CN110094420A - Magnetic suspension bearing, motor, compressor and air conditioner - Google Patents
Magnetic suspension bearing, motor, compressor and air conditioner Download PDFInfo
- Publication number
- CN110094420A CN110094420A CN201910505511.1A CN201910505511A CN110094420A CN 110094420 A CN110094420 A CN 110094420A CN 201910505511 A CN201910505511 A CN 201910505511A CN 110094420 A CN110094420 A CN 110094420A
- Authority
- CN
- China
- Prior art keywords
- iron core
- axial
- control
- magnetic suspension
- permanent magnet
- 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.)
- Granted
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 116
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 175
- 238000004804 winding Methods 0.000 claims abstract description 71
- 238000009413 insulation Methods 0.000 claims description 24
- 230000005389 magnetism Effects 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 42
- 238000009434 installation Methods 0.000 description 20
- 230000004907 flux Effects 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 229920000297 Rayon Polymers 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 230000004323 axial length Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000008094 contradictory effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000005426 magnetic field effect Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process 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
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding 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
- 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
-
- 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
- F16C32/0444—Details of devices to control the actuation of the electromagnets
-
- 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
- F16C32/0461—Details of the magnetic circuit of stationary parts of the magnetic circuit
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The application provides a magnetic suspension bearing, a motor, a compressor and an air conditioner. This magnetic suspension bearing includes axial bearing (17), axial bearing (17) are including interior axial iron core (20), outer axial iron core (21), second permanent magnet (22), first control winding (23) and second control winding (24), interior axial iron core (20) and outer axial iron core (21) coaxial setting, second permanent magnet (22) set up in radial clearance (25), second permanent magnet (22) radially magnetize, first control winding (23) coiling is in radial clearance (25), and be located the first end of second permanent magnet (22), second control winding (24) coiling is in radial clearance (25), and be located the second end of second permanent magnet (22). According to the magnetic suspension bearing, the motor, the compressor and the air conditioner, the problem that the magnetic suspension bearing fails due to the fact that the control winding of the two-end axial bearing in one direction breaks down can be solved.
Description
Technical field
The application belongs to technical field of motors, and in particular to a kind of magnetic suspension bearing, motor, compressor and air conditioner.
Background technique
Magnetic suspension bearing have it is contactless, without abrasion, high revolving speed, high-precision, do not need lubrication and sealing etc. it is a series of excellent
Non-defective unit matter is to collect electromagnetism, electronic technology, the new and high technology product for controlling engineering, signal processing, mechanics one.
Magnetic bearing is divided into active, passive type, hybrid three types, and active magnetic bearing rigidity is big, Ke Yijing
Close control, but volume needed for generation case unit capacity and power consumption are larger；Passive magnetic bearing utilizes the suction between magnetic material
Power or repulsion realize that the suspension of rotor, rigidity and damping are all relatively low；Hybrid magnetic bearing provides biasing magnetic with permanent magnet
Field replaces the quiescent biasing magnetic field that electromagnet generates in active magnetic bearing, reduces the number of ampere turns of control winding, reduces bearing body
Product improves bearing load carrying capacity etc.；Hybrid magnetic bearing has the field that volume and power consumption have strict demand irreplaceable
Advantage, magnetic bearing be mainly used in again high speed, ultrahigh speed occasion.Therefore, magnetic suspension system it is integrated, be miniaturized and mention
The Stability and dependability of high control system will be focus on research direction.
In the control of magnetic suspension system axial freedom, typical control methods are intermediate thrust button, both ends axial bearing, benefit
With both ends axial bearing to the suction of thrust button opposite direction, controls thrust button and axially stablize, this control mode exists certain
Drawback, such as axial freedom control winding are single, when the control winding in the one of direction of both ends axial bearing is out of order, then
The bearing of corresponding direction will fail to the suction of thrust button, Yi Yinfa safety failure.
Summary of the invention
Therefore, the application technical problems to be solved are to provide a kind of magnetic suspension bearing, motor, compressor and air-conditioning
Device, the control winding that can be avoided the one of direction of both ends axial bearing break down, and lead to asking for magnetic suspension bearing failure
Topic.
To solve the above-mentioned problems, the application provides a kind of magnetic suspension bearing, including axial bearing, and axial bearing includes interior
Axial iron core, outer axial iron core, the second permanent magnet, the first control winding and the second control winding, interior axial direction iron core and outer axial direction
Iron core coaxial arrangement, the second permanent magnet are arranged in the radial clearance between axial iron core inside and outer axial iron core, the second permanent magnetism
Body radial magnetizing, the first control winding are wound in radial clearance, and are located at the first end of the second permanent magnet, the second control winding
It is wound in radial clearance, and is located at the second end of the second permanent magnet.
Preferably, the second permanent magnet is permanent-magnetic clamp.
Preferably, insulation framework is additionally provided in radial clearance, the first control winding and the second control winding are wound on
In insulation framework.
Preferably, insulation framework and the second permanent magnet cooperate, and interior axial iron core and outer axial iron core are isolated entirely from.
Preferably, it is provided with the first stopper protrusion on the periphery wall of interior axial iron core, is set on the internal perisporium of outer axial direction iron core
It is equipped with the second stopper protrusion, the first end backstop of the second permanent magnet in the first stopper protrusion, stop by the second end of the second permanent magnet
Gear is in the second stopper protrusion.
Preferably, the first stopper protrusion and/or the second stopper protrusion are annular protrusion.
Preferably, axial bearing fixed sleeves are equipped with shell.
Preferably, the first control winding is identical with the energization direction of the second control winding.
Preferably, the respective independent control of the first control winding and the second control winding.
Preferably, magnetic suspension bearing further includes rotor assembly, and the both ends of axial bearing are respectively arranged with thrust button, thrust button
It is fixed on rotor assembly.
Preferably, magnetic suspension bearing further includes transverse bearing, and transverse bearing is set in the inner circumferential side of interior axial iron core.
Preferably, transverse bearing includes stator assembly and rotor assembly that stator module includes stator core, rotor assembly set
It is located at the inner circumferential side of stator module, the first permanent magnetism for generating bias magnetic field is provided in the middle part of the axial direction of stator core
Body, the first permanent magnet radial magnetizing, the internal perisporium first end of stator core are provided with control the first control magnetic pole, the first control magnetic
Pole is moved back and forth for controlling rotor assembly along first straight line, and the internal perisporium second end of stator core is provided with the second control magnetic
Pole, the second control magnetic pole are moved back and forth for controlling rotor assembly along second straight line, and first straight line is located in the first plane, and second
Straight line is located in the second plane, and the first plane and the second plane antarafacial, the first plane and the second plane are perpendicular to stator core
Central axis.
Preferably, control rotor assembly is formed between the first permanent magnet, stator core, the first control magnetic pole and rotor assembly
Along the first control magnetic field that first straight line moves back and forth, the first control magnetic field is located at the first end of the first permanent magnet；First permanent magnetism
Control rotor assembly is moved back and forth along second straight line the is formed between body, stator core, the second control magnetic pole and rotor assembly
Two control magnetic fields, the second control magnetic field are located at the second end of the first permanent magnet.
Preferably, the first control magnetic pole includes that the first iron core of stator core first end end is arranged in and is wound around first
First coil on iron core, two the first iron cores are located at the both ends of the same diameter of stator core, and the first iron core is from stator core
Internal perisporium radial protruded to the central axis of stator core；And/or second control magnetic pole include be arranged in stator core second
Hold the second iron core of end and the second coil for being wound around on the second iron core, two the second iron cores be located at stator core it is same always
The both ends of diameter, the internal perisporium of the second iron core from stator core is radial to be protruded to the central axis of stator core.
