change drive by sliding gear 滑移齿轮变速
This paper brings out feasibility and applicability to make change drive of double step sliding gear by moving one gear width along axis under conditions of Corresponding ratio of gear.
本文阐述了双联滑移齿轮在适当传动出情况下，轴向移动一个齿轮宽度就可以进行变速的可行性及适用场合。
Automatic yarn let-off system which used change gear drive for regulating run-in values.
采用交换齿轮调节送经量的积极式送经机构。
Change gear ratio range, in particular, using planetary transmission, the transmission ratio can be up to 100 ~ 200 (single stage), the growth rate for slow down or drive.
传动比变化范围大，特别是采用行星传动时，传动比可到100 ~ 200(单级)，适用于减速或增速传动。
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