CN205744911U - Magnetic suspension bearing, supporting device and motor assembly - Google Patents
Magnetic suspension bearing, supporting device and motor assembly Download PDFInfo
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- CN205744911U CN205744911U CN201620399549.7U CN201620399549U CN205744911U CN 205744911 U CN205744911 U CN 205744911U CN 201620399549 U CN201620399549 U CN 201620399549U CN 205744911 U CN205744911 U CN 205744911U
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- permanent
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- 239000000725 suspension Substances 0.000 title claims abstract description 45
- 238000004804 winding Methods 0.000 claims abstract description 44
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 238000010276 construction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 206010057071 Rectal tenesmus Diseases 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 208000012271 tenesmus Diseases 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides a magnetic suspension bearing, strutting arrangement and motor element, wherein, magnetic suspension bearing is used for the counter shaft to support spacingly, include: the rotor iron core is sleeved on the shaft, and a rotor permanent magnet is arranged on the outer side of the rotor iron core; and the stator core is sleeved outside the rotor core, a plurality of stator windings which are arranged corresponding to the rotor permanent magnet are arranged on the inner ring surface of the stator core facing the stator core, and the stator windings and the rotor permanent magnet form electromagnetic force to enable the rotor core to keep suspended. The utility model discloses a magnetic suspension bearing, strutting arrangement and motor element have solved among the prior art problem that the phenomenon that the temperature is high, the temperature rise is fast, the rotational speed can not reach requirement, the noise is big has appeared easily to the bearing effectively.
Description
Technical field
This utility model relates to technical field of bearings, in particular to a kind of magnetic suspension bearing,
Support means and electric machine assembly.
Background technology
Usually using mechanical bearing on the output shaft of motor of the prior art, this bearing exists
Under the output shaft of high-speed rotation drives, the temperature being easily caused appearance is high, rate of rise in temperature is fast,
Turn up is less than the phenomenon required, noise is big.
Utility model content
This utility model embodiment provides a kind of magnetic suspension bearing, support means and group of motors
Part, easily occurs that temperature is high, rate of rise in temperature fast, rotating speed solving prior art middle (center) bearing
Do not reach requirement, phenomenon problem that noise is big.
For solving above-mentioned technical problem, this utility model provides a kind of magnetic suspension bearing, is used for
Countershaft be supported spacing, it is characterised in that including: rotor core, be set on axle, turn
The outside of sub-iron core is provided with rotor permanent magnet；Stator core, is set in the outside of rotor core,
Stator core is correspondingly arranged many with rotor permanent magnet towards being provided with on the inner ring surface of stator core
Individual stator winding, stator winding and rotor permanent magnet form electromagnetic force makes rotor core keep suspending.
Further, rotor core in the form of a ring, stator core in the form of a ring, rotor core, stator
Iron core is arranged concentrically with axle.
Further, also include that the inner ring surface being arranged on stator core is to upper multiple displacement sensings
Device, displacement transducer is configured around rotor permanent magnet, and each displacement transducer is arranged
Between each two stator winding.
Further, the quantity of stator winding is six, and the quantity of displacement transducer is six,
Stator winding is uniformly distributed along the inner ring surface circumference of stator core.
Further, the quantity of stator winding is the even number of at least 4.
Further, also including support, stator core is fixedly mounted on support.
Further, stator core has stator tooth, stator on the inner ring surface of stator core
On the stator teeth, stator winding is simplex winding structure in winding winding.
According to another aspect of the present utility model, it is provided that a kind of support means, for countershaft
Being supported spacing, including above-mentioned magnetic suspension bearing, the rotor core of magnetic suspension bearing is sheathed
On axle, support means also includes permanent-magnetic clamp and supports permanent magnets, and permanent-magnetic clamp is set in the two of axle
End, supports permanent magnets is arranged on the bottom of permanent-magnetic clamp, arranges between permanent-magnetic clamp and supports permanent magnets
Become magnetic suspension state, when axle does not rotates, permanent-magnetic clamp holding shaft driven suspension.
Further, supports permanent magnets at least two, and it is separately positioned on the two of permanent-magnetic clamp
Side, the magnetic force that permanent-magnetic clamp is formed is made permanent-magnetic clamp cannot move in the horizontal direction by supports permanent magnets.
According to other aspect of the present utility model, it is provided that a kind of electric machine assembly, including electricity
Machine, also includes above-mentioned support means, and the output shaft of motor is supported spacing by support means.
