Troubleshooting of Main Motor Anti-thrust Bearing in the R2 Rough Roller of 1780 mm Hot-rolling Mill
Since the 1780mm hot-rolled strip mill of Beiying Company was put into use in December,2007,frequent burning out of anti-thrust bearings in the main motor of R2 rough rolling mill leaded to interlocked alarm stop which seriously affected the normal production of the rolling mill.In this paper,the burning reasons fo the anti-thrust bearing in the main motor were analyzed,the handling process of the anti-thrust bearing fault was introduced in details,and various measures were taken to guarantee the smooth running of the main motor of R2 rough rolling miller.
A virtual prototype model of machine tool is constructed by using the Pro/E software and the ANSYS software.Considering the effects of joints,this paper makes a study of dynamic analyses of machine tool and the effect of joints on the dynamic characteristics of machine tool to attain the purpose of synthetically predicting and evaluating the NC machine tool dynamic performance without a physical sample.