With a Elliptic Gears Mechanism serving as a front-position mechanism for the sheave wheel mechanism.

将椭圆齿轮作为槽轮机构的前置机构，可以减小角加速度以降低槽轮进入和退出时的冲击。

youdao

The kinematic factors of conventional sheave wheel mechanisms are limited to a small number of magnitudes. Duing the start up and stoppage of sheave wheels there exists a certain amount of shock.

普通槽轮机构的运动系数仅为有限几个数值，槽轮起动和停止时刻存在一定的冲击。

youdao