CN202602516U - Poor pole difference magnetic guidable harmonic wave type magnetic gear pair of radial magnetic field - Google Patents
Poor pole difference magnetic guidable harmonic wave type magnetic gear pair of radial magnetic field Download PDFInfo
- Publication number
- CN202602516U CN202602516U CN2012201397058U CN201220139705U CN202602516U CN 202602516 U CN202602516 U CN 202602516U CN 2012201397058 U CN2012201397058 U CN 2012201397058U CN 201220139705 U CN201220139705 U CN 201220139705U CN 202602516 U CN202602516 U CN 202602516U
- Authority
- CN
- China
- Prior art keywords
- rotor
- magnetic
- wave
- salient pole
- stator
- Prior art date
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
A poor pole difference magnetic guidable harmonic wave type magnetic gear pair of a radial magnetic field can be widely applied in the industrial transmission fields of wind power generation, electric automobile and ship driving, etc. The poor pole difference magnetic guidable harmonic wave type magnetic gear pair of a radial magnetic field is characterized by comprising a permanent magnet stator including a stator core 6 and 2ps stator permanent magnets 7, a permanent magnet rotor equipped with 2pr rotor permanent magnets 8 and a salient pole type magnetic guidable wave rotor 5 possessing Zb salient pole wave number. Pole pairs ps and pr are positive integers which are prime to each other; the permanent magnet stator, the permanent magnet rotor and the salient pole type magnetic guidable wave rotor 5 are coaxially arranged and are mutually coupled through the radial air gap magnetic field; and the salient pole type magnetic guidable wave rotor 5 and a salient pole straight axial area are mutually coupled according to the principle that heteropolar magnetic fields with poor pole difference are attracted to each other, thereby the poor pole difference magnetic gear pair can rotate at a low speed, and speed-change torque-change transmission without mechanical contact or friction is achieved.
Description
Technical field
The present invention is that a kind of few extreme difference magnetic conductance harmonic wave formula magnetic gear of radial magnetic field is secondary; Be to utilize the harmonic wave formula magnetic gear drive technology of the magnetic conductance alternation of few extreme difference principle structure to realize the variable speed drive that little moment mechanical energy of high rotating speed and the big moment mechanical energy of the slow-speed of revolution are changed each other; Can directly replace conventional mechanical type Harmonic Gears speed change system, be widely used in the industrial transmission field that industrial robot servo-drive, wind power generation, hydroelectric power generation, electric automobile, ships driving and other needs directly drive.
Background technology
Often need realize the mutual conversion of the mechanical energy and the low moment mechanical energy of high rotating speed of the big moment of the slow-speed of revolution at many transmission fields of commercial Application; Need become high-revolving generating to use mechanical kinetic energy the utmost point slow-speed of revolution and variable wind energy, the potential energy converting and energy of water such as: wind power generation and hydroelectric power generation field; Electric automobile and submarine drive the field need become the high speed machine Power Conversion of prime mover the very low and very big mechanical output of moment of rotating speed, a large amount of high-precision servo deceleration mechanisms that use in industrial robot, radar tracking system and machine tooling center again.By existing conventional designing technique, the utmost point slow-speed of revolution can make that with big moment motor volume is huge, increases the material consumption of motor per kilowatt number and makes quantities huge; For this reason; Existing known common method is to realize the slow-speed of revolution, the output of big moment and the requirement of constant-power speed regulation scope by the mechanic gear drive technology; Gear with small teeth difference drive technology harmonic gear transmission technology is the first-selection of big retarding than transmission for a long time; Few tooth difference transmission has caused a series of problems such as the machining accuracy of rotation output mechanism, noise, efficient, vibrations many because of off-centre; And harmonic drive is drawn the reliability and the life-span challenge of drive system because of the intensity of the alternately distortion of flexbile gear, rigidity, fatigue, and driving torque, power and input speed, transmission efficiency are difficult to raising always.
China is the abundantest country of rare earth permanent-magnetic material in the world, and the application of greatly developing rare earth material has realistic meanings.Progress along with control technology; Rare earth permanent-magnetic material drives the field at electricity and is used widely, all kinds of motor products that rare earth permanent-magnetic material is made, and the torque density that its unit volume material transmits is big; Efficiency of energy utilization height and energy consumption is little demonstrates the huge superiority of its rare earth material.In recent years; Growth requirement along with new forms of energy applications such as wind power generation, electric automobiles; Begin both at home and abroad on the novel magnetic drive technology, to realize to mechanically operated technological break-through; Britain in 2004 and Denmark scholar have proposed magnetic field modulation technical know-how and drive mechanism thereof; And, having overcome the less shortcoming of permanent magnet gear driving torque in the past from putting into practice design and the model machine checking work of having accomplished a kind of novel radial magnetic field modulation system magnetic gear, this has opened up an important research direction and following application in the application of mechanical transmission fields for permanent magnetic material.This magnetic gear structure based on the magnetic field modulation technology has characteristics; Promptly be to adopt the magnetic field modulation principle to come the permanent-magnetic field of the different numbers of poles of the driven pulley of the driving wheel of few number of poles and multipole number is modulated; Concrete method structurally is exactly between driving wheel and driven pulley, to have added a magnetic conduction grid iron core with directed fixed number to do leading pole, thereby on purpose isolates the drive of two different numbers of poles.Because the existence of magnetic conduction grid iron core makes air-gap reluctance and magnetic potential alternation pulse; Cause the torque cyclic fluctuation; Not only influence transmission accuracy, and the suffered machine torque of the big more magnetic conduction grid of gearratio iron core is also big more, its structural strength also is the principal element that influences its life-span.Therefore, improve the grid toothing of magnetic conduction grid iron core and to reduce grid number of teeth amount be to improve its mechanical strength and the key link in life-span.
