CN109268391A - A kind of magnetic suspension stabilized platform multi-coil axial magnetic bearing - Google Patents
A kind of magnetic suspension stabilized platform multi-coil axial magnetic bearing Download PDFInfo
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- CN109268391A CN109268391A CN201811414812.5A CN201811414812A CN109268391A CN 109268391 A CN109268391 A CN 109268391A CN 201811414812 A CN201811414812 A CN 201811414812A CN 109268391 A CN109268391 A CN 109268391A
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- font
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- mountain
- thrust disc
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0459—Details of the magnetic circuit
- F16C32/0468—Details of the magnetic circuit of moving parts of the magnetic circuit, e.g. of the rotor
Abstract
A kind of magnetic suspension stabilized platform multi-coil axial magnetic bearing is made of " mountain " font stator and " U " font rotor, wherein " mountain " font stator is made of three magnetic pole of the stator, wherein intermediate stator magnetic pole is wound with stator bias coil and stator control coil；" U " font rotor is made of three rotor magnetic poles, and wherein the first rotor magnetic pole is wound with the first rotor control coil, and third trochanter magnetic pole is wound with the second rotor control coil；The center line of center roller magnetic pole is overlapped with the center line of intermediate stator magnetic pole, eight groups of " mountain " font stators and " U " font rotor are placed on circumferencial direction altogether, wherein four groups of " mountain " font stators and " U " font rotor are placed in the top of thrust disc, and place along+X ,-X ,+Y, -Y direction；The volume and weight of existing structure magnetic bearing can be greatly reduced in other four groups of " mountain " font stators lower section for being placed in thrust disc corresponding with " U " font rotor, structure of the present invention.
Description
Technical field
The present invention relates to a kind of non-contact magnetically suspension bearing, especially a kind of large bearing capacity fission finite angle multi-coil axis
To magnetic bearing, the contactless support that satellite platform, Airborne Inertial stabilized platform etc. have finite angle can be used as, especially suitable for
The non-contact bearing of magnetic suspension inertially stabilized platform.
Background technique
Common magnetic suspension bearing divides electromagnetism offset and permanent magnet bias to be powered on the hybrid magnetic suspension bearing of magnetic control, the former
Bias magnetic field is generated using bias current, has many advantages, such as that stiffness and damping is adjustable；The latter is generated inclined using permanent magnet substitution electric current
Magnetic field is set, the magnetic field that permanent magnet generates undertakes main bearing capacity, and electromagnetic field provides the adjusting bearing capacity of auxiliary, has low function
The advantages that consumption.Classify according to the direction of bearing capacity, magnetic bearing is divided into radial direction magnetic bearing and axial magnetic bearing.For existing axial direction
Magnetic bearing, patent of invention 200510011272.2 disclose a kind of low power consumption permanent magnet biased axial magnetic bearing structure, utilize second
Air gap decouples electromagnetic circuit and permanent magnetic circuit, and patent of invention 201510585671.3 discloses a kind of asymmetric permanent magnet bias
Axial magnetic bearing, using double-U-shaped stator core, using positive Z-direction with negative Z-direction using Bu Tong magnetomotive asymmetric annular permanent magnet
The different static bearing capacity of axial both direction is generated, but axial magnetic bearing described in both structures is Single Degree of Freedom Magnetic
Bearing only can produce the bearing capacity of axial direction；And patent of invention 200710098748.X discloses a kind of permanent magnet bias
Axial magnetic bearing, patent of invention 200710098749.4 disclose a kind of axial magnetic bearing for magnetic levitation flywheel, these two types of magnetic axises
It holds and axial magnetic bearing is circumferentially divided into along X and Y-direction to four groups of magnetic poles, by the electric current side for controlling every group of magnetic pole coil
To, it can be achieved that the axial translational degree of freedom control of rotor and two radial deflection freedom degrees control.But when applied to carrying
When the occasion of this major diameter large scale large bearing capacity of the inertial platform of 500kg camera load, there are platform diameters to lead to axis greatly
It holds size to be significantly increased, the problem of weight significantly increases.
