CN107370330A - A kind of screw motor - Google Patents
A kind of screw motor Download PDFInfo
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- CN107370330A CN107370330A CN201710251272.2A CN201710251272A CN107370330A CN 107370330 A CN107370330 A CN 107370330A CN 201710251272 A CN201710251272 A CN 201710251272A CN 107370330 A CN107370330 A CN 107370330A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
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Abstract
The invention provides a kind of screw motor, including stator module, mover assembly, stator module includes at least one set of motor stator, every group of stator is by stator magnetic circuit, magnetic pole and magnetic field, stator cage etc. is formed, mover assembly includes at least one set of electric mover, every group of mover is by mover axle, mover magnetic circuit and magnetic pole and magnetic field, mover axle supporter etc. is formed, every group of magnetic pole of the stator, teeth groove or winding axially surround stator inner wall screw arrangement, form stator helical magnetic field, every group of mover magnetic pole, teeth groove or winding axially surround mover axle outer wall screw arrangement, form mover helical magnetic field, the present invention has structure simpler, cost is lower, control is more convenient, it is more efficient, the features such as command displacement precision is high, available for the place for needing linear motion or screw.
Description
Technical field
The invention belongs to electro-mechanical arts, and in particular to screw motor.
Background technology
Now in mechanical movement and control field, with the diversified of forms of motion and desired raising is controlled, to more certainly
Increasingly increased by the demand of degree motor and its Direct Driving System, as the screw motor of a kind of two-freedom, when to not Tongfang
To when entering row constraint or constraint relief, rotation, straight line and screw can be exported, can reduce system unit, improve efficiency,
Reliability and dynamic property, and manufacture and maintenance cost are reduced, attention extensively both domestic and external is obtained, in helical pressure
Machine, twist bit, spiral drilling machine, turning equipment, spiral lift, screw mixer, step motion control, electromagnetical spiral propeller,
Had a wide range of applications instead of pneumatic linear actuator hydraulic cylinder etc..
Distinguished from operation principle, screw motor mainly has induction type, switched reluctance and permanent magnetism three major types.From knot
Distinguished in structure and control feature, mainly there are two classes：One kind is by a rotary motion motor and a linear motion motor series connection
The screw motor combined, its mover are made up of the conductive layer of iron core and iron core surface, such as：French scholar J.Fleszar is carried
A kind of induction type rotation-linear electric motors gone out etc., switching magnetic-resistance rotation-straight line that Romanian scholar Lorand Szabo are proposed
Motion motor, stator are three traditional 8 pole switching reluctance motor iron cores and 4 phase concentratred windings, and mover is by multiple axial series
6 pole switching reluctance motor rotors composition, between the axial distance of stator lasmination unit and the axial distance of mover stacked wafer cells
With particular kind of relationship, the power supply order of stator winding is controlled, rotation, straight line or the screw of motor can be achieved.Shanghai science and engineering
University scholar is happy bravely to propose another rotation-linear switched reluctance motor, and stator is divided into the olinear motion part of axial series
With rotary motion part, two parts magnetic circuit mutually decouples, etc..The rotation of this kind of screw motor and olinear motion part have respectively
There is independent excitatory structure.Second class is that rotation and olinear motion part share an excitatory structure, most commonly mover table
Face circumferentially with the alternatively distributed permanent magnet array of axis both direction N, S, such as：Southeast China University scholar gold equality proposes one
Three stators of kind, polyphase windings, the rotation-linear electric motors of " checkerboard type " permanent magnet are posted on mover surface.And for example：Lille, France science and technology
University scholar G.Krebs propose it is a kind of have interior external stator, rotation-permanent magnet linear motor of concentratred winding, its rotor for sky
Heart cup structure, surface mounted " checkerboard type " permanent magnet array, two sets of stators share a set of rotor magnetic steel, common flux coupled be present and close
System.
Although these above-mentioned screw motors can realize rotary motion, linear motion or screw, compared to existing
Still complicated, volume is big, manufacture is low with maintenance cost height or efficiency etc. be present in electric rotating machine.
The content of the invention
The technical problem to be solved in the present invention is：Seek a kind of simple in construction, manufacture and safeguard the spiral of easy low cost
Motion motor（Or abbreviation screw motor）.
To reach above-mentioned purpose and solving above-mentioned technical problem, technical scheme proposed by the present invention is：
A kind of screw motor, including stator module, mover assembly, the stator module include at least one set of motor stator,
Every group of stator is made up of stator magnetic circuit, paired magnetic pole and magnetic field, stator cage etc., and the mover assembly includes at least one set of motor
Son, every group of mover are made up of mover axle, mover magnetic circuit and paired magnetic pole and magnetic field, mover axle supporter etc., and the magnetic pole and magnetic field is
By permanent magnet and iron core or winding and iron core form caused by magnetic pole and magnetic field or by alternating current magnetic field in electric conductor induced electricity
Magnetic pole and magnetic field caused by stream, it is characterised in that every group of magnetic pole of the stator, teeth groove or winding axially surround stator inner wall spiral cloth
Put, lead angle is positive and negative 1 ° -89 °, forms stator helical magnetic field, every group of mover magnetic pole, teeth groove or winding axially surround dynamic
The spiral shell in sub- axle outer wall screw arrangement, positive and negative 1 ° -89 ° of lead angle, formation mover helical magnetic field, stator field and mover magnetic field
It can be clockwise or counterclockwise to revolve direction, and the hand of spiral of magnetic pole of the stator and mover magnetic pole is basically identical, stator magnet
The lead angle size of pole and mover magnetic pole difference is no more than 5 °；Air gap, stator or mover length between stator and mover be present
It is dynamic in constraint according to depending on being interior mover or outer mover pattern, long mover or short mover pattern and the axial stroke of needs
Under the conditions of the axial displacement of son, mover according to the sense of current, can do the continuous forward and reverse rotation of 360 ° of scopes in a circumferential direction,
In the case where constraining direction of rotation displacement condition, mover can do linear reciprocating motion according to the sense of current, release axial displacement constraint
Under conditions of the displacement constraint of direction of rotation, mover can do forward-reverse spiral motion according to the sense of current or the magnetic pole hand of spiral, electricity
Electromechanical source uses dc source or the multiphase alternating power supply of two-phase and the above.
