Housing structure for a hub motor and lawnmower

Abstract

A housing structure for a hub motor, characterized in that it comprises a first housing part (1) and a second housing part (2), wherein the first housing part (1) and the second housing part (2) are closed together to form a receiving space (3) for receiving the transmission structure of the hub motor, several first ribs (11) are formed on the outer circumferential side of the first housing part (1) projecting outwards, wherein the first ribs (11) extend in the axial direction of the first housing part (1), several first ribs (11) are arranged at uniform intervals in the circumferential direction of the first housing part (1) and serve to fasten the first housing part (1) to the second housing part (2), an annular gear ring (12) is provided on the inner circumferential side of the first housing part (1), the annular gear ring (12) is in drive connection with the transmission structure of the hub motor,and the axial position of the first ribs (11) on the first housing part (1) is offset from the axial position of the toothed ring (12) on the first housing part (1).