In the recent period; One of this case inventor also proposed novel horizontal and manifold type eccentric magnetic gear in few extreme difference magnetic field radial magnetic field secondary (201110277432.3,201120350893.4 and 201110355864.1,201120444409.4); This magnetic gear pair is that the permanent-magnetic field that utilizes two kinds of different numbers of poles on two transmission wheel sets interacts, intercoupling reaches the purpose of carry-over moment and speed change transmission; But the notion of the two permanent magnetism coupling of this few extreme difference speed change; Owing to must take off-centre on its structure, add again the powerful permanent-magnetic field of rare earth material increased bearing radially, axial load, and because off-centre causes output mechanism is complicated, inefficiency; Processing and assembly difficulty have also been increased on the technology; More insupportable is the rigidity vibrations that eccentric structure causes system, is difficult to adapt to the high rotating speed operation of reducing gear, has limited its range of application.All also having no talent both at home and abroad up to now proposed to utilize few extreme difference principle and combined mechanical Harmonic Gears know-why to improve the secondary eccentric structure of few extreme difference magnetic gear, and such technical research and structure invention have important practical significance for practical applications.
Summary of the invention
At first, come the know-why of the mechanical type Harmonic Gears of analysis conventional by Fig. 1, Fig. 2, among the figure: 1 be power shaft, and 16 have just taken turns for stator, and item 17 is a flexible rotator, and item 18 is a ripple generation runner; Symbol logo among the figure: n
1, n
2Expression input speed, output speed, Z
sThe stator of expression mechanical type harmonic gear is the interior number of teeth of wheel 16 just, Z
2The outer number of teeth of the flexible rotator 17 of expression mechanical type harmonic gear, b
nThe wave number of the ripple generation runner 18 of expression mechanical type harmonic gear.When pack into the interior bowlder of flexible rotator 17 of ripple generation runner 18, force flexible rotator 17 to produce strains, make the gear teeth of its major axis place flexible rotator insert stator just in the wheel teeth groove of wheel 16, become complete engagement; And its minor axis place two-wheeled gear teeth do not contact fully, are in disengaged condition; Nibble out or engaging-in state by then being between the process that is engaged to disengagement.When ripple generation runner 18 rotates continuously; Force flexible rotator 17 constantly to produce distortion; Make the two-wheeled gear teeth in carrying out engaging-in, the process that meshes, nibble out, throw off, constantly change operating state separately; Produce the motion of so-called side set, thereby realized the Motion Transmission of initiatively 17 of ripple generation runner 18 and passive flexible rotators.Side set is the reason that motion produces in the Harmonic Gears, and stator has just been taken turns 16 interior tooth number Z
sOuter number of teeth Z with flexible rotator 17
2Number of teeth difference is very little, its number of teeth difference Z
s-Z
2=± b
nDetermined when ripple generation runner 18 circles flexible rotator 17 distortion and the number of stator steel wheel while mesh regional, i.e. wave number; Many at present with double wave and three ripple transmissions.Fig. 1 is b for wave number
n=+2 mechanical type harmonic gear double wave transmission principle figure, Fig. 2 is b for wave number
n=+3 mechanical type harmonic gear three ripple transmission principle figure; Under the condition of flexible rotator 17 rotation outputs shown in the figure, its gearratio is:
n
1÷n
2=?-?Z
2÷(Z
s-?Z
2)=?-?Z
2÷(±b
n)?。
According to the principle of above-mentioned mechanical type Harmonic Gears technology, but the purpose of present technique invention is to provide a kind of secondary new construction of few extreme difference magnetic conductance harmonic wave formula magnetic gear of radial magnetic field of air gap flux density ripple alternate.Basic design of the present invention is; Use for reference the principle of two transmission wheel set side sets motion in the mechanical type Harmonic Gears; And also periodically the saliency of alternation is theoretical with handing over direction of principal axis to cause the air gap flux density ripple because of air-gap permeance changes at d-axis to combine the salient pole type synchronous motor air-gap field; The salient pole type magnetic conductance wave rotor replacement that ripple generation runner 18 usefulness of Harmonic Gears high speed is had the magnetic conductance saliency; Replace the internal tooth of the firm wheel 16 of stator and the external tooth on the flexible rotator 17 with rare-earth permanent magnet N, S magnetic pole; Salient pole type magnetic conductance wave rotor and have between the flexible rotator of magnetic pole, all have air gap between the stator of flexible rotator and band magnetic pole, the coaxial mounting structure of three is coupled through radial air gap magnetic field to each other; The number of magnetic poles of stator and rotor forms fixing few extreme difference; The principle of the heteropolarity magnetic field suction through few extreme difference intercouples in the salient pole d-axis zone of the salient pole type magnetic conductance wave rotor of high speed rotating, drives the secondary low speed rotation of magnetic gear of few extreme difference, thereby realizes not having machinery contact, the transmission of friction free power speed changing bending moment.