Application the technical solution of the utility model, stator core is by stator winding for rotor forever
The electromagnetic force that magnet produces, forms support force to rotor core, keeps rotor core to suspend and phase
To balance, the suspending power that stator winding is formed with rotor permanent magnet, limit rotor core and axle
Degree of freedom, make rotor core be only capable of and follow axle and rotate, so serve the work of bearing
With, i.e. to rotary shaft or the support of motor shaft and spacing, can substitute for mechanical bearing.Due to
The complete magnetic suspension of rotor core, and not friction in running, can with the rotation speed requirements of lift shaft,
Also reduce temperature and rate of rise in temperature, while improving electric efficiency, also simultaneously
Decreasing mechanical noise, for motor, the resonance of motor complete machine has only to consider stator
The vibration of iron core itself, so will be greatly reduced complete machine and resonate at temperature rise, noise and complete machine
The problem of aspect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the magnetic suspension bearing of this utility model embodiment；
Fig. 2 is the magnetic force structural representation of the magnetic suspension bearing of this utility model embodiment；
Fig. 3 is the fundamental diagram of the magnetic suspension bearing of this utility model embodiment；
Fig. 4 is the structural representation of the support means of this utility model embodiment.
Description of reference numerals:
10, rotor core；11, rotor permanent magnet；20, stator core；21, stator winding；
22, displacement transducer；23, stator tooth；30, axle；40, support；51, permanent-magnetic clamp；52、
Supports permanent magnets.
Detailed description of the invention
With specific embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings, but
Not as to restriction of the present utility model.
See Fig. 1 and Fig. 2, according to embodiment of the present utility model, it is provided that a kind of magnetic suspension bearing,
It is supported spacing for countershaft 30, the support limit effect being mainly used on motor output shaft,
The magnetic suspension bearing of the present embodiment includes rotor core 10 and stator core 20, and rotor core 10 overlaps
Being located on axle 30, the outside of rotor core 10 is provided with rotor permanent magnet 11, rotor permanent magnet 11
Above replacing in N pole and S pole, stator core 20 is set in the outside of rotor core 10, stator core
20 is multiple with what rotor permanent magnet 11 was correspondingly arranged towards being provided with on the inner ring surface of stator core 20
Stator winding 21, stator winding 21 and rotor permanent magnet 11 form electromagnetic force makes rotor core keep
Suspend.
The electromagnetic force that stator core 20 is produced for rotor permanent magnet 11 by stator winding 21 is right
Rotor core 10 forms support force, keeps rotor core 10 to suspend and relative equilibrium, stator winding
21 suspending powers formed with rotor permanent magnet 11, limit rotor core 10 and the degree of freedom of axle 30,
Make rotor core be only capable of to follow axle 30 and rotate, so serve the effect of bearing, the most right
Rotary shaft or the support of motor shaft and spacing, can substitute for mechanical bearing.Due to rotor core
Not friction in magnetic suspension completely, and operation, can be with the rotation speed requirements of lift shaft, also simultaneously
Reduce temperature and rate of rise in temperature, while improving electric efficiency, also reduce
Mechanical noise, for motor, the resonance of motor complete machine has only to consider that stator core is originally
The vibration of body, so will be greatly reduced complete machine in terms of temperature rise, noise and complete machine resonance
Problem.
In the present embodiment, rotor core 10 in the form of a ring, stator core 20 in the form of a ring, rotor ferrum
Core 10, stator core 20 are arranged concentrically with axle.Rotor core 10 and stator core 20 are all tools
Have certain thickness ring-type, if the constructional needs of the moment require it, thickness can specifically be changed.
Magnetic suspension bearing also includes that the inner ring surface being arranged on stator core 20 passes to upper multiple displacements
Sensor 22, displacement transducer 22 is configured around rotor permanent magnet 11, and each displacement
Sensor 22 is arranged between each two stator winding 21.Displacement transducer 22 is used to measure
The change in location of rotor core, when the position of rotor core skew regulation, displacement transducer meeting
This signal is sent to real-time controller, and controller increases the control electricity of stator winding the most accordingly
Stream so that the suction of generation or repulsive force change, controls rotor core and moves, and then make to turn
Sub-iron core a surname send out in the position of regulation.
It is further preferred that the quantity of magnetic suspension bearing stator winding 21 is six, displacement sensing
The quantity of device 22 is six, and stator winding 21 uniformly divides along the inner ring surface circumference of stator core 20
Cloth.There are due to rotor core 6 degree of freedom in space, need to be limited by suspending power to turn
5 degree of freedom of sub-iron core, and then complete countershaft spacing and support, so stator winding 21
Quantity be six, it is ensured that for rotor core degree of freedom limit, and can to turn
The motion of sub-iron core reaches to be accurately controlled.
