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大同矿务局引进的美国JOY公司生产的12CM11一9 BUN连续采煤机,自1982年使用以来,取得了较好的经济技术效益。创造了煤巷掘进连续三年突破年进万米的金国纪录。该机采.装同时完成,生产能力为8—12t/min。机组的牵引系统采用由两台串激式直流电动机驱动的电牵引系统,在系统内采用了数字式逻辑电路,使牵引系统性能完善,事故较少。本文拟对其逻辑电路工作原理作些简单介绍。一电路简介机组供电电源是660V、3相、50Hz。全
Datong Mining Bureau introduced the United States JOY’s 12CM11 a 9 BUN continuous shearer, since 1982, has achieved good economic and technological benefits. Created a breakthrough in coal tunneling for three consecutive years Jinjinjin meters into the record. The machine mining equipment installed at the same time, the production capacity of 8-12t / min. The traction system of the unit adopts an electric traction system driven by two series-wound DC motors. Digital logic circuits are used in the system to improve the traction system performance and reduce the number of accidents. This article intends to make some brief introduction to the working principle of its logic circuit. A circuit profile Unit power supply is 660V, 3-phase, 50Hz. all