CN108679084A - A kind of axial passive magnetic bearing of high rigidity high-damping - Google Patents
A kind of axial passive magnetic bearing of high rigidity high-damping Download PDFInfo
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- CN108679084A CN108679084A CN201810581209.XA CN201810581209A CN108679084A CN 108679084 A CN108679084 A CN 108679084A CN 201810581209 A CN201810581209 A CN 201810581209A CN 108679084 A CN108679084 A CN 108679084A
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- permanent magnet
- magnetism
- loop
- isolating loop
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Classifications
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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
- F16C32/0408—Passive magnetic bearings
- F16C32/041—Passive magnetic bearings with permanent magnets on one part attracting the other part
- F16C32/0417—Passive magnetic bearings with permanent magnets on one part attracting the other part for axial load mainly
Abstract
The invention discloses a kind of axial passive magnetic bearings of high rigidity high-damping, are made of stator system and rotor-support-foundation system two parts, and stator system is connected with the pedestal of equipment, and rotor-support-foundation system is connected with the rotating part of equipment.Stator system includes mainly：Installation set, outer magnetic guiding loop, permanent magnet, magnetism-isolating loop, permanent magnet locknut, fixed seat and component locknut；Rotor-support-foundation system includes mainly：Shaft, damping sleeve and paramagnetic ring.By the inside and outside bilateral in fixed seat annular groove, multi-turn permanent magnet is set, improve magnetomotive force, and damping sleeve is fixed between shaft boss, the axial effect supported and damp is realized in same magnetic field, realize axial passive magnetic bearing and damper integration, volume is reduced, quality is reduced；In addition, designed magnetic circuit effectively reduces leakage field and magnetic resistance, magnetic flux utilization rate and air gap magnetic field intensity are improved, and the multi-turn boss and multi-turn damping sleeve of shaft is used in combination, the axial support stiffness and damping force of system greatly improved.
Description
Technical field
The present invention relates to a kind of non-contact magnetically suspension bearing more particularly to a kind of passive magnetic axises of axial direction of high rigidity high-damping
It holds, can be used for the contactless bearing of rotary part in the mechanical equipments such as motor, lathe, magnetic suspension platform.
Background technology
Magnetic bearing can be divided into active magnetic bearing and passive type magnetic bearing.Active magnetic bearing can be powered on by control coil
The size and Orientation of stream changes the size and Orientation for being controlled magnetic flux, variable support stiffness and damping is provided for rotor.However,
Active magnetic bearing needs multiple high-precision sensors and high-quality controller, causes control system volume big and complicated.Passively
Formula magnetic bearing only realizes the suspension bearing of rotor by permanent magnetic field, is not necessarily to additional control system, simple and compact for structure.But it is propped up
It forwards son and is easily generated displacement concussion in the axial direction by external disturbing force, reduce system reliability.Chinese patent
200510011689.9 the passive type axial magnetic suspension bearing with damping action is proposed, by passive damping device and passive magnetic axis
Hold integrated, but support stiffness is relatively low, and axial dimension is larger.Chinese patent 201710260008.5 is proposed to be made with damping
Halbach permanent magnetism passive type axial magnetic suspension bearings improve support stiffness using Halbach permanent magnet arrays, but radial
Size is larger.Above two patent combines passive magnetic bearing and damper together, reduces system bulk weight, but fails to fill
Divide and do not form closure using magnetic flux, designed magnetic circuit caused by permanent magnet, leakage field is more, and support stiffness and damping advantage are not
It can be played.Chinese patent 201110276772.4 proposes the permanent magnetism passive type axial magnetic suspension with passive damping effect
Bearing uses the more double wedge structures of rotor and multi-turn permanent magnet to increase magnetic field, has been formed simultaneously closed circuit, but for damping
Permanent magnet be the unilateral placement in inside, for generate supporting force permanent magnet be the unilateral placement in outside, cause entire circuit magnetic resistance compared with
Greatly, air-gap field intensity is weakened, the realization of high rigidity and high-damping is unfavorable for.Above three patent for bearing magnetic circuit and
Magnetic circuit for damping is separated, and causes volume big, and leakage field is more and circuit magnetic resistance is bigger than normal, and air-gap field intensity is smaller, axial to prop up
It holds rigidity and damping force is relatively low.
Invention content
The object of the present invention is to provide a kind of axial passive magnetic bearings of high rigidity high-damping.