Below in conjunction with Fig. 3, Fig. 4 and Fig. 5 the secondary operation principle and the architectural feature of few extreme difference magnetic conductance harmonic wave formula magnetic gear of this radial magnetic field is described, among the figure: 1 be power shaft, and 2 is bearing I, and item 3 is a front end housing; Item 4 is bearing I I, and item 5 is a salient pole type magnetic conductance wave rotor, and item 6 is a stator core; Item 7 is a stator permanent magnet, and item 8 is a rotor permanent magnet, and item 9 is a rotor core; Item 10 is the wave rotor end cap, and item 11 is bearing I II, and item 12 is bearing I V; Item 13 is a rear end cap, and item 14 is an output shaft, and item 15 is a bolt; Symbol logo among the figure: N representes that polarity is the permanent magnet of N, and S representes that polarity is the permanent magnet of S, n
1, T
1The input speed and the input torque of expression power shaft 1, n
2, T
2The output speed of output shaft 14 and output torque, 2p
sThe distribution number of poles of expression stator permanent magnet 7,2p
rThe distribution number of poles of expression rotor permanent magnet 8, Z
bThe salient pole wave number of expression salient pole type magnetic conductance wave rotor 5, d representes the salient pole d-axis of salient pole type magnetic conductance wave rotor 5, q representes the friendship axle between the salient pole of salient pole type magnetic conductance wave rotor 5, B
BdThe air gap flux density ripple of expression salient pole d-axis d direction, B
BqHand over the air gap flux density ripple of axle q direction between the expression salient pole.Fig. 3 is the double wave transmission operation principle topological diagram of the harmonic wave magnetic gear pair of interior magnetic conductance wave rotor structure; Fig. 4 is the double wave transmission operation principle topological diagram of the harmonic wave magnetic gear pair of outer magnetic conductance wave rotor structure; Fig. 5 is that few extreme difference magnetic conductance harmonic wave formula magnetic gear countershaft of outer magnetic conductance wave rotor structure is to the full profile of structure.
Can know from Fig. 3, Fig. 4; The few tooth difference Harmonic Gears of operation principle that few extreme difference magnetic conductance harmonic wave formula magnetic gear of radial magnetic field is secondary and mechanical type is similar: during work; Power shaft 1 drives salient pole type magnetic conductance wave rotor 5 around the axis high speed rotating; The stator permanent magnet 7, rotor permanent magnet 8 that orders about salient pole d-axis d direction is by the heteropolarity coupling principle that attracts each other, according to the axial d-axis air gap flux density of d ripple B
BdAuto arrangement is integrated; Form maximum, the magnetic-coupled attraction state of the close heteropolarity the highest, that gravitation is the strongest of d-axis magnetic of the axial salient pole magnetic conductance of d; Owing to few extreme difference reason fixing between permanent-magnet stator and p-m rotor, and make the q direction of principal axis just in time be in air reluctance maximum, the close minimum B of friendship axle magnetic
BdThe same polarity magnetic repulsion state of ≈ 0; To Fig. 3, double wave transmission shown in Figure 4, salient pole type magnetic conductance wave rotor 5 p-m rotor that whenever rotates a circle then oppositely turns over 2Z
bThe magnetic pole angle of individual p-m rotor, thereby the speed change transmission of realization power.
Can know that from Fig. 3, Fig. 4 and Fig. 5 the secondary architectural feature of few extreme difference magnetic conductance harmonic wave formula magnetic gear of radial magnetic field is:
One, by having 2p
sThe permanent-magnet stator of individual stator permanent magnet 7 and have 2p
rThe p-m rotor of individual rotor permanent magnet 8 and have Z
bIt is secondary that the salient pole type magnetic conductance wave rotor 5 of individual salient pole wave number constitutes magnetic conductance harmonic wave formula magnetic gear, the distributed pole logarithm p of stator permanent magnet 7
sDistributed pole logarithm p with rotor permanent magnet 8
rFor coprime each other positive integer is right, and satisfy following relation constraint: ︱ p
s-p
r︱=︱ Z
b︱; Z
b=± 2 is the double wave kind of drive, Z
b=± 3 is the three ripple kinds of drive, Z
b=± 4 is the four ripple kinds of drive;
Two, be the concentric type distributed architecture between permanent-magnet stator, p-m rotor and salient pole type magnetic conductance wave rotor 5 threes of few extreme difference magnetic conductance harmonic wave formula magnetic gear pair of radial magnetic field; There is air gap to each other and is coupled through radial air gap magnetic field; Power shaft 1 is fastenedly connected with salient pole type magnetic conductance wave rotor 5; Front end is connected with prime mover after bearing I 2, front end housing 3 positioning and fixing, and the rear end is connected with output shaft 14 after bearing I II 11, wave rotor end cap 10 positioning and fixing; Output shaft 14 is fastenedly connected with the rotor core 9 of p-m rotor, and after bearing I V 12, rear end cap 13 positioning and fixing, is connected with load; Stator core 6 mounting arrangements of permanent-magnet stator are in the outermost layer of two rotors, and two rotors are divided into two kinds of versions at fit on: the first, and the built-in wave rotor structure of salient pole type magnetic conductance wave rotor 5 within p-m rotor, the rotor wave number Z of this structure
bThe magnetic conduction number of poles that equals to protrude; The second, the external wave rotor structure of salient pole type magnetic conductance wave rotor 5 outside p-m rotor, the leading pole of this structure adopts hollow claw-pole structure, its rotor wave number Z
bEqual the magnetic conduction number of poles of the hollow pawl utmost point;
Three, the secondary driving wheel of few extreme difference magnetic conductance harmonic wave formula magnetic gear of radial magnetic field is a salient pole type magnetic conductance wave rotor 5, and driven pulley is a p-m rotor, at input torque T
1And rotation speed n
1Input state under, its output movement mode is divided into: the first, permanent-magnet stator is fixed and p-m rotor and output shaft 14 rotation output torque T
2And rotation speed n
2, at this moment, constraint: T is satisfied in the secondary output transmission of magnetic gear
2÷ T
1=n
1÷ n
2=-p
r÷ (p
s-p
r); The second, p-m rotor and output shaft 14 are fixed and permanent-magnet stator rotation output torque T
2And rotation speed n
2, at this moment, constraint: T is satisfied in the secondary output transmission of magnetic gear
2÷ T
1=n
1÷ n
2=p
s÷ (p
s-p
r); The direction of rotation that occurs minus negative number representation input and output in the above drive connection is opposite;
Four, the distributed architecture of the stator permanent magnet 7 of few extreme difference magnetic conductance harmonic wave formula magnetic gear pair of radial magnetic field and rotor permanent magnet 8 all adopts the form of the N utmost point, the adjacent arrangement in twos of S utmost point heteropolarity to install; Dual mode is arranged: first on the mounting structure; Permanent magnet is installed on the face magnetic-type structure on iron core surface; The second, permanent magnet is installed on the built-in type structure in the iron core slot;
Five, the air gap form between permanent-magnet stator, p-m rotor and salient pole type magnetic conductance wave rotor 5 threes of few extreme difference magnetic conductance harmonic wave formula magnetic gear pair of radial magnetic field is divided into: first; The continuous cambered surface even air gap structure of concentric type; The inside and outside circle that is circle, p-m rotor cylindrical and salient pole type magnetic conductance wave rotor 5 in the permanent-magnet stator is concentric circle arc plane, and all arc-shaped surface are the continuous cambered surface of not having sudden change; Second; The non-homogeneous gap structure of continuous cambered surface of eccentric arc formula; Promptly through the inside and outside circular arc of salient pole type magnetic conductance wave rotor 5 is arranged to permanent-magnet stator in the circle and the eccentric arc structure of p-m rotor cylindrical decentraction, formation improves the non-homogeneous gap structure of air gap flux density waveform; The 3rd, the non-homogeneous gap structure of the discontinuous cambered surface of zigzag that can improve transmission resolution and dynamic stationarity for slotting on circle and rotor core 9 cylindricals in the stator core 6 of permanent magnet built-in type structure, just having formed.