Summary of the invention
Technology of the invention solves the problems, such as: overcome the deficiencies in the prior art, this kind of limited small for inertially stabilized platform
For the mechanism of corner, a kind of multi-coil axial magnetic bearing split type, that axial translation and radial twisting control can be carried out is provided.
Technical solution of the invention are as follows: a kind of magnetic suspension stabilized platform multi-coil axial magnetic bearing, by " mountain " word
Type stator (1) and " U " font rotor (2) composition, wherein " mountain " font stator is by outer stator magnetic pole, intermediate stator magnetic pole and interior
Side magnetic pole of the stator is constituted, and wherein intermediate stator magnetic pole is wound with stator bias coil (31) and stator control coil (32), stator
The radial direction height of bias coil (31) and the outer stator magnetic pole of " mountain " font stator (1) and inside stator magnetic pole are in diameter
Height on direction is equal；" U " font rotor is made of the first rotor magnetic pole and the second rotor magnetic pole, wherein the first rotor magnetic
Pole is wound with the first rotor control coil (4), and the second rotor magnetic pole is wound with the second rotor control coil (5), " U " font rotor
(2) center line is overlapped with the center line of intermediate stator magnetic pole, be placed with altogether on circumferencial direction eight groups of " mountain " font stators (1) and
" U " font rotor (2), wherein four groups of " mountain " font stators (1) and " U " font rotor (2) are placed in the top of thrust disc, in addition
Four groups of " mountain " font stators (1) and " U " font rotor (2) are placed in the lower section of thrust disc, and four groups above and below thrust disc
" mountain " font stator (1) and " U " font rotor (2) are placed along+X ,-X ,+Y, -Y direction；Four groups of " mountain " font stators (1) and " U "
Axial magnetic air gap (6) is formed between font rotor (2).Stator bias coil (31) is passed through bias current in axial magnetic air gap (6)
Middle formation bias magnetic field, stator control coil (32) are passed through control electric current and realize that the translation along Z-direction of thrust disc controls, and first
Rotor control coil (4) and the second rotor control coil (5) are passed through control electric current and realize thrust disc along the deflection control of X and Y-direction
System.
It is made of above the thrust disc eight groups of " mountain " font stators (1) and " U " font rotor (2), along the circumferential direction
Cloth, wherein four groups of " mountain " font stators (1) and " U " font rotor (2) are placed along+X ,-X ,+Y, -Y direction；Below thrust disc by
Eight groups of " mountain " font stators (1) and " U " font rotor (2) composition, with above thrust disc eight groups of " mountain " font stators (1) and
" U " font rotor (2) is corresponding to be placed, and is formed between " mountain " font stator (1) above thrust disc and " U " font rotor (2)
Axial magnetic air gap is formed between " mountain " font stator (1) and " U " font rotor (2) below axial magnetic air gap (6) and thrust disc
(6) unequal.
It can be also made of eight groups of " mountain " font stators and " U " font rotor above the thrust disc, it is along the circumferential direction uniformly distributed,
Wherein four groups of " mountain " font stators and " U " font rotor are placed along+X ,-X ,+Y, -Y direction；By four groups of " mountain " words below thrust disc
Type stator and " U " font rotor form, " mountain " the font stator placed with four groups above thrust disc along+X ,-X ,+Y, -Y direction
" U " font rotor is corresponding to be placed.
The material of described " mountain " font stator and " U " font rotor is 1J50,1J22 or electrical pure iron.
The material of the thrust disc is the non-magnet materials such as aluminium alloy or titanium alloy.
