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Ultra-low speed unit type splicing disc type magnetic levitation torque motor

A torque motor and unitized technology, which is applied in the field of magnetic levitation rotating devices, can solve the problems of occupying a considerable space and complex structure, and achieve the effects of low maintenance cost, improved control accuracy and strong bearing capacity

Inactive Publication Date: 2020-01-21
NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional magnetic bearing system generally uses two radial electromagnetic bearings and one axial electromagnetic bearing to control the five degrees of freedom of the rotating shaft, which occupies a considerable space and has a complex structure

Method used

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  • Ultra-low speed unit type splicing disc type magnetic levitation torque motor
  • Ultra-low speed unit type splicing disc type magnetic levitation torque motor
  • Ultra-low speed unit type splicing disc type magnetic levitation torque motor

Examples

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Embodiment Construction

[0035] Components that correspond to each other or have the same function are identified with the same symbols in all figures.

[0036] like Figure 1-Figure 5 As shown, the unit type spliced ​​disc type direct drive motor and its magnetic suspension rotating shaft of the present invention are mainly composed of base 1, unit type spliced ​​disc type direct drive motor 5, 8, tapered active magnetic suspension bearing 2, 6, radial protection bearing 9, 10, the axial protection bearing 3, 7, the rotating shaft 5, the axial conical active magnetic suspension bearing sensor 11, the axial conical active magnetic suspension bearing sensor 12, and the angular displacement sensor 13. The load is installed on the rotating shaft 4 and initialized before work. The tapered active magnetic suspension bearings 2 and 6 are initialized, and the control current is initialized according to the positions calibrated by the axial and radial tapered active magnetic suspension bearing sensors 11 and ...

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Abstract

An ultralow-speed unitary spliced-disc maglev torque motor comprises a base and a pair of unitary spliced-disc direct-drive motors and is characterized in that a center rotator in rotational symmetryand a pair of conical active biased maglev bearings that restrain axial and radial motion of the center rotator are provided, and maglev supporting is provided for a rotary shaft; a pair of radial protection bearings, a pair of axial protection bearings and a position feedback system are also provided correspondingly; on this basis, the unitary spliced-disc direct-drive motors drive the center rotator in redundant or synchronous manner. The direct-drive motor, the maglev bearings, the axial and radial protection bearings and a feedback and braking system are integrated, the structure is simpleand compact, the integrity is high, space utilization is increased, machining cost and power electronic component cost can be effectively reduced, and product competitiveness is greatly improved.

Description

technical field [0001] The invention relates to a magnetic levitation rotating device driven by a unit type spliced ​​disc torque motor, in particular to an ultra-low speed unit spliced ​​disc type magnetic levitation torque motor, which integrates conical active bias magnetic levitation bearings and is designed for high precision magnetic levitation rotation axis. It can be used in the tracking spindle of astronomical instruments, and can also be used in radar tracking, aerospace measurement and control simulation platforms and other fields. The present invention is the research achievement of the following projects: National Natural Science Foundation General Project (Project No.: 11573046, 11273039), Chinese Academy of Sciences Astronomy Special Project (C-113). Background technique [0002] Large-scale astronomical instruments and spacecraft measurement and control simulation platforms are all high-precision equipment, requiring small frictional torque, high rigidity of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K26/00H02K7/09H02K1/27H02K11/21
CPCH02K1/2753H02K7/09H02K11/21H02K26/00H02K2213/03
Inventor 任长志徐进肖增华乐中宇叶宇
Owner NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE
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