The purpose of the present invention is what is be achieved through the following technical solutions：
The axial passive magnetic bearing of the high rigidity high-damping of the present invention, is mainly made of stator system and rotor-support-foundation system, fixed
Subsystem includes mainly：Outer installation set, outer magnetic guiding loop, outside upper permanent magnet, outer lower permanent magnet, outer middle permanent magnet, outside upper magnetism-isolating loop,
Outside lower magnetism-isolating loop, outer permanent magnet locknut, fixed seat, outer component locknut, interior installation set, interior magnetic guiding loop, interior upper permanent magnet, it is interior under forever
Magnet, interior middle permanent magnet, interior upper magnetism-isolating loop, interior lower magnetism-isolating loop, interior permanent magnet locknut, inner assembly locknut；Rotor-support-foundation system mainly wraps
It includes：It is shaft, outer lower damping sleeve, outer middle paramagnetic ring, outside upper damping sleeve, outside upper paramagnetic ring, interior lower damping sleeve, interior middle magnetic guiding loop, interior
Upper damping sleeve, interior upper paramagnetic ring；Outer installation set is located at outer magnetic guiding loop, outside upper permanent magnet, outer lower permanent magnet, outer middle permanent magnet, outer
The radial outside of upper magnetism-isolating loop and outer lower magnetism-isolating loop, outer magnetic guiding loop are located at the radially inner side of outer installation set, outside upper permanent magnet and outer
Lower permanent magnet is located at outer magnetic guiding loop radially inner side upper end and radially inner side lower end, and outer middle permanent magnet is located at outer magnetic guiding loop radial direction
Medial center position, outside upper magnetism-isolating loop and outer lower magnetism-isolating loop are located at upper axial end and the lower axial end position of outer middle permanent magnet
It sets, outer magnetic guiding loop, outside upper permanent magnet, outer lower permanent magnet, outer middle permanent magnet, outside upper magnetism-isolating loop and outer lower magnetism-isolating loop pass through outer permanent magnetism
Screw-thread fit between body locknut and outer installation set is fixedly mounted in outer installation set, outer installation set, outer magnetic guiding loop, outside upper permanent magnetism
Body, outer lower permanent magnet, outer middle permanent magnet, outside upper magnetism-isolating loop, outer lower magnetism-isolating loop and outer permanent magnet locknut are located at fixed seat annular groove
Outer wall radially inner side, and be fixedly mounted in fixed seat by the screw-thread fit between outer component locknut and fixed seat, interior installation
Radial direction of the set positioned at interior magnetic guiding loop, interior upper permanent magnet, interior lower permanent magnet, interior middle permanent magnet, interior upper magnetism-isolating loop and interior lower magnetism-isolating loop
Inside, interior magnetic guiding loop are located at the radial outside of interior installation set, and interior upper permanent magnet and interior lower permanent magnet are located at interior magnetic guiding loop
Radial outside upper end and radial outside lower end position, interior middle permanent magnet are located at the radial outside center of interior magnetic guiding loop, it is interior on
Magnetism-isolating loop and interior lower magnetism-isolating loop are located at upper axial end and the lower axial end position of interior middle permanent magnet, magnetic guiding loop, interior upper permanent magnetism
Body, interior lower permanent magnet, interior middle permanent magnet, interior upper magnetism-isolating loop and interior lower magnetism-isolating loop pass through between interior permanent magnet locknut and interior installation set
Screw-thread fit be fixedly mounted in interior installation set, interior installation set, interior magnetic guiding loop, interior upper permanent magnet, interior lower permanent magnet, it is interior in forever
Magnet, interior upper magnetism-isolating loop, interior lower magnetism-isolating loop, interior permanent magnet locknut are located at fixed seat annular groove inner wall radial outside, and by interior
Screw-thread fit between component locknut and fixed seat is fixedly mounted in fixed seat, shaft be located at outer installation set, outside upper permanent magnet,
The diameter of lower permanent magnet, outer middle permanent magnet, outside upper magnetism-isolating loop, outer lower magnetism-isolating loop, outer permanent magnet locknut and outer component locknut is inside outside
Side, outer lower damping sleeve are located at the radial outside of shaft, and outer middle paramagnetic ring is located at the upper axial end of outer lower damping sleeve, outside upper damping sleeve
Positioned at the upper axial end of outer middle paramagnetic ring, outside upper paramagnetic ring is located at the upper axial end of outside upper damping sleeve, and by between shaft
Screw-thread fit be fixedly mounted in shaft, interior lower damping sleeve is located at the radially inner side of shaft, and interior middle magnetic guiding loop is located at interior lower resistance
The upper axial end of Buddhist nun's set, interior upper damping sleeve are located at the upper axial end of interior middle magnetic guiding loop, and interior upper paramagnetic ring is located at interior upper damping sleeve
Upper axial end, and be fixedly mounted in shaft by the screw-thread fit between shaft.It is outside upper permanent magnet, outer lower permanent magnet, outer
Middle permanent magnet, outside upper magnetism-isolating loop, outer lower magnetism-isolating loop, outer permanent magnet locknut, fixed seat and outer component locknut radially inner side with it is interior
Upper permanent magnet, interior lower permanent magnet, interior middle permanent magnet, interior upper magnetism-isolating loop, interior lower magnetism-isolating loop, interior permanent magnet locknut and inner assembly locknut
Radial outside between form air gap.
As seen from the above technical solution provided by the invention, the axis of high rigidity high-damping provided in an embodiment of the present invention
To passive magnetic bearing, multi-turn permanent magnet scheme is arranged using inside and outside bilateral, and by shaft double wedge and damping be placed on it is same
In magnetic field, small and light weight reduces circuit leakage field and magnetic resistance, and the double wedge and damping sleeve in shaft are inside and outside multi-turn cloth
It sets, further increases axial support stiffness and damping force.
Description of the drawings
Fig. 1 is the radial X of the axial passive magnetic bearing of high rigidity high-damping provided in an embodiment of the present invention to sectional view；
Fig. 2 is the radial Y-direction sectional view of the axial passive magnetic bearing of the high rigidity high-damping of the embodiment of the present invention；
Fig. 3 is the sectional view of the stator system of the embodiment of the present invention；
Fig. 4 is the sectional view of the rotor-support-foundation system of the embodiment of the present invention；
Fig. 5 is the outer installation set of the embodiment of the present invention, outer magnetic guiding loop, outside upper permanent magnet, outer lower permanent magnet, outer middle permanent magnetism
The assemble cross-section of body, outside upper magnetism-isolating loop, outer lower magnetism-isolating loop and outer permanent magnet locknut composition；
Fig. 6 is the interior installation set of the embodiment of the present invention, interior magnetic guiding loop, interior upper permanent magnet, interior lower permanent magnet, interior middle permanent magnetism
The assemble cross-section of body, interior upper magnetism-isolating loop, interior lower magnetism-isolating loop and interior permanent magnet locknut composition.
Specific implementation mode
The embodiment of the present invention will be described in further detail below.What is be not described in detail in the embodiment of the present invention is interior
Appearance belongs to the prior art well known to professional and technical personnel in the field.
