CN103582992A - Novel small pole difference magnetic field coupling type eccentric magnetic gear pair with radial magnetic field - Google Patents

Novel small pole difference magnetic field coupling type eccentric magnetic gear pair with radial magnetic field Download PDF

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CN103582992A
CN103582992A CN201280022553.6A CN201280022553A CN103582992A CN 103582992 A CN103582992 A CN 103582992A CN 201280022553 A CN201280022553 A CN 201280022553A CN 103582992 A CN103582992 A CN 103582992A
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magnetic field
eccentric
stator
magnetic
permanent magnet
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卢敏
余虹锦
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
    • H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Retarders (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

Provided is a novel small pole difference magnetic field coupling type eccentric magnetic gear pair with radial magnetic field, which can be widely applied in industrial transmission fields such as wind power generation, electric automobiles, or ship drive, etc., and which is characterized in that a magnetic transmission gear pair is formed by a stator having 2 ps stator permanent magnets (1) distributed in an inner hole of a stator casing (6) and a planetary rotor having 2 pr rotor permanent magnets (2) distributed on an outer circumference of a planetary rotor iron core (5). There is a relatively small difference between the numbers of pole pairs ps and pr and the numbers are relatively prime. The permanent magnets on the magnetic gear pair are coupled through a radially eccentric air gap magnetic field, and the stator and the planetary rotor with small pole difference are connected to form an eccentric structure via an eccentric input shaft (3) sheathed inside a second bearing (12) and a third bearing (13). The eccentric input shaft (3) drives the planetary rotor iron core (5) in rotation around an axis of rotation. The eccentrically rotating planetary rotor permanent magnets (2) and the stator permanent magnets (1) drive the planetary rotor to rotate around its own axis in the reverse direction by means of radial magnetic field coupling, and output low-speed self-rotation of the planetary rotor via a hole pin output structure (7).

Description

Novel small pole difference magnetic field coupling type eccentric magnetic gear pair with radial magnetic field
The eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field
Technical field
The present invention is a kind of eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field, it is that the variable speed drive that the small torque mechanical energy of high rotating speed is mutually changed with slow-speed of revolution high-torque mechanical energy is realized using magnetic gear drive technology, conventional mechanical change gear transmission speed system can directly be replaced, be widely used in wind-power electricity generation, hydroelectric generation, electric automobile, ships driving and other industrial transmission fields for needing to directly drive.Background technology
Generally require to realize mutual conversion of the mechanical energy with high rotating speed Low-torque mechanical energy of slow-speed of revolution high-torque in many transmission fields of commercial Application, such as：Wind-power electricity generation and hydroelectric field need extremely low rotating speed and variable wind energy, the potential energy of water being converted into high-revolving generating mechanical kinetic energy, electric automobile and submarine driving field need again by the high speed machine power conversion of motor into rotating speed is very low and torque very big mechanical output.By existing conventional designing technique, extremely low rotating speed and high-torque can cause motor volume huge, increase the material consumption of motor per kilowatt number and make it that quantities is huge；For this, existing known common method is that the slow-speed of revolution, the output of high-torque and the requirement of Constant-power speed range are realized by mechanic gear drive technology, the citation form of mechanical gear drive technology does not change for a long time, i.e., be driven by the engagement of the two secondary gear teeth of mechanical gear all the time.This just brings the problem of some can not be eliminated to gear drive, such as mechanical fatigue, frictional dissipation, vibrating noise, although grease lubrication technology can be used, but problem above, which remains unchanged, to be eradicated, cause working service extremely cumbersome, the mechanic gear drive system efficiency of conventional transmission ratio is low, noise is big, poor reliability.The mechanical gear auxiliary driving of fixed conveyor speed ratio causes needs complicated in the multistage of more wide speed range, stepping speed adjusting gear, it is impossible to adapt to the drive technology requirement of increasing variable speed.
