METHOD FOR ASSEMBLING A FAN TO AN ELECTRIC MOTOR AND MOTOR-FAN ASSEMBLY OBTAINED BY SUCH A METHOD

摘要

A method for assembling a rotor (20) with an electric motor (1). The electric motor (1) comprises a drive shaft (3) which extends along a longitudinal axis of rotation (X-X) and the rotor (20) comprises a hub (38) capable of receiving the drive shaft (3). The method comprises the stages of supporting the motor (1) and the rotor (20), pushing the drive shaft (3) axially in the direction of the axis of rotation (X-X) until it abuts against an axial stop (37) located at a predetermined axial coordinate (X0) along the axis of rotation (X-X), axially immobilizing the drive shaft (3) and pushing the rotor (20) in the direction of the axis of rotation (X-X) over a predetermined secured length (L) of the drive shaft (3) such as to secure the said rotor (20) to the drive shaft (3) through an interference fit. The securing length (L) depends on the predetermined axial coordinate (X0) and the length (LA) of the drive shaft (3).