摘要
介绍了轧机液压AGC系统的工作原理,对位置超差报警、轧制力波动报警及零位电流异常与相关故障等故障进行分析;对漏油、卡阀、堵塞、闷阀、不稳定等常见的伺服阀故障现象进行分析,并找出故障原因.最终提出了一系列预防措施,包括伺服阀存放、油液清洁度控制、伺服阀状态在线监控等,并总结了更换伺服阀时的正确操作流程.通过对轧机液压AGC系统和伺服阀故障进行研究和分析,可以有效提高系统的稳定性和可靠性,减少故障发生,提高生产效率.
Abstract
This article introduces the working principle of the hydraulic AGC system for rolling mills,including fault analysis of position deviation alarm,rolling force fluctuation alarm,zero position current abnormality and related faults.Analyze common servo valve faults such as oil leakage,valve jamming,blockage,valve blockage,and instability,and identify the causes of the faults.A series of preventive measures were ultimately proposed,including storage of servo valves,control of oil cleanliness,online monitoring of servo valve status,etc.The correct operating procedures for replacing servo valves were summarized.By studying and analyzing the hydraulic AGC system and servo valve faults of the rolling mill,the stability and reliability of the system can be effectively improved,the occurrence of faults can be reduced,and production efficiency can be improved.
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