CN105422623B - Self-power generation type magnetic bearing - Google Patents
Self-power generation type magnetic bearing Download PDFInfo
- Publication number
- CN105422623B CN105422623B CN201510995313.XA CN201510995313A CN105422623B CN 105422623 B CN105422623 B CN 105422623B CN 201510995313 A CN201510995313 A CN 201510995313A CN 105422623 B CN105422623 B CN 105422623B
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- Prior art keywords
- coil
- magnetic bearing
- generating equipment
- bearing
- self
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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
- F16C32/044—Active magnetic bearings
- F16C32/0444—Details of devices to control the actuation of the electromagnets
- F16C32/0451—Details of controllers, i.e. the units determining the power to be supplied, e.g. comparing elements, feedback arrangements with P.I.D. control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0459—Details of the magnetic circuit
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Self-power generation type magnetic bearing, it is related to a kind of bearing, including bearing main body, several iron cores are provided with 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, stator winding is evenly arranged with stator, the permanent magnet being engaged with the stator winding is provided with main shaft, magnet coil on the same iron core is divided into A groups coil and B group coils, A groups coil and B groups coil connect described generating equipment respectively, A groups coil is identical with B group coil turns and the sense of current is also identical.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 self-power generation type magnetic bearing needs to be powered, once power failure will allow magnetic to disappear, the axle at this moment rotated at a high speed
It can not just be suspended in magnetic bearing, moment friction increase is so very easy that axle is caused to damage, and more serious meeting allows axle fracture
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 self-power generation type 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 obtain electric power, and allowing axle, magnetic bearing also works all the time at work,
Once avoid magnetic bearing power-off when conventional magnetic bearing and axle adhere to two sets of electric power systems separately can make the axle damage that rotates at a high speed and
The problem of fracture jeopardizes motor.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：Self-power generation type magnetic bearing, bag
Bearing main body is included, uniform circular is provided with several iron cores in described bearing main body, and electromagnetic wire is wound with described iron core
Circle, described bearing main body are externally provided with generating equipment, the described magnet coil of described generating equipment connection, and described generating is set
It is standby to include needing to be set in the stator on main shaft, it is evenly arranged with some groups of stator winding, described main shaft on described stator
On be provided with the permanent magnet being engaged with the stator winding, the magnet coil on the same iron core is divided into A groups coil and B
Group coil, the A groups coil and the B groups coil connect described generating equipment, the A groups coil and the B groups line respectively
The circle number of turn is identical and the sense of current is also identical.
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.Simultaneously for magnetic axis
Accepting insurance, it is fixed to keep steady, and coil is also divided into two parts, and per generating equipment is partly respectively coupled, such two sets of coils can be with maximum journey
Ensure magnetic bearing normal operation on degree.
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. self-power generation type magnetic bearing, including bearing main body（1）, described bearing main body（1）Interior uniform circular is provided with several
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 set in master
Axle（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）, in the same iron core（11）On magnet coil point
For A group coils（12）With B group coils（13）, the A groups coil（12）With the B groups coil（13）Described generating is connected respectively
Equipment（3）, the A groups coil（12）With the B groups coil（13）The number of turn is identical and the sense of current is also identical.
2. self-power generation type magnetic bearing according to claim 1, it is characterized in that, in addition to controller（7）, power governor.
3. self-power generation type magnetic bearing according to claim 2, it is characterized in that, described bearing main body（1）On the company of being provided with
Connect the controller（7）Displacement transducer.
4. self-power generation type magnetic bearing according to claim 1, it is characterized in that, described generating equipment（3）Also include voltage stabilizing
Device and frequency modulator.
5. self-power generation type magnetic bearing according to claim 1, it is characterized in that, described stator（31）Bottom is provided with holding
Support（39）.
6. self-power generation type magnetic bearing according to claim 1, it is characterized in that, described generating equipment（3）With described electricity
Non-firm power connecting line is provided between magnetic coil（6）.
7. self-power generation type magnetic bearing according to claim 1, it is characterized in that, described generating equipment（3）Also include storage
Battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995313.XA CN105422623B (en) | 2015-12-28 | 2015-12-28 | Self-power generation type magnetic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995313.XA CN105422623B (en) | 2015-12-28 | 2015-12-28 | Self-power generation type magnetic bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422623A CN105422623A (en) | 2016-03-23 |
| CN105422623B true CN105422623B (en) | 2018-03-09 |
Family
ID=55501076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510995313.XA Active CN105422623B (en) | 2015-12-28 | 2015-12-28 | Self-power generation type magnetic bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422623B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2213465C3 (en) * | 1972-03-20 | 1986-02-13 | Padana AG, Zug | Electromagnetic bearing element |
| JPS5950220A (en) * | 1982-09-14 | 1984-03-23 | Natl Aerospace Lab | Multi-spindle control type magnetic bearing |
| JPH01182620A (en) * | 1988-01-12 | 1989-07-20 | Nippon Telegr & Teleph Corp <Ntt> | Magnetic bearing |
| JPH03255221A (en) * | 1990-02-28 | 1991-11-14 | Shimadzu Corp | Drive supporting mechanism of rotating body |
| US7471022B2 (en) * | 2006-09-22 | 2008-12-30 | Sortore Christopher K | Magnetic bearing |
| CN201466812U (en) * | 2009-08-25 | 2010-05-12 | 中国人民解放军军事交通学院 | Horizontal axial rotating part electronic power supply device |
| 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 suspension flywheel battery device |
| AT512040B1 (en) * | 2011-10-27 | 2013-05-15 | Linz Ct Of Mechatronics Gmbh | ELECTRICAL MACHINE, ESPECIALLY BRUSHLESS TORQUE MOTOR |
| EP2677177B1 (en) * | 2012-06-22 | 2020-10-14 | Skf Magnetic Mechatronics | Electric centrifugal compressor for vehicles |
| CN202833649U (en) * | 2012-09-27 | 2013-03-27 | 路斯特传动系统(上海)有限公司 | Magnetic levitation bearing |
| CN103216527A (en) * | 2013-03-15 | 2013-07-24 | 浙江大学 | Magnetic bearing based on radial rejection and application thereof |
| CN103490572B (en) * | 2013-05-28 | 2016-08-24 | 南京航空航天大学 | A kind of three-degree-of-freemagnetic magnetic suspension switch reluctance motor |
-
2015
- 2015-12-28 CN CN201510995313.XA patent/CN105422623B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105422623A (en) | 2016-03-23 |
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Legal Events
| 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. |
|
| 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: 20231005 Address after: 057750 South side of Bearing Avenue, Bearing Creative Industry Park, Guantao County, Handan City, Hebei Province Patentee after: Hebei Jiangbei Bearing Manufacturing Co.,Ltd. Address before: 057750 bearing Creative Industry Park, Guantao County, Handan City, Hebei Province Patentee before: HEBEI YACHAO BEARING GROUP CO.,LTD. |