It is by the magnetic pole of the stator and rotor magnetic pole component of existing various electric rotating machines on the spirit of this screw motor
The angle of one suitable size of stretching is reversed to same direction and lift is formed, magnetic pole, teeth groove, the winding of every group of stator and mover
Around motor center axis spiral angle can be less than 360 °, can also be more than 360 °, can be wall scroll spiral way or
A plurality of spiral way.The various winding constructions of various screw motors and existing various electric rotating machines and the winding construction of linear electric motors
It is essentially identical.Above-mentioned screw motor also includes the tactic pattern such as synchronous, asynchronous.For above-mentioned various screw motors, pass through setting
Or the constraints of releasing stator or mover can realize external stator, interior mover pattern and inner stator, outer mover pattern, can also pass through
Design magnetic pole, winding length or the multigroup magnetic pole winding of series connection realize the long Structure of mover of short mover long stator or short stator, adjust institute
Stroke size is needed, when electromagnetism winding is placed on mover, it is necessary to configure power transmission sliding ring, slideway or transverter.For mover branch
Support the configurable reciprocating motion bearing of bearing.It can be used for the power supply for forming helical magnetic field according to different electric machine structures and purposes
Dc source, alternating source or the pulse power, can be the polyphase source of two-phase and the above, existing various electric rotating machines and straight line
The power-supply system and control system of motor can use as needed.The mode of axial force produced by such motor, available for putting down
Weighing apparatus is loaded with the electric rotating machine of large axial force, such as electrical machine for vacuum pump.
A kind of above-mentioned screw motor, improved technical scheme is, described to axially surround stator inner wall or mover
It is provided between every group of stator of axle outer wall screw arrangement or the top magnetic pole and terminal magnetic pole of mover magnetic pole and between each pair of magnetic pole
Magnetic conduction crossover, magnetic conduction crossover are magnetic conductors, and magnetic conductor can be bar shape, arc body or cylindrical body, and magnetic conduction crossover is by magnetic circuit shape
Into closed loop, the magnetic crossover of the interior mover or inner stator of screw motor is arranged on the magnetic circuit on the inside of interior mover or inner stator magnetic pole,
Magnetic loop is formed, when inner stator or interior mover inherently magnetic conductor, is just not required to separately add magnetic conduction crossover；Outside screw motor
The magnetic crossover of mover or external stator is arranged on the magnetic circuit on the outside of outer mover or external stator magnetic pole, forms magnetic loop,
A kind of above-mentioned screw motor, alternative technology scheme are that the screw motor is a kind of induction type
Screw motor, the stator magnetic circuit, magnetic pole are made up of iron core and winding, and the mover magnetic pole is sleeved on mover axle
Spiral magnetic pole caused by vortex of the conductive material under stator field sensing.The conductive material has preferable electric conductivity
Metal material or alloy material or composite.The mover magnetic pole can also be the magnetic conduction conductive material being sleeved on mover axle
Spiral magnetic pole caused by vortex under stator field sensing.The magnetic conduction conductive material be not only with good magnetic conductivity but also with
The metal material or alloy material or composite of preferable electric conductivity.Such a screw motor uses alternating source.
A kind of above-mentioned screw motor, alternative technology scheme are that the screw motor is a kind of sense
Formula screw motor is answered, the stator magnetic circuit, magnetic pole are made up of iron core and winding, and the mover outer shaft sleeve is equipped with iron core, iron
Teeth groove is provided with core, is provided with electric conductor in teeth groove, each teeth groove and each electric conductor axially surround mover axle outer wall screw arrangement, spiral shell
Rotation direction is consistent with the hand of spiral of stator teeth groove and stator winding, and lead angle is equal；Short circuit is additionally provided with mover iron core to lead
Body, short-circuit conductor are to axially surround mover iron core slot inside spin arrangement, the hand of spiral and stator teeth groove and the spiral shell of stator winding
Rotation is in opposite direction, and lead angle is equal in magnitude, and short-circuit conductor is connected with the electric conductor in each mover teeth groove, between each short-circuit conductor
Lead of screw be equal to stator winding axial effective length.Such a screw motor is using alternating source more than two-phase.