In the embodiment of a kind of unshowned magnetic suspension bearing, the structure of this magnetic suspension bearing with
The structure of above-described embodiment is essentially identical, differs only in the quantity of stator winding 21, this enforcement
In example, the quantity of stator winding 21 is 4, due to rotor core need to control in its space X and
The displacement of Y-direction, so being set as that by stator winding 21 4 both can have been passed through suction or row
Repulsion completes the movement of X and Y-direction.Certainly at some in other unshowned embodiments, magnetic
Stator winding 21 in suspension bearing can also be the even number of at least 4, stator winding 21
Quantity the most, its control rotor core the most accurate.
As it is shown in figure 1, in the present embodiment, magnetic suspension bearing also includes one for supporting stator
The support 40 of iron core 20, stator core 20 is fixedly mounted on support 40.Support 40 is general
It is arranged on the lower section of motor output shaft, is in the side of motor and is fixed on fixing together with motor
On plate or the first-class position of installing rack.
Shown in Fig. 2 and Fig. 3, stator core 20 is towards on the inner ring surface of stator core 20
There is stator tooth 23, stator winding 21 around being located on stator tooth 23, stator winding 21 be single around
Group structure.In the present embodiment, the quantity of stator winding 21 is 6, so controller passes through power
System sets control electric current I1, I2, I3, I4, I5 and I6 accordingly, so makes stator winding
21 produce different electromagnetic forces.
This utility model additionally provides the embodiment of a kind of support means, is supported for countershaft
Bearing that is spacing, that be mainly used on motor shaft, this support means includes the magnetic of above-described embodiment
Suspension bearing, concrete structure sees Fig. 4, in an embodiment, the rotor core of magnetic suspension bearing
10 are set on axle, and support means also includes permanent-magnetic clamp 51 and supports permanent magnets 52, permanent-magnetic clamp
51 two ends being set in axle, supports permanent magnets 52 is arranged on the bottom of permanent-magnetic clamp 51, permanent-magnetic clamp
It is arranged to magnetic suspension state between 51 and supports permanent magnets 52, when axle does not rotates, permanent-magnetic clamp
51 holding shaft driven suspensions.Stator winding uses simplex winding structure, so at independent control realization
The change of motor body internal magnetic field thus while producing torque field, also can control rotor ferrum
Core diameter to two degree of freedom, and axially three degree of freedom is controlled by driven suspension power, thus reaches
Stable operation to bearing-free state rotor.
Supports permanent magnets 52 at least two, and it is separately positioned on the both sides of permanent-magnetic clamp 51,
The magnetic force that permanent-magnetic clamp 51 is formed is made permanent-magnetic clamp 51 cannot move in the horizontal direction by supports permanent magnets 52
Dynamic.The quantity of supports permanent magnets 52 is two, two supports permanent magnets 52 and permanent-magnetic clamp 51 in
Triangle-Profile, so can form a support force, and make permanent-magnetic clamp 51 permanent-magnetic clamp 51
Stress by horizontal direction so that it is geo-stationary, will not produce movement in the horizontal direction.
Permanent-magnetic clamp or the permanent magnet of three same polarities are installed at rotating shaft two ends, arrive resting state
The driven suspension of lower radial direction, axial magnetic when running in conjunction with stator, it is achieved that rotor is no matter
In the magnetic suspension state run or under stopped status, so when motor stopping or when starting,
Prevent tenesmus that rotor core causes due to the suspending power losing stator core or beat.
This utility model additionally provides the embodiment of a kind of electric machine assembly, and electric machine assembly includes motor
With the support means of above-described embodiment, the output shaft of motor is supported spacing by support means.
In support means, magnetic suspension bearing serves the effect of mechanical bearing, i.e. to rotary shaft or motor
The support of axle and spacing, can substitute for mechanical bearing.Due to the complete magnetic suspension of rotor core, and
And not friction in running, therefore reduce temperature and rate of rise in temperature, improve electricity
While engine efficiency, also reducing mechanical noise, for motor, motor complete machine is altogether
Shake have only to consider stator core itself vibration, so will be greatly reduced complete machine temperature rise,
Problem in terms of noise and complete machine resonance.
Certainly, it is above preferred implementation of the present utility model.It should be pointed out that, for this skill
For the those of ordinary skill in art field, on the premise of without departing from this utility model ultimate principle,
Can also make some improvements and modifications, these improvements and modifications are also considered as guarantor of the present utility model
Protect scope.
