Research of emergency stop control scheme for electro-hydraulic control system of hydraulic support
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摘要: 针对现有液压支架电液控制设备在急停控制方面存在的可靠性低、解停不方便等问题，提出了一种基于C8051F020单片机的液压支架电液控制系统急停控制方案，制定了以专用RS485总线为急停通信通道的传输方式以及急停与复位功能互锁的具体实施方案，并采用软件方式实现了支架控制器急停故障定位与诊断以及断电时的急停状态记忆功能。基于该急停控制方案的液压支架电液控制系统已应用于某煤矿，取得了良好的效果。Abstract: For inconvenient emergency stop control with low reliability of existing electro-hydraulic control equipment of hydraulic support, an emergency stop control scheme for electro-hydraulic control system of hydraulic support was proposed which was based on C8051F020 single chip microcomputer. A transmission mode taking special RS485 bus as emergency stop signal channel was drawn up as well as concrete implementation scheme of interlocking of emergency stop and reset. Meanwhile, functions of fault location, fault diagnosis and power-off memory for emergency stop state of support controller were achieved by use of software. An electro-hydraulic control system of hydraulic support based on the emergency stop control scheme has run in a coal mine with good effect.
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