CN108953473B - A kind of vibration isolator of achievable horizontal decoupling - Google Patents
A kind of vibration isolator of achievable horizontal decoupling Download PDFInfo
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- CN108953473B CN108953473B CN201810926498.2A CN201810926498A CN108953473B CN 108953473 B CN108953473 B CN 108953473B CN 201810926498 A CN201810926498 A CN 201810926498A CN 108953473 B CN108953473 B CN 108953473B
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
-
- 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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
-
- 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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- General Engineering & Computer Science (AREA)
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- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention discloses a kind of vibration isolator.Positive stiffness elements, magnetic damping element and the magnetic negative stiffness element of the vibration isolator are arranged in parallel between substrate and middle plate;Positive stiffness elements are located at the center of substrate, and magnetic damping element and magnetic negative stiffness element in circumferical direction are uniformly arranged on the edge of substrate;The center of positive stiffness elements passes through a swinging mechanism and connects with positive stiffness elements;Swinging mechanism using flexible swing rod the low vibration come level of isolation direction of horizontal rigidity;Each magnetic damping element and each magnetic negative stiffness element, are all divided into coaxial two parts, and two parts are fixedly connected with substrate and middle plate respectively, are acted between two parts by electromagnetic force generation, no Mechanical Contact and abrasion.The vibration isolator of achievable horizontal decoupling of the invention can realize the low dynamic rate of high static rigidity in vertical direction, and horizontal direction is mutually decoupled with vertical direction vibration.
Description
Technical field
The present invention relates to mechanical engineering vibration isolation and damping technical fields, more particularly to a kind of vibration isolation of achievable horizontal decoupling
Device.
Background technique
As science and technology is increasingly developed, manufacture and the required precision measured are higher and higher, and people are to ambient vibration and noise
It is required that it is also higher and higher, however the source for generating vibration is more and more, becomes increasingly complex, objective requirement has more advanced vibration
Dynamic control technology.However limitation of the existing vibration isolator due to bearing capacity to support stiffness, cause intrinsic frequency to be difficult to decrease,
It is difficult to meet the requirement of superlow frequency vibration isolating.
Summary of the invention
The object of the present invention is to provide a kind of vibration isolators of achievable horizontal decoupling, realize high static rigidity in vertical direction
Low dynamic rate, while the decoupling and vibration isolation of vibration are realized in the horizontal direction, complete superlow frequency vibration isolating.
To achieve the above object, the present invention provides following schemes:
A kind of vibration isolator of achievable horizontal decoupling, including it is substrate, middle plate, load board, swinging mechanism, positive stiffness elements, more
A magnetic damping element and multiple magnetic negative stiffness elements;
The substrate, the middle plate and the load board are horizontally disposed and are parallel to each other;The positive stiffness elements, Duo Gesuo
It states magnetic damping element and multiple magnetic negative stiffness elements is arranged in parallel between the substrate and the middle plate;The positive rigidity member
Part is located at the center of the substrate, and multiple magnetic damping elements and multiple magnetic negative stiffness elements are along the circumferential direction uniform
The edge of the substrate is set;
The positive stiffness elements are hollow elastic element;The center of the positive stiffness elements is across a swinging mechanism and just just
Spend element series connection;The swinging mechanism includes swing rod and support column;The swing rod be it is multiple, multiple swing rods are circumferentially uniform
The periphery of the support column is set;The top of the support column passes through the middle plate and is fixed in the load board;The pendulum
It is fixed at the top of bar on the middle plate;
The center of each magnetic damping element and each magnetic negative stiffness element both passes through one along the vertical direction and leads
To axis, the middle plate is passed through by bearing at the top of the guiding axis, bottom is fixed on the substrate by shaft stool;
Each magnetic negative stiffness element includes inner ring group of magnets, outer ring group of magnets and shell;The inner ring group of magnets is solid
Surely it is set on guiding axis;It is peripheral and same with the inner ring group of magnets that the outer ring group of magnets is set in the inner ring group of magnets
Axis;The outer ring group of magnets is fixed by shell and middle plate;
Each magnetic damping element includes magnet ring group and conductor tube;The magnet ring group fixation is set in the guiding axis
On;It is peripheral and coaxial with the magnet ring group that the conductor tube is set in the magnet ring group;The conductor tube is fixed on the middle plate
On.