Adopt the techno-economic effect that technique scheme reached:
Compare with standard machinery formula gear driving pair, few extreme difference magnetic conductance harmonic wave formula magnetic gear pair of the radial magnetic field that the present invention relates to has following remarkable advantages:
1. energy-efficient, low carbon ring is protected: owing to eliminated the gear-driven contact friction of standard machinery formula; Power transmission loss only comprises some core losss, and the highest transmission efficiency can reach 98% in theory, generally improves 8% than mechanical gear transmission; Belong to the high-efficiency and energy-saving type product; Meet low carbon ring and protect economic traits, wide popularization and application can greatly be saved the energy, reduces carbon emission.
2. energy (moment) density is higher: few extreme difference magnetic field coupling technique makes the magnetic field heteropolarity degree of coupling of permanent magnet improve than the magnetic gear of magnetic field modulation formula structure; The torque density that the magnetic material unit volume is transmitted is improved, and the torque density that this serial novel rare-earth magnetic travelling gear is transmitted is higher than 100kN.m/m
3For need being applied to the industrialization power transmission and the precision drive field of big moment, the magnetic gear drive technology lays a good foundation.
3. do not have return difference, do not have wearing and tearing; Reliability is high, the life-span is long: owing to there is not machinery contact abrasion; Not only eliminated the inevitable gear return difference puzzlement that mechanical gear causes because of backlash and wearing and tearing; And because the coupling of few extreme difference magnetic field makes that the salient pole wave number of salient pole type magnetic conductance wave rotor 5 is limited; Thoroughly improved the magnetic conduction grid number of teeth structure of magnetic field modulation magnetic gear, improved the lifetime limitation of transmission mechanism greatly, there is the using value of reality in fields such as the radar servo tracking system of and frequent rotating high for positioning accuracy request, industrial robot servo-actuating device.
4. pollution-free, low noise: the noise that produces because of the engagement contact of tooth portion when not having the mechanical gear transmission; Also overcome few extreme difference magnetic gear because of the eccentric inherent shortcoming that shakes of causing; Magnetic gear need not advantages such as lubricant grease, cleaning, no greasy dirt, dustproof, waterproof in addition, requires the nuclear-powered submarine of high field such as long-term underwater navigation to reduce the body noise for noise vibration and has potential application value in army.
5. stable drive, buffering isolate, overload protection: the rotating speed gearratio is constant, and the dynamic instantaneous stability of rotating speed is high, operates steadily; When overload, cut off drive connection at any time, can not damage load or prime mover because of driving and driven wheel spike; Prime mover and load machinery, the influence of available buffer impact load have been isolated through the magnetic field coupling.
6. easy to process, technology is simple: need not expensive mechanical gear processing and checkout equipment; Do not exist mechanical gear on Design and Machining, usually to need the Design and Machining of displacement correction loaded down with trivial details yet; All manufacturing process technologies are the ripe technology in electric machine industry field; The disposable apparatus small investment is mainly assembling work, is convenient to organize large-scale pipeline production.
Description of drawings
Fig. 1 is b for wave number
n=+2 mechanical type harmonic gear double wave transmission principle figure;
Fig. 2 is b for wave number
n=+3 mechanical type harmonic gear three ripple transmission principle figure;
Fig. 3 is the double wave transmission operation principle radial topology figure of the harmonic wave magnetic gear pair of built-in wave rotor structure;
Fig. 4 is the double wave transmission operation principle radial topology figure of the harmonic wave magnetic gear pair of external wave rotor structure;
Fig. 5 is that few extreme difference magnetic conductance harmonic wave formula magnetic gear countershaft of external wave rotor structure is to the full profile of structure;
Fig. 6 is three ripple transmission operation principle topological diagrams of the harmonic wave magnetic gear pair of external wave rotor structure and built-in type permanent-magnet pole structure;
Fig. 7 is the stereochemical structure layout plan of the main drive disk assembly of harmonic wave magnetic gear pair of three ripple transmissions;
Fig. 8 is salient pole type magnetic conductance wave rotor 5 perspective view of the external wave rotor structure of harmonic wave magnetic gear pair of three ripple transmissions;
Fig. 9 is the permanent-magnet stator perspective view of the harmonic wave magnetic gear pair of built-in type permanent-magnet pole structure;
Figure 10 is the p-m rotor perspective view of the harmonic wave magnetic gear pair of built-in type permanent-magnet pole structure.
