任学平,冯云鹏，王亚辉，谈艳阳

（内蒙古科技大学机械工程学院，内蒙古包头，014010）

关键词：UR轧机；齿轮座；咬钢速度；有限元分析

中图分类号：TG333文献标志码：A

摘要：基于对某轨梁厂UR轧机齿轮座下箱体底座圆弧处的裂纹事故，为掌握高速咬钢冲击对齿轮座下箱体的影响，建立了UR轧机主传动系统的几何模型，采用ANSYS Workbench当中的LS—DYNA模块完成了对UR轧机轧制过程的数值模拟，分析不同的咬钢速度对UR轧机齿轮箱应力及形变量的影响，并判断UR轧机齿轮座出现异常的原因，为设置合理的咬钢速度提供理论依据。

Simulationanalysis of the influence of UR rolling mill on the gear box of the main drivesystem under the condition of high speed

RENXue-ping, FENG Yun-peng, WANG Ya-hui , TAN Yan-yang

(InnerMongolia University of Science and Technology, Institute of Mechanical Engineering, Baotou 014010, china)

Key words：Rolling mill; gearseat; biting speed; finite element analysis

Abstract：Duo to the crackaccident on the box base arc under the UR rolling mill gear seat in actualproduction of a rail beam plant, UR mill main drive system of geometric modelwas established to master the influence of different biting speed on the box underthe gear seat . ANSYS Workbench of LS-DYNA module was used to complete thenumerical simulation of the mill rolling process of UR.The effects of differentbiting speed on stress and deformation of UR rolling mill gear box was analyzed,and reasons for the abnormal situation of UR mill gear seat was determined,providing a theoretical basis for setting up the reasonable bite steel speed .