摘要线材的用途很广，在国民经济各个部门中，线材占有重要地位。近年来，对线材性能及表面质量的要求越来越高。尤其是对线材的化学成分、机械性能、晶粒组织及晶粒粒度都要做检验，符合标准方可出厂。所以，对线材的苛刻要求决定了新轧机及相关新技术的飞速发展。线材轧机属于小型轧钢机械范畴。线材轧机与其它轧钢机一样，其主机列也包括执行机构、传动装置、和原动机三个基本组成部分。本次设计在收集整理了国内外先进的线材轧制设备和技术的基础上，对设计方案进行了优化选择。首先，根据压下规程和轧制速度计算轧制力和轧制力矩，对电机进行选择、校核。然后对于主要零部件进行了受力和强度分析、校核；对于主传动装置中的减速器、联轴器、万向接轴进行了设计，同时对润滑方式进行了选择。最后，对该轧机的经济效益进行分析评价。关键词：线材轧机；轧制力；轧制力矩；强度；主传动TheDesignofφ450BarandWireRodMillAbstractAstheuseofwirerodisverybroad,ineverydepartmentofnationaleconomy,wirerodpossessimportantposition.Inrecentyears,fortherequirementofthesurfacequalityandperformanceofwirerod,itismoreandmorehigher.Somanyparameterstobeinspected,especiallyforthechemicalcomposition,mechanicalperformance,crystalmicroscopicorganizesandcrystalmicroscopicsizeofwirerod,accordwithstandardsidecanbesoldout.Sonewrollingmillandrelatednewtechnologyshouldbedevelopedfastfortheharshrequirementofwirerod.Therodmillbelongstothesmallsteelrollingcategory.Therodmillissamewithothermills,itsmainenginerowalsoincludestheimplementingagency,thetransmissiondevice,andthedrivingforcethreebasicbuildingblocks.Thisdesigninthecollectionreorganizedthedomesticandforeignadvancedrodrollingequipmentandinthetechnicalfoundation,carriesonthechoiceandtheappraisaltothedesignproposal.First,accordingtoassignsdepressestheregulationsandtherollingspeedcomputationrollforceandtherolltorque,andhascarriedonthechoiceandtheexaminationtotheelectricalmachinery.Then,hascarriedonthestressanalysisandtheessentialexaminationregardingthemainsparepart.Regardingmaindrive'sinreductiongear,theshaftcoupling,therotarycouplingspindlehavecarriedonthedesign,simultaneouslyhascarriedonthechoicetothelubricationway.Finally,carriesontheanalysisappraisaltothisrollingmill'seconomicefficiency.Keywords:wirerodrollingmill;rollforce;rolltorque;intensity;maindrive目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc263835360"1绪论PAGEREF_Toc263835360\h1HYPERLINK\l"_Toc263835361"1.1选题背景和目的PAGEREF_Toc263835361\h1HYPERLINK\l"_Toc263835362"1.2线材轧机的国内外发展概况PAGEREF_Toc263835