The principle of above scheme is: the present invention by " mountain " font stator bias coil be passed through electric current formed " mountain " font it is fixed
Bias magnetic field between son and " U " font rotor realizes thrust disc by the current control in " mountain " font stator control coil
Axial translation control；Pass through the first rotor control coil of " U " font rotor and the current control of the second rotor control coil
Realize thrust disc radially X-direction and Y-direction deflection control." mountain " font stator bias coil and control coil of the invention are logical
Electromagnetic circuit after electricity are as follows: intermediate stator magnetic pole, air gap, the middle section of " U " font rotor, " U " word of " mountain " font stator
The magnetic poles (i.e. the first rotor magnetic pole and the second rotor magnetic pole) of the two sides of type rotor, air gap, " mountain " font stator two sides magnetic pole
(i.e. outer stator magnetic pole and inside stator magnetic pole), returns to the intermediate stator magnetic pole of " mountain " font stator, as shown in Figure 3.This hair
Electromagnetic circuit after bright " U " font rotor the first rotor control coil is powered is divided into two parts, first part's magnetic circuit are as follows: " U " word
Type rotor the first rotor magnetic pole, air gap, the corresponding magnetic pole of " mountain " font stator (i.e. inside stator magnetic pole), " mountain " font are fixed
Sub- intermediate stator magnetic pole, air gap, " U " font rotor；Second part magnetic circuit are as follows: " U " font rotor the first rotor magnetic pole, air gap,
The corresponding magnetic pole of " mountain " font stator (i.e. inside stator magnetic pole), the outer stator magnetic pole of " mountain " font stator, air gap,
Second rotor magnetic pole of " U " font rotor, two parts magnetic circuit are as shown in Figure 4.Similarly, " U " font the second rotor of rotor of the invention
Electromagnetic circuit after control coil is powered is divided into two parts, first part's magnetic circuit are as follows: the second rotor magnetic pole of " U " font rotor, gas
Gap, the corresponding magnetic pole of " mountain " font stator (i.e. outer stator magnetic pole), " mountain " font stator intermediate stator magnetic pole, air gap,
" U " font rotor；Second part magnetic circuit are as follows: the second rotor magnetic pole of " U " font rotor, air gap, " mountain " font stator are corresponding to it
Magnetic pole (i.e. outer stator magnetic pole), the inside stator magnetic pole of " mountain " font stator, air gap, " U " font rotor the first rotor
Magnetic pole.It should be noted that when the first rotor control coil is identical as second rotor control coil the number of turns, and " mountain " font stator
Axial gap and " mountain " font stator outer stator magnetic between inside stator magnetic pole and the first rotor magnetic pole of " U " font rotor
When axial gap between pole and second rotor magnetic pole of " U " font rotor is equal, then the first rotor control coil is powered the
Magnetic flux and the second rotor control coil generated at two rotor magnetic poles is passed through the identical electric current in direction equal in magnitude in the first rotor
The magnetic flux generated at magnetic pole is equal in magnitude contrary, therefore the two is cancelled out each other, therefore, when the rotor the first rotor control of " U " font
When coil processed and the second rotor control coil are passed through the identical electric current in direction equal in magnitude simultaneously, magnetic circuit and Fig. 3 be
, then when " mountain " font stator control coil and " U " font rotor the first rotor control coil and the second rotor control coil
It is powered after (size of current equal direction is identical) simultaneously, the magnetic circuit of synthesis is as shown in figure 5, what wherein solid line indicated is " mountain " font
Magnetic circuit figure when stator control coil is powered, what dotted line indicated is " U " font rotor the first rotor control coil and second turn
Sub- control coil is powered the magnetic circuit figure after (size of current equal direction is identical) simultaneously；What Fig. 5 was provided is the first rotor control line
Circle and the second rotor control coil be powered generate magnetic flux and stator control coil be powered generation magnetic flux it is superimposed when situation, it is on the contrary
?.