Optionally, the magnetic negative stiffness element further includes two the first fixed rings;Two first fixed rings distinguish position
In the upper and lower ends of the inner ring group of magnets, for the inner ring group of magnets to be clamped and is fixed on the guiding axis;It is described
Outer ring group of magnets is identical as the axial height of the inner ring group of magnets.
Optionally, end cap is provided with below the shell of the magnetic negative stiffness element, the end cap is bolted
On the housing;The end cap is for the outer ring group of magnets to be fixed in the shell.
Optionally, the magnetic damping element further includes two the second fixed rings;Two second fixed rings are located at
The upper and lower ends of the magnet ring group, for being clamped the magnet ring group and being fixed on the guiding axis.
Optionally, it is fixed with support plate in the bottom of the support column, the bottom of each swing rod is each attached to described
In support plate.
Optionally, which further includes guide cylinder, and the guide cylinder is set in described just rigid
Member outboard is spent, and the guide cylinder is fixed on the substrate and/or the middle plate.
Optionally, the positive stiffness elements are helical spring, rubber or air spring.
The specific embodiment provided according to the present invention, the invention discloses following technical effects:
Under equilbrium position, the outer ring group of magnets and inner ring group of magnets of magnetic negative stiffness element are in sustained height, because of magnetic field
Symmetrically, generating power is 0;When vibration, middle plate and substrate generate relative displacement, and the power that positive stiffness elements generate makes the two reply balance
Position, and the power that magnetic negative stiffness element generates makes the two far from equilbrium position to which the power reduction for offsetting positive stiffness elements is comprehensive just
Degree, realizes the low dynamic rate of high static rigidity.In magnetic damping element, because of the relative motion of magnet ring group and conductor tube, according to electricity
In magnetic induction principle conductor tube generate vortex, eddy current is directly proportional to substrate and middle plate speed of related movement, eddy current magnetism and
The magnetic force direction of magnet ring group hinders relative motion, and size is directly proportional to speed of related movement size.Swing rod is elongated, and horizontal direction is rigid
Spend lower for horizontal direction vibration isolation, while swing rod generates deformation and also avoids positive rigidity mechanism and bears excessive horizontal load.
The present invention is in parallel by multiple magnetic negative stiffness elements and positive stiffness elements, to realize the high static rigidity of vertical direction
Low dynamic rate reduces system frequency under the premise of guaranteeing bearing capacity, widens vibration isolation frequency band, realize ultralow frequency every
Vibration.Magnetic damping element is introduced simultaneously, is increased system damping rate, is further increased vibration isolating effect.By swinging mechanism and quasi- zero stiffness machine
Structure is arranged in series, and using the low decoupling for realizing horizontal direction and vertical direction vibration of swing rod horizontal rigidity, and completes horizontal direction
Vibration isolation.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the overall structure figure for the vibration isolator embodiment that horizontal decoupling can be achieved in the present invention;
Fig. 2 is the elevational cross-sectional view for the vibration isolator embodiment that horizontal decoupling can be achieved in the present invention;
Fig. 3 is the sectional structure chart of the magnetic negative stiffness element for the vibration isolator embodiment that horizontal decoupling can be achieved in the present invention;
Fig. 4 is the sectional structure chart of the magnetic damping element for the vibration isolator embodiment that horizontal decoupling can be achieved in the present invention;
Fig. 5 is the structure chart of the swinging mechanism for the vibration isolator embodiment that horizontal decoupling can be achieved in the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of vibration isolators of achievable horizontal decoupling, and the low dynamic of high static rigidity may be implemented
Rigidity.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is the overall structure figure for the vibration isolator embodiment that horizontal decoupling can be achieved in the present invention.
Fig. 2 is the elevational cross-sectional view for the vibration isolator embodiment that horizontal decoupling can be achieved in the present invention.
Referring to Fig. 1 and Fig. 2, the vibration isolator that horizontal decoupling can be achieved, including substrate 1, middle plate 2, load board 3, swinging mechanism
8, guide cylinder 10, positive stiffness elements 9, multiple magnetic damping elements 11 and multiple magnetic negative stiffness elements 7.
