CN105490409A - Two-phase cylinder electromagnetic linear actuator - Google Patents
Two-phase cylinder electromagnetic linear actuator Download PDFInfo
- Publication number
- CN105490409A CN105490409A CN201610040934.7A CN201610040934A CN105490409A CN 105490409 A CN105490409 A CN 105490409A CN 201610040934 A CN201610040934 A CN 201610040934A CN 105490409 A CN105490409 A CN 105490409A
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- China
- Prior art keywords
- phase
- phase armature
- mover
- armature winding
- coil
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
Abstract
The invention provides a two-phase cylinder electromagnetic linear actuator comprising a rotor iron core (1), axial bearings (2), a stator (3), excitation windings (4) and armature windings. The rotor iron core (1) has the shape of a long cylinder. Arched protrusions are arranged outside the circumference of the rotor iron core (1) to act as rotor poles. There are two columns of rotor poles arranged along an axial direction. The stator (3) is cylindrical, and the internal side of the stator (3) is provided with annular protrusions. One armature coil is wound on each rotor pole. The rotor poles on which A-phase armature coils (5) are arranged and the rotor poles on which B-phase armature coils (6) are arranged are staggered for half of pole pitch in the axial direction. Each excitation coil is wound between two rotor poles along the circumferential direction of the rotor iron core (1). The adjacent excitation coils are opposite in winding direction. Two phases of windings are utilized to directly generate thrust, which is simpler and more reliable in comparison with the mode of utilizing a rotary motor and a hydraulic cylinder to generate thrust.
Description
Technical field
The present invention relates to two-phase cylinder electromagnetic linear actuator, belong to specific type of electric machine technical field.
Background technology
Traditional linear actuator is that electro-hydraulic servo drives, and this electro-hydraulic servo Linear Actuation System can divide following components: the compositions such as controller, hydraulic oil cylinder type actuator, hydraulic pump, pipeline.Hydraulic pump is to provide the power set of constant oil pressure, if electromagnetic actuator replaces electro-hydraulic servo actuator, then can make that system configuration is small and exquisite, response speed is quick, start control efficiency improves, energy consumption reduces, and eliminate electro-hydraulic servo actuating system exist leakage of oil, fail safe, complex structure and other problems, improve real-time detection and the trouble diagnosibility of system, improve maintainability and reduce the weight of system.
Traditional electromagnetic actuator major part has electric rotating machine to coordinate worm-and-wheel gear to provide thrust.Cylinder electromagnetic linear actuator does not need directly to produce rectilinear motion through worm-and-wheel gear, and structure is simplified greatly, and movement inertia reduces, and dynamic response performance and positioning precision improve greatly; Also improve reliability simultaneously, saved cost, make manufacture and safeguard easier.
Investigate according to applicant, the patent that existing part two-phase cylindrical linear actuator is relevant, such as application number is the application for a patent for invention of 201310601462.4: " composite excitation cylindrical shape two-phase switched relutance linear motor ", disclose and a kind of adopt A phase winding and B phase winding double winding and Bipolar current exciting method, by controlling A phase winding and B phase winding exciting current general orientation and size, enable mover core carry out bilateral reciprocation, and make motor output electromagnetic push increase 20%.Application number is the application for a patent for invention of 201310585295.9, discloses a kind of a kind of cylindrical shape two-phase switch reluctance oscillation motor comprising stator, mover, motor output shaft and reseting spring leaf.These two kinds are all switched reluctance machines.
In addition, the patent No. is the mandate patent of invention of ZL201010189920.4: a kind of cylindrical vehicle active suspension electromagnetic actuator, the Actuator technique invented is characterised in that: the elementary assembling comprising the through hole with tooling shaft shape and the secondary assembling of installing in the through hole of elementary assembling, elementary assembling includes winding iron core assembling, there is winding iron core to assemble and comprise insulation back-up ring, stator punching and primary coil, insulation back-up ring is through cylindrical structure, through hole is the inside of cylindrical structure, stator punching is provided with multiple, be socketed in side by side insulation outer retainer and with insulation back-up ring axes normal, primary coil is arranged between adjacent two stator punchings and is also wound around insulation outer retainer, secondary assembling comprises permanent magnet and columniform piston rod, and permanent magnet is coated on the side of piston rod and its pole orientation is parallel with piston rod axis direction.This patent is that cylindrical linear actuator provides a kind of well application background.
