnet exciting coil is connected by second resistance with the first power supply.
The third conductive contact and the 4th conductive contact are located at the inside of second accommodating cavity, third conductive contact and
4th conductive contact is positioned opposite and is in sustained height, and third conductive contact is located at the top of first conductive contact,
4th conductive contact is located at the top of second conductive contact, third conductive contact and the 4th conductive contact and is held by being located at second
Set the conduction liquid conducting in chamber.
The magnet exciting coil setting is multiple, and each magnet exciting coil is connect with a regulating current device respectively.
The MR elastomer vibration isolator further includes being set to magnetic shield pipe inside the elastomer foot, removable
It is dynamic to be set in magnetic shield pipe and extended permanent magnet to outside magnetic shield pipe and for controlling permanent magnet in stretching state
The position control switched between receiving state, the magnet exciting coil are sheathed on magnetic shield pipe.
The position control includes for providing the driver of rotary force, rotatable setting and being with the permanent magnet
The drive rod of threaded connection and the transmission mechanism being connect with driver and drive rod.
The transmission mechanism is gear drive, and transmission mechanism includes the driving gear connecting with the driver and sets
The driven gear for being placed on the drive rod and being meshed with principal and subordinate's gear, driver are motor.
MR elastomer vibration isolator of the invention is used to adjust the electricity in magnet exciting coil by setting regulating current device
Size is flowed, realizes the regulation and control of the elasticity modulus of magnetic rheology elastic body assembly, improves vibration isolating effect.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively:
Fig. 1 is the structural schematic diagram of MR elastomer vibration isolator of the present invention；
Fig. 2 is the internal structure signal of MR elastomer vibration isolator of the present invention；
Fig. 3 is the structural schematic diagram of elastomer foot；
Fig. 4 is the arragement construction schematic diagram of regulating current device；
Fig. 5 is the arragement construction schematic diagram of position control；
Fig. 6 is the cross-sectional view of regulating current device；
Fig. 7 is the structural schematic diagram of position control；
In the figure, it is marked as 1, shaking platform；2, first resistor；3, second resistance；4, adjustment seat；401, the first accommodating cavity；
402, the second accommodating cavity；403, third accommodating cavity；5, elastomer foot；6, conducting wire；7, outer housing；8, lower bottom base；9, piston rod；
10, magnetic shield pipe；11, every Ci Gai；12, connecting rod；13, regulating piston；14, permanent magnet；15, magnetic rheology elastic body assembly；16,
Magnet exciting coil；17, driving gear；18, driven gear；19, driver；20, drive rod；21, the first conductive sheet；22, it second leads
Electric piece；23, conductive column；24, electromagnet；25, second source.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to a specific embodiment of the invention further details of
Explanation, it is therefore an objective to those skilled in the art be helped to have more complete, accurate and deep reason to design of the invention, technical solution
Solution, and facilitate its implementation.
As shown in Figures 1 to 7, the present invention provides a kind of MR elastomer vibration isolators, including for receiving vibrational energy
The shaking platform 1 of amount, lower bottom base 8, the outer housing 7 being set on lower bottom base 8, the elastomer foot being set to inside outer housing 7
5, magnet exciting coil 16, the magnetic rheology elastic body assembly 15 that is set on elastomer foot 5 and for adjusting in magnet exciting coil 16
The regulating current device of size of current.
Specifically, as shown in Figures 1 to 4, outer housing 7 is the structure of inner hollow, lower bottom base 8 is located at outer housing 7
Lower section and lower bottom base 8 is fixedly connected with the bottom of outer housing 7, elastomer foot 5 is fixed at the inside of outer housing 7, elasticity
Body pedestal 5 is also the structure of inner hollow, and magnet exciting coil 16 is arranged in the inner chamber body of elastomer foot 5, magnetic rheology elastic body
Assembly 15 also is located in the inner chamber body of elastomer foot 5 and the upper end of elastomer foot 5 is arranged in magnetic rheology elastic body assembly 15,
Elastomer foot 5 provides a supporting role magnetic rheology elastic body assembly 15, and shaking platform 1 is located at magnetic rheology elastic body assembly 15
Top and shaking platform 1 are located at the lower section of vibrating body, and shaking platform 1 is used to receive the vibrational energy applied by vibrating body, vibration
Platform 1 is connect by connecting rod 12 with magnetic rheology elastic body assembly 15.Magnetic rheology elastic body assembly 15 is used to play the role of vibration isolation,
Magnet exciting coil 16 generates magnetic field after being powered, the magnetic fields that magnet exciting coil 16 generates pass through in magnetic rheology elastic body assembly 15
Regulating current device is set for adjusting the size of current in magnet exciting coil 16, so that passing through the magnetic of magnetic rheology elastic body assembly 15
Flux is adjusted, and then realizes the regulation and control of the elasticity modulus of magnetic rheology elastic body assembly 15, changes magnetorheological elasticity
The rigidity size of body assembly 15, and then realize that vibration isolator to the semi- active control for vibrating transmitting between vibrating body and lower bottom base 8, mentions
High vibration isolating effect.
