| 摘要 |
<p>An antibacklash gear drive system including an internal ring gear (46) engaged with a pinion gear (76) powered by a motor drive assembly (48). The motor drive assembly together with the pinion gear is mounted on an eccentric plate (58) so that the rotational axis (72) of the pinion gear is offset from the central axis (66) of the eccentric plate (58). The eccentric plate is adapted to be rotated about its central axis (66) by an adjustment mechanism (86) whereby the distance between the rotational axis (72) of the pinion gear and the rotational axis of the ring gear is varied to increase or decrease, as desired, the engagement of the teeth of the ring and pinion gears thereby to increase or decrease the backlash between the two gears.</p> |
