| 摘要 |
The present application relates to a torque transfer device for an electric machine rotor, wherein the device comprises a gear shaft on which is provided an external connecting key; a rotor shaft on which is provided an internal connecting key; wherein the external connecting key mates with the internal connecting key in a nested manner, so as to connect the gear shaft to the rotor shaft circumferentially. The present application also relates to an electric machine comprising the device. In the technical solution of the present application, no restrictions are placed on the diameters of the gear shaft and the output gear, therefore gear shafts of different sizes may be employed to mate with the rotor shaft, so that the design of the electrically driven wheel system has a higher level of flexibility. |
