CN108953448A - A kind of novel permanent magnetic formula bistable state vibration isolator - Google Patents
A kind of novel permanent magnetic formula bistable state vibration isolator Download PDFInfo
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- CN108953448A CN108953448A CN201810906521.1A CN201810906521A CN108953448A CN 108953448 A CN108953448 A CN 108953448A CN 201810906521 A CN201810906521 A CN 201810906521A CN 108953448 A CN108953448 A CN 108953448A
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- 230000005284 excitation Effects 0.000 claims abstract description 28
- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 103
- 229910052782 aluminium Inorganic materials 0.000 claims description 103
- 239000004411 aluminium Substances 0.000 claims description 82
- 230000001105 regulatory effect Effects 0.000 claims description 22
- 238000005538 encapsulation Methods 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims 1
- 238000002955 isolation Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 238000013016 damping Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
-
- 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
- F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
- F16F6/005—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid using permanent magnets only
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention relates to vibration control fields.Purpose is to provide a kind of novel permanent magnetic formula bistable state vibration isolator, which should have the characteristics that vibration isolating effect is good, size is smaller, easy to adjust.Technical solution is: a kind of novel permanent magnetic formula bistable state vibration isolator, it is characterised in that: including providing the mass-spring-damper module of linear force and providing the nonlinear block of non-linear force；The mass-spring-damper module includes load board and excitation plate arranged up and down, and the vertical vibration structure for being fixed on load board center is respectively equipped between load board and excitation plate and is evenly arranged on vertical vibration structure surrounding and connects three sets of displacement structures of load board and excitation plate；The nonlinear block is equipped with three sets, is evenly arranged on vertical vibration structure surrounding and is fixed in excitation plate.
Description
Technical field
The present invention relates to vibration control field, especially a kind of novel permanent magnetic formula bistable state vibration isolator.
Background technique
It is higher and higher to ambient enviroment vibration isolation requirement in the use and manufacturing process of the highly sophisticated devices such as aerospace, this
To vibration isolation element, more stringent requirements are proposed.Existing passive type vibration isolator is mostly monostable vibration isolator, optimal vibration isolation energy
Power suffers from the constraint of vibration isolator parameter, vibration isolation narrower bandwidth, and vibration isolator is only able to achieve the vibration damping function in a direction mostly
Energy.To realize multidirectional vibration isolation capability, also need to add vibration isolator in the corresponding direction, or turned using mechanism design
Change, this makes the vibration insulation structure of vibration isolator complicated and inefficiency, also reduce the utilization rate in space, at the same in engineering along with
A large amount of uncertain vibrations in direction, one direction vibration isolator have been unable to satisfy job requirement.
Summary of the invention
The purpose of the present invention is overcoming the shortcomings of in above-mentioned background technique, a kind of novel permanent magnetic formula bistable state vibration isolation is provided
Device, the vibration isolator should have the characteristics that vibration isolating effect is good, size is smaller, easy to adjust.
The technical scheme is that
A kind of novel permanent magnetic formula bistable state vibration isolator, it is characterised in that: including providing the mass-spring-damper of linear force
The nonlinear block of module and offer non-linear force；The mass-spring-damper module includes load board arranged up and down and swashs
Plate is encouraged, the vertical vibration structure for being fixed on load board center is respectively equipped between load board and excitation plate and is evenly arranged on Vertical Vibrating
Dynamic structure surrounding and three sets of displacement structures for connecting load board and excitation plate；The nonlinear block is equipped with three sets, is evenly arranged on vertical
It straight vibrational structure surrounding and is fixed in excitation plate.
The vertical vibration structure includes the upper fixed part fixed with load board, the lower movable part being arranged in below fixed part
And first be connected between fixed part and lower movable part adjusts screw；Arranged up and down the is equipped in fixed portion
One circular ring-shaped permanent-magnet body and the second circular ring-shaped permanent-magnet body；Third circular ring-shaped permanent-magnet body is equipped in the lower movable part.
The displacement structure includes the sleeve being fixed in excitation plate, can slide axially along sleeve and fixes with load board
Optical axis, encapsulation is on optical axis and both ends and load board and the fixed Hookean spring of sleeve.
