Motor lubricating oil self-circulation mechanism

The utility model relates to the technical field of motors, in particular to a motor lubricating oil self-circulation mechanism, which comprises a motor shaft, a planetary gear set, an end cover and a motor hub, the planetary gear set is rotatably connected onto the motor shaft, the end cover is rotatably connected onto the motor shaft, the motor hub is fixedly sleeved on a gear ring of the planetary gear set, and the motor hub is fixedly connected with the outer circle part of the end cover. The planetary gear set is wrapped by the sealing ring; a first annular groove is formed in the inner end wall of the outer circle part of the end cover and located at the axial end of the outer circle part of the planetary gear set, and an opening of the first annular groove faces the meshing part of a gear ring and a planetary gear in the outer circle part of the planetary gear set. The transmission mechanism has the advantages that when a planetary gear set is driven, lubricating oil which originally rotates outwards f