Preferably, the first permanent magnet includes four ring segments, and four ring segments are circumferentially uniform along the inner circumferential side of stator core
Distribution, the opposite ring segment of two of them are located in first straight line, other two opposite ring segment is located in second straight line.
Preferably, stator core includes interior iron core and the control pole segment positioned at interior iron core both ends, at least one control magnetic
Pole section and interior iron core split settings.
Preferably, stator module further includes shell, and shell is set in stator core periphery, and the both ends of shell are respectively arranged with
Axial limit structure, stator core is by axial limit structure axial limiting in shell.
Preferably, shell inner sleeve and it is fixed on the inner ring of interior axial iron core.
According to the another aspect of the application, a kind of motor, including magnetic suspension bearing are provided, magnetic suspension bearing is above-mentioned
Magnetic suspension bearing.
According to the another aspect of the application, a kind of compressor, including magnetic suspension bearing are provided, magnetic suspension bearing is above-mentioned
Magnetic suspension bearing.
According to the another aspect of the application, a kind of air conditioner, including magnetic suspension bearing are provided, magnetic suspension bearing is above-mentioned
Magnetic suspension bearing.
Magnetic suspension bearing provided by the present application, including axial bearing, axial bearing include interior axial iron core, outer axial iron
Core, permanent magnet, the first control winding and the second control winding, interior axial direction iron core and outer axial iron core coaxial arrangement, permanent magnet are set
It sets in the radial clearance between axial iron core inside and outer axial iron core, permanent magnet radial magnetizing, the first control winding is wound on
In radial clearance, and it is located at the first end of permanent magnet, the second control winding is wound in radial clearance, and is located at the of permanent magnet
Two ends.The magnetic suspension bearing at work, due to using permanent magnet bias structure, can be provided by permanent magnet and be continued surely
Fixed axial magnetic field effect, the first control winding and the second control winding are only used to control magnetic suspension bearing axial direction both ends
Balancing magnetic force size, even if during the work time since failure causes one of control winding or two control windings to be sent out
Raw failure still can make magnetic suspension bearing effectively work, avoid magnetic suspension bearing by the bias magnetic field that permanent magnet provides
Failure avoids high-speed rotating shaft from uncontrolled security risk occur, improves the Stability and dependability of magnetic suspension system.
Detailed description of the invention
Fig. 1 is the transverse bearing schematic cross-sectional view of the magnetic suspension bearing of the embodiment of the present application；
Fig. 2 is the transverse bearing schematic perspective view of the magnetic suspension bearing of the embodiment of the present application；
Fig. 3 is the transverse bearing decomposition texture schematic diagram of the magnetic suspension bearing of the embodiment of the present application；
Fig. 4 is the axial bearing schematic cross-sectional view of the magnetic suspension bearing of the embodiment of the present application；
Fig. 5 is the axial bearing schematic perspective view of the magnetic suspension bearing of the embodiment of the present application；
Fig. 6 is the axial bearing decomposition texture schematic diagram of the magnetic suspension bearing of the embodiment of the present application
Fig. 7 is the transverse bearing and axial bearing combining structure schematic diagram of the magnetic suspension bearing of the embodiment of the present application；
Fig. 8 is the transverse bearing and axial bearing composite structure perspective view of the magnetic suspension bearing of the embodiment of the present application；
Fig. 9 is the transverse bearing and axial bearing composite structure exploded view of the magnetic suspension bearing of the embodiment of the present application；
Figure 10 is the magnetic circuit figure of the transverse bearing vertical direction motion control of the magnetic suspension bearing of the embodiment of the present application；
Figure 11 is the magnetic circuit figure of the transverse bearing horizontal motion control of the magnetic suspension bearing of the embodiment of the present application；
Figure 12 is the left view structure chart of the transverse bearing of the magnetic suspension bearing of the embodiment of the present application；
Figure 13 is the right view structure chart of the transverse bearing of the magnetic suspension bearing of the embodiment of the present application；
Figure 14 is the magnetic circuit figure of the axial bearing of the magnetic suspension bearing of the embodiment of the present application；
Figure 15 is the transverse bearing of the magnetic suspension bearing of the embodiment of the present application and the magnetic circuit figure of axial bearing composite structure；
Figure 16 is the multiple degrees of freedom suspension structure schematic diagram of the magnetic suspension bearing of the embodiment of the present application.
Appended drawing reference indicates are as follows:
1, transverse bearing；2, stator module；3, rotor assembly；4, stator core；5, the first permanent magnet；6, the first iron core；
7, first coil；8, the second iron core；9, the second coil；10, fixed frame；11, fixing groove；12, interior iron core；13, pole segment is controlled；
14, shell；15, stop lug；16, axial baffle；17, axial bearing；18, thrust button；19, baffle ring；20, interior axial iron
Core；21, outer axial iron core；22, the second permanent magnet；23, the first control winding；24, the second control winding；25, radial clearance；
26, insulation framework；27, the first stopper protrusion；28, the second stopper protrusion；29, shell.
Specific embodiment
In conjunction with referring to shown in Fig. 1 to Fig. 3, Figure 10 to Figure 13, according to an embodiment of the present application, magnetic suspension bearing includes radial
Bearing 1, transverse bearing 1 include stator module 2 and rotor assembly 3, and stator module 2 includes stator core 4, and rotor assembly 3 is arranged
In the inner circumferential side of stator module 2, the first permanent magnetism for generating bias magnetic field is provided in the middle part of the axial direction of stator core 4
Body 5,5 radial magnetizing of the first permanent magnet, the internal perisporium first end of stator core 4 are provided with control the first control magnetic pole, the first control
Magnetic pole processed is moved back and forth for controlling rotor assembly 3 along first straight line, and the internal perisporium second end of stator core 4 is provided with the second control
Magnetic pole processed, the second control magnetic pole are moved back and forth for controlling rotor assembly 3 along second straight line, and first straight line is located at the first plane
Interior, second straight line is located in the second plane, and the first plane and the second plane antarafacial, the first plane and the second plane are perpendicular to stator
The central axis of iron core 4.
The first control magnetic is arranged in the transverse bearing 1 of the magnetic suspension bearing on the stator core 4 of 5 first end of the first permanent magnet
The second control magnetic pole is arranged in pole on the stator core 4 of 5 second end of the first permanent magnet, and the first control magnetic pole is individually used for controlling
Reciprocating motion in first straight line processed, the second control magnetic pole are individually used for the reciprocating motion in control second straight line, first straight line
It is mutually perpendicular to second straight line, the first control magnetic pole of motion control and the second control magnetic this guarantees to(for) rotor assembly 3
Pole is mutually incoherent for the motion control of rotor assembly 3, controls movement of the rotor assembly 3 in first straight line and second straight line
It will not be coupled between magnetic circuit, therefore the suction and in different size of first straight line direction can be provided according to demand
The suction of two rectilinear directions controls convenient for system, and control logic is simpler, improves the stability of magnetic suspension radial direction control system
With reliability.
Preferably, first straight line is horizontally extending, and second straight line extends along the vertical direction.