Claims (10)
1. a magnetic suspension bearing, is supported spacing for countershaft (30), it is characterised in that
Including:
Rotor core (10), is set on described axle (30), described rotor core (10)
Outside is provided with rotor permanent magnet (11)；
Stator core (20), is set in the outside of described rotor core (10), described stator ferrum
Core (20) is provided with and described rotor permanent magnet on the inner ring surface of described stator core (20)
Multiple stator winding (21) that body (11) is correspondingly arranged, described stator winding (21) is with described
Rotor permanent magnet (11) forms electromagnetic force makes described rotor core (10) keep suspending.
Magnetic suspension bearing the most according to claim 1, it is characterised in that described rotor core
(10) in the form of a ring, described stator core (20) in the form of a ring, described rotor core (10), institute
State stator core (20) to be arranged concentrically with described axle.
Magnetic suspension bearing the most according to claim 1, it is characterised in that also include being arranged on
The inner ring surface of described stator core (20) gives upper multiple displacement transducers (22), described displacement
Sensor (22) is configured around described rotor permanent magnet (11), and each institute rheme
Displacement sensor (22) is arranged between stator winding described in each two (21).
Magnetic suspension bearing the most according to claim 3, it is characterised in that described stator winding
(21) quantity is six, and the quantity of institute's displacement sensors (22) is six, described fixed
Sub-winding (21) is uniformly distributed along the inner ring surface circumference of described stator core (20).
Magnetic suspension bearing the most according to claim 1, it is characterised in that described stator winding
(21) quantity is the even number of at least 4.
Magnetic suspension bearing the most according to claim 1, it is characterised in that also include support
(40), described stator core (20) is fixedly mounted on described support (40).
Magnetic suspension bearing the most according to claim 1, it is characterised in that described stator core
(20) on the inner ring surface of described stator core (20), there is stator tooth (23), described fixed
Sub-winding (21) is around being located on described stator tooth (23), and described stator winding (21) is single
Winding construction.
8. a support means, for countershaft be supported spacing, it is characterised in that include right
Require the magnetic suspension bearing according to any one of 1 to 7, the rotor core of described magnetic suspension bearing
(10) sheathed on the shaft, described support means also include permanent-magnetic clamp (51) and support forever
Magnet (52), described permanent-magnetic clamp (51) is set in the two ends of described axle, described supports permanent magnets
(52) bottom of described permanent-magnetic clamp (51), described permanent-magnetic clamp (51) and described it are arranged on
Be arranged to magnetic suspension state between support permanent magnet (52), when described axle does not rotates, described forever
Magnet ring (51) keeps described axle driven suspension.
Support means the most according to claim 8, it is characterised in that described supports permanent magnets
(52) at least two, and it is separately positioned on the both sides of described permanent-magnetic clamp (51), described
Supports permanent magnets (52) makes described permanent-magnetic clamp (51) to the magnetic force that described permanent-magnetic clamp (51) is formed
Cannot move in the horizontal direction.
10. an electric machine assembly, including motor, it is characterised in that also include claim 8 or
Support means described in 9, described support means is supported limit to the output shaft of described motor
Position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620399549.7U CN205744911U (en) | 2016-05-05 | 2016-05-05 | Magnetic suspension bearing, supporting device and motor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620399549.7U CN205744911U (en) | 2016-05-05 | 2016-05-05 | Magnetic suspension bearing, supporting device and motor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205744911U true CN205744911U (en) | 2016-11-30 |
Family
ID=57372494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620399549.7U Active CN205744911U (en) | 2016-05-05 | 2016-05-05 | Magnetic suspension bearing, supporting device and motor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205744911U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864291A (en) * | 2016-05-05 | 2016-08-17 | 珠海格力电器股份有限公司 | Magnetic suspension bearing, supporting device and motor assembly |
| CN108843688A (en) * | 2018-06-20 | 2018-11-20 | 珠海格力电器股份有限公司 | Magnetic suspension bearing |
-
2016
- 2016-05-05 CN CN201620399549.7U patent/CN205744911U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864291A (en) * | 2016-05-05 | 2016-08-17 | 珠海格力电器股份有限公司 | Magnetic suspension bearing, supporting device and motor assembly |
| CN105864291B (en) * | 2016-05-05 | 2018-06-12 | 珠海格力电器股份有限公司 | Magnetic suspension bearing, supporting device and motor assembly |
| CN108843688A (en) * | 2018-06-20 | 2018-11-20 | 珠海格力电器股份有限公司 | Magnetic suspension bearing |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |