| 摘要 |
An incremental gear drive comprises input and output shafts journalled for rotation about a common axis, the shafts being drivingly connected through a multiple reduction gear train in a rotatable housing, the gears of which are caused to rotate at a controlled speed either the same as the housing or different therefrom to effect a controlled difference of speed between the input and output shafts. The unit includes a control shaft which is driven by a control motor, connected to the first pinion of the gear train. |