The nonlinear block includes being fixed in excitation plate and being equipped with the supporting table of regulating tank, axially slidably position
The first aluminum round rod and the second aluminum round rod together, fixed with the first aluminum round rod and be rotatably positioned in supporting table the 6th
Aluminium annulus, the seventh aluminium annulus fixed with the second aluminum round rod, across regulating tank and connect the 7th aluminium annulus the second adjusting screw,
The fourth annular permanent magnet of first aluminum round rod front end is set.
The nonlinear block includes being fixed in excitation plate and being equipped with the supporting table of regulating tank, fix with the tenth aluminium annulus
Ladder aluminium bar, across regulating tank and connect the tenth aluminium annulus third adjust screw, be slidably located on ladder aluminium bar
The 5th annular permanent magnet, be slidably located on ladder aluminium bar and be arranged in the 5th annular permanent magnet and the tenth aluminium annulus
Between the 6th annular permanent magnet, the adjustment structure for adjusting the 6th annular permanent magnet axial position.
The nonlinear block includes being fixed in excitation plate and being equipped with the supporting table of regulating tank, fix with the tenth aluminium annulus
Ladder aluminium bar, across regulating tank and connect the tenth aluminium annulus third adjust screw, be slidably located on ladder aluminium bar
The 5th annular permanent magnet, encapsulation on ladder aluminium bar and both ends connect the tenth aluminium annulus and the 5th annular permanent magnet the second line
Property spring.
The first annular permanent magnet and the second annular permanent magnet are attracting, the second annular permanent magnet and third annular permanent magnet
Repel each other, third annular permanent magnet repels each other with fourth annular permanent magnet.
The first annular permanent magnet and the second annular permanent magnet are attracting, the second annular permanent magnet and third annular permanent magnet
Attracting, third annular permanent magnet repels each other with the 5th annular permanent magnet, and the 5th annular permanent magnet repels each other with the 6th annular permanent magnet.
The first annular permanent magnet and the second annular permanent magnet are attracting, the second annular permanent magnet and third annular permanent magnet
Attracting, third annular permanent magnet repels each other with the 5th annular permanent magnet.
The adjustment structure include on encapsulation ladder aluminium bar and be located at the 6th annular permanent magnet both ends the 8th aluminium annulus with
9th aluminium annulus, multiple second adjusting screws are nibbled after passing perpendicularly through the 8th aluminium annulus and the 9th aluminium annulus with the tenth aluminium annulus screw thread
It closes, is additionally provided with adjusting nut on the second adjusting screw, adjusting nut and the second adjusting screw fit are by the 6th annular permanent magnet, the
Eight aluminium annulus are fastened as a whole with the 9th aluminium annulus.
The beneficial effects of the present invention are:
The present invention using bistable state vibration isolation principle work when, have resonant frequency with transport is lower, vibration isolation bandwidth is wider,
The characteristics of resonance region inner part region transport is less than 1, the limitation of big quantum jump tradition vibration isolator, and permanent magnet are put down with upper and lower
The coupling of platform (load board and excitation plate) can introduce super damping effect, enhance low frequency range damping property；The present invention uses tripartite
When working to vibration isolation principle, radial vibration can be converted by the vibration in vertical direction, or convert Vertical Square for radial vibration
Vibration is further decreased to vibration, and using internal resonance, greatly promotion vibration isolation efficiency, while also reducing vertical vibration structure
Size；Meanwhile the active force in the present invention between each permanent magnet is contactless force, can effectively extend the service life of device, also
The vibration isolating effect under different vibration conditions can be improved by adjusting distance and the angle of permanent magnet.
Detailed description of the invention
Fig. 1 is the schematic perspective view of embodiment 1.
Fig. 2 is the schematic perspective view of embodiment 2.
Fig. 3 is the schematic perspective view of embodiment 3.
Fig. 4 is the partial structure diagram of Fig. 1.
Fig. 5 is the stereoscopic schematic diagram of nonlinear block in embodiment 1.