The substrate 1, the middle plate 2 and the load board 3 are horizontally disposed and are parallel to each other;It is the positive stiffness elements 9, more
A magnetic damping element 11 and multiple magnetic negative stiffness elements 7 are arranged in parallel between the substrate 1 and the middle plate 2;Institute
State the center that positive stiffness elements 9 are located at the substrate 1, multiple magnetic damping elements 11 and multiple magnetic negative stiffness elements 7
Along the circumferential direction it is uniformly arranged on the edge of the substrate 1;As an alternative embodiment, multiple magnetic damping members
Part 11 and the multiple interval of magnetic negative stiffness element 7 settings.
The positive stiffness elements 9 are hollow elastic element;The center of the positive stiffness elements 9 pass through swinging mechanism 8 with
Positive stiffness elements 9 are connected;The swinging mechanism 8 passes through the vibration in 802 level of isolation direction of flexible swing rod.
The center of each magnetic damping element 11 and each magnetic negative stiffness element 7 both passes through one along the vertical direction
Guiding axis 4, passes through the middle plate 2 by bearing 5 at the top of the guiding axis 4, and bottom is fixed on the substrate 1 by shaft stool 6
On.
The guide cylinder 10 is set in 9 outside of positive stiffness elements, and the guide cylinder 10 is fixed on the substrate 1
And/or on the middle plate 2.
The positive stiffness elements 9 are helical spring, rubber or air spring.
The substrate 1 is used to for the vibration isolator being installed to pedestal, and the load board 3 is used to carry the negative of vibration isolator
It carries.Positive stiffness elements 9, magnetic negative stiffness element 7 and magnetic damping element 8 are arranged in parallel for plate 2 and 1 vertical direction of substrate in being isolated
Vibration.The vibration of plate 2 and 3 horizontal direction of load board, swinging mechanism 8 are connected with positive stiffness elements 9 and are realized in the isolation of swinging mechanism 8
The decoupling of horizontal direction and vertical direction vibration.The guiding axis 4 is used for the perpendicular of magnetic negative stiffness element 7 and magnetic damping element 11
Straight movement play the guiding role, and plate 2 can only move in the vertical direction in guarantee.10 dimidiation of guide cylinder, is separately fixed at base
On plate 1 and middle plate 2.The guide cylinder 10 is for limiting the deflection of positive stiffness elements 9 in the horizontal direction.Positive stiffness elements 9 are used
Plate and load in support, and substrate and middle plate are isolated.
Fig. 3 is the sectional structure chart of the magnetic negative stiffness element for the vibration isolator embodiment that horizontal decoupling can be achieved in the present invention.
Referring to Fig. 3, each magnetic negative stiffness element 7 is solid including inner ring group of magnets 703, outer ring group of magnets 702, first
Determine ring 704 and shell 705;The fixation of inner ring group of magnets 703 is set on guiding axis 4;The outer ring group of magnets 702 is set in
703 periphery of inner ring group of magnets is simultaneously coaxial with the inner ring group of magnets 703;The outer ring group of magnets 702 is embedded in shell 705 simultaneously
Fixed to the middle plate;
First fixed ring 704 is located at the upper and lower ends of the inner ring group of magnets 703, is used for the inner ring group of magnets
703 clamp and are fixed on the guiding axis 4;The axial height phase of the outer ring group of magnets 702 and the inner ring group of magnets 703
The outer ring group of magnets 702 and the inner ring group of magnets 703 are located at sustained height under same and equilbrium position.
The inner ring group of magnets 703 includes multiple internal magnetic rings;The outer ring group of magnets 702 includes multiple outer magnetic rings;It is described
Outer magnetic ring is identical as the quantity of the internal magnetic ring;Each internal magnetic ring and each outer magnetic ring are axial charging, and every
A internal magnetic ring is identical as the magnetizing direction of the outer magnetic ring of respective heights.
The lower section of the shell 705 is provided with end cap 701, the end cap 701 is bolted on the shell 705
On;The end cap 701 is for the outer ring group of magnets 702 to be fixed in the shell 705.
