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Solenoid drive type angular vibration table

A technology of angular vibrating table and electromagnetic drive, which is applied in the direction of instruments, etc., can solve the problems of large output waveform distortion, achieve the effect of no friction friction, simplify winding process, and reliable operation

Active Publication Date: 2014-12-03
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the existing motor-driven angular vibrating table with large output waveform distortion, the present invention provides an electromagnetically driven angular vibrating table with low output waveform distortion

Method used

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  • Solenoid drive type angular vibration table
  • Solenoid drive type angular vibration table
  • Solenoid drive type angular vibration table

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 As shown, an electromagnetically driven angular vibrating table includes a shell, a worktable B-1, a spindle B-2 that drives the worktable B-1 to rotate, a moving coil assembly, a magnetic circuit assembly, an electroviscoelastic feedback control assembly, an air Bearings and angular displacement sensors;

[0044] The main shaft B-2 is fixedly connected with the moving coil assembly, and the moving coil assembly includes the moving coil base B-3 connected with the main shaft B-2 and the coil B-4 wound on the moving coil base B-3, and the moving coil base B-3 Fixed connection with main shaft B-2;

[0045] Such as figure 2 As shown, the magnetic circuit assembly includes the magnetic ring E-1, the central magnetic pole E-2 and the magnetic steel E-3, and is formed by the magnetic conductive ring E-1, the central magnetic pole E-2, the magnetic steel E-3 and the air gap. Closed magnetic circuit; the central magnetic pole E-2 is located in the magnetic ...

Embodiment 2

[0055] The difference between this embodiment and the first embodiment lies in the specific structure of the air bearing, and the structure of other components except the air bearing is the same as that of the first embodiment.

[0056] Specifically: if Figure 4 As shown, the air bearing includes bearing seat C-1 and bearing body C-2, the main shaft B-2 is socketed in the bearing body C-2, the bearing body C-2 is socketed in the bearing seat C-1, and the bearing seat C -1 is fixed with the bearing body C-2, and the bottom of the main shaft B-2 is provided with a step matching with the bearing body C-2;

[0057] The outer surface of the bearing body C-2 is provided with a circular air intake groove C-21, and the bearing seat C-1 is provided with an air intake hole C-11 communicating with the air intake groove C-21, and the bearing body C -2 is provided with the radial air guide hole between the bearing body C-2 and the main shaft B-2, which guides the gas to the upper axial a...

Embodiment 3

[0068] The difference between this embodiment and Embodiment 1 lies in the coil of the moving coil assembly, and the structure of other components except the coil is the same as that of Embodiment 1.

[0069] Such as Figure 5 As shown, the coil B-4 of the moving coil assembly covers the outer surface of the moving coil base B-3. Such as Image 6 As shown, the coil includes a coil winding B-4-1 and an insulating layer B-4-3, the coil winding B-4-1 and the insulating layer B-4-3 are arranged at intervals, and the coil winding B-4-1 has at least one layer , the insulating layer B-4-3 is made of epoxy resin glue and glass cloth, and the insulating layer completely covers the coil winding B-4-1 inside. Such as Figure 7 As shown, the coil winding includes the first coil B-4-1-1 and the second coil B-4-1-2, the first coil B-4-1-1 is wound counterclockwise from inside to outside, the second coil B -4-1-2 Winding clockwise from outside to inside, the first coil B-4-1-1 and the seco...

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Abstract

A solenoid drive type angular vibration table comprises a shell, a working table top, a main shaft driving the working table top to rotate, a moving coil assembly, a magnetic circuit assembly, an electro-viscous elastic feedback control assembly, an air bearing and an angular displacement sensor, wherein the main shaft is fixedly connected with the moving coil assembly, the moving coil assembly comprises a moving coil matrix and a coil, the moving coil matrix is fixed to the main shaft, the magnetic circuit assembly comprises a magnetism conduction ring, a central magnetic pole and magnetic steel, a close magnetic loop is formed by the magnetism conduction ring, the central magnetic pole, the magnetic steel and an air gap, the central magnetic pole is located in the magnetism conduction ring, the magnetism conduction ring is coaxial with the central magnetic pole, the magnetic steel is located between the magnetism conduction ring and the central magnetic pole, the magnetic steel is attracted to the central magnetic pole, the moving coil assembly is located between the magnetic steel and the magnetism conduction ring, the moving coil assembly is coaxial with the magnetism conduction ring, the magnetic circuit assembly is fixed to a magnetic circuit supporting part, the magnetic circuit supporting part is fixed to a base, an annular groove is formed in the magnetic circuit supporting part, the moving coil assembly stretches into the annular groove, and a gap exists between the moving coil assembly and the groove wall of the annular groove. The solenoid drive type angular vibration table has the advantage of being low in degree of output wave form distorsion.

Description

technical field [0001] The invention relates to an electromagnetic-driven angular vibrating table, in particular to an electromagnetic-driven angular vibrating table used for calibrating an angular vibration sensor. technical background [0002] The angular vibration table is not only widely used to calibrate the dynamic characteristics of various angular vibration (angular displacement, angular velocity, angular acceleration) sensors, but also to conduct angular vibration environmental tests on various products. [0003] At present, the angular vibration table generally adopts the structure based on motor drive. Jun Peng, Qun He, Jingfeng Xue and Hao Sun published a paper titled Low Frequency Standard Angle Shaker in the Journal of Measurement Technology, Volume 25, Issue 6, 2005. The low-frequency angular vibration table is mainly composed of a mechanical system, a control system, a measurement system and a signal processing system. The mechanical system mainly consists ...

Claims

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Application Information

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IPC IPC(8): G01D18/00
Inventor 何闻唐波贾叔仕周杰
Owner ZHEJIANG UNIV
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