| 摘要 |
Gearing mechanism comprising alike two stages of known planetary gearing arrangement with inner rotational members (1) and (4) mounted to common shaft (a) and the planetary gears (3) and (6) to one common carrier plate (10) and (11). The rotational input being provided by shaft (a), rotational output from outer rotational member (5) to shaft (b) and torque reaction means applied by connection of the outer rotational member (2) to a gearbox housing. Transmission ratio being determined by difference in ratio between the two alike planetary gearing stages.
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