摘要
利用有限元分析和断口分析,结合理论计算和现场电流反馈曲线,对某钢厂1780轧机R2粗轧机主传动接轴断裂原因进行了分析。结果表明,叉头缺陷不是叉头折断的主要原因;叉头折断不会导致轧辊及轧辊扁头断裂;事故中,上轧辊扁头首先发生断裂,随后叉头孔、下轧辊扁头、叉头虎口依次发生断裂,事故发生。
This article does the research on tracture reasons ot mare drive spindle and working rolls m a 1780 rolhng mill R2 rougher mill, by using finite element analysis and fracture analysis, combined with theoretical calculations and field current feedback curve. The results are shown as follows ： defect of the jaw is not the main reason for its fracture ; break of jaw will not lead to fracture of the working rolls and roll flat head; during the accident, the upper roll flat head breaks firstly, then the jaw hole, latter upper roll flat head and jaws of death break in sequence, accident happens.
出处
《机械强度》
CAS
CSCD
北大核心
2014年第5期809-812,共4页
Journal of Mechanical Strength
关键词
主传动接轴
叉头
轧辊
断裂
失效分析
Main Drive Spindle
Jaw
Working rolls
Fracture
Failure analysis