China is rare earth permanent-magnetic material most abundant country in the world, and greatly developing the application of rare earth material has the meaning of reality.With the progress of control technology, rare earth permanent-magnetic material has been used widely in electric drive field, all kinds of motor products that rare earth permanent-magnetic material is made, the torque density of its unit volume material transmission is big, efficiency of energy utilization is high and energy consumption is small, shows the huge superiority of its rare earth material.In recent years, with wind-power electricity generation, the growth requirement of the new energy application field such as electric automobile, start to realize on novel magnetic drive technology to mechanically operated technological break-through both at home and abroad, Britain in 2004 and Denmark scholar propose magnetic field modulation technical know-how and its drive mechanism, and the design and model machine checking work of a kind of novel radial magnetic field modulation system magnetic gear are completed from practice, overcome the conventional less shortcoming of permanent magnet gear driving torque, this opens an important research direction and following application field to permanent-magnet material in the application of mechanical transmission fields.This magnetic gear structure based on magnetic field modulation technology has a feature, it is to be modulated using magnetic field modulation principle come the permanent-magnetic field to driving wheel and the different numbers of poles of driven pulley, specifically the method in structure is exactly to have added a magnetic conduction grid iron core with orientation fixed number between driving wheel and driven pulley to lead Magnetic pole, so as to purposefully isolate the drive of two different numbers of poles.
The magnetic gear designed above based on magnetic field modulation technology from theoretical principle to organization plan on there are two big fatal deficiencies：First, theoretically see, the magnetic conduction grid of magnetizing field modulating action pole (tooth) number unshakable in one's determination must is fulfilled for constraints, so as to cause magnetic gear to be all in the working condition of mutual magnetic coupling only less than the permanent magnet of half in any time of operating transmission, there is the permanent magnet pole of more than half to be in idle non-coupled state, i.e. the degree of coupling of rare-earth permanent magnet magnetic pole is lower than 50% in theory；Second, from structure, adding magnetic conduction grid iron core necessarily makes magnetic gear pair be provided with two air gaps, a large amount of magnetomotive force of rare-earth permanent magnet will necessarily be consumed, the permanent magnet flux in coupling operational state is necessarily caused to reduce if magnetic pole thickness is not thickeied, so as to influence transmitted level of torque；3rd, the presence unshakable in one's determination of magnetic conduction grid causes air-gap reluctance to be pulsed with magnetic potential alternation, causes torque cycle to fluctuate, and not only influences transmission accuracy, and the machine torque suffered by magnetic conduction grid iron core is big, and its structural strength is also to influence the principal element in its life-span.So, to reduce the cost of magnetic gear drive technology and further improve the torque of its transmission, the theoretical of magnetic field modulation technology must be just broken through from principle and is constrained, and jump out from structure design the structural constraint of double air gaps.The content of the invention
The problem of existing for existing machinery formula gear transmission technology and two big critical defects of magnetic transmission gear pair currently known, based on magnetic field modulation technology, the purpose of this technology invention are a kind of secondary new construction of the eccentric magnetic gear of the few extreme difference magnetic field coupling-type for providing novel radial magnetic field.The present invention basic conception be, use for reference the principle of the new planet-gear transmission of mechanical gear transmission field, the revolution that the planetary gear of eccentric structure will be inputed to couples the principle attracted with S poles heteropolarity to realize the rotation of planetary gear by permanent-magnet material N poles, planetary gear rotation is exported through export structure, it is achieved thereby that being driven without Mechanical Contact, friction free power speed changing.