In application axial magnetic bearing of the present invention, it is usually placed with eight groups of " mountain " font stators altogether in a circumferential direction
(1) and " U " font rotor (2), wherein four groups of " mountain " font stators (1) and " U " font rotor (2) are placed in the upper of thrust disc
Side, in addition four groups of " mountain " font stators (1) and " U " font rotor (2) are placed in the lower section of thrust disc, above and below thrust disc
Four groups of " mountain " font stators (1) and " U " font rotor (2) along+X ,-X ,+Y, -Y direction place, as shown in fig. 6, at four groups
Be passed through bias current in bias coil in " mountain " font stator (1), the electric current " mountain " font stator and " U " font rotor it
Between air gap at form bias magnetic field, " mountain " at this time when thrust disc is generated along the movement in the direction axial direction-z, above thrust disc
The electric current with the bias current same direction is passed through in stator control coil in font stator so that its in " mountain " font stator and
It is magnetic field-enhanced in magnetic air gap between " U " font rotor, while the stator control in " mountain " font stator below thrust disc
The electric current with bias current opposite direction is passed through in coil, so that its magnetism between " mountain " font stator and " U " font rotor
Field weakening in gap, so that the thrust disc direction generation+z moves, and then restores to equilbrium position, vice versa.When pushing away
When power disk is occurred along the yaw motion in the direction+x, " mountain " font stator above thrust disc is placed along the direction+y and is turned with " U " font
Magnetic gap between son becomes smaller, and places the magnetic between " mountain " font stator and " U " font rotor below thrust disc along the direction+y
Gap becomes larger, and places the magnetic gap between " mountain " font stator and " U " font rotor above thrust disc along the direction-y and becomes larger,
It places the magnetic gap between " mountain " font stator and " U " font rotor below thrust disc along the direction-y to become smaller, at this time along+y
It places " U " font rotor below thrust disc and places the in " U " font rotor above thrust disc along the direction-y in direction
One rotor coil and the second rotor coil are passed through electric current, so that " U " font rotor generates suction to " mountain " font stator, make
The restoring force in the direction thrust disc generation-x is obtained, to reach balance, vice versa.
It can be also made of eight groups of " mountain " font stators and " U " font rotor above and below thrust disc of the present invention,
It is along the circumferential direction uniformly distributed, as shown in fig. 7, wherein four groups of " mountain " font stators and " U " font rotor are put along+X ,-X ,+Y, -Y direction
It sets；The deflection of " mountain " font stator and " U " font rotor control thrust disc for wherein placing along+X ,-X ,+Y, -Y direction is free
Degree, that is, thrust disc turn along two deflection freedom degrees of X and Y-direction, remaining four groups of " mountain " font stator and " U " font
Son is to the weight for the load for undertaking thrust disc and being placed on it, i.e. translational degree of freedom of the control thrust disc in Z-direction；For
Further loss of weight may be implemented there are two types of mode, and a kind of mode is eight groups for can making above thrust disc in design
Axial magnetic air gap between " mountain " font stator and " U " font rotor be less than eight groups of " mountain " font stators below thrust disc with
And the axial magnetic air gap between " U " font rotor, it can reduce coil current size when suspension axial carrying at this time.In reality
In application, considering the axial length and load structure of magnetic levitation system, usual thrust disc is upper and lower two, then institute of the present invention
Structure is stated in design, described eight groups of " mountain " font stators are placed on above or below lower thrust disk, are put above lifting force disk
Set the load such as camera.Another way is used above and below thrust disc using asymmetric manner, that is to say, that in thrust disc
Top is formed using eight groups of " mountain " font stators and " U " font rotor, and is uniformly distributed along the circumference, and four groups are used below thrust disc
" mountain " font stator and " U " font rotor form, as shown in figure 9, four groups of " mountain " font stators and " U " font below thrust disc
Rotor is corresponding with edge+X ,-X ,+Y, -Y direction are placed above thrust disc " mountain " font stator and " U " font rotor to be placed.
The advantages of the present invention over the prior art are that: axial magnetic bearing of the present invention has " mountain " font stator
" U " font rotor, and rotor is designed with coil, the design of " mountain " font stator bias coil substantially increases coil
Using space and utilization rate, while the bearing capacity of bearing and the ability of deflection control are improved, in addition, " mountain " font is fixed
Sub- control coil is used to control the axial direction movement of thrust disc, the first rotor control coil of " U " font rotor and second turn
The volume of existing magnetic axis bearing structure can be greatly reduced in X direction with the yaw motion of Y-direction in sub- control coil control thrust disc
And weight.
