CN105375713A - Double-shaft motor and double-shaft driving method - Google Patents
Double-shaft motor and double-shaft driving method Download PDFInfo
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- CN105375713A CN105375713A CN201410436996.0A CN201410436996A CN105375713A CN 105375713 A CN105375713 A CN 105375713A CN 201410436996 A CN201410436996 A CN 201410436996A CN 105375713 A CN105375713 A CN 105375713A
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Abstract
Provided is a double-shaft motor. The double-shaft motor comprises a shell, a rotor shaft, at least three rotor core sets, and at least three stator cores, the rotor shaft extends in the axial direction and can perform translation along the axial direction relative to the shell and rotate along the circumferential direction, each rotor core set comprises at least a rotor core, the rotor cores are fixedly arranged on the rotor shaft in a sleeved manner and distributed at intervals along the axial direction, the rotor cores outwardly extend in a protruding manner to form a plurality of rotor teeth arranged at intervals along the circumferential direction, each stator core comprises at least two stator pole sets, each stator pole set comprises at least a stator pole, and each stator pole is wound by a conductive coil. When any rotor core set faces the stator cores in the axial direction, the rotor cores in other sets and the stator cores are staggered in the axial direction; and when a plurality of stator teeth of any stator pole set face the rotor teeth in the circumferential direction, the stator teeth of the stator poles in other sets and the rotor teeth are staggered in the circumferential direction. According to the double-shaft motor, screw rods or transmission gears are not employed so that the efficiency and the precision are high.
Description
Technical field
The present invention relates to machine field, particularly relate to a kind of dual-axle motor and Two axle drive method.
Background technology
Twin shaft (two degrees of freedom) drives to be had in a lot of fields and has important application, as in photovoltaic generating system, carries out regulating to obtain maximum lighting efficiency in real time for adapting to the change of sun angles to lighting surface; Also as in engraving industry, to the multiple control of the cutter head of automatic carving machine; Two axle drive prints field at 3D also potential application prospect.Traditional Two axle drive is mainly by realize the combination interlock in different directions of two electric rotating machines or linear electric motors, adopt the motor of this type of drive must use multiple screw mandrel or travelling gear, and the energy loss owing to bringing when the existence of backlash and gear or screw rod transmission, and then motor is made to drive the lower of precision and drive efficiency.
Therefore, a kind of precision and the higher dual-axle motor of efficiency and Two axle drive method how is provided to become problem demanding prompt solution.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of dual-axle motor in prior art, provides a kind of precision and the higher dual-axle motor of efficiency and Two axle drive method.
The technical solution adopted for the present invention to solve the technical problems is, a kind of dual-axle motor is provided, comprise the shell of formation one cavity, the mover axle be arranged in described cavity, at least three mover core groups, and at least three stator cores are on the housing installed, wherein:
Described mover axle extends vertically and also circumferentially can rotate relative to the translation vertically of described shell; Each described mover core group comprises at least one mover core, and described mover core fixed cover is located on described mover axle also spaced apart vertically, and described mover core outwards protrudes out formation circumferentially spaced multiple mover tooth;
Each described stator core comprises at least two stator pole groups, and each described stator pole groups comprises at least one stator poles, and described stator poles is inwardly protruded out by the stator yoke of described stator core and formed, and described stator poles is wound with conductive coil;
Described mover core with group can face with a described stator core simultaneously in the axial direction respectively, when mover core group described in any one faces with a described stator core in the axial direction respectively, the described mover core of other groups is staggered with described stator core in the axial direction;
Described multiple stator tooth with the described stator poles of group can face with multiple described mover tooth simultaneously in the circumferential respectively; When described multiple stator tooth of stator pole groups described in any one faces with multiple described mover tooth in the circumferential respectively, described multiple stator tooth of the described stator poles of other groups is staggered with described mover tooth in the circumferential.
Preferably, according in dual-axle motor of the present invention, the transverse tooth thickness of described stator tooth is equal with the transverse tooth thickness of described mover tooth.