The axial passive magnetic bearing of the high rigidity high-damping of the present invention, preferable specific implementation mode are：
It is mainly made of stator system and rotor-support-foundation system, stator system includes mainly：It is outer installation set, outer magnetic guiding loop, outside upper
Permanent magnet, outer lower permanent magnet, outer middle permanent magnet, outside upper magnetism-isolating loop, outer lower magnetism-isolating loop, outer permanent magnet locknut, fixed seat, outer component
Locknut, interior installation set, interior magnetic guiding loop, interior upper permanent magnet, interior lower permanent magnet, interior middle permanent magnet, interior upper magnetism-isolating loop, it is interior under every magnetic
Ring, interior permanent magnet locknut, inner assembly locknut；Rotor-support-foundation system includes mainly：Shaft, outer lower damping sleeve, outer middle paramagnetic ring, outside upper resistance
Buddhist nun's set, outside upper paramagnetic ring, interior lower damping sleeve, interior middle magnetic guiding loop, interior upper damping sleeve, interior upper paramagnetic ring；Outer installation set is located to be led outside
The radial outside of magnet ring, outside upper permanent magnet, outer lower permanent magnet, outer middle permanent magnet, outside upper magnetism-isolating loop and outer lower magnetism-isolating loop, outer magnetic conduction
Ring is located at the radially inner side of outer installation set, outside upper permanent magnet and outer lower permanent magnet be located at outer magnetic guiding loop radially inner side upper end and
Radially inner side lower end, outer middle permanent magnet are located at outer magnetic guiding loop radially inner side center, outside upper magnetism-isolating loop and outer lower magnetism-isolating loop point
Not Wei Yu outer middle permanent magnet upper axial end and lower axial end position, outer magnetic guiding loop, outside upper permanent magnet, outer lower permanent magnet, it is outer in
Permanent magnet, outside upper magnetism-isolating loop and outer lower magnetism-isolating loop are fixedly mounted by the screw-thread fit between outer permanent magnet locknut and outer installation set
It is outer installation set, outer magnetic guiding loop, outside upper permanent magnet, outer lower permanent magnet, outer middle permanent magnet, outside upper magnetism-isolating loop, outer in outer installation set
Lower magnetism-isolating loop and outer permanent magnet locknut are located at fixed seat annular groove outer wall radially inner side, and by outer component locknut and fixed seat it
Between screw-thread fit be fixedly mounted in fixed seat, interior installation set is located at interior magnetic guiding loop, interior upper permanent magnet, interior lower permanent magnet, interior
The radially inner side of middle permanent magnet, interior upper magnetism-isolating loop and interior lower magnetism-isolating loop, interior magnetic guiding loop are located at the radial outside of interior installation set, it is interior on
Permanent magnet and interior lower permanent magnet are located at radial outside upper end and the radial outside lower end position of interior magnetic guiding loop, interior middle permanent magnet
Positioned at the radial outside center of interior magnetic guiding loop, interior upper magnetism-isolating loop and interior lower magnetism-isolating loop are located at the axial direction of interior middle permanent magnet
Upper end and lower axial end position, magnetic guiding loop, interior upper permanent magnet, interior lower permanent magnet, interior middle permanent magnet, interior upper magnetism-isolating loop and it is interior under every
Magnet ring is fixedly mounted by screw-thread fit between interior permanent magnet locknut and interior installation set in interior installation set, interior installation set, interior
Magnetic guiding loop, interior upper permanent magnet, interior lower permanent magnet, interior middle permanent magnet, interior upper magnetism-isolating loop, interior lower magnetism-isolating loop, interior permanent magnet locknut position
In fixed seat annular groove inner wall radial outside, and it is fixedly mounted on by the screw-thread fit between inner assembly locknut and fixed seat
In reservation, shaft be located at outer installation set, outside upper permanent magnet, outer lower permanent magnet, outer middle permanent magnet, outside upper magnetism-isolating loop, it is outer under every magnetic
The radially inner side of ring, outer permanent magnet locknut and outer component locknut, outer lower damping sleeve are located at the radial outside of shaft, outer middle paramagnetic ring
Positioned at the upper axial end of outer lower damping sleeve, outside upper damping sleeve is located at the upper axial end of outer middle paramagnetic ring, and outside upper paramagnetic ring is located at outer
The upper axial end of upper damping sleeve, and be fixedly mounted in shaft by the screw-thread fit between shaft, interior lower damping sleeve is located at
The radially inner side of shaft, interior middle magnetic guiding loop are located at the upper axial end of interior lower damping sleeve, and interior upper damping sleeve is located at interior middle magnetic guiding loop
Upper axial end, interior upper paramagnetic ring is located at the upper axial end of interior upper damping sleeve, and fixes peace by the screw-thread fit between shaft
In shaft.Outside upper permanent magnet, outer lower permanent magnet, outer middle permanent magnet, outside upper magnetism-isolating loop, outer lower magnetism-isolating loop, outer permanent magnet lock
The radially inner side of female, fixed seat and outer component locknut and interior upper permanent magnet, interior lower permanent magnet, interior middle permanent magnet, interior upper magnetism-isolating loop,
Air gap is formed between interior lower magnetism-isolating loop, interior permanent magnet locknut and the radial outside of inner assembly locknut.