Illustrate below in conjunction with Fig. 1, Fig. 2 in the secondary principles and structure feature of the eccentric magnetic gear of few extreme difference magnetic field coupling-type of this novel radial magnetic field, figure：Item 1 is stator permanent magnet, and item 2 is rotor permanent magnet, and item 3 is eccentric input shaft, item 4 is drive end bearing bracket, item 5 is planet rotor iron core, and item 6 is stator cage, and item 7 is that output mechanism is sold in hole, item 8 is output rotation dish, item 9 is bearing I, and item 10 is output shaft, and item 11 is rear end cap, item 12 is bearing I I, and item 13 is bearing Π Ι；Symbol logo in figure：N represents the permanent magnet that polarity is N, and S represents the permanent magnet that polarity is S, and α represents the eccentric throw of planet rotor iron core 5 and stator cage 6,1)8The internal diameter of stator permanent magnet 1 is represented, the external diameter of rotor permanent magnet 2, m, 7 is represented] represent the input speed and input torque of eccentric input shaft 3, η2、 Γ2The output speed and output torque of output shaft 10 are represented, the distribution number of poles of stator permanent magnet 1 is represented, 2/^ represents the distribution number of poles of rotor permanent magnet 2, and e represents the length of the minimal air gap between stator and planet rotor.It was found from Fig. 1 operation principle topological diagram, the operation principle that the eccentric magnetic gear of few extreme difference magnetic field coupling-type of novel radial magnetic field is secondary is similar with mechanical K-H-V types small teeth number difference planet gear：Eccentric input shaft 3 drives planet rotor iron core 5 around rotation Axis revolves round the sun, rotor permanent magnet 2 on the planet rotor iron core 5 of bias revolution drives planet rotor iron core 5 around the reverse rotation of own axes with stator permanent magnet 1 by magnetic coupling, then sells the double-gimbal mechanism in output mechanism 7 or figure shown in dotted line by the low speed rotation output of planet rotor iron core 5 by hole.It was found from Fig. 2 radial structure and magnetic coupling schematic diagram：First, few extreme difference magnetic coupling concept theoretically breaches the constraint of magnetic field modulation technology, magnetic conduction grid iron core is eliminated, so that the heteropolarity magnetic pole coupling area that the magnetic gear based on magnetic field modulation technology is less than 50% has been brought up to 70% or so, 75% can be reached in theory.Second, using the single-air gap magnetic field structure of radial magnetic field, the magnetic gear than magnetic field modulation technology reduces by an air gap, so as to can greatly reduce the effect of permanent magnetism body thickness under conditions of common flux is reached；3rd, single gap structure causes air-gap reluctance consecutive variations, and rotating excitation field also follows consecutive variations during operating, makes the transmission of its torque more steady, also completely eliminates mechanical gear inevitably gear return difference puzzlement because of caused by backlash and abrasion.The secondary architectural feature of the eccentric magnetic gear of few extreme difference magnetic field coupling-type of novel radial magnetic field is：
First, the eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field constitutes a pair of magnetic gear pair by the planet rotor and bias input shaft 3, bearing I I 12, bearing I II 13 that the stator of a stator permanent magnet 1 is distributed with thereon, 2/^ rotor permanent magnet 2 is distributed with thereon, radial air gap of the permanent-magnetic field of two kinds of permanent magnets through stator and planet rotor and intercouple, form the secondary radial magnetic field of magnetic gear；Number of poles difference is smaller between the distribution number of poles of stator permanent magnet 1 and the distribution number of poles 2/^ of rotor permanent magnet 2, and number of pole-pairs/and/^ are positive integer pair coprime each other, and meet following relation constraint：P&>pr, and 1 $<4；
2nd, the secondary drive end bearing bracket 4 of the eccentric magnetic gear of few extreme difference magnetic field coupling-type of novel radial magnetic field and planet rotor iron core 5 are in decentered distribution structure, and eccentric structure is connected into by being set with bearing I I 12, bearing I II 13 eccentric input shaft 3 by the magnetic gear pair of few extreme difference；Wherein, the internal diameter D of the length ^ stator permanent magnets 1 of the minimal air gap between planet rotor iron core 5 and eccentric throw α, stator and the planet rotor of stator cage 6s, rotor permanent magnet 2 outer diameter D and number of pole-pairs/and/^ meet following structural relation constraint：^^, a=-lD - D - 2e) ;3rd, drive end bearing bracket 4, rear end cap 11 and the fastening of stator cage 6 are assembled into overall structure by the eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field by bolt, in the eccentric input torque ^ of input shaft 3 and rotating speedηιInput state under, its export structure mode is divided into two kinds：One is that stator cage 6 is fixed and the rotary output force square T of output shaft 102With rotating speed/, now, the secondary transmission of magnetic gear meets constraint：==- ~ ^, ^ is reversely with each other with ^；Two be that output shaft 10 is fixed and stator, the rotary output force square T of Ps-Pr shells 62With rotating speed/, now, the secondary transmission of magnetic gear meets constraint：==_ ^, withn2
Ά «2 ps - prIt is in the same direction each other. The techno-economic effect reached using above-mentioned technical proposal：
Compared with standard machinery formula gear driving pair, the eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field of the present invention has advantage as is evident below：
1. energy-efficient, low carbon ring is protected：Due to eliminating the gear-driven contact friction of standard machinery formula, power transmission loss only includes some core loss, highest transmission efficiency can reach 96% in theory, 8% is generally improved than mechanical gear transmission, belong to high-efficiency and energy-saving type product, meet low carbon ring and protect economic traits, wide popularization and application can greatly save the energy, reduce carbon emission.
