A heavy-duty multi-condition friction testing machine

Abstract

The invention discloses a heavy-duty multi-working-condition friction testing machine. The heavy-duty multi-working-condition friction testing machine comprises a testing platform, a pressure sensor, a lower fixed testing block, a sliding testing block, an upper fixed testing block, a spiral pressurizing device, a constant pulling force device and a data processing terminal, wherein the lower fixed testing block is arranged at the top of the pressure sensor; the pressure sensor is fixed on the testing platform; the sliding testing block is arranged on the upper surface of the lower fixed testing block; the upper fixed testing block is arranged above the sliding testing block; the spiral pressurizing device is arranged on the upper fixed testing block, and is used for pressurizing the upper fixed testing block, and real-time pressure is displayed through the pressure sensor; the sliding testing block is connected with the constant pulling force device through a steel wire rope; the constant pulling force device is used for providing a constant pulling force to the sliding testing block through the steel wire rope; pulling force data of the constant pulling force device and pressure data measured by the pressure sensor are imported into the data processing terminal through a data line. The heavy-duty multi-working-condition friction testing machine disclosed by the invention can be adaptive to different loads and can be used for carrying out friction tests under a plurality of working conditions, and measured results are stable and reliable.

Description

technical field [0001] The invention relates to the field of friction testing, in particular to a heavy-duty multi-working-condition friction testing machine. Background technique [0002] In the prior art, the working load of the friction coefficient testing machine is small, usually the test load is less than 0.1MPa; it is generally used to test the surface friction coefficient of paper, rubber, wood, etc.; it needs to work in a certain environment, and cannot reflect the impact of environmental conditions on the friction coefficient Impact. Design an experimental instrument for testing the friction coefficient of friction pairs under heavy load conditions. The requirements are: (1) the test load can be adjusted, and the maximum can reach 20MPa; Friction coefficient including oil, etc.; (3) can change the test environment working conditions (environment temperature: -10 ℃ ~ 60 ℃; humidity: 0 ~ 100%); (4) test error is less than 0.5%. At present, the mainstream friction c...

AI Technical Summary

Problems solved by technology

Due to the influence of the load on the surface contact state of the friction pair, it is difficult for the existing friction coefficient testing machine to accurately measure the friction coefficient of the friction pair under large loads

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