The outside upper permanent magnet, outside upper paramagnetic ring, interior upper paramagnetic ring and interior upper permanent magnet height are equal and be aligned, it is outside upper every
Magnet ring, outside upper damping sleeve, the height of interior upper damping sleeve and interior upper magnetism-isolating loop are equal and be aligned, outer middle permanent magnet, outer middle paramagnetic ring,
Interior middle magnetic guiding loop and interior middle permanent magnet etc. height it is equal and be aligned, outer lower magnetism-isolating loop, outer lower damping sleeve, interior lower damping sleeve and it is interior under
Magnetism-isolating loop height is equal and is aligned, and outer lower permanent magnet, interior lower permanent magnet and shaft lower end are highly equal and are aligned.It is described outer to lead
Magnet ring, interior magnetic guiding loop, shaft, outer middle paramagnetic ring, outside upper paramagnetic ring, interior middle magnetic guiding loop and interior upper paramagnetic ring are that magnetic property is good
Good material, specially 1J50 or 1J22 materials are made.The outer installation set, outside upper magnetism-isolating loop, outer lower magnetism-isolating loop, outer permanent magnetism
Body locknut, fixed seat, outer component locknut, interior installation set, interior upper magnetism-isolating loop, interior lower magnetism-isolating loop, interior permanent magnet locknut and inner assembly
Locknut is the preferable duralumin, hard alumin ium alloy 2A12 of heat conductivility or extra super duralumin alloy 7A09 bar materials.The outside upper permanent magnet,
Lower permanent magnet, outer middle permanent magnet, interior upper permanent magnet, interior lower permanent magnet and interior middle permanent magnet are that Nd Fe B alloys or shirt cobalt close outside
Golden hard magnetic material, and be radial magnetizing, magnetizing direction is followed successively by：N in N, outer S in S, outer S in N, outer N in N, outer S in outer S,
N in S, outer S in S, outer N in N, outer N in S, outer S in S, outer N in S or outer N in outer N.The outer lower damping sleeve, outside upper damping
Set, interior lower damping sleeve and interior upper damping sleeve are made of the material that electric conductivity is good but magnetic property is poor, specially aluminium or
Copper.
The principle of said program is：
The magnetic field generated using multi-turn permanent magnet is interacted with shaft boss, is provided axial rigidity, is existed using damping sleeve
Movement generates damping force inhibition shaft vibration in magnetic field.When rotor-support-foundation system is generated axial displacement by external disturbance, permanent magnet
The axial force opposite with external disturbance force direction is generated between the double wedge in shaft so that rotor-support-foundation system negative direction displacement is protected
Rotor-support-foundation system is held axially to stablize.When rotor-support-foundation system axial vibration, damping sleeve is generated damping current by the magnetic flux changed,
Vibration of rotor system is prevented, rotor-support-foundation system is made to be restored to stable state.The present invention upper permanent magnetic circuit be：Upper magnetic flux from it is outside upper forever
The poles N of magnet are set out, and pass through the outside upper paramagnetic ring of air gap, shaft, interior upper paramagnetic ring and air gap successively, reach the S of interior upper permanent magnet
Pole is flowed out from the poles N of interior upper permanent magnet, and the poles S of interior middle permanent magnet are reached by interior magnetic guiding loop, are flowed from the poles N of interior middle permanent magnet
Go out, pass through air gap, interior middle magnetic guiding loop, shaft, outer middle paramagnetic ring and air gap successively, reach it is outer in permanent magnet the poles S, from outer forever
The poles N of magnet are flowed out, and outside upper permanent magnet is looped back to by outer magnetic conduction；Lower permanent magnetic circuit is：Lower magnetic flux is from the poles N of outer lower permanent magnet
It sets out, passes through air gap, shaft and air gap successively, reach the poles S of interior lower permanent magnet, flowed out from the poles N of interior lower permanent magnet, by interior
Magnetic guiding loop reach in permanent magnet the poles S, from the poles N of interior middle permanent magnet, successively pass through air gap, interior middle magnetic guiding loop, shaft,
Paramagnetic ring and air gap in outer reach the poles S of outer middle permanent magnet, from the poles N of outer middle permanent magnet, are looped back to by outer magnetic conduction outer
The poles S of lower permanent magnet.
The advantages of the present invention over the prior art are that：
Inside and outside bilateral arranges permanent magnet and magnetic flux is made to form closed circuit, increases effectively circuit magnetomotive force, reduces simultaneously
Leakage field, improves the utilization rate of magnetic flux；In addition, damping sleeve is located at the paramagnetic ring in shaft in identical magnetic field so that use
In the magnetic flux axially supported and for generating the magnetic flux damped integration, volume and quality are substantially reduced, compact-sized, shaft
On inside and outside multi-turn boss increase supporting force, inside and outside multi-turn damping sleeve increases damping force.
Specific embodiment：
As shown in Figure 1, 2, a kind of axial passive magnetic bearing of high rigidity high-damping, mainly by stator system and rotor-support-foundation system
Composition, stator system include mainly：Outer installation set 1, outer magnetic guiding loop 2, outside upper permanent magnet 3A, outer lower permanent magnet 3B, outer middle permanent magnetism
It is body 4, outside upper magnetism-isolating loop 5A, outer lower magnetism-isolating loop 5B, outer permanent magnet locknut 6, fixed seat 7, outer component locknut 8, interior installation set 9, interior
Magnetic guiding loop 10, interior upper permanent magnet 11A, interior lower permanent magnet 11B, interior middle permanent magnet 12, interior upper magnetism-isolating loop 13A, interior lower magnetism-isolating loop
