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冲压式芡实剥壳机设计说明书[带图纸].doc

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冲压式芡实剥壳机设计说明书[带图纸].doc

辽宁科技学院本科生毕业设计(论文)第页1目录冲压式芡实剥壳机.....................................................................................错误未定义书签。摘要............................................................................................................................................3ABSTRACT..............................................................................................................................4THEHEADMETALCLIPPERDESIGN............................................................................41绪论.........................................................................................................................................51.1课题选择的背景和目的..................................................................................................51.2冲压式芡实剥壳机国内外发展现状..............................................................................61.3冲压式芡实剥壳机的现状..............................................................................................71.3.1冲压式芡实剥壳机在车间布置和作用.................................................................................71.3.2冲压式芡实剥壳机的类型和特点...................................................................................71.3.3冲压式芡实剥壳机研究的内容和方法................................................................................82方案的选择与评述..............................................................................................................102.1方案选择........................................................................................................................102.2方案评述........................................................................................................................103电机的选择..........................................................................................................................123.1剥壳力的计算................................................................................................................123.2剥壳机的扭矩计算........................................................................................................123.3剥壳时,转股稳定运转转速Hn......................................................................................133.4电机型式及电机容量的选择........................................................................................134主要零件的强度计算........................................................................................................164.1减速机的计算................................................................................................................164.1.1减速机的传动比分配................................................................................................................164.1.2减速机齿轮设计..........................................................................................................................164.1.3齿轮轴的设计计算.....................................................................................................................244.2剥壳的设计....................................................................................................................294.2.1材料的选择....................................................................................................................................294.2.2剥壳的结构设计..........................................................................................................................294.3转股轴承的选择及校核................................................................................................294.4侧隙调整机构的设计....................................................................................................314.5电动机的起动力矩的验算............................................................................................324.5.1系统飞轮力矩的计算................................................................................................................324.5.2起动时间的计算..........................................................................................................................334.5.3起动转角的校核..........................................................................................................................335润滑方法的选择..................................................................................................................375.1减速机润滑方法及润滑油的选择................................................................................37辽宁科技学院本科生毕业设计(论文)第页25.2冲压式芡实剥壳机的润滑............................................................................................376试车方法和对控制的要求...................................................................................................386.1试车要求........................................................................................................................386.2对控制系统的要求........................................................................................................387设备可靠性与经济评价.......................................................................................................397.1机械设备的有效度........................................................................................................397.2投资回收期....................................................................................................................39专题电动机选择与探讨........................................................................................................411.三相异步电动机的旋转原理.........................................................................................422.同步电动机在结构上大致有两种...................................................................................433.电机固有步距角...............................................................................................................444.步进电机的一些特点.......................................................................................................455.电动机的润滑...................................................................................................................46结论..........................................................................................................................................47致谢..........................................................................................................................................48参考文献..................................................................................................................................49附录外文翻译...........................................................................................错误未定义书签。MODELINGANDOPTIMIZATIONFORA20HCOLDROLLINGMILL..................错误未定义书签。1、FORCE,TORQUEANDPOWER...................................................................错误未定义书签。2、MATERIALYIELDSTRESSADAPTION.......................................................错误未定义书签。3、FRICTIONREPRESENTATION....................................................................错误未定义书签。4、ELASTICMILLSTANDBEHAVIOR.............................................................错误未定义书签。5、SUMMARY..............................................................................................错误未定义书签。建模与优化为20H的冷连轧.................................................................错误未定义书签。辽宁科技学院本科生毕业设计(论文)第页3冲压式芡实剥壳机摘要切头冲压式芡实剥壳机是1700热连轧机的单体设备,它的用途是切头、切尾,出现卡钢事故时,将轧件剪断,处理卡钢事故。有时也可剥壳定尺,检查轧件的质量。本溪钢铁公司1700热连轧厂的切头冲压式芡实剥壳机是为满足生产要求制造的,本设计就是改造切头、切尾冲压式芡实剥壳机及其主传动系统。重新选择主电机,新设计的减速机利用原剥壳机的底座,采用双电机,把剥壳机构的曲柄摇杆式改成转鼓式,减少了动力矩,提高了剥壳质量。设计中,进行剥壳力的计算,选择主电机的容量,进行轴、齿轮的设计计算,进行剥壳机构的改进设计,取得较好的效果,有一定的经济效益。该切头飞剪应用1700连轧厂,切头和切尾,以及事故处理也可作为1700横切机构设计参考。关键词剥壳机,转股,切头,切尾辽宁科技学院本科生毕业设计(论文)第页4AbstractTheHeadMetalClipperDesignTheheadmetalclipperis1,700hotcompaniesrollingmillsmonomerequipment.Itsuseiscutsawaytheforehead,cutsawaythetail,Whenitappearcatchesthesteelandironaccident,Itcutsbytherollingpart,processingcatchesthesteelandironthematter.Sometimesalsomaycutthesizewhichassigns,inspectsisrolledoverthepartthequality.TheBenxiironandsteelcompany1,700heatcontinuouslyrolloverthemanufacturingplanttocutawaytheforeheadclipperareforsatisfytheproductionrequestmanufacture,Thisdesignisthetransformationcutsawaytheforehead,cutsawaytherearpartclipperanditsthemaintransmissionsystem.Rechoosesthemainelectricalmachinery,thenewdesigndeceleratesthemachineuseoriginallytocutthemachinethefoundation,usesthedoubleelectricalmachinery,cutstheorganizationthecrankrockertypetoaltertotherotordrumtype,reducedthekineticmoment,enhancedhascutthequality.Inthedesign,carriesontheshearingforcethecomputation,thechoicemainelectricalmachinerycapacity,carriesontheaxis,thegeardesigncalculation,carriesoncutstheorganizationtheimprovementdesign,obtainsabettereffect,hasthecertaineconomicefficiency.Shouldcutawaytheforeheadtoflycutsshouldbeusedin1700continuouslyrolloverthemanufacturingplant,cutsawaytheforeheadandcutsawaytherearpart,aswellastheaccidentprocessesalsomaytake1,700lateralshearsorganizationsdesignreference.Keywordsthecuttingmachine,therotordrumtype,cutsawaytheforehead,cutsawaythetail辽宁科技学院本科生毕业设计(论文)第页51绪论1.1课题选择的背景和目的钢材的生产在国民经济中占有重要地位,用轧制的方法生产钢材,具有生产率高、品种多、生产过程连续性强、易于机械化、自动化等优点。随着轧制工艺和设备的不断发展,以及国民经济各个部门对钢材品种要求的不断增长,轧制刚才的品种范围也在日益扩大。应该指出,性能参数相同的轧钢机采用不同的布置型式时,轧钢车间产品、产量和轧钢工艺就不同。因此,轧钢机标称方法还不能全面反映各种轧钢车间的技术特征,还应考虑轧钢机布置型式。轧钢机布置型式可分为单机架式、多机架顺列式、横列式、连续式、半连续式、串列往复式、布棋式等,为了进一步提高生产率,出现了连续式布置,此时各架工作机座沿轧制线依次排列,使轧件能同时在几个工作机座中连续轧制。在连续轧制时为了不使轧件在工作机座间拉断时产生很大的活套,各工作机座的轧制速度应符合秒流量相等的原则。连续布置的主要优点是单位产量投资少,轧制速度高,有较高的机械化和自动化水平。连续式布置的主要缺点是总投资大,建设周期教长,改变轧制规格时,轧机调整不方便。因此,有些热轧钢板车间采用半连轧和3/4连轧布置型式。精轧机采用连续式,粗轧采用非连续式。随着带钢热连轧机的发展,产品精度会不断提高,除了提高轧机刚性外,还用厚度自动控制。采用电动液压压下装置,为了提高带钢向厚度公差和改善板型,在现代轧机上装有液压弯辊装置。1700热连轧机组为了使粗轧后的轧件有更好的头尾形状,该热轧线上装有一台切头、切尾的冲压式芡实剥壳机,该冲压式芡实剥壳机作用是切掉轧件的舌头和燕尾,出现卡钢事故时,将轧件剪断,处理卡钢事故,有时也用剥壳定尺,检查轧件的质量。冲压式芡实剥壳机使用中存在的问题,冲压式芡实剥壳机采用发电机组供电调整困难,剥壳机构的运动不见偏心套、连杆惯性太大,电气控制部分难以实现。轧件速度和检测仪器不可靠,曲柄轴承进水等问题,由于冲压式芡实剥壳机不能正常使用,致使黑头进精轧机组造成冲击符合大,轧件的舌头和燕尾很大,有时造成过钢和卷取卡钢事故,影响产品成材率,加大废品数量。本设计的目的就是对切头冲压式芡实剥壳机进行改进设计,保证飞剪正常剥壳,这样可以引进厚度控制系统使板卷卷取整齐,提

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