The invention discloses a micro-movement friction and abrasion testing
machine. The micro-movement friction and abrasion testing
machine is that two symmetrically arranged electric vibration exciters are adopted and used as excitation sources for generating micro-movement friction between friction pairs; a loading device is adopted and used for applying
positive pressure to the friction pairs; a
force sensor is adopted and used for collecting a
positive pressure signal; a
computer data processing device is arranged and produces a closed-loop
feedback control together with the acquired
positive pressure signal, and the load applied by the loading device is kept constant. In addition, the
computer data processing device is used for recording and analyzing the positive pressure
signal acquired by the sensor, a micro-movement
friction force signal, and a displacement signal, acquired by a displacement sensor, of each electric
vibration exciter and then are automatically outputting the signals to generate abrasion performances for a sample A and a sample B of the friction pairs; and therefore, the micro-movement friction and abrasion testing
machine has the characteristics of being adjustable in vibration
excitation amplitude, variable in vibration mode, convenient to operate and move, high in loading precision, and reproducible in project
service condition, the experimental data is high in
repeatability and can be used for evaluating the micro-movement friction and abrasion performance of a material.