CN105508425B - A kind of self-power generation type magnetic bearing - Google Patents

A kind of self-power generation type magnetic bearing Download PDF

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Publication number
CN105508425B
CN105508425B CN201510995318.2A CN201510995318A CN105508425B CN 105508425 B CN105508425 B CN 105508425B CN 201510995318 A CN201510995318 A CN 201510995318A CN 105508425 B CN105508425 B CN 105508425B
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CN
China
Prior art keywords
magnetic bearing
stator
generating equipment
bearing
self
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Application number
CN201510995318.2A
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Chinese (zh)
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CN105508425A (en
Inventor
王彭考
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guantao Luohan Bearing Manufacturing Co ltd
Original Assignee
Ningbo Reaches Puts Forth Energy Seiko Bearing Co Ltd
Priority date (The priority date 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 date listed.)
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Application filed by Ningbo Reaches Puts Forth Energy Seiko Bearing Co Ltd filed Critical Ningbo Reaches Puts Forth Energy Seiko Bearing Co Ltd
Priority to CN201510995318.2A priority Critical patent/CN105508425B/en
Publication of CN105508425A publication Critical patent/CN105508425A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00Bearings not otherwise provided for
    • F16C32/04Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406Magnetic bearings
    • F16C32/044Active magnetic bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00Bearings not otherwise provided for
    • F16C32/04Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406Magnetic bearings
    • F16C32/044Active magnetic bearings
    • F16C32/0444Details of devices to control the actuation of the electromagnets
    • F16C32/0451Details of controllers, i.e. the units determining the power to be supplied, e.g. comparing elements, feedback arrangements with P.I.D. control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00Bearings not otherwise provided for
    • F16C32/04Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406Magnetic bearings
    • F16C32/044Active magnetic bearings
    • F16C32/0444Details of devices to control the actuation of the electromagnets
    • F16C32/0457Details of the power supply to the electromagnets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C37/00Cooling of bearings
    • F16C37/005Cooling of bearings of magnetic bearings

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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

A kind of self-power generation type 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, several circular passages are provided with stator, there is cooler bin in the circular passage external world, is flowed in circular passage and is provided with coolant.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

A kind of self-power generation type magnetic bearing
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 self-power generation type 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 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 directly allows motor guarantor to scrap.
The content of the invention
The present invention is directed to deficiency of the prior art, there is provided a kind of self-power generation type magnetic bearing, this magnetic bearing pass through axle It is that coil power supply causes magnetic bearing and axle to produce magnetic suspension effect that rotation, which obtains 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 self-power generation type magnetic axis Hold, including bearing main body, uniform circular is provided with several iron cores in described bearing main body, and electricity is wound with described iron core Magnetic coil, described bearing main body are externally provided with generating equipment, the described magnet coil of described generating equipment connection, described hair Electric equipment includes needing to be set in the stator on main shaft, and some groups of stator winding are evenly arranged with described stator, described The permanent magnet being engaged with the stator winding is provided with main shaft, several circular passages, institute are provided with described stator There is cooler bin in the circular passage external world stated, is flowed in described circular passage and is provided with coolant.
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 Stator is overheated, and circular passage is also additionally provided with stator, and water-cooling is carried out by coolant in circular passage, keeps fixed Sub- 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 self-power generation type magnetic bearing, including bearing main body(1), described bearing main body(1)If interior 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 stator(31)Inside it is provided with several Circular passage(91), described circular passage(91)It is circumscribed with cooler bin(9), described circular passage(91)Interior flowing is provided with Coolant.
2. a kind of self-power generation type magnetic bearing according to claim 1, it is characterized in that, in addition to controller(7), power adjusting Device.
3. a kind of self-power generation type magnetic bearing according to claim 2, it is characterized in that, described bearing main body(1)Upper setting There is the connection controller(7)Displacement transducer.
4. a kind of self-power generation type magnetic bearing according to claim 1, it is characterized in that, described generating equipment(3)Also include Voltage-stablizer and frequency modulator.
5. a kind of self-power generation type magnetic bearing according to claim 1, it is characterized in that, described stator(31)Bottom is provided with Keep support(39).
6. a kind of self-power generation type magnetic bearing according to claim 1, it is characterized in that, described generating equipment(3)With it is described Magnet coil between be provided with non-firm power connecting line(6).
7. a kind of self-power generation type magnetic bearing according to claim 1, it is characterized in that, described generating equipment(3)Also include Storage battery.
CN201510995318.2A 2015-12-28 2015-12-28 A kind of self-power generation type magnetic bearing Active CN105508425B (en)

Priority Applications (1)

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CN201510995318.2A CN105508425B (en) 2015-12-28 2015-12-28 A kind of self-power generation type magnetic bearing

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Application Number Priority Date Filing Date Title
CN201510995318.2A CN105508425B (en) 2015-12-28 2015-12-28 A kind of self-power generation type magnetic bearing

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CN105508425A CN105508425A (en) 2016-04-20
CN105508425B true CN105508425B (en) 2018-03-09

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109854622B (en) * 2019-03-26 2020-04-28 中国船舶科学研究中心(中国船舶重工集团公司第七0二研究所) Active magnetic bearing system capable of controlling axial system radial vibration based on intelligent material

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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
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

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Effective date of registration: 20200415

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: 20200427

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

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20230828

Address after: North of Xiaocun Village, Weisengzhai Town, Guantao County, Handan City, Hebei Province, 057750

Patentee after: Guantao Luohan 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.