Specifically, in the present embodiment, the first control magnetic pole is for controlling the position of rotor assembly 3 in the horizontal direction
Move, the second control magnetic pole for controlling the displacement of rotor assembly 3 in the vertical direction, so as to by the first control magnetic pole and
The mutual cooperation of second control magnetic pole, is realized to two freedom of two freedom degrees and vertical direction in the horizontal direction of rotor assembly 3
The suspension of degree controls.Mutual cooperation herein refers to, for the cooperation of 3 direction of motion of rotor assembly control, from magnetic circuit
The magnetic circuit of analysis, the first control magnetic pole and the second control magnetic pole is mutually indepedent and is independent of each other that first controls magnetic pole
The magnetic line of force that the magnetic line of force of generation is also generated with the second control magnetic pole is non-interference, therefore generated magnetic circuit between the two
Between will not couple, can reduce for rotor assembly 3 in the horizontal direction or the control that adjusts of vertical direction displacement be difficult
Degree, mentions high control precision and control efficiency.
In actual control process, by the difference of application environment and the difference for the Bit andits control realized, first
Straight line be not necessarily it is horizontal, second straight line is also not necessarily vertical, it is only necessary to guarantee first straight line and second straight line
It is mutually perpendicular to.
First permanent magnet 5, stator core 4, first, which control, forms control 3 edge of rotor assembly between magnetic pole and rotor assembly 3
The first control magnetic field that first straight line moves back and forth, the first control magnetic field are located at the first end of the first permanent magnet 5；First permanent magnet
5, stator core 4, second controls and forms what control rotor assembly 3 was moved back and forth along second straight line between magnetic pole and rotor assembly 3
Second control magnetic field, the second control magnetic field are located at the second end of the first permanent magnet 5.
In the present embodiment, the first permanent magnet 5, stator core 4, first control magnetic pole and rotor assembly 3 forms the first control
Magnetic field processed, the first permanent magnet 5, stator core 4, second control magnetic pole and rotor assembly 3 forms the second control magnetic field, two controls
It is separated between magnetic field by the first permanent magnet 5, avoids and interfered between two control magnetic fields, simplify control magnetic field
Control program.The pole N of first permanent magnet 5 is located at the radially inner side of the first permanent magnet 5, and the diameter that the pole S is located at the first permanent magnet 5 is outside
The pole N of first permanent magnet 5, can also be arranged in the radial outside of the first permanent magnet 5 by side, and the pole S is located at the diameter of the first permanent magnet 5
Inwardly, it specifically can according to need and be configured.
First control magnetic pole includes that the first iron core 6 of 4 first end end of stator core is arranged in and is wound around the first iron core 6
On first coil 7, two the first iron cores 6 are located at the both ends of the same diameter of stator core 4, and the first iron core 6 is from stator core 4
Internal perisporium radial protruded to the central axis of stator core 4.Preferably, two first coils 7 control independently of each other.Due to two
A control independently of each other of first coil 7, therefore in magnetic suspension bearing work, if one of first coil 7 breaks down,
Since two first coils 7 are mutually contradictory, another first coil 7 still can continue to realize the control in horizontal direction
Function processed is realized to rotor set in which still can be convenient by controlling size of current and direction in another first coil 7
The adjustment that part 3 is displaced in the horizontal direction, fault-tolerance is higher, can more efficiently improve the stability of magnetic suspension bearing with can
By property.
Second control magnetic pole includes that the second iron core 8 of 4 second end end of stator core is arranged in and is wound around the second iron core 8
On the second coil 9, two the second iron cores 8 are located at the both ends of the same diameter of stator core 4, and the second iron core 8 is from stator core 4
Internal perisporium radial protruded to the central axis of stator core 4.Preferably, two the second control independently of each other of coil 9.Due to two
A control independently of each other of second coil 9, therefore in magnetic suspension bearing work, if one of them second coil 9 breaks down,
Since two the second coils 9 are mutually contradictory, another second coil 9 still can continue to realize the control on vertical direction
Function processed is realized to rotor set in which still can be convenient by controlling size of current and direction in another second coil 9
The adjustment that part 3 is displaced in the vertical direction, fault-tolerance is higher, can more efficiently improve the stability of magnetic suspension bearing with can
By property.
Since the first iron core 6 and the second iron core 8 are to be arranged radially, the first coil 7 being wrapped on the first iron core 6
Magnetic pole and magnet radial poles are formed by with the second coil 9 being wrapped on the second iron core 8, by adjusting in first coil 7
Size of current and direction can adjust the closed magnetic circuit magnetic force size of the first end of the first permanent magnet 5, and then realize to rotor set
Displacement in the horizontal direction of part 3 is adjusted.By adjusting on the second coil 9 size of current and direction, first can be adjusted forever
The closed magnetic circuit magnetic force size of the second end of magnet 5, and then realize and the displacement on the vertical direction of rotor assembly 3 is adjusted.
Preferably, the first iron core 6 and the second iron core 8 are integrally formed with stator core 4, can not only reduce the first iron core
Manufacturing procedure, improve shaping efficiency, and enable to the magnetic suspension bearing processed have more good magnetic property.
In the present embodiment, the first permanent magnet 5 includes four ring segments, and four ring segments are along the inner circumferential side of stator core 4
It is circumferentially uniformly distributed, the opposite ring segment of two of them is located in first straight line, other two opposite ring segment is located at second
On straight line.Specifically, four ring segments can be divided into two groups, every group of two ring segments be located at stator core it is same always
The both ends of diameter, wherein first group of two ring segments misplace with two the first iron cores 6 in the circumferential, in the circumferential with two first
Iron core 6 is located at same circumferential position, and second group of two ring segments misplace with two the second iron cores 8 in the circumferential, in the circumferential
It is located at same circumferential position with two the second iron cores 8.So, due to the first straight line and two where two the first iron cores 6
Second straight line where a second iron core 8 is mutually perpendicular to, and therefore, first group of two ring segments and two the second iron cores 8 are in week
It is mutually staggered on direction, magnetic field caused by first group of two ring segments will not be to 9 institute of the second coil on the second iron core 8
The magnetic field of generation causes to interfere, and similarly, magnetic field caused by second group of two ring segments will not be on the first iron core 6
Magnetic field caused by one coil 7 causes to interfere, and can more efficiently avoid coupling between the magnetic circuit at both ends, into one
Step reduces control complexity, mentions high control precision.
Preferably, the first permanent magnet 5 is located at the middle part of stator core 4, the first control magnetic pole and the second control magnetic pole and the
Axial spacing between one permanent magnet 5 is identical, can effectively ensure that the structural stability of the control magnetic pole at both ends.
The first above-mentioned permanent magnet 5 can also use permanent magnetism ring structure.In the present embodiment, above-mentioned ring segment is fan
Shape.
It is fixedly installed fixed frame 10 on the internal perisporium of stator core 4, fixing groove 11 is provided on fixed frame 10, first forever
Magnet 5 is fixed in fixing groove 11.By increasing fixed frame 10, the first permanent magnet 5 can be realized by fixed frame 10
Installation on stator core 4 is fixed, and structure is simpler, is damaged without the structure to the first permanent magnet 5, and can be with
So that the mounting structure of the first permanent magnet 5 is more reliable and more stable.Fixed frame 10 can be either two kinds by interference fit, gluing
The form that mode cooperates is fixed on the internal perisporium of stator core 4, realize it is reliable and stable be fixedly connected, can also be by other
Mode fixed frame 10 is fixed on the internal perisporium of stator core 4.