As shown in Figures 1 to 6, regulating current device includes adjustment seat 4, the moveable adjusting being set in adjustment seat 4
Piston 13 and the piston rod 9 for connecting with regulating piston 13 and being connect with shaking platform 1, adjustment seat 4 have the first accommodating cavity 401,
Second accommodating cavity 402 and third accommodating cavity 403, regulating piston 13 is located in the first accommodating cavity 401 and regulating piston 13 is for pushing away
Conduction liquid in dynamic first accommodating cavity 401 flows in the second accommodating cavity 402.The upper end closed of outer housing 7, shaking platform 1
In the top of outer housing 7, connecting rod 12 is vertically arranged, and connecting rod 12 is passed down through after outer housing 7 and is located inside outer housing 7
Magnetic rheology elastic body assembly 15 be fixedly connected, adjustment seat 4 is vertically arranged on the top surface of outer housing 7, the lower end of adjustment seat 4 with
Outer housing 7 is fixedly connected.Adjustment seat 4 is that the inner chamber body of the structure of inner hollow and adjustment seat 4 is U-shaped, and piston rod 9 is to set vertically
Set, the upper end of piston rod 9 is fixedly connected with shaking platform 1, the lower end of piston rod 9 be inserted into the first accommodating cavity 401 and be located at
Regulating piston 13 in first accommodating cavity 401 is fixedly connected.The inner chamber body of adjustment seat 4 is accommodated by the first accommodating cavity 401, second
Chamber 402 and third accommodating cavity 403 form, the circular cavity that the first accommodating cavity 401 and the second accommodating cavity 402 are vertically arranged,
Third accommodating cavity 403 is located at the lower section of the first accommodating cavity 401 and the second accommodating cavity 402 and third accommodating cavity 403 and first accommodates
Chamber 401 is connected to the second accommodating cavity 402, and third accommodating cavity 403 makes the first accommodating cavity 401 and the second accommodating cavity 402 be in company
Logical state, regulating piston 13 are the diameter phase of circular block shape structure and the diameter of regulating piston 13 and the first accommodating cavity 401
Together, regulating piston 13 is for pushing the conduction liquid inside adjustment seat 4 to be flowed.When shaking platform 1 by vibrating body push and to
When lower movement, shaking platform 1 pushes regulating piston 13 to move down in the first accommodating cavity 401 by piston rod 9, regulating piston
13 push down on the conduction liquid in the first accommodating cavity 401, and the conduction liquid in the first accommodating cavity 401 is flowed through third accommodating cavity 403
Into the second accommodating cavity 402, so that the liquid level of the conduction liquid in the second accommodating cavity 402 is changed, the second accommodating cavity 402
In conduction liquid liquid level increase.
As shown in Figures 1 to 6, adjustment seat 4 is equipped with the first conductive contact and the second conductive contact, and regulating current device is also
Including the coil power supply circuit powered for magnet exciting coil 16, coil power supply circuit include the first power supply and with the first conductive contact
It is the first resistor 2 of electrical connection with the second conductive contact, for the first power supply for powering, the first power supply is battery, magnet exciting coil
16 one end is connected by first resistor 2 with the first power supply, and 16 other end of magnet exciting coil passes through conducting wire and the first power electric connection,
First conductive contact and the second conductive contact are located at the inside of the second accommodating cavity 402, the first conductive contact and the second conductive contact
For it is positioned opposite and in sustained height, the first conductive contact and the second conductive contact by be located at the second accommodating cavity 402 in leading
Electro-hydraulic conducting.