More than among the figure: item 1 is a power shaft, and item 2 is a bearing I, and item 3 is a front end housing, and item 4 is bearing I I; Item 5 is a salient pole type magnetic conductance wave rotor, and item 6 is a stator core, and item 7 is a stator permanent magnet, and item 8 is a rotor permanent magnet; Item 9 is a rotor core, and item 10 is the wave rotor end cap, and item 11 is bearing I II, and item 12 is bearing I V; Item 13 is a rear end cap, and item 14 is an output shaft, and item 15 is a bolt; Item 16 has just been taken turns for the stator of mechanical type harmonic gear, and item 17 is the flexible rotator of mechanical type harmonic gear, and item 18 is the ripple generation runner of mechanical type harmonic gear; Symbol logo among the figure: N representes that polarity is the permanent magnet of N, and S representes that polarity is the permanent magnet of S, n
1, T
1The input speed and the input torque of expression power shaft 1, n
2, T
2The output speed of output shaft 14 and output torque, 2p
sThe distribution number of poles of expression stator permanent magnet 7,2p
rThe distribution number of poles of expression rotor permanent magnet 8, Z
bThe salient pole wave number of expression salient pole type magnetic conductance wave rotor 5, d representes the salient pole d-axis of salient pole type magnetic conductance wave rotor 5, q representes the friendship axle between the salient pole of salient pole type magnetic conductance wave rotor 5, B
BdThe air gap flux density ripple of expression salient pole d-axis d direction, B
BqHand over the air gap flux density ripple of axle q direction between the expression salient pole, Z
sThe stator of expression mechanical type harmonic gear is the interior number of teeth of wheel 16 just, Z
2The outer number of teeth of the flexible rotator 17 of expression mechanical type harmonic gear, b
nThe wave number of the ripple generation runner 18 of expression mechanical type harmonic gear.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further explanation:
One, can know from Fig. 3, Fig. 4; The secondary operation principle of few extreme difference magnetic conductance harmonic wave formula magnetic gear of radial magnetic field is: during work; Power shaft 1 drives salient pole type magnetic conductance wave rotor 5 around the axis high speed rotating; The stator permanent magnet 7, rotor permanent magnet 8 that orders about salient pole d-axis d direction is by the heteropolarity coupling principle that attracts each other, according to the axial d-axis air gap flux density of d ripple B
BdAuto arrangement is integrated; Form maximum, the magnetic-coupled attraction state of the close heteropolarity the highest, that gravitation is the strongest of d-axis magnetic of the axial salient pole magnetic conductance of d; Owing to few extreme difference reason fixing between permanent-magnet stator and p-m rotor, and make the q direction of principal axis just in time be in air reluctance maximum, the close minimum B of friendship axle magnetic
BdThe same polarity magnetic repulsion state of ≈ 0; To Fig. 3, double wave transmission shown in Figure 4, salient pole type magnetic conductance wave rotor 5 p-m rotor that whenever rotates a circle then oppositely turns over 2Z
bThe magnetic pole angle of individual p-m rotor, thereby the speed change transmission of realization power.
Can find out that from Fig. 3, Fig. 4 and Fig. 5 the secondary architectural feature of the few extreme difference magnetic conductance harmonic wave formula magnetic gear of radial magnetic field is following:
Two, by having 2p
sThe permanent-magnet stator of individual stator permanent magnet 7 and have 2p
rThe p-m rotor of individual rotor permanent magnet 8 and have Z
bIt is secondary that the salient pole type magnetic conductance wave rotor 5 of individual salient pole wave number constitutes magnetic conductance harmonic wave formula magnetic gear, the distributed pole logarithm p of stator permanent magnet 7
sDistributed pole logarithm p with rotor permanent magnet 8
rFor coprime each other positive integer is right, and satisfy following relation constraint: ︱ p
s-p
r︱=︱ Z
b︱; Z
b=± 2 is the double wave kind of drive, Z
b=± 3 is the three ripple kinds of drive, Z
b=± 4 is the four ripple kinds of drive; Fig. 3, Fig. 4 have showed the harmonic wave magnetic gear pair operation principle radial topology figure of the double wave kind of drive of two kinds of versions.
Three, be the concentric type distributed architecture between permanent-magnet stator, p-m rotor and salient pole type magnetic conductance wave rotor 5 threes of few extreme difference magnetic conductance harmonic wave formula magnetic gear pair of radial magnetic field; There is air gap to each other and is coupled through radial air gap magnetic field; Power shaft 1 is fastenedly connected with salient pole type magnetic conductance wave rotor 5; Front end is connected with prime mover after bearing I 2, front end housing 3 positioning and fixing, and the rear end is connected with output shaft 14 after bearing I II 11, wave rotor end cap 10 positioning and fixing; Output shaft 14 is fastenedly connected with the rotor core 9 of p-m rotor, and after bearing I V 12, rear end cap 13 positioning and fixing, is connected with load; Stator core 6 mounting arrangements of permanent-magnet stator are in the outermost layer of two rotors, and two rotors are divided into two kinds of versions at fit on: the first, and the built-in wave rotor structure of salient pole type magnetic conductance wave rotor 5 within p-m rotor, the rotor wave number Z of this structure
bThe magnetic conduction number of poles that equals to protrude, Fig. 2 have been showed the harmonic wave magnetic gear schematic diagram of built-in wave rotor structure; The second, the external wave rotor structure of salient pole type magnetic conductance wave rotor 5 outside p-m rotor, the leading pole of this structure adopts hollow claw-pole structure, its rotor wave number Z
bEqual the magnetic conduction number of poles of the hollow pawl utmost point; Fig. 3, Fig. 6 have showed the harmonic wave magnetic gear schematic diagram of external wave rotor structure respectively; Fig. 5 has showed that the harmonic wave magnetic gear shaft of external wave rotor structure is to the full profile of structure; Fig. 7 shows the stereochemical structure layout plan of the main drive disk assembly of case study on implementation shown in Figure 6, and Fig. 8 shows the hollow pawl utmost point perspective view of the salient pole type magnetic conductance wave rotor 5 of case study on implementation shown in Figure 6.