When the first permanent magnet 5 is fan-shaped, fixing groove 11 is also provided accordingly to sector, when being installed, needs head
First fan-shaped permanent magnet is embedded into fixing groove 11 from the opening of fixing groove 11, and gradually tapering up by fixing groove 11
Opening forms radial limit to permanent magnet, so that permanent magnet will not slide again after sliding into predeterminated position in fixing groove 11.When
After fan-shaped permanent magnet completes installation in fixing groove 11,10 entirety of fixed frame that can will assemble permanent magnet is packed into stator core
4 inner circumferential side, and be fixed, at this point, the pressuring action of inner wall of the outer wall of fan-shaped permanent magnet by stator core 4, fan-shaped
Pressuring action of the side wall of permanent magnet by the side wall of fixing groove 11, to reliablely and stablely limit in fixing groove 11, in turn
Realize reliable and stable installation of the fan-shaped permanent magnet in stator core 4.
Baffle ring 19 is additionally provided in stator core, 10 axial stop of fixed frame is on baffle ring 19.The baffle ring 19 is set
The radially inner side in stator core 4 is set, can be integrally formed with stator core 4, is fixed at after can also individually processing
The inner circumferential side of stator core 4, effect is positioned to axially mounted position of first permanent magnet 5 in stator core 4.?
When carrying out the fixed installation of the first permanent magnet 5, the first permanent magnet 5 can be encased in stator core 4 along installation direction
Side, by 19 backstop of baffle ring, has illustrated the first permanent magnet 5 when the first permanent magnet 5 reaches 19 place axial position of baffle ring
Through being installed in place, the first permanent magnet 5 can be fixed at current axial position, ensure that the axial peace of the first permanent magnet 5
The accuracy and reliability of holding position.By the way that baffle ring 19 is arranged, peace of first permanent magnet 5 in stator core 4 can reduce
Difficulty is filled, positioning accuracy is improved, improves assembly efficiency.Above-mentioned baffle ring 19 or stop block or other have
The structure of backstop action.
Stator core 4 includes interior iron core 12 and the control pole segment 13 positioned at interior 12 both ends of iron core, at least one control magnetic
Pole section 13 and interior 12 split settings of iron core.
When the first iron core 6 and the second split settings between stator core 4 of iron core 8, the first permanent magnetism is being carried out at this time
When the installation of body 5, the first permanent magnet 5 can be mounted in fixing groove 11 first, then by 10 integral installation of fixed frame fixed
It in sub- iron core 4, and is fixed, after the first permanent magnet 5 is completed to be fixedly mounted, the first iron core 6 can be fixedly installed respectively
In the first end of stator core 4, the second end that the second iron core 8 is fixed at stator core 4 before this can be first
First coil 7 is completed in the coiling of coiling and the second coil 9 on the second iron core 8 on the first iron core 6.
However, when the first iron core 6 and the second iron core 8 are integrally formed with stator core 4, due to the first iron core 6 and the
The presence of two iron cores 8 will lead to installation of first permanent magnet 5 on stator core 4 and be interfered, is unable to complete successfully first
Installation of the permanent magnet 5 on stator core 4 is fixed.It just needs again to be designed stator core 4 at this time, by stator core 4
It is divided into multistage according to the installation site of the first iron core 6, the second iron core 8 and the first permanent magnet 5, so, so that it may incite somebody to action
First permanent magnet 5 is fixedly mounted on stator core 4 and then combines other each section of stator core 4, is formed complete
Stator core 4.In the present embodiment, stator core 4 is divided to the control magnetic pole for interior iron core 12 and positioned at interior 12 both ends of iron core
Two control pole segments 13 can be carried out split settings with interior iron core 12 by section 13, can also be only by one of control magnetic
Pole section 13 carries out split settings with interior iron core 12, so, so that it may first by the first permanent magnet 5 from the control of split settings
13 place end of pole segment is encased in interior iron core 12, is finally again combined the control pole segment 13 and interior iron core 12, smoothly
The installation for completing the first permanent magnet 5 is fixed.
Stator module 2 further includes shell 14, and shell 14 is set in 4 periphery of stator core, and the both ends of shell 14 are respectively set
There is axial limit structure, stator core 4 is by axial limit structure axial limiting in shell 14.The shell 14 is not led for example,
Magnetic material is made, and shields so as to be formed from the peripheral side of stator module 2, avoids the magnetic line of force from the peripheral side of stator module 2
Leakage is formed, the job stability and reliability of transverse bearing are improved.Axial limit structure can be to stator core 4 in shell 14
Interior installation, which carries out axial limiting, can more pass through axial direction for the stator core 4 adopted a split structure
Position limiting structure effectively guarantees the fiting effect between each section of stator core 4.
In the present embodiment, axial limit structure includes that the stop lug 15 of 14 first end of shell is arranged in and is arranged in shell
The axial baffle 16 of 14 second end of body, interior iron core 12 and the control equal axial limiting of pole segment 13 are in stop lug 15 and axial baffle
Between 16.
Stop lug 15 and shell 14 are integrally formed, and axial baffle 16 is securely removably connected at the second of shell 14
End.Since stop lug 15 and shell 14 are integrally formed, manufacturing procedure can be reduced, reduces difficulty of processing, improves processing
Efficiency.And axial baffle 16 is securely removably connected at the second end of shell 14, then realizes that stator core 4 exists with can be convenient
Installation, disassembly and replacement in shell 14.
First control magnetic pole and the second control magnetic pole are mutually indepedent.First control magnetic pole and the second control magnetic pole are mutually only
It is vertical, refer to the first control magnetic pole and the second control magnetic pole is independent control, the operation and stopping and second of the first control magnetic pole
Operation and the stopping for controlling magnetic pole are mutually incoherent, therefore, when a control magnetic pole is out of order, will not influence another control
The normal work of magnetic pole ensure that stability and reliability when magnetic suspension bearing work.
First permanent magnet 5 is connect by the method for interference fit or viscose glue with fixed frame 10, the fixing groove 11 of fixed frame 10
Inside there is step to carry out radial support to the first permanent magnet 5, fixed frame 10 is mounted on stator core 4 by way of interference fit again
Middle, there is in stator core 4 baffle ring 19 to carry out axially position to fixed frame 10, each control winding is by way of coiling
It is wound on corresponding iron core, arranges between two control pole segments 13 and an interior iron core 12 according to preset order, then lead to
The mode for crossing high pressure punching press and welding is connected and fixed, and forms radial complete stator core 4, and stator core 4 passes through to shell 14
The mode inner sleeve of heating completes stator module diameter to stator module axially position inside shell 14, then through axial baffle 16
To the fixation with axial direction, the fixed assembling of permanent magnet offset radial bearing parts is realized.
The transverse bearing 1 of the application, fan-shaped permanent magnet radial magnetizing, N in outer S, the fan-shaped permanent magnet of horizontal direction are logical
The the first control magnetic pole and rotor assembly 3 for crossing controlled level displacement form closed circuit, generate the bias magnetic field of horizontal direction, erect
Histogram to fan-shaped permanent magnet by control vertical displacement second control magnetic pole and rotor assembly 3 formed closed circuit, generate
The bias magnetic field of vertical direction, first coil 7 are wrapped on the magnetic pole of the first iron core 6, generate horizontal control magnetic field；Second coil
9 are wrapped on the magnetic pole of the second iron core 8, generate vertical control magnetic field.
Horizontal magnetic circuit and vertical magnetic circuit and Horizontal offset magnetic circuit and vertical biasing magnetic circuit only in magnet radial poles and
Superposition at the air gap that rotor assembly 3 is formed, wherein horizontal magnetic circuit and vertical magnetic circuit are axial on stator core 4
It is distributed and does not interfere with each other, Horizontal offset magnetic circuit and vertical biasing magnetic circuit are respectively distributed on the horizontal plane and vertical plane of radial direction
And it does not interfere with each other.