As shown in Figures 1 to 6, adjustment seat 4 is equipped with the 5th conductive contact and the 6th conductive contact, the 5th conductive contact position
In the lower section of the first conductive contact, the 6th conductive contact is located at the lower section of the second conductive contact, and the 5th conductive contact and the 6th is led
Electric contact is located at the inside of the second accommodating cavity 402, and the 5th conductive contact and the 6th conductive contact are positioned opposite and in same
Highly, the 5th conductive contact be electrically connected by a conducting wire with magnet exciting coil 16, the 6th conductive contact pass through another conducting wire and
First power electric connection, the 5th conductive contact and the 6th conductive contact are connected by the conduction liquid being located in the second accommodating cavity 402, are led
It is electro-hydraulic to be located between the 5th conductive contact and the 6th conductive contact.The liquid level of conduction liquid in second accommodating cavity 402 is adjustable,
When the conduction liquid liquid level in the second accommodating cavity 402 is in sustained height with the 5th conductive contact and the 6th conductive contact, the 5th
Conductive contact and the 6th conductive contact are connected by conduction liquid, and coil power supply circuit is formed into a loop at this time, and magnet exciting coil 16 can lead to
Electricity generates magnetic field；When the Oscillation Amplitude of vibrating body is bigger, the conduction liquid liquid level in the second accommodating cavity 402 be will increase, when
Conduction liquid liquid level in second accommodating cavity 402 rises to when being in sustained height with the first conductive contact and the second conductive contact,
First conductive contact and the second conductive contact are connected by conduction liquid, at this time first resistor 2 in parallel in coil power supply circuit, so that line
The all-in resistance of circle power supply circuit becomes smaller, and is increased by the electric current of magnet exciting coil 16, and magnet exciting coil 16 generates magnetic field-enhanced, thus
So that the stiffness change of magnetic rheology elastic body assembly 15 is bigger, so that it is more preferable to play the role of vibration damping.
As shown in Figures 1 to 6, adjustment seat 4 is equipped with third conductive contact and the 4th conductive contact, coil power supply circuit packet
Including with third conductive contact and the 4th conductive contact is the second resistance 3 being electrically connected, and magnet exciting coil 16 passes through second resistance 3 and the
The series connection of one power supply.Third conductive contact and the 4th conductive contact are located at the inside of the second accommodating cavity 402, third conductive contact and
Four conductive contacts are positioned opposite and are in sustained height, and third conductive contact is located at the top of the first conductive contact, and the 4th leads
Electric contact is located at the top of the second conductive contact, third conductive contact and the 4th conductive contact by being located in the second accommodating cavity 402
Conduction liquid conducting, between third conductive contact and the 5th conductive contact, the second conductive contact is located at the first conductive contact
Between 4th conductive contact and the 6th conductive contact.Conduction when the Oscillation Amplitude of vibrating body is bigger, in the second accommodating cavity 402
Liquid liquid level will increase, when the conduction liquid liquid level in the second accommodating cavity 402 rises to and third conductive contact and the 4th conduction
When contact is in sustained height, third conductive contact and the 4th conductive contact are connected by conduction liquid, and the first conductive contact and
Second conductive contact, the 5th conductive contact and the 6th conductive contact are connected by conduction liquid, in parallel in coil power supply circuit at this time
First resistor 2 and second resistance 3 pass through the electric current of magnet exciting coil 16 so that the all-in resistance of coil power supply circuit further becomes smaller
Increase, magnet exciting coil 16 generates magnetic field-enhanced, so that the stiffness change of magnetic rheology elastic body assembly 15 is bigger, so that rising
Effect to vibration damping is more preferable.
The inside that multiple and all magnet exciting coils 16 are distributed in elastomer foot 5, magnet exciting coil 16 is arranged in magnet exciting coil 16
Positioned at the lower section of magnetic rheology elastic body assembly 15, each magnet exciting coil 16 is connect with a regulating current device respectively, Ge Ge electricity
Flow modulation device is respectively used to adjust the size of current in a magnet exciting coil 16, and all regulating current devices are distributed in connecting rod
12 outside surrounding, can be further improved the vibration isolating effect of vibration isolator in this way, and make the stability of vibrating body more preferable.
As shown in Figures 1 to 6, in the present embodiment, magnet exciting coil 16 and regulating current device are respectively provided with four, four electricity
Flow modulation device is uniformly distributed circumferentially centered on connecting rod 12, and the upper end of connecting rod 12 is at the center of shaking platform 1
Place is fixedly connected with shaking platform 1, and the lower end of connecting rod 12 is at the center of magnetic rheology elastic body assembly 15 and magnetorheological bullet
Property body assembly 15 is fixedly connected, and shaking platform 1 is located at the top of four regulating current devices.