2. energy (torque) density is higher：Few extreme difference magnetic coupling technology causes the magnetic field heteropolarity degree of coupling of permanent magnet to improve many than the magnetic gear of magnetic-field modulation-type structure, the torque density for transmitting magnetic material unit volume is improved, and the torque density that this Novel series rare-earth magnetic travelling gear is transmitted is higher than 60kN.m/m3;The industrialization power transmission of high-torque is applied to for magnetic gear drive technology and precision drive field is laid a good foundation.
3. without return difference, without abrasion, reliability is high, long lifespan：Due to without Mechanical Contact abrasion, not only eliminate mechanical gear inevitably gear return difference puzzlement because of caused by backlash and abrasion, and substantially increase the lifetime limitation of transmission mechanism, for positioning accuracy request is high and there is the application value of reality in the field such as Radar Servo tracking system, industrial robot servo-actuating device of frequent rotating.
4. pollution-free, low noise：Because teeth portion engages the vibrating noise for contacting and producing when being driven in the absence of mechanical gear, and without lubricant grease, clean, without greasy dirt, dust-proof, waterproof etc., there is potential application value in army for the nuclear submarine reduction body noise of the high field of noise requirements such as term underwater navigation.
5. stable drive, overload protection：Rotating speed gearratio is constant, and the dynamic momentary stabilization degree of rotating speed is high, operates steadily；Drive connection is cut off at any time because of driving and driven wheel spike in overload, will not damage load or prime mover.
6. gearratio is big, simple in construction：Because the mechanical strength of the magnetic conduction grid iron core without magnetic field modulation magnetic gear is restricted, the gearratio of few eccentric magnetic gear of extreme difference can realize bigger gearratio；Few extreme difference magnetic coupling makes magnetic gear structure simpler, more compact.
7. easy to process, technique is simple：Without expensive mechanical gear processing and detection device, the design for also usually needing displacement to correct in design processing in the absence of mechanical gear processes cumbersome, disposable apparatus small investment, predominantly assembling work, is easy to tissue large-scale pipeline to produce.Brief description of the drawings
Fig. 1 is the operation principle topological diagram of the eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field.
Fig. 2 is the radial structure and magnetic coupling figure of the eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field.
Fig. 3 is the full profile of planar structure of the eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field.
In above figure：1. stator permanent magnet, 2. rotor permanent magnets, 3. eccentric input shafts, 4. drive end bearing brackets, 5. planet rotor iron cores, 6. stator cages, 7. holes pin output mechanism, 8. output rotation dish, 9. bearing Is, 10. output shafts, 11. rear end caps, 12. bearing I I, 13. bearing Π Ι；Symbol logo in figure：Ν represents the permanent magnet that polarity is Ν, and S represents the permanent magnet that polarity is S, and α represents the eccentric throw of planet rotor iron core 5 and drive end bearing bracket 4,1)8Represent the internal diameter of stator permanent magnet 1, represent the external diameter of rotor permanent magnet 2,7 input speeds and input torque for representing eccentric input shafts 3, η2、 Γ2The output speed and output torque of output shaft 10 are represented, the distribution number of poles of stator permanent magnet 1 is represented, 2/^ represents the distribution number of poles of rotor permanent magnet 2, and e represents the length of the minimal air gap between stator and planet rotor.Embodiment below in conjunction with the accompanying drawings and embodiment the present invention is described further：Fig. 1 is the operation principle topological diagram of the eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field, Fig. 2 is the radial structure and magnetic coupling figure of the eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field, and Fig. 3 is the full profile of planar structure of the eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field.First, understand that the secondary operation principle of the eccentric magnetic gear of few extreme difference magnetic field coupling-type of novel radial magnetic field is from Fig. 1 and Fig. 2：Eccentric input shaft 3 drives planet rotor iron core 5 to be revolved round the sun around rotation axis, rotor permanent magnet 2 on the planet rotor iron core 5 of bias revolution drives planet rotor iron core 5 around the reverse rotation of own axes with stator permanent magnet 1 by magnetic coupling, then sells the double-gimbal mechanism in output mechanism 7 or figure shown in dotted line by the low speed rotation output of planet rotor iron core 5 by hole；Fig. 2 shows the situation of the secondary permanent magnet heteropolarity coupling of magnetic gear；