Fig. 6 is the stereoscopic schematic diagram of nonlinear block in embodiment 2.
Fig. 7 is the stereoscopic schematic diagram of nonlinear block in embodiment 3.
Fig. 8 is permanent magnet magnetization direction and distributing position schematic diagram in embodiment 1.
Fig. 9 is permanent magnet magnetization direction and distributing position schematic diagram in embodiment 2.
Specific embodiment
Below in conjunction with Figure of description, the invention will be further described, but the invention is not limited to following embodiments.
Embodiment 1
As shown in Figure 1, a kind of novel permanent magnetic formula bistable state vibration isolator, including providing the mass-spring-damper mould of linear force
The nonlinear block 2 of block 1 and offer non-linear force.
In the mass-spring-damper module, load board 1-1 and excitation plate 1-3 or more and horizontally disposed, load board with
Vertical vibration structure 1-4 and three sets of displacement structure 1-2 are respectively equipped between excitation plate, vertical vibration structure is fixed in load board
The heart, displacement structure is evenly arranged on vertical vibration structure surrounding and both ends connect load board and excitation plate.
The vertical vibration structure includes the upper fixed part fixed with load board, the lower movable part being arranged in below fixed part
And it connects upper fixed part and the first of lower movable part and adjusts screw 1-4-7.Fixed portion include multi-diameter shaft 1-4-6 and
From top to bottom successively encapsulation on multi-diameter shaft and be fixed as one the 4th aluminium annulus 1-4-2, the first circular ring-shaped permanent-magnet body 1-4-3,
Iron annulus 1-4-4 and the second circular ring-shaped permanent-magnet body 1-4-5, the top of multi-diameter shaft are fixed by third screw 1-4-1 with load board.Institute
Stating lower movable part includes the 5th aluminium annulus 1-4-8 arranged up and down and third circular ring-shaped permanent-magnet body 1-4-9.Described first adjusts screw
1-4-7 is connect axially across lower movable part and with the bottom thread of multi-diameter shaft from lower to upper, and rotation the first adjusting screw can be adjusted
Save the spacing of third annular permanent magnet and the second annular permanent magnet.
The displacement structure include be fixed in excitation plate and axis vertical arrangement sleeve, can slide axially along sleeve
And the optical axis 1-2-4 of top and load board fixation, the Hookean spring that encapsulation is on optical axis and both ends are fixed with load board and sleeve
1-2-5.The sleeve includes the second aluminium annulus 1-2-6 for setting gradually and being fixed as one from top to bottom, cooperates the straight of optical axis
Spool holds 1-2-7, third aluminium annulus 1-2-8.The top of the optical axis is fixed by the first screw 1-2-1 with load board.It is described
The top of Hookean spring is fixed with the first aluminium annulus 1-2-3, and the first aluminium annulus is fixed by the second screw 1-2-2 with load board,
The bottom end of Hookean spring and the second aluminium annulus of sleeve are fixed.
The nonlinear block is equipped with three sets, is evenly arranged on vertical vibration structure surrounding and is fixed in excitation plate, and is non-
Linear block and displacement structure arranged for interval.
As shown in figure 5, the first bottom plate 2-11 is fixed on two the first support plate 2-6 compositions in the nonlinear block
Supporting table in excitation plate, the first support plate are equipped with regulating tank 2-12 (strip groove arranged vertically), on the first aluminum round rod 2-4
It is equipped with the 7th aluminium annulus 2-9 equipped with the 6th aluminium annulus 2-5, the second aluminum round rod 2-7, fourth annular permanent magnet 2-3 passes through the 4th
Screw 2-1 and gasket 2-2 is fixed on the front end (preventing fourth annular permanent magnet axial float at work) of the first aluminum round rod, the
Two aluminum round rods are axially slidably inserted into the first aluminum round rod rear end and (open to be formed on the first aluminum round rod and match with the second aluminum round rod
Slide opening, the second aluminum round rod and the first aluminum round rod are slidably matched), the two articles of third aluminium being arranged symmetrically circles are fixed on the 6th aluminium annulus
Stick 2-13 is rotatably positioned by third aluminum round rod in the first support plate as the support shaft rotated horizontally, the 6th aluminium annulus
On；Second, which adjusts screw 2-10, passes through regulating tank and connects the 7th aluminium annulus.Screw is adjusted in regulating tank by changing second
The adjustable fourth annular permanent magnet in position and third annular permanent magnet between angle, thus with third annular permanent magnet produce
Raw different vibration isolating effect.
