The article introduces the raising process, composition of raising machine and its the variable speed dive control system. Multi-motor drive of raising machine's feature is highlighted.

本文简介了起毛工艺、起毛机的构成，起毛机变频调速控制系统，重点介绍了多电机传动的起毛机传动的特点。

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By adopting PID synchronous control algorithm, single chip microcomputer and photoelectric digital measuring technology, multi motor synchronous drive microcomputer control device ws developed.

采用PID同步控制算法、单片机控制技术和光电数字测量技术，研制了多电机同步传动微机控制装置。

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Through the drive circuit design of the new hydraulic transformer, it is concluded that the transmission ratio has multi-level changes due to the combination of each sub motor working mode.

通过设计单泵多马达液压变速器的传动回路，得出多马达中各个子马达之间工作方式的组合可以使变速器传动比有多级变化。

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