Non-magnetic rotary table used for measuring magnetic moment of satellite

Abstract

The invention relates to a non-magnetic rotary table used for measuring the magnetic moment of a satellite in a low-magnetic environment magnetic field. The non-magnetic rotary table comprises a trolley used for moving equipment, universal wheels mounted on the bottom face of the trolley, a sitting type rolling bearing arranged at the center of the upper surface of the trolley, a revolving platform arranged above the sitting type rolling bearing and a support mounted on the upper surface of the revolving platform. A bevel gear is arranged between the sitting type rolling bearing and the revolving platform and connected to a rotation measurement transmission mechanism. A transposition transmission mechanism used for transposition transmission is arranged on the support. The transposition transmission mechanism is connected to a transposition hand wheel. A fixture used for fixing and tightly clamping the satellite is arranged on the support. The non-magnetic rotary table used for measuring the magnetic moment of the satellite is reasonable in technology, convenient to operate and low in manufacturing cost; the sitting type rolling bearing and a limiting device are used, so that the non-magnetic rotary table is high in design stability coefficient and ensures the safety of the satellite at the time of horizontal movement, transposition and rotation; a positioning device is used for guaranteeing the accuracy of the position of measuring points, and the non-magnetic rotary table can be applied to magnetic moment measurement for various satellites.

Description

technical field [0001] The invention relates to a non-magnetic turntable, in particular to a non-magnetic turntable for measuring the magnetic moment of a satellite in a low magnetic environment magnetic field. Background technique [0002] A non-magnetic turntable for measuring the magnetic moment of satellites in the magnetic field of a low magnetic environment. It is used to detect and analyze the magnetic properties of satellites in a controllable magnetic field environment on the ground, and to control the magnitude and direction of the magnetic field vector to obtain accurate magnetic measurements. Characterization data to validate and improve satellite magnetic designs. [0003] There are various types of non-magnetic turntables for loading satellites in the magnetic field of low-magnetic environments to measure their magnetic moments. There is a hydraulic (or pneumatic) non-magnetic turntable, which is a non-magnetic bearing plus a turbine around the rotation shaft. ...

AI Technical Summary

Problems solved by technology

[0003] There are various types of non-magnetic turntables for loading satellites in the magnetic field of low-magnetic environments to measure their magnetic moments. There is a hydraulic (or pneumatic) non-magnetic turntable, which is a non-magnetic bearing plus a turbine around the rotation shaft. The worm rod method is hydraulic (or pneumatic) around the vertical axis. It is made of bronze, copper, high-purity aluminum, tetrafluoroethylene and non-magnetic stainless steel. It can rotate 360° around the vertical axis and is easy to move, but the magnetism and temperature The humidity is difficult to control and difficult to maintain. The hydraulic (or air pressure) type will have a certain impact on the environment and the cost is high; another kind of mechanical non-magnetic turntable, this kind of turntable is a non-magnetic bearing plus a worm gear around the rotation axis. The roller device around the vertical axis is made of bronze, copper, high-purity aluminum and non-magnetic stainless steel. The magnetism is easy to control, the temperature and humidity are controllable, it does not pollute the environment, the cost is low, and it is easy to maintain. °The driving force of the rotation is difficult to control, the vertical axial bearing capacity and the strength of the roller shaft are high, and the control is difficult

[0004] The German IABG Space Test Center adopts a more advanced sitting rolling rotary platform, but due to the use of nylon balls, it can only bear one ton of test pieces

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