Fatigue test system for brake head transverse moving type tread foundation braking device

The application discloses a fatigue test system for a brake head transverse moving type tread foundation braking device. The fatigue test system comprises a base, a tread profiling part, a position regulation mechanism and a supporting mechanism; the tread profiling part is provided with a frictional contact surface for simulating a wheel pair tread; the position regulation mechanism is connectedwith the tread profiling part; the position regulation mechanism comprises a fixed seat, a first linear guide rail, a first moving part, a first screw and a servo motor; the first linear guide rail isformed along a transverse moving direction of the frictional contact surface; the first moving part is in matched connection with the first linear guide rail and is fixedly connected with the tread profiling part; the first screw is connected with the first moving part; the servo motor is connected with the first screw; the supporting mechanism comprises a mounting base; and arrangement of the mounting base adapts to the