13B, interior permanent magnet locknut 14, inner assembly locknut 15；Rotor-support-foundation system includes mainly：Shaft 16, outer lower damping sleeve 17, outer middle paramagnetic
It is ring 18, outside upper damping sleeve 19, outside upper paramagnetic ring 20, interior lower damping sleeve 21, interior middle magnetic guiding loop 22, interior upper damping sleeve 23, interior suitable
Magnet ring 24；Outer installation set 1 is located at outer magnetic guiding loop 2, outside upper permanent magnet 3A, outer lower permanent magnet 3B, outer middle permanent magnet 4, outside upper every magnetic
The radial outside of ring 5A and outer lower magnetism-isolating loop 5B, outer magnetic guiding loop 2 are located at the radially inner side of outer installation set 1, outside upper permanent magnet 3A and
Lower permanent magnet 3B is located at 2 radially inner side upper end of outer magnetic guiding loop and radially inner side lower end outside, and outer middle permanent magnet 4 is located at outer magnetic conduction
2 radially inner side center of ring, outside upper magnetism-isolating loop 5A and outer lower magnetism-isolating loop 5B be located at outer middle permanent magnet 4 upper axial end and
Lower axial end position, outer magnetic guiding loop 2, outside upper permanent magnet 3A, outer lower permanent magnet 3B, outer middle permanent magnet 4, outside upper magnetism-isolating loop 5A and outer
Lower magnetism-isolating loop 5B is fixedly mounted by the screw-thread fit between outer permanent magnet locknut 6 and outer installation set 1 in outer installation set 1, outside
Installation set 1, outer magnetic guiding loop 2, outside upper permanent magnet 3A, outer lower permanent magnet 3B, outer middle permanent magnet 4, outside upper magnetism-isolating loop 5A, it is outer under every magnetic
Ring 5B and outer permanent magnet locknut 6 are located at 7 annular groove outer wall radially inner side of fixed seat, and by outer component locknut 8 and fixed seat 7 it
Between screw-thread fit be fixedly mounted in fixed seat 7, interior installation set 9 be located at interior magnetic guiding loop 10, interior upper permanent magnet 11A, it is interior under forever
The radially inner side of magnet 11B, interior middle permanent magnet 12, interior upper magnetism-isolating loop 13A and interior lower magnetism-isolating loop 13B, interior magnetic guiding loop 10 are located at interior
The radial outside of installation set 9, interior upper permanent magnet 11A and interior lower permanent magnet 11B are located on the radial outside of interior magnetic guiding loop 10
End and radial outside lower end position, interior middle permanent magnet 12 are located at the radial outside center of interior magnetic guiding loop 10, interior upper magnetism-isolating loop
13A and interior lower magnetism-isolating loop 13B is located at upper axial end and the lower axial end position of interior middle permanent magnet 12, magnetic guiding loop 10, it is interior on
Permanent magnet 11A, interior lower permanent magnet 11B, interior middle permanent magnet 12, interior upper magnetism-isolating loop 13A and interior lower magnetism-isolating loop 13B pass through interior permanent magnet
Screw-thread fit between locknut 14 and interior installation set 9 is fixedly mounted in interior installation set 9, interior installation set 9, interior magnetic guiding loop 10, interior
Upper permanent magnet 11A, interior lower permanent magnet 11B, interior middle permanent magnet 12, interior upper magnetism-isolating loop 13A, interior lower magnetism-isolating loop 13B, interior permanent magnet lock
Mother 14 is located at 7 annular groove inner wall radial outside of fixed seat, and solid by the screw-thread fit between inner assembly locknut 15 and fixed seat 7
Dingan County in the fixed seat 7, shaft 16 be located at outer installation set 1, outside upper permanent magnet 3A, outer lower permanent magnet 3B, outer middle permanent magnet 4,
The radially inner side of outside upper magnetism-isolating loop 5A, outer lower magnetism-isolating loop 5B, outer permanent magnet locknut 6 and outer component locknut 8, outer lower damping sleeve 17
In the radial outside of shaft 16, outer middle paramagnetic ring 18 is located at the upper axial end of outer lower damping sleeve 17, and outside upper damping sleeve 19 is located at outer
The upper axial end of middle paramagnetic ring 18, outside upper paramagnetic ring 20 are located at the upper axial end of outside upper damping sleeve 19, and by with shaft 16 it
Between screw-thread fit be fixedly mounted in shaft 16, interior lower damping sleeve 21 is located at the radially inner side of shaft 16, interior middle magnetic guiding loop 22
Positioned at the upper axial end of interior lower damping sleeve 21, interior upper damping sleeve 23 is located at the upper axial end of interior middle magnetic guiding loop 22, interior upper paramagnetic ring
24 are located at the upper axial end of interior upper damping sleeve 23, and are fixedly mounted in shaft 16 by the screw-thread fit between shaft 16.
Outside upper permanent magnet 3A, outer lower permanent magnet 3B, outer middle permanent magnet 4, outside upper magnetism-isolating loop 5A, outer lower magnetism-isolating loop 5B, outer permanent magnet locknut
6, the radially inner side of fixed seat 7 and outer component locknut 8 and interior upper permanent magnet 11A, interior lower permanent magnet 11B, interior middle permanent magnet 12, interior
Air is formed between upper magnetism-isolating loop 13A, interior lower magnetism-isolating loop 13B, interior permanent magnet locknut 14 and the radial outside of inner assembly locknut 15
Air gap.
Fig. 3 is the sectional view of the stator system of the technology of the present invention solution, and stator system includes mainly：Outer installation set 1,
It is outer magnetic guiding loop 2, outside upper permanent magnet 3A, outer lower permanent magnet 3B, outer middle permanent magnet 4, outside upper magnetism-isolating loop 5A, outer lower magnetism-isolating loop 5B, outer
Permanent magnet locknut 6, fixed seat 7, outer component locknut 8, interior installation set 9, interior magnetic guiding loop 10, interior upper permanent magnet 11A, interior lower permanent magnet