In conjunction with referring to shown in Figure 10 to Figure 13, by taking the control of horizontal freedom degree direction as an example, the working principle of transverse bearing is such as
Under: the main air gap of radial level is formed between level control magnetic pole and rotor assembly 3, horizontal sector permanent magnet generates Horizontal offset magnetic
, the magnetic flux of bias magnetic field is equal in magnitude in left and right main air gap in radial water plane, and the radial direction of rotor assembly 3 is horizontal
Freedom degree is stablized.When horizontal direction left avertence, which occurs, for shaft moves, bias magnetic field magnetic flux becomes larger in left main air gap, in right main air gap partially
It sets magnetic field flux amount to become smaller, the radial level freedom degree of rotor assembly 3 will be unable to stablize.It can be detected and be turned according to sensor at this time
Shaft position controls size and the direction of electric current to change, and controls what magnetic pole generated by the first control magnetic pole and the second control magnetic pole
Control magnetic field is overlapped mutually, and forms magnetic circuit as shown in fig. 13 that, reduces the magnetic flux in horizontal left main air gap, is increased horizontal
Magnetic flux in right main air gap makes to turn the translation of axial-radial right end and reaches equilbrium position, realizes that the stabilization of shaft horizontal direction is outstanding
It is floating.2 control windings of horizontal direction are mutually contradictory, and one end is out of order, and the other end can continue to realize the control of horizontal direction
Function prevents shaft from uncontrolled state occur.Similarly vertical direction working principle is identical, and vertical direction and horizontal direction
Magnetic circuit will not couple, and can provide different size of horizontal suction and vertical suction according to demand, control, mention convenient for system
The Stability and dependability of high magnetic suspension radial direction control system.
In conjunction with to shown in 6, Figure 14, according to an embodiment of the present application, magnetic suspension bearing includes axial bearing 17 referring to fig. 4,
Axial bearing 17 includes interior axial iron core 20, outer axial iron core 21, the second permanent magnet 22, the first control winding 23 and the second control
Winding 24, interior axial direction iron core 20 and outer axial iron core 21 are coaxially disposed, the second permanent magnet 22 setting axial iron core 20 and outer inside
In radial clearance 25 between axial iron core 21,22 radial magnetizing of the second permanent magnet, the first control winding 23 is wound between radial direction
In gap 25, and it is located at the first end of the second permanent magnet 22, the second control winding 24 is wound in radial clearance 25, and is located at second
The second end of permanent magnet 22.
The axial bearing of the magnetic suspension bearing at work, can be by forever due to using permanent magnet bias structure
Magnet provides continual and steady axial magnetic field effect, and the first control winding and the second control winding are only used to control magnetic suspension bearing
The balancing magnetic force size at axial direction both ends, even if during the work time since failure leads to one of control winding or two
A control winding breaks down, and still magnetic suspension bearing can be made effectively to work by the bias magnetic field that permanent magnet provides,
It avoids magnetic suspension bearing from failing, avoids high-speed rotating shaft from uncontrolled security risk occur, improve the steady of magnetic suspension system
Qualitative and reliability.
Second permanent magnet 22 is permanent-magnetic clamp.Second permanent magnet 22 or fan-shaped permanent magnet or other similar structure
Permanent magnet.
Insulation framework 26 is additionally provided in radial clearance 25, the first control winding 23 and the second control winding 24 are wound on
In insulation framework 26.The effect of insulation framework 26 is, facilitates the winding for carrying out control winding, while can also carry out to magnetic circuit
Design avoids magnetic circuit that short circuit occurs, and guarantees the reasonability of magnetic Circuit Design, improves the magnetic property of axial bearing 17.Insulation framework 26
It is two, is separately positioned on the axial ends of radial clearance 25, the first control winding 23 is wrapped in the insulation framework 26 of first segment
On, the second control winding 24 is wrapped in the insulation framework 26 of second segment, passes through the second permanent magnet between two insulation frameworks 26
22 are spaced apart.
In the present embodiment, insulation framework 26 and the second permanent magnet 22 cooperate, by interior axial iron core 20 and outer axial iron core
21 are isolated entirely from.It, can be by interior axial iron core 20 and outer shaft by cooperating insulation framework 26 and the second permanent magnet 22
It is isolated entirely to iron core 21, so that the control magnetic field that bias magnetic field and control winding that permanent-magnetic clamp generates generate is only logical
The axial air-gap and thrust button 18 for crossing left and right both ends can just form complete closed circuit, so as to guarantee that permanent-magnetic clamp produces
Short circuit will not occur for the control magnetic field that raw bias magnetic field and control winding generates, and can generate enough axial forces, real
Now to the adjusting of the axial position of rotor assembly 3, and then realize the adjusting to the axial position of shaft.Specifically, being located at interior
The insulation framework 26 of 20 first end of axial bearing extends to the first end of the second permanent magnet 22 from the first end of interior axial bearing 20
End face, the insulation framework 26 positioned at interior 20 second end of axial bearing extend to the second permanent magnet from the second end of interior axial bearing 20
22 second end end face, to keep apart interior axial iron core 20 and outer axial iron core 21 on entire axial direction.
It is provided with the first stopper protrusion 27 on the periphery wall of interior axial direction iron core 20, is arranged on the internal perisporium of outer axial direction iron core 21
There is the second stopper protrusion 28, the first end backstop of the second permanent magnet 22 is in the first stopper protrusion 27, and the of the second permanent magnet 22
Two end backstops are in the second stopper protrusion 28.By the way that the first stopper protrusion 27 is arranged on the periphery wall of axial iron core 20 inside,
Second stopper protrusion 28 is set on the internal perisporium of outer axial direction iron core 21, the first stopper protrusion 27 and the second stopper protrusion can be passed through
28 cooperation carries out axially position to the installation site on the second permanent magnet 22 inside axial iron core 20, reduces installation difficulty, together
When can also be realized by the second permanent magnet 22 internally axial iron core 20 and outer axial iron core 21 relative axial position positioning,
In the interior axial iron core 20 of design and outer axial iron core 21, it is only necessary to determine the axial length of the second permanent magnet 22, so that it may close
The axial position of reason design the first stopper protrusion 27 and the second stopper protrusion 28, when being installed, as long as passing through the first backstop
Protrusion 27 or the second stopper protrusion 28 define the axial position of the second permanent magnet 22, as long as then two stopper protrusions are equal
It is installed in place, the relative axial position of interior axial direction iron core 20 and outer axial iron core 21 also determines that this reduces interior axial directions naturally
The assembly difficulty of iron core 20 and outer axial iron core 21, improves assembly efficiency.Simultaneously as two stopper protrusions are located at not
On same axial iron core, therefore the axial iron core integral production where each stopper protrusion and its can be reduced into manufacture difficulty, together
The magnetic property of Shi Tigao axial direction iron core, additionally it is possible to facilitate and realize that the installation of the second permanent magnet 22 is fixed.
In other examples, two stopper protrusions can also be arranged on the same axial iron core, this
In the case of, one of stopper protrusion needs detachably to be arranged between the axial direction iron core, or needs the second permanent magnet
After 22 are mounted on the axial direction iron core, it will be fixedly connected between stopper protrusion and the axial direction iron core.
First stopper protrusion 27 and/or the second stopper protrusion 28 are annular protrusion.Above-mentioned stopper protrusion may be more
A stop block, as long as the axially mounted position of the second permanent magnet 22 can be accurately positioned.