A kind of above-mentioned screw motor, alternative technology scheme are that the screw motor is a kind of sense
Answer formula screw motor, the screw motor is a kind of induction type screw motor, the stator magnetic circuit, magnetic pole by
Iron core and winding are formed, and the mover axle is formed by the mover short axle hinge concatenation of more than one, in tandem outside every mover short axle
There is one group with last iron core, teeth groove is provided with each iron core, is provided with electric conductor in teeth groove, each teeth groove and each electric conductor axially surround
Mover axle outer wall screw arrangement, the hand of spiral is consistent with the hand of spiral of stator teeth groove and stator winding, and lead angle is equal；Respectively
Group mover iron core both ends are additionally provided with short-circuited conducting sleeve, and short-circuited conducting sleeve is connected with the electric conductor in each mover teeth groove, between each short-circuited conducting sleeve away from
From the axial effective length equal to stator winding, stator winding power supply uses multiphase alternating power supply.
A kind of above-mentioned screw motor, alternative technology scheme are that the screw motor is a kind of magnetic
Resistive screw motor, the stator magnetic circuit, magnetic pole are made up of iron core and winding, and the magnetic pole of the stator is salient-pole structure, institute
It is salient-pole structure to state mover magnetic pole, and mover, magnetic pole of the stator are conducting magnet cores, and stator magnet number of poles and mover number of magnetic poles are even number,
Such a screw motor can be directly using the multiphase alternating power supply of two-phase and the above or by controller and power inverter by direct current
Power convert is into multiphase switch power source.
A kind of above-mentioned screw motor, it is a kind of reluctance type screw motor that alternative technology scheme, which is,
Characterized in that, it is provided with permanent magnet each stator or mover magnetic pole.
A kind of above-mentioned screw motor, alternative technology scheme are that the screw motor is a kind of magnetic
Resistive stepping screw motor, the stator magnetic circuit, magnetic pole are made up of iron core and winding, and magnetic pole of the stator is salient-pole structure,
The magnetic pole of the stator end face teeth groove of more than one quantity is provided with stator salient poles magnetic pole end face along the centerline direction of magnetic pole, it is described
Mover magnetic pole is salient-pole structure, and mover, magnetic pole of the stator are magnetic conductors, and mover magnetic pole is opened on end face along the centerline direction of magnetic pole
There is a mover magnetic pole end face teeth groove of more than one quantity, the magnetic pole end face space width on magnetic pole of the stator is with space width with mover magnetic pole
On magnetic pole end face space width it is identical with space width.The stator winding power supply of such a screw motor can be passed through control by dc source
Device and power inverter provide multiphase switch power source.
A kind of above-mentioned screw motor, alternative technology scheme are that the screw motor is a kind of magnetic
Resistive stepping screw motor, permanent magnet is provided with each stator or mover magnetic pole.
A kind of above-mentioned screw motor, alternative technology scheme be, the screw motor be it is a kind of forever
Magnetic-type screw motor, the mover magnetic pole is made up of iron core and permanent magnet, and mover magnetic pole radially magnetizes, the stator
Magnetic pole is made up of stator core, stator winding.The mover of such a screw motor can also be the installation " mouse in its permanent magnetic rotor
Cage " winding, form asynchronous starting and permanent magnet synchronous screw motor.Such a screw motor stator winding uses alternating source.
A kind of above-mentioned screw motor, alternative technology scheme be, the screw motor be it is a kind of forever
Magnetic-type screw motor, the magnetic pole of the stator are made up of iron core and permanent magnet, and magnetic pole of the stator radially magnetizes, and mover is by moving
Sub- iron core, mover winding and commutator are formed, and the length of the mover of the magneto screw motor, stator and commutator is according to being
Depending on interior mover or outer mover pattern and the axial stroke of needs.Such a screw motor mover winding uses dc source.
A kind of above-mentioned screw motor, alternative technology scheme are that the screw motor is a kind of straight
Excitation-type screw motor is flowed, the magnetic pole of the stator and magnetic circuit are made up of iron core and winding, and stator power is multiphase alternating electricity
Source, the mover assembly are made up of mover iron core, mover Exciting Windings for Transverse Differential Protection and collector ring, and mover power supply is dc source, described straight
The length of the mover assembly of streaming screw motor, stator and collector ring is according to being interior mover or the axle of outer mover pattern and needs
To depending on stroke.Carbon brush is identical with the motor pattern of mover relative to the movement locus on collector ring.
A kind of above-mentioned screw motor, alternative technology scheme are that the screw motor is a kind of sense
Answer formula screw motor, the stator is made up of iron core and winding, and the mover magnetic pole is coiling mover magnetic pole, mover around
Group line end draws Access Control loop, mover, stator and the collector ring of the induction type screw motor by collector ring and brush
Length according to depending on being interior mover or outer mover pattern and the axial stroke of needs.Such a screw motor stator winding access
Alternation polyphase source.
A kind of above-mentioned screw motor, alternative technology scheme are that the screw motor is a kind of nothing
Brush direct current permanent magnetism screw motor, the stator is made up of iron core and winding, and the mover is permanent magnet, in mover and
Equipped with rotor position detection and stator winding switch controller between stator winding.Such a screw motor stator winding passes through switch
Controller accesses dc source.
A kind of above-mentioned screw motor, alternative technology scheme be, every group of stator, mover magnetic pole,
Screw arrangement is wall scroll screw arrangement vertically for teeth groove or winding, forms helical magnetic field.Hurricane band conductor and short circuit in teeth groove
Connected between conductor conductive.