Detailed description of the invention
Fig. 1 is axial magnetic bearing axial, cross-sectional view of the invention；
Fig. 2 is axial magnetic bearing " mountain " font stator and " U " font rotor structure figure of the invention；
Fig. 3 is the magnetic circuit after axial magnetic bearing of the present invention " mountain " font stator bias coil or the energization of stator control coil
Figure；
Fig. 4 is the magnetic circuit figure after axial magnetic bearing of the present invention " U " font rotor the first rotor control coil is powered；
Fig. 5 is axial magnetic bearing of the present invention " mountain " font stator control coil and " U " font rotor the first rotor control line
Magnetic circuit figure after circle and the energization simultaneously of the second rotor control coil；
Fig. 6 is the axial magnetic bearing structure of symmetrical structure of the invention, wherein there is 4 groups " mountains " above and below thrust disc
Font stator and " U " font rotor.；
Fig. 7 is the axial magnetic bearing structure of symmetrical structure of the invention, wherein there is 8 groups " mountains " above and below thrust disc
Font stator and " U " font rotor；
Fig. 8 is the axial magnetic bearing structure of symmetrical structure of the invention, wherein the thrust placed along+X ,-X ,+Y, -Y direction
Totally 8 groups of " mountain " font stator not coiling stator control coils placed above and below disk；Remaining 8 groups of " U " font rotor not around
It is formed with the first rotor control coil and the second rotor control coil；
Fig. 9 is the axial magnetic bearing structure of unsymmetric structure of the invention, wherein has 8 groups of " mountain " fonts fixed above thrust disc
Son and " U " font rotor, there are 4 groups of " mountain " font stators and " U " font rotor in lower section；
Figure 10 is the axial magnetic bearing structure of unsymmetric structure of the invention, wherein has 8 groups of " mountain " fonts above thrust disc
Stator and " U " font rotor, and " mountain " font stator not coiling stator control coil placed along+X ,-X ,+Y, -Y direction,
4 groups of " U " font rotors of remaininging are not wound with the first rotor control coil and the second rotor control coil；There are 4 groups of " mountain " fonts in lower section
Stator and " U " font rotor are placed along+X ,-X ,+Y, -Y direction, and its " mountain " font stator not coiling stator control coil.
Specific embodiment
As depicted in figs. 1 and 2, a kind of magnetic suspension stabilized platform multi-coil axial magnetic bearing, by " mountain " font stator (1)
" U " font rotor (2) composition, wherein " mountain " font stator is by outer stator magnetic pole, intermediate stator magnetic pole and inside stator magnetic
Pole is constituted, and wherein intermediate stator magnetic pole is wound with stator bias coil (31) and stator control coil (32), stator bias coil
(31) the outer stator magnetic pole and inside stator magnetic pole of radial direction height and " mountain " font stator (1) are in radial directions
Height it is equal；" U " font rotor is made of the first rotor magnetic pole and the second rotor magnetic pole, and wherein the first rotor magnetic pole is wound with
The first rotor control coil (4), the second rotor magnetic pole are wound with the second rotor control coil (5), in " U " font rotor (2)
Heart line is overlapped with the center line of intermediate stator magnetic pole, is placed with eight groups of " mountain " font stators (1) and " U " font on circumferencial direction altogether
Rotor (2), wherein four groups of " mountain " font stators (1) and " U " font rotor (2) are placed in the top of thrust disc, in addition four groups
" mountain " font stator (1) and " U " font rotor (2) are placed in the lower section of thrust disc, four groups " mountains " above and below thrust disc
Font stator (1) and " U " font rotor (2) are placed along+X ,-X ,+Y, -Y direction；Four groups of " mountain " font stators (1) and " U " font
Axial magnetic air gap (6) is formed between rotor (2), as shown in Figure 6；
In specific application, the stator bias coil in four groups of " mountain " font stators (1) above the thrust disc
(31) the stator bias coil (31) in four groups of " mountain " font stators (1) and below thrust disc is passed through certain bias current
(usually 1A~3A), so that bias magnetic field is generated in axial magnetic air gap between " mountain " font stator and " U " font rotor,
When thrust disc is generated along the offset of -Z direction, then the stator control in four groups of " mountain " font stators (1) above thrust disc
Coil (32) is passed through control electric current identical with stator bias coil (31) direction, the magnetic field for generating it at axial magnetic air gap
It is identical as the magnetic direction that stator bias coil (3) generate, and the stator in four groups of " mountain " font stators (1) below thrust disc
Control coil (32) is passed through the control electric current contrary with stator bias coil (31), generates it at axial magnetic air gap
The magnetic direction that magnetic field and stator bias coil (3) generate is on the contrary, therefore entire thrust disc generates the restoring force along +Z direction.When
When thrust disc is occurred around yaw motion along +Y direction, i.e., " mountain " font stator (1) and " U " word for being placed above thrust disc along+X
