Testing device for axle box bearing of metro vehicle

The utility model relates to the technical field of bearing test, in particular to a subway vehicle axle box bearing test device which comprises a base, a fixing plate is fixedly connected to the left portion of the upper end of the base, a sliding groove is formed in the right portion of the upper end of the base, a rotating motor is fixedly connected to the right end of the fixing plate, and an adjusting assembly is slidably connected into the sliding groove. And the output end of the rotating motor and the left end of the adjusting assembly are fixedly connected with fixing assemblies, the two fixing assemblies are symmetrically distributed left and right, the outer surfaces of the two fixing assemblies are sleeved with connecting assemblies, and the right end of the base is in threaded connection with a first screw rod. According to the test device for the axle box bearing of the metro vehicle, the left part and the right part of the bearing are clamped and fixed by arranging the fixing assembly, and the