CN102868271A - Double-stator rotating linear motor - Google Patents
Double-stator rotating linear motor Download PDFInfo
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- CN102868271A CN102868271A CN2012103691981A CN201210369198A CN102868271A CN 102868271 A CN102868271 A CN 102868271A CN 2012103691981 A CN2012103691981 A CN 2012103691981A CN 201210369198 A CN201210369198 A CN 201210369198A CN 102868271 A CN102868271 A CN 102868271A
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Abstract
The invention provides a double-stator rotating linear motor which belongs to the technical field of motors and solves the problems of large volume and high weight of a system due to the fact that the existing rotating linear motor realizes a multiple-degree-of-freedom movement through the combination of multiple motors and mechanical switching mechanisms. The motor is characterized in that a case of the motor is connected with a rotating shaft by bearings; an outer stator core is fixed on the inner surface of the case; an inner stator core is fixedly connected with the case by an inner stator sleeve; the inner stator sleeve is connected with the rotating shaft by bearings; a rotor core is coaxially arranged between the inner stator core and the outer stator core; one end of the rotor core is fixedly connected with the rotating shaft via a rotor front end supporting part; the other end of the rotor core is connected with the excircle surface of the inner stator sleeve by bearings via a rotor rear end supporting part; the inner stator core and the rotor core form a rotating motor structure or a cylinder type linear motor structure; and the outer stator core and the rotor core form a cylinder type linear motor structure or a rotating motor structure. The invention relates to a rotating linear motor.
Description
Technical field
The present invention relates to a kind of pair of stator rotation linear electric motors, belong to technical field of motors.
Background technology
The rotation linear electric motors have wide application in fields such as Aero-Space, Industry Control, lathe, robot, boring, office automation, flexible manufacturing and assembly system, screw thread processing and navigation systems.Existing rotation-linear electric motors are mainly realized multivariant function by multiple electric motors and machinery conversion mechanism, and this implementation causes that the volume of system is large, weight is high.For the screw that is realized by the separate unit motor, this type of motor is to adopt at a stator to twine two cover stator winding mostly, is respectively applied to realize rectilinear motion and the control that rotatablely moves.This type motor is placed double winding owing to walking abreast on the stator, has increased the axial space of motor, and the volume of motor is also corresponding larger.
Summary of the invention
The present invention realizes multivariant motion in order to solve the combination of existing rotation-linear electric motors by multiple electric motors and machinery conversion mechanism, causes system bulk to reach greatly the high problem of weight, and a kind of pair of stator rotation linear electric motors are provided.
Of the present invention pair of stator rotation linear electric motors, it comprises rotating shaft and casing, it also comprises internal stator sleeve, internal stator iron core, mover core, mover front end support portion, support portion, mover rear end, external stator iron core, internal stator winding and external stator winding,
Casing is connected with rotating shaft by bearing, and the external stator iron core is fixed on the inner surface of casing, and internal stator iron core is fixedly connected with casing by the internal stator sleeve, and the internal stator sleeve is connected with rotating shaft by bearing,
The coaxial mover core that arranges between internal stator iron core and the external stator iron core, it is interior air gap between mover core and the internal stator iron core, be outer air gap between mover core and the external stator iron core, one end of mover core is fixedly connected with rotating shaft by mover front end support portion, and the other end of mover core is connected by bearing with the outer round surface of internal stator sleeve by support portion, mover rear end;
The internal stator winding is set on the internal stator iron core, the external stator winding is set on the external stator iron core,
Internal stator iron core and mover core form the electric rotating machine structure, and external stator is unshakable in one's determination to form the cylindrical linear structure with mover core; Perhaps internal stator iron core and mover core form the cylindrical linear structure, and external stator is unshakable in one's determination to form the electric rotating machine structure with mover core.
Internal stator iron core and external stator iron core equal in length vertically, and the same side end face of internal stator iron core and external stator iron core radially all is positioned at a plane.
The axial length of external stator iron core is greater than or less than the axial length of mover core.
The electric machine structure that internal stator iron core and mover core form is permanent magnetic synchronous motor structure, induction machine structure or switched reluctance machines structure.
The external stator electric machine structure that forms with mover core unshakable in one's determination is permanent magnetic synchronous motor structure, induction machine structure or switched reluctance machines structure.
Advantage of the present invention is: moving component of the present invention can be realized rotatablely moving, rectilinear motion also or rotational motion to linear motion, it is made of the mover of inside and outside two stators by the centre, one side stator adopts the cylindrical linear motor structure, and axial force is provided, and realizes mover rectilinear motion vertically; The opposite side stator adopts the electric rotating machine structure, and tangential force is provided, and realizes mover rotatablely moving in the circumferential direction of the circle.The two the time exist, realized the rotational motion to linear motion of mover.
