Non-contact air supply device of air flotation physical simulation platform with closed air film seal

Abstract

The invention discloses a non-contact gas supply device of a closed gas film sealed gas floatation physical simulation platform. A gas guide unit composed of a gas guide block and a gas guide hole isarranged in the center of a translational motion platform of the gas floatation physical simulation platform, a gas supply unit composed of a gas supply block and a gas supply hole is arranged on a foundation platform, a closed gas floatation unit composed of gas sealing rings, a closed gas film sealing gas supply channel and gas sealing plugs is arranged on the gas supply block, and in the gas supply process of the gas floatation physical simulation platform, gas film sealing is achieved through an ultrathin gas film between the closed gas floatation unit in the fixed gas supply unit and themovable gas guide unit. The gas floatation physical simulation platform ceaselessly supplies gas outwards, the influence of gas pipe disturbance and additional bearing force is eliminated through non-contact gas film sealing between the gas floatation physical simulation platform and an external gas supply channel, and the non-contact gas supply device has the beneficial effects of being long in experiment time, small in simulation environment disturbance moment, reliable in sealing, high in vertical stiffness and the like.

Description

technical field [0001] The invention belongs to the field of spacecraft physical simulation, and mainly relates to a non-contact air supply device of a closed air-film-sealed air-floating physical simulation platform. Background technique [0002] With the rapid development of aerospace technology, the use of spacecraft continues to increase, and the requirements for rapid maneuverability, attitude stability and reliability of spacecraft are increasing. In order to verify and ensure the on-orbit motion performance of the spacecraft, it is particularly important to conduct ground simulation experiments that simulate the space environment of weightlessness and micro-disturbance torque. [0003] At present, the structure forms of the spacecraft ground simulation platform include screw guide rail contact type, air levitation non-contact type and magnetic levitation non-contact type. The friction torque of the screw guide simulation platform is large, and it is difficult to meet...

AI Technical Summary

Problems solved by technology

However, the gas supply method through the gas cylinder will bring problems such as limited experiment time and the quality of the moving platform changes with time. For the gas supply method to the air flotation platform through the external gas pipe, it will also bring the traction effect of the gas supply gas pipe and the high disturbance torque

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