Technology disclosed by the invention and such scheme are neither same.First excitation winding is the sub-circumference coiling of moving, provides onesize magnetic field therefore to two symmetrical phase windings.
In addition, due to different from the motor of traditional band excitation winding in structure, therefore the application is not that electric rotating machine launches the traditional line motor that obtains simply, but a kind of linear electric motors of brand new, as linear actuator.
Summary of the invention
In order to invention two-phase cylinder electromagnetic linear actuator, simplify the actuator of original electric rotating machine composition and the composition of hydraulic actuator, provide the linear actuator that two phase windings can realize, the present invention adopts following technical scheme:
Two-phase cylinder electromagnetic linear actuator, comprises mover core (1), cod (2), stator (3), excitation winding (4) and armature winding, it is characterized in that:
Described mover core (1) is elongated cylindrical, and have arch protruding as mover pole outside the circumference of mover core (1), mover pole has two row vertically, the mover pole axis of same row to distance be a pole span; Two row mover poles are upper symmetrical at mover core (1), wherein each mover of row extremely on be wound with an A phase armature coil (5), another row mover extremely on be wound with a B phase armature coil (6); Stagger half pole span in the axial direction in mover pole and the mover pole at B phase armature coil (6) place at A phase armature coil (5) place;
Respectively there is one section of polished rod at mover core (1) two ends, two sections of polished rods are installed respectively a cod (2), the outside of cod (2) is arranged on stator (3) two ends, under the effect of cod (2), mover core (1) can move vertically;
Cylindrically, mover core (1) is positioned at cylinder to described stator (3), and there is annular projection the inner side of stator (3) as stator poles, and each annular projection distance is in the axial direction a pole span;
Described excitation winding (4) is composed in series by several magnet exciting coil, and each magnet exciting coil is wrapped between two mover poles along the circumferencial direction of mover core, and the coiling direction of adjacent magnet exciting coil is contrary;
A phase armature coil (5) and B phase armature coil (6) are all around the mover pole coiling at place, adjacent A phase armature coil (5) coiling direction is contrary, forms A phase armature winding after all A phase armature coil (5) serial or parallel connections; Adjacent B phase armature coil (6) coiling direction is also contrary, forms B phase armature winding after all B phase armature coil (6) serial or parallel connections.
Two-phase cylinder electromagnetic linear actuator as above, it is characterized in that: the two ends of A phase armature winding are connected on two brachium pontis mid points of a single-phase H bridging parallel operation respectively, the two ends of B phase armature winding are connected on two brachium pontis mid points of second single-phase H bridging parallel operation respectively; Lead to forward current when A phase self-induction rises to A phase armature winding, lead to negative current when A phase self-induction declines to A phase armature winding, then A phase armature winding can produce positive thrust; Lead to forward current when B phase self-induction rises to B phase armature winding, lead to negative current when B phase self-induction declines to A phase armature winding, then B phase armature winding also can produce positive thrust; In like manner, lead to negative current when A phase self-induction rises to A phase armature winding, lead to forward current when A phase self-induction declines to A phase armature winding, then A phase armature winding can produce negative thrust; Lead to negative current when B phase self-induction rises to B phase armature winding, lead to forward current when B phase self-induction declines to A phase armature winding, then B phase armature winding also can produce negative thrust; The size of adjustment exciting current can change the size of thrust.
Beneficial effect of the present invention is as follows:
(1) first utilize two phase windings directly to produce thrust, the mode that Billy's electric rotating machine and hydraulic cylinder produce thrust is more simple, also more reliable;
(2) two phase windings are symmetrical, eliminate each phase asymmetry problem that traditional line motor end effect causes;
(3) do not have permanent magnet, and exciting current is adjustable, thrust output is adjustable, can work under high-temperature vibrating environment.
Accompanying drawing explanation
Fig. 1 is two-phase cylinder electromagnetic linear actuator sectional side elevation of the present invention.Wherein: 1, mover core, 2, cod, 3, stator, 4, excitation winding, 5, A phase armature coil, 6, B phase armature coil.
Fig. 2 be two-phase cylinder electromagnetic linear actuator of the present invention along the cross-sectional figure of Fig. 1 E-E, wherein: 5, A phase armature coil, 6, B phase armature coil.
Fig. 3 is two-phase cylinder electromagnetic linear actuator winding of the present invention and converter connection layout.
Fig. 4 is two-phase cylinder electromagnetic linear actuator fundamental diagram.Wherein L
pp phase armature winding self-induction, L
pfthe mutual inductance of p phase armature winding and excitation winding, I
pp phase armature winding electric current, T
pfit is the electromagnetic torque that p phase armature winding produces.
Embodiment
Below in conjunction with accompanying drawing, the invention is described in further details.
Fig. 1 is two-phase cylinder electromagnetic linear actuator sectional side elevation of the present invention.Two-phase cylinder electromagnetic linear actuator comprises mover core (1), cod (2), stator (3), excitation winding (4) and armature winding.The feature of two-phase cylinder electromagnetic linear actuator is:
Described mover core (1) is elongated cylindrical, and have arch protruding as mover pole outside the circumference of mover core (1), mover pole has two row vertically, the mover pole axis of same row to distance be a pole span; Two row mover poles are upper symmetrical at mover core (1), wherein each mover of row extremely on be wound with an A phase armature coil (5), another arrange each mover extremely on be wound with a B phase armature coil (6); Stagger half pole span in the axial direction in mover pole and the mover pole at B phase armature coil (6) place at A phase armature coil (5) place.
Respectively there is one section of polished rod at mover core (1) two ends, two sections of polished rods are installed respectively a cod (2), the outside of cod (2) is arranged on stator (3) two ends, under the effect of cod (2), mover core (1) can move vertically.
Cylindrically, there is annular projection the inner side of stator to described stator (3), and each annular projection distance is in the axial direction a pole span;
Described excitation winding (4) is composed in series by several magnet exciting coil, and each magnet exciting coil is wrapped between two mover poles along the circumferencial direction of mover core (1).First magnet exciting coil around between first the mover pole and second mover pole of A phase and B phase, second magnet exciting coil around A phase with between B phase second mover pole and the 3rd mover pole, by that analogy; The coiling direction of adjacent magnet exciting coil is contrary.
A phase armature coil (5) and B phase armature coil (6) are all around the mover pole coiling at place, adjacent A phase armature coil (5) coiling direction is contrary, forms A phase armature winding after all A phase armature coil (5) serial or parallel connections; Adjacent B phase armature coil (6) coiling direction is also contrary, forms B phase armature winding after all B phase pivot coil (6) serial or parallel connections.
A phase armature coil and B phase armature coil all with the axis being parallel at mover core place, and with the central axis at be wound around place, mover pole.
Fig. 2 is two-phase cylinder electromagnetic linear actuator of the present invention along Fig. 1 E-E cross-sectional figure, A phase armature coil (5) and B phase armature coil (6) around the mover pole coiling at place.Have arch protruding as mover pole outside the circumference of mover core, mover pole has two row vertically; Two row mover poles are upper symmetrical in stator core (1); Wherein one row each mover extremely on be wound with an A phase armature coil (5), another row mover extremely on be wound with a B phase armature coil (6).
Fig. 3 is two-phase cylinder electromagnetic linear actuator winding of the present invention and converter connection layout.The two ends of A phase armature winding are connected on two brachium pontis mid points of a single-phase H bridging parallel operation respectively, and the two ends of B phase armature winding are connected on two brachium pontis mid points of second single-phase H bridging parallel operation respectively.
Fig. 4 is two-phase cylinder electromagnetic linear actuator fundamental diagram.Lead to forward current when A phase self-induction rises to A phase armature winding, lead to negative current when A phase self-induction declines to A phase armature winding, then A phase armature winding can produce positive thrust; Lead to forward current when B phase self-induction rises to B phase armature winding, lead to negative current when B phase self-induction declines to A phase armature winding, then B phase armature winding also can produce positive thrust; In like manner, lead to negative current when A phase self-induction rises to A phase armature winding, lead to forward current when A phase self-induction declines to A phase armature winding, then A phase armature winding can produce negative thrust; Lead to negative current when B phase self-induction rises to B phase armature winding, lead to forward current when B phase self-induction declines to A phase armature winding, then B phase armature winding also can produce negative thrust; The size of adjustment exciting current can change the size of thrust.
