Magnetic test rotary table for satellite residual magnetism test

Abstract

The invention discloses a magnetic test rotary table for satellite residual magnetism test, which comprises a mounting base, a rotary table is arranged above the mounting base, the lower end of the rotary table extends into an inner cavity of the mounting base, a boss and a lower bearing ring are arranged on the bottom surface of the inner cavity of the mounting base, the boss is located in the center of the bottom surface of the inner cavity of the mounting base, and the lower bearing ring is located in the center of the inner cavity of the mounting base. The lower bearing ring is arranged around the boss, an upper bearing ring is arranged in an inner cavity of the mounting base, a plurality of balls are arranged on the upper surface of the lower bearing ring, a retainer for limiting the balls from falling off is further arranged on the upper surface of the lower bearing ring, and the lower surface of the upper bearing ring is pressed on the balls. A drum bead positioning shaft structure is mounted in an inner cavity of the mounting base, the worm wheel is sleeved on the drum bead positioning shaft structure, and a worm system is arranged on the mounting base. The device has the beneficial effects of being simple in structure, convenient to install and good in stability.

Description

technical field [0001] The invention relates to the technical field of satellite remanence testing, in particular to a magnetic testing turntable for satellite remanence testing. Background technique [0002] After the satellite is installed, the residual magnetism test needs to be carried out. Since the satellite is composed of many parts, components, structural parts and connecting lines, and these parts and structural parts are made of various materials, after the assembly is completed, There is a certain amount of remanence. The magnetic bar in the satellite is the executive device in the attitude control system. The magnetic strength is a fixed value, but the magnetic strength of other components and structural parts is unknown, so the remanence value of the satellite must be measured after the satellite is assembled. [0003] Due to the relatively large size of the satellite, a rotatable turntable is required to measure its remanence, and the materials of the existing...

AI Technical Summary

Problems solved by technology

[0003] Due to the relatively large volume of the satellite, a rotatable turntable is required to measure its residual magnetism, and the existing turntables are made of materials with strong magnetism, and the existing turntables have poor bearing capacity of axial parts when carrying satellites. The problem of radial runout of the center hole of the turntable is also serious. In order to accurately measure the residual magnetism of the satellite, it is necessary to design a non-magnetic (very low magnetic content) and stable and reliable turntable.

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