| 摘要 |
The bending and turning movements of the wrist are brought about by drive motors via at least one gear train, in which a cylindrical gear pinion drives a cylindrical gear wheel via an intermediate wheel. For adjusting the backlash, the intermediate wheel is journalled on a movable support which makes contact with a cylindrical guide surface in the wrist housing and can be displaced, by means of two adjusting screws, along a circular path, the center of which coincides with the axis of rotation of the gear pinion. The intermediate wheel is journalled on an eccentric bearing pin on the movable support. |
