The invention relates to
friction test machines, in particular to a high-speed multi-
station piston ring-cylinder liner sliding pair
friction test machine. The problems that the test process of a traditional
friction test machine is slow, the mutual-affected frictional wear state among
piston cavities cannot be tested, and the traditional friction test
machine is not suitable for high-speed occasions are solved. The high-speed multi-
station piston ring-cylinder liner sliding pair friction test machine includes a first box-shaped machine frame, a second box-shaped machine frame, a third box-shaped machine frame, a
crank connecting rod mechanism, a variable frequency motor, N loading screws, N pressure sensors, N compression springs, N
wireless passive strain sensors and N
wireless passive inclination sensors, wherein N is a positive integer, and N is more than or equal to 2; an output shaft of the variable frequency motor is connected to the free end of a
crank of the
crank connecting rod mechanism; the N loading screws penetrate through N screw holes one to one; and the N pressure sensors are fixed to the lower ends of the N loading screws one to one. The high-speed multi-
station piston ring-cylinder liner sliding pair friction test machine is suitable for a friction test of a
piston ring-cylinder liner sliding pair.