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我矿采矿区的主要生产设备WK-4型电铲,自从开始用于剥离以来,始终未能达到正常的生产水平。其主要表现为每当遇到大块,电铲啃不动,铲斗装不满,提升缓慢无力,零位发生漂移,致使电铲工作不够稳定。针对这种情况,我矿采区的工人、干部和技术人员一道,对2号铲提升系统反馈电路进行了技术改造,将原提升系统电流截止反馈部分的比较电位去掉,用稳压二极管代替,效果良好。为了达到电铲的工作特性,WK-4型电铲是采用磁放大器综合控制信号(给定信号、电流
The WK-4 shovel, the main production facility in my mining area, has not been able to reach normal production levels ever since it was first used for stripping. Its main manifestation is whenever encounters the chunks, the power shovels can not move, the shovel displeasures, enhances slowly and weakly, zero drifts, causes the shovel to work not stable enough. In response to this situation, I mining area workers, cadres and technical staff together on the 2nd shovel lifting system feedback circuit for technological transformation, the original lifting system to cut off the feedback part of the comparison of the potential to be removed, with a Zener diode instead, Good effect. In order to achieve the shovel operating characteristics, WK-4 Shovel is a magnetic amplifier integrated control signal (given signal, current