Preferably, according in dual-axle motor of the present invention, the tooth pitch of described mover tooth is the twice of the described mover tooth facewidth, and the tooth pitch of described stator tooth is the twice of the described stator tooth facewidth.
Preferably, according in dual-axle motor of the present invention, the facewidth of described stator tooth is equal with the facewidth of described mover tooth.
Preferably, according in dual-axle motor of the present invention, described shell comprises first section, at least two stage casings and a rear, the axial two ends of a described stator core form dismountable connection with described first section and a described stage casing respectively, the axial two ends of a described stator core form dismountable connection with described rear and a described stage casing respectively, and every two adjacent described stage casings form dismountable connection with the axial two ends of a described stator core respectively.
Preferably, according in dual-axle motor of the present invention, at least two latches run through respectively and be fixedly connected with described first section, described stage casing, described rear and described stator core.
Preferably, according in dual-axle motor of the present invention, when the described stator tooth of a described stator pole groups faces with multiple described mover tooth in the circumferential, the described stator tooth in stator pole groups described in other each and between corresponding described mover tooth angulation all identical.
Preferably, according in dual-axle motor of the present invention, when the described stator tooth of a described stator pole groups faces with multiple described mover tooth in the circumferential, the described stator tooth in stator pole groups described in other each and between corresponding described mover tooth angulation can form arithmetic progression.
Preferably, according in dual-axle motor of the present invention, each described stator core is to projecting inward formation stator poles described in even number altogether, and described stator poles is uniformly distributed circumferentially, and each described stator pole groups comprises two the described stator poles being positioned at diameter two ends.
Present invention also offers a kind of method of Two axle drive, comprising:
Make the conductive coil alternate energisation of at least two the different stator cores distributed vertically, with the magnetic attraction axial at least one generation being fixed on multiple mover cores that described mover axle also distributes vertically, and then drive the translation vertically of described mover axle;
Make the conductive coil at least one stator poles of stator core described at least one, and alternate energisation between the conductive coil at least one other described stator poles of stator core described at least one, with the magnetic attraction that at least one generation upper to described stator poles is circumferential, and then described mover axle is driven circumferentially to rotate.
Stator poles is creatively subdivided into stator tooth by the present invention, by controlling the break-make of conductive coil, mover can be made in the rotary motion of circumference; And at least three stator cores are set simultaneously and at least three mover cores can make mover in the translational motion of circumference, namely achieve biaxial movement, and there is less magnetic leakage simultaneously.Compared with traditional dual-axle motor, dual-axle motor of the present invention is not owing to using screw mandrel or travelling gear, and thus efficiency is high, precision is high.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the perspective view of the dual-axle motor of the preferred embodiment of the present invention.
Fig. 2 is the vertical structure schematic diagram of the dual-axle motor of the preferred embodiment of the present invention.
Fig. 3 is the transversary schematic diagram of the dual-axle motor of the preferred embodiment of the present invention.
Fig. 4 is the transversary schematic diagram of the mover core of the dual-axle motor of the preferred embodiment of the present invention.
Fig. 5 is the transversary schematic diagram of the stator core of the dual-axle motor of the preferred embodiment of the present invention.
Fig. 6 is the stator tooth of the dual-axle motor of this preferred embodiment and the correlation schematic diagram of mover tooth.
Fig. 7 is the stator core of the dual-axle motor of this preferred embodiment and the transversary schematic diagram of mover core.
Fig. 8 is the stator core of the dual-axle motor of another preferred embodiment of the present invention and mover core position relationship schematic diagram in the axial direction when being in a certain relative position.
Fig. 9 is position relationship schematic diagram in the axial direction when the stator core shown in Fig. 8 and mover core are in another relative position.
Figure 10 is the present invention's position relationship schematic diagram in the axial direction when the stator core of the dual-axle motor of a preferred embodiment and mover core are in a certain relative position again.
