Two-box movable type cold and hot impact testing machine

Abstract

The invention discloses a two-box movable type cold and hot impact testing machine, which belongs to the technical field of impact testing machines, and is characterized in that the two-box movable type cold and hot impact testing machine comprises a testing machine box, the inner wall of the testing machine box is slidably connected with a testing basket, the top of the testing basket is providedwith a steel wire rope, and the inner wall of the testing machine box is provided with a high-temperature chamber and a low-temperature chamber; a through plate is fixedly connected to the inner wallof the testing machine box, an opening matched with the test basket is formed in the top of the through plate, and the size of the high-temperature chamber is the same as that of the low-temperaturechamber, a valve groove is formed, and when the test basket continuously moves upwards into the high-temperature chamber from the interior of the low-temperature chamber under the action of an electric air cylinder, the air plug arranged on the surface of the steel wire rope in a sleeving mode makes contact with the valve groove and is clamped into the valve groove, and the sealing effect of the valve groove is achieved through the two backing rings arranged on the surface of the air plug. The influence of poor chamber sealing effect on the test result when the test basket moves up and down isavoided.

Description

technical field [0001] The invention relates to the technical field of impact testing machines, and more specifically relates to a two-box mobile cold and heat impact testing machine. Background technique [0002] The thermal shock testing machine is an energy storage type thermal shock test chamber. The main test products are used for testing current electronic components. The thermal shock testing machine can simulate the instantaneous change environment between high temperature and low temperature. In order to judge whether the parameters such as product reliability and stability are qualified. [0003] At present, most of the heat in the two-box thermal shock test chamber is to neutralize the cold air in the refrigeration device and the hot air in the heating device to cool down. Every time a thermal shock test is performed, the air needs to be refrigerated and conditioned again. Heat, when the thermal shock test is carried out on the items placed inside the test basket...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the heat in the two-box thermal shock test chamber is to neutralize the cold air in the refrigeration device and the hot air in the heating device to cool down. Every time a thermal shock test is performed, the air needs to be refrigerated and conditioned again. Heat, when the thermal shock test is carried out on the items placed inside the test basket, the sealing effect between the high temperature chamber and the low temperature chamber is not good, and it is easy to increase the power consumption of the testing machine. Therefore, those skilled in the art provide a A kind of two boxes mobile cold and heat shock testing machine, to solve the problem proposed in the above-mentioned background technology

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