CN107740842A - Magnetic suspension low frequency vibration damping device - Google Patents
Magnetic suspension low frequency vibration damping device Download PDFInfo
- Publication number
- CN107740842A CN107740842A CN201711175584.6A CN201711175584A CN107740842A CN 107740842 A CN107740842 A CN 107740842A CN 201711175584 A CN201711175584 A CN 201711175584A CN 107740842 A CN107740842 A CN 107740842A
- Authority
- CN
- China
- Prior art keywords
- core bar
- damper unit
- wire
- vibration damping
- low frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- 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
-
- 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
- F16F15/08—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
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of magnetic suspension low frequency vibration damping device, on being installed on, damper unit group between bottom base, each damper unit in damper unit group includes wire rubber sleeve and upper in wire rubber sleeve, lower core bar, on, it is respectively equipped with lower core bar, lower hot-wire coil, upper load-bearing bearing installation connection on the upper end and top base of upper core bar, lower supporting bearing installation connection on the lower end and bottom base of lower core bar, on, the opposite end of lower core bar is respectively equipped with, lower magnet, upper core bar or lower core bar are provided with displacement transducer, on, lower hot-wire coil connects controlling and regulating system by hot-wire coil lead-out wire with sensor lead-out wire respectively with displacement transducer.The present invention detects iron core bar shift value by displacement transducer, and the shift value received is fed back into controlling and regulating system regulation size of current, negative-feedback regu- lation is carried out to the size of magnetic force, so as to realize the Optimal regulation and control to heavily loaded microwave vibrations.
Description
Technical field
The present invention relates to Control Technique of Vibration and Noise, specially a kind of magnetic suspension low frequency vibration damping device.
Background technology
With the continuous development of manufacturing process, the vibration problem for many manufacturing equipments is especially because mechanical system is used to
The low-frequency resonance problem that amount is mismatched and brought is difficult control always.
Common shock absorber species has metal spring, rubber spring, air spring, hydro-pneumatic spring, fluid pressure type spring, magnetic current
Become the species such as spring.Wherein, the country is to use rubber sleeve and air spring vibration reduction for the most frequently used of vibration damping, but these vibration isolators
Do not have good vibration isolating effect for low-frequency vibration caused by excitor in some situations.
The content of the invention
In view of the shortcomings of the prior art, the technical problems to be solved by the invention are to propose a kind of realize under heavy duty to micro-
The isolation and control of ripple vibration, the magnetic suspension low frequency vibration damping device of lifting carrying mechanical structure low frequency resistance to shock.
The magnetic suspension low frequency vibration damping device of above mentioned problem is can solve the problem that, its technical scheme includes being installed between upper and lower pedestal
Damper unit group, the damper unit group includes some damper units, except that each damper unit includes metal
The silk rubber sleeve and upper and lower iron core bar in wire rubber sleeve, be respectively screw on upper and lower iron core bar be wound with it is upper and lower logical
Electric coil, the upper end of upper core bar is stretched out at the top of wire rubber sleeve to be connected with the upper load-bearing bearing of correspondence position on top base,
The lower end of lower core bar stretches out wire rubber sleeve bottom and the lower supporting bearing installation of correspondence position on bottom base connects, upper iron
The lower end of core bar is respectively equipped with relative upper and lower magnet with the upper end of lower core bar, and upper core bar or lower core bar are provided with position
Displacement sensor, upper and lower hot-wire coil connect controlling and regulating system by corresponding hot-wire coil lead-out wire respectively, and the displacement passes
Sensor connects controlling and regulating system by sensor lead-out wire.
Preferably, upper and lower magnet is made using NdFeB material.
Institute's displacement sensors preferentially select infrared ray sensor.
A kind of prioritization scheme is：Above, on the basis of the vertical symmetry plane of bottom base, in forward and backward or left and right each symmetric position
Left and right damper unit it is tilting and symmetrical.
Another prioritization scheme is：Above, on the basis of the vertical symmetry plane of bottom base, forward and backward or left and right each symmetric position
On left and right damper unit it is tilting and symmetrical, the damper unit in vertical symmetry plane is vertically arranged.
In above two prioritization scheme, the symmetrically tilting installation of left and right damper unit, by being decomposed to loading force, this
Kind of mounting means be in vertical direction compared with vertical place it is equivalent, horizontal level power because symmetric relation can be with
Cancel out each other, but now greatly reduced along institute's vibratory impulse power loaded on iron core bar direction compared to vertical mode,
Vibration isolation efficiency and service life thus are improved, and adapts to the impulsive force influence on X/Y plane all directions, avoids original
Carry out the defects of vertical mode can only receive vertical vibration impact.
