Railway wheel set feeding mechanism

The utility model relates to the field of railway vehicle detection, in particular to a railway wheel set feeding mechanism which comprises a machine tool bottom plate, a rotary supporting seat, a lifting platform, a preparation platform and a rolling-out platform, the preparation platform and the rolling-out platform are both provided with railway tracks, and thin tracks are installed on the two sides of the lifting platform. The side faces of the two thin rails are respectively provided with a front swing arm mechanism, a rear swing arm mechanism and a positioning mechanism, continuous rolling-in and rolling-out of feeding and discharging of a wheel set are achieved through the lifting platform, the front swing arm mechanisms and the rear swing arm mechanisms can achieve the functions of coarse positioning and thrust providing, and the positioning mechanisms achieve final regulation and control of the position of the wheel set. After descending, the lifting platform can accurately fall on the rotary support