S7-300PLC在矿用破碎机液压过载保护系统中的应用  

Application of S7-300 PLC for Mine Crush's Hydraulic Overload Protection System

作　　者：李解[1] 魏晓譞[1] 徐维维[1] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221000

出　　处：《流体传动与控制》2011年第3期52-55,共4页Fluid Power Transmission & Control

摘　　要：破碎机是选矿厂最常见的设备。破碎设备作业工况极为恶劣,工作负荷波动性很大,破碎过程有严重冲击,常规的液压保护系统由电接点压力表来监控油压,导致很多误操作,影响工作进程。采用PLC对液压过载保护系统进行监控,以提高保护动作的精确性。Crusher is the most common concentrator equipment and has very poor working condition, for example, workload volatile, the impact of severe crushing process. The conventional hydraulic protection system is through the point of contact pressure gauge to monitor oil pressure, resulting in a lot of misuse affecting the work process. In this paper, PLC is used to monitor the hydraulic overload protection system to improve the accuracy of protection ac- tion.

关 键 词：矿用破碎机 PLC 液压过载保护系统 

分 类 号：TH137.3[机械工程—机械制造及自动化]