It can be seen that the secondary inner structural features of the eccentric magnetic gear of few extreme difference magnetic field coupling-type of novel radial magnetic field are as follows from Fig. 2, Fig. 3：
2nd, the eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field constitutes a pair of magnetic gear pair by the planet rotor and bias input shaft 3, bearing I I 12, bearing I II 13 that the stator of a stator permanent magnet 1 is distributed with thereon, 2/^ rotor permanent magnet 2 is distributed with thereon, radial air gap of the permanent-magnetic field of two kinds of permanent magnets through stator and planet rotor and intercouple, form the secondary radial magnetic field of magnetic gear；Number of poles difference is smaller between the distribution number of poles of stator permanent magnet 1 and the distribution number of poles 2/^ of rotor permanent magnet 2, and number of pole-pairs/and/^ are positive integer pair coprime each other, and meet following relation constraint： Ps>pr, and l≤Ps-pr<4;
3rd, the secondary drive end bearing bracket 4 of the eccentric magnetic gear of few extreme difference magnetic field coupling-type of novel radial magnetic field and planet rotor iron core 5 are in decentered distribution structure, and eccentric structure is connected into by being set with bearing I I 12, bearing I II 13 eccentric input shaft 3 by the magnetic gear pair of few extreme difference；Wherein, the internal diameter D of the length ^ stator permanent magnets 1 of the minimal air gap between planet rotor iron core 5 and eccentric throw α, stator and the planet rotor of stator cage 6s, rotor permanent magnet 2 outer diameter D and number of pole-pairs/and/^ meet following structural relation constraint：^^,a = -lD - D - 2e) ;4th, the eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field by bolt by drive end bearing bracket 4, rear end cap 11 with The fastening of stator cage 6 is assembled into overall structure, in the eccentric input torque ^ of input shaft 3 and rotating speedηιInput state under, its export structure mode is divided into two kinds：One is that stator cage 6 is fixed and the rotary output force square T of output shaft 102With rotating speed η2, now, the secondary transmission of magnetic gear meets constraint：==- ~ ^ and ^ is reversely with each other；Two be output shaft 10 fix depending on, the rotary output force square T of Ps-Pr handsets shell 62With rotating speed/, now, the secondary transmission of magnetic gear meets constraint：ZL==^^,
Ά «2 ps - prWith it is in the same direction each other；5th, the architectural feature of the secondary planet rotor of the eccentric magnetic gear of few extreme difference magnetic field coupling-type of novel radial magnetic field is：Eccentric and be driving wheel around the planet rotor that center of rotation axis revolves round the sun, it is made up of 2/^ rotor permanent magnet 2, planet rotor iron core 5；The tile magnet structure of arc is made of known permanent-magnet material for rotor permanent magnet 2, and install and be anchored on the exterior arc surface of planet rotor iron core 5 in the way of N poles S interpolars are every arranged distribution, planet rotor iron core 5 is made punching shape through conventional punch process by the silicon steel plate of magnetic conduction and is welded as a whole again through laminating, and the circumference uniform distribution pin-and-hole required for the hole pin output mechanism 7 that its rotation is transformed into the rotation of the pivot of output shaft 10 is machined with the yoke position of planet rotor core 5.6th, the secondary stator of the eccentric magnetic gear of few extreme difference magnetic field coupling-type of novel radial magnetic field is characterized in：The follower for driving the eccentric planet rotor revolved round the sun rotation simultaneously is stator, and it is made up of individual stator permanent magnet 1, stator cage 6；The tile magnet structure of arc is made of known permanent-magnet material for stator permanent magnet 1, and install and be anchored on the inner arc surface of stator cage 6 in the way of N poles S interpolars are every arranged distribution, stator cage 6 is processed into by the steel pipe of magnetic conduction through conventional machine cut.Above-described is only the preferred embodiment of this technology invention; for those skilled in the art; on the premise of this technology inventive principle is not departed from; some malformations can also be made and improved and (magnetic gear of the present invention pair is such as subjected to the series connection of multipole d-axis and may make up Multi-stage speed-changing drive system); these should also be considered as the protection domain of this technology invention, these effects and practicality for implementing all without influence this technology invention.