Electric machine structure of the present invention is applied to many-degrees of freedom system can save multiple electric motors and machinery conversion mechanism, so that the volume and weight of system reduces greatly.Has broad prospect of application in fields such as Aero-Space, Industry Control, lathe, robot, boring, office automation, flexible manufacturing and assembly system, screw thread processing and navigation systems.Reasonable in design of the present invention has been expanded the conventional motors function, and the independent control by to the both sides air gap can realize multivariant motion.Have simultaneously higher efficient, and enough output torques are provided.
Description of drawings
Fig. 1 is that two stators that internal stator iron core and mover sleeve form the cylindrical linear structure in the execution mode one rotate the structure of the linear motion actuator schematic diagrames;
Fig. 2 is two stator rotation structure of the linear motion actuator schematic diagrames that execution mode one China and foreign countries' stator core and mover sleeve form the cylindrical linear structure;
Fig. 3 is the axial length of execution mode three China and foreign countries' stator cores during less than mover sleeve axial length, and internal stator iron core rotates the structure of the linear motion actuator schematic diagrames with two stators that the mover sleeve forms the cylindrical linear structure;
Fig. 4 is the axial length of execution mode three China and foreign countries' stator cores during less than mover sleeve axial length, and the external stator two stators that form the cylindrical linear structure with the mover sleeve unshakable in one's determination rotate the structure of the linear motion actuator schematic diagrames.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1 and Fig. 2, described pair of stator rotation of present embodiment linear electric motors, it comprises rotating shaft 1 and casing 2, it also comprises internal stator sleeve 3, internal stator iron core 4, mover core 5, mover front end support portion 6, support portion, mover rear end 7, external stator iron core 8, internal stator winding 9 and external stator winding 10
The coaxial mover core 5 that arranges between internal stator iron core 4 and the external stator iron core 8, be interior air gap between mover core 5 and the internal stator iron core 4, be outer air gap between mover core 5 and the external stator iron core 8, one end of mover core 5 is fixedly connected with rotating shaft 1 by mover front end support portion 6, and the other end of mover core 5 is connected by bearing with the outer round surface of internal stator sleeve 3 by support portion, mover rear end 7;
Internal stator iron core 4 forms the electric rotating machine structure with mover core 5, and external stator unshakable in one's determination 8 forms the cylindrical linear structure with mover core 5; Perhaps internal stator iron core 4 forms the cylindrical linear structure with mover core 5, and external stator unshakable in one's determination 8 forms the electric rotating machine structure with mover core 5.
In the present embodiment, motor is comprised of two stators and a mover, all is embedded with winding on two stators, realizes spinfunction and rectilinear motion function with the mover effect respectively.Two stators are inside and outside nested, and mover adopts drag cup structure, can utilize largely the motor space.
As shown in Figure 1, internal stator iron core 4 forms the cylindrical linear structure with mover core 5, produces axial force, and this cylindrical linear can be permagnetic synchronous motor, induction machine or switched reluctance machines; Under this cylindrical linear effect, mover core 5 and rotating shaft 1 can axially move.External stator unshakable in one's determination 8 forms the electric rotating machine structure with mover core 5, produce revolving force, this electric rotating machine also can be permagnetic synchronous motor, induction machine or switched reluctance machines, under this electric rotating machine effect, mover core 5 and rotating shaft 1 can rotate, and the bearing that wherein relates to application can be applied mechanically or magnetic suspension bearing for cylinder roller bearing, rolling bearing and sliding bearing combination.
As shown in Figure 2, internal stator iron core 4 forms the electric rotating machine structure with mover core 5, produces revolving force, and this electric rotating machine can be permagnetic synchronous motor, induction machine or switched reluctance machines; Under the electric rotating machine effect, mover core 5 and rotating shaft 1 can rotate; External stator unshakable in one's determination 8 forms the cylindrical linear structure with mover core 5, produces axial force, and this cylindrical linear can be permagnetic synchronous motor, induction machine or switched reluctance machines; Under this cylindrical linear effect, mover core 5 and rotating shaft 1 can axially move.
Embodiment two: present embodiment is described below in conjunction with Fig. 1 to Fig. 4, present embodiment is further specifying execution mode one, internal stator iron core 4 and external stator iron core 8 equal in length vertically, and the same side end face of internal stator iron core 4 and external stator iron core 8 radially all is positioned at a plane.
Embodiment three: below in conjunction with Fig. 1 to Fig. 4 present embodiment is described, present embodiment is for to the further specifying of execution mode two, and the axial length of external stator iron core 8 is greater than or less than the axial length of mover core 5.
When the axial length of external stator iron core 8 during greater than the axial length of mover core 5, or the axial length of external stator iron core 8 is during less than the axial length of mover core 5, all can be by the control of internal stator winding 9 electric currents, guarantee that mover core 5 is in the screw scope, make the useful flux of interior air gap and outer air gap all constant, so that enough output torques to be provided.
