摘要
抓斗起重机配用四绳抓斗的电气控制存在着缺点。新开发的四绳抓斗差动控制系统可防止抓斗开闭电动机因过载而烧毁,可实现自动沉抓与起升的半自动化控制,减轻司机的劳动强度,提高生产率,具有显著的社会与经济效益。文中介绍差动控制的特点和原理,分析了抓斗不同工况的电气控制。
There are some shortcomings in electric control for four rope grab of a grab crane. Newly developed differential control system for four rope grab can avoid overload breakdown of electric motor for opening and closing the grab, can realise semi-automatic control of automatic drop/grab and lift, thus alleviate labor strength of the operator. It shows significant social and economic effect. The features and principles of differential control are presented.
出处
《起重运输机械》
1993年第3期16-21,共6页
Hoisting and Conveying Machinery
