| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an apparatus for preloading a multiple-degree-of-freedom ultrasonic motor which suitably preloads the multiple-degree-of-freedom ultrasonic motor. <P>SOLUTION: The multiple-degree-of-freedom ultrasonic motor of a suspending and fixing installation type includes a stator 1 and a rotor 2. A characteristic constitution means includes a plurality of elastic elements 4, a preload generating means having an elastic element stator side attaching material 5 and an elastic element rotor side attaching material 6 elastically interposed between both the sides of the elastic elements 4, a rotary shaft 7 for directly coupling the rotor 2 to a heavy load 3, a preload transmitting bearing having a bearing inner ring 8, a bearing outer ring 9 and a rolling element 10 for bearing the rotary shaft 7, and a preload transmitting means having an upper side bearing inner ring fixing material 11 and a lower side bearing inner ring fixing material 12 for assembling the preload transmitting bearing between the fixing member 11 and the fixing member 12. The characteristic constitution means is adopted for the multiple-degree-of-freedom ultrasonic motor. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