Four, the secondary driving wheel of few extreme difference magnetic conductance harmonic wave formula magnetic gear of radial magnetic field is a salient pole type magnetic conductance wave rotor 5, and driven pulley is a p-m rotor, at input torque T
1And rotation speed n
1Input state under, its output movement mode is divided into: the first, permanent-magnet stator is fixed and p-m rotor and output shaft 14 rotation output torque T
2And rotation speed n
2, at this moment, constraint: T is satisfied in the secondary output transmission of magnetic gear
2÷ T
1=n
1÷ n
2=-p
r÷ (p
s-p
r); The second, p-m rotor and output shaft 14 are fixed and permanent-magnet stator rotation output torque T
2And rotation speed n
2, at this moment, constraint: T is satisfied in the secondary output transmission of magnetic gear
2÷ T
1=n
1÷ n
2=p
s÷ (p
s-p
r); The direction of rotation that occurs minus negative number representation input and output in the above drive connection is opposite.
Five, the distributed architecture of the stator permanent magnet 7 of few extreme difference magnetic conductance harmonic wave formula magnetic gear pair of radial magnetic field and rotor permanent magnet 8 all adopts the form of the N utmost point, the adjacent arrangement in twos of S utmost point heteropolarity to install; Dual mode is arranged: first on the mounting structure; Permanent magnet is installed on the face magnetic-type structure on iron core surface; The second, permanent magnet is installed on the built-in type structure in the iron core slot; What Fig. 3, Fig. 4, Fig. 5 showed is the face magnetic-type structure that permanent magnet is installed on the iron core surface; Fig. 6, Fig. 7 have showed that permanent magnet is installed on the built-in type structure in the iron core slot, and Fig. 9, Figure 10 are respectively the permanent magnet built-in type permanent-magnet stator of Fig. 6 case study on implementation and the perspective view of p-m rotor.
Six, the air gap form between permanent-magnet stator, p-m rotor and salient pole type magnetic conductance wave rotor 5 threes of few extreme difference magnetic conductance harmonic wave formula magnetic gear pair of radial magnetic field is divided into: first; By shown in Figure 3 and Fig. 4, Fig. 6 broken circle arc form the continuous cambered surface even air gap structure of concentric type; The inside and outside circle that is circle, p-m rotor cylindrical and salient pole type magnetic conductance wave rotor 5 in the permanent-magnet stator is concentric circle arc plane, and all arc-shaped surface are the continuous cambered surface of not having sudden change; Second; Press the eccentric non-homogeneous gap structure of continuous cambered surface of external wave rotor 5 inside and outside circular arcs shown in Fig. 4 solid line; Promptly through the inside and outside circular arc of salient pole type magnetic conductance wave rotor 5 is arranged to permanent-magnet stator in the circle and the eccentric arc structure of p-m rotor cylindrical decentraction, formation improves the non-homogeneous gap structure of air gap flux density waveform; The 3rd; As shown in Figure 6; For slotting on circle and rotor core 9 cylindricals in the stator core 6 of permanent magnet built-in type structure; Just formed and can improve the transmission resolution and the dynamic non-homogeneous gap structure of the discontinuous cambered surface of zigzag of stationarity, Fig. 9, Figure 10 have showed the cylindrical notching construction of rotor core 9 of interior circle and p-m rotor of stator core 6 of permanent-magnet stator of the non-homogeneous gap structure of the discontinuous cambered surface of this zigzag respectively.
Seven, the secondary salient pole type magnetic conductance wave rotor 5 of few extreme difference magnetic conductance harmonic wave formula magnetic gear of radial magnetic field adopts the solid steel machine-shaping of magnetic conduction, the magnetic conduction number of poles of its hollow pawl utmost point or solid salient pole number of poles Z
bEqual the rotor wave number; Salient pole type magnetic conductance wave rotor 5 leading pole zones offer several radially-arranged magnet isolation tanks; The minimum widith of magnet isolation tank doubles maximum air gap length; Salient pole type magnetic conductance wave rotor 5 is divided into two kinds of forms towards the arc surface of permanent-magnet stator and p-m rotor: the first, isocentric circular arc, second, eccentric arc; The leading pole of salient pole type magnetic conductance wave rotor 5 also is divided into two kinds of versions: the first, with the pivot parallel axes directly to the form leading pole; Fig. 8 has showed straight wave rotor structure to the form leading pole; The second, be oblique form leading pole with the rotary middle spindle space of lines, tiltedly utmost point pole span equals the anode-cathode distance of a p-m rotor permanent-magnet pole; Salient pole type magnetic conductance wave rotor 5 is fastenedly connected through the seam location and with bolt 15 and power shaft 1.
Eight, secondary stator core 6 and the rotor core 9 of few extreme difference magnetic conductance harmonic wave formula magnetic gear of radial magnetic field adopts the permeability magnetic material silicon steel plate through the punch process moulding; And be welded into an integral body through laminating; Be respectively charged into stator permanent magnet 7 and just constitute permanent-magnet stator and p-m rotor parts respectively with rotor permanent magnet 8; The permanent magnet arrangement mode is the form of the N utmost point, the adjacent arrangement in twos of S utmost point heteropolarity, and Fig. 9, Figure 10 show the perspective view of permanent magnet built-in type permanent-magnet stator and p-m rotor respectively.