A kind of above-mentioned screw motor, alternative technology scheme be, every group of stator, mover magnetic pole,
Screw arrangement is a plurality of screw arrangement vertically for teeth groove or winding, forms helical magnetic field.The conductor of each hurricane band arrangement with
Conductive, mutually insulated between the short-circuit conductor of each bar hurricane band arrangement is connected between short-circuit conductor.
A kind of above-mentioned screw motor, alternative technology scheme are that the stator module or mover assembly are
By two groups of stator modules or mover assembly provided in series, the magnetic pole and winding hand of spiral phase of two stator modules or mover assembly
Anti- or identical, lift angle size is identical.Two groups of stators of control input or the size of current of mover assembly and direction can obtain not respectively
Same output campaign pattern and different output characteristics.
A kind of above-mentioned screw motor, improved technical scheme are that the stator module or mover assembly are by two
The magnetic pole and winding hand of spiral phase of group stator module or mover assembly parallel spiral arrangement, two stator modules or mover assembly
Anti- or identical, lift angle size is identical.Two groups of stator modules can be that like pole is arranged in parallel or opposite pole is in parallel
Arrangement.Respectively two groups of stators of control input or the size of current of mover assembly and direction can obtain different output campaign patterns and
Different output characteristics.
A kind of above-mentioned screw motor, alternative technology scheme are that the screw motor is that a kind of spiral pushes away
Stepper motor, it is followed by the stator with being serially connected with magnetic switch on each winding on the close stator module of mover on power supply,
The mover is magnetic conductor, and mover periphery is inlaid with permanent magnet, and permanent magnet connects anterior or rear portion one when close to magnetic switch
The circuit of winding.Mover can be short mover, and it is first-class that the front end of mover magnetic conductor can install jump bit.
A kind of above-mentioned screw motor, alternative technology scheme are that the screw motor is that a kind of spiral pushes away
Stepper motor, is provided with non-magnetic casing on the inwall of the stator and the close magnetic pole of the stator of mover, non-magnetic casing it is interior
It is provided with two conducting rings on wall in each winding width vertically, is insulated between two conducting rings, each two conducting ring concatenation
It is connected to after on stator winding loops on power supply, conducting ring brush is provided with the mover, each conducting ring brush is connected anterior
Or two conducting rings of rear portion winding, mover are magnetic conductors, the front end of mover magnetic conductor can install impact tup.
A kind of above-mentioned screw motor, alternative technology scheme are to be fixed with screw rod in one end of mover axle,
Nut is housed on screw rod.Self-locking action can be played when nut is fixed in frame.
A kind of above-mentioned screw motor, alternative technology scheme are to be loaded in the mover axle with being promoted
Between thrust bearing is installed, thrust bearing can keep loading the screw of original linear motion and motor.
A kind of above-mentioned screw motor, alternative technology scheme be, the mover axle and stator support it
Between electromagnetic brake device is installed, electromagnetic brake is used to brake.
A kind of above-mentioned screw motor, alternative technology scheme are that interior mover or inner stator axle is hollow shaft.
Above-mentioned various screw motors, it can be used when accessing power supply as motor, when to mover input screw machine
Tool power and to winding input exciting current when can be used as generator.
The mover or stator of above-mentioned each induction type screw motor can be magnetic material, such as mild steel；Can also be non-magnetic
Property material, such as copper or aluminium；It can also be composite conducting permeability magnetic material.Stator core is formed by punching silicon-steel is stacked, or according to
Patent 2011800658880.5（The manufacture method of electric rotating machine spiral iron core and the manufacture device of rotary motor iron core）, or specially
Profit 201410640562.2（The manufacture device and manufacture method of high efficiency motor spiral shape stator core）Technique punching around folded and
Into, or use non-crystaline amorphous metal permeability magnetic material to be process.
Beneficial effect：A kind of screw motor of the present invention, due to being to existing electric rotating machine according to electric machine theory
Transformation forms, and magnetic field is still closed circuit magnetic field, such that the screw motor radial circumference stress is still simpler compared with balance and stability, structure
Single, manufacture is easier, and cost is lower, and control is more convenient, more efficient, using more extensive；Because mover can realize screw,
Command displacement precision can be made higher.
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings：
Fig. 1 is a kind of basic principle schematic of screw motor of the present invention.
Fig. 2 is a kind of principle schematic diagram of induction type screw motor of the present invention.
Fig. 3 is a kind of structural representation of magneto screw motor of the present invention.
Fig. 4（a）For an a kind of cross section structure schematic diagram of switched reluctance screw motor of the present invention, Fig. 4（b）For
The power inverter of the screw motor and the connection diagram of three-phase windings.
Fig. 5 is a cross section structure and principle schematic for a kind of reluctance type stepping screw motor of the present invention.
Fig. 6（a）For a kind of structural principle of bimorph transducer fractional-slot concentratred winding magneto screw motor of the present invention
Schematic diagram, Fig. 6（b）The connection diagram of power inverter and three-phase windings for the screw motor.