Axial magnetic between " mountain " font stator (1) and " U " font rotor (2) that edge-X is placed below type rotor (2) and thrust disc
Gap reduces, and above thrust disc below-X " mountain " font stator (1) placed and " U " font rotor (2) and thrust disc
Axial magnetic gap increases between " mountain " font stator (1) and " U " font rotor (2) that+X is placed, at this point, above thrust disc
The first rotor control below+X " U " the font rotor (2) placed and thrust disc in " U " the font rotor (2) that-X is placed
Coil processed and the second rotor control coil are passed through the identical electric current in direction equal in magnitude, place with edge+X above thrust disc
Stator bias coil (31) below " mountain " font stator (1) and thrust disc in " mountain " font stator (1) that-X is placed is logical
The bias current direction entered is identical, the magnetic field for generating it at axial magnetic air gap and " mountain " word placed above thrust disc along+X
Biasing below type stator (1) and thrust disc along-X placement in the stator bias coil (31) of " mountain " font stator (1)
The magnetic direction that electric current generates at axial magnetic air gap is opposite；And thrust disc above along-X place " U " font rotor (2) and
The first rotor control coil (4) and the second rotor control coil below thrust disc in " U " the font rotor (2) that+X is placed
(5) it is passed through the identical electric current in direction equal in magnitude, along-X " mountain " font stator (1) placed and is pushed away with thrust disc top
The bias current that stator bias coil (31) below power disk in " mountain " font stator (1) that+X is placed is passed through is contrary,
Above the magnetic field for generating it at axial magnetic air gap and thrust disc under " mountain " font stator (1) and thrust disc that-X is placed
Side's magnetic direction that the stator bias coil (31) of " mountain " font stator (1) generates along+X placement is identical, at this point, thrust disc
By the torque along -Y direction and then keep balancing.Vice versa.
It can be also made of eight groups of " mountain " font stators and " U " font rotor above and below thrust disc of the present invention,
It is along the circumferential direction uniformly distributed, as shown in fig. 7, wherein four groups above and below thrust disc are placed along+X ,-X ,+Y, -Y direction
The deflection freedom degree of " mountain " font stator and " U " font rotor control thrust disc, that is, thrust disc is along two of X and Y-direction
Freedom degree is deflected, and other four groups of " mountain " font stators above and below thrust disc and " U " font rotor control thrust disc
Axial translational degree of freedom；Four groups of edges+X ,-X ,+Y, -Y direction in order to further decrease bearing weight, above and below thrust disc
The intermediate stator magnetic pole of " mountain " the font stator placed can only be wound with bias coil, and not coiling control coil biases at this time
Coil can occupy the volume of former bias coil and control coil, this is greatly improved translation bearing capacity, at the same remaining four
Group " U " font rotor is not wound with the first rotor control coil and the second rotor control coil, to undertake thrust disc and put
The weight of load on it, i.e. translational degree of freedom of the control thrust disc in Z-direction are set, as shown in Figure 8；In order to further
Loss of weight may be implemented there are two types of mode, and a kind of mode is eight groups of " mountain " fonts above thrust disc can be made fixed in design
Axial magnetic air gap between son and " U " font rotor is less than eight groups of " mountain " font stators and " U " font below thrust disc
Axial magnetic air gap between rotor can reduce coil current size when suspension axial carrying at this time.In practical application, examining
Consider the axial length and load structure of magnetic levitation system, usual thrust disc is upper and lower two, then structure of the present invention exists
When design, described eight groups of " mountain " font stators are placed on above or below lower thrust disk, and camera etc. is placed above lifting force disk
Load.Another way is used above and below thrust disc using asymmetric manner, that is to say, that is used above thrust disc
Eight groups of " mountain " font stators and " U " font rotor form, and are uniformly distributed along the circumference, fixed using four groups of " mountain " fonts below thrust disc
Son and " U " font rotor composition, as shown in figure 9, four groups of " mountain " font stators and " U " font rotor and thrust below thrust disc
" mountain " the font stator placement corresponding with " U " font rotor placed above disk along+X ,-X ,+Y, -Y direction, in order to improve carrying energy
Power and loss of weight, " mountain " font stator not coiling stator control coil that the thrust disc top is placed along+X ,-X ,+Y, -Y direction,
Remaining 4 groups of " U " font rotor is not wound with the first rotor control coil and the second rotor control coil；Simultaneously below thrust disc
4 groups of " mountain " font stators and " U " font rotor are placed along+X ,-X ,+Y, -Y direction, and its " mountain " font stator not coiling stator
Control coil, as shown in Figure 10.
