The invention relates to a vacuum friction abrasion test device, which comprise a base, wherein a vacuum cover is arranged on the base, a vacuum meter and an inflating valve are arranged on the vacuum cover, a driving motor is arranged in the base, the upper end of a driving shaft of the driving motor is provided with a movable specimen disc, a
fixed specimen is arranged above the movable specimen disc in a contact way and is fixed by a
fixed specimen clamp, the
fixed specimen clamp is arranged on a U-shaped
cantilever beam, a loading weight is placed above the fixed specimen clamp, one end of the U-shaped
cantilever beam is provided with a balance weight,
linear displacement sensors are symmetrically arranged on the U-shaped
cantilever beam, a radial feeding
system is fixedly arranged on the base, a regulation rotating shaft is arranged above the radial feeding
system, and the U-shaped cantilever beam is connected with the regulation rotating shaft through a connecting element. The vacuum friction abrasion test device has the advantages that according to experiment requirements, the data collection and recording of parameters such as
friction force and time can be realized in vacuum environment, in addition, curves of the
friction coefficient changed along with the time are drawn, the operation of the device is simple, and the use is convenient.