A test method for outboard maintenance tools

Abstract

An outboard maintenance tool testing method comprises the following steps that 1, a pair of outboard space suit gloves is installed on a vacuum tank flange; 2, a simulated maintenance device sample is installed, and a maintenance interface of the simulated maintenance device sample is flexibly connected; 3, an outboard maintenance tool to be tested is put in a vacuum tank and is flexibly connected with the top of the vacuum tank; 4, a servo mechanism is controlled to move, and the simulated maintenance device sample is prevented from damaging the outboard space suit gloves in the pressure extraction process; 5, a cabin door of the vacuum tank is closed, and differential pressure simulation is performed; 6, the relative positions of the simulated maintenance device sample and the outboard space suit gloves are adjusted; 7, the maintenance interface is operated and experimented. The maintenance tool and the maintenance interface can be flexibly connected into the vacuum tank and are prevented from slipping off and damaging a testing device in the maintenance operation process, meanwhile the internal-external pressure difference of the vacuum tank and the relative positions of the maintenance device and a tester can be simulated, and the method supports ground testing of outboard maintenance tools of manned spacecrafts.

Description

Technical field [0001] The invention specifically relates to a test method for an extravehicular maintenance tool, which is suitable for the ground test of an extravehicular maintenance tool of a manned spacecraft, and belongs to the field of manned spacecraft. Background technique [0002] On-orbit maintenance is a necessary means to extend the life of manned spacecraft and ensure the reliability and safety, and it is also one of the most difficult tasks in orbit activities. Russia's Mir space station has performed 74 out-of-vehicle maintenance tasks during its orbital operation. As of 2016, the International Space Station has completed 384 out-of-vehicle maintenance activities. my country is developing the Tiangong space station with a design life of more than 10 years. The first large manned spacecraft to fly in orbit for a long time. [0003] During extravehicular maintenance, astronauts wear extravehicular space suits. The pressure difference between the inside and outside of ...

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is: to provide a test method for maintenance tools outside the cabin, by adding spacesuit gloves with elbows on the vacuum tank with flange interface, and fixing the maintenance products in the four degrees of freedom in the vacuum tank On the servo mechanism, carry out the external maintenance tool test, solve the problem that the normal pressure test and the glove box test cannot combine the maintenance product and simulate the pressure difference between the inside and outside of the spacesuit glove, and carry out the external maintenance tool disassembly, installation and operation test

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