When being configured to internal magnetic ring and outer magnetic ring, need to guarantee between inner ring group of magnets 703 and outer ring group of magnets 702
Magnetic force can be axially formed negative stiffness.Under equilbrium position, outer ring group of magnets and the inner ring group of magnets of magnetic negative stiffness element are in
Sustained height, because magnetic field is symmetrical, generating power is 0;When vibration, middle plate and substrate generate relative displacement, and positive stiffness elements generate
Power both make to reply equilbrium position, and the power that magnetic negative stiffness element generates both make it is comprehensive rigid to reduce far from equilbrium position
Degree, realizes the low dynamic rate of high static rigidity.According to the positive stiffness elements 9 of vibration isolator, appropriate number of magnetic negative stiffness member is selected
The integral stiffness that can reduce vibration isolator in parallel with positive stiffness elements 9 of part 7 reaches quasi- zero stiffness, so as to not influence vibration isolation
The intrinsic frequency that vibration isolator is reduced under the premise of the bearing capacity of device, can widen vibration isolation frequency band, improve vibration isolator in vertical side
To anti-vibration performance.
The configuration mode of a kind of outer ring group of magnets and inner ring group of magnets: outer ring group of magnets 702 is disclosed in Fig. 3 of the invention
Including three outer magnetic rings, inner ring group of magnets 703 includes three internal magnetic rings.Two neighboring internal magnetic ring or two neighboring outer magnetic ring fill
Magnetic direction is opposite.
Fig. 4 is the sectional structure chart of the magnetic damping element for the vibration isolator embodiment that horizontal decoupling can be achieved in the present invention.
Referring to fig. 4, each magnetic damping element 11 includes magnet ring group 1102, the second fixed ring 1103 and conductor tube
1101;The fixation of magnet ring group 1102 is set on the guiding axis 4;The conductor tube 1101 is set in the magnet ring group 1102
Periphery is simultaneously coaxial with the magnet ring group 1102;Second fixed ring 1103 is located at the upper and lower ends of the magnet ring group 1102, uses
In by the magnet ring group 1102 clamp and be fixed on the guiding axis 4;The conductor tube 1101 is fixed on the middle plate 2.
The magnet ring group 1102 includes the identical permanent-magnetic clamp of multiple sizes, and multiple permanent-magnetic clamps are set gradually along axial direction.
The conductor tube 1101 is that aluminium, copper etc. will not be by the conductor materials of magnet ring.The magnetizing direction of each permanent-magnetic clamp
It all can be axially or radially.When substrate 1 and middle 2 relative motion of plate, magnet ring group 1102 and conductor tube 1101 equally can be opposite
Movement will generate vortex in conductor tube 1101 according to electromagnetic induction principle, and eddy current size is directly proportional to speed of related movement,
The magnetic force direction of eddy current magnetism and magnet ring group hinders relative motion, and size is directly proportional to speed of related movement size., reasonable disposition
Magnetic damping number of elements can increase the ratio of damping of vibration isolator, reduce resonance, improve vibration isolating effect.
Fig. 4 shows a kind of configuration mode of magnet ring group: magnet ring group 1102 includes three permanent-magnetic clamps, the permanent-magnetic clamp of the top
Magnetizing direction is that radially, the magnetizing direction of the permanent-magnetic clamp of bottom is radially inward that intermediate permanent-magnetic clamp magnetizes
Direction is axially upward.
Fig. 5 is the structure chart of the swinging mechanism for the vibration isolator embodiment that horizontal decoupling can be achieved in the present invention.
Referring to Fig. 5, which includes swing rod 802, support column 803 and support plate 801;And the swing rod 802 is more
A, multiple swing rods 802 are circumferentially uniformly arranged on the periphery of the support column 803;It wears at the top of the support column 803
The middle plate 2 is crossed to be fixed in the load board 3;The top of each swing rod 802 is each attached on the middle plate 2.It is described
Support plate 801 is fixed on 803 bottom of support column, and the bottom of each swing rod 802 is each attached to the support plate 801
On.The bottom of the support plate 801 is hanging.
The support column 803 is to be threadedly coupled with the fixed form of load board 3, the fixation of support column 803 and support plate 801
Mode is tight fit mode.
Rigidity on 802 vertical direction of swing rod is much smaller than the support column 803, but much larger than middle plate 2 and substrate 1 it
Between integral stiffness after positive stiffness elements 9 and multiple 7 parallel connections of magnetic negative stiffness element.Swing rod 802 is guaranteeing vertical direction carrying
Premise down cross-sectional answer it is as small as possible, to guarantee lower horizontal rigidity.For convenient for swing rod 802 and bottom plate 801 and middle plate 2
Fixed, the both ends of the swing rod 802 can be with overstriking.Swinging mechanism is connected with positive stiffness elements, and rigidity is lower in the horizontal direction for swing rod
It can achieve the effect of horizontal direction vibration isolation, while avoiding the load of excessive horizontal direction with the deformation of swing rod horizontal direction
It is transmitted to positive rigidity mechanism, to realize the decoupling of horizontal direction vibration with vertical direction vibration.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention;At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (7)
1. a kind of vibration isolator of achievable horizontal decoupling, including substrate, middle plate, load board, swinging mechanism and positive stiffness elements, described
Substrate, the middle plate and the load board are horizontally disposed and are parallel to each other, and the positive stiffness elements are hollow elastic element;
It is characterized in that, the vibration isolator further includes multiple magnetic damping elements and multiple magnetic negative stiffness elements;
The positive stiffness elements, multiple magnetic damping elements and multiple magnetic negative stiffness elements be arranged in parallel the substrate with
Between the middle plate;The positive stiffness elements are located at the center of the substrate, multiple magnetic damping elements and multiple magnetic
Negative stiffness element is along the circumferential direction uniformly arranged on the edge of the substrate;
The center of the positive stiffness elements passes through a swinging mechanism and connects with positive stiffness elements;The swinging mechanism includes swing rod and branch
Dagger;The swing rod be it is multiple, multiple swing rods are circumferentially uniformly arranged on the periphery of the support column;The support column
Top pass through the middle plate be fixed in the load board;It is fixed at the top of the swing rod on the middle plate;
The center of each magnetic damping element and each magnetic negative stiffness element both passes through a guiding axis along the vertical direction,
The middle plate is passed through by bearing at the top of the guiding axis, bottom is fixed on the substrate by shaft stool;
Each magnetic negative stiffness element includes inner ring group of magnets, outer ring group of magnets and shell;The inner ring group of magnets fixing sleeve
It is located on guiding axis;It is peripheral and coaxial with the inner ring group of magnets that the outer ring group of magnets is set in the inner ring group of magnets;Institute
Outer ring group of magnets is stated to fix by shell and middle plate;
Each magnetic damping element includes magnet ring group and conductor tube;The magnet ring group fixation is set on the guiding axis;
It is peripheral and coaxial with the magnet ring group that the conductor tube is set in the magnet ring group;The conductor tube is fixed on the middle plate.
2. a kind of vibration isolator of achievable horizontal decoupling according to claim 1, which is characterized in that the magnetic negative stiffness member
Part further includes two the first fixed rings;Two first fixed rings are located at the upper and lower ends of the inner ring group of magnets, use
In the inner ring group of magnets is clamped and is fixed on the guiding axis;The axis of the outer ring group of magnets and the inner ring group of magnets
It is identical to height.
3. a kind of vibration isolator of achievable horizontal decoupling according to claim 1, which is characterized in that the magnetic damping element
It further include two the second fixed rings;Two second fixed rings are located at the upper and lower ends of the magnet ring group, are used for institute
Magnet ring group is stated to clamp and be fixed on the guiding axis.
4. a kind of vibration isolator of achievable horizontal decoupling according to claim 1, which is characterized in that in the support column
Bottom is fixed with support plate, and the bottom of each swing rod is each attached in the support plate.
5. a kind of vibration isolator of achievable horizontal decoupling according to claim 1, which is characterized in that it further include guide cylinder,
The guide cylinder is set on the outside of the positive stiffness elements, and the guide cylinder is fixed on the substrate and/or the middle plate.
6. a kind of vibration isolator of achievable horizontal decoupling according to claim 1, which is characterized in that the positive stiffness elements
For helical spring, rubber or air spring.
7. a kind of vibration isolator of achievable horizontal decoupling according to claim 1, which is characterized in that in the magnetic negative stiffness
End cap is provided with below the shell of element, the end cap is bolted on the shell;The end cap is used for institute
Outer ring group of magnets is stated to be fixed in the shell.
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