High-precise uniaxial magnetic-levitation revolving table

A magnetic levitation, high-precision technology, applied in the direction of torque measurement, power measurement, measuring devices, etc., can solve the problems of large mechanical friction torque, low control precision, large vibration noise, etc., to eliminate friction torque, improve control accuracy, improve reliability effect

Inactive Publication Date: 2006-11-22
BEIHANG UNIV
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  • Abstract
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Problems solved by technology

At present, the turntable is generally supported by air static pressure bearings and mechanical bearings. Since the structural design of the air static pressure bearings is very complicated, the processing and manufacturing precision requirements are very high, and a set of air source devices (including air compressors, air storage tanks, Dryer, filter, etc.), which leads to the need for professionals t

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  • High-precise uniaxial magnetic-levitation revolving table
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  • High-precise uniaxial magnetic-levitation revolving table

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[0017] Such as figure 1 As shown, the present invention is mainly composed of torque motor 1, lower protective bearing 2, lower radial / axial integrated displacement sensor 3, lower radial magnetic bearing 4, lower base 5, lower axial magnetic bearing 6, mandrel 7, The upper axial magnetic suspension bearing 8, the upper radial magnetic suspension bearing 9, the upper radial / axial integrated displacement sensor 10, the upper base 11, the upper protective bearing 12, the angular position encoder 13 and the working table 14. Among them, the rotor part of the torque motor 1, the rotor part of the lower radial magnetic bearing 4, the rotor part of the lower axial magnetic bearing 6, the core shaft 7, the rotor part of the upper axial magnetic bearing 8, and the rotor of the upper radial magnetic bearing 9 The part, the rotating part of the angular position encoder 13 and the worktable 14 are the rotating parts, and the rest are the stationary parts. The stator and the rotor realize th...

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Abstract

The related high-precise single-axis magnetic levitation turntable comprises: a moment motor, a lower protective bearing, a lower/upper radial/axial integrated displacement sensor, a lower/upper radial magnetic levitation, an angular position coder, and a work platform. Wherein, it uses radial/axial magnetic levitation bearing to realize non-mechanical contact stable suspension between stator and rotator. This invention reduces friction moment and total volume greatly, and improves control precision and system security.

Description

Technical field [0001] The invention relates to a high-precision single-axis magnetic levitation turntable, which can be used for dynamic simulation of spacecraft and high-precision testing of the performance of components such as spacecraft actuators, and can also be used for calibration of inertial navigation systems and establishment of corresponding error models. Background technique [0002] Both the spacecraft dynamics simulation turntable and the spacecraft actuator test turntable (hereinafter collectively referred to as the turntable) are high-precision equipment, requiring small frictional torque and high test accuracy. Its simulation and test accuracy directly affect the control accuracy and stability of the spacecraft's actuators on the attitude of the spacecraft. At present, the turntable is generally supported by air static pressure bearings and mechanical bearings. Since the structural design of the air static pressure bearings is very complicated, the processi...

Claims

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Application Information

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IPC IPC(8): G01M99/00G01L3/00
Inventor 房建成韩邦成刘成良刘刚孙津济陶建峰樊亚洪
Owner BEIHANG UNIV
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