CN107749705A - A kind of screw motor - Google Patents
A kind of screw motor Download PDFInfo
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- CN107749705A CN107749705A CN201711258293.3A CN201711258293A CN107749705A CN 107749705 A CN107749705 A CN 107749705A CN 201711258293 A CN201711258293 A CN 201711258293A CN 107749705 A CN107749705 A CN 107749705A
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- mover
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- screw motor
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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
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
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Abstract
The invention provides a kind of screw motor, including stator module, mover assembly, stator and mover magnetic pole, teeth groove or winding are all pressed on the close surface of stator and mover respectively reverses the essentially identical angle of a lead angle counterclockwise clockwise or all, the angle of bevel or lead angle size of magnetic pole of the stator and mover magnetic pole difference are no more than positive and negative 5 °, form skewed stator slot and mover skewed slot and the screw arrangement of electric conductor and magnetic pole, lead angle is positive and negative 5 ° -85 ° formation helical magnetic fields, 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 stator magnetic circuit, paired magnetic pole
Magnetic field, stator cage etc. are formed, and the mover assembly includes mover axle, mover magnetic circuit and paired magnetic pole and magnetic field, mover support shaft
Hold etc. and to form, the magnetic pole and magnetic field by permanent magnet and iron core or winding and iron core form caused by magnetic pole and magnetic field or electric by alternation
Flow magnetic field magnetic pole and magnetic field caused by induced-current in electric conductor, it is characterised in that stator is with mover magnetic pole, teeth groove or around component
All pressed not on the close surface of stator and mover and reverse a lead angle identical angle counterclockwise clockwise or all
Degree, skewed stator slot and mover skewed slot and the screw arrangement of electric conductor and magnetic pole are formed, lead angle is positive and negative 5 ° -85 °, is powered
After form helical magnetic field, angle of bevel or lead angle the size difference of magnetic pole of the stator and mover magnetic pole are no more than 5 °；Stator with
Air gap, stator or mover length between mover be present according to being interior mover or outer mover pattern, long mover or short mover mould
Depending on formula and the axial stroke of needs, under the conditions of the axial displacement of constraint mover, mover can be according to the sense of current, in circumference side
The continuous forward and reverse rotation of 360 ° of scopes is done upwards, and in the case where constraining direction of rotation displacement condition, mover can be done according to the sense of current
Linear reciprocating motion, under conditions of axial displacement constraint and direction of rotation displacement constraint is released, mover can be according to the sense of current
Or the magnetic pole hand of spiral does forward-reverse spiral motion, motor power 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 a suitable size is reversed to same direction and is formed, and the magnetic pole of every group of stator and mover, teeth groove, winding are in motor
Mandrel line helix degree can be less than one week, can also be more than one week, the various winding constructions of various screw motors and it is existing respectively
The winding construction of kind electric rotating machine and linear electric motors is essentially identical.Above-mentioned screw motor also includes the tactic pattern such as synchronous, asynchronous.
For above-mentioned various screw motors, the constraints by setting or releasing stator or mover can realize external stator, interior mover mould
Formula and inner stator, outer mover pattern, also it can realize that short mover is grown by designing magnetic pole, winding length or the multigroup magnetic pole winding of series connection
Stator or the long Structure of mover of short stator, stroke size needed for adjustment, when electromagnetism winding is placed on mover, it is necessary to configure transmission of electricity
Slip ring, slideway or transverter.For the configurable reciprocal or screw bearing of mover spring bearing.For forming helical magnetic field
Power supply can use dc source, alternating source or the pulse power according to different electric machine structures and purposes, can be two-phase and with
On polyphase source, the power-supply system and control system of existing various electric rotating machines and linear electric motors can use as needed.
The mode of axial force produced by such motor, there is the electric rotating machine of large axial force available for balanced load, such as vavuum pump electricity consumption
Machine etc..
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 magnetic pole is to be sleeved on mover axle
On conductive material stator field sensing under vortex caused by spiral magnetic pole.The conductive material is that have preferable electric conductivity
The metal material or alloy material or composite of energy.The mover magnetic pole can also be that the magnetic conduction being sleeved on mover axle is conductive
Spiral magnetic pole caused by vortex of the material under stator field sensing.The magnetic conduction conductive material be not only have good magnetic conductivity but also
Metal material or alloy material or composite with 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 structural representation of magneto screw motor of the present invention.
