CN202602458U - Magnetic-conductance harmonic-wave electromagnetic gear combined permanent magnet motor with double machinery ports - Google Patents
Magnetic-conductance harmonic-wave electromagnetic gear combined permanent magnet motor with double machinery ports Download PDFInfo
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- CN202602458U CN202602458U CN2012201628993U CN201220162899U CN202602458U CN 202602458 U CN202602458 U CN 202602458U CN 2012201628993 U CN2012201628993 U CN 2012201628993U CN 201220162899 U CN201220162899 U CN 201220162899U CN 202602458 U CN202602458 U CN 202602458U
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Abstract
The utility model relates to a magnetic-conductance harmonic-wave electromagnetic gear combined permanent magnet motor with double machinery ports, which can be widely applied to industrial transmission fields including wind power generation, electric automobile, ship drive, and servo drive. The motor is characterized in that a stator, a permanent magnet rotor and a salient pole type magnetic conductance wave rotor compose main transmission members of the electromagnetic gear combined permanent magnet motor, wherein the stator is composed of a stator core 9 and a stator winding 8 with 2ps poles, the permanent magnet rotor is composed of an output shaft 16 and a rotor core 17 which is equipped a rotor magnet rotor 18 with 2pr poles, and the salient pole type magnetic conductance wave rotor 6 is equipped with Zb salient pole waves. The difference between the pole-pair numbers ps and pr is relatively small; the stator, the permanent magnet rotor and the salient pole type magnetic conductance wave rotor 6 are installed coaxially and are coupled to each other via a radial air-gap magnetic field, wherein the stator, the permanent magnet rotor and the salient pole type magnetic conductance wave rotor 6 are mutually coupled in salient pole straight-axial areas of the salient pole type magnetic conductance wave rotor 6 which rotates in a high speed by utilizing the principle that heteropolar magnetic fields with small pole difference attract each other, thereby driving the permanent magnet rotor to rotate in a low speed; thus, speed-variable torque-variable controllable power transmission without machinery contact or friction is realized.
Description
Technical field
The present invention is a kind of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine; Be the electromagnetic gear transmission of magnetic conductance harmonic wave formula and magneto multiport magneto speed change, the bending moment motor that be compound in one, that have two mechanical output ports and an electrical power port that will lack extreme difference; Be the little moment mechanical energy of the high rotating speed of realization, the big moment mechanical energy of the slow-speed of revolution, reach the electricity speed change transmission energy converter of conversion each other, can be widely used in industrial robot servo-drive, wind power generation, hydroelectric power generation, hybrid vehicle, ships driving and the direct industrial transmission field that drives of other needs.
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.
In the recent period; That this case inventor has also proposed is a kind of " few extreme difference magnetic conductance harmonic wave formula magnetic gear of radial magnetic field is secondary " (201210097726.2 and 201220139705.8) new construction; This magnetic gear pair is to utilize the wrong utmost point principle in few extreme difference magnetic field on two transmission wheel sets and combine mechanical harmonic gear side set drive technology principle to improve the secondary eccentric structure of few extreme difference magnetic gear; The permanent-magnetic field of two kinds of different numbers of poles attracts each other to be coupled at the zone of specific wave number formation heteropolarity and reaches the purpose of carry-over moment and speed change transmission; But this is the notion of a kind of pair of permanent magnetism coupling speed change in the specific region; Though the magnetic gear of this structure has solved the eccentric fault of construction of few extreme difference magnetic gear, owing to permanent-magnetic field can't be regulated, so also can't realize the moment dynamic adjustments with load variations.Thereby all also have no talent both at home and abroad up to now and proposed to change through the adjusting electric current magnetic conductance harmonic wave formula electromagnetic gear of magnetic field dynamic tracking loading moment; Moreover; At present both at home and abroad also nobody proposed magnetic gear and magneto are thoroughly merged unification, have magnetic gear speed change and a magneto driving function is compound and be the new construction of one from magnetic structure, and such technical research and structure are invented for practical applications and especially the driving system of hybrid vehicle of parallel-connection structure and wind power generation, the controlled driving of submarine etc. had great importance.
Summary of the invention
At first, come the know-why of the mechanical type Harmonic Gears of analysis conventional by Fig. 1, among the figure: 3 be power shaft, and 20 have just taken turns for stator, and item 21 is a flexible rotator, and item 22 is a ripple generation runner; Symbol logo among the figure: n
b, n
rExpression input speed, output speed, Z
1The stator of expression mechanical type harmonic gear is the interior number of teeth of wheel 20 just, Z
2The outer number of teeth of the flexible rotator 21 of expression mechanical type harmonic gear, b
nThe wave number of the ripple generation runner 22 of expression mechanical type harmonic gear.When pack into the interior bowlder of flexible rotator 21 of ripple generation runner 22, force flexible rotator 21 to produce strains, make the gear teeth of its major axis place flexible rotator insert stator just in the wheel teeth groove of wheel 20, 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 22 rotates continuously; Force flexible rotator 21 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 21 of ripple generation runner 22 and passive flexible rotators.Side set is the reason that motion produces in the Harmonic Gears, and stator has just been taken turns 20 interior tooth number Z
1Outer number of teeth Z with flexible rotator 21
2Number of teeth difference is very little, its number of teeth difference Z
1-Z
2=± b
nDetermined when ripple generation runner 22 circles flexible rotator 21 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; Under the condition of flexible rotator 21 rotation outputs shown in the figure, its gearratio is: b
n÷ n
r=-Z
2÷ (Z
1-Z
2The Z of)=-
2÷ (± b
n).
According to the principle of above-mentioned mechanical type Harmonic Gears technology, the purpose of present technique invention is to provide the double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine new construction of a kind of air gap flux density ripple with the variation of load adjustable size joint.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 22 usefulness of Harmonic Gears high speed is had the magnetic conductance saliency; Replace the stator internal tooth of wheel 20 just with stator winding electricity excitation pole, with the external tooth on the permanent magnet replacement flexible rotator 21 of rare earth material, salient pole type magnetic conductance wave rotor and have between the flexible rotator of permanent-magnet pole, all have air gap between the stator of flexible rotator and charged field pole; The coaxial mounting structure of three is coupled through radial air gap magnetic field to each other.Pass through direct current I in the stator winding; The stator air gap will produce the stationary magnetic field of fixed in space; The number of magnetic poles difference of stator field and rotor is very little, forms fixing few extreme difference, and 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; Drive the secondary low speed rotation of magnetic gear of few extreme difference, thereby form magnetic conductance harmonic wave formula electromagnetic gear speed change operating state; Pass to the multiphase pulse current i that has phase difference in the stator winding; The stator air gap will produce rotating magnetic field; This rotating magnetic field will with the high-speed rotating machine dynamic combined action that inputs to salient pole type magnetic conductance wave rotor from input port; Driving has the p-m rotor rotation of permanent-magnet pole, thereby forms the compound operating state of magnetic conductance harmonic wave formula electromagnetic gear and magneto.
Below in conjunction with Fig. 2, Fig. 3 and Fig. 4 the operation principle and the architectural feature of this double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine are described, among the figure: 1 be front end housing, and 2 is bearing I, and item 3 is a power shaft; Item 4 is bearing I I, and item 5 is a bolt, and item 6 is a salient pole type magnetic conductance wave rotor, and item 7 is a stator cage; Item 8 is a stator winding, and item 9 is a stator core, and item 10 is a stator lead-out wire, and item 11 is a screw; Item 12 is the wave rotor end cap, and item 13 is bearing I II, and item 14 is a rear end cap, and item 15 is bearing I V; Item 16 is an output shaft, and item 17 is a rotor core, and item 18 is a rotor permanent magnet, and item 19 is the driving power controller; 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
bThe input speed of expression power shaft 3, n
rThe output speed of expression output shaft 16, n
sThe rotation rotating speed of expression stator field, 2p
sThe number of poles of expression stator winding 8,2p
rThe distribution number of poles of expression rotor permanent magnet 18, Z
bThe salient pole wave number of expression salient pole type magnetic conductance wave rotor 6, Z
sThe line embedding groove number of expression stator core 9, B
BdBe illustrated in the air gap flux density ripple of the salient pole d-axis direction of salient pole type magnetic conductance wave rotor 6, I representes the DC excitation electric current of harmonic wave electromagnetic gear state, and i representes the pulse current of electromagnetic gear and motor combined state.Fig. 2 is the radial topology figure of the magnetic conductance harmonic wave electromagnetic gear working method of built-in double wave rotor structure; Fig. 3 is the operation principle radial topology figure of the magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine of external double wave rotor structure; Fig. 4 is the full profile of magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine axial arrangement of external wave rotor structure.
