CN105465175B - A kind of active magnetic bearing - Google Patents
A kind of active magnetic bearing Download PDFInfo
- Publication number
- CN105465175B CN105465175B CN201510999559.4A CN201510999559A CN105465175B CN 105465175 B CN105465175 B CN 105465175B CN 201510999559 A CN201510999559 A CN 201510999559A CN 105465175 B CN105465175 B CN 105465175B
- Authority
- CN
- China
- Prior art keywords
- magnetic bearing
- bearing
- generating equipment
- main body
- axle
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- 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.)
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000017525 heat dissipation Effects 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 14
- 239000002826 coolant Substances 0.000 claims abstract description 6
- 230000009969 flowable effect Effects 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000725 suspension Substances 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000002887 superconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
A kind of active magnetic bearing, it is related to a kind of bearing, including bearing main body, uniform circular is provided with several iron cores in bearing main body, magnet coil is wound with iron core, bearing main body is externally provided with generating equipment, the described magnet coil of generating equipment connection, generating equipment includes needing to be set in the stator on main shaft, some groups of stator winding are evenly arranged with stator, the permanent magnet being engaged with the stator winding is provided with main shaft, heat dissipation channel is additionally provided with bearing, the radiating groove being engaged with the heat dissipation channel is provided with iron core, heat dissipation channel is circumscribed with radiator, there is flowable coolant in heat dissipation channel.Compared with prior art, it is that coil power supply magnetic bearing produces magnetic suspension effect with axle that this magnetic bearing obtains electric power by the rotation of axle, allowing axle, magnetic bearing also works all the time at work, once avoiding axle damage that magnetic bearing power-off when conventional magnetic bearing adheres to two sets of electric power systems separately with axle can make to rotate at a high speed and the problem of fracture jeopardizes motor.
Description
Technical field
The present invention relates to a kind of bearing, especially a kind of magnetic bearing.
Background technology
Magnetic bearing, it is a kind of novel high-performance bearing.Compared with conventional ball bearings, sliding bearing and filmatic bearing,
Mechanical Contact is not present in magnetic bearing, and rotor can reach very high running speed, have mechanical wear is small, energy consumption is low, noise is small,
Long lifespan, without lubrication, without oily pollution the advantages that, the particular surroundings such as particularly suitable high speed, vacuum, ultra-clean.It can be widely used for machine
The fields such as tool processing, turbomachinery, Aero-Space, vacuum technique, rotor dynamics identification and test, being acknowledged as pole has
The novel bearing of future.Magnetic bearing is divided into can be divided into following three major types according to the presentation mode of magnetic force:Active magnetic bearing, also referred to as
Active magnetic bearings, magnetic field are controllable, and the position of rotor is suspended by detection, and carrying out active control realization by control system turns
Son suspends；Passive magnetic bearing, also referred to as passive magnetic bearing, the branch to the rotor portion free degree is realized with permanent magnet or superconductor
Hold；Magnetic axis is mixed, electromagnet and permanent magnet or superconductor are contained in its mechanical structure.
Active magnetic bearings have the advantages that rotating speed is high, contactless, unlubricated, are whether there is in some special occasions alternative excellent
Gesture.But a kind of active magnetic bearing needs to be powered, once power failure will allow magnetic to disappear, at this moment rotate at a high speed
Axle can not be just suspended in magnetic bearing, moment friction increase, be so very easy to that axle is caused to damage, more serious meeting allows axle to break
Split or directly allow motor to be protected and scrap.
The content of the invention
The present invention is directed to deficiency of the prior art, there is provided a kind of active magnetic bearing, the rotation that this magnetic bearing passes through axle
It is that coil power supply causes magnetic bearing and axle to produce magnetic suspension effect to turn to obtain electric power, allows axle magnetic bearing also work all the time at work
Make, once avoid the axle that magnetic bearing power-off can make to rotate at a high speed when conventional magnetic bearing and axle adhere to two sets of electric power systems separately damage with
And it is broken the problem of jeopardizing motor.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：A kind of active magnetic bearing,
Including bearing main body, uniform circular is provided with several iron cores in described bearing main body, and electromagnetism is wound with described iron core
Coil, described bearing main body are externally provided with generating equipment, the described magnet coil of described generating equipment connection, described generating
Equipment includes needing to be set in the stator on main shaft, and some groups of stator winding, described master are evenly arranged with described stator
The permanent magnet being engaged with the stator winding is provided with axle, heat dissipation channel, described iron are additionally provided with described bearing
The radiating groove being engaged with the heat dissipation channel is provided with core, described heat dissipation channel is circumscribed with radiator, described radiating
There is flowable coolant in passage.
