钢管铣边机右侧主铣头报警和异常后退液电分析  

Hydroelectric Analysis of Alarming and Abnormal Withdrawing of Right-side Main Milling Head of Steel Tube Edge-milling Machine

作　　者：徐根涛[1] 孙凤龙[1] 黄杰[1] XU Gentao;SUN Fenglong;HUANG Jie(Steel Pipe&Bar Business Dept.,Baoshan Iron&Steel Co.,Ltd.,Shanghai 201900,China)

机构地区：[1]宝山钢铁股份有限公司钢管条钢事业部,上海201900

出　　处：《钢管》2020年第2期40-44,共5页Steel Pipe

摘　　要：针对大型钢管铣边机右侧主铣头在生产过程中出现报警、异常后退现象,解读液压动作过程、分析液压系统原理和各监控压力曲线等,排除了液压油缸、液压阀异常原因;同时采取电气报警排查、重要电气信号监控、临时电源布放、DP通信站点模块更换等措施,查明通信远程站点报警导致右侧2号主铣头润滑信号丢失,造成铣边机右侧2号主铣头断电;异常断电激活主铣头的液压自动保护,液压回路压力曲线监控也验证了主铣头异常后退原因为通信远程站点报警。Addressing the alarming and abnormal withdrawing phenomenon of the right-side main milling head of the steel tube ede-illing machine,an analysis is made,involving such aspects as hydraulic movement process,the principle of the hydraulie system and various monitored pressure curves,etc.As a result it is confirmned that the hydraulic cylinder and valves are free of any abnormality,and has nothing to do with the said problem of the machine.Accordingly countermea-sures are taken,including screening the electrical alarms,monitoring key electrical signals,deploying temporary power supply,and replacing modules of the DP communication sites,etc.It is fnally ientifed that it is the alarming from the communication remote site that causes loss of the lubrication signal of the right-side No.2 main milling head,and thus in turm causes blackout of the said main milling head.Consequently the said abnormal blackout activates the automatic hydr-aulic protection function of the said main milling head.Furthermore the hydraulic cireuit pressure curve as monitored veifies that the above mentioned abnormal withdraw ing movement of the main milling head is caused by the alarming from the remote communication site.

关 键 词：钢管 铣边机 液压系统 锁紧 PROFIBUS-DP 通信异常 传感器 

分 类 号：TG54[金属学及工艺—金属切削加工及机床]