Embodiment four: present embodiment is for to execution mode one, two or three further specify, and internal stator iron core 4 is permanent magnetic synchronous motor structure, induction machine structure or switched reluctance machines structure with the electric machine structure that mover core 5 forms.
Embodiment five: present embodiment is for to execution mode one, two, three or four further specify, and external stator unshakable in one's determination 8 is permanent magnetic synchronous motor structure, induction machine structure or switched reluctance machines structure with the electric machine structure that mover core 5 forms.
Embodiment six: present embodiment is for to execution mode one, two, three, four or five further specify, and the internal circular surfaces of mover core 5 and outer round surface are provided with permanent magnet, embedded winding coil, cage modle winding, conducting metal barrel or have teeth groove.
Embodiment seven: present embodiment is for to execution mode one, two, three, four or five further specify, and the internal circular surfaces of mover core 5 or outer round surface are provided with permanent magnet, embedded winding coil, cage modle winding, conducting metal barrel or have teeth groove.
Claims (7)
1. two stators rotate linear electric motors, it comprises rotating shaft (1) and casing (2), it is characterized in that: it also comprises internal stator sleeve (3), internal stator iron core (4), mover core (5), mover front end support portion (6), support portion, mover rear end (7), external stator (8) unshakable in one's determination, internal stator winding (9) and external stator winding (10), casing (2) is connected with rotating shaft (1) by bearing, external stator (8) unshakable in one's determination is fixed on the inner surface of casing (2), internal stator iron core (4) is fixedly connected with casing (2) by internal stator sleeve (3), internal stator sleeve (3) is connected with rotating shaft (1) by bearing
The coaxial mover core (5) that arranges between internal stator iron core (4) and the external stator (8) unshakable in one's determination, be interior air gap between mover core (5) and the internal stator iron core (4), mover core (5) and external stator are outer air gap between (8) unshakable in one's determination, one end of mover core (5) is fixedly connected with rotating shaft (1) by mover front end support portion (6), and the other end of mover core (5) is connected by bearing by the outer round surface of support portion, mover rear end (7) with internal stator sleeve (3);
Internal stator winding (9) is set on the internal stator iron core (4), and external stator arranges external stator winding (10) on (8) unshakable in one's determination,
Internal stator iron core (4) forms the electric rotating machine structure with mover core (5), and external stator (8) unshakable in one's determination forms the cylindrical linear structure with mover core (5); Perhaps internal stator iron core (4) forms the cylindrical linear structure with mover core (5), and external stator (8) unshakable in one's determination forms the electric rotating machine structure with mover core (5).
2. according to claim 1 pair of stator rotates linear electric motors, it is characterized in that: internal stator iron core (4) and external stator (8) equal in length vertically unshakable in one's determination, and the same side end face of internal stator iron core (4) and external stator (8) unshakable in one's determination radially all is positioned at a plane.
3. according to claim 2 pair of stator rotates linear electric motors, it is characterized in that: the axial length of external stator (8) unshakable in one's determination is greater than or less than the axial length of mover core (5).
4. according to claim 1,2 or 3 described pairs of stators rotation linear electric motors, it is characterized in that: internal stator iron core (4) is permanent magnetic synchronous motor structure, induction machine structure or switched reluctance machines structure with the electric machine structure that mover core (5) forms.
5. according to claim 1,2 or 3 described pairs of stators rotation linear electric motors, it is characterized in that: external stator (8) unshakable in one's determination is permanent magnetic synchronous motor structure, induction machine structure or switched reluctance machines structure with the electric machine structure that mover core (5) forms.
6. according to claim 1,2 or 3 described pairs of stators rotation linear electric motors, it is characterized in that: the internal circular surfaces of mover core (5) and outer round surface are provided with permanent magnet, embedded winding coil, cage modle winding, conducting metal barrel or have teeth groove.