11B, interior middle permanent magnet 12, interior upper magnetism-isolating loop 13A, interior lower magnetism-isolating loop 13B, interior permanent magnet locknut 14 and inner assembly locknut 15；Outside
Installation set 1 be located at outer magnetic guiding loop 2, outside upper permanent magnet 3A, outer lower permanent magnet 3B, outer middle permanent magnet 4, outside upper magnetism-isolating loop 5A and it is outer under
The radial outside of magnetism-isolating loop 5B, outer magnetic guiding loop 2 are located at the radially inner side of outer installation set 1, outside upper permanent magnet 3A and outer lower permanent magnet
3B is located at 2 radially inner side upper end of outer magnetic guiding loop and radially inner side lower end, and it is inside that outer middle permanent magnet 4 is located at 2 diameter of outer magnetic guiding loop
Side center, outside upper magnetism-isolating loop 5A and outer lower magnetism-isolating loop 5B are located at the upper axial end and lower axial end of outer middle permanent magnet 4
Position, outer magnetic guiding loop 2, outside upper permanent magnet 3A, outer lower permanent magnet 3B, outer middle permanent magnet 4, outside upper magnetism-isolating loop 5A and outer lower magnetism-isolating loop
5B is fixedly mounted by the screw-thread fit between outer permanent magnet locknut 6 and outer installation set 1 in outer installation set 1, outer installation set 1,
Outer magnetic guiding loop 2, outside upper permanent magnet 3A, outer lower permanent magnet 3B, outer middle permanent magnet 4, outside upper magnetism-isolating loop 5A, outer lower magnetism-isolating loop 5B and outer
Permanent magnet locknut 6 is located at 7 annular groove outer wall radially inner side of fixed seat, and passes through the screw thread between outer component locknut 8 and fixed seat 7
Cooperation be fixedly mounted in fixed seat 7, interior installation set 9 be located at interior magnetic guiding loop 10, interior upper permanent magnet 11A, interior lower permanent magnet 11B,
The radially inner side of interior middle permanent magnet 12, interior upper magnetism-isolating loop 13A and interior lower magnetism-isolating loop 13B, interior magnetic guiding loop 10 are located at interior installation set 9
Radial outside, interior upper permanent magnet 11A and interior lower permanent magnet 11B be located at interior magnetic guiding loop 10 radial outside upper end and diameter it is outside
Side lower end position, interior middle permanent magnet 12 are located at the radial outside center of interior magnetic guiding loop 10, interior upper magnetism-isolating loop 13A and it is interior under every
Magnet ring 13B is located at upper axial end and the lower axial end position of interior middle permanent magnet 12, magnetic guiding loop 10, interior upper permanent magnet 11A, interior
Lower permanent magnet 11B, interior middle permanent magnet 12, interior upper magnetism-isolating loop 13A and interior lower magnetism-isolating loop 13B pass through interior permanent magnet locknut 14 and Nei An
Screw-thread fit between encapsulation 9 is fixedly mounted in interior installation set 9, interior installation set 9, interior magnetic guiding loop 10, interior upper permanent magnet 11A,
Interior lower permanent magnet 11B, interior middle permanent magnet 12, interior upper magnetism-isolating loop 13A, interior lower magnetism-isolating loop 13B, interior permanent magnet locknut 14, which are located at, to be fixed
7 annular groove inner wall radial outsides of seat, and fixation is fixedly mounted on by the screw-thread fit between inner assembly locknut 15 and fixed seat 7
On seat 7.Outside upper permanent magnet 3A, outer lower permanent magnet 3B, outer middle permanent magnet 4, interior upper permanent magnet 11A, interior lower permanent magnet 11B and it is interior in
Permanent magnet 12 is radial magnetizing, and magnetizing direction is followed successively by：N, outer N in N, outer S in S, outer S in N, outer N in N, outer S in outer S
N in S, outer S in S, outer N in N, outer N in S, outer S in S, outer N in interior S or outer N.
Fig. 4 is the sectional view of the rotor-support-foundation system of the technology of the present invention solution, and rotor-support-foundation system includes mainly：It is shaft 16, outer
Lower damping sleeve 17, outer middle paramagnetic ring 18, outside upper damping sleeve 19, outside upper paramagnetic ring 20, interior lower damping sleeve 21, interior middle magnetic guiding loop 22,
Interior upper damping sleeve 23 and interior upper paramagnetic ring 24.
Fig. 5 is the outer installation set 1 of the technology of the present invention solution, outer magnetic guiding loop 2, outside upper permanent magnet 3A, outer lower permanent magnet
The assemble cross-section of 3B, outer middle permanent magnet 4, outside upper magnetism-isolating loop 5A, outer lower magnetism-isolating loop 5B and outer permanent magnet locknut 6 composition, outer peace
Encapsulation 1 be located at outer magnetic guiding loop 2, outside upper permanent magnet 3A, outer lower permanent magnet 3B, outer middle permanent magnet 4, outside upper magnetism-isolating loop 5A and it is outer under every
The radial outside of magnet ring 5B, outer magnetic guiding loop 2 are located at the radially inner side of outer installation set 1, outside upper permanent magnet 3A and outer lower permanent magnet 3B
It is located at 2 radially inner side upper end of outer magnetic guiding loop and radially inner side lower end, outer middle permanent magnet 4 is located at 2 radially inner side of outer magnetic guiding loop
Center, outside upper magnetism-isolating loop 5A and outer lower magnetism-isolating loop 5B are located at upper axial end and the lower axial end position of outer middle permanent magnet 4
It sets, outer magnetic guiding loop 2, outside upper permanent magnet 3A, outer lower permanent magnet 3B, outer middle permanent magnet 4, outside upper magnetism-isolating loop 5A and outer lower magnetism-isolating loop 5B
It is fixedly mounted in outer installation set 1 by the screw-thread fit between outer permanent magnet locknut 6 and outer installation set 1.