In the present embodiment, the radial height of the first stopper protrusion 27 and the second stopper protrusion 28 is respectively less than annular gap
Therefore thickness will form certain thickness gap between the first stopper protrusion 27 and the internal perisporium of outer axial iron core 21, the
It also will form certain thickness gap between two stopper protrusions 28 and the periphery wall of interior axial iron core 20, be located at interior axial iron core 20
The insulation framework 26 of first end, has the annular flange axially extended towards the second permanent magnet 22, which is stuck in first
It is formed by gap between stopper protrusion 27 and the internal perisporium of outer axial iron core 21, positioned at the exhausted of 20 second end of interior axial iron core
Edge skeleton 26, has the annular flange axially extended towards the second permanent magnet 22, which is stuck in the second stopper protrusion 28
It is formed by gap between the periphery wall of interior axial iron core 20.Between being formed by between stopper protrusion and axial iron core
Gap can facilitate and carry out installation positioning to insulation framework 26, it is also possible to by the first stopper protrusion 27 and outer axial iron core 21
It separates, the second stopper protrusion 28 and interior axial iron core 20 is separated, avoid leading between interior axial iron core 20 and outer axial iron core 21
It crosses stopper protrusion contact and forms short circuit, more efficiently guarantee the bias magnetic field that permanent-magnetic clamp generates and the control that control winding generates
Magnetic field processed, which only passes through the axial air-gap at left and right both ends and thrust button 18, can just form complete closed circuit.
The second end of axial iron core 20 inside also can be set in first stopper protrusion 27, and the second stopper protrusion 28 is then set at this time
Set the first end of axial iron core 21 outside.
17 fixed sleeves of axial bearing are equipped with shell 29.Preferably, which is made of non-magnet material, so as to
Enough peripheral side leakage fields for effectively avoiding axial bearing 17 from outer axial iron core 21, guarantee the magnetic property of axial bearing 17.
Preferably, the first control winding 23 is identical with the energization direction of the second control winding 24.
Preferably, the first control winding 23 and the respective independent control of the second control winding 24.
Magnetic suspension bearing further includes rotor assembly 3, and the both ends of axial bearing 17 are respectively arranged with thrust button 18, thrust button 18
It is fixed on rotor assembly 3.
The permanent-magnetic clamp of axial bearing 17 is embedded in outer axial iron core 21 by way of interference fit or viscose glue, outer axial direction
There is the second stopper protrusion 28 to carry out axial limiting to permanent-magnetic clamp inside iron core 21, interior axial direction iron core 20 passes through interference and the side of viscose glue
Formula is embedded in permanent-magnetic clamp inner ring, and there are the first stopper protrusions 27 and permanent-magnetic clamp to carry out axial limiting for the outer ring of interior axial direction iron core 20,
Support is fixed with axial to the radial direction of permanent-magnetic clamp in inside and outside axial direction iron core.Control winding is wrapped in insulation framework 26, is utilized
Sealant is sealed.The logical interference fit of the insulation framework 26 at left and right both ends or the method for viscose glue are embedded in inside and outside axial iron core
The groove of formation realizes the fixed support of insulation framework 26, forms complete biaxially bearing assembly.Insulation framework 26 with forever
Magnet ring cooperation is completely isolated inside and outside axial iron core, the control magnetic field that the bias magnetic field and control winding that permanent-magnetic clamp generates generate
Complete closed circuit can just only be formed by the axial air-gap and thrust button at left and right both ends.The control at left and right both ends around
Group energization direction is identical, and the control magnetic field of generation is overlapped mutually, and forms a closed circuit, realizes both ends winding control shaft simultaneously
To unilateral direction magnetic force size, avoids high-speed rotating shaft from uncontrolled security risk occur, improve the steady of magnetic suspension system
Qualitative and reliability.Two control windings by being located at axial iron core axial ends cooperate with two thrust buttons 18 to shaft
Axial freedom is controlled, and realizes the integration of two axial bearings, reduces part processing cost, easy for installation, is contracted simultaneously
The occupied space of small magnetic-suspension axial support system, and increase the usage mode of Axial Magnetic Bearing.
Biaxially magnetic bearing technical principle is as shown in figure 14 for permanent magnet bias, and S in the outer N of permanent-magnetic clamp radial magnetizing leads to respectively
It crosses outer axial iron core 21, left and right axial air-gap, left and right thrust button 18, interior axial iron core 20 and constitutes closed circuit, form biasing
Magnetic circuit establishes quiescent biasing magnetic flux in left axial air-gap and right axial air-gap, left and right when shaft is in stable equilibrium position
Biasing magnetic flux in axial air-gap is equal in magnitude, and axial iron core is equal in magnitude to the suction of left thrust disc and right thrust disc, direction
On the contrary, shaft is made to be in stability.Left and right control winding is independently embedded in outer axial iron core 21 and interior axial iron core 20
At the axial pole of composition, the magnetic circuit that both ends control winding generates is overlapped mutually, and generates control magnetic field, at the same control it is left,
Magnetic flux in right air gap.When left control winding or right control winding open circuit, another control winding also can produce control
Effect prevents shaft from uncontrolled state occur, increases the Stability and dependability of magnetic-suspension axial control system.Utilize permanent magnetism
Body forms required bias magnetic field, reduces electromagnetic coil the number of turns, reduces volume and weight needed for generating case unit capacity, thus
Reduce bearing volume.
The axial bearing use it is intermediate for bearing, both ends be thrust button working forms, with diversification, can both ends consolidate
Fixed, centre is mobile, can also be intermediate fixed, the mobile working condition in both ends；It arranges in pairs or groups with transverse bearing in use, axial direction can be carried out
Arrangement can also carry out radial arrangement, realize that Three Degree Of Freedom suspends.Bearing application range, use occasion are more wider.Such as radial row
When cloth, apply to motor vehicle suspension, train suspension etc., the left and right wheel disc of automobile and the left and right guide rail of train are equivalent to thrust disc, vehicle body
It is equivalent to radial-axial integrated system, realizes vehicle body suspension.
In conjunction with referring to shown in Fig. 7 to Fig. 9, Figure 15 and Figure 16, according to an embodiment of the present application, magnetic suspension bearing includes radial
Bearing 1 and axial bearing 17, axial bearing 17 are set in 1 periphery of transverse bearing.
In the present embodiment, by axial bearing 17 and the radial arrangement of transverse bearing 1, it can be realized the integrated of magnetic suspension bearing
Change, reduces axial length and production cost that magnetic suspension system axially utilizes space and shaft, reduce the entirety of magnetic suspension bearing
Volume improves rotor dynamics, convenient for the installation and performance adjustment of bearing.
In the present embodiment, transverse bearing and axial bearing are integrated, can be to the orthogonal two-freedom of rotor radial
And shaft axial freedom is controlled, and the magnetic suspension control of Three Degree Of Freedom is conveniently realized.
Preferably, the both ends of axial bearing 17 are flushed with the both ends of transverse bearing 1, and radial axle can more reasonably be arranged
1 and axial bearing 17 are held, shaft length is further decreased, reduces the axial length and volume of magnetic suspension bearing.
In another embodiment, magnetic suspension bearing includes the transverse bearing 1 of two axially spaced settings, axial axis
Hold 17 peripheries for being set in one of transverse bearing 1.In the present embodiment, the transverse bearing 1 of individualism is arranged in shaft
First end, the integrated morphology of axial bearing 17 and transverse bearing 1 is arranged in the second end of shaft, shaft first end is arranged in
Transverse bearing 1 can radially orthogonal two freedom degrees control to shaft first end, axial bearing 17 and radial axle
Hold 1 integrated morphology be capable of the axial freedom of orthogonal two freedom degrees of radial direction and shaft to shaft second end into
Row control controls the five-degree magnetic suspension of shaft to realize.
