CN104167898B - A kind of screw propulsion travelling-magnetic-field motor - Google Patents
A kind of screw propulsion travelling-magnetic-field motor Download PDFInfo
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- CN104167898B CN104167898B CN201410438997.9A CN201410438997A CN104167898B CN 104167898 B CN104167898 B CN 104167898B CN 201410438997 A CN201410438997 A CN 201410438997A CN 104167898 B CN104167898 B CN 104167898B
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Abstract
The invention discloses a kind of screw propulsion travelling-magnetic-field motor, including cylinder type iron core, winding and field element, side at iron core, along the circumferential direction it is distributed with and is parallel to axial bar-shaped trough, bar shaped tooth is formed between adjacent two bar-shaped troughs, being wound with winding on each bar shaped tooth, winding is embedded in bar-shaped trough, and field element is attached to the surface of bar shaped tooth；On same bar shaped tooth, field element is arranged in a row vertically, and the magnetic pole of two field elements of arbitrary neighborhood is respectively N pole and S pole, constitutes the counter magnetic flux group of winding on same bar shaped tooth, the centre distance of adjacent N pole and S pole be axial poles away from；On two bar shaped teeth of arbitrary neighborhood, there is axial dipole field in arranging of field element.The present invention can control rotary speed and the fltting speed of helical magnetic field by controlling supply frequency, significantly simplifies structure and the control of helical magnetic field device；Iron loss can be effectively reduced by the most axially lamination.
Description
Technical field
The present invention relates to a kind of motor based on counter magnetic flux principle, particularly relate to a kind of screw propulsion travelling-magnetic-field motor.
Background technology
In some industrial occasions are such as Metallurgy Industry, need the effect of helical magnetic field；In other occasion, helical magnetic field
Can be as the power of linear advancement.Iron and Steel Research Geueral Inst advanced person's iron and steel flow process and the Wang Songwei of material National Key Laboratory
Drive molten metal axially to flow Deng the helical magnetic field studied, use three phase alternating current motor to drive the aluminum putting up helical permanent magnet
The method that alloy bracket rotates, device volume is relatively big and magnetic field running speed adjusts bigger by device inertia effects.The U.S.
Patent 5,654,546 disclose a kind of linear electric motors based on counter magnetic flux principle, install contrary on stator winding tooth
Permanent magnet, reaches to be similar to the control mode of permanent magnetic brushless, but is limited by the shadow of traditional line motor side-termind effect
Ringing, the symmetry of three-phase windings is bad, affects motor control performance.
Summary of the invention
Goal of the invention: in order to overcome helical magnetic field in prior art to control problem inconvenient, that device is the compactest, this
Bright offer one has screw propulsion travelling-magnetic-field motor, uses the winding type of symmetrical rotary motor and encouraging of counter magnetic flux
Magnetic technology, by rational electrical cooperation, produces the travelling-magnetic-field of spiral-shaped propelling at armature surface, can be not only used for needing
Want the occasion of helical magnetic field it can also be used to design each symmetrical linear advancement motor, reach compact conformation, control simultaneously
Convenient, efficiency beneficial effect higher, lower-cost.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
A kind of screw propulsion travelling-magnetic-field motor, including cylinder type iron core, winding and field element, in the side of iron core,
Along the circumferential direction it is distributed with and is parallel to axial bar-shaped trough, form bar shaped tooth between adjacent two bar-shaped troughs, at each
Being wound with winding on shape tooth, winding is embedded in bar-shaped trough, and field element is attached to the surface of bar shaped tooth；At same bar shaped tooth
On, field element is arranged in a row vertically, and the magnetic pole of two field elements of arbitrary neighborhood is respectively N pole and S pole, constitutes
The counter magnetic flux group of winding on same bar shaped tooth, the centre distance of adjacent N pole and S pole be axial poles away from；Arbitrary neighborhood
Article two, on bar shaped tooth, there is axial dipole field in arranging of field element；Along the circumferential direction, on two bar shaped teeth of arbitrary neighborhood
The axial offset of field element is consistent with offset direction, offsets away from the requirement of the winding number of phases according to axial poles, formed around
The phase contrast of group.
Preferably, described iron core is overrided to form vertically by ring-shaped silicon steel sheet, to reduce eddy-current loss.
