Power generation device, rail vehicle and power supply method of wagon monitoring assembly

The invention discloses a power generation device, a rail vehicle and a power supply method of a wagon monitoring assembly. The power generation device comprises a rotating part (1), a gear set, a rotor winding and a stator winding; the stator winding is fixedly arranged and is electrically connected with the monitoring assembly; the rotor winding is mounted in the stator winding and can rotate relative to the stator winding; and the rotating part (1) is connected with the rotor winding through the gear set to drive the rotor winding to rotate. The power generation device can convert mechanical energy generated by rotation of the gear set into electric energy and provide the electric energy for a vibration sensing and monitoring assembly of a bogie; and the problem that a railway wagon does not have power supply equipment in the prior art is solved. 本发明公开了一种发电装置、轨道车辆及货车监测组件的供电方法，所述发电装置包括转动件(1)、齿轮组、转子绕组以及定子绕组；所述定子绕组固定设置并与所述监测组件电连接；所述转子绕组安装在所述定子绕组内并能够相对于所述定子绕组转动；所述转动件(1)通过所述齿轮组与所述转子绕组连接以驱动所述转子绕组转动。本发明的发电装置能够将轮对