| 摘要 |
<P>PROBLEM TO BE SOLVED: To allow appropriate adjustment of vibration absorbing performance, prevent a vibration absorbing disk one mounted in a rotating body from becoming useless, and contribute to the enhancement of vibration absorbing effect and reduction in manufacturing cost. <P>SOLUTION: A rotary drive device 1 comprises a rotary shaft 2 axially supported between prescribed frames F so as to be rotatable around an axial center, a rotational load 3 projected radially outward from the rotary shaft 2 and integrally rotated therewith around the axial center, a drive motor 4 for rotating the rotary shaft 2 around the axial center and a centrifugal pendulum type vibration absorber 5 externally fitted to the rotary shaft 2 so as to be concentrically and integrally rotatable therewith. The centrifugal pendulum type vibration absorber 5 consists of a disk 6 in which a mounting hole 7 is bored, a centrifugal pendulum 8 loosely fitted to the mounting hole 7 and an adjustment means 9 for adjusting relative position of a hole center position of the mounting hole 7 and a gravity position of the centrifugal pendulum 8. <P>COPYRIGHT: (C)2010,JPO&INPIT |