Preferably, described bar-shaped trough is distributed in inner circle side or the cylindrical side of iron core.
Preferably, described field element uses permanent magnet or winding excitation.
Preferably, described all windings are divided into three-phase, naturally it is also possible to be divided into any phase as required.
Preferably, described field element side-play amount on adjacent two bar shaped teeth be axial poles away from 2/3rds so that
The electromotive force phase contrast of adjacent winding 120 °；Can certainly arrange other side-play amounts according to the winding number of phases, side-play amount can
Being that pole span is divided by the number of phases, it is also possible to be that pole span is divided by the twice number of phases.
Preferably, also including mover, mover is arranged on the side with bar shaped tooth, it may be assumed that when bar shaped tooth is arranged on iron core
During inner side, mover is arranged on the inner side of iron core；When bar shaped tooth is arranged on the outside of iron core, mover is arranged on outside iron core
Side.Described mover can be the iron core that axial teeth groove is separated by, to constitute magnetic resistance type linear electric motors；Can also be metal liquid,
Aluminum cylinder or copper circle copper, to constitute induction type screw motor.
Beneficial effect: the screw propulsion travelling-magnetic-field motor that the present invention provides, can control spiral by controlling supply frequency
The rotary speed in magnetic field and fltting speed, simplify structure and the control of helical magnetic field device significantly；Use transverse magnetic flux structure,
Cylinder motor also can effectively reduce iron loss by the most axially lamination；Use anti-phase magnetic flux technology, field element and electricity
Pivot element is arranged on the same side not only can effectively reduce field element quantity, additionally aids protection field element；Each winding
Magnetic resistance is evenly distributed, the most each phase winding electrical quantity balance and final control.
Accompanying drawing explanation
Fig. 1 is first example structure schematic diagram of the present invention；
Fig. 2 is second example structure schematic diagram of the present invention；
Fig. 3 is the 3rd the example structure schematic diagram of the present invention；
Fig. 4 is the 4th the example structure schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described.
Embodiment 1
It is illustrated in figure 1 a kind of screw propulsion travelling-magnetic-field motor, including cylinder type iron core 1, winding 2 and field element
3, in the side of iron core 1, along the circumferential direction it is distributed with and is parallel to axial bar-shaped trough 5, adjacent two bar-shaped troughs 5
Between formed bar shaped tooth 4, each bar shaped tooth 4 is wound with winding 2, winding 2 is embedded in bar-shaped trough 5, excitation unit
Part 3 is attached to the surface of bar shaped tooth 4；On same bar shaped tooth 4, field element 3 is arranged in a row vertically, any phase
The magnetic pole of adjacent two field elements 3 is respectively N pole and S pole, constitutes the counter magnetic flux of winding 2 on same bar shaped tooth 4
Group, the centre distance of adjacent N pole and S pole be axial poles away from；On two bar shaped teeth 4 of arbitrary neighborhood, field element 3
Arrange and there is axial dipole field；Along the circumferential direction, the axial dipole field of the field element 3 on two bar shaped teeth 4 of arbitrary neighborhood
Measure consistent with offset direction, offset away from the requirement with winding 2 number of phases according to axial poles, form the phase contrast of winding.
As it is shown in figure 1, the bar shaped tooth 4 in this example is arranged on the inner circle side of iron core 1, have 18 bar shaped teeth 4；Adopt
Use centralized winding, each bar shaped tooth is all wound with winding 2；Field element 3 uses permanent magnet, is attached to bar shaped tooth 4
The flank of tooth on；The field element 3 side-play amount on adjacent two bar shaped teeth 4 be axial poles away from 2/3rds so that phase
The electromotive force phase contrast 120 ° of adjacent winding 2, constitutes three-phase windings；When winding 2 is passed through symmetrical three-phase alternating current,
The travelling-magnetic-field of screw propulsion will be formed inside iron core 1 and field element 3.
Embodiment 2
As in figure 2 it is shown, on the basis of embodiment 1, embodiment 2 add a cylinder type collet 6 and one lead
Flow cartridge 7, collet 6 is nonferromagnetic material；Collet 6 is arranged on inside field element 3, and outside collet 6
Surface fits with the surface of field element 3；Guide shell 7 is arranged on the inner side of collet 6, and collet 6 and leading
Circular passage 8 is formed between flow cartridge 7；Metal liquid is imported in circular passage 8, and in winding 2, be passed through symmetrical three
Cross streams electricity, the metal liquid in circular passage 8 under screw propulsion travelling-magnetic-field effect, induced current, and spiral shell therewith
Rotate dynamic, reach the purpose of electromagnetic agitation, by changing the frequency of three-phase alternating current, electric current, phase sequence, can control respectively
The speed of electromagnetic agitation processed and direction.