The material of described " mountain " font stator (1) and " U " font rotor (2) is 1J50,1J22 or electrical pure iron.
The material of the thrust disc is aluminium alloy or titanium alloy.
The content that description in the present invention is not described in detail belongs to the prior art well known to professional and technical personnel in the field.
Claims (5)
1. a kind of magnetic suspension stabilized platform multi-coil axial magnetic bearing, it is characterised in that: by " mountain " font stator (1) and " U "
Font rotor (2) composition, wherein " mountain " font stator is by outer stator magnetic pole, intermediate stator magnetic pole and inside stator magnetic pole structure
At wherein intermediate stator magnetic pole is wound with stator bias coil (31) and stator control coil (32), stator bias coil (31)
Radial direction height and " mountain " font stator (1) outer stator magnetic pole and inside stator magnetic pole height in radial directions
It spends equal；" U " font rotor is made of the first rotor magnetic pole and the second rotor magnetic pole, and wherein the first rotor magnetic pole is wound with first
Rotor control coil (4), the second rotor magnetic pole are wound with the second rotor control coil (5), the center line of " U " font rotor (2)
It is overlapped with the center line of intermediate stator magnetic pole, is placed with eight groups of " mountain " font stators (1) and " U " font rotor on circumferencial direction altogether
(2), wherein four groups of " mountain " font stators (1) and " U " font rotor (2) are placed in the top of thrust disc, other four groups of " mountain " words
Type stator (1) and " U " font rotor (2) are placed in the lower section of thrust disc, and four groups of " mountain " fonts above and below thrust disc are fixed
Sub (1) and " U " font rotor (2) are placed along+X ,-X ,+Y, -Y direction；Four groups of " mountain " font stators (1) and " U " font rotor
(2) axial magnetic air gap (6) is formed between；Stator bias coil (31) is passed through bias current and is formed partially in axial magnetic air gap (6)
Magnetic field is set, stator control coil (32) is passed through control electric current and realizes that the translation along Z-direction of thrust disc controls, the first rotor control
Coil (4) and the second rotor control coil (5) are passed through control electric current and realize that thrust disc is controlled along the deflection of X and Y-direction.
2. axial magnetic bearing according to claim 1, it is characterised in that: fixed by eight groups of " mountain " fonts above the thrust disc
Sub (1) and " U " font rotor (2) composition, it is along the circumferential direction uniformly distributed, wherein four groups of " mountain " font stators (1) and " U " font rotor
(2) it is placed along+X ,-X ,+Y, -Y direction；It is made of below thrust disc eight groups of " mountain " font stators (1) and " U " font rotor (2),
With above thrust disc eight groups of " mountain " font stators (1) and " U " font rotor (2) are corresponding places, and " mountain " above thrust disc
" mountain " font stator (1) below axial magnetic air gap (6) and thrust disc is formed between font stator (1) and " U " font rotor (2)
It is unequal that axial magnetic air gap (6) is formed between " U " font rotor (2).