Above-described only is the preferred implementation of present technique invention; For a person skilled in the art; Under the prerequisite that does not break away from the present technique inventive principle; Can also make some malformations and improvement (can constitute the multi-change speed drive system as the magnetic gear pair that the present invention relates to being carried out multipole d-axis series connection), these also should be regarded as the protection range of present technique invention, and these can not influence effect and practicality that the present technique invention is implemented.
Claims (3)
1. few extreme difference magnetic conductance harmonic wave formula magnetic gear of radial magnetic field is secondary, it is characterized in that:
One, by having 2p
sThe permanent-magnet stator of individual stator permanent magnet (7) and have 2p
rThe p-m rotor of individual rotor permanent magnet (8) and have Z
bIt is secondary that the salient pole type magnetic conductance wave rotor (5) of individual salient pole wave number constitutes magnetic conductance harmonic wave formula magnetic gear, the distributed pole logarithm p of stator permanent magnet (7)
sDistributed pole logarithm p with rotor permanent magnet (8)
rFor coprime each other positive integer is right, and satisfy following relation constraint: ︱ p
s-p
r︱=︱ Z
b︱; Z
b=± 2 is the double wave kind of drive, Z
b=± 3 is the three ripple kinds of drive, Z
b=± 4 is the four ripple kinds of drive;
Two, be the concentric type distributed architecture between permanent-magnet stator, p-m rotor and salient pole type magnetic conductance wave rotor (5) three of few extreme difference magnetic conductance harmonic wave formula magnetic gear pair of radial magnetic field; There is air gap to each other and is coupled through radial air gap magnetic field; Power shaft (1) is fastenedly connected with salient pole type magnetic conductance wave rotor (5); Front end is connected with prime mover after bearing I (2), front end housing (3) positioning and fixing, and the rear end is connected with output shaft (14) after bearing I II (11), wave rotor end cap (10) positioning and fixing; Output shaft (14) is fastenedly connected with the rotor core (9) of p-m rotor, and after bearing I V (12), rear end cap (13) positioning and fixing, is connected with load; The stator core of permanent-magnet stator (6) mounting arrangements is in the outermost layer of two rotors, and two rotors are divided into two kinds of versions at fit on: the first, and the built-in wave rotor structure of salient pole type magnetic conductance wave rotor (5) within p-m rotor, the rotor wave number Z of this structure
bThe magnetic conduction number of poles that equals to protrude; The second, the external wave rotor structure of salient pole type magnetic conductance wave rotor (5) outside p-m rotor, the leading pole of this structure adopts hollow claw-pole structure, its rotor wave number Z
bEqual the magnetic conduction number of poles of the hollow pawl utmost point;
Three, the secondary driving wheel of few extreme difference magnetic conductance harmonic wave formula magnetic gear of radial magnetic field is a salient pole type magnetic conductance wave rotor (5), and driven pulley is a p-m rotor, at input torque T
1And rotation speed n
1Input state under, its output movement mode is divided into: the first, permanent-magnet stator is fixed and p-m rotor and output shaft (14) rotation output torque T
2And rotation speed n
2, at this moment, constraint: T is satisfied in the secondary output transmission of magnetic gear
2÷ T
1=n
1÷ n
2=-p
r÷ (p
s-p
r); The second, p-m rotor and output shaft (14) are fixed and permanent-magnet stator rotation output torque T
2And rotation speed n
2, at this moment, constraint: T is satisfied in the secondary output transmission of magnetic gear
2÷ T
1=n
1÷ n
2=p
s÷ (p
s-p
r); The direction of rotation that occurs minus negative number representation input and output in the above drive connection is opposite;
Four, the distributed architecture of the stator permanent magnet (7) of few extreme difference magnetic conductance harmonic wave formula magnetic gear pair of radial magnetic field and rotor permanent magnet (8) all adopts the form of the N utmost point, the adjacent arrangement in twos of S utmost point heteropolarity to install; Dual mode is arranged: first on the mounting structure; Permanent magnet is installed on the face magnetic-type structure on iron core surface; The second, permanent magnet is installed on the built-in type structure in the iron core slot;
Five, the air gap form between permanent-magnet stator, p-m rotor and salient pole type magnetic conductance wave rotor (5) three of few extreme difference magnetic conductance harmonic wave formula magnetic gear pair of radial magnetic field is divided into: first; The continuous cambered surface even air gap structure of concentric type; The inside and outside circle that is circle, p-m rotor cylindrical and salient pole type magnetic conductance wave rotor (5) in the permanent-magnet stator is concentric circle arc plane, and all arc-shaped surface are the continuous cambered surface of not having sudden change; Second; The non-homogeneous gap structure of continuous cambered surface of eccentric arc formula; Promptly through the inside and outside circular arc of salient pole type magnetic conductance wave rotor (5) is arranged to permanent-magnet stator in the circle and the eccentric arc structure of p-m rotor cylindrical decentraction, formation improves the non-homogeneous gap structure of air gap flux density waveform; The 3rd, the non-homogeneous gap structure of the discontinuous cambered surface of zigzag that can improve transmission resolution and dynamic stationarity for slotting on round in the stator core (6) of permanent magnet built-in type structure and rotor core (9) cylindrical, just having formed.
