Friction experiment device suitable for low-temperature vacuum condition

Abstract

The invention discloses a friction experiment device suitable for a low temperature vacuum condition. The device comprises a driving device, a loading device, a transmission device, a second heat insulation coupling, a temperature-controllable vacuum box, a normal temperature box and a test piece. The normal temperature box is arranged in the temperature-controllable vacuum box, and the test piece and the transmission device are arranged in the temperature-controllable vacuum box. The loading device is connected with the loading input end of the test piece through the transmission device; and the driving device is connected with the driving end of the test piece through the second heat insulation coupling. According to the invention, a servo motor can be arranged in the normal-temperature box formed by fixing the normal-temperature box and a normal-temperature box end cover through screws so that the large-torque and high-rotating-speed test requirements can be met, and driving and loading outside a vacuum tank are not needed; and when the test is completed, a special vacuum tank does not need to be customized, only the mounting platform needs to be put down, the length of a transmission chain is greatly shortened, and the coaxiality is easy to guarantee.

Description

technical field [0001] The invention relates to the field of friction and slip testing under low-temperature vacuum conditions, and more specifically relates to a friction test device suitable for low-temperature vacuum conditions. Background technique [0002] There is a brake applicable to the aerospace field, and the purpose of the device is to decelerate the rotating shaft until it stops rotating. The main working environment of this type of brake is a low-temperature vacuum environment. Its main principle is: use the friction pair in the brake to generate and prevent the torque of the rotating shaft, so that the target shaft decelerates until it stops rotating. In order to study the performance, life and other characteristics of the brake under different working conditions, different environments, and different steering directions, it is necessary to carry out corresponding simulation tests on the ground. [0003] In order to complete the ground simulation test of the ...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the vacuum motor of the existing ground vacuum driving and loading equipment cannot meet the speed, torque and working temperature required by the experiment, and proposes a short transmission chain, high coaxiality, small required space, and good realization A friction experiment device suitable for low temperature and vacuum conditions with heat insulation and fast loading speed

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