Claims (3)

  1. Claims
    1. the eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field, it is characterized in that：
    The eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field by being distributed with 2p thereonsThe stator of individual stator permanent magnet (1), the planet rotor that 2/^ rotor permanent magnet (2) is distributed with thereon and eccentric input shaft (3), bearing 11 (12), bearing 111 (13) constitute a pair of magnetic gear pair, radial air gap of the permanent-magnetic field of two kinds of permanent magnets through stator and planet rotor and intercouple, form the secondary radial magnetic field of magnetic gear；Number of poles difference is smaller between the distribution number of poles of stator permanent magnet (1) and the distribution number of poles 2/^ of rotor permanent magnet (2), and number of pole-pairs/and/^ are positive integer pair coprime each other, and meet following relation constraint： p pr, and l≤ps-pr<4 ;
    The secondary drive end bearing bracket (4) of the eccentric magnetic gear of few extreme difference magnetic field coupling-type of novel radial magnetic field and planet rotor iron core (5) are in decentered distribution structure, and eccentric structure is connected into by being set with the eccentric input shaft (3) of bearing 11 (12), bearing 111 (13) by the magnetic gear pair of few extreme difference；Wherein, the length e of the minimal air gap between eccentric throw a, stator and the planet rotor of planet rotor iron core (5) and stator cage (6), the internal diameter D of stator permanent magnet (1)s, rotor permanent magnet (2) outer diameter DrAnd number of pole-pairs/and/^ meet following structural relation constraint：^=, a=^ x (D-D -2e);Drive end bearing bracket (4), rear end cap (11) and stator cage (6) fastening are assembled into overall structure by the eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field by bolt, under the input state of eccentric input shaft (3) input torque Ti and rotating speed, its export structure mode is divided into two kinds：One is that stator cage (6) is fixed and output shaft (10) rotary output force square T2With rotating speed η2, now, the secondary transmission of magnetic gear meets constraint：==- _ ^ with it is reversely with each other；Two be output shaft (10), Ps ~ Pr
    Fix and stator cage (6) rotary output force square T2With rotating speed η2, now, the secondary transmission of magnetic gear meets constraint： I= H = ^ , WlWithW2It is in the same direction each other.
    T、 n2 ps - pr
    2. a kind of eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field according to claim 1, it is characterized in that：Eccentric and be driving wheel around the planet rotor that center of rotation axis revolves round the sun, it is made up of individual rotor permanent magnet (2), planet rotor iron core (5)；The tile magnet structure of arc is made of known permanent-magnet material for rotor permanent magnet (2), and install and be anchored on the exterior arc surface of planet rotor iron core (5) in the way of N poles S interpolars are every arranged distribution, planet rotor iron core (5) is made punching shape through conventional punch process by the silicon steel plate of magnetic conduction and is welded as a whole again through laminating, and the circumference uniform distribution pin-and-hole being transformed into its rotation required for the hole pin output mechanism (7) of output shaft (10) pivot rotation is machined with the yoke position of planet rotor core (5).
    3. a kind of eccentric magnetic gear pair of few extreme difference magnetic field coupling-type of novel radial magnetic field according to claim 1, its feature It is：The follower for driving the eccentric planet rotor revolved round the sun rotation simultaneously is stator, and it is made up of individual stator permanent magnet (1), stator cage (6)；The tile magnet structure of arc is made of known permanent-magnet material for stator permanent magnet (1), and install and be anchored on the inner arc surface of stator cage (6) in the way of N poles S interpolars are every arranged distribution, stator cage (6) is processed into by the steel pipe of magnetic conduction through conventional machine cut.
CN201280022553.6A 2012-03-17 2012-03-17 Novel small pole difference magnetic field coupling type eccentric magnetic gear pair with radial magnetic field Pending CN103582992A (en)

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CN109039013A (en) * 2018-09-27 2018-12-18 深圳超磁机器人科技有限公司 A kind of double pendulum wheel radial structure magnetic energy speed reducer
CN109039013B (en) * 2018-09-27 2023-06-20 深圳超磁机器人科技有限公司 Magnetic energy speed reducer with double-swing-wheel radial structure
CN111308343A (en) * 2020-03-18 2020-06-19 华北电力大学（保定） Dynamic model experiment machine set for simulating axial-radial three-dimensional air gap mixed eccentric fault
CN111308343B (en) * 2020-03-18 2022-06-17 华北电力大学（保定） Dynamic model experiment machine set for simulating axial-radial three-dimensional air gap mixed eccentric fault

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