Embodiment
Accompanying drawing 1 is a kind of basic principle schematic of screw motor of the present invention.1A is the mover of screw motor one, 2B
For the expanded schematic diagram in the extremely caused magnetic fields of the stator N of screw motor one, 1B is the expansion of one section of spiral carrying object on mover 1A
Schematic diagram, when have on carrying object an electric current 1I by when, according to left hand rule（Motor rule）Understand, carrying object 1B will be by
One effect perpendicular to the F that makes a concerted effort in the carrying object direction.F can be analyzed to the axis 1X and and mover perpendicular to mover 1A with joint efforts
The tangent horizontal component of 1A circumference（Rotational component）F1 and axial thrust load F2, F1 parallel to mover 1A axis 1X can drive dynamic
Sub- 1A is rotated around mover axle center 1X with angular speed w, and F2 can drive mover 1A for linear motion with linear velocity v along mover axle center.W with
V resultant motion constitutes screws of the mover 1A around mover axle center 1X.
Fig. 2 is a kind of structural representation of induction type screw motor of the present invention.The screw motor is by stator magnetic circuit
B3, stator winding A1, B1, C1, C2 etc., stator magnetic conduction crossover B2；Mover 1A, mover conductor 1B1, mover conductive strips 1B2, motor
Housing C5, end cap C3, C6, rotation reciprocal bearing C4, C7 etc. are formed.Three-phase alternating current is inputted to stator winding A1, B1, C1 etc.
Source, understand sensing on the air gap and mover conductive strips 1B2 that formed between stator magnetic circuit B3 and mover 1A and form helical moving field,
Helical moving field can produce induced-current on mover conductor, and induced-current interacts with helical magnetic field, produces mover 1A
Raw screw.Magnetic conduction crossover B2 can be by stator winding C1 magnetic circuit and winding C2 communicated magnetic circuit, to reduce the end of magnetic circuit
Effect.
Fig. 3 is a kind of structural representation of magneto screw motor of the present invention.In figure outside permanent magnetic circuits 1 by annular forever
Long magnet NS（The N poles 1N of annular permanent magnnet, the S poles 1S of annular permanent magnnet）, N poles spiral pole shoe 2N, S pole spiral pole shoe 2S
Deng composition, 3 be spiral armature in figure, and for the conductor 3A screw arrangements on armature 3 in armature teeth groove, 4 be armature commutator, and 5N is
Positive brush, 5S are negative pole brush, and 6 be screw motor axle.When from brush 5N, 5S input DC power, in changing for commutator 4
To under effect, the armature supply under the spiral pole shoe of 2N poles is allowed to the armature supply under the spiral pole shoe of 2S poles in helical magnetic field
In the presence of produce the power perpendicular to armature conductor 3A, therefore, between rotor and mover can produce a screw.When
When outside permanent magnetic circuits 1 are fixed, axle 6 can produce a screw, change the direction of input current and can change screw
Direction.When in the only motion of limitation direction of rotation on axle 6, axle 6 can produce pure linear motion, and the direction for changing input current can
Change the direction of linear motion；When in the motion of axle 6 on the straight limit direction of motion, axle 6 can produce pure rotational motion, change
The direction of rotary motion can be changed by becoming the direction of input current.
Fig. 4（a）For an a kind of cross section structure schematic diagram of switched reluctance screw motor of the present invention, Fig. 4（b）For
The power inverter of the screw motor and the connection diagram of three-phase windings.The motor by stator core 1, mover iron core 2,
Two groups of three-phase stator windings 3,4,5 etc. are formed, and two groups of three-phase stator windings 3,4,5, radial direction phase are wound with six magnetic pole 1A of stator
To two windings link together, form a phase；Four magnetic poles of mover, gas is left between magnetic pole of the stator 1A and mover magnetic pole 2A
Gap.Each magnetic pole 1A of stator core 1 is around the outer surface screw arrangement of mover 2, and each magnetic pole 2A of mover iron core 2 is around the table of mover 2
Surface helix arranges that magnetic pole of the stator 1A and mover magnetic pole 2A are clock wise spirals arrangements, and lift angle is all 45 °, power inverter Fig. 4
（b）It is the power interface of switching magnetic-resistance screw motor, A, B, C are the three-phase windings of motor, and BG1, BG2, BG3 are that three switches are brilliant
Body pipe, three-phase windings A, B, C current switching is controlled respectively, three switching transistors side diodes in parallel are for afterflow
's.There is no coil on mover iron core 2, also without electric conductor, switching magnetic-resistance screw motor is according to magnetic resistance minimum principle, that is, magnetic
It is logical always to be closed along the minimum path of magnetic resistance, pull mover screw using the attraction of between cog.Because motor leans on magnetic
Work is hindered, so, it is unrelated with flow direction, it is unrelated with the sense of current.Rotor position detection means is also equipped with motor, is punctual
Switch each phase winding electric current and foundation be provided, position detecting device is controlled by controller to power inverter, controller by
Microprocessor forms with interface circuit.
