In the article some examples is given to analyse planetary shifting mechanism with complex planetary gearset, deduct formulae of its transmission ratio and briefly evaluate it.
一是举例分析含复合排的行星变速机构，建立其传动比公式，并进行评价。
The speed shifting mechanism is a two-stage or more than two-stage speed shifting mechanism formed by that at least two pairs of straight gears are made a transmission fit.
所述变速机构是由至少两对直齿轮传动 配合构成的两级或两级以上的变速机构。
The other speed shifting mechanism is a shaft of the driven gear that is provided with a tooth driving wheel that puts the roll shaft in motion through transmission.
另一个动力辊变速 机构是：在所述从动齿轮介轴上还装有齿系传动轮，该齿系传动轮 将运动副传递给上辊轴。
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