2. few extreme difference magnetic conductance harmonic wave formula magnetic gear of a kind of radial magnetic field according to claim 1 is secondary, it is characterized in that: salient pole type magnetic conductance wave rotor (5) adopts the solid steel machine-shaping of magnetic conduction, the magnetic conduction number of poles of its hollow pawl utmost point or solid salient pole number of poles Z
bEqual the rotor wave number; Salient pole type magnetic conductance wave rotor (5) leading pole zone offers several radially-arranged magnet isolation tanks; The minimum widith of magnet isolation tank doubles maximum air gap length; Salient pole type magnetic conductance wave rotor (5) is divided into two kinds of forms towards the arc surface of permanent-magnet stator and p-m rotor: the first, isocentric circular arc, second, eccentric arc; The leading pole of salient pole type magnetic conductance wave rotor (5) also is divided into two kinds of versions: the first, with the pivot parallel axes directly to the form leading pole; The second, be oblique form leading pole with the rotary middle spindle space of lines, tiltedly utmost point pole span equals the anode-cathode distance of a p-m rotor permanent-magnet pole; Salient pole type magnetic conductance wave rotor (5) is fastenedly connected through the seam location and with bolt (15) and power shaft (1).
3. few extreme difference magnetic conductance harmonic wave formula magnetic gear of a kind of radial magnetic field according to claim 1 is secondary; It is characterized in that: stator core (6) and rotor core (9) adopt the permeability magnetic material silicon steel plate through the punch process moulding; And be welded into an integral body through laminating; Be respectively charged into stator permanent magnet (7) and rotor permanent magnet (8) and just constitute permanent-magnet stator and p-m rotor parts respectively, the permanent magnet arrangement mode is the form of the N utmost point, the adjacent arrangement in twos of S utmost point heteropolarity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201397058U CN202602516U (en) | 2012-04-05 | 2012-04-05 | Poor pole difference magnetic guidable harmonic wave type magnetic gear pair of radial magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201397058U CN202602516U (en) | 2012-04-05 | 2012-04-05 | Poor pole difference magnetic guidable harmonic wave type magnetic gear pair of radial magnetic field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202602516U true CN202602516U (en) | 2012-12-12 |
Family
ID=47320027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201397058U Expired - Lifetime CN202602516U (en) | 2012-04-05 | 2012-04-05 | Poor pole difference magnetic guidable harmonic wave type magnetic gear pair of radial magnetic field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202602516U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611280A (en) * | 2012-04-05 | 2012-07-25 | 余虹锦 | Small-range magnetic conductance harmonic type magnetic gear pair of radial magnetic field |
| CN110799775A (en) * | 2017-06-27 | 2020-02-14 | 舍弗勒技术股份两合公司 | Harmonic speed variator |
-
2012
- 2012-04-05 CN CN2012201397058U patent/CN202602516U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611280A (en) * | 2012-04-05 | 2012-07-25 | 余虹锦 | Small-range magnetic conductance harmonic type magnetic gear pair of radial magnetic field |
| CN102611280B (en) * | 2012-04-05 | 2014-01-15 | 余虹锦 | Small-range magnetic conductance harmonic type magnetic gear pair of radial magnetic field |
| CN110799775A (en) * | 2017-06-27 | 2020-02-14 | 舍弗勒技术股份两合公司 | Harmonic speed variator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103378711B (en) | Dual mechanical port magnetic conductance harmonic type electromagnetic gear composite permanent magnet motor | |
| CN202602458U (en) | Magnetic-conductance harmonic-wave electromagnetic gear combined permanent magnet motor with double machinery ports | |
| CN202334126U (en) | Direct driving type magnetic transmission and double-stator structured compound permanent magnet motor | |
| CN202004600U (en) | Magnetic gear based disc type composite motor with low speed and large torque | |
| US9641059B2 (en) | Flux focusing magnetic gear assembly using ferrite magnets or the like | |
| US9559577B2 (en) | Flux focusing magnetic gear assembly using ferrite magnets or the like | |
| CN108880164B (en) | Bidirectional modulation hybrid excitation alternating-pole motor | |
| CN102611280B (en) | Small-range magnetic conductance harmonic type magnetic gear pair of radial magnetic field | |
| CN202488331U (en) | Novel small-tooth difference magnetic field coupling magnet feed eccentric gear pair of radial magnetic field | |
| CN102857069B (en) | Small-range magnetic-conductive harmonic magnetic gear pair of axial planar magnetic field | |
| CN103997174A (en) | Rotor salient pole type hybrid excitation motor based on magnetic gear | |
| CN102868268A (en) | Novel air gap magnetic field electromagnetic modulation permanent magnet motor with double squirrel cage structure | |
| CN202158160U (en) | Novel magnetic transmission gear pair of transverse magnetic field | |
| CN102510191A (en) | Brushless composite permanent magnet motor with transverse-axial and radial magnetic flux structure | |
| CN202906721U (en) | Low-range magnetic guide harmonic wave type magnetic gear pair of axial plane magnetic field | |
| CN202602516U (en) | Poor pole difference magnetic guidable harmonic wave type magnetic gear pair of radial magnetic field | |
| CN102808919A (en) | Magnetism transmission gear pair of novel transverse magnetic field | |
| CN103107676B (en) | Little pole difference magnetic field coupling type magnetism transmission eccentricity gear pair of novel radial direction magnetic field | |
| CN203827109U (en) | Magnetic energy power generator and magnetic energy power generation system | |
| CN202616967U (en) | Novel small-pole-difference electromagnetic eccentric magnetic gear pair of a radial magnetic field | |
| CN103582992A (en) | Novel small pole difference magnetic field coupling type eccentric magnetic gear pair with radial magnetic field | |
| CN103618392B (en) | Stator and rotor dual-permanent-magnet excitation harmonic motor | |
| CN202301828U (en) | Small range magnetic field induction type magnetic transmission eccentric gear pair of radial magnetic field | |
| CN103016676B (en) | Asynchronous inducting type less-polarity-difference magnetic driving eccentric gear pair in transverse magnetic field | |
| CN202349148U (en) | Novel small pole difference magnetic transmission eccentric disk gear pair with transverse magnetic field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121212 Effective date of abandoning: 20140115 |
|
| RGAV | Abandon patent right to avoid regrant |