| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cooling structure of a motor mounted to a machine such as a pressing machine strongly vibrated which suppresses an effect due to a vibration in a cooling fan without enlarging an apparatus. <P>SOLUTION: The cooling structure of the motor is provided with radial fans or sirroco fans 22a, 22b, and cools the motor 1 having a rotary encoder 3 fixed at an end of a main shaft 12 on the counter load side. A plurality of the radial fans or the sirroco fans 22a, 22b are disposed on the counter load side of the motor 1 on a concentric circle equal to the outside diameter of a motor body 11 or inner than the outside diameter and having the center at the shaft center of the main shaft 12 so as to make the shaft direction of fan motors 21a, 21b be differently oriented from the shaft direction of the main shaft 12. <P>COPYRIGHT: (C)2008,JPO&INPIT |