Beneficial effects of the present invention：
1st, magnetic suspension low frequency vibration damping device of the present invention overcomes the defects of traditional rubber sensor is to low frequency control effect difference, borrows
Magneticaction is helped, increases damped coefficient, the good shock-absorbing properties of compound rubber, isolates the transmission of vibration；Meanwhile utilize sensor
The connecting rod displacement signal of receiving judges amplitude size, in control centre's automatic adjusument field coil current value, changes magnet reprimand
Power size, realize vibration isolator damping regulation and control.
2nd, it is the defects of vertical vibration vibration isolation can only be received instant invention overcomes conventional damper, oblique by symmetrical pedestal
It is symmetrically installed, reduces axial vibration impact value；Meanwhile the load excitation to different directions can be converted to edge using symmetric property
Axial thrust load, break through the unidirectional vibration isolation limitation of tradition.
3rd, the present invention is practical, is applicable to the multi-field equipment anti-vibration control of machinery, and anti-vibration effect is preferable.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of damper unit in the present invention.
Fig. 2 is the scheme of installation of damper unit in Fig. 1.
Fig. 3 is each installation site and direction schematic diagram of damper unit group in the present invention.
Figure number identifies：1st, damper unit；2nd, wire rubber sleeve；3rd, upper core bar；4th, lower core bar；5th, upper live wire
Circle；6th, lower hot-wire coil；7th, upper load-bearing bearing；8th, lower supporting bearing；9th, upper magnet；10th, lower magnet；11st, displacement transducer；
12nd, hot-wire coil lead-out wire；13rd, sensor lead-out wire；14th, top base；15th, bottom base.
Embodiment
The technical solution adopted by the present invention is inside wire rubber sleeve 2, utilizes the function between magnetic force and iron core bar
Relation, exciting current size is changed to realize the control to magnetic pole magnetic force, to resistance of shock absorber by controlling and regulating system
Coefficient magnitude carries out feedback regulation, to meet the control requirement to the vibration of various amplitude frequency.
Illustrated embodiment is described further to technical scheme below in conjunction with the accompanying drawings.
Magnetic suspension low frequency vibration damping device of the present invention, including the damper unit group being installed between upper and lower pedestal 14,15, institute
Stating damper unit group includes some damper units 1.
Each damper unit 1 includes wire rubber sleeve 2, be coaxially provided with the wire rubber sleeve 2 upper and lower iron core bar 3,
4, the upper end of upper core bar 3 stretched out by the guide sleeve at the top of wire rubber sleeve 2 and with correspondence position on the bottom of top base 14
The connection installation of upper load-bearing bearing 7, the lower end of lower core bar 4 is stretched out and with by the guide sleeve of the bottom of wire rubber sleeve 2
The connection of lower supporting bearing 8 of the upper correspondence position in the top of pedestal 15 is installed, the phase of the upper and lower iron core bar 3,4 in wire rubber sleeve 2
Opposite end is respectively flat upper and lower magnet 9,10 (being made using NdFeB material), the upper and lower iron core in wire rubber sleeve 2
It is respectively screw on bar 3,4 and is wound with upper and lower hot-wire coil 5,6, upper and lower hot-wire coil 5,6 passes through respective hot-wire coil respectively
Lead-out wire 12 connects controlling and regulating system, and lower core bar 4 is provided with infrared linear movement pick-up 11, and institute's displacement sensors 11 are logical
Cross sensor lead-out wire 13 and connect controlling and regulating system, as shown in Figure 1.
When initial, due to the magnetic after effect of upper and lower magnet 9,10, while 5,6 pre- logical certain value of upper and lower hot-wire coil is reverse
Exciting current so that magnetic pole produces certain repulsion, when vibration is delivered to damper unit 1 from pedestal, if amplitude ratio is larger,
Lower core bar 4 and lower magnet 10 can be driven to produce certain displacement, now, displacement transducer 11 will be caused by lower core bar 4
Shift value by the real-time delivery of sensor lead-out wire 13 to controlling and regulating system, controlling and regulating system can according to amount of displacement come
Change the current value on upper and lower hot-wire coil 5,6, so as to control magnetic force size to carry out the corresponding damped coefficient for adjusting damper unit 1,
The automatic adjusument to different frequency amplitude vibration is realized, realizes the isolation control to microwave.
The mounting means of each damper unit 1 is：
First, each damper unit 1 in damper unit group is vertically arranged between upper and lower pedestal 14,15.