In above-mentioned technical proposal, it is preferred that also including controller, power governor.
In above-mentioned technical proposal, it is preferred that the displacement sensing for connecting the controller is provided with described bearing main body
Device.
In above-mentioned technical proposal, it is preferred that described generating equipment also includes voltage-stablizer and frequency modulator.
In above-mentioned technical proposal, it is preferred that described stator bottom is provided with holding support.
In above-mentioned technical proposal, it is preferred that be provided with standby electricity between described generating equipment and described magnet coil
Power connecting line.
In above-mentioned technical proposal, it is preferred that described generating equipment also includes storage battery.
The present invention magnetic bearing not outside connection direct power supply but be circumscribed with generating equipment, pass through generating equipment and axle
Effect produce electric current be magnetic bearing power supply.Include being set in stator on axle for this generating equipment, be evenly arranged with stator
Some groups of stator winding, are provided with the permanent magnet being engaged with stator winding on axle, when axle rotates, in permanent magnet and determine
Generating equipment will produce endlessly electric current supply magnetic bearing in the presence of sub- winding so that magnetic bearing is integral all the time with axle
Motion, only magnetic bearing can just power off when axle does not rotate, and ensure that axle is synchronous all the time with magnetic bearing, avoid using two
Magnetic bearing electric power system is run quickly routed the problem of causing heavy losses to axle and motor suddenly when covering electric power system.While in order to avoid
Coil crosses heat affecting, and heat dissipation channel is also additionally provided with bearing, and the radiating being engaged with heat dissipation channel is provided with iron core
Groove, water-cooling is carried out by coolant in radiating groove, keep magnetic bearing temperature stabilization.
Compared with prior art, the beneficial effects of the invention are as follows：It is coil that this magnetic bearing obtains electric power by the rotation of axle
Power supply causes magnetic bearing and axle to produce magnetic suspension effect, and allowing axle, magnetic bearing also works all the time at work, avoids conventional magnetic axis
Once holding, the axle that magnetic bearing power-off can make to rotate at a high speed when adhering to two sets of electric power systems separately with axle damages and fracture jeopardizes motor
Problem.
Brief description of the drawings
Fig. 1 is back portion perspective diagram of the present invention.
Back portion perspective diagram when Fig. 2 is use state of the present invention.
Fig. 3 is side schematic view of the present invention.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of magnetic bearing, including bearing main body 1, described bearing main body 1 are externally provided with generating
Equipment 3.Uniform circular is provided with several iron cores 11 in described bearing main body 1, and electromagnetic wire is wound with described iron core 11
Circle, the magnet coil on the same iron core 11 are divided into A groups coil 12 and B groups coil 13, the A groups coil 12 and the B
The group number of turn of coil 13 is identical and the sense of current is also identical, and the A groups coil 12 and the B groups coil 13 connect described hair respectively
Electric equipment 3.Controller 7, displacement sensing of the connection of controller 7 in bearing main body 1 are provided with described bearing main body 1
Device.Described generating equipment 3 includes needing the stator 31 being set on main shaft 2, and generating equipment 3 is also included described in power governor
Generating equipment also include voltage-stablizer and frequency modulator and storage battery.The described bottom of stator 31, which is provided with, keeps support 39, institute
Some groups of stator winding 32 are evenly arranged with the stator 31 stated, 2 are provided with and the phase of stator winding 32 on described main shaft
The permanent magnet 21 of cooperation.Heat dissipation channel 81 is additionally provided with described bearing main body 1, be provided with described iron core 11 with it is described
The radiating groove 82 that heat dissipation channel 81 is engaged, described heat dissipation channel 81 are circumscribed with radiator 8, had in described heat dissipation channel 81
There is flowable coolant.Several circular passages 91 are provided with described stator 31, the described external world of circular passage 91 has
Cooler bin 9, the interior flowing in described circular passage 91 are provided with coolant.Described generating equipment 3 and described magnet coil it
Between be provided with non-firm power connecting line 6.