Can know by figure; There is two mechanical output ports and electric connection port that connects through stator lead-out wire 10 and outside that is connected with exterior mechanical through power shaft 3 and output shaft 16 in double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine, corresponding clutch operating state, gear graduation transmission operating state, the compound operating state of gear motor, the compound operating state of gear power generation machine of existing:
The first, clutch operating state: can know by Fig. 2; At driving power controller 19 not during output current; The magnetic field that do not have between stator and the birotor is coupled; Drive connection is full decoupled, and the rotation of salient pole type magnetic conductance wave rotor 6 can not drive the p-m rotor rotation that has permanent-magnet pole, and this is the clutch operating state;
The second, gear graduation transmission operating state: can know that by Fig. 2 when passing through direct current I in the stator winding 8, the stator air gap will produce the stationary magnetic field of fixed in space, i.e. stator field rotation rotation speed n among the figure
s=0; The number of magnetic poles difference of stator field and rotor is very little; Form 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 6 of high speed rotating, drives the secondary low speed rotation of magnetic gear of few extreme difference, thereby forms magnetic conductance harmonic wave formula electromagnetic gear speed change operating state; The few tooth difference Harmonic Gears of the operation principle of this state and mechanical type is similar, and power shaft 3 drives salient pole type magnetic conductance wave rotor 6 around the axis high speed rotating when promptly working, and the current field that orders about rotor permanent magnet 8 and stator winding 8 is according to salient pole d-axis air gap flux density ripple B
BdAuto arrangement is integrated, and forms maximum, the d-axis magnetic condensation wave B of salient pole magnetic conductance of d-axis direction
BdThe magnetic-coupled attraction state of heteropolarity the highest, that gravitation is the strongest; Owing to few extreme difference reason fixing between stator electricity excitation magnetic field and p-m rotor, and make the friendship axle zone between the salient pole of salient pole type magnetic conductance wave rotor 6 just in time be in the air reluctance maximum, hand over the close minimum same polarity magnetic repulsion state of axle magnetic; To Fig. 2, double wave transmission Z shown in Figure 3
b=2, salient pole type magnetic conductance wave rotor 6 p-m rotor that whenever rotates a circle then oppositely turns over 2Z
bThe magnetic pole angle of=4 p-m rotors, thus realize the transmission of mechanokinetic speed change, and the size of the excitation DC electric current I of control input just can play the effect of regulating the stator air-gap field and changing output torque; The drive connection of this state satisfies n
r÷ n
b=1-(p
s÷ p
r), the direction of rotation that occurs minus negative number representation input and output in the drive connection is opposite;
Three, the compound operating state of gear motor: can know that by Fig. 3 in stator winding 8, passing to frequency is f
sAnd have the multiphase pulse current i of phase difference, the stator air gap will produce rotating magnetic field, and the rotating magnetic field rotating speed is n
s=60 * f
s÷ p
s, this rotating magnetic field will with pass to from power shaft 3 salient pole type magnetic conductance wave rotor 6, rotating speed is n
bThe mechanical output acting in conjunction, drive the p-m rotor rotation have permanent-magnet pole, its drive connection satisfies n
r÷ (n
b-n
s)=1-(p
s÷ p
r), thereby the compound operating state of formation magnetic conductance harmonic wave formula electromagnetic gear and magneto; Amplitude and pulse frequency f through driving power controller 19 regulating impulse current i
s, can realize in a big way output torque and the adjusting of output speed, thereby realize the needs of infinitely variable speeds bending moment;
Four, the compound operating state of gear power generation machine: can know by Fig. 3, Fig. 4, when two mechanical ports that are connected with external impetus are all imported different rotating speeds n through power shaft 3 and output shaft 16
bAnd n
rMechanical output the time, it is f that stator winding 8 will induce frequency
sAlternating potential, after handling through driving power controller 19 electrical power is provided externally, the stator air-gap field rotating speed of generating state is the synthetic n of two mechanical port input speeds
s=n
b-n
r* p
r÷ (p
r-p
s), stator winding 8 induced potential alternative frequencies are f
s=p
s* n
s÷ 60;
In sum, the architectural feature of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine is following:
One, there be two mechanical output ports and electric connection port that is connected with exterior mechanical through power shaft 3 and output shaft 16 in double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine; Wherein power shaft 3 is connected with salient pole type magnetic conductance wave rotor 6; Output shaft 16 is connected with p-m rotor; Electrical port connects with driving power controller 19 through stator lead-out wire 10, and the main drive disk assembly that constitutes this compound machine is: have 2p
sThe stator of utmost point stator winding 8, has 2p
rThe p-m rotor of individual rotor permanent magnet 18, has Z
bThe salient pole type magnetic conductance wave rotor 6 of individual rotor wave number; More than main drive disk assembly on architectural feature, satisfy: number of pole-pairs p
sAnd p
rNumber difference is less and be that coprime each other positive integer is right, and has | p
s-p
r|=| Z
b|; Z
b=± 2 is double wave fax flowing mode, Z
b=± 3 is three ripple fax flowing modes, Z
b=± 4 is four ripple fax flowing modes; This compound machine is divided on working method: clutch working method, gear graduation transmission working method, the compound working method of gear motor, the compound working method of gear power generation machine, input speed n in all working mode
b, output speed n
r, the stator field rotation speed n
sWith stator alternating current frequency f
sAll satisfy motion composite structure relation constraint: n
r÷ (n
b-n
s)=1-(p
s÷ p
r), and n
s=60 * f
s÷ p
s, the direction of rotation that occurs minus negative number representation input and output in this drive connection structure is opposite;
Two, be the concentric type distributed architecture between the stator of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine, p-m rotor and salient pole type magnetic conductance wave rotor 6 threes; There is air gap to each other and is coupled through radial air gap magnetic field; Power shaft 3 is fastenedly connected with salient pole type magnetic conductance wave rotor 6 usefulness bolts 5; Front end is connected with prime mover after bearing I 2, front end housing 1 positioning and fixing, and wave rotor end cap 12 is fixed with screw 11 with back, salient pole type magnetic conductance wave rotor 6 location and is connected with output shaft 16 through bearing I II13; Output shaft 16 is fastenedly connected with the rotor core 17 of p-m rotor, and after bearing I V15, rear end cap 14 positioning and fixing, is connected with load machinery; Integral layout structure between two rotors of stator is divided into two kinds of forms: the first, with stator core 6 mounting arrangements of stator in the outermost external stator inner rotor core of two rotors, second, with stator core 6 mounting arrangements of stator in the internal stator outer-rotor structure of two rotor innermost layers; Two rotors also are divided into two kinds of versions on the assembling layout structure: the first, and the built-in wave rotor structure of salient pole type magnetic conductance wave rotor 6 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 6 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 distributed architecture of the rotor permanent magnet 18 of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine 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;
Four, the air gap form between the stator of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine, p-m rotor and salient pole type magnetic conductance wave rotor 6 threes 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 6 in the 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 6 is arranged to 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 17 cylindricals in the stator core 9 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, the double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine 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, transmission efficiency is higher, belongs to the high-efficiency and energy-saving type product, meets low carbon ring and protects economic traits, and wide popularization and application can greatly be saved the energy, reduces carbon emission.
2. energy (moment) density is higher: the permanent-magnetic field of few extreme difference and the coupling technique of electromagnetic field make the electromagnetic field couples degree improve than the magnetic gear transmission 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, automatically controlled 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 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, adjusting are controlled conveniently, buffering is isolated, overload protection: the rotating speed gearratio is constant, and the dynamic instantaneous stability height of rotating speed operates steadily; Owing to increased the Current Regulation link, thereby can realize regulating with the dynamic force moment of load variations, also can realize the stepless speed regulation requirement of certain limit simultaneously, this drives synthetic to hybrid power and clutch for clutch control has potential using value.In addition, cut off drive connection at any time because of driving and driven wheel spike during overload, can not damage load or prime mover; 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 the radial topology figure of the magnetic conductance harmonic wave electromagnetic gear working method of built-in double wave rotor structure;
Fig. 3 is the operation principle radial topology figure of the magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine of external double wave rotor structure;
Fig. 4 is the full profile of magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine axial arrangement of external wave rotor structure;
Fig. 5 is the operation principle radial topology figure of the magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine of external three wave rotor structures;
Fig. 6 is the operation principle radial topology figure of the magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine of built-in three wave rotor structures;
Fig. 7 is the radial topology figure of the magnetic conductance harmonic wave electromagnetic gear working method of external four wave rotor structures;
Fig. 8 is the operation principle radial topology figure of the magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine of built-in four wave rotor structures;
Fig. 9 be external three wave rotor structures the stereochemical structure layout plan of the main drive disk assembly of magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine;
Figure 10 is the p-m rotor perspective view of the magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine of built-in type permanent-magnet pole structure;
Figure 11 be external three wave rotor structures salient pole type magnetic conductance wave rotor 6 perspective view of magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine.
More than among the figure: 1. front end housing, 2. bearing I, 3. power shaft, 4. bearing I I, 5. bolt; 6. salient pole type magnetic conductance wave rotor, 7. stator cage, 8. stator winding, 9. stator core, 10. stator lead-out wire; 11. screw, 12. wave rotor end caps, 13. bearing I II, 14. rear end caps, 15. bearing I V; 16. output shaft, 17. rotor cores, 18. rotor permanent magnets, 19. driving power controllers; 20. stator is just taken turns, 21. flexible rotators, 22. ripple generation runners; 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
bThe input speed of expression power shaft 3, n
rThe output speed of expression output shaft 16, n
sThe rotation rotating speed of expression stator field, 2p
sThe number of poles of expression stator winding 8,2p
rThe distribution number of poles of expression rotor permanent magnet 18, Z
bThe salient pole wave number of expression salient pole type magnetic conductance wave rotor 6, Z
sThe line embedding groove number of expression stator core 9, B
BdBe illustrated in the air gap flux density ripple of the salient pole d-axis direction of salient pole type magnetic conductance wave rotor 6, I representes the DC excitation electric current of harmonic wave electromagnetic gear state, and i representes the pulse current of electromagnetic gear and motor combined state; Z
1The stator of expression mechanical type harmonic gear is the interior number of teeth of wheel 20 just, Z
2The outer number of teeth of the flexible rotator 21 of expression mechanical type harmonic gear, b
nThe wave number of the ripple generation runner 22 of expression mechanical type harmonic gear.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further explanation:
Can know from Fig. 2, Fig. 3 that one, the operation principle of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine is: when passing through direct current I in the stator winding 8, the stator air gap will produce the stationary magnetic field of fixed in space, i.e. stator field rotation rotation speed n among Fig. 2
s=0; The number of magnetic poles difference of stator field and rotor is very little; Form 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 6 of high speed rotating, drives the secondary low speed rotation of magnetic gear of few extreme difference; Thereby form magnetic conductance harmonic wave formula electromagnetic gear speed change operating state, the size of the excitation DC electric current I of control input just can play the effect of regulating the stator air-gap field and changing output torque; Fig. 2 has showed the radial topology figure for the magnetic conductance harmonic wave electromagnetic gear working method of built-in double wave rotor structure; Fig. 7 has showed the radial topology figure of the magnetic conductance harmonic wave electromagnetic gear working method of external four wave rotor structures; In stator winding 8, passing to frequency is f
sAnd it is n that the multiphase pulse current i that has phase difference, stator air gap will produce rotating speed
sRotating magnetic field, this rotating magnetic field will with pass to from power shaft 3 salient pole type magnetic conductance wave rotor 6, rotating speed is n
bThe mechanical output acting in conjunction, drive the p-m rotor rotation have permanent-magnet pole, thereby form the compound operating state of magnetic conductance harmonic wave formula electromagnetic gear and magneto; Amplitude and pulse frequency f through driving power controller 19 regulating impulse current i
s, can realize in a big way output torque and the adjusting of output speed, thereby realize the needs of infinitely variable speeds bending moment; Fig. 3, Fig. 5, Fig. 6 and Fig. 8 have all showed the operation principle radial topology figure of the magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine of various textural classifications.
Two, can know from Fig. 4; There is two mechanical output ports and electric connection port that is connected with exterior mechanical through power shaft 3 and output shaft 16 in double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine; Wherein power shaft 3 is connected with salient pole type magnetic conductance wave rotor 6; Output shaft 16 is connected with p-m rotor, and electrical port connects with driving power controller 19 through stator lead-out wire 10, and the main drive disk assembly that constitutes this compound machine is: have 2p
sThe stator of utmost point stator winding 8, has 2p
rThe p-m rotor of individual rotor permanent magnet 18, has Z
bThe salient pole type magnetic conductance wave rotor 6 of individual rotor wave number; More than main drive disk assembly on architectural feature, satisfy: number of pole-pairs p
sAnd p
rNumber difference is less and be that coprime each other positive integer is right, and has | p
s-p
r|=| Z
b|; Like Fig. 2, shown in Figure 3, Z
b=± 2 is double wave fax flowing mode, like Fig. 5, shown in Figure 6, Z
b=± 3 is three ripple fax flowing modes, like Fig. 7, shown in Figure 8, Z
b=± 4 is four ripple fax flowing modes; This compound machine is divided on working method: clutch working method, gear graduation transmission working method, the compound working method of gear motor, the compound working method of gear power generation machine, input speed n in all working mode
b, output speed n
r, the stator field rotation speed n
sWith stator alternating current frequency f
sAll satisfy motion composite structure relation constraint: n
r÷ (n
b-n
s)=1-(p
s÷ p
r), and n
s=60 * f
s÷ p
s, the direction of rotation that occurs minus negative number representation input and output in this drive connection structure is opposite.
Three, be the concentric type distributed architecture between the stator of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine, p-m rotor and salient pole type magnetic conductance wave rotor 6 threes; There is air gap to each other and is coupled through radial air gap magnetic field; Power shaft 3 is fastenedly connected with salient pole type magnetic conductance wave rotor 6 usefulness bolts 5; Front end is connected with prime mover after bearing I 2, front end housing 1 positioning and fixing, and wave rotor end cap 12 is fixed with screw 11 with back, salient pole type magnetic conductance wave rotor 6 location and is connected with output shaft 16 through bearing I II13; Output shaft 16 is fastenedly connected with the rotor core 17 of p-m rotor, and after bearing I V15, rear end cap 14 positioning and fixing, is connected with load machinery; Integral layout structure between two rotors of stator is divided into two kinds of forms: the first, with stator core 6 mounting arrangements of stator in the outermost external stator inner rotor core of two rotors, second, with stator core 6 mounting arrangements of stator in the internal stator outer-rotor structure of two rotor innermost layers; Two rotors also are divided into two kinds of versions on the assembling layout structure: the first, and the built-in wave rotor structure of salient pole type magnetic conductance wave rotor 6 within p-m rotor, like Fig. 2, Fig. 6, shown in Figure 8, the magnetic conduction number of poles that the rotor wave number Zb of this structure equals to protrude; The second, the external wave rotor structure of salient pole type magnetic conductance wave rotor 6 outside p-m rotor, like Fig. 3, Fig. 5, shown in Figure 7, the leading pole of this structure adopts hollow claw-pole structure, and its rotor wave number Zb equals the magnetic conduction number of poles of the hollow pawl utmost point.
Four, the distributed architecture of the rotor permanent magnet 18 of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine 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, and Fig. 7 has showed the radial topology figure of magnetic conductance harmonic wave electromagnetic gear working method of the external four wave rotor structures of face magnetic-type; The second, permanent magnet is installed on the built-in type structure in the iron core slot; Figure 10 has showed the p-m rotor perspective view of the magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine of built-in type permanent-magnet pole structure.
Five, the air gap form between the stator of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine, p-m rotor and salient pole type magnetic conductance wave rotor 6 threes 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 6 in the 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 6 is arranged to 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 17 cylindricals in the stator core 9 of permanent magnet built-in type structure, just having formed.
Six, the salient pole type magnetic conductance wave rotor 6 of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine 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 Zb equal the rotor wave number; Salient pole type magnetic conductance wave rotor 6 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 6 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 6 also is divided into two kinds of versions: the first, with the pivot parallel axes directly to the form leading pole; Figure 11 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 6 is fastenedly connected through the seam location and with bolt 5 and power shaft 3.
Seven, the stator of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine is by having Z
sThe stator core 9 of individual line embedding groove, formation 2p
sThe stator winding 8 of individual magnetic pole of the stator, stator cage 7, the stator lead-out wire 10 that connects with the external electrical port constitute; Stator core 9 by silicon plate through punching press, be welded as integral body; Stator winding 8 is installed in the line embedding groove of stator core 9, and stator core 9 tight fits are installed in the stator cage 7; Fig. 9, Figure 10, Figure 11 show the perspective view of assembly structure stereogram, p-m rotor and the salient pole type magnetic conductance wave rotor of main drive disk assembly 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 (being designed to the internal stator outer-rotor structure as the general structure that the present invention relates to is improved), 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. double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine is characterized in that:
One, there be two mechanical output ports and electric connection port that is connected with exterior mechanical through power shaft (3) and output shaft (16) in double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine; Wherein power shaft (3) is connected with salient pole type magnetic conductance wave rotor (6); Output shaft (16) is connected with p-m rotor; Electrical port connects with driving power controller (19) through stator lead-out wire (10), and the main drive disk assembly that constitutes this compound machine is: have 2p
sThe stator of utmost point stator winding (8), has 2p
rThe p-m rotor of individual rotor permanent magnet (18), has Z
bThe salient pole type magnetic conductance wave rotor (6) of individual rotor wave number; More than main drive disk assembly on architectural feature, satisfy: number of pole-pairs p
sAnd p
rNumber difference is less and be that coprime each other positive integer is right, and has | p
s-p
r|=| Z
b|; Z
b=± 2 is double wave fax flowing mode, Z
b=± 3 is three ripple fax flowing modes, Z
b=± 4 is four ripple fax flowing modes; This compound machine is divided on working method: clutch working method, gear graduation transmission working method, the compound working method of gear motor, the compound working method of gear power generation machine, input speed n in all working mode
b, output speed n
r, the stator field rotation speed n
sWith stator alternating current frequency f
sAll satisfy motion composite structure relation constraint: n
r÷ (n
b-n
s)=1-(p
s÷ p
r), and n
s=60 * f
s÷ p
s, the direction of rotation that occurs minus negative number representation input and output in this drive connection structure is opposite;
Two, be the concentric type distributed architecture between the stator of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine, p-m rotor and salient pole type magnetic conductance wave rotor (6) three; There is air gap to each other and is coupled through radial air gap magnetic field; Power shaft (3) is fastenedly connected with bolt (5) with salient pole type magnetic conductance wave rotor (6); Front end is connected with prime mover after bearing I (2), front end housing (1) positioning and fixing, and wave rotor end cap (12) is fixed with screw (11) with back, salient pole type magnetic conductance wave rotor (6) location and is connected with output shaft (16) through bearing I II (13); Output shaft (16) is fastenedly connected with the rotor core (17) of p-m rotor, and after bearing I V (15), rear end cap (14) positioning and fixing, is connected with load machinery; Integral layout structure between two rotors of stator is divided into two kinds of forms: the first, with stator core (6) mounting arrangements of stator in the outermost external stator inner rotor core of two rotors, second, with stator core (6) mounting arrangements of stator in the internal stator outer-rotor structure of two rotor innermost layers; Two rotors also are divided into two kinds of versions on the assembling layout structure: the first, and the built-in wave rotor structure of salient pole type magnetic conductance wave rotor (6) 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 (6) 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 distributed architecture of the rotor permanent magnet (18) of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine 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;
Four, the air gap form between the stator of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine, p-m rotor and salient pole type magnetic conductance wave rotor (6) three 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 (6) in the 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 (6) is arranged to 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 (9) of permanent magnet built-in type structure and rotor core (17) cylindrical, just having formed.
2. a kind of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine according to claim 1; It is characterized in that: salient pole type magnetic conductance wave rotor (6) 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 Zb equal the rotor wave number; Salient pole type magnetic conductance wave rotor (6) leading pole zone offers several radially-arranged magnet isolation tanks; The minimum widith of magnet isolation tank doubles maximum air gap length, and salient pole type magnetic conductance wave rotor (6) 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 (6) 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 (6) is fastenedly connected through the seam location and with bolt (5) and power shaft (3).
3. a kind of double mechanical port magnetic conductance harmonic wave formula electromagnetic gear composite magnetoelectric machine according to claim 1, it is characterized in that: stator is by having Z
sThe stator core of individual line embedding groove (9), formation 2p
sThe stator winding of individual magnetic pole of the stator (8), stator cage (7), the stator lead-out wire (10) that connects with the external electrical port constitute; Stator core (9) by silicon plate through punching press, be welded as integral body; Stator winding (8) is installed in the line embedding groove of stator core (9), and stator core (9) tight fit is installed in the stator cage (7).
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|---|---|---|---|
| CN2012201628993U CN202602458U (en) | 2012-04-17 | 2012-04-17 | Magnetic-conductance harmonic-wave electromagnetic gear combined permanent magnet motor with double machinery ports |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201628993U CN202602458U (en) | 2012-04-17 | 2012-04-17 | Magnetic-conductance harmonic-wave electromagnetic gear combined permanent magnet motor with double machinery ports |
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| Publication Number | Publication Date |
|---|---|
| CN202602458U true CN202602458U (en) | 2012-12-12 |
Family
ID=47319970
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|---|---|---|---|
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103378711B (en) * | 2012-04-17 | 2015-05-06 | 余虹锦 | Dual mechanical port magnetic conductance harmonic type electromagnetic gear composite permanent magnet motor |
| CN105730217A (en) * | 2016-03-02 | 2016-07-06 | 大同裕隆环保有限责任公司 | Electromagnetic variable-torque driving system of electric vehicle |
| CN105846622A (en) * | 2016-04-05 | 2016-08-10 | 江苏大学 | Pure electric vehicle double-rotor motor with retardance and differential speed functions, and working method thereof |
| CN106374704A (en) * | 2016-09-09 | 2017-02-01 | 华中科技大学 | Brushless dual-mechanical-port permanent magnet motor based on magnetic field modulation principle |
| CN108539640A (en) * | 2018-05-22 | 2018-09-14 | 山西省工业设备安装集团有限公司 | A kind of installation method of power generation electrical-mechanical and lead-out wire |
| CN110336451A (en) * | 2019-08-12 | 2019-10-15 | 上海微电机研究所(中国电子科技集团公司第二十一研究所) | A kind of combined type bias magnetic force harmonic gear transmission device |
| CN115021515A (en) * | 2022-05-30 | 2022-09-06 | 哈尔滨工业大学 | Stator permanent magnet type low-speed large-torque motor |
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2012
- 2012-04-17 CN CN2012201628993U patent/CN202602458U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103378711B (en) * | 2012-04-17 | 2015-05-06 | 余虹锦 | Dual mechanical port magnetic conductance harmonic type electromagnetic gear composite permanent magnet motor |
| CN105730217A (en) * | 2016-03-02 | 2016-07-06 | 大同裕隆环保有限责任公司 | Electromagnetic variable-torque driving system of electric vehicle |
| CN105846622A (en) * | 2016-04-05 | 2016-08-10 | 江苏大学 | Pure electric vehicle double-rotor motor with retardance and differential speed functions, and working method thereof |
| CN106374704A (en) * | 2016-09-09 | 2017-02-01 | 华中科技大学 | Brushless dual-mechanical-port permanent magnet motor based on magnetic field modulation principle |
| CN108539640A (en) * | 2018-05-22 | 2018-09-14 | 山西省工业设备安装集团有限公司 | A kind of installation method of power generation electrical-mechanical and lead-out wire |
| CN110336451A (en) * | 2019-08-12 | 2019-10-15 | 上海微电机研究所(中国电子科技集团公司第二十一研究所) | A kind of combined type bias magnetic force harmonic gear transmission device |
| CN115021515A (en) * | 2022-05-30 | 2022-09-06 | 哈尔滨工业大学 | Stator permanent magnet type low-speed large-torque motor |
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