Fig. 3（a）For an a kind of cross section structure schematic diagram of switched reluctance screw motor of the present invention, Fig. 3（b）For
The power inverter of the screw motor and the connection diagram of three-phase windings.
Fig. 4 is a cross section structure and principle schematic for a kind of reluctance type stepping screw motor of the present invention.
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 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, 2 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. 3（a）For an a kind of cross section structure schematic diagram of switched reluctance screw motor of the present invention, Fig. 3（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. 3
（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. 4 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（Such as Fig. 3（b））Send control
Signal processed, driver are powered according to the hand of spiral and motion state to three-phase windings again, that is, are inputted a pulse signal change and cut
A power supply state is changed, often to a step of control wave mover helical rotation one.
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 includes stator magnetic circuit, paired magnetic
Pole field, stator cage etc. are formed, and the mover assembly includes mover axle, mover magnetic circuit and paired magnetic pole and magnetic field, mover supports
Bearing etc. is formed, and the magnetic pole and magnetic field is formed after being powered by permanent magnet and iron core or winding with iron core or caused magnetic pole and magnetic field
Or the magnetic pole and magnetic field as caused by the induced-current in electric conductor of alternating current magnetic field, it is characterised in that stator and mover magnetic pole, tooth
Groove or winding are all pressed on the close surface of stator and mover respectively reverses a spiral liter counterclockwise clockwise or all
Angle of bevel or lead angle the size difference of the essentially identical angle in angle, magnetic pole of the stator and mover magnetic pole are no more than positive and negative 5 °,
Skewed stator slot and mover skewed slot and the screw arrangement of electric conductor and magnetic pole are formed, lead angle is positive and negative 5 ° -85 °, shape after energization
Into helical magnetic field, air gap, stator or mover length between stator and mover be present according to being interior mover or outer mover pattern, length
Depending on mover or short mover pattern and the axial stroke of needs, under the conditions of the axial displacement of constraint mover, mover can foundation
The sense of current, the continuous forward and reverse rotation of 360 ° of scopes is done in a circumferential direction, in the case where constraining direction of rotation displacement condition, mover
Linear reciprocating motion can be done according to the sense of current, under conditions of axial displacement constraint and direction of rotation displacement constraint is released, moved
Son can do forward-reverse spiral motion according to the sense of current or the magnetic pole hand of spiral, motor power using dc source or two-phase and more than
Multiphase alternating power supply.
2. a kind of screw motor according to claim 1, it is characterised in 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 magnetic pole is to be sleeved on mover axle
On vortex of the magnetic conduction conductive material under stator field sensing caused by spiral magnetic pole, stator winding power supply uses multiphase alternating
Power supply.
3. a kind of screw motor according to claim 1, it is characterised in 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 the axial effective length of stator winding, stator winding power supply uses multiphase alternating power supply.
4. a kind of screw motor according to claim 1, it is characterised in 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 axle is by the mover of more than one
Short axle hinge concatenation is formed, and one group is equipped with outside every mover short axle with last iron core, is provided with teeth groove on each iron core, is set in teeth groove
There is 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 and determined
The hand of spiral of sub- winding is consistent, and lead angle is equal；Each group mover iron core both ends are additionally provided with short-circuited conducting sleeve, short-circuited conducting sleeve and each mover
The distance between electric conductor connection, each short-circuited conducting sleeve in teeth groove is equal to the axial effective length of stator winding, stator winding power supply
Using multiphase alternating power supply.
5. a kind of screw motor according to claim 1, it is characterised in 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,
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 power change
Dc source is converted into multiphase switch power source by parallel operation.
6. a kind of screw motor according to claim 1, 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.
7. a kind of screw motor according to claim 5, is a kind of reluctance type screw motor, its feature exists
In being provided with permanent magnet each stator or mover magnetic pole.
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.
A kind of 9. screw motor according to claim 1, it is characterised in that 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, and motor power uses alternating source or direct-current switch power supply.
10. a kind of screw motor according to claim 1, it is characterised in that the screw motor is a kind of
Magneto 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, described dynamic
Son 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 interior
Depending on mover or outer mover pattern and the axial stroke of needs, electric mover winding uses dc source.
11. a kind of screw motor according to claim 1, it is characterised in that the screw motor is a kind of
DC excitation formula screw motor, the magnetic pole of the stator and magnetic circuit are made up of iron core and winding, and stator winding connection is more intersecting
Variable power 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
Source, 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 mover
Depending on pattern and the axial stroke of needs.