The magnetic bearing of the present invention not outside connection direct power supply but be circumscribed with generating equipment 3, by generating equipment 3 and
The effect of axle 2 produces electric current and powered for magnetic bearing.Include being set in stator 31 on axle for this generating equipment 3, on stator 31
It is even to be provided with some groups of stator winding 32, the permanent magnet 21 corresponding with stator winding 32 is provided with relative axle 2, when axle 2
When rotating at a high speed, stator winding 32 will produce electric current, in order to keep the stabilization powered to bearing main body 1, also in generating equipment 3
Generating equipment described in upper setting power governor also includes voltage-stablizer and frequency modulator and storage battery, allows generating equipment 3 to continue
Stable powers for bearing main body 1.Cooling device is additionally provided with stator 31 and bearing main body 1, bearing main body 1 is prevented and determines
Son 31 overheats in the course of the work, in order to avoid influence normal work.In order to ensure just in case, the electromagnetism in bearing main body 1 on iron core 11
Coil is divided into A groups coil 12 and B groups coil 13, and two groups of coils connect generating equipment 3 by different power rails 6 respectively,
The further normal work for ensureing bearing main body 1.It is lasting for bearing main body that as long as main shaft 2 of the invention rotates can always
1 power supply so that main shaft 2 and bearing main body 1 remain that identical works, be not in axle 2 still in high-speed rotation, bearing master
The phenomenon of the dead electricity of body 1, even if axle 2 stops operating, the electric power of storage battery memory storage can also keep the suspension of main shaft 2, allow work
There is time enough to carry out malfunction elimination as personnel.
Claims (7)
1. a kind of active magnetic bearing, including bearing main body（1）, described bearing main body（1）If internal uniform circular is provided with
Dry iron core（11）, described iron core（11）On be wound with magnet coil, it is characterized in that, described bearing main body（1）It is externally provided with
Generating equipment（3）, described generating equipment（3）The described magnet coil of connection, described generating equipment（3）Including needing to be arranged
In main shaft（2）On stator（31）, described stator（31）On be evenly arranged with some groups of stator winding（32）, described main shaft
（2）On be provided with and the stator winding（32）The permanent magnet being engaged（21）, described bearing main body（1）Inside it is additionally provided with scattered
The passage of heat（81）, described iron core（11）On be provided with and the heat dissipation channel（81）The radiating groove being engaged（82）, it is described
Heat dissipation channel（81）It is circumscribed with radiator（8）, described heat dissipation channel（81）It is interior that there is flowable coolant.
2. a kind of active magnetic bearing according to claim 1, it is characterized in that, in addition to controller（7）, power adjusting
Device.
3. a kind of active magnetic bearing according to claim 2, it is characterized in that, described bearing main body（1）On be provided with
Connect the controller（7）Displacement transducer.
4. a kind of active magnetic bearing according to claim 1, it is characterized in that, described generating equipment（3）Also include steady
Depressor and frequency modulator.
5. a kind of active magnetic bearing according to claim 1, it is characterized in that, described stator（31）Bottom is provided with guarantor
Hold support（39）.
6. a kind of active magnetic bearing according to claim 1, it is characterized in that, described generating equipment（3）With it is described
Non-firm power connecting line is provided between magnet coil（6）.