Transverse bearing and axial bearing radially integrated structure as shown in fig. 7, integrated system can be to shaft radial direction
Two-freedom is controlled with axial freedom.Transverse bearing component is embedded in shell 14 by way of heated shell 14.
Axial bearing is embedded in shell 29 by way of heating shell 29.14 inner sleeve of shell interior axial direction iron core 20 in axial bearing
Inner ring at, by certain connection type carry out axial restraint (be such as interference fitted or be bolted), realize transverse bearing with
The radial direction of axial bearing is integrated, axially utilizes the axial length of space and shaft to reduce magnetic suspension system and is produced into
This, improves rotor dynamics, convenient for the installation and performance adjustment of bearing.
Since shell 14 is supported using non-magnet material, axial bearing 17 and transverse bearing 1 can be effectively avoided
Magnetic circuit interferes, simplified control program, mentions high control precision and control efficiency, reduces control cost.
According to an embodiment of the present application, motor includes magnetic suspension bearing, which is above-mentioned magnetic suspension bearing.
According to an embodiment of the present application, compressor includes magnetic suspension bearing, which is above-mentioned magnetic suspension shaft
It holds.
According to an embodiment of the present application, air conditioner includes magnetic suspension bearing, which is above-mentioned magnetic suspension shaft
It holds.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The above is only the preferred embodiments of the application, not to limit the application, it is all in spirit herein and
Made any modifications, equivalent replacements, and improvements etc., should be included within the scope of protection of this application within principle.Above only
It is the preferred embodiment of the application, it is noted that for those skilled in the art, do not departing from this Shen
Several improvements and modifications please can also be made, these improvements and modifications also should be regarded as the guarantor of the application under the premise of technical principle
Protect range.
Claims (21)
1. a kind of magnetic suspension bearing, which is characterized in that including axial bearing (17), the axial bearing (17) includes interior axial iron
Core (20), outer axial iron core (21), the second permanent magnet (22), the first control winding (23) and the second control winding (24), it is described
Interior axial direction iron core (20) and the outer axial iron core (21) are coaxially disposed, and second permanent magnet (22) is arranged in the interior axial direction
In radial clearance (25) between iron core (20) and the outer axial iron core (21), the second permanent magnet (22) radial magnetizing,
First control winding (23) is wound in the radial clearance (25), and is located at the first of second permanent magnet (22)
End, second control winding (24) are wound in the radial clearance (25), and are located at the of second permanent magnet (22)
Two ends.
2. magnetic suspension bearing according to claim 1, which is characterized in that second permanent magnet (22) is permanent-magnetic clamp.
3. magnetic suspension bearing according to claim 1, which is characterized in that be additionally provided with insulation in the radial clearance (25)
Skeleton (26), first control winding (23) and second control winding (24) are wound on the insulation framework (26)
On.
4. magnetic suspension bearing according to claim 3, which is characterized in that the insulation framework (26) and second permanent magnetism
The interior axial iron core (20) and the outer axial iron core (21) are isolated entirely from by body (22) cooperation.
5. magnetic suspension bearing according to claim 1, which is characterized in that set on the periphery wall of the interior axial iron core (20)
It is equipped with the first stopper protrusion (27), is provided with the second stopper protrusion (28) on the internal perisporium of the outer axial iron core (21), it is described
The first end backstop of second permanent magnet (22) is on first stopper protrusion (27), the second end of second permanent magnet (22)
Backstop is on second stopper protrusion (28).
6. magnetic suspension bearing according to claim 5, which is characterized in that first stopper protrusion (27) and/or described
Second stopper protrusion (28) is annular protrusion.
7. magnetic suspension bearing according to claim 1, which is characterized in that axial bearing (17) fixed sleeves are equipped with outer
Shell (29).
8. magnetic suspension bearing according to claim 1, which is characterized in that first control winding (23) and described second
The energization direction of control winding (24) is identical.
9. magnetic suspension bearing according to claim 1, which is characterized in that first control winding (23) and described second
Control winding (24) respective independent control.
10. magnetic suspension bearing according to claim 1, which is characterized in that the magnetic suspension bearing further includes rotor assembly
(3), the both ends of the axial bearing (17) are respectively arranged with thrust button (18), and the thrust button (18) is fixed at described turn
On sub-component (3).
11. magnetic suspension bearing according to any one of claim 1 to 10, which is characterized in that the magnetic suspension bearing is also
Including transverse bearing (1), the transverse bearing (1) is set in the inner circumferential side of the interior axial iron core (20).
12. magnetic suspension bearing according to claim 11, which is characterized in that the transverse bearing (1) (1) includes stator pack
Part (2) and rotor assembly (3), the stator module (2) include stator core (4), and it is described fixed that the rotor assembly (3) is set in
The inner circumferential side of sub-component (2) is provided with first for generating bias magnetic field in the middle part of the axial direction of the stator core (4)
Permanent magnet (5), the first permanent magnet (5) radial magnetizing, the internal perisporium first end of the stator core (4) are provided with control
One control magnetic pole, the first control magnetic pole are moved back and forth for controlling the rotor assembly (3) along first straight line, the stator
The internal perisporium second end of iron core (4) is provided with the second control magnetic pole, and the second control magnetic pole is for controlling the rotor assembly
(3) it being moved back and forth along second straight line, the first straight line is located in the first plane, and the second straight line is located in the second plane,
First plane and the second plane antarafacial, first plane and second plane are perpendicular to the stator core
(4) central axis.
13. magnetic suspension bearing according to claim 12, which is characterized in that first permanent magnet (5), the stator iron
It is formed between core (4), the first control magnetic pole and the rotor assembly (3) and controls the rotor assembly (3) along first straight line
The the first control magnetic field moved back and forth, first control magnetic field are located at the first end of first permanent magnet (5)；Described first
Described turn of control is formed between permanent magnet (5), the stator core (4), the second control magnetic pole and the rotor assembly (3)
Sub-component (3) is located at first permanent magnet along the second control magnetic field that second straight line moves back and forth, second control magnetic field
(5) second end.
14. magnetic suspension bearing according to claim 12, which is characterized in that the first control magnetic pole includes being arranged in institute
The first coil (7) stating first iron core (6) of stator core (4) first end end and being wound around on first iron core (6), two
A first iron core (6) is located at the both ends of the same diameter of the stator core (4), and first iron core (6) is from described fixed
The internal perisporium of sub- iron core (4) is radial to be protruded to the central axis of the stator core (4)；And/or the second control magnetic pole packet
Include setting the stator core (4) second end end the second iron core (8) and be wound around on second iron core (8) second
Coil (9), two second iron cores (8) are located at the both ends of the same diameter of the stator core (4), second iron core
(8) it is protruded from the internal perisporium of the stator core (4) is radial to the central axis of the stator core (4).
15. magnetic suspension bearing according to claim 12, which is characterized in that first permanent magnet (5) includes four rings
Shape section, four ring segments are circumferentially uniformly distributed along the inner circumferential side of the stator core (4), the opposite ring of two of them
Shape section is located in first straight line, other two opposite ring segment is located in second straight line.
16. magnetic suspension bearing according to claim 12, which is characterized in that the stator core (4) includes interior iron core
(12) and be located at interior iron core (12) both ends control pole segment (13), at least one described control pole segment (13) with it is described
Interior iron core (12) split settings.
