ROTATING ELECTRIC MACHINE

摘要

A rotating electric machine adapted to prevent fretting damage to not only the contact faces of wedges and teeth but also to the whole length of the teeth. A groove is provided in the side, having the largest width, of each wedge in the axial direction of the rotor shaft, a groove is provided in the portion where the contact face of the head of each tooth contacting the wedge meets the side of the head of the tooth having the minimum cross section in the direction of the rotor shaft, or a groove is provided in the portion where the contact face of each wedge contacting the tooth meets the side of the wedge having the minimum cross section. Fretting damage to the contact faces of the wedge and teeth which are inserted in slots of the rotor, is prevented over the whole length of the rotor tanks to the lowering of the maximum contact face pressure by the provision of the grooves, and the fatigue strength is improved.