Embodiment 3
As it is shown on figure 3, on the basis of embodiment 1, embodiment 3 adds a copper cylinder 9, copper cylinder 9
It is arranged on inside field element 3, and between field element 3 and copper cylinder 9, leaves suitable air gap, when in winding 2
Being passed through symmetrical three-phase alternating current, copper cylinder 9 is under the effect of screw propulsion travelling-magnetic-field, by spiral thrust effect；
By changing the frequency of three-phase alternating current, electric current, phase sequence, size and the side of active force suffered by copper cylinder 9 can be controlled
To.
Embodiment 4
As shown in Figure 4, on the basis of embodiment 1, embodiment 4 adds a mover iron core 10, at mover iron core
The outer surface of 10 is provided with the cannelure of circumferencial direction, and all cannelures uniform intervals vertically is arranged；Vertically,
The center distance of adjacent two cannelures is equal to two pole spans；Mover iron core 10 is arranged on inside field element 3, and
Suitable air gap is left between field element 3 and mover iron core 10；When winding 2 is passed through symmetrical three-phase alternating current, mover
The magnetic resistance of iron core 10, only at Axial changes, therefore only by axial thrust in screw propulsion travelling-magnetic-field, changes energising
Frequency, can control fltting speed, changes phase sequence and then can change thrust direction, reaches to simplify the purpose controlled.Equally
Mover iron core 10 can be designed be overrided to form vertically by ring-shaped silicon steel sheet, to reduce eddy-current loss.
The above is only the preferred embodiment of the present invention, it should be pointed out that: for those skilled in the art
For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications are also
Should be regarded as protection scope of the present invention.
Claims (6)
1. a screw propulsion travelling-magnetic-field motor, it is characterised in that: include cylinder type iron core (1), winding (2) and
Field element (3), in the side of iron core (1), is distributed uniformly and circumferentially and is parallel to axial bar-shaped trough (5),
Form bar shaped tooth (4) between adjacent two bar-shaped troughs (5), each bar shaped tooth (4) is wound with winding (2), around
Group (2) is embedded in bar-shaped trough (5), and field element (3) is attached to the surface of bar shaped tooth (4)；At same bar shaped tooth
(4) on, field element (3) is arranged in a row vertically, and the magnetic pole of two field elements (3) of arbitrary neighborhood is respectively
N pole and S pole, constitute the counter magnetic flux group of the upper winding (2) of same bar shaped tooth (4), adjacent N pole and S pole
Centre distance be axial poles away from；On two bar shaped teeth (4) of arbitrary neighborhood, arranging of field element (3) exists the most partially
Move；Along the circumferential direction, the axial offset of the field element (3) on two bar shaped teeth (4) of arbitrary neighborhood and skew side
To unanimously, offset away from the requirement with winding (2) number of phases according to axial poles, form the phase contrast of winding, particularly as follows: institute
State the field element (3) side-play amount on adjacent two bar shaped teeth (4) be axial poles away from 2/3rds so that adjacent
The electromotive force phase contrast of winding (2) 120 °；Or according to axial poles away from divided by the number of phases or according to axial poles away from divided by twice
The length of the number of phases offsets.
Screw propulsion travelling-magnetic-field motor the most according to claim 1, it is characterised in that: described iron core (1) by
Ring-shaped silicon steel sheet is overrided to form vertically.
Screw propulsion travelling-magnetic-field motor the most according to claim 1, it is characterised in that: described bar-shaped trough (5)
It is distributed in inner circle side or the cylindrical side of iron core (1).
Screw propulsion travelling-magnetic-field motor the most according to claim 1, it is characterised in that: described field element (3)
Use permanent magnet or winding excitation.
Screw propulsion travelling-magnetic-field motor the most according to claim 1, it is characterised in that: all described windings (2)
It is divided into three-phase.