The axis direction of the fourth annular permanent magnet intersects with the axis direction of third annular permanent magnet, third aluminum round rod
Axis both perpendicular to the axis direction of third annular permanent magnet and the axis direction of fourth annular permanent magnet.
As shown in figure 8, the first annular permanent magnet and the second annular permanent magnet are attracting (M1 and M2 are attracting), the second annular
Permanent magnet and third annular permanent magnet repel each other (M2 and M3 repel each other), and third annular permanent magnet and fourth annular permanent magnet repel each other (M3
Repel each other with M4).
The present embodiment is bistable state vibration isolation principle, and specific working mode is as follows:
Vibration is transmitted on based platform, and Relative Vibration occurs for nonlinear block and vertical vibration structure, since magnetic force generates
Rigidity be negative so that system global stiffness reduce, thereby reduce intrinsic frequency, at the same time due to bistable presence, make
It obtains intrinsic frequency to further decrease, finally improves vibration isolation bandwidth.
Embodiment 2
As shown in Fig. 2, a kind of novel permanent magnetic formula bistable state vibration isolator, including providing the mass-spring-damper mould of linear force
The nonlinear block 3 of block 1 and offer non-linear force.Difference from example 1 is that:
As shown in fig. 6, the second bottom plate 3-11 is fixed on two the second support plate 3-9 compositions in the nonlinear block
Supporting table in excitation plate, the second support plate are equipped with regulating tank 3-12 (regulating tank is the strip groove arranged vertically), ladder aluminium
Stick 3-1 is fixed with the tenth aluminium annulus 3-8, and third adjusts screw 3-10 and passes through regulating tank and connect the tenth aluminium annulus, the 5th annular
Permanent magnet 3-2 and the 6th annular permanent magnet 3-4 is slidably located on ladder aluminium bar that (ladder on ladder aluminium bar is for preventing
5th annular permanent magnet is axially sliding), the 6th annular permanent magnet is between the 5th annular permanent magnet and the tenth aluminium annulus, and the 6th
Annular permanent magnet connects the tenth aluminium annulus by adjustment structure.By change third adjust position of the screw in regulating tank can be with
The angle and height between the 5th annular permanent magnet, the 6th annular permanent magnet and third annular permanent magnet are adjusted, thus and third
Annular permanent magnet generates different vibration isolating effects.
The adjustment structure includes the 8th aluminium annulus 3-3 on encapsulation ladder aluminium bar and positioned at the 6th annular permanent magnet both ends
With the 9th aluminium annulus 3-6, multiple second adjustings screw 3-5 pass perpendicularly through after the 8th aluminium annulus and the 9th aluminium annulus with the tenth aluminium circle
Ring screw thread engages, and adjusting nut 3-7 is additionally provided on the second adjusting screw, and adjusting nut and second adjust screw fit for the 6th ring
Shape permanent magnet, the 8th aluminium annulus are fastened as a whole with the 9th aluminium annulus.Rotation the second adjusting screw is just adjustable the 6th annular forever
The spacing of magnet and the tenth aluminium annulus, to change the distance between the 5th annular permanent magnet and third annular permanent magnet.
The axis direction of 5th annular permanent magnet and the axis direction of the 6th annular permanent magnet are coaxial and also with
The axis direction of three annular permanent magnets intersects.
As shown in figure 9, the first annular permanent magnet and the second annular permanent magnet are attracting (M1 and M2 are attracting), the second annular
Permanent magnet and third annular permanent magnet are attracting (M2 and M3 attracting), and third annular permanent magnet and the 5th annular permanent magnet repel each other (M3
Repel each other with M5), the 5th annular permanent magnet and the 6th annular permanent magnet repel each other (M5 and M6 repel each other).