2nd, between the diagonally-installed upper and lower pedestal 14,15 of each damper unit 1 in damper unit group, as shown in Fig. 2 working as
Vibration from top transmission come when, the impact F that makes a concerted effort is broken down into component F1 and F2 along iron core bar direction, reduces axially
Vibratory impulse value, when vibration comes from bottom transmission, same impact makes a concerted effort to be decomposed by oblique iron core bar.
1st, more than, on the basis of the vertical symmetry plane of bottom base 14,15, the left and right damper unit in left and right each symmetric position
1 is tilting and symmetrical.
2nd, more than, on the basis of the vertical symmetry plane of bottom base 14,15, the left and right damper unit in left and right each symmetric position
1 is tilting and symmetrical, and the damper unit 1 in vertical symmetry plane is vertically arranged.
Specifically：
1., row's damper unit 1 (seven) of forward and backward is set in the vertical symmetry plane of upper and lower pedestal 14,15, seven
The damper unit 1 of equi-spaced apart is vertically arranged.
2., the left and right first rows of upper and lower pedestal 14,15 vertical symmetry planes difference forward and backward one row's damper unit 1 is set
(seven), each damper unit 1 in left and right two rows damper unit 1 is corresponding and symmetrical tilting, i.e. seven equi-spaced aparts of left bank
Damper unit 1 is tilting to upper left side, and the damper unit 1 of right seven equi-spaced aparts of row is tilting to upper right side.
3., the left and right second rows of upper and lower pedestal 14,15 vertical symmetry planes difference forward and backward one row's damper unit 1 is set
(seven), each damper unit 1 in left and right two rows damper unit 1 is corresponding and symmetrical tilting, i.e. seven equi-spaced aparts of left bank
Damper unit 1 is tilting to upper right side, and the damper unit 1 of right seven equi-spaced aparts of row is tilting to upper left side.
4., left and right 3rd rows of upper and lower pedestal 14,15 vertical symmetry planes distinguishes forward and backward and sets row's damper unit 1
(five), each damper unit 1 in left and right two rows damper unit 1 is corresponding and symmetrical tilting, i.e. five equi-spaced aparts of left bank
Damper unit 1 is tilting to upper left side, and the damper unit 1 of right five equi-spaced aparts of row is tilting to upper right side, as shown in Figure 3.
Above-mentioned 1, in 2 two schemes, the damper unit 1 in damper unit group is arranged symmetrically according to base shape is oblique,
Can offset by the level of direction vibratory impulse component, so as to tackle multidirectional vibratory impulse, improve the efficiency of damping vibration-isolating.
Claims (5)
1. magnetic suspension low frequency vibration damping device, including the damper unit group being installed between upper and lower pedestal (15,16), the vibration damping
Cell group includes some damper units (1), it is characterised in that：Each damper unit (1) includes wire rubber sleeve (2) and is located at
Upper and lower iron core bar (3,4) in wire rubber sleeve (2), it is respectively screw on upper and lower iron core bar (3,4) and is wound with upper and lower energization
Coil (5,6), the upper end of upper core bar (3) stretch out at the top of wire rubber sleeve (2) with top base (15) correspondence position it is upper
Wire rubber sleeve (2) bottom and bottom base (16) on pair are stretched out in load-bearing bearing (7) installation connection, the lower end of lower core bar (4)
Answer the lower supporting bearing (8) of position that connection is installed, the lower end and the upper end of lower core bar (4) of upper core bar (3) are respectively equipped with phase
To upper and lower magnet (9,10), upper core bar (3) or lower core bar (4) are provided with displacement transducer (11), upper and lower live wire
Enclose (5,6) and controlling and regulating system is connected by corresponding hot-wire coil lead-out wire (12) respectively, institute's displacement sensors (11) are logical
Cross sensor lead-out wire (13) connection controlling and regulating system.
2. magnetic suspension low frequency vibration damping device according to claim 1, it is characterised in that：Upper and lower magnet (9,10) uses neodymium iron
Boron material makes.
3. magnetic suspension low frequency vibration damping device according to claim 1, it is characterised in that：Institute's displacement sensors (11) are infrared
Line sensor.
4. the magnetic suspension low frequency vibration damping device according to any one in claims 1 to 3, it is characterised in that：Above, bottom base
On the basis of the vertical symmetry plane of (14,15), the left and right damper unit (1) in forward and backward or left and right each symmetric position is tilting and right
Claim.
