CAJ | 학술논문

LG-730冷轧管机是国内最大规格伺服控制型两辊轧机，本文建立了其机架装配应力应变有限元模型，分析了LG-730机架装配在最大载荷下的变形和应力分布，在此基础上，对轧机结构进行了优化：两边机架底座宽度各减小了10 mm，机架筋板厚度由原来的120 mm减小到100 mm，机架两边厚度各减小了20 mm。优化后机架重量降低了，机架的刚度和强度分布更加均匀合理。研究结果对LG-730机架结构设计具有指导意义。
LG-730랭알관궤시국내최대규격사복공제형량곤알궤，본문건립료기궤가장배응력응변유한원모형，분석료LG-730궤가장배재최대재하하적변형화응력분포，재차기출상，대알궤결구진행료우화：량변궤가저좌관도각감소료10 mm，궤가근판후도유원래적120 mm감소도100 mm，궤가량변후도각감소료20 mm。우화후궤가중량강저료，궤가적강도화강도분포경가균균합리。연구결과대LG-730궤가결구설계구유지도의의。
LG-730 cold pilger rolling mill is the largest two-roll servo-controlled rolling mill,and the housing assembly FEM analysis model of which is developed in this paper,and then the deformation and stress distribu-tion of the saddle is analyzed under the maximum rolling force.On the base of the previous work,the saddle structure optimization is done:the width of the saddle base is reduced 10 mm,the thickness of the rib of the saddle is reduced from 120 mm to 100 mm,and the thickness of the whole saddle of reduced 20 mm.The results show that the weight of the saddle is reduced,and the stiffness also the strength of the saddle are less affected,so the calculated results have the important advising meaning for the LG-730's structure design.