Screw propulsion travelling-magnetic-field motor the most according to claim 1, it is characterised in that: also include mover, dynamic
Son is arranged on the side with bar shaped tooth (4), it may be assumed that when bar shaped tooth (4) is arranged on the inner side of iron core (1), dynamic
Son is arranged on the inner side of iron core (1)；When bar shaped tooth (4) is arranged on the outside of iron core (1), mover is arranged on ferrum
The outside of core (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410438997.9A CN104167898B (en) | 2014-08-29 | 2014-08-29 | A kind of screw propulsion travelling-magnetic-field motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410438997.9A CN104167898B (en) | 2014-08-29 | 2014-08-29 | A kind of screw propulsion travelling-magnetic-field motor |
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| Publication Number | Publication Date |
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| CN104167898A CN104167898A (en) | 2014-11-26 |
| CN104167898B true CN104167898B (en) | 2016-08-17 |
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| CN201410438997.9A Expired - Fee Related CN104167898B (en) | 2014-08-29 | 2014-08-29 | A kind of screw propulsion travelling-magnetic-field motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3823143A1 (en) * | 2019-11-13 | 2021-05-19 | Fertigungsgerätebau A. Steinbach GmbH & Co. KG | Drive unit for generating a translatory movement |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852549A (en) * | 2015-05-28 | 2015-08-19 | 东南大学 | Linear rotation permanent magnet actuator adopting staggered pole structure |
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|---|---|---|---|---|
| GB1396692A (en) * | 1971-02-11 | 1975-06-04 | Univ North Wales | Synchronous linear electric motor |
| CN1069370A (en) * | 1992-06-15 | 1993-02-24 | 宁波大学 | Electromagnetic screw type linear stepping motor |
| CN1111415A (en) * | 1994-09-29 | 1995-11-08 | 东方电机株式会社 | Linear motor |
| CN1711669A (en) * | 2002-11-05 | 2005-12-21 | 横滨Tlo株式会社 | Spiral linear motor |
| CN101552512A (en) * | 2008-12-19 | 2009-10-07 | 杨士平 | Screw motor |
| CN101789646A (en) * | 2010-01-13 | 2010-07-28 | 河南理工大学 | Multivariant linear arc-shaped motor |
| CN201846217U (en) * | 2010-11-11 | 2011-05-25 | 东南大学 | Linear rotating permanent magnetic actuator |
| CN102290960A (en) * | 2011-08-25 | 2011-12-21 | 哈尔滨工业大学 | Cylindrical linear reluctance motor with permanent magnet offset structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08237933A (en) * | 1995-02-28 | 1996-09-13 | Oriental Motor Co Ltd | Linear motor |
| JP3434430B2 (en) * | 1997-03-12 | 2003-08-11 | シーケーディ株式会社 | Motor and output device provided with the motor |
| KR100346274B1 (en) * | 1999-12-10 | 2002-07-26 | 엘지전자주식회사 | Rotary/linear induction motor |
-
2014
- 2014-08-29 CN CN201410438997.9A patent/CN104167898B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1396692A (en) * | 1971-02-11 | 1975-06-04 | Univ North Wales | Synchronous linear electric motor |
| CN1069370A (en) * | 1992-06-15 | 1993-02-24 | 宁波大学 | Electromagnetic screw type linear stepping motor |
| CN1111415A (en) * | 1994-09-29 | 1995-11-08 | 东方电机株式会社 | Linear motor |
| CN1711669A (en) * | 2002-11-05 | 2005-12-21 | 横滨Tlo株式会社 | Spiral linear motor |
| CN101552512A (en) * | 2008-12-19 | 2009-10-07 | 杨士平 | Screw motor |
| CN101789646A (en) * | 2010-01-13 | 2010-07-28 | 河南理工大学 | Multivariant linear arc-shaped motor |
| CN201846217U (en) * | 2010-11-11 | 2011-05-25 | 东南大学 | Linear rotating permanent magnetic actuator |
| CN102290960A (en) * | 2011-08-25 | 2011-12-21 | 哈尔滨工业大学 | Cylindrical linear reluctance motor with permanent magnet offset structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3823143A1 (en) * | 2019-11-13 | 2021-05-19 | Fertigungsgerätebau A. Steinbach GmbH & Co. KG | Drive unit for generating a translatory movement |
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| CN104167898A (en) | 2014-11-26 |
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