7. according to claim 1,2 or 3 described pairs of stators rotation linear electric motors, it is characterized in that: the internal circular surfaces of mover core (5) or outer round surface are provided with permanent magnet, embedded winding coil, cage modle winding, conducting metal barrel or have teeth groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210369198.1A CN102868271B (en) | 2012-09-28 | 2012-09-28 | Double-stator rotating linear motor |
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| CN201210369198.1A CN102868271B (en) | 2012-09-28 | 2012-09-28 | Double-stator rotating linear motor |
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| CN102868271A true CN102868271A (en) | 2013-01-09 |
| CN102868271B CN102868271B (en) | 2015-03-11 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199651A (en) * | 2013-04-17 | 2013-07-10 | 上海海事大学 | Wave-activated generator |
| CN103475178A (en) * | 2013-09-30 | 2013-12-25 | 东南大学 | Linear rotation permanent magnet motor |
| CN103560646A (en) * | 2013-11-14 | 2014-02-05 | 山东大学 | Permanent magnet ring rotor cylindrical linear switch reluctance motor |
| CN103560647A (en) * | 2013-11-14 | 2014-02-05 | 山东大学 | Permanent magnet ring stator cylindrical linear switch reluctance motor |
| CN104539122A (en) * | 2014-12-08 | 2015-04-22 | 沈阳工业大学 | Rotary linear permanent magnet electric motor |
| CN104682642A (en) * | 2015-03-13 | 2015-06-03 | 河南理工大学 | Two-degree-of-freedom motor |
| CN106655673A (en) * | 2016-11-18 | 2017-05-10 | 东南大学 | Linear rotating two-freedom-degree permanent magnet actuator of stator separation type |
| CN113783389A (en) * | 2021-08-31 | 2021-12-10 | 重庆交通大学 | Modular double-stator switch reluctance linear motor |
Citations (4)
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| US6137195A (en) * | 1996-03-28 | 2000-10-24 | Anorad Corporation | Rotary-linear actuator |
| CN101789646A (en) * | 2010-01-13 | 2010-07-28 | 河南理工大学 | Multivariant linear arc-shaped motor |
| CN201742274U (en) * | 2010-08-17 | 2011-02-09 | 中国电子科技集团公司第二十一研究所 | High-reliability permanent magnet motor duplex winding redundancy structure |
| JP2012105444A (en) * | 2010-11-10 | 2012-05-31 | Yaskawa Electric Corp | Motor |
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2012
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Patent Citations (4)
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| US6137195A (en) * | 1996-03-28 | 2000-10-24 | Anorad Corporation | Rotary-linear actuator |
| CN101789646A (en) * | 2010-01-13 | 2010-07-28 | 河南理工大学 | Multivariant linear arc-shaped motor |
| CN201742274U (en) * | 2010-08-17 | 2011-02-09 | 中国电子科技集团公司第二十一研究所 | High-reliability permanent magnet motor duplex winding redundancy structure |
| JP2012105444A (en) * | 2010-11-10 | 2012-05-31 | Yaskawa Electric Corp | Motor |
Non-Patent Citations (1)
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| G.KREBS等: "Design of a permanent magnet actuator for linear and rotary movements", 《THE EUROPEAN PHYSICAL JOURNAL APPLIED PHYSICS》, vol. 44, no. 1, 25 July 2008 (2008-07-25), pages 77 - 85 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199651B (en) * | 2013-04-17 | 2015-04-22 | 上海海事大学 | Wave-activated generator |
| CN103199651A (en) * | 2013-04-17 | 2013-07-10 | 上海海事大学 | Wave-activated generator |
| CN103475178A (en) * | 2013-09-30 | 2013-12-25 | 东南大学 | Linear rotation permanent magnet motor |
| CN103560646A (en) * | 2013-11-14 | 2014-02-05 | 山东大学 | Permanent magnet ring rotor cylindrical linear switch reluctance motor |
| CN103560647A (en) * | 2013-11-14 | 2014-02-05 | 山东大学 | Permanent magnet ring stator cylindrical linear switch reluctance motor |
| CN103560647B (en) * | 2013-11-14 | 2016-03-09 | 山东大学 | A kind of permanent-magnetic clamp stator cylinder shape linear switched reluctance motor |
| CN103560646B (en) * | 2013-11-14 | 2016-04-13 | 山东大学 | A kind of permanent-magnetic clamp mover cylinder-shape linear switched reluctance machines |
| CN104539122B (en) * | 2014-12-08 | 2017-04-12 | 沈阳工业大学 | Rotary linear permanent magnet electric motor |
| CN104539122A (en) * | 2014-12-08 | 2015-04-22 | 沈阳工业大学 | Rotary linear permanent magnet electric motor |
| CN104682642A (en) * | 2015-03-13 | 2015-06-03 | 河南理工大学 | Two-degree-of-freedom motor |
| CN104682642B (en) * | 2015-03-13 | 2017-03-15 | 河南理工大学 | A kind of two-freedom motor |
| CN106655673A (en) * | 2016-11-18 | 2017-05-10 | 东南大学 | Linear rotating two-freedom-degree permanent magnet actuator of stator separation type |
| CN106655673B (en) * | 2016-11-18 | 2019-02-01 | 东南大学 | A kind of stator separate type straight line rotation two-freedom permanent magnetic actuator |
| CN113783389A (en) * | 2021-08-31 | 2021-12-10 | 重庆交通大学 | Modular double-stator switch reluctance linear motor |
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| CN102868271B (en) | 2015-03-11 |
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