自动化工作面液压支架控制器设计

针对目前大多数煤矿仍采用手动方式操控液压支架控制器而导致作业效率低、操作安全性差等问题,介绍了一种自动化工作面液压支架控制器的硬件设计方案,重点阐述了该控制器集控功能及自诊断功能的实现方案。该控制器采用双控制核心结构及双RS485总线通信模式,可对液压支架顶板压力、推溜位移、采煤机位置等信息进行实时监测、处理及上传;可根据端头控制器发来的工艺指令自动跟踪采煤机,完成自动拉架、自动推溜等自动化采煤作业流程;采用I2C总线通信方式实现了自诊断功能,可实时监测并修正液压支架的故障动作信号。地面工业性试验及故障模拟实验验证了该控制器设计方案的正确性。

Design of hydraulic support controller for automatic working face

For problem that hydraulic support controller was operated manually in most coal mines at present,which led to low working efficiency and poor operation safety,a hardware design scheme of hydraulic support controller for automatic working face was introduced,and realization schemes of centralized control function and self-diagnosis function of the controller were expounded.The controller,which adopts dual controlling cores and communication mode of dual RS485 buses,can monitor,process and upload information real-timely including roof pressure of hydraulic support,pushing displacement and position of shearer,and realize automatic shearer tracking,support pulling and support pushing according to technical command from terminal controller.The controller also realizes self-diagnosis function by use of communication mode of I2 C bus,which can real-timely monitor and correct fault action signals of hydraulic support.The results of industrial test on the ground and fault simulation experiment verify correctness of design scheme of the controller.