5. the magnetic suspension low frequency vibration damping device according to any one in claims 1 to 3, it is characterised in that：Above, bottom base
On the basis of the vertical symmetry plane of (14,15), the left and right damper unit (1) in forward and backward or left and right each symmetric position is tilting and right
Claim, the damper unit (1) in vertical symmetry plane is vertically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711175584.6A CN107740842A (en) | 2017-11-22 | 2017-11-22 | Magnetic suspension low frequency vibration damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711175584.6A CN107740842A (en) | 2017-11-22 | 2017-11-22 | Magnetic suspension low frequency vibration damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107740842A true CN107740842A (en) | 2018-02-27 |
Family
ID=61239147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711175584.6A Pending CN107740842A (en) | 2017-11-22 | 2017-11-22 | Magnetic suspension low frequency vibration damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107740842A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999907A (en) * | 2018-08-07 | 2018-12-14 | 广东邦达实业有限公司 | A kind of damper |
| CN111029098A (en) * | 2019-12-30 | 2020-04-17 | 江苏环东电气有限公司 | Vibration reduction method of controlled electromagnetic vibration reduction system |
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|---|---|---|---|---|
| GB553793A (en) * | 1941-11-29 | 1943-06-07 | Metalastik Ltd | Improvements relating to resilient mountings for instruments and machines |
| JPH08131480A (en) * | 1994-11-08 | 1996-05-28 | Delta Kogyo Co Ltd | Magnetic damper for vibration proof and on-vehicle vibration proof head using magnetic damper |
| CN101559396A (en) * | 2009-05-15 | 2009-10-21 | 江苏大学 | Triaxial vibration-decreasing/vibration-isolating platform of hammer crusher |
| CN202937713U (en) * | 2012-10-24 | 2013-05-15 | 成都市翻鑫家科技有限公司 | Electromagnetic shock absorber provided with displacement sensors |
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| CN203297449U (en) * | 2013-05-22 | 2013-11-20 | 宁波南方减震器制造有限公司 | Dual coil electromagnetic shock absorber |
| CN105179589A (en) * | 2015-08-05 | 2015-12-23 | 东南大学 | Vibration isolator with adjustable three-dimensional rigidity |
| CN105299114A (en) * | 2015-11-02 | 2016-02-03 | 西安电子科技大学 | Four-freedom-degree parallel-connection oscillation reduction device for crystal oscillator and oscillation reduction method |
| CN105805203A (en) * | 2014-12-31 | 2016-07-27 | 上海微电子装备有限公司 | Vibration damper and vibration damping method |
| CN207437668U (en) * | 2017-11-22 | 2018-06-01 | 桂林电子科技大学 | Magnetic suspension low frequency vibration damping device |
-
2017
- 2017-11-22 CN CN201711175584.6A patent/CN107740842A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB553793A (en) * | 1941-11-29 | 1943-06-07 | Metalastik Ltd | Improvements relating to resilient mountings for instruments and machines |
| JPH08131480A (en) * | 1994-11-08 | 1996-05-28 | Delta Kogyo Co Ltd | Magnetic damper for vibration proof and on-vehicle vibration proof head using magnetic damper |
| CN101559396A (en) * | 2009-05-15 | 2009-10-21 | 江苏大学 | Triaxial vibration-decreasing/vibration-isolating platform of hammer crusher |
| CN103161876A (en) * | 2011-12-14 | 2013-06-19 | 北汽福田汽车股份有限公司 | Suspension |
| CN202937713U (en) * | 2012-10-24 | 2013-05-15 | 成都市翻鑫家科技有限公司 | Electromagnetic shock absorber provided with displacement sensors |
| CN203297449U (en) * | 2013-05-22 | 2013-11-20 | 宁波南方减震器制造有限公司 | Dual coil electromagnetic shock absorber |
| CN105805203A (en) * | 2014-12-31 | 2016-07-27 | 上海微电子装备有限公司 | Vibration damper and vibration damping method |
| CN105179589A (en) * | 2015-08-05 | 2015-12-23 | 东南大学 | Vibration isolator with adjustable three-dimensional rigidity |
| CN105299114A (en) * | 2015-11-02 | 2016-02-03 | 西安电子科技大学 | Four-freedom-degree parallel-connection oscillation reduction device for crystal oscillator and oscillation reduction method |
| CN207437668U (en) * | 2017-11-22 | 2018-06-01 | 桂林电子科技大学 | Magnetic suspension low frequency vibration damping device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999907A (en) * | 2018-08-07 | 2018-12-14 | 广东邦达实业有限公司 | A kind of damper |
| CN111029098A (en) * | 2019-12-30 | 2020-04-17 | 江苏环东电气有限公司 | Vibration reduction method of controlled electromagnetic vibration reduction system |
| CN111029098B (en) * | 2019-12-30 | 2022-05-31 | 江苏环东电气有限公司 | Controlled electromagnetic vibration reduction system and vibration reduction method |
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