Figure 11 is the mover core of the dual-axle motor of the another preferred embodiment of the present invention and the position relationship schematic diagram axially of stator core.
Embodiment
Around the magnetic field suction mover core that the conductive coil in stator core produces when being energized, mover core to the state variation that magnetic resistance is minimum under magnetic fields, therefore can produce electromagnet pull or torque.Based on this principle, main points of the present invention are, mover axle arranges several mover core, and correspondingly arrange several stator core, by controlling the current switching of the conductive coil that different stator core is wound with, to drive the translation in the axial direction of mover axle; Each stator core also arranges several stator poles, each stator poles is provided with multiple stator tooth, by controlling the current switching of the conductive coil be wound with in different stator poles, to drive the rotation in the circumferential of mover axle.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, for Fig. 1 be the perspective view of dual-axle motor of the preferred embodiment of the present invention.The dual-axle motor of the present embodiment, comprises shell 3, and shell 3 forms a cavity 3S.Wherein, shell 3 sequentially comprises one first section 31, two stage casings 32 and a rear 33.The axial two ends of a stator core 2 are connected with a stage casing 32 with first section 31 respectively, and the axial two ends of a stator core 2 respectively rear 33 are connected with a stage casing 32, and every two adjacent stage casings 32 are connected with the axial two ends of a stator core 2 respectively.In simple terms, namely according to first section 31, stator core 2, stage casing 32, stator core 2, stage casing 32, stator core 2, rear 34 connect vertically in turn.
On the outer end of first section 31 and rear 34, be fixed with a bearing 41 respectively, the two ends of mover axle 4 are connected with bearing 41 bearing respectively, to make mover axle 4 can housing 3 translation gliding vertically relatively under the effect of actuating force, and circumferentially rotate.In this specification, said axis is the bearing of trend of mover axle 4, also can be described as longitudinal direction; And laterally mutually orthogonal with longitudinal direction, circumference is on transverse plane with the tangential direction of mover axle 4 circumference that is the center of circle.
On mover axle 4, fixed cover is provided with five mover cores 1.These five mover cores 1 are spaced apart in the axial direction.Five mover cores 1 of the present embodiment are equally spaced in the axial direction.When any one mover core 1 faces with a stator core 2 in the axial direction, other mover core 1 is staggered with stator core 2 in the axial direction.
Incorporated by reference to consulting Fig. 3, Fig. 4, Fig. 5.Fig. 3 is the transversary schematic diagram of the dual-axle motor of the preferred embodiment of the present invention, Fig. 4 is the transversary schematic diagram of the mover core of the dual-axle motor of the preferred embodiment of the present invention, and Fig. 5 is the transversary schematic diagram of the stator core of the dual-axle motor of the preferred embodiment of the present invention.Wherein, stator core 2 comprises eight stator poles 21 that stator yoke 22 and stator yoke 22 inwardly protrude out.In lateral cross section, stator yoke 22 periphery is square, inside encloses for annular.Each stator poles 21 protrudes out formation five stator tooths 210 inwardly, and these stator tooths 210 extend vertically.Stator tooth 210 in each stator poles 21 has fixed teeth distance.A cylindrical space is surrounded in these stator tooths 210.
On the corner of stator core 2, respectively offer a through hole 20.First section 31, the relative axial position of stage casing 32 and rear 34 is also corresponding offers through hole.Four latches 30 run through these through holes and stator core 2 and housing 3 are fixed, and detachably.Then make whole motor mould change soon thus, can suitably adjust motor length in the axial direction according to the size of axial load.In other some embodiments, the through hole of latch 30 and correspondence is minimum reduces to two.
Mover core 1 and mover axle 4 are arranged in this cylindrical space.Mover core 1 comprises mover yoke, and the cross section of this mover yoke is annular.Mover core 1 also comprises 50 mover teeth 10 be equally spaced that the whole periphery by mover yoke protrudes out, and namely mover tooth 10 also has fixed teeth distance.