The present embodiment is three direction vibration isolation principles, and specific working mode is as follows:
1) vibration is transmitted on based platform, and Relative Vibration occurs for nonlinear block and vertical vibration structure；
2) vibration a part of vertical direction is converted into the vibration in horizontal direction, i.e., the 5th annular permanent magnet is in third ring
The non-linear force effect of shape permanent magnet is lower to generate vibration, to reduce the vibration on vertical direction；
3) vertical vibration structure and every suit nonlinear block constitute two freedom degrees, and are all Non-Linear Vibration, utilize
Internal resonance further reduced the intrinsic frequency of system.
Embodiment 3
As shown in figure 3, a kind of novel permanent magnetic formula bistable state vibration isolator, including providing the mass-spring-damper mould of linear force
The nonlinear block 4 of block 1 and offer non-linear force.With embodiment 2 the difference is that:
As shown in fig. 7, the second bottom plate 3-11 is fixed on two the second support plate 3-9 compositions in the nonlinear block
Supporting table in excitation plate, the second support plate are equipped with regulating tank 3-12 (regulating tank is the strip groove arranged vertically), ladder aluminium
Stick 3-1 is fixed on the tenth aluminium annulus 3-8, and third adjusts screw 3-10 and passes through regulating tank and connect the tenth aluminium annulus, five rings
Shape permanent magnet 3-2 is slidably located on ladder aluminium bar, and the second Hookean spring 4-1 encapsulation is on ladder aluminium bar and both ends connect
Tenth aluminium annulus and the 5th annular permanent magnet, the 5th annular permanent magnet can be along ladder aluminium bar axial vibrations.
The axis direction of 5th annular permanent magnet intersects with the axis direction of third annular permanent magnet.
The first annular permanent magnet and the second annular permanent magnet are attracting, the second annular permanent magnet and third annular permanent magnet
Attracting, third annular permanent magnet repels each other with the 5th annular permanent magnet.
The working principle of embodiment 3 is identical as the working principle of embodiment 2.
Claims (10)
1. a kind of novel permanent magnetic formula bistable state vibration isolator, it is characterised in that: including providing the mass-spring-damper mould of linear force
The nonlinear block of block (1) and offer non-linear force；The mass-spring-damper module (1) includes load board arranged up and down
(1-1) and excitation plate (1-3), is respectively equipped with the vertical vibration structure for being fixed on load board center between load board and excitation plate
It (1-4) and is evenly arranged on vertical vibration structure surrounding and connects three sets of displacement structures (1-2) of load board and excitation plate；It is described non-
Linear block is equipped with three sets, is evenly arranged on vertical vibration structure surrounding and is fixed in excitation plate.
2. novel permanent magnetic formula bistable state vibration isolator according to claim 1, it is characterised in that: the vertical vibration structure packet
It includes the upper fixed part fixed with load board, the lower movable part being arranged in below fixed part and is connected to upper fixed part and lower activity
First between portion adjusts screw (1-4-7)；The first circular ring-shaped permanent-magnet body (1-4-3) arranged up and down is equipped in fixed portion
With the second circular ring-shaped permanent-magnet body (1-4-5)；Third circular ring-shaped permanent-magnet body (1-4-9) is equipped in the lower movable part.
3. novel permanent magnetic formula bistable state vibration isolator according to claim 2, it is characterised in that: the displacement structure includes solid
The sleeve that is scheduled in excitation plate can slide axially and the optical axis (1-2-4) fixed with load board, encapsulation are on optical axis along sleeve
And the Hookean spring (1-2-5) that both ends are fixed with load board and sleeve.
4. novel permanent magnetic formula bistable state vibration isolator according to claim 1 or 3, it is characterised in that: the nonlinear block
Including be fixed in excitation plate and be equipped with regulating tank supporting table, axially slidably the first aluminum round rod (2- for being positioned together
4) it fixes with the second aluminum round rod (2-7), with the first aluminum round rod and is rotatably positioned the 6th aluminium annulus (2- in supporting table
5), the seventh aluminium annulus (2-9) fixed with the second aluminum round rod, across regulating tank and connect the second adjusting screw of the 7th aluminium annulus
(2-10), the fourth annular permanent magnet (2-3) that the first aluminum round rod front end is set.
5. novel permanent magnetic formula bistable state vibration isolator according to claim 1 or 3, it is characterised in that: the nonlinear block
Including be fixed in excitation plate and be equipped with the supporting table of regulating tank, the ladder aluminium bar (3-1) fixed with the tenth aluminium annulus (3-8),
Across regulating tank and connect the tenth aluminium annulus third adjust screw (3-10), be slidably located on ladder aluminium bar the 5th
Annular permanent magnet (3-2) is slidably located on ladder aluminium bar and is arranged in the 5th annular permanent magnet and the tenth aluminium annulus
Between the 6th annular permanent magnet (3-4), the adjustment structure for adjusting the 6th annular permanent magnet axial position.
6. novel permanent magnetic formula bistable state vibration isolator according to claim 1 or 3, it is characterised in that: the nonlinear block
Including be fixed in excitation plate and be equipped with the supporting table of regulating tank, the ladder aluminium bar (3-1) fixed with the tenth aluminium annulus (3-8),
Across regulating tank and connect the tenth aluminium annulus third adjust screw (3-10), be slidably located on ladder aluminium bar the 5th
Annular permanent magnet (3-2), encapsulation are on ladder aluminium bar and both ends connect the second line of the tenth aluminium annulus and the 5th annular permanent magnet
Property spring (4-1).
7. novel permanent magnetic formula bistable state vibration isolator according to claim 4, it is characterised in that: the first annular permanent magnet
Attracting with the second annular permanent magnet, the second annular permanent magnet repels each other with third annular permanent magnet, third annular permanent magnet and the 4th
Annular permanent magnet repels each other.
8. novel permanent magnetic formula bistable state vibration isolator according to claim 5, it is characterised in that: the first annular permanent magnet
Attracting with the second annular permanent magnet, the second annular permanent magnet and third annular permanent magnet are attracting, third annular permanent magnet and the 5th
Annular permanent magnet repels each other, and the 5th annular permanent magnet repels each other with the 6th annular permanent magnet.
9. novel permanent magnetic formula bistable state vibration isolator according to claim 6, it is characterised in that: the first annular permanent magnet
Attracting with the second annular permanent magnet, the second annular permanent magnet and third annular permanent magnet are attracting, third annular permanent magnet and the 5th
Annular permanent magnet repels each other.
10. novel permanent magnetic formula bistable state vibration isolator according to claim 5, it is characterised in that: the adjustment structure includes
The 8th aluminium annulus (3-3) and the 9th aluminium annulus (3-6) on encapsulation ladder aluminium bar and positioned at the 6th annular permanent magnet both ends, it is multiple
Second adjusting screw (3-5) is engaged after passing perpendicularly through the 8th aluminium annulus and the 9th aluminium annulus with the tenth aluminium annulus screw thread, and second adjusts
It is additionally provided with adjusting nut (3-7) on section screw, adjusting nut and second adjusts screw fit for the 6th annular permanent magnet, the 8th aluminium
Annulus is fastened as a whole with the 9th aluminium annulus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810906521.1A CN108953448B (en) | 2018-08-10 | 2018-08-10 | Permanent magnet bistable vibration isolator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810906521.1A CN108953448B (en) | 2018-08-10 | 2018-08-10 | Permanent magnet bistable vibration isolator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513422A (en) * | 2019-08-01 | 2019-11-29 | 浙江理工大学 | A kind of non-linear eddy current damper of new lever type |
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| 严博: "《负电阻电磁分支电路阻尼隔振系统试验技术研究》", 《振动工程学报》, vol. 29, no. 6 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513422A (en) * | 2019-08-01 | 2019-11-29 | 浙江理工大学 | A kind of non-linear eddy current damper of new lever type |
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| Publication number | Publication date |
|---|---|
| CN108953448B (en) | 2024-03-26 |
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