This paper introduces the work principle of four-quadrant operating high-pressure frequency converter, and its application in coal mine auxiliary shaft winch innovation system.
介绍了四象限运行高压变频器的工作原理，并应用到煤矿副井绞车改造系统。
This paper uses the principles of ergonomics to study the operating force of both hands and feet needed by a winch operator as well as tolerable safe noise levels.
应用人类工程学的理论，对绞盘机司机手动操纵力、脚踏操纵力的合理数值进行了分析；并根据在林区的实际测试数据，计算分析出绞盘机司机耳旁噪声的安全限值。
LGA Series product is a manual operating lift platform. There are multiple base, winch and load accessories to choose from.
LGA系列产品是一种手动操作的物料升降平台，有着多种基座、绞盘和负载附件以供选择。
LGA Series product is a manual operating lift platform. There are multiple base, winch and load accessories to choose from.
LGA系列产品是一种手动操作的物料升降平台，有着多种基座、绞盘和负载附件以供选择。
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