AN ELECTRICAL MOTOR CONSTRUCTION PROVIDED WITH A PLANETARY GEAR SYSTEM

摘要

The invention relates to an electric motor construction provided with a planetary gear system, comprising an annular thin-rimmed stator (1 ) as well as a torque takeoff shaft (2) concentric relative thereto. According to the invention, the construction comprises inside the stator (1 ) an annular thin-rimmed rotor (3); a sun gear (4) fixedly coupled to the rotor and concentric with the takeoff shaft (2); an intra-rotor immovably coupled ring gear (5) with a toothed inner surface; planet gears (6) meshing with the ring gear and the sun gear; a planet carrier (7) that the planet gears are supported on; as well as a coupling arrangement (8) for transmitting torque of the rotor optionally directly or by way of the planet carrier to the torque takeoff shaft.