(论文)Φ530空间自位型高刚度轧机结构设计及校核本科毕业设计(论文)Φ530空间自位型高刚度轧机结构设计及校核业:轧钢08-3学生姓名:张白冰号:080113020019指导教师:李明答辩日期:2012-6-24燕山大学毕业设计(论文)任务书学院:机械学院系级教学单位:机设系080113020019学生姓名08级轧钢3530空间自位型高刚度轧机结构设计及校核题目性质1.理工类:工程设计);题目类型1.毕业设计(题目来源科研课题(生产实际()自选题目(了解高刚度轧机特点,设计φ530短应力线高刚度轧机;查阅设计φ12棒材产品的轧制工艺,进行轧机力能参数计算;就计算力能参数进行轧机辊系关键零部件的强度和刚度校核。1、设计图纸量:7张A1包括总图、辊系装配图、轴向调整机构图、轴承座和轧辊零件图。2、设计说明书20000字(45页)以上。3、译5000字以上英文论文一篇。1、机械设计专业基础书2、轧钢机械设计和轧钢设备及工艺等专业书3、有限元计算相关文献4、机械设计等工具手册调研、完成开题报告和文献综述;方案设计;产品工艺设计;绘制草图。完成轧机技术设计;绘制辊系图;翻译英文论文。系装配图、轴向调节机构图和总图承座和轧辊零件图;撰写设计说明书完善全部图纸和说明书,答指导教师:李明职称:副教授小型材在我国国民经济中需求量很大,2003年我国小型材实际产量约为4034万吨。约占钢材总产量的25%。我国中小型轧机1350余套,数量居世界第一。这些轧机中90%左右为横列式轧机,技术水平落后,每套轧机平均年产量不足3万套。但其总产量是小型材的60%左右。随着国内钢铁业的发展和钢材市场由卖方市场转变为买方市场,由国内竞争转变为国际竞争的变化,中小型产品必须做到高质量,高效益,这样才能在激烈的市场竞争中立于不败之地,要做到这一点,我们必须充分发挥以建或在建轧机的作用,在完全消化吸收引进设备的先进即使得前提下,必须加速对现有横列式轧机的技术改造。因此,作者结合江苏永刚集团线材分厂的实际情况,参看现有轧机,对530轧机进行了设计与改造。近几十年来,轧钢生产的技术进步取得了长足发展,尤其是在型钢生产方面,H型钢自由尺度轧制,型钢的多线切分轧制,三辊Y型轧机轧制技术的应用和发展,标志着型钢生产已经发展到一个新阶段。关键词:横列式轧机;H型钢;小型材燕山大学本科生毕业设计(论文)IIAbstractSmallsectionofChina'snationaleconomyingreatdemand,in2003actualproductionofChina'ssmallsectionofabout40.34milliontons.Steelproductionaccountsforabout25%.Smallandmedium-sizedmillinChinamorethan1350setsthenumberoftheworld.Theserollingmillinabout90%forthebarmill,technologicalbackwardness,theaverageannualoutputpermilllessthanmillionunits.Butitsoutputissmallsectionofaround60%.Withthedevelopmentofthedomesticsteelindustryandsteelmarketfromseller'smarketintobuyer'smarket,fromdomesticcompetitionintothechangesininternationalcompetitiveness,smallandmedium-sizedproductsmustbehighquality,highefficiency,soastointhefiercemarketcompetitiondoesnotstandlostland,itisnecessarytodothis,wemustbringintofullplaysoastoconstructionortheroleofrollingmillunderconstruction,likefoundinthecompletedigestionoftheadvancedimportedequipmentevenifthepremiseoftheneedtoacceleratetheexistingbarmilloftechnologicaltransformation.Therefore,theauthorscombinewirefactoryinJiangsuYonggangGroup,theactualsituation,seetheexistingmill,530millforthedesignandtransformation.Keywords:H-shapedsteelbar,smallsection目录IIIABSTRACT......................................................II......................................................III绪论....................................................1.1钢材生产概况............................................1.2线材产品................................................1.3线材轧机发展............................................1.4线材生产的新技术........................................1.5短应力线轧机............................................轧制力能参数............................................2.1机组组成概况............................................2.2机组孔型................................................2.2.1孔型设计原则......................................102.2.2孔型设计..........................................132.3第二十一架轧机轧制力的计算.............................152.3.1平均压下量Δhm的计算..............................162.3.2变形抗力确定......................................162.3.3轧件粘度系数η的计算.............................172.3.4外摩擦影响系数m的确定............................172.3.5平均单位压力Pm计算...............................182.3.6轧制力P的计算....................................182.4轧制时的咬入角、中性角以及前滑的计算...................182.4.1咬入角α的计算...................................182.4.2中性角γ的确定...................................192.4.3前滑的计算........................................192.5轧制力矩和电机功率.....................................19燕山大学本科生毕业设计(论文)IV2.5.1计算前后张力差....................................212.5.2前后张力差对摇臂的倾翻力矩........................212.5.3确定电机功率......................................212.6轧辊强度的校核.........................................222.6.1轧辊的结构特点....................................222.6.2轧辊的尺寸确定....................................232.6.3轧辊的强度校核....................................232.7本章小结...............................................26空间自位性.............................................273.1轧机轴承短寿损坏及不可靠性.............................273.2轧机轧辊弯曲微尺度等效辊系.............................273.2.1方柱型高刚度轧机..................................283.2.22050mmCVC热连轧精轧机............................283.3KZ轧机自位性能的实现...................................293.3.1Φ530KZ型高刚度轧机特点及主要参数.................303.3.2空间自适应机构原理................................323.4轴承寿命计算...........................................333.4.1轴承寿命的计算.....................................333.4.2轧机滚动轴承边界元法简介..........................343.5轧机刚度...............................................363.5.1轴承座变形量与轧辊挠度............................373.5.2拉杆及压下螺母的变形..............................373.5.3球面垫压缩量计算..................................383.6平衡弹簧...............................................393.6.1下平衡弹簧的设计计算..............................403.7本章小结...............................................41轧机压下...............................................424.1轧机压下的种类.........................................424.2压下装置的选择.........................................424.2.1压下装置传动方案的确定............................42目录4.2.2压下装置的传动参数................................424.2.3压下装置传动的几何计算............................434.3压下装置主要零件的强度校核......