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热轧板带钢生产线精轧机换辊小车设计说明书.doc热轧板带钢生产线精轧机换辊小车设计说明书.doc -- 8 元

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黑龙江工程学院本科生毕业设计I摘要本文叙述了鞍钢2150热轧板带钢生产线精轧机换辊小车的设计情况,辊系小车的驱动方式原为链条拖动和液压缸驱动的棘轮机构共同作用,步骤烦琐,换辊时间长,改为动力小车直接驱动后,缩短了换辊时间,提高生产效率。本文概述了换辊小车的国内外发展情况及其发展方向。主要进行PC轧机换辊小车的设计。利用电机提供动力,使减速器输出轴上的链轮在固定链条上滚动,从而使小车在轨道上运动。利用液压缸使拉出钩绕销轴转动,进行挂钩或推钩,从而使工作辊拉出或推进。最终实现换辊工作。在设计过程中进行了换辊小车的传动方案、工作原理、润滑及环保与经济性分析,重点进行换辊小车的结构设计、工作参数的选择、电动机的选择及计算,设计中主要零部件的计算及校核。在参阅相关资料并借鉴前人经验的基础上,通过对换辊小车的设计及分析,各项技术均满足要求,本设计具有一定的实际应用价值。关键词换辊辊系小车链条棘轮机构动力小车黑龙江工程学院本科生毕业设计IIABSTRACTInthispaper,therollingcardesignoffinishingmillonAnshansteel2150hotrolledstripsteelplateproductionlinewaspresented.Accordingoriginaldesigned,rollchangingcarwasmovedbyachainsystemandaratchetsystem.Theprocesswastoocomplicatedanditspendsalotoftimeonrollerchanging.Afteritwasredesigned,rollerchangingtimewasshortenedandefficiencywashighlyimproved.Thispaperoutlinesthedevelopmentofdomesticandinternationalsituationoftherollingcaranditsdevelopmentdirection.ImainlydesignedrollingcarforPCmainrollermill.Itusedmotortoprovideelectricalpowersothatsprocketontheoutputshaftofreducercanrollonthesprocketfixedchain.Sorollingcarcouldmovