CN101795050A - Superconductive high dynamic direct drive electric actuator - Google Patents

Superconductive high dynamic direct drive electric actuator Download PDF

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Publication number
CN101795050A
CN101795050A CN 201010136833 CN201010136833A CN101795050A CN 101795050 A CN101795050 A CN 101795050A CN 201010136833 CN201010136833 CN 201010136833 CN 201010136833 A CN201010136833 A CN 201010136833A CN 101795050 A CN101795050 A CN 101795050A
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China
Prior art keywords
superconductive
direct drive
drive electric
magnet ring
electric actuator
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Pending
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CN 201010136833
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Chinese (zh)
Inventor
寇宝泉
黄玉平
王春明
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Harbin Institute of Technology
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Harbin Institute of Technology
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Priority to CN 201010136833 priority Critical patent/CN101795050A/en
Publication of CN101795050A publication Critical patent/CN101795050A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a superconductive high dynamic direct drive electric actuator belonging to the technical field of motors and solves the problems that the traditional actuator has complex structure, low control frequency response and poorer dynamic property and is not suitable for a high-power steering engine system. The superconductive high dynamic direct drive electric actuator comprises a primary stage, a secondary stage and an air gap, wherein an annular coil of the primary stage is fixed in a cylindrical shield shell, and a plurality of annular coils are connected in series or in parallel to form a single-phase or multi-phase winding; a superconductive magnet ring of the secondary stage is fixed in an annular space formed by a cylindrical sealed cooler and a support shaft, and two shielding end plates are fixed at two ends of the cylindrical sealed cooler which is internally filled with low-temperature cooling medium. The superconductive magnet ring of the secondary electrode is realized by adopting a superconductive magnet block or a superconductive coil, and the low-temperature cooling medium is nitrogen, helium or neon in a liquid state. By adopting superconductor excitation to generate a high-intensity magnetic field without a retarding mechanism, the invention improves the thrust density of the actuator and can be widely applied to a steering engine servo system.

Description

Superconductive high dynamic direct drive electric actuator
Technical field
The invention relates to superconductive high dynamic direct drive electric actuator, belong to machine field.
Background technology
Steering wheel (actuator) system is the indispensable key components of missile flight control system, and the performance of steering wheel directly affects the mobility of guided missile.According to the difference of power source, steering gear system commonly used can be divided into pneumatic servo, hydraulic sterring engine and electric steering engine etc.Compare with pneumatic and hydraulic sterring engine, that electric steering engine (EMA) has is simple in structure, process and assemble easily, characteristics such as track laying, manufacturing maintenance and repacking be convenient, and easily realize remaining control, the reliability height, thereby in guided missile, associating seeker and other advanced aircrafts, obtain more and more widely application, become one of important topic of various countries' air research.One of main composition mode of electric steering engine is the mode of servomotor+decelerator, because AC servo motor has advantages such as volume is little, light weight, time constant is little, load characteristic is good, is applied in the Electrodynamic Rudder System gradually.
But also there is following problem in present Electrodynamic Rudder System: system compares with hydraulic sterring engine, and the Position Control frequency response is low, dynamic characteristic is relatively poor, and especially the high-power system problem is outstanding.
Summary of the invention
For the problem that solves existing actuator complex structure, the control frequency response is low, dynamic characteristic is relatively poor and is not suitable for high-power steering gear system, the present invention proposes a kind of superconductive high dynamic direct drive electric actuator.
A kind of superconductive high dynamic direct drive electric actuator is made of elementary, secondary and air gap, and elementary is cylindrical shape, and secondary is cylindrical, secondaryly is positioned at columnar elementaryly, and with described elementary coaxial, is uniform air gap between elementary and secondary; Elementary shield shell and a plurality of loop coil of comprising, described shield shell is a cylindrical shape, and a plurality of loop coils are fixed in the shield shell vertically successively, and a plurality of loop coil serial or parallel connections are formed single-phase or heterogeneous elementary winding; The secondary airtight cooler of cylindrical shape that comprises, back shaft, two shielding end plates and n superconductive magnet ring, the airtight cooler of described cylindrical shape is fixed on outside the back shaft, and be annular space between airtight cooler of described cylindrical shape and the back shaft outer surface, n superconductive magnet ring arranged on the back shaft that is fixed in the described annular space vertically, described superconductive magnet ring is axial charging or radial magnetizing, the magnetizing direction of every adjacent two superconductive magnet ring is opposite vertically, two shielding end plates are the circular slab that has central shaft hole, described two shielding end plates all are enclosed within on the back shaft, and being fixed on the two ends of the airtight cooler of cylindrical shape, n is a natural number.
Secondary superconductive magnet ring can adopt superconduction magnetic patch material to realize among the present invention, can also adopt superconducting coil to realize.When described superconductive magnet ring adopts superconduction magnetic patch material to realize, the poly-yoke of annular can also be set between adjacent superconductive magnet ring.
The poly-yoke of shield shell among the present invention, shielding end plate and annular all can adopt high permeability material to make.
Sub-cooled medium among the present invention can be liquid nitrogen, helium or neon.
Actuator of the present invention adopts the superconductor excitation, produces high-intensity magnetic field, has improved the pushing force density of actuator greatly.The similar linear synchronous motor of the operation principle of the actuator among the present invention, make control flexibly, the steering wheel servo system of being made up of this actuator does not need reducing gear, can directly drive load, have that power output is big, dynamic characteristic good, the linearity is high, characteristics such as bandwidth, volume are little, in light weight.
Actuator of the present invention can be applied in the steering wheel servo system.
Description of drawings
Fig. 1 is the structural representation of embodiment eight described superconductive high dynamic direct drive electric actuators.The structural representation of Fig. 2 embodiment nine described superconductive high dynamic direct drive electric actuators.Fig. 3 is the structural representation of embodiment seven described superconductive high dynamic direct drive electric actuators.
Embodiment
Embodiment one: the described a kind of superconductive high dynamic direct drive electric actuator of present embodiment is made of elementary, secondary and air gap, elementary is cylindrical shape, secondary is cylindrical, secondary be positioned at columnar elementary, and, be uniform air gap between elementary and secondary with described elementary coaxial; Elementary shield shell 1 and a plurality of loop coil 2 of comprising, described shield shell 1 is a cylindrical shape, and a plurality of loop coils 2 are fixed in the shield shell 1 vertically successively, and a plurality of loop coil 2 serial or parallel connections are formed single-phase or heterogeneous elementary winding; The secondary airtight cooler 5 of cylindrical shape that comprises, back shaft 9, two shielding end plates 8 and n superconductive magnet ring 6, the airtight cooler 5 of described cylindrical shape is fixed on outside the back shaft 9, and between airtight cooler 5 of described cylindrical shape and back shaft 9 outer surfaces is annular space, n superconductive magnet ring 6 arranged on the back shaft 9 that is fixed in the described annular space vertically, described superconductive magnet ring 6 is axial charging or radial magnetizing, the magnetizing direction of every adjacent two superconductive magnet ring 6 is opposite vertically, two shielding end plates 8 are for having the circular slab of central shaft hole, described two shielding end plates 8 all are enclosed within on the back shaft 9, and are fixed on the two ends of the airtight cooler 5 of cylindrical shape.Described n is a natural number.
The described actuator of present embodiment adopts the operation principle of linear synchronous motor, and the airtight cooler 5 of cylindrical shape of back cooling effect is set at secondary outer surface.
The control method of the described actuator of present embodiment is identical with the control method of linear synchronous motor, controls flexibly, is swift in response.
Embodiment two: the difference of present embodiment and embodiment one described superconductive high dynamic direct drive electric actuator is, the described elementary coil stationary frame that also comprises, described coil stationary frame is fixed on shield shell 1 inner surface, and coil stationary is in described coil stationary frame.
Present embodiment has increased the coil stationary frame that is used for fixing coil, more helps the fixing of primary coil.
Coil stationary frame described in the present embodiment can adopt following structure (shown in Fig. 1-3): be made up of stationary cylinder 3 and a plurality of toroidal membrane 4, described a plurality of toroidal membrane 4 evenly distributes vertically, and the external peripheral surface of each toroidal membrane 4 all is fixed on the inner surface of shield shell 1, the inner circumferential surface of described each toroidal membrane 4 is fixedlyed connected with the outer surface of stationary cylinder 3, and each coil stationary is in the annular space that adjacent two toroidal membranes 4 and shield shell 1, stationary cylinder 3 are formed.
Embodiment three: the difference of present embodiment and embodiment one described superconductive high dynamic direct drive electric actuator is to be filled with the sub-cooled medium in the airtight cooler 5 of described cylindrical shape.
Sub-cooled medium described in the present embodiment can adopt liquid nitrogen, helium or neon.
Embodiment four: the difference of present embodiment and embodiment one described superconductive high dynamic direct drive electric actuator is, the secondary magnet ring fixed mount 7 that also comprises, described n annular superconductive magnet ring 6 is fixed on the back shaft 9 by magnet ring fixed mount 7.
The described magnet ring fixed mount 7 circle of position tubulars of present embodiment, described columnar magnet ring fixed mount 7 are enclosed within n annular superconductive magnet ring 6 outsides.
Embodiment five: the difference of present embodiment and embodiment one described superconductive high dynamic direct drive electric actuator is, shield shell 1 and shielding end plate 8 are made of high permeability material.
Embodiment six: the difference of execution mode and embodiment one described superconductive high dynamic direct drive electric actuator is that this actuator is moving primary structure.
Embodiment seven: the difference of execution mode and embodiment one to six any described superconductive high dynamic direct drive electric actuator of execution mode is, described superconductive magnet ring 6 is annular superconducting coils, n annular superconducting coil 11 around on the contrary, n annular superconducting coil is connected in series successively.
Referring to Fig. 3, the structural representation of the described electric actuator of expression present embodiment adopts annular superconducting coil 11 to realize superconductive magnet ring 6 in the present embodiment, that is: adopt superconductor to turn to coil, and, make described coil produce magnetic field by in described coil, applying electric current.The intensity in secondary generation magnetic field can be adjusted by the electric current of controlling in the annular superconducting coil 11 in the present embodiment.
Embodiment eight: the difference of execution mode and embodiment one to six any described superconductive high dynamic direct drive electric actuator of execution mode is that each superconductive magnet ring 6 is made up of several superconducting magnet bulks.
Referring to Fig. 1, the structural representation of the described electric actuator of expression present embodiment adopts the superconducting magnet bulk to realize superconductive magnet ring 6 in the present embodiment.
Embodiment nine: the difference of execution mode and embodiment eight described superconductive high dynamic direct drive electric actuators is, secondaryly comprise that also n+1 annular gathers yoke 10, poly-yoke 10 of a described n+1 annular and n annular superconductive magnet ring 6 alternate settings.
Referring to shown in Figure 2, present embodiment has increased the poly-yoke 10 of annular between adjacent superconductive magnet ring 6, under the prerequisite that guarantees magnetic field intensity, reduced the use amount of superconductor bulk
The poly-yoke 10 of annular in the present embodiment can adopt high permeability material to constitute.
The structure of actuator of the present invention is not limited to the described structure of above-mentioned each embodiment, can also be the technical scheme that obtains after the reasonable combination of the technical characterictic put down in writing of the respective embodiments described above.

Claims (10)

1. a superconductive high dynamic direct drive electric actuator is characterized in that it is made of elementary, secondary and air gap, and elementary is cylindrical shape, secondary is cylindrical, secondaryly being positioned at columnar elementaryly, and with described elementary coaxial, is uniform air gap between elementary and secondary; Elementary shield shell (1) and a plurality of loop coil (2) of comprising, described shield shell (1) is a cylindrical shape, a plurality of loop coils (2) are fixed in the shield shell (1) vertically successively, and a plurality of loop coils (2) serial or parallel connection is formed single-phase or heterogeneous elementary winding; The secondary airtight cooler of cylindrical shape (5) that comprises, back shaft (9), two shield end plate (8) and n superconductive magnet ring (6), the airtight cooler of described cylindrical shape (5) is fixed on outside the back shaft (9), and between airtight cooler of described cylindrical shape (5) and back shaft (9) outer surface is annular space, n superconductive magnet ring (6) arranged on the back shaft (9) that is fixed in the described annular space vertically, described superconductive magnet ring (6) is axial charging or radial magnetizing, the magnetizing direction of every adjacent two superconductive magnet ring (6) is opposite vertically, two shielding end plates (8) are for having the circular slab of central shaft hole, described two shielding end plates (8) all are enclosed within on the back shaft (9), and being fixed on the two ends of the airtight cooler of cylindrical shape (5), n is a natural number.
2. superconductive high dynamic direct drive electric actuator according to claim 1 is characterized in that the described elementary coil stationary frame that also comprises, described coil stationary frame is fixed on shield shell (1) inner surface, and coil stationary is in described coil stationary frame.
3. superconductive high dynamic direct drive electric actuator according to claim 2, it is characterized in that described coil stationary frame is made up of stationary cylinder (3) and a plurality of toroidal membrane (4), described a plurality of toroidal membrane (4) evenly distributes vertically, and the external peripheral surface of each toroidal membrane (4) all is fixed on the inner surface of shield shell (1), the inner circumferential surface of described each toroidal membrane (4) is fixedlyed connected with the outer surface of stationary cylinder (3), and each coil stationary is at adjacent two toroidal membranes (4) and shield shell (1), in the annular space that stationary cylinder (3) is formed.
4. superconductive high dynamic direct drive electric actuator according to claim 1 is characterized in that being filled with the sub-cooled medium in the airtight cooler of described cylindrical shape (5).
5. superconductive high dynamic direct drive electric actuator according to claim 1 is characterized in that the secondary magnet ring fixed mount (7) that also comprises, described n annular superconductive magnet ring (6) is fixed on the back shaft (9) by magnet ring fixed mount (7).
6. superconductive high dynamic direct drive electric actuator according to claim 1 is characterized in that shield shell (1) and shielding end plate (8) adopt high permeability material to make.
7. superconductive high dynamic direct drive electric actuator according to claim 1 is characterized in that this actuator is moving primary structure.
8. according to the described superconductive high dynamic direct drive electric actuator of any one claim of claim 1 to 7, it is characterized in that described superconductive magnet ring (6) is annular superconducting coil, every adjacent two annular superconducting coils (11) around to being contrary, n annular superconducting coil (11) is connected in series successively.
9. according to the described superconductive high dynamic direct drive electric actuator of any one claim of claim 1 to 7, it is characterized in that each superconductive magnet ring (6) is made up of several superconducting magnet bulks.
10. superconductive high dynamic direct drive electric actuator according to claim 9 is characterized in that secondaryly comprising that also n+1 annular gathers yoke (10), poly-yoke (10) of a described n+1 annular and the alternate setting of n superconductive magnet ring (6).
CN 201010136833 2010-03-31 2010-03-31 Superconductive high dynamic direct drive electric actuator Pending CN101795050A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102594087A (en) * 2012-03-15 2012-07-18 西南交通大学 Cylinder type synchronous linear motor with bulk superconductor magnetic pole
CN102594088A (en) * 2012-03-15 2012-07-18 西南交通大学 Cylinder type synchronous linear motor with superconducting magnet magnetic pole
CN104901511A (en) * 2015-06-04 2015-09-09 哈尔滨工业大学 Transverse flux high-speed superconducting motor system
CN104901512A (en) * 2015-06-24 2015-09-09 天津大学 Ocean wave direct-driven double-side superconductive linear power generation system
CN114649919A (en) * 2020-12-18 2022-06-21 中国航天科工飞航技术研究院(中国航天海鹰机电技术研究院) Multiphase superconducting linear electromagnetic propulsion system
CN114649919B (en) * 2020-12-18 2024-03-15 中国航天科工飞航技术研究院(中国航天海鹰机电技术研究院) Multiphase superconducting linear electromagnetic propulsion system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6477463A (en) * 1987-09-17 1989-03-23 Toshiba Corp Superconductive rotor
CN1745512A (en) * 2003-01-28 2006-03-08 西门子公司 Machine comprising a rotor and a superconducting rotor winding
CN101355291A (en) * 2008-09-19 2009-01-28 湘潭电机股份有限公司 Super conductive motor and manufacturing method thereof
CN101663809A (en) * 2007-03-27 2010-03-03 泽奈基电力公司 Linear machine with primary part and sub section

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6477463A (en) * 1987-09-17 1989-03-23 Toshiba Corp Superconductive rotor
CN1745512A (en) * 2003-01-28 2006-03-08 西门子公司 Machine comprising a rotor and a superconducting rotor winding
CN101663809A (en) * 2007-03-27 2010-03-03 泽奈基电力公司 Linear machine with primary part and sub section
CN101355291A (en) * 2008-09-19 2009-01-28 湘潭电机股份有限公司 Super conductive motor and manufacturing method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102594087A (en) * 2012-03-15 2012-07-18 西南交通大学 Cylinder type synchronous linear motor with bulk superconductor magnetic pole
CN102594088A (en) * 2012-03-15 2012-07-18 西南交通大学 Cylinder type synchronous linear motor with superconducting magnet magnetic pole
CN104901511A (en) * 2015-06-04 2015-09-09 哈尔滨工业大学 Transverse flux high-speed superconducting motor system
CN104901512A (en) * 2015-06-24 2015-09-09 天津大学 Ocean wave direct-driven double-side superconductive linear power generation system
CN104901512B (en) * 2015-06-24 2018-01-12 天津大学 The bilateral superconduction linear generating system of sea wave direct drive formula
CN114649919A (en) * 2020-12-18 2022-06-21 中国航天科工飞航技术研究院(中国航天海鹰机电技术研究院) Multiphase superconducting linear electromagnetic propulsion system
CN114649919B (en) * 2020-12-18 2024-03-15 中国航天科工飞航技术研究院(中国航天海鹰机电技术研究院) Multiphase superconducting linear electromagnetic propulsion system

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Application publication date: 20100804