Test device for actuator low-temperature environment, low-temperature medium test

Abstract

The invention belongs to the low-temperature environment accelerated life test technology, and discloses a test device for an actuator low-temperature environment, low-temperature medium test. The test device includes a test piece actuator [1], a left oil storage bag assembly [3], a three-position four-way solenoid valve [4], a left hydraulic cylinder [5], a right hydraulic cylinder [6], and a right oil storage bag assembly [8]. According to the invention, the test piece actuator is provided with a bidirectional continuous high-pressure low-temperature medium by placing main components in a low-temperature environment tank for a life test of the low-temperature environment low-temperature medium of the tested actuator. The heat exchange between the left hydraulic cylinder, right hydrauliccylinder, test piece and low-temperature medium and the normal temperature environment can be reduced. At the same time, the heat exchange area between the low-temperature medium and the environment cold air is increased, and the temperature of the low-temperature medium is not increased. The safety of the test process is improved, an operator can perform remote control to realize an automatic cycle test, the consumption of the low-temperature medium can also be effectively reduced, and the advantages of saving energy and the like are gained. The equipment implementation principle is simple, the cost is low and the implementation is easy.

Description

technical field [0001] The invention belongs to the low-temperature environment accelerated life test technology, in particular to a test device for the low-temperature environment and low-temperature medium test of an actuator. Background technique [0002] The low-temperature environment and low-temperature medium test of the actuator is an important part of the factory test and type test, and it is to test the operation of the actuator in an extremely cold environment (working environment -55°C±5°C, working medium -55~-30°C) An important test method for starting performance and life indicators. The current low-temperature environment low-temperature medium test equipment requires a high degree of operator participation, low automation, high consumption of low-temperature medium such as liquid nitrogen, and the risk of frostbite to the operator. Contents of the invention [0003] The purpose of the present invention is to provide a low-temperature environment and low-te...

AI Technical Summary

Problems solved by technology

The current low-temperature environment low-temperature medium test equipment requires a high degree of operator participation, low degree of automation, large consumption of low-temperature medium such as liquid nitrogen, and the risk of frostbite to the operator

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