Fig. 6 is the interior installation set 9 of the technology of the present invention solution, interior magnetic guiding loop 10, interior upper permanent magnet 11A, interior lower permanent magnetism
The component section view of body 11B, interior middle permanent magnet 12, interior upper magnetism-isolating loop 13A, interior lower magnetism-isolating loop 13B and interior permanent magnet locknut 14 composition
Figure, interior installation set 9 be located at interior magnetic guiding loop 10, interior upper permanent magnet 11A, interior lower permanent magnet 11B, interior middle permanent magnet 12, it is interior on every magnetic
The radially inner side of ring 13A and interior lower magnetism-isolating loop 13B, interior magnetic guiding loop 10 are located at the radial outside of interior installation set 9, interior upper permanent magnet
11A and interior lower permanent magnet 11B is located at radial outside upper end and the radial outside lower end position of interior magnetic guiding loop 10, interior middle permanent magnetism
Body 12 is located at the radial outside center of interior magnetic guiding loop 10, interior upper magnetism-isolating loop 13A and interior lower magnetism-isolating loop 13B be located at it is interior in
The upper axial end of permanent magnet 12 and lower axial end position, magnetic guiding loop 10, interior upper permanent magnet 11A, interior lower permanent magnet 11B, it is interior in forever
Magnet 12, interior upper magnetism-isolating loop 13A and interior lower magnetism-isolating loop 13B are matched by the screw thread between interior permanent magnet locknut 14 and interior installation set 9
It closes and is fixedly mounted in interior installation set 9.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (6)
1. a kind of axial passive magnetic bearing of high rigidity high-damping, is mainly made of stator system and rotor-support-foundation system, feature exists
In stator system includes mainly：It is outer installation set (1), outer magnetic guiding loop (2), outside upper permanent magnet (3A), outer lower permanent magnet (3B), outer
Middle permanent magnet (4), outside upper magnetism-isolating loop (5A), outer lower magnetism-isolating loop (5B), outer permanent magnet locknut (6), fixed seat (7), outer component lock
Female (8), interior installation set (9), interior magnetic guiding loop (10), interior upper permanent magnet (11A), interior lower permanent magnet (11B), interior middle permanent magnet
(12), interior upper magnetism-isolating loop (13A), interior lower magnetism-isolating loop (13B), interior permanent magnet locknut (14), inner assembly locknut (15)；Rotor-support-foundation system
Include mainly：Shaft (16), outer lower damping sleeve (17), outer middle paramagnetic ring (18), outside upper damping sleeve (19), outside upper paramagnetic ring
(20), interior lower damping sleeve (21), interior middle magnetic guiding loop (22), interior upper damping sleeve (23), interior upper paramagnetic ring (24)；Outer installation set (1)
Positioned at outer magnetic guiding loop (2), outside upper permanent magnet (3A), outer lower permanent magnet (3B), outer middle permanent magnet (4), outside upper magnetism-isolating loop (5A) and
The radial outside of outer lower magnetism-isolating loop (5B), outer magnetic guiding loop (2) are located at the radially inner side of outer installation set (1), outside upper permanent magnet (3A)
It is located at outer magnetic guiding loop (2) radially inner side upper end and radially inner side lower end, outer middle permanent magnet (4) position with outer lower permanent magnet (3B)
In outer magnetic guiding loop (2) radially inner side center, outside upper magnetism-isolating loop (5A) and outer lower magnetism-isolating loop (5B) are located at outer middle permanent magnetism
The upper axial end of body (4) and lower axial end position, outer magnetic guiding loop (2), outside upper permanent magnet (3A), outer lower permanent magnet (3B), it is outer in
Permanent magnet (4), outside upper magnetism-isolating loop (5A) and outer lower magnetism-isolating loop (5B) pass through between outer permanent magnet locknut (6) and outer installation set (1)
Screw-thread fit be fixedly mounted in outer installation set (1), outer installation set (1), outer magnetic guiding loop (2), outside upper permanent magnet (3A), it is outer under
Permanent magnet (3B), outer middle permanent magnet (4), outside upper magnetism-isolating loop (5A), outer lower magnetism-isolating loop (5B) and outer permanent magnet locknut (6) are located at solid
Reservation (7) annular groove outer wall radially inner side, and peace is fixed by the screw-thread fit between outer component locknut (8) and fixed seat (7)
In fixed seat (7), interior installation set (9) be located at interior magnetic guiding loop (10), interior upper permanent magnet (11A), interior lower permanent magnet (11B),
The radially inner side of interior middle permanent magnet (12), interior upper magnetism-isolating loop (13A) and interior lower magnetism-isolating loop (13B), interior magnetic guiding loop (10) are located at interior
The radial outside of installation set (9), interior upper permanent magnet (11A) and interior lower permanent magnet (11B) are located at the diameter of interior magnetic guiding loop (10)
Upper end and radial outside lower end position outward, interior middle permanent magnet (12) are located at the radial outside centre bit of interior magnetic guiding loop (10)
It sets, interior upper magnetism-isolating loop (13A) and interior lower magnetism-isolating loop (13B) are located at the upper axial end and lower axial end of interior middle permanent magnet (12)
Position, magnetic guiding loop (10), interior upper permanent magnet (11A), interior lower permanent magnet (11B), interior middle permanent magnet (12), interior upper magnetism-isolating loop
(13A) and interior lower magnetism-isolating loop (13B) are fixedly mounted by the screw-thread fit between interior permanent magnet locknut (14) and interior installation set (9)
In interior installation set (9), interior installation set (9), interior magnetic guiding loop (10), interior upper permanent magnet (11A), interior lower permanent magnet (11B), it is interior in
Permanent magnet (12), interior upper magnetism-isolating loop (13A), interior lower magnetism-isolating loop (13B), interior permanent magnet locknut (14) are located at fixed seat (7) annular
Slot inner wall radial outside, and fixed seat is fixedly mounted on by the screw-thread fit between inner assembly locknut (15) and fixed seat (7)
(7) on, shaft (16) is located at outer installation set (1), outside upper permanent magnet (3A), outer lower permanent magnet (3B), outer middle permanent magnet (4), outer
Upper magnetism-isolating loop (5A), outer lower magnetism-isolating loop (5B), outer permanent magnet locknut (6) and outer component locknut (8) radially inner side, outer lower damping
Set (17) is located at the radial outside of shaft (16), and outer middle paramagnetic ring (18) is located at the upper axial end of outer lower damping sleeve (17), outside upper
Damping sleeve (19) is located at the upper axial end of outer middle paramagnetic ring (18), and outside upper paramagnetic ring (20) is located at the axial direction of outside upper damping sleeve (19)
Upper end, and be fixedly mounted in shaft (16) by the screw-thread fit between shaft (16), interior lower damping sleeve (21), which is located at, to be turned
The radially inner side of axis (16), interior middle magnetic guiding loop (22) are located at the upper axial end of interior lower damping sleeve (21), interior upper damping sleeve (23) position
In the upper axial end of interior middle magnetic guiding loop (22), interior upper paramagnetic ring (24) is located at the upper axial end of interior upper damping sleeve (23), and passes through
Screw-thread fit between shaft (16) is fixedly mounted in shaft (16).It is outside upper permanent magnet (3A), outer lower permanent magnet (3B), outer
Middle permanent magnet (4), outside upper magnetism-isolating loop (5A), outer lower magnetism-isolating loop (5B), outer permanent magnet locknut (6), fixed seat (7) and outer component lock
The radially inner side of female (8) and interior upper permanent magnet (11A), interior lower permanent magnet (11B), interior middle permanent magnet (12), interior upper magnetism-isolating loop
Air is formed between (13A), interior lower magnetism-isolating loop (13B), interior permanent magnet locknut (14) and the radial outside of inner assembly locknut (15)
Air gap.