Fig. 5 is a cross section structure and principle schematic for a kind of reluctance type stepping screw motor of the present invention.The electricity
Machine is by the small tooth 1C on stator core 1, mover iron core 2, the winding 1B being enclosed on magnetic pole of the stator 1A, magnetic pole of the stator 1A, mover iron
Small tooth 2C of the periphery of core 2 etc. is formed, and has six magnetic pole 1A in the inner circumferential of stator core 1, there is tooth 1C 5 small on each magnetic pole, in tooth
The heart is away from for 9 degree, and the facewidth is as between cog size, and two magnetic poles of radial direction partner magnetic pole, each magnetic pole 1A of stator core 1
And small tooth 1C arranges around the outer surface screw arrangement of mover 2, each small tooth 2C of mover iron core 2 around the perficial helical of mover 2, stator magnet
The pole 1A and its small tooth 1C and small tooth 2C of mover is clock wise spirals arrangement, and lift angle is all 60 °, due to small on magnetic pole of the stator 1A
The tooth 1C facewidth between cog as the small tooth 2C on mover 2, so, when the small tooth of a pair of magnetic poles of stator aligns with the small tooth of mover
When, the small tooth of another two pairs of magnetic poles differs 3 degree or -3 degree with the small tooth angle degree of mover.Three pairs of magnetic poles can be around three groups of winding groups in the present embodiment
Into three-phase windings.From pulse signal generator according to given setting constantly to stepper motor driver（Fig. 4（b））Send control
Signal, driver are powered according to the hand of spiral and motion state to three-phase windings again, that is, are inputted a pulse signal and changed switching
Power supply state, often to a step of control wave mover helical rotation one.
Fig. 6（a）For a kind of structural principle of bimorph transducer fractional-slot concentratred winding magneto screw motor of the present invention
Schematic diagram, Fig. 6（b）The connection diagram of power inverter and three-phase windings for the screw motor.Fig. 6（a）Shown spiral electricity
Machine is the pole fractional-slot concentratred winding of 6 groove 4, and stator winding 1 is made up of for two groups 1A, 1B（Fig. 6（a）In be expanded view）, every group of stator
Winding forms A, B, C three-phase windings by 6 coils, is composed in series per phase coil by two coils, and A phase coil arrival ends are A1,
The port of export is A2, and B phase coil arrival ends are B1, and the port of export is B2, and C phase arrival ends are C1, and the port of export is C2, and three coils export
End, which links together, forms wye connection.The pitch of coil is a slot pitch, and end turn is very short, saves copper cash and reduces copper again
Damage.Mover 2 rearranges long mover by several permanent magnets 2A is positive and negative, and the length of 4 permanent magnet arrangements is equal to 6 coils.Spiral shell
The drive circuit for revolving the winding of motor is the three-phase power inverter of switching transistor composition（Such as Fig. 6（b））, its three phase power is inverse
Become the waveform of device output as square wave, and each moment only has two phase coils and passes through electric current, switching transistor BG1-BG6 switching
Controlled by position detecting device, polarity and upset using Hall element 1AC, 1BC detection permanent magnet, the three of every group of motor stator
Individual Hall element is separately mounted to three advanced positions of three-phase coil.Two groups of stator winding 1A, 1B can be passed through identical phase sequence
Power supply, different phase sequences, different size of electric current can also be passed through, to produce different motion state etc..
Although combined preferred embodiment describes the device of the present invention, the invention is not restricted to as described herein
Concrete form, on the contrary, its object is to cover naturally fall into the scope of the invention of claims restriction
Various alternatives, remodeling, various features key element recombinant and derivative Combination nova and equivalents.
Claims (20)
1. a kind of screw motor, including stator module, mover assembly, the stator module is determined including at least one set of motor
Son, every group of stator include stator magnetic circuit, paired magnetic pole and magnetic field, stator cage, and the mover assembly includes at least one set of motor
Son, every group of mover include mover axle, mover magnetic circuit and paired magnetic pole and magnetic field, mover spring bearing, and the magnetic pole and magnetic field is by forever
Magnet and iron core or winding and magnetic pole and magnetic field caused by iron core composition or the induced electricity miscarriage in electric conductor by alternating current magnetic field
Raw magnetic pole and magnetic field, it is characterised in that every group of magnetic pole of the stator, teeth groove or winding axially surround stator inner wall screw arrangement, spiral shell
It is positive and negative 1 ° -89 ° to revolve lift angle, forms stator helical magnetic field, every group of mover magnetic pole, teeth groove or winding axially surround mover axle
The spiral side in outer wall screw arrangement, positive and negative 1 ° -89 ° of lead angle, formation mover helical magnetic field, stator field and mover magnetic field
To for clockwise or counterclockwise, magnetic pole of the stator is consistent with the hand of spiral of mover magnetic pole, the spiral of magnetic pole of the stator and mover magnetic pole
Lift angle size difference is no more than 5 °；Air gap, stator or mover length between stator and mover be present according to being interior mover or outer
Depending on mover pattern, long mover or short mover pattern and the axial stroke of needs, under the conditions of the axial displacement of constraint mover,
Mover according to the sense of current, can do the continuous forward and reverse rotation of 360 ° of scopes in a circumferential direction, in constraint direction of rotation displacement
Under the conditions of, mover can do linear reciprocating motion according to the sense of current, release axial displacement constraint and direction of rotation displacement constraint
Under conditions of, mover can do forward-reverse spiral motion according to the sense of current or the magnetic pole hand of spiral, and motor power uses dc source
Or the multiphase alternating power supply of two-phase and the above.
A kind of 2. screw motor according to claim 1, it is characterised in that it is described axially surround stator inner wall or
Between every group of stator of mover axle outer wall screw arrangement or the top magnetic pole and terminal magnetic pole of mover magnetic pole and between each pair magnetic pole
Provided with magnetic conduction crossover, magnetic conduction crossover is magnetic conductor, the magnetic crossover of the interior mover or inner stator of screw motor be arranged on interior mover or
On magnetic circuit on the inside of inner stator magnetic pole, magnetic loop is formed, the magnetic crossover of the outer mover or external stator of screw motor is arranged on outside
On magnetic circuit on the outside of mover or external stator magnetic pole, magnetic loop is formed.