3. axial magnetic bearing according to claim 1, it is characterised in that: fixed by eight groups of " mountain " fonts above the thrust disc
Sub (1) and " U " font rotor (2) composition, it is along the circumferential direction uniformly distributed, wherein four groups of " mountain " font stators (1) and " U " font rotor
(2) it is placed along+X ,-X ,+Y, -Y direction；It is made of below thrust disc four groups of " mountain " font stators (1) and " U " font rotor (2),
It is corresponding with " mountain " font stator (1) and " U " font rotor (2) that four groups of edge+X ,-X ,+Y, -Y directions above thrust disc are placed
It places.
4. axial magnetic bearing according to claim 1, it is characterised in that: described " mountain " the font stator (1) and " U " font
The material of rotor (2) is 1J50,1J22 or electrical pure iron.
5. axial magnetic bearing according to claim 1, it is characterised in that: the material of the thrust disc is aluminium alloy or titanium
Alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811414812.5A CN109268391B (en) | 2018-11-26 | 2018-11-26 | Multi-coil axial magnetic bearing for magnetic suspension stable platform |
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| CN109268391B CN109268391B (en) | 2020-01-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727921A (en) * | 2020-12-23 | 2021-04-30 | 北京航空航天大学 | Super-stable super-static single-shaft rotary table supported by active magnetic suspension bearing |
| CN113323963A (en) * | 2021-04-22 | 2021-08-31 | 东南大学 | Magnetic bearing of stator permanent magnet motor with magnetic pole bypass and bias force adjusting method thereof |
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| EP2955398A1 (en) * | 2014-06-10 | 2015-12-16 | Skf Magnetic Mechatronics | Active magnetic bearing coils rolled in series |
| CN106763184A (en) * | 2017-02-15 | 2017-05-31 | 江苏大学 | A kind of sextupole radial-axial hybrid magnetic bearing |
| CN107448474A (en) * | 2017-07-27 | 2017-12-08 | 江苏大学 | A kind of vehicle-mounted flying wheel battery five degree of freedom hybrid magnetic bearing |
| AU2016311198A1 (en) * | 2015-08-25 | 2018-04-12 | Reinheart Gmbh | Active magnetic bearing |
| CN108050156A (en) * | 2017-11-14 | 2018-05-18 | 江苏大学 | A kind of sextupole hybrid magnetic bearing |
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| EP2955398A1 (en) * | 2014-06-10 | 2015-12-16 | Skf Magnetic Mechatronics | Active magnetic bearing coils rolled in series |
| AU2016311198A1 (en) * | 2015-08-25 | 2018-04-12 | Reinheart Gmbh | Active magnetic bearing |
| CN106763184A (en) * | 2017-02-15 | 2017-05-31 | 江苏大学 | A kind of sextupole radial-axial hybrid magnetic bearing |
| CN107448474A (en) * | 2017-07-27 | 2017-12-08 | 江苏大学 | A kind of vehicle-mounted flying wheel battery five degree of freedom hybrid magnetic bearing |
| CN108050156A (en) * | 2017-11-14 | 2018-05-18 | 江苏大学 | A kind of sextupole hybrid magnetic bearing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112727921A (en) * | 2020-12-23 | 2021-04-30 | 北京航空航天大学 | Super-stable super-static single-shaft rotary table supported by active magnetic suspension bearing |
| CN112727921B (en) * | 2020-12-23 | 2021-09-14 | 北京航空航天大学 | Super-stable super-static single-shaft rotary table supported by active magnetic suspension bearing |
| CN113323963A (en) * | 2021-04-22 | 2021-08-31 | 东南大学 | Magnetic bearing of stator permanent magnet motor with magnetic pole bypass and bias force adjusting method thereof |
| US11536315B2 (en) | 2021-04-22 | 2022-12-27 | Southeast University | Magnetic bearing of stator permanent magnet motor with magnetic pole bypasses and bias force adjusting method thereof |
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| CN109268391B (en) | 2020-01-14 |
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