The two-phase cylinder electromagnetic linear actuator proposed the present invention below carries out the explanation of operation principle.
The magnetic linkage caused due to self electric current of A phase armature winding induction has identical path, the therefore self-induction L of A phase armature winding with the magnetic linkage that A phase armature winding induced excitation winding produces
awith the mutual inductance L of A phase armature winding and excitation winding
apthere is identical variation tendency.When stator poles is with when wherein a phase promoter is extremely completely overlapping, the magnetic resistance of the linkage of the armature winding that this phase promoter is extremely gone up is minimum, magnetic linkage is maximum, and the self-induction of this phase winding is maximum, and the mutual inductance of this phase armature winding and excitation winding is also maximum.When a phase promoter pole and stator poles depart from completely, the magnetic resistance of this Polar armature winding is maximum, magnetic linkage is minimum, and the self-induction of this phase armature winding is minimum, and the mutual inductance of this phase armature winding and excitation winding is also minimum.
Therefore lead to forward current when A phase self-induction rises to A phase armature winding, then A phase armature winding can produce positive thrust.Now B phase self-induction is in the decline stage, and pass to negative current now to B phase armature winding, then B phase armature winding also can produce positive thrust.
Lead to forward current when B phase self-induction rises to B phase armature winding, then B phase armature winding can produce positive thrust.Now A phase self-induction is in the decline stage, and pass to negative current now to A phase armature winding, then A phase armature winding also can produce positive thrust.
In like manner, lead to negative current when A phase self-induction rises to A phase armature winding, then A phase armature winding can produce negative thrust.Now B phase self-induction is in the decline stage, and pass to forward current now to B phase armature winding, then B phase armature winding also can produce negative thrust.
Lead to negative current when B phase self-induction rises to B phase armature winding, then B phase armature winding can produce negative thrust.Now A phase self-induction is in the decline stage, and pass to forward current now to A phase armature winding, then A phase armature winding also can produce negative thrust.
It is to be noted; the above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily and replacement, all should be encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (2)
1. two-phase cylinder electromagnetic linear actuator, comprises mover core (1), cod (2), stator (3), excitation winding (4) and armature winding, it is characterized in that:
Described mover core (1) is elongated cylindrical, and have arch protruding as mover pole outside the circumference of mover core (1), mover pole has two row vertically, the mover pole axis of same row to distance be a pole span; Two row mover poles are upper symmetrical at mover core (1), wherein each mover of row extremely on be wound with an A phase armature coil (5), another arrange each mover extremely on be wound with a B phase armature coil (6); Stagger half pole span in the axial direction in mover pole and the mover pole at B phase armature coil (6) place at A phase armature coil (5) place;
Respectively there is one section of polished rod at mover core (1) two ends, two sections of polished rods are installed respectively a cod (2), the outside of cod (2) is arranged on stator (3) two ends, under the effect of cod (2), mover core (1) can move vertically;
Cylindrically, mover core (1) is positioned at cylinder to described stator (3), and there is annular projection the inner side of stator (3) as stator poles, and each annular projection distance is in the axial direction a pole span;
Described excitation winding (4) is composed in series by several magnet exciting coil, and each magnet exciting coil is wrapped between two mover poles along the circumferencial direction of mover core, and the coiling direction of adjacent magnet exciting coil is contrary;
A phase armature coil (5) and B phase armature coil (6) are all around the mover pole coiling at place, adjacent A phase armature coil (5) coiling direction is contrary, forms A phase armature winding after all A phase armature coil (5) serial or parallel connections; Adjacent B phase armature coil (6) coiling direction is also contrary, forms B phase armature winding after all B phase armature coil (6) serial or parallel connections.
2. two-phase cylinder electromagnetic linear actuator as claimed in claim 1, it is characterized in that: the two ends of A phase armature winding are connected on two brachium pontis mid points of a single-phase H bridging parallel operation respectively, the two ends of B phase armature winding are connected on two brachium pontis mid points of second single-phase H bridging parallel operation respectively; Lead to forward current when A phase self-induction rises to A phase armature winding, lead to negative current when A phase self-induction declines to A phase armature winding, then A phase armature winding can produce positive thrust; Lead to forward current when B phase self-induction rises to B phase armature winding, lead to negative current when B phase self-induction declines to A phase armature winding, then B phase armature winding also can produce positive thrust; In like manner, lead to negative current when A phase self-induction rises to A phase armature winding, lead to forward current when A phase self-induction declines to A phase armature winding, then A phase armature winding can produce negative thrust; Lead to negative current when B phase self-induction rises to B phase armature winding, lead to forward current when B phase self-induction declines to A phase armature winding, then B phase armature winding also can produce negative thrust; The size of adjustment exciting current can change the size of thrust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610040934.7A CN105490409B (en) | 2016-01-22 | 2016-01-22 | Two-phase cylinder electromagnetic linear actuator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610040934.7A CN105490409B (en) | 2016-01-22 | 2016-01-22 | Two-phase cylinder electromagnetic linear actuator |
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| Publication Number | Publication Date |
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| CN105490409A true CN105490409A (en) | 2016-04-13 |
| CN105490409B CN105490409B (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610040934.7A Active CN105490409B (en) | 2016-01-22 | 2016-01-22 | Two-phase cylinder electromagnetic linear actuator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531963A (en) * | 2020-10-10 | 2021-03-19 | 穆特科技（武汉）股份有限公司 | Electric cylinder of linear servo motor |
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| JP2007252199A (en) * | 2007-05-15 | 2007-09-27 | Seiko Epson Corp | Electric motor |
| CN101304207A (en) * | 2008-06-03 | 2008-11-12 | 西安交通大学 | Coil mutual inductance coupling line switch reluctance motor |
| CN103178687A (en) * | 2011-12-26 | 2013-06-26 | 上海磁浮交通发展有限公司 | Bilateral mixed excitation type high-thrust linear synchronous motor |
| CN103560605A (en) * | 2013-11-19 | 2014-02-05 | 哈尔滨工业大学 | Cylindrical two-phase switch reluctance oscillation motor |
| CN103560648A (en) * | 2013-11-25 | 2014-02-05 | 哈尔滨工业大学 | Mixed excitation cylindrical two-phase switch reluctance linear motor |
| CN105141104A (en) * | 2015-10-22 | 2015-12-09 | 山东大学 | Yoke excitation winding high power density hybrid excitation permanent magnet linear generator |
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2016
- 2016-01-22 CN CN201610040934.7A patent/CN105490409B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007252199A (en) * | 2007-05-15 | 2007-09-27 | Seiko Epson Corp | Electric motor |
| CN101304207A (en) * | 2008-06-03 | 2008-11-12 | 西安交通大学 | Coil mutual inductance coupling line switch reluctance motor |
| CN103178687A (en) * | 2011-12-26 | 2013-06-26 | 上海磁浮交通发展有限公司 | Bilateral mixed excitation type high-thrust linear synchronous motor |
| CN103560605A (en) * | 2013-11-19 | 2014-02-05 | 哈尔滨工业大学 | Cylindrical two-phase switch reluctance oscillation motor |
| CN103560648A (en) * | 2013-11-25 | 2014-02-05 | 哈尔滨工业大学 | Mixed excitation cylindrical two-phase switch reluctance linear motor |
| CN105141104A (en) * | 2015-10-22 | 2015-12-09 | 山东大学 | Yoke excitation winding high power density hybrid excitation permanent magnet linear generator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531963A (en) * | 2020-10-10 | 2021-03-19 | 穆特科技（武汉）股份有限公司 | Electric cylinder of linear servo motor |
| CN112531963B (en) * | 2020-10-10 | 2023-03-14 | 穆特科技（武汉）股份有限公司 | Electric cylinder of linear servo motor |
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| CN105490409B (en) | 2018-01-12 |
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Inventor after: Shi Liwei Inventor after: Guo Yingzhi Inventor after: Lv Xinqing Inventor after: Xiao Dong Inventor after: Zhou Shengbao Inventor after: Zhang Xueyi Inventor after: Liu Congzhen Inventor before: Shi Liwei Inventor before: Gong Hecong Inventor before: Zhang Xueyi Inventor before: Zhang Hongxin Inventor before: Liu Congzhen Inventor before: Mou Hongren |
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