12. a kind of screw motor according to claim 1, it is characterised in that the screw motor is a kind of
Induction type screw motor, the stator are 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 spiral shell by collector ring and brush
Revolve the length of the mover of motor, stator and collector ring according to being interior mover or outer mover pattern and the axial stroke of needs and
It is fixed.
13. a kind of screw motor according to claim 1, it is characterised in that the screw motor is a kind of
Brushless DC permanent magnetism screw motor, the stator is made up of iron core and winding, and the mover is permanent magnet, in mover
Accessed between stator winding equipped with rotor position detection with stator winding switch controller, stator winding by switch controller
Dc source.
14. a kind of screw motor according to claim 1, it is characterised in that every group of stator, the magnetic of mover
Screw arrangement is wall scroll hurricane band arrangement vertically for pole, teeth groove or winding, forms helical magnetic field, the hurricane band conductor in teeth groove with
Connected between short-circuit conductor conductive.
15. a kind of screw motor according to claim 1, it is characterised in that every group of stator, the magnetic of mover
Screw arrangement is a plurality of screw arrangement vertically for pole, teeth groove or winding, forms helical magnetic field, the conductor of each hurricane band arrangement
It is connected conduction between short-circuit conductor, mutually insulated between the short-circuit conductor of each bar hurricane band arrangement.
16. a kind of screw motor according to claim 1, it is characterised in that the stator module or mover assembly
It is opposite by two groups of stators or the placement of mover series-connected helical, the magnetic pole and the winding hand of spiral of two groups of stator modules or mover assembly
Or it is identical, lift angle is equal in magnitude.
17. a kind of screw motor according to claim 1, it is characterised in that the stator module or mover assembly
It is by the magnetic pole and winding spiral of two groups of stator modules or mover assembly parallel spiral arrangement, two groups of stator modules or mover assembly
In opposite direction or identical, lift angle is equal in magnitude.
18. a kind of screw motor according to claim 1, it is characterised in that the screw motor is a kind of spiral
Propulsion electric machine, it is connected to after being serially connected with magnetic switch on each winding on the stator module on power supply, magnetic switch arrangement
On stator and the close stator surface of mover, the mover is magnetic conductor, and mover periphery is inlaid with permanent magnet, each permanent magnet
A winding of above or below is connected close to magnetic switch.
19. a kind of screw motor according to claim 1, it is characterised in that the screw motor is a kind of spiral
Propulsion electric machine, is provided with non-magnetic casing on stator and the close stator surface of mover, along axle on the inwall of non-magnetic casing
Two conducting rings are provided with into each winding width, are insulated between two conducting rings, each two conducting ring be serially connected in stator around
It is connected to after on group loop on power supply, brush is provided with the mover, each brush is connected anterior or the winding of rear portion one
Two conducting rings, mover are magnetic conductors.
20. a kind of screw motor according to claim 1, it is characterised in that negative with being promoted in the mover axle
Thrust bearing is installed between load or screw rod is fixed with one end of mover axle, nut is housed on screw rod, or in mover and stator
Between electromagnetic brake is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711258293.3A CN107749705A (en) | 2017-12-04 | 2017-12-04 | A kind of screw motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711258293.3A CN107749705A (en) | 2017-12-04 | 2017-12-04 | A kind of screw motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107749705A true CN107749705A (en) | 2018-03-02 |
Family
ID=61250306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711258293.3A Withdrawn CN107749705A (en) | 2017-12-04 | 2017-12-04 | A kind of screw motor |
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| Country | Link |
|---|---|
| CN (1) | CN107749705A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117318432A (en) * | 2023-11-29 | 2023-12-29 | 湖南天友精密技术有限公司 | Dynamic magnetic type permanent magnet motor and control method |
-
2017
- 2017-12-04 CN CN201711258293.3A patent/CN107749705A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117318432A (en) * | 2023-11-29 | 2023-12-29 | 湖南天友精密技术有限公司 | Dynamic magnetic type permanent magnet motor and control method |
| CN117318432B (en) * | 2023-11-29 | 2024-02-20 | 湖南天友精密技术有限公司 | Dynamic magnetic type permanent magnet motor and control method |
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Application publication date: 20180302 |