采掘设备电液控制系统的研究与应用  

Research and Application of Electro-hydraulic Control System of Mining Equipment

作　　者：程凤霞 CHENG Feng-xia(Taiyuan Research Institute,China Coal Technology Engineering Group,Taiyuan 030006,China)

机构地区：[1]中国煤炭科工集团太原研究院有限公司,太原030006

出　　处：《煤炭技术》2020年第4期187-189,共3页Coal Technology

摘　　要：为了提高煤矿开采的安全及效率,实现自动化开采,采用电液控制的方式对液压阀组控制,可以实现基于PLC控制的本机操作和遥控操作。介绍了PLC控制电磁阀实现电液控制的原理,设计了双操作方式的多阀组控制的电液控制系统硬件结构,并以通信可靠性、实时性及简化系统结构为原则选用控制器EPEC作为电液控制系统的核心控制器,最后设计了软件实现流程,并对模拟手柄数据进行零点漂移及死区处理、推导出了电磁阀PWM控制的实现公式。结果表明,电液控制系统简化了液压系统结构,提高了设备操作的安全性、可靠性及响应的灵敏度,为实现采掘设备无人化作业、建设绿色矿山的目标奠定了坚实的基础。In order to improve the safety and efficiency of coal mining and realize automatic mining,the hydraulic valve group is controlled by electro-hydraulic control, which can realize the local operation and remote control operation based on PLC control. The principle of electro-hydraulic control by PLC control solenoid valve is introduced. The hardware structure of electro-hydraulic control system controlled by multi-valve group with dual operation mode is designed. The controller EPEC is selected as the principle of communication reliability, real-time and simplified system structure. The core controller of the electro-hydraulic control system finally designed the software implementation flow, and performed zero-point drift and dead zone processing on the simulated handle data, and derived the realization formula of the solenoid valve PWM control. The results show that the electro-hydraulic control system simplifies the structure of the hydraulic system, improves the safety, reliability and sensitivity of the operation of the equipment, and lays a solid foundation for the goal of unmanned mining equipment and the construction of green mines.

关 键 词：电液控制 双操作方式 控制原理 硬件结构 EPEC 软件流程 

分 类 号：TD632[矿业工程—矿山机电]