The facewidth W2 of said stator tooth 21 is equal with the facewidth W1 of mover tooth 10, to make location in the axial direction comparatively accurate.In other some embodiments, the facewidth W2 of stator tooth and the facewidth W1 of mover tooth also can be unequal.
Thin shape air gap is formed between enclosing in the periphery of mover tooth 10 and stator tooth 210.The tooth pitch of mover tooth 10 is identical with the angle of circumference corresponding to the tooth pitch of stator tooth 210, is constant θ
0.Because air gap is very thin, the thus tooth pitch L of mover tooth 10
pwith the tooth pitch L ' of stator tooth 210
proughly the same.Or in other some embodiments, make the tooth pitch L of mover tooth 10
pwith the tooth pitch L ' of stator tooth 210
pidentical, and its to distinguish corresponding angle of circumference roughly the same.The fine difference that thin shape air gap causes is negligible.
Due to above-mentioned setting, make when any one stator tooth 210 in any one stator poles 21 and mover tooth 10 synchronously positive right or wrong open, namely when any one stator tooth 210 in any one stator poles 21 and any one mover tooth 10 just pair time, other all stator tooths 210 in this stator poles 21 are all just right with a mover tooth 10; When any one stator tooth 210 in any one stator poles 21 staggers with any one mover tooth 10, other all stator tooths 210 in this stator poles 21 all stagger with a mover tooth 10.That is, between the mover tooth 10 that all stator tooths 210 of a stator poles 21 are equal with corresponding, angulation θ is identical.Refer to Fig. 6, " corresponding mover tooth 210 " refers to, when specifying a certain stator tooth 210 corresponding with a certain mover tooth 10, N number of stator tooth 210 of the clockwise direction side of this stator tooth 210 is all corresponding with N number of stator tooth 210 of this mover tooth 10 clockwise direction side, and wherein N is positive integer.Such as in figure 6, when specifying stator tooth 210a corresponding with mover tooth 10a, first stator tooth 210b of stator tooth 210a clockwise direction side is also corresponding with first mover tooth 10b of mover tooth 10a clockwise direction side, and can be by that analogy.Directly specify in other words according to identical clockwise or counter clockwise direction continuous print (N+1) individual stator tooth and (N+1) individual mover tooth correspondence, these sayings are all equivalent.
Wherein, when this angle θ is zero, namely so-called stator tooth 210 is just right with mover tooth 10; When this angle θ is non-vanishing, namely so-called stator tooth 210 staggers with mover tooth 10.
Preferably, the tooth pitch L of mover tooth 10
pfor its transverse tooth thickness L
stwice, that is its transverse tooth thickness L
swith space width L
eequal.Preferably, the tooth pitch L ' of stator tooth 210
pfor the twice of the transverse tooth thickness of mover tooth 10, that is the transverse tooth thickness of mover tooth 10 is equal with space width.These arrange and dual-axle motor of the present invention location in the circumferential can be made more accurate.
Referring to Fig. 7, is the stator core of the dual-axle motor of this preferred embodiment and the transversary schematic diagram of mover core.In the present embodiment, rectify two right stator poles by two at diameter two and be divided into one group.For ease of distinguishing and describing, rear for grouping eight stator poles are denoted as again a and a ' (A group), b and b ' (B group), c and c ' (C group), d and d ' (D group).With group two stator poles on stator tooth 210 synchronously with mover tooth 10 just to stagger, stator tooth 210 synchronously from mover tooth 10 just to the different stator poles staggered then same group.
Each stator poles is wound with conductive coil 5, the magnetic field produced when being energized based on conductive coil can attract and make the principle that mover core moves to the position that magnetic resistance is minimum, when the conductive coil 5 in A group be energized, other group no powers time, mover axle 4 can move to the minimum position of magnetic resistance, the position namely shown in Fig. 3 and Fig. 7 under magneticaction.Wherein, after conductive coil 5 on stator poles a and stator poles a ' is energized, (i.e. the sensing center of circle, N pole of a magnetic pole, the N pole of another magnetic pole deviates from the center of circle) that its field pole encouraged is contrary relative to ground circumference, to form the less closed path of magnetic resistance.Now, the stator tooth of A group 210 is just right with mover tooth 10, and stator tooths 210 and the mover tooth 10 of other groups stagger certain angle, and between the mover tooth 10 that in B, C, D group, stator tooth 210 is equal from corresponding, angulation θ is different.This set can referred to as the four phase ends of the earth.
Now, if to the power-off of A group, and to the energising of D group, then, under magneticaction, mover axle 4 can be rotated counterclockwise, until the stator tooth 210 of D group is just right with mover tooth 10; Now, if to the power-off of A group, and to the energising of B group, then, under magneticaction, mover axle 4 can turn clockwise, until the stator tooth 210 of B group is just right with mover tooth 10.After conductive coil 5 in each stator pole groups is energized, the final position that mover axle 4 rotates can be described as a rotational positioning point.
For making these rotational positioning points can the whole circumference of uniform fold, what those skilled in the art will readily understand is, can the stator tooth 210 of A group and mover tooth 10 just pair time, adjust the position of other stator tooths, the stator tooth 210 that other are organized can form an arithmetic progression with corresponding mover tooth 10 angulation θ.Such as, in the present embodiment, angle of circumference θ corresponding to 50 the mover teeth 10 i.e. tooth pitch of mover tooth 10 is had altogether
0be 7.2 degree, angulation θ between equal with the corresponding mover tooth 10 of the stator tooth 210 of B, C, D group therefore can be made to be respectively 1.8 degree, 3.6 degree and 5.4 degree.The tolerance of this arithmetic progression is 1.8 degree, namely 7.2 degree 1/4th.
', b and b ' (be set to one group, b, b ', d and d ' are set to one group in other some embodiments, can be set to the two-phase ends of the earth, as by a, a.When a stator pole groups stator tooth 210 and mover tooth 10 just pair time, the stator tooth 210 of another stator pole groups is θ with corresponding mover tooth 10 angulation θ
01/2nd, namely 3.6 degree.
In other some embodiments, it is easily understood that two-phase four pole can also be set to similarly, like this when a stator pole groups stator tooth 210 and mover tooth 10 just pair time, the stator tooth 210 of another stator pole groups is also θ with corresponding mover tooth 10 angulation θ
01/2nd.
It is easily understood that in other some embodiments, the number of mover pole also can be other numbers outside 50.In extreme circumstances, the group number of stator poles can be reduced to two, and like this, mover axle at least has two rotational positioning points in the circumferential, can complete the drive actions of circumference, and have self-startup ability.Stator tooth number in each stator poles can be reduced to two.Each stator pole groups can only include a stator poles, but preferably scheme is that each stator pole groups at least comprises two stator poles, to form the as far as possible little loop of magnetic resistance; When each stator pole groups comprises and only comprises two stator poles being positioned at diameter two ends, each stator core one has even number stator poles.Better scheme is that often group comprises 2
nindividual stator poles, wherein n be more than or equal to 1 integer, such as often group can comprise 2,4 or 8 stator poles etc.It is easily understood that in other some embodiments, the number of the stator poles that each stator pole groups comprises also can not be identical, also can be 2
nnumber in addition.
The driving that what above terminal described is in the circumferential.Drive principle is in the axial direction similar with it, because after the curvature of the circumference by above-mentioned rotation infinitely increases, above-mentioned rotation circumferentially also can be regarded as the translation in circumferentially tangential direction.
As shown in Figure 8, be position relationship schematic diagram in the axial direction when the stator core of the dual-axle motor of another preferred embodiment of the present invention and mover core are in a certain relative position.Wherein, namely left and right directions corresponds to axially.The dual-axle motor of this embodiment is provided with five mover cores altogether, and five stator cores 1a, 1b, 1c, 1d and 1e.These five mover cores are divided into E group (comprise mover core e, e ' and e ") and F group (comprising mover core f and f ').After the energising of E group, F group no power, the axial location relation of mover core and stator core namely as shown in Figure 8.When the energising of E group, F group no power, stator core 1a, 1c and 1e produce excitation field, and stator core 1b and 1d does not produce excitation field.Because E group mover core is at a distance of the close together of stator core 1a, 1c and 1e, therefore stator core 1a, 1c and 1e mainly produces magnetic force to E group mover core, attracts E group mover core and drives whole mover axle and other mover cores together to move to the relative position shown in Fig. 8 towards the position that magnetic resistance is minimum.Motion is when putting in place, and each mover core of E group mover core faces with a stator core respectively, namely mover core e and stator core 1a faces, mover core e ' and stator core 1c faces, mover core e " and stator core 1e face.And mover core f and stator core 1b is staggered, mover core f ' is staggered with stator core 1d.
Now, after making the power-off of E group, the energising of F group, stator core 1a, 1c and 1e do not produce excitation field, and stator core 1b and 1d produces excitation field.Because F group mover core is at a distance of the close together of stator core 1a, 1c and 1e, therefore stator core 1b and 1d mainly produces magnetic force to F group mover core, attracts F group mover core and drives whole mover axle and other mover cores together to move to the relative position shown in Fig. 9 left towards the position that magnetic resistance is minimum.Motion is when putting in place, and each mover core of F group mover core faces with a stator core respectively, and namely mover core f and stator core 1b faces, mover core f ' and stator core 1d faces.And mover core e and stator core 1a is staggered, mover core e ' and stator core 1c are staggered, mover core e " be staggered with stator core 1e.
The axial location relation of mover core and stator core namely as shown in Figure 9.Left and right directions in Fig. 9 corresponds to axially.
In Fig. 8, identical with the axial dipole field distance L between the mover core organized and corresponding stator core, L is with sign symbol.Being meant to of " corresponding stator core ", when specifying a certain mover core corresponding with a certain stator core, M mover core of the axial side of this mover core is also corresponding with M the stator core of phase the same side of this stator core axis.Such as, when specifying mover core f corresponding with stator core 1b, second mover core f ' of one end, right side of mover core f is also F group, and on the right side of stator core 1b, second stator core of one end is stator core 1c, and therefore mover core f ' is also corresponding with stator core 1c.Here why specify mover core f corresponding with stator core 1b, be because in other some embodiments, mover core f can also be specified corresponding with stator core 1d.Correspondingly, when specifying mover core f corresponding with stator core 1d, mover core f ' is then corresponding with second stator core of stator core 1d right.Stator core Limited Number in Fig. 8, makes stator core 1d right corresponding with mover core f ' without displayable stator core.But easily imagination ground in other embodiments, when increase as corresponding in stator core is several, then stator core obviously can be had corresponding with it.
When conductive coil 5 in any one stator poles in any one stator core is energized, mover axle 4 also can be made to move to the axial location point of correspondence in the axial direction.This axial location point is the just right position of the center line of the center line of this stator core and mover core.In extreme circumstances, the group number of stator core can reduce to three, and often group can only include a stator core.Like this, mover axle at least has three translation anchor points in the axial direction, can complete axial drive actions.
Because motion has relativity, therefore stator core can also be exchanged mutually with the axial location of mover core, namely mover core is set at the axial correspondence position of stator core, and anti-stator core is set at the axial location of mover core, so also can reach the axial location effect of identical (being only that direction is contrary).When each mover core group only includes a mover core, the spacing between adjacent each mover core is identical, still identical after exchange; And when each mover core group comprises plural mover core, the spacing between adjacent each mover core then can be variant, be not namely equidistantly, the spacing of the adjacent stator core after exchange is also thus different.As shown in Figure 10, be position relationship schematic diagram in the axial direction when the stator core of the dual-axle motor of a preferred embodiment more of the present invention and mover core are in a certain relative position, it obtain after can exchanging relative position by the mover core in Fig. 8 and stator core.
Figure 11 is the mover core of the dual-axle motor of the another preferred embodiment of the present invention and the position relationship schematic diagram axially of stator core.As shown in the figure, mover core has 5, is respectively 1a, 1b, 1c, 1d and 1e.Stator core has 3, is respectively A, B and C, and it forms a stator core group all separately.Its feature in certain position is: mover core 1c aligns with stator core B, mover core 1b stagger with stator core A and with have on the right side of stator core A overlapping, mover core 1d stagger with stator core C and with have on the left of stator core C overlapping.If mover core is equal with the facewidth of stator core and be w, be spaced apart d between stator core and adjacent stator core, between mover core and adjacent mover core, interval is also preferably w, then have d=m*w-w/n, wherein m, n=1,2,3 ...
For Figure 11, if give stator core C, B, A excitation energising (during certain stator core energising, other stator core power-off) successively, then mover core and mover axle can move right; Otherwise if give the energising of stator core A, C, B excitation successively, then mover core and mover axially move left.
Based on the above-mentioned description to dual-axle motor of the present invention, the method for Two axle drive of the present invention can correspondingly be summarized as:
Make conductive coil 5 alternate energisation of at least two the different stator cores 2 distributed vertically, with the magnetic attraction axial at least one generation being fixed on multiple mover cores 1 that mover axle 4 also distributes vertically, and then drive the translation vertically of mover axle 4;
Make the conductive coil 5 at least one stator poles 21 of at least one stator core 2, and alternate energisation between the conductive coil 5 at least one other stator poles 21 of at least one stator core 2, with the magnetic attraction that at least one generation upper to stator poles 21 is circumferential, and then mover axle 4 is driven circumferentially to rotate.
So far, those skilled in the art can according to Content Implementation the present invention of above specification.Stator poles is creatively subdivided into stator tooth by the present invention, by controlling the break-make of conductive coil, mover can be made in the rotary motion of circumference; And at least three stator cores are set simultaneously and at least three mover cores can make mover in the translational motion of circumference, namely achieve biaxial movement, and there is less magnetic leakage simultaneously.Compared with traditional dual-axle motor, dual-axle motor of the present invention is not owing to using screw mandrel or travelling gear, and thus efficiency is high, precision is high.
These are only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a dual-axle motor, it is characterized in that, comprise the shell (3), the mover axle (4) be arranged in described cavity (3S), at least three the mover core groups that form cavity (3S), and at least three stator cores (2) be arranged on described shell (3), wherein:
Described mover axle (4) extends vertically and also circumferentially can rotate relative to described shell (3) translation vertically; Each described mover core group comprises at least one mover core (1), it is upper and spaced apart vertically that described mover core (1) fixed cover is located at described mover axle (4), and described mover core (1) outwards protrudes out formation circumferentially spaced multiple mover tooth (10);
Each described stator core (2) comprises at least two stator pole groups, each described stator pole groups comprises at least one stator poles (21), described stator poles (21) is inwardly protruded out by the stator yoke (22) of described stator core (2) and is formed, and described stator poles (21) is wound with conductive coil (5);
Described mover core (1) with group can face with a described stator core (2) simultaneously in the axial direction respectively, when mover core group described in any one faces with a described stator core (2) in the axial direction respectively, the described mover core of other groups is staggered with described stator core (2) in the axial direction;
Described multiple stator tooth (210) with the described stator poles (21) of group can face with multiple described mover tooth (10) simultaneously in the circumferential respectively; When described multiple stator tooth (210) of stator pole groups described in any one faces with multiple described mover tooth (10) in the circumferential respectively, described multiple stator tooth (210) of the described stator poles of other groups is staggered with described mover tooth (10) in the circumferential.
2. dual-axle motor as claimed in claim 1, it is characterized in that, the transverse tooth thickness of described stator tooth (210) is equal with the transverse tooth thickness of described mover tooth (10).
3. dual-axle motor as claimed in claim 2, it is characterized in that, the tooth pitch of described mover tooth (10) is the twice of described mover tooth (10) facewidth, and the tooth pitch of described stator tooth (210) is the twice of described stator tooth (210) facewidth.
4. dual-axle motor as claimed in claim 1, it is characterized in that, the facewidth of described stator tooth (210) is equal with the facewidth of described mover tooth (10).
5. dual-axle motor as claimed in claim 1, it is characterized in that, described shell (3) comprises one first section (31), at least two stage casings (32) and a rear (33), the axial two ends of a described stator core (2) form dismountable connection with described first section (31) and a described stage casing (32) respectively, the axial two ends of a described stator core (2) form dismountable connection with described rear (33) and a described stage casing (32) respectively, every two adjacent described stage casings (32) form dismountable connection with the axial two ends of a described stator core (2) respectively.
6. dual-axle motor as claimed in claim 5, it is characterized in that, at least two latches (30) are run through respectively and are fixedly connected with described first section (31), described stage casing (32), described rear (33) and described stator core (2).
7. dual-axle motor as claimed in claim 1, it is characterized in that, when the described stator tooth (210) of a described stator pole groups faces with multiple described mover tooth (10) in the circumferential, the described stator tooth (210) in stator pole groups described in other each and between corresponding described mover tooth (10) angulation all identical.
8. dual-axle motor as claimed in claim 1, it is characterized in that, when the described stator tooth (210) of a described stator pole groups faces with multiple described mover tooth (10) in the circumferential, the described stator tooth (210) in stator pole groups described in other each and between corresponding described mover tooth (10) angulation can form arithmetic progression.
9. as the dual-axle motor in claim 7 to 8 as described in any one, it is characterized in that, each described stator core (2) is to projecting inward formation stator poles (21) described in even number altogether, described stator poles (21) is uniformly distributed circumferentially, and each described stator pole groups comprises two the described stator poles (21) being positioned at diameter two ends.
10. a method for Two axle drive, is characterized in that, comprising:
Make conductive coil (5) alternate energisation of at least three the different stator cores (2) distributed vertically, with the magnetic attraction axial at least one generation being fixed on the upper multiple mover cores (1) also distributed vertically of described mover axle (4), and then drive the translation vertically of described mover axle (4);
Make the conductive coil (5) at least one stator poles (21) of stator core described at least one (2), and alternate energisation between the conductive coil (5) at least one other described stator poles (21) of stator core described at least one (2), with the magnetic attraction that at least one generation upper to described stator poles (21) is circumferential, and then described mover axle (4) is driven circumferentially to rotate.
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| CN201410436996.0A CN105375713B (en) | 2014-08-29 | 2014-08-29 | Dual-axle motor and Two axle drive method |
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| CN105375713B CN105375713B (en) | 2018-02-16 |
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| CN201846217U (en) * | 2010-11-11 | 2011-05-25 | 东南大学 | Linear rotating permanent magnetic actuator |
| CN102843015A (en) * | 2012-09-06 | 2012-12-26 | 东南大学 | Linearly-rotating two-degrees-of-freedom magnetic levitation bearing-free permanent magnetic actuator |
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| JPH0686515A (en) * | 1992-08-28 | 1994-03-25 | Asmo Co Ltd | Hybrid stepping motor |
| CN1108015A (en) * | 1993-11-19 | 1995-09-06 | 东方电机株式会社 | Linear-rotative combined stepped electric motor |
| TWI296875B (en) * | 2002-04-25 | 2008-05-11 | Step motor with multiple stators | |
| CN101355290A (en) * | 2008-09-11 | 2009-01-28 | 上海理工大学 | Dual radial directions magnetic field reaction type straight-line rotating stepper motor |
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| CN105375713B (en) | 2018-02-16 |
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