龙门刨电气技术改造研究

Research on Technological Transforming of Electrical Control System on Double-Column Planner

介绍了采用晶闸管直流调速系统取代直流发电机电动机组拖动系统，采用可编程序控制器取代继电接触控制系统，对龙门刨电气控制系统进行技术改造的方法改造后的龙门刨在降低能耗。

This paper introduced the technological transforming method of electrical control system on the double-column planner,by using thyristor DC motor speed control system instead of DC generator motor speed control system and using programmable controller instead of contactor control system.After technological transformation,the double-column planner has good economic and social profit,either in saving electrical power or decreasing voice pollution. \ \