3. a kind of screw motor according to claim 1 or 2, it is characterised in that the screw motor is one
Kind of induction type screw motor, the stator magnetic circuit, magnetic pole are made up of iron core and winding, the mover magnetic pole be sleeved on it is dynamic
Spiral magnetic pole caused by vortex of the magnetic conduction conductive material under stator field sensing on sub- axle, stator winding power supply use multiphase
Alternating source.
4. a kind of screw motor according to claim 1 or 2, it is characterised in that the screw motor is one
Kind induction type screw motor, the stator magnetic circuit, magnetic pole are made up of iron core and winding, and the mover outer shaft sleeve is equipped with iron
Core, teeth groove is provided with iron core, is provided with electric conductor in teeth groove, each teeth groove and each electric conductor axially surround mover axle outer wall spiral cloth
Put, the hand of spiral is consistent with the hand of spiral of stator teeth groove and stator winding, and lead angle is equal；It is additionally provided with mover iron core short
Road conductor, short-circuit conductor are to axially surround mover iron core slot inside spin arrangement, the hand of spiral and stator teeth groove and stator winding
The hand of spiral on the contrary, lead angle is equal in magnitude, short-circuit conductor is connected with the electric conductor in each mover teeth groove, each short-circuit conductor
Between lead of screw be equal to the axial effective length of stator winding, stator winding power supply uses multiphase alternating power supply.
5. a kind of screw motor according to claim 1 or 2, it is characterised in that the screw motor is one
Kind induction type screw motor, the stator magnetic circuit, magnetic pole are made up of iron core and winding, and the mover axle is by more than one
Mover short axle hinge concatenation is formed, and one group is equipped with outside every mover short axle with last iron core, and teeth groove, teeth groove are provided with each iron core
Interior to be provided with electric conductor, each teeth groove and each electric conductor axially surround mover axle outer wall screw arrangement, the hand of spiral and stator teeth groove
Consistent with the hand of spiral of stator winding, lead angle is equal；Each group mover iron core both ends are additionally provided with short-circuited conducting sleeve, short-circuited conducting sleeve with it is each
The distance between electric conductor connection, each short-circuited conducting sleeve in mover teeth groove is equal to the axial effective length of stator winding, stator winding
Power supply uses multiphase alternating power supply.
6. a kind of screw motor according to claim 1 or 2, it is characterised in that the screw motor is one
Kind reluctance type screw motor, the stator magnetic circuit, magnetic pole are made up of iron core and winding, and the magnetic pole of the stator is salient pole knot
Structure, the mover magnetic pole are salient-pole structure, and mover, magnetic pole of the stator are conducting magnet cores, and stator magnet number of poles is with mover number of magnetic poles
Even number, the stator winding power supply of screw motor can directly use the multiphase alternating power supply of two-phase and the above or pass through controller and work(
Dc source is converted into multiphase switch power source by rate converter.
7. a kind of screw motor according to claim 6, it is characterised in that the screw motor is a kind of magnetic
Resistive stepping screw motor, the stator magnetic circuit, magnetic pole are made up of iron core and winding, and magnetic pole of the stator is salient-pole structure,
The magnetic pole of the stator end face teeth groove of more than one quantity is provided with stator salient poles magnetic pole end face along the centerline direction of magnetic pole, it is described
Mover magnetic pole is salient-pole structure, and mover, magnetic pole of the stator are magnetic conductors, and mover magnetic pole is opened on end face along the centerline direction of magnetic pole
There is a mover magnetic pole end face teeth groove of more than one quantity, the end face space width on magnetic pole of the stator is with space width with mover magnetic pole
End face space width is identical with space width, and stator winding power supply provides multiphase switch power source by controller by power inverter.
8. a kind of screw motor according to claim 6, is a kind of reluctance type screw motor, its feature exists
In being provided with permanent magnet each stator or mover magnetic pole.
9. a kind of screw motor according to claim 7, is a kind of reluctance type screw motor, its feature exists
In being provided with permanent magnet each stator or mover magnetic pole.
10. a kind of screw motor according to claim 1 or 2, it is characterised in that the screw motor is one
Kind magneto screw motor, the mover magnetic pole is made up of iron core and permanent magnet, and mover magnetic pole radially magnetizes, described
Magnetic pole of the stator is made up of stator core, stator winding, and motor power uses alternating source or direct-current switch power supply.
11. a kind of screw motor according to claim 1 or 2, it is characterised in that the screw motor is one
Kind magneto screw motor, the magnetic pole of the stator is made up of iron core and permanent magnet, and magnetic pole of the stator radially magnetizes, described
Mover is made up of mover iron core, mover winding and commutator, and the length of the mover iron core, mover winding and commutator is according to being
Depending on interior mover or outer mover pattern and the axial stroke of needs, electric mover winding uses dc source.
12. a kind of screw motor according to claim 1 or 2, it is characterised in that the screw motor is one
Kind DC excitation formula screw motor, the magnetic pole of the stator and magnetic circuit are made up of iron core and winding, stator winding connection multiphase
Alternating source, the mover assembly are made up of mover iron core, mover Exciting Windings for Transverse Differential Protection and collector ring, mover Exciting Windings for Transverse Differential Protection connection direct current
Power supply, the length of the mover assembly of the DC excitation formula screw motor, stator and collector ring is according to being interior mover or outer dynamic
Depending on the axial stroke of subpattern and needs.