7. a kind of active magnetic bearing according to claim 1, it is characterized in that, described generating equipment（3）Also include depositing
Storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510999559.4A CN105465175B (en) | 2015-12-28 | 2015-12-28 | A kind of active magnetic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510999559.4A CN105465175B (en) | 2015-12-28 | 2015-12-28 | A kind of active magnetic bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105465175A CN105465175A (en) | 2016-04-06 |
| CN105465175B true CN105465175B (en) | 2018-03-09 |
Family
ID=55603225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510999559.4A Active CN105465175B (en) | 2015-12-28 | 2015-12-28 | A kind of active magnetic bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105465175B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422621B (en) * | 2015-12-28 | 2018-10-12 | 南通市方圆轴承有限公司 | Active magnetic bearing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877761A (en) * | 1972-03-20 | 1975-04-15 | Padana Ag | Electromagnetic bearing means |
| CN201466812U (en) * | 2009-08-25 | 2010-05-12 | 中国人民解放军军事交通学院 | An electronic power supply device for horizontally axially rotating components |
| CN201571004U (en) * | 2009-10-28 | 2010-09-01 | 中国船舶重工集团公司第七一O研究所 | Magnetic levitation flywheel battery device |
| CN202833649U (en) * | 2012-09-27 | 2013-03-27 | 路斯特传动系统(上海)有限公司 | Magnetic levitation bearing |
| CN103490572A (en) * | 2013-05-28 | 2014-01-01 | 南京航空航天大学 | Three-degree-of-freedom magnetic suspension switch reluctance motor |
| EP2587636A3 (en) * | 2011-10-27 | 2014-12-17 | Linz Center Of Mechatronics Gmbh | Electrical machine, in particular brushless torque motor |
| DE102013015487A1 (en) * | 2013-09-19 | 2015-03-19 | Volker Dietz | Energy plant or power plant with low-contact, non-contact and / or magnetically mounted shaft |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5950220A (en) * | 1982-09-14 | 1984-03-23 | Natl Aerospace Lab | Multi-spindle control type magnetic bearing |
| JPH03255221A (en) * | 1990-02-28 | 1991-11-14 | Shimadzu Corp | Drive supporting mechanism of rotating body |
| JPH1182620A (en) * | 1997-09-11 | 1999-03-26 | Hitachi Ltd | Seismic isolation device |
| US7471022B2 (en) * | 2006-09-22 | 2008-12-30 | Sortore Christopher K | Magnetic bearing |
| EP2677177B1 (en) * | 2012-06-22 | 2020-10-14 | Skf Magnetic Mechatronics | Electric centrifugal compressor for vehicles |
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2015
- 2015-12-28 CN CN201510999559.4A patent/CN105465175B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877761A (en) * | 1972-03-20 | 1975-04-15 | Padana Ag | Electromagnetic bearing means |
| CN201466812U (en) * | 2009-08-25 | 2010-05-12 | 中国人民解放军军事交通学院 | An electronic power supply device for horizontally axially rotating components |
| CN201571004U (en) * | 2009-10-28 | 2010-09-01 | 中国船舶重工集团公司第七一O研究所 | Magnetic levitation flywheel battery device |
| EP2587636A3 (en) * | 2011-10-27 | 2014-12-17 | Linz Center Of Mechatronics Gmbh | Electrical machine, in particular brushless torque motor |
| CN202833649U (en) * | 2012-09-27 | 2013-03-27 | 路斯特传动系统(上海)有限公司 | Magnetic levitation bearing |
| CN103490572A (en) * | 2013-05-28 | 2014-01-01 | 南京航空航天大学 | Three-degree-of-freedom magnetic suspension switch reluctance motor |
| DE102013015487A1 (en) * | 2013-09-19 | 2015-03-19 | Volker Dietz | Energy plant or power plant with low-contact, non-contact and / or magnetically mounted shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105465175A (en) | 2016-04-06 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200414 Address after: 423, floor 4, block a, Xinhua future city building, No. 175, Litang Road, Changping District, Beijing 102200 Patentee after: Li Qiannan Address before: Creek Town Fengming road Zhenhai District 315200 Zhejiang city of Ningbo province No. 666 Patentee before: NINGBO DAFEN SEIKO BEARING Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200428 Address after: 057750 bearing Creative Industry Park, Guantao County, Handan City, Hebei Province Patentee after: HEBEI YACHAO BEARING GROUP Co.,Ltd. Address before: 423, floor 4, block a, Xinhua future city building, No. 175, Litang Road, Changping District, Beijing 102200 Patentee before: Li Qiannan |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231023 Address after: 057750 west of Xiaocun village, Weisengzhai Town, Guantao County, Handan City, Hebei Province Patentee after: Guantao Zhenxin Bearing Co.,Ltd. Address before: 057750 bearing Creative Industry Park, Guantao County, Handan City, Hebei Province Patentee before: HEBEI YACHAO BEARING GROUP CO.,LTD. |