As shown in Fig. 1 to Fig. 5 and Fig. 7, MR elastomer vibration isolator of the invention further includes being set to elastomer foot 5
Internal magnetic shield pipe 10 is movably set in magnetic shield pipe 10 and the extended permanent magnet 14 to outside magnetic shield pipe 10
And the position control switched between stretching state and receiving state for controlling permanent magnet 14,16 sets of magnet exciting coil
On magnetic shield pipe 10.When vibration isolator internal wiring occur aging, damage the problems such as, cause magnet exciting coil 16 that can not power
When, the outside of magnetic shield pipe 10 is extend out to by position control control permanent magnet 14, the magnetic fields that permanent magnet 14 generates in
Magnetic rheology elastic body assembly 15 plays the role of a kind of interim supplement magnetic field, it is ensured that vibration isolator can still play a role, and wait
By after troubleshooting, magnet exciting coil 16 can work normally maintenance personal, and position control controls the storage of permanent magnet 14 again
To the inside of magnetic shield pipe 10.When permanent magnet 14 is in receiving state, permanent magnet 14 is fully located inside magnetic shield pipe 10, every
Magnetosheath pipe 10 plays separated magnetic effect.
As shown in Fig. 1 to Fig. 5 and Fig. 7, magnetic shield pipe 10 is fixed in the inside of elastomer foot 5, magnetic shield pipe
10 quantity is identical as the quantity of magnet exciting coil 16, and each magnet exciting coil 16 is respectively wound around on a magnetic shield pipe 10, every magnetic
Casing 10 is the cylindrical body of upper end opening and inner hollow, and permanent magnet 14 is also cylindrical body, and permanent magnet 14 is with magnetic shield pipe 10
Coaxial arrangement, magnetic shield pipe 10 is vertically arranged and the axis of magnetic shield pipe 10 is parallel with the length direction of connecting rod 12.Bullet
Property body pedestal 5 bottom closing, the lower end of magnetic shield pipe 10 is fixedly connected with the bottom of elastomer foot 5.Position control
Including for providing rotary force driver 19, rotatable setting and with permanent magnet 14 be the drive rod 20 being threadedly coupled and with
The transmission mechanism that driver 19 and drive rod 20 connect, drive rod 20 and permanent magnet 14 constitute worm drive, drive rod 20 with forever
Magnet 14 is coaxial arrangement, and drive rod 20 is vertically arranged, and the bottom of elastomer foot 5 has allow drive rod 20 to pass through to lead to
Hole, the outer surface of drive rod 20 are equipped with screw thread, internal thread hole are equipped at the center of permanent magnet 14, and driver 19 drives drive rod 20
When being rotated around its axis, drive rod 20 can drive guidance permanent magnet 14 to move in a straight line along axial direction, and then can control
Permanent magnet 14 switches between receiving state and stretching state.Elastomer foot 5, which is equipped with, plays guiding work to permanent magnet 14
Guide rod (not shown), permanent magnet 14 have the pilot hole for allowing guide rod to be inserted into, and guide rod is vertically arranged and leads
It is cylindrical body to bar, the axis of guide rod is parallel with the axis of permanent magnet 14, and guide rod is inserted into magnetic shield pipe 10, guide rod
Lower end be fixedly connected with elastomer foot 5, in the pilot hole of the upper end of guide rod insertion permanent magnet 14, guide rod is to permanent magnet
14 play the guiding role, it is ensured that permanent magnet 14 is only capable of moving in a straight line along axial direction.
As shown in Fig. 1 to Fig. 5 and Fig. 7, transmission mechanism is gear drive, and transmission mechanism includes connecting with driver 19
Driving gear 17 and the driven gear 18 that is set on drive rod 20 and is meshed with principal and subordinate's gear, driver 19 be motor
(the model TSC06401C2NL of the motor), driving gear 17 and driven gear 18 are roller gear, and driving gear 17 is solid
It is arranged on the motor shaft of driver 19 calmly, driven gear 18 is fixed on drive rod 20, and elastomer foot 5 is to drive rod
20 provide a supporting role, and driver 19 is fixed at the inside of lower bottom base 8, and driving gear 17 and driven gear 18 are located at shell
The inside of body 7 and the lower section for being located at elastomer foot 5.
As shown in Fig. 1 to Fig. 5 and Fig. 7, position control further includes power-off signal generation mechanism and supplies driver 19
The second source 25 of electricity, second source 25 is fixed at the inside of lower bottom base 8 and second source 25 and driver 19 are opposite
Arrangement, driver 19 are connected with second source 25, and second source is battery, which includes first conductive
Piece 21, the second conductive sheet 22, conductive column 23 and the electromagnet 24 for applying magnetic force to conductive column 23, electromagnet 24 are connected online
It encloses in power supply circuit, for electromagnet 24 by the first power supply power supply, the inside of outer housing 7, electromagnet 24 and position is arranged in the first power supply
In the lower section of driven gear 18, conductive column 23 is located at the lower section of electromagnet 24, and the bottom of outer housing 7, which has, accommodates conductive column 23
Mounting hole, the first conductive sheet 21 and the second conductive sheet 22 are located at the lower section of conductive column 23, the first conductive sheet 21 and the second conductive sheet
22 all have certain length and the first conductive sheet 21 and the second conductive sheet 22 are in sustained height, the first conductive sheet 21 and second
Conductive sheet 22 is on same straight line, has certain gap, conductive column 23 between the first conductive sheet 21 and the second conductive sheet 22
Positioned at the top in the gap, the first end of the first conductive sheet 21 is electrically connected with the anode of driver 19, and the cathode of driver 19 is logical
Conducting wire to be crossed to be electrically connected with the anode of second source 25, the first end of the second conductive sheet 22 is electrically connected with the cathode of second source 25,
The second end of first conductive sheet 21 is located at the lower section of conductive column 23 and the second end with conductive column 23 for being in contact, and second is conductive
The second end of piece 22 also is located at the lower section of conductive column 23 and the second end is also used for being in contact with conductive column 23, the first conductive sheet 21
First end and second end be the first conductive sheet 21 length direction on both ends, the first end and second end of the second conductive sheet 22
For the both ends on the length direction of the second conductive sheet 22, the second end of the second end of the first conductive sheet 21 and the second conductive sheet 22 is not
It directly contacts and there is gap between 21 second end of the first conductive sheet and the second end of the second conductive sheet 22.In coil power supply circuit
When normal condition, the first power supply can power for magnet exciting coil 16 and electromagnet 24, and electromagnet 24 can be to conductive column 23 at this time
Apply magnetic force, electromagnet 24 adsorbs conductive column 23, and the lower end of conductive column 23 is divided with the first conductive sheet 21 and the second conductive sheet 22
From so that the power supply circuit open circuit of driver 19, second source 25 cannot power to driver 19；And when coil power supply circuit is disconnected
Lu Hou, the first power supply cannot power for electromagnet 24, and conductive column 23 can fall to downwards under self gravitation effect and lead with first
At the position that electric piece 21 and the second conductive sheet 22 are in contact, the first conductive sheet 21 and the second conductive sheet 22 are led by conductive column 23
Logical, so that the power supply circuit of driver 19 is formed into a loop, second source 25 can power for driver 19, and driver 19 starts to transport
Turn, the rotary force that driver 19 generates is transferred to drive rod 20 by transmission mechanism, and drive rod 20 rotates, so that 14 edge of permanent magnet
It is moved axially upwards, the upper end of permanent magnet 14 extend out to the outside of magnetic shield pipe 10, after driver 19 operates setting time
It shuts down, permanent magnet 14 can play the role of temporary supplemental magnetic field, and the magnetic fields that permanent magnet 14 generates are in magnetorheological bullet
Property body assembly 15, it is ensured that vibration isolator can work.
The present invention is exemplarily described in conjunction with attached drawing above.Obviously, present invention specific implementation is not by above-mentioned side
The limitation of formula.As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out；Or not
It is improved, above-mentioned conception and technical scheme of the invention are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (10)
1. MR elastomer vibration isolator including elastomer foot, magnet exciting coil and is set to magnetorheological on elastomer foot
Elastomer assembly, it is characterised in that: further include the regulating current device for adjusting the size of current in the magnet exciting coil.
2. MR elastomer vibration isolator according to claim 1, it is characterised in that: the regulating current device includes adjusting
Save seat, the moveable regulating piston being set in adjustment seat and the piston for connecting with regulating piston and connecting with shaking platform
Bar, adjustment seat have the first accommodating cavity and the second accommodating cavity, and regulating piston is located in the first accommodating cavity and regulating piston is for pushing away
Conduction liquid in dynamic first accommodating cavity flows in the second accommodating cavity.
3. MR elastomer vibration isolator according to claim 2, it is characterised in that: the adjustment seat is equipped with first and leads
Electric contact and the second conductive contact, the regulating current device further include the coil power supply circuit for magnet exciting coil power supply,
Coil power supply circuit includes the first power supply and is the first resistor being electrically connected with the first conductive contact and the second conductive contact, encourages
Magnetic coil is connected by first resistor with the first power supply.
4. MR elastomer vibration isolator according to claim 3, it is characterised in that: first conductive contact and second
Conductive contact is located at the inside of second accommodating cavity, and the first conductive contact and the second conductive contact are positioned opposite and in same
One height, the first conductive contact and the second conductive contact are connected by the conduction liquid being located in the second accommodating cavity.
5. MR elastomer vibration isolator according to claim 3 or 4, it is characterised in that: the adjustment seat is equipped with the
Three conductive contacts and the 4th conductive contact, it is electricity that the coil power supply circuit, which includes with third conductive contact and the 4th conductive contact,
The second resistance of connection, magnet exciting coil are connected by second resistance with the first power supply.
6. MR elastomer vibration isolator according to claim 5, it is characterised in that: the third conductive contact and the 4th
Conductive contact is located at the inside of second accommodating cavity, and third conductive contact and the 4th conductive contact are positioned opposite and in same
One height, third conductive contact are located at the top of first conductive contact, and the 4th conductive contact is located at the described second conductive touching
The top of point, third conductive contact and the 4th conductive contact are connected by the conduction liquid being located in the second accommodating cavity.
7. MR elastomer vibration isolator according to any one of claims 1 to 6, it is characterised in that: the magnet exciting coil is set
Set multiple, each magnet exciting coil is connect with a regulating current device respectively.
8. MR elastomer vibration isolator according to any one of claims 1 to 7, it is characterised in that: further include being set to institute
State the magnetic shield pipe inside elastomer foot, be movably set in magnetic shield pipe and it is extended to outside magnetic shield pipe forever
Magnet and the position control switched between stretching state and receiving state for controlling permanent magnet, the excitation wire
Snare is set on magnetic shield pipe.
9. MR elastomer vibration isolator according to claim 8, it is characterised in that: the position control includes using
In provide the driver of rotary force, rotatable setting and with the permanent magnet be the drive rod being threadedly coupled and with driver and
The transmission mechanism of drive rod connection.
10. MR elastomer vibration isolator according to claim 9, it is characterised in that: the transmission mechanism is gear biography
Motivation structure, transmission mechanism include the driving gear being connect with the driver and be set on the drive rod and with principal and subordinate's gear
The driven gear being meshed, driver are motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910324462.1A CN109973579B (en) | 2019-04-22 | 2019-04-22 | Magnetorheological elastomer vibration isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910324462.1A CN109973579B (en) | 2019-04-22 | 2019-04-22 | Magnetorheological elastomer vibration isolator |
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| Publication Number | Publication Date |
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| CN109973579A true CN109973579A (en) | 2019-07-05 |
| CN109973579B CN109973579B (en) | 2020-07-14 |
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| CN204267584U (en) * | 2014-11-17 | 2015-04-15 | 长安大学 | A kind of MR elastomer vibration isolator |
| CN104535872A (en) * | 2015-01-14 | 2015-04-22 | 天津市建电实业有限公司 | Testing bench for detecting power distribution cabinets in multistage mode |
| CN107165301A (en) * | 2017-07-07 | 2017-09-15 | 西京学院 | A kind of magnetorheological piezoelectricity vibration isolating suspension of controllable intellectualized |
| RU181684U1 (en) * | 2018-04-27 | 2018-07-26 | федеральное государственное автономное образовательное учреждение высшего образования "Российский университет дружбы народов" (РУДН) | Vibration damping chair |
| CN108730399A (en) * | 2018-06-20 | 2018-11-02 | 安徽工程大学 | Vibration insulating system |
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| JPS61116141A (en) * | 1984-11-13 | 1986-06-03 | Yakumo Kogyo Kk | Vibration damping equipment |
| CN104179118A (en) * | 2014-08-20 | 2014-12-03 | 重庆邮电大学 | Design method and device of anti-impact vibration isolation type magnetorheological pier bearing-damper system |
| CN204267584U (en) * | 2014-11-17 | 2015-04-15 | 长安大学 | A kind of MR elastomer vibration isolator |
| CN104535872A (en) * | 2015-01-14 | 2015-04-22 | 天津市建电实业有限公司 | Testing bench for detecting power distribution cabinets in multistage mode |
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| RU181684U1 (en) * | 2018-04-27 | 2018-07-26 | федеральное государственное автономное образовательное учреждение высшего образования "Российский университет дружбы народов" (РУДН) | Vibration damping chair |
| CN108730399A (en) * | 2018-06-20 | 2018-11-02 | 安徽工程大学 | Vibration insulating system |
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