17. magnetic suspension bearing according to claim 16, which is characterized in that the stator module (2) further includes shell
(14), the shell (14) is set in the stator core (4) periphery, and the both ends of the shell (14) are respectively arranged with axial limit
Bit architecture, the stator core (4) is by the axial limit structure axial limiting in the shell (14).
18. magnetic suspension bearing according to claim 17, which is characterized in that shell (14) inner sleeve is simultaneously fixed on described
The inner ring of interior axial direction iron core (20).
19. a kind of motor, including magnetic suspension bearing, which is characterized in that the magnetic suspension bearing is any in claim 1 to 18
Magnetic suspension bearing described in.
20. a kind of compressor, including magnetic suspension bearing, which is characterized in that the magnetic suspension bearing is to appoint in claim 1 to 18
Magnetic suspension bearing described in one.
21. a kind of air conditioner, including magnetic suspension bearing, which is characterized in that the magnetic suspension bearing is to appoint in claim 1 to 18
Magnetic suspension bearing described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910505511.1A CN110094420B (en) | 2019-06-12 | 2019-06-12 | Magnetic suspension bearing, motor, compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910505511.1A CN110094420B (en) | 2019-06-12 | 2019-06-12 | Magnetic suspension bearing, motor, compressor and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110094420A true CN110094420A (en) | 2019-08-06 |
| CN110094420B CN110094420B (en) | 2024-04-05 |
Family
ID=67450838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910505511.1A Active CN110094420B (en) | 2019-06-12 | 2019-06-12 | Magnetic suspension bearing, motor, compressor and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110094420B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075837A (en) * | 2020-01-07 | 2020-04-28 | 浙江工业大学 | Three-support double-group control staggered arrangement magnetic pole non-uniform multi-redundancy magnetic bearing system |
| CN111237337A (en) * | 2020-01-07 | 2020-06-05 | 浙江工业大学 | Three-support double-group control multi-redundancy magnetic bearing system |
| CN114941653A (en) * | 2022-06-10 | 2022-08-26 | 珠海格力电器股份有限公司 | Control method and device for magnetic suspension bearing, magnetic bearing system and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025199A (en) * | 2007-04-02 | 2007-08-29 | 北京航空航天大学 | Permanent magnet polarized internal rotor radial magnetic bearing |
| CN101158374A (en) * | 2007-11-07 | 2008-04-09 | 南京航空航天大学 | Three magnetic pole permanent magnetism bias radial direction magnetic bearing |
| US20140077645A1 (en) * | 2012-09-17 | 2014-03-20 | Ge Energy Power Conversion Technology Ltd. | Device and method for controlling an active magnetic bearing |
| CN104533945A (en) * | 2015-01-05 | 2015-04-22 | 山东大学 | Structure for achieving five-freedom-degree suspension of rotor through axial mixed magnetic bearings |
| CN105673688A (en) * | 2016-02-29 | 2016-06-15 | 江苏大学 | Self-adjustment type five-freedom-degree magnetic bearing |
| CN106402159A (en) * | 2016-12-06 | 2017-02-15 | 中国工程物理研究院材料研究所 | Permanent magnet bias magnetic suspension rotating shaft |
| CN210135170U (en) * | 2019-06-12 | 2020-03-10 | 珠海格力电器股份有限公司 | Magnetic suspension bearing, motor, compressor and air conditioner |
-
2019
- 2019-06-12 CN CN201910505511.1A patent/CN110094420B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025199A (en) * | 2007-04-02 | 2007-08-29 | 北京航空航天大学 | Permanent magnet polarized internal rotor radial magnetic bearing |
| CN101158374A (en) * | 2007-11-07 | 2008-04-09 | 南京航空航天大学 | Three magnetic pole permanent magnetism bias radial direction magnetic bearing |
| US20140077645A1 (en) * | 2012-09-17 | 2014-03-20 | Ge Energy Power Conversion Technology Ltd. | Device and method for controlling an active magnetic bearing |
| CN104533945A (en) * | 2015-01-05 | 2015-04-22 | 山东大学 | Structure for achieving five-freedom-degree suspension of rotor through axial mixed magnetic bearings |
| CN105673688A (en) * | 2016-02-29 | 2016-06-15 | 江苏大学 | Self-adjustment type five-freedom-degree magnetic bearing |
| CN106402159A (en) * | 2016-12-06 | 2017-02-15 | 中国工程物理研究院材料研究所 | Permanent magnet bias magnetic suspension rotating shaft |
| CN210135170U (en) * | 2019-06-12 | 2020-03-10 | 珠海格力电器股份有限公司 | Magnetic suspension bearing, motor, compressor and air conditioner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075837A (en) * | 2020-01-07 | 2020-04-28 | 浙江工业大学 | Three-support double-group control staggered arrangement magnetic pole non-uniform multi-redundancy magnetic bearing system |
| CN111237337A (en) * | 2020-01-07 | 2020-06-05 | 浙江工业大学 | Three-support double-group control multi-redundancy magnetic bearing system |
| CN114941653A (en) * | 2022-06-10 | 2022-08-26 | 珠海格力电器股份有限公司 | Control method and device for magnetic suspension bearing, magnetic bearing system and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110094420B (en) | 2024-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110131314A (en) | Magnetic suspension bearing, motor, compressor and air conditioner | |
| CN110094420A (en) | Magnetic suspension bearing, motor, compressor and air conditioner | |
| EP2479871B1 (en) | Electrical machines | |
| CA2820446C (en) | Electric centrifugal compressor for vehicles | |
| CN107448474B (en) | A kind of vehicle-mounted flying wheel battery five degree of freedom hybrid magnetic bearing | |
| CN106300851B (en) | Air gap control system and method | |
| CN105864292B (en) | A kind of permanent magnet bias Three Degree Of Freedom magnetic bearing | |
| CN106664001A (en) | Electric machine with mechanical field weakening device and failsafe actuation device | |
| EP3683464B1 (en) | Active magnetic bearing apparatus | |
| CN106825627A (en) | A kind of inverter driving ejector half five degree of freedom hybrid magnetic bearing supports electro spindle | |
| CN104350670A (en) | Device having at least one pancake motor rotor and assembly method | |
| CN112615507A (en) | Magnetic suspension bearing assembly, motor and compressor | |
| CN104118579A (en) | Four-freedom-degree single-frame magnetic suspension control torque gyroscope | |
| CN106286590A (en) | Permanent magnet biased axial magnetic suspension bearing and centrifugal compressor | |
| CN103939465B (en) | A kind of Simple Freedom Magnetic Bearing | |
| CN213575191U (en) | Radial hybrid magnetic suspension bearing assembly and motor with same | |
| CN210135170U (en) | Magnetic suspension bearing, motor, compressor and air conditioner | |
| CN112160987A (en) | Magnetic suspension bearing assembly, motor and compressor | |
| CN112145554A (en) | Magnetic suspension bearing assembly and motor with same | |
| CN109194021A (en) | A kind of electro spindle of five-degree-of-freedom alternating sextupole active magnetic bearings bearing | |
| CN109681525A (en) | Magnetic suspension bearing and motor | |
| CN213575192U (en) | Radial hybrid magnetic suspension bearing assembly and compressor with same | |
| CN102075048B (en) | Bearing concept for segment motors | |
| CN213575190U (en) | Magnetic suspension bearing assembly, motor and compressor | |
| CN115013435A (en) | Magnetic suspension bearing and compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |