CN108400662A - A kind of heavy caliber astronomical telescope drum type brake camber line magneto - Google Patents
A kind of heavy caliber astronomical telescope drum type brake camber line magneto Download PDFInfo
- Publication number
- CN108400662A CN108400662A CN201810159240.4A CN201810159240A CN108400662A CN 108400662 A CN108400662 A CN 108400662A CN 201810159240 A CN201810159240 A CN 201810159240A CN 108400662 A CN108400662 A CN 108400662A
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- CN
- China
- Prior art keywords
- rotor
- drum type
- type brake
- camber line
- heavy caliber
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
-
- 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
- H02K1/17—Stator cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/12—Machines characterised by the modularity of some components
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention relates to a kind of heavy caliber astronomical telescope drum type brake camber line magnetoes, the cylindrical shape camber line magneto includes rotor portion (I) and the part stator (II), and rotor portion (I) is sleeved on the outside of stationary part (II)；Its rotor section is made of three drum type brake rotor modules, each drum type brake rotor module is made of drum type brake rotor core and circular armature winding (4), in the slot for the inner periphery that circular armature winding (4) is located at drum type brake rotor core, wherein drum type brake rotor core includes rotor back yoke (1), rotor tooth (2), rotor slot (3), and rotor tooth and rotor slot are located at the inner hole wall of rotor back yoke；Stationary part is made of stator core (5) and Surface Mount in the alternate polarisation permanent magnet array (6) outside stator core.Present invention accomplishes telescope pitch axis being freely rotated within the scope of 180 °；Secondly, circular armature winding increases air gap area, improves the torque density and Torque Ripple of motor.
Description
Technical field
The present invention relates to a kind of heavy caliber astronomical telescope drum type brake camber line magnetoes, can be used for astronomical telescope and bow
Face upward the high-accuracy movement occasion that axis is freely rotated within the scope of 180 °.
Background technology
The traditional transmission mode of heavy caliber astronomical telescope mainly have Worm Wheel System, gear drive, frictional drive with
And torque motor is co-axially mounted transmission etc., these traditional kinds of drive play important angle in the evolution of telescope
Color, but have the shortcomings that backlass, Contact Stress of Gear are big, high frequency profile error is big.Therefore, with the hair of science and technology
Exhibition, in order to solve disadvantages mentioned above, European Southern Observatory takes the lead in proposing the kind of drive using spliced arc-shape motor, and surrounding should
The kind of drive, domestic and international many research institutions and scholar have carried out correlative study and have worked and achieve great achievement.China
Patent (application number：CN92223750.6 a kind of Arc shape electric motor) is disclosed, the motor is by the stator of arc-shaped and flying for steel
It takes turns rotor to constitute, the rotation of rotor is realized by the magnetic field interaction of rotating excitation field and the rotor inductive currents generation of stator
Transhipment is dynamic.Chinese patent (application number：CN200710134531.X a kind of Ultra-Low Speed for large-scale astronomical telescope) is disclosed
Accurate arc electric motor, at the same the team disclose again high wind carry the lower large telescope control system for permanent-magnet synchronous motor of disturbance and its
Method (application number：CN201410169656.6).Compared to traditional approach, there is intermediate pass using the kind of drive of arc electric motor
The advantages that rotating ring section is few, simple in structure, easy to maintain and transmission efficiency, but since above-mentioned arc electric motor winding itself is deposited
In end, cause the torque density of motor not big enough；Along with slot effect, side-termind effect, three-phase possessed by motor itself
Higher harmonic current caused by winding asymmetry, it will cause motor to generate location torque and torque fluctuations, weaken motor
Steady, the reliable, accuracy of operation.For above-mentioned problem in science, mostly used at present based on the unit in arc-shaped motor
The design of motor changes the methods of tooth slot structure and addition supplementary structure to solve.Heavy caliber astronomical telescope arc electric motor
There is also many problem in science are urgently to be resolved hurrily, such as motor torque density further increases, torque pulsation further decreases.
Invention content
Technical problem：In order to overcome the defect present in above-mentioned arc electric motor, the present invention to propose a kind of heavy caliber astronomical
Telescope drum type brake camber line magneto improves the torque density of motor, weakens location torque and torque fluctuations, realizes camber line
Stationarity, reliability and the accuracy of motor operation.
Technical solution：In order to achieve the above object, a kind of heavy caliber astronomical telescope of the invention with drum type brake camber line forever
Magneto, including rotor portion and stationary part, rotor portion are sleeved on the outside of stationary part；Its rotor section is by three circles
Cartridge type rotor module forms, each drum type brake rotor module is made of drum type brake rotor core and circular armature winding, circle
Cyclic annular armature winding is located in the slot of the inner periphery of drum type brake rotor core, wherein drum type brake rotor core include rotor back yoke,
Rotor tooth, rotor slot, rotor tooth and rotor slot are located at the inner hole wall of rotor back yoke；Stationary part by stator core and Surface Mount in
Alternate polarisation permanent magnet array outside stator core is constituted.
Wherein,
The stator core is the segmental arc for being in along the circumferential direction 180 ° of central angles.
The alternate polarisation permanent magnet array, permanent magnet are annular permanent magnet, in stator core along the circumferential direction
Evenly distributed, adjacent annular permanent magnet polarity is on the contrary, a pair of of pole of adjacent and opposite polarity two permanent magnet composition, then exists
45 pairs of poles are formed in the segmental arc of 180 ° of central angles.
The permanent-magnetic clamp array material selection Nd-Fe-B permanent magnet or rare earthcobalt permanent magnet of the alternate polarisation.
Three drum type brake rotor modules, wherein along the circumferential direction at a distance of the circle of θ=8 ° between adjacent two rotor module
Heart angle；Three drum type brake rotor modules constitute the unit motor that three are 12 slot, 10 pole with stator.
The drum type brake rotor module, inside circumferentially uniformly fluting, form the 13 of equidistantly distributed
A rotor tooth and 12 rotor slots；Embedded circular armature winding inside rotor slot.
Rotor tooth, rotor back yoke and the stator core material is high permeability material.
The high permeability material is electrical pure iron or silicon steel sheet.
The circular armature winding is using centralized distribution mode；The armature of three drum type brake rotor modules around
Group uses staggered form connection type；The winding connection of each drum type brake rotor module is using double three-phase windings connection types.
Advantageous effect：The design of drum type brake camber line magneto can meet astronomical telescope pitch axis in 180 ° of ranges
Inside rotate freely；The design of electrical motor is cylinder mode, can realize that 360 ° to annular permanent magnet are wrapped up entirely, improve permanent magnetism
The utilization rate of body；Compared to conventional motors, drum type brake camber line magneto of the present invention increases simultaneously without winding overhang
Air gap area has the advantages that high torque density, torque fluctuation are small；The armature winding of three drum type brake rotor modules of the motor
It is all made of the connection type of centralized winding and staggered form, can effectively inhibit the sky caused by three characteristics of the middle term asymmetry problem
M-Acetyl chlorophosphonazo and torque ripple；In order to further realize the redundancy running and tracking accuracy of motor, the electricity of drum type brake rotor module
Double three-phase windings connection types can be used in pivot winding.
Description of the drawings
Fig. 1 is a kind of heavy caliber astronomical telescope drum type brake camber line permanent magnet motor structure schematic diagram；
Wherein have：Rotor portion I, stationary part II；
Fig. 2 is the diagrammatic cross-section of cylindrical shape camber line magneto；Wherein have：Rotor back yoke 1, rotor tooth 2, rotor slot 3,
Circular armature winding 4, stator core 5, staggeredly magnetic pole permanent-magnetic clamp 6；
Fig. 3 is the component part schematic diagram of rotor module；Wherein a is rotor back yoke 1, the structure of rotor tooth 2, rotor slot 3
Schematic diagram, b are the structural schematic diagram of circular armature winding 4；
Fig. 4 is the structural schematic diagram of stationary part；Wherein a is the structural schematic diagram of stator core 5, and b is the magnetic pole that interlocks
The structural schematic diagram of permanent-magnetic clamp 6；
Fig. 5 is the schematic diagram of winding connection.
Wherein have：Armature winding A1, B1, C1, A2, B2, C2, A3, B3, C3, between adjacent two rotor module along the circumferential direction
Central angle θ apart.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings
A kind of heavy caliber astronomical telescope according to the present invention drum type brake camber line magneto, not only may be implemented day
Literary telescope pitch axis rotates freely within the scope of 180 °, meets positioning and the tracking accuracy of astronomical observation, and the motor
Have the characteristics that high torque density, torque pulsation are small.
Referring to Fig. 1-4, a kind of heavy caliber astronomical telescope drum type brake camber line magneto provided by the invention, including turn
Subdivision I and stationary part II this two parts.
Rotor portion I is made of three rotor modules, and rotor module uses cylinder mode, phase between adjacent two rotor module
Central angle away from θ=8 °；Three rotor modules are made of rotor core and circular armature winding 4.
By stator core 5 and staggeredly, the permanent-magnetic clamp array 6 of magnetic pole forms stationary part II.
Stator core 5 is the segmental arc for being in along the circumferential direction 180 ° of central angles, and permanent magnet array uses 6 knot of permanent-magnetic clamp array
Structure, annular permanent magnet along the circumferential direction uniform array in stator core, adjacent permanent magnet polarity is on the contrary, adjacent and polarity is opposite
Two permanent magnets constitute a pair of of pole, 45 pairs of poles are formed on 180 ° of circumference.
Staggeredly 6 material of magnetic pole permanent-magnetic clamp array of 45 pairs of poles uses Nd-Fe-B permanent magnet or rare earthcobalt permanent magnet.
The unit motor of three 10 pole, 12 slots is collectively formed in three drum type brake rotor modules and stator；In drum type brake rotor mould
The inside of block is circumferentially uniformly slotted, and 13 rotor tooths 2 and 12 of rotor back yoke 1 and equidistantly distributed are formed
A rotor slot 3, embedded circular armature winding 4 in each rotor slot.
Rotor back yoke 1, rotor tooth 2,5 material of stator core are high permeability material.Such as：Rotor back yoke 1, is determined rotor tooth 2
5 material of word iron core uses electrical pure iron or silicon steel sheet.
A kind of heavy caliber astronomical telescope drum type brake camber line magneto, in order to effectively inhibit not right by three-phase
Space harmonics and torque fluctuations caused by title problem, the winding connection of the motor are characterized in：Three drum type brake rotors
The armature winding of module is all made of centralized winding, and the winding of three drum type brake rotor modules uses staggered form connection type,
Phase sequence is respectively：The phase sequence of first piece of rotor module is A1-B1-C1, and the phase sequence of second piece of rotor module is B2-C2-A2, third
The phase sequence of block rotor module is C3-A3-B3, and the three-phase windings of three modules can form complete three-phase symmetrical connection (A1-B2-
C3, B1-C2-A3, C1-A2-B3)；Meanwhile in order to realize the redundancy running of motor and be precisely controlled, three rotor modules
Double three-phase windings connection types can be used in armature winding.In summary the winding connection, the winding connection of the motor
Mode is as shown in Figure 5.
Claims (9)
1. a kind of heavy caliber astronomical telescope drum type brake camber line magneto, it is characterised in that：The cylindrical shape camber line Permanent Magnet and Electric
Machine includes rotor portion (I) and the part stator (II), and rotor portion (I) is sleeved on the outside of stationary part (II)；Wherein rotor portions
(I) is divided to be made of three drum type brake rotor modules, each drum type brake rotor module is by drum type brake rotor core and annular shape electricity
Pivot winding (4) is constituted, and in the slot for the inner periphery that circular armature winding (4) is located at drum type brake rotor core, wherein drum type brake turns
Sub- iron core includes rotor back yoke (1), rotor tooth (2), rotor slot (3), and rotor tooth (2) and rotor slot (3) are located at rotor back yoke (1)
Inner hole wall；Alternate polarisation permanent magnet array of the stationary part (II) by stator core (5) and Surface Mount in stator core (5) outside
(6) it constitutes.
2. a kind of heavy caliber astronomical telescope according to claim 1 drum type brake camber line magneto, it is characterised in that
The stator core (5) is the segmental arc for being in along the circumferential direction 180 ° of central angles.
3. a kind of heavy caliber astronomical telescope according to claim 1 drum type brake camber line magneto, it is characterised in that
The alternate polarisation permanent magnet array (6), permanent magnet are annular permanent magnet, in stator core (5) along the circumferential direction
Even arrangement, adjacent annular permanent magnet polarity is on the contrary, adjacent and opposite polarity two permanent magnet constitutes a pair of of pole, then at 180 °
45 pairs of poles are formed in the segmental arc of central angle.
4. a kind of heavy caliber astronomical telescope according to claim 1 drum type brake camber line magneto, it is characterised in that
Permanent-magnetic clamp array (6) the material selection Nd-Fe-B permanent magnet or rare earthcobalt permanent magnet of the alternate polarisation.
5. a kind of heavy caliber astronomical telescope according to claim 1 drum type brake camber line magneto, it is characterised in that
Three drum type brake rotor modules, wherein along the circumferential direction at a distance of the central angle of θ=8 ° between adjacent two rotor module；Three
Drum type brake rotor module constitutes the unit motor that three are 12 slot, 10 pole with stator.
6. a kind of heavy caliber astronomical telescope drum type brake camber line magneto, feature exist according to claim 1 or 5
In the drum type brake rotor module, inside circumferentially uniform fluting, form 13 rotors of equidistantly distributed
Tooth (2) and 12 rotor slots (3)；The internal embedded circular armature winding (4) of rotor slot (3).
7. a kind of heavy caliber astronomical telescope according to claim 1 drum type brake camber line magneto, it is characterised in that
Described rotor tooth (2), rotor back yoke (3) and stator core (5) material is high permeability material.
8. a kind of heavy caliber astronomical telescope according to claim 7 drum type brake camber line magneto, it is characterised in that
The high permeability material is electrical pure iron or silicon steel sheet.
9. a kind of heavy caliber astronomical telescope according to claim 1 drum type brake camber line magneto, it is characterised in that
The circular armature winding (4) is using centralized distribution mode；The armature winding of three drum type brake rotor modules is adopted
With staggered form connection type；The winding connection of each drum type brake rotor module is using double three-phase windings connection types.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810159240.4A CN108400662A (en) | 2018-02-26 | 2018-02-26 | A kind of heavy caliber astronomical telescope drum type brake camber line magneto |
| PCT/CN2018/088137 WO2019161623A1 (en) | 2018-02-26 | 2018-05-24 | Cylindrical arc permanent magnet motor for use in large-caliber astronomical telescope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810159240.4A CN108400662A (en) | 2018-02-26 | 2018-02-26 | A kind of heavy caliber astronomical telescope drum type brake camber line magneto |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108400662A true CN108400662A (en) | 2018-08-14 |
Family
ID=63096826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810159240.4A Pending CN108400662A (en) | 2018-02-26 | 2018-02-26 | A kind of heavy caliber astronomical telescope drum type brake camber line magneto |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108400662A (en) |
| WO (1) | WO2019161623A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06281867A (en) * | 1993-03-26 | 1994-10-07 | Mitsubishi Electric Corp | Rotation driving device |
| CN104716811A (en) * | 2015-02-09 | 2015-06-17 | 北京理工大学 | Switch magnetic flow arc-shaped permanent magnet motor |
| CN104852537A (en) * | 2015-05-28 | 2015-08-19 | 东南大学 | Three-dimensional air gap Halbach permanent magnet arc-shaped motor for astronomical telescope and control method of three-dimensional air gap Halbach permanent magnet arc-shaped motor |
| US20160336825A1 (en) * | 2014-03-12 | 2016-11-17 | National Institute of Technology | Linear motor |
| CN106647511A (en) * | 2016-12-28 | 2017-05-10 | 中国科学院长春光学精密机械与物理研究所 | Telescope control system based on segment arc permanent magnetism synchronous torque motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011252989A (en) * | 2010-06-01 | 2011-12-15 | Kenkotokina Corp | Camera shake correcting device |
| CN103661085B (en) * | 2013-12-16 | 2016-03-02 | 江苏大学 | A kind of automobile front follow-up steering camber line drive system |
-
2018
- 2018-02-26 CN CN201810159240.4A patent/CN108400662A/en active Pending
- 2018-05-24 WO PCT/CN2018/088137 patent/WO2019161623A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06281867A (en) * | 1993-03-26 | 1994-10-07 | Mitsubishi Electric Corp | Rotation driving device |
| US20160336825A1 (en) * | 2014-03-12 | 2016-11-17 | National Institute of Technology | Linear motor |
| CN104716811A (en) * | 2015-02-09 | 2015-06-17 | 北京理工大学 | Switch magnetic flow arc-shaped permanent magnet motor |
| CN104852537A (en) * | 2015-05-28 | 2015-08-19 | 东南大学 | Three-dimensional air gap Halbach permanent magnet arc-shaped motor for astronomical telescope and control method of three-dimensional air gap Halbach permanent magnet arc-shaped motor |
| CN106647511A (en) * | 2016-12-28 | 2017-05-10 | 中国科学院长春光学精密机械与物理研究所 | Telescope control system based on segment arc permanent magnetism synchronous torque motor |
Non-Patent Citations (1)
| Title |
|---|
| 常九健: "基于弧形电机拼接的大型望远镜驱动技术研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》 * |
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| Publication number | Publication date |
|---|---|
| WO2019161623A1 (en) | 2019-08-29 |
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