2. the axial passive magnetic bearing of high rigidity high-damping according to claim 1, it is characterised in that：Outside upper permanent magnet
The axial width of (3A), outside upper paramagnetic ring (20), interior upper paramagnetic ring (24) and interior upper permanent magnet (11A) is equal and is aligned, outside upper
Magnetism-isolating loop (5A), outside upper damping sleeve (19), the axial width of interior upper damping sleeve (23) and interior upper magnetism-isolating loop (13A) are equal and right
Together, the axial width of outer middle permanent magnet (4), outer middle paramagnetic ring (18), interior middle magnetic guiding loop (22) and interior middle permanent magnet (12) is equal
And be aligned, outer lower magnetism-isolating loop (5B), outer lower damping sleeve (17), interior lower damping sleeve (21) and interior lower magnetism-isolating loop (13B) axial thickness
It spends equal and is aligned, the axial width of outer lower permanent magnet (3B), interior lower permanent magnet (11B) and shaft (16) lower end is equal and right
Together.
3. the axial passive magnetic bearing of high rigidity high-damping according to claim 1, it is characterised in that：Outer magnetic guiding loop (2),
Interior magnetic guiding loop (10), shaft (16), outer middle paramagnetic ring (18), outside upper paramagnetic ring (20), interior middle magnetic guiding loop (22) and interior upper paramagnetic
Ring (24) is the material of magnetic conduction, and specially 1J50 or 1J22 materials are made.
4. the axial passive magnetic bearing of high rigidity high-damping according to claim 1, it is characterised in that：The outer installation
Cover (1), outside upper magnetism-isolating loop (5A), outer lower magnetism-isolating loop (5B), outer permanent magnet locknut (6), fixed seat (7), outer component locknut (8),
Interior installation set (9), interior upper magnetism-isolating loop (13A), interior lower magnetism-isolating loop (13B), interior permanent magnet locknut (14) and inner assembly locknut (15)
It is duralumin, hard alumin ium alloy 2A12 or extra super duralumin alloy 7A09 bar materials.
5. the axial passive magnetic bearing of high rigidity high-damping according to claim 1, it is characterised in that：It is described it is outside upper forever
Magnet (3A), outer lower permanent magnet (3B), outer middle permanent magnet (4), interior upper permanent magnet (11A), interior lower permanent magnet (11B) and it is interior in forever
Magnet (12) is Nd Fe B alloys or shirt cobalt alloy hard magnetic material, and is radial magnetizing, and magnetizing direction is followed successively by：In outer S
N, S, outer S in S, outer N in N, outer N in S, outer S in S, outer N in S or outer N in N, outer N in N, outer S in S, outer S in N, outer N in outer S
Interior N.
6. the axial passive magnetic bearing of high rigidity high-damping according to claim 1, it is characterised in that：Lower damping sleeve outside
(17), outside upper damping sleeve (19), interior lower damping sleeve (21) and interior upper damping sleeve (23) use aluminium or copper product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810581209.XA CN108679084A (en) | 2018-06-07 | 2018-06-07 | A kind of axial passive magnetic bearing of high rigidity high-damping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810581209.XA CN108679084A (en) | 2018-06-07 | 2018-06-07 | A kind of axial passive magnetic bearing of high rigidity high-damping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108679084A true CN108679084A (en) | 2018-10-19 |
Family
ID=63810037
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810581209.XA Withdrawn CN108679084A (en) | 2018-06-07 | 2018-06-07 | A kind of axial passive magnetic bearing of high rigidity high-damping |
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| Country | Link |
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| CN (1) | CN108679084A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973527A (en) * | 2019-04-29 | 2019-07-05 | 北京石油化工学院 | A kind of axial passive magnetic bearing of the big damping of the high rigidity with halbach magnetism gathering rings |
| WO2020164371A1 (en) * | 2019-02-14 | 2020-08-20 | 苏州心擎医疗技术有限公司 | Stiffness gain mechanism for magnetic suspension bearing, magnetic suspension bearing, and blood pump |
| CN113443176A (en) * | 2021-07-02 | 2021-09-28 | 哈尔滨工业大学 | Electromagnetic actuator for nano satellite deployer |
| CN113562203A (en) * | 2021-07-02 | 2021-10-29 | 哈尔滨工业大学 | Electromagnetic actuator with redundant air gap |
-
2018
- 2018-06-07 CN CN201810581209.XA patent/CN108679084A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020164371A1 (en) * | 2019-02-14 | 2020-08-20 | 苏州心擎医疗技术有限公司 | Stiffness gain mechanism for magnetic suspension bearing, magnetic suspension bearing, and blood pump |
| CN109973527A (en) * | 2019-04-29 | 2019-07-05 | 北京石油化工学院 | A kind of axial passive magnetic bearing of the big damping of the high rigidity with halbach magnetism gathering rings |
| CN113443176A (en) * | 2021-07-02 | 2021-09-28 | 哈尔滨工业大学 | Electromagnetic actuator for nano satellite deployer |
| CN113562203A (en) * | 2021-07-02 | 2021-10-29 | 哈尔滨工业大学 | Electromagnetic actuator with redundant air gap |
| CN113562203B (en) * | 2021-07-02 | 2022-12-13 | 哈尔滨工业大学 | Electromagnetic actuator with redundant air gaps |
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