武钢一热轧 E3立辊轧机机架有限元分析

摘要

Screw driving is used for the side press device of E3vertical hot-rolling mill housing.Since the screw driving is of complex structure,inconvenient operation,poor efficiency,hydraulic pressure adjus-ting device is a substitute for it,it is necessary to increase the size of the mounting hole.In order to ensure the strength and stiffness of the housing,the calculation and analysis of the housing is needed before the transformation of the strength.Firstly,the finite element analysis model of the housing was established, and the load and constraint was determined.Secondly,the finite element analysis model was solved under the maximum hydraulic cylinder mounting hole 596mm.The results demonstrate that,the whole housing stress is distributed symmetrically on rolling line,and the maximum Von Mises stress is 31.076Mpa.The whole housing deformation is distributed symmetrically on rolling line,and maximum deformation of side direction is 0.10mm,the maximum deformation in thickness direction is 0.1 6mm.The results show that, under the maximum hydraulic cylinder mounting hole,E3 vertical hot-rolling mill housing can meet the strength and stiffness requirements.%武钢一热轧 E3立辊轧机侧压装置原为丝杆螺母模式.由于原丝杆螺母侧压调整装置结构复杂,操作不便,工作效率低,准备更改成液压式侧压调整装置,因此原安装孔尺寸需要增大.为了保证改造后机架能够承受工作压力,需对机架的强度进行分析计算.建立机架有限元分析模型,确定机架载荷及约束.在拟定最大液压缸安装孔径596 mm 条件下对模型进行求解.机架整体应力关于轧制中线两侧对称分布,最大等效应力为31．076 MPa；机架整体位移关于轧制中线两侧对称分布,侧压方向最大变形量为0．10 mm,厚度方向最大变形量为0．16 mm.计算结果表明,在拟定最大液压缸安装孔径时,E3立辊轧机机架满足强度、刚度要求.