13. a kind of screw motor according to claim 1 or 2, it is characterised in that the screw motor is one
Kind induction type screw motor, the stator is made up of iron core and winding, stator winding access alternating source, the mover
Magnetic pole is coiling mover magnetic pole, and mover winding thread end draws Access Control loop, the induction type by collector ring and brush
The length of the mover of screw motor, stator and collector ring according to being interior mover or outer mover pattern and the axial stroke of needs and
It is fixed.
14. a kind of screw motor according to claim 1 or 2, it is characterised in that the screw motor is one
Kind brushless DC permanent magnetism screw motor, the stator is made up of iron core and winding, and the mover is permanent magnet, dynamic
Connect between son and stator winding equipped with rotor position detection with stator winding switch controller, stator winding by switch controller
Enter dc source.
15. a kind of screw motor according to claim 1 or 2, it is characterised in that every group of stator, mover
Screw arrangement is that wall scroll hurricane band is arranged vertically for magnetic pole, teeth groove or winding, formation helical magnetic field, the hurricane band conductor in teeth groove
Conduction is connected between short-circuit conductor.
16. a kind of screw motor according to claim 1 or 2, it is characterised in that every group of stator, mover
Screw arrangement is a plurality of screw arrangement vertically for magnetic pole, teeth groove or winding, forms helical magnetic field, and what each hurricane band was arranged leads
Conductive, mutually insulated between the short-circuit conductor of each bar hurricane band arrangement is connected between body and short-circuit conductor.
A kind of 17. screw motor according to claim 1 or 2, it is characterised in that stator module or the mover group
Part is by the magnetic pole and winding hand of spiral phase of two groups of stators or the placement of mover series-connected helical, two groups of stator modules or mover assembly
Anti- or identical, lift angle is equal in magnitude.
A kind of 18. screw motor according to claim 1 or 2, it is characterised in that stator module or the mover group
Part is by the magnetic pole and winding spiral shell of two groups of stator modules or mover assembly parallel spiral arrangement, two groups of stator modules or mover assembly
Revolve in opposite direction or identical, lift angle is equal in magnitude.
19. a kind of screw motor according to claim 1 or 2, it is characterised in that the screw motor is a kind of spiral shell
Propulsion electric machine is revolved, is connected to after being serially connected with magnetic switch on each winding on the stator module on power supply, magnetic switch cloth
Put on stator and the close stator surface of mover, the mover is magnetic conductor, and mover periphery is inlaid with permanent magnet, each permanent magnetism
Body connects a winding of above or below close to magnetic switch.
20. a kind of screw motor according to claim 1 or 2, it is characterised in that the screw motor is a kind of spiral shell
Propulsion electric machine is revolved, is provided with non-magnetic casing on stator and the close stator surface of mover, edge on the inwall of non-magnetic casing
Two conducting rings axially are provided with each winding width, are insulated between two conducting rings, each two conducting ring is serially connected in stator
It is connected to after on winding loop on power supply, brush is provided with the mover, each brush connects the anterior or winding of rear portion one
Two conducting rings, mover is magnetic conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251272.2A CN107370330A (en) | 2017-04-18 | 2017-04-18 | A kind of screw motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251272.2A CN107370330A (en) | 2017-04-18 | 2017-04-18 | A kind of screw motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107370330A true CN107370330A (en) | 2017-11-21 |
Family
ID=60304325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710251272.2A Withdrawn CN107370330A (en) | 2017-04-18 | 2017-04-18 | A kind of screw motor |
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| Country | Link |
|---|---|
| CN (1) | CN107370330A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088518A (en) * | 2018-09-25 | 2018-12-25 | 苏州直为精驱控制技术有限公司 | integrated linear motor |
| CN111181340A (en) * | 2020-02-19 | 2020-05-19 | 山东大学 | Combined modular dual-rotor permanent magnet rotating linear motor and driving equipment |
| CN111375812A (en) * | 2020-03-27 | 2020-07-07 | 东方电气集团东方锅炉股份有限公司 | Method for machining spiral inter-belt groove on excircle of cylindrical workpiece |
| CN113765327A (en) * | 2020-07-06 | 2021-12-07 | 北京沃东天骏信息技术有限公司 | Electromagnetic power device |
-
2017
- 2017-04-18 CN CN201710251272.2A patent/CN107370330A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088518A (en) * | 2018-09-25 | 2018-12-25 | 苏州直为精驱控制技术有限公司 | integrated linear motor |
| CN111181340A (en) * | 2020-02-19 | 2020-05-19 | 山东大学 | Combined modular dual-rotor permanent magnet rotating linear motor and driving equipment |
| CN111181340B (en) * | 2020-02-19 | 2023-04-07 | 山东大学 | Combined modular dual-rotor permanent magnet rotating linear motor and driving equipment |
| CN111375812A (en) * | 2020-03-27 | 2020-07-07 | 东方电气集团东方锅炉股份有限公司 | Method for machining spiral inter-belt groove on excircle of cylindrical workpiece |
| CN113765327A (en) * | 2020-07-06 | 2021-12-07 | 北京沃东天骏信息技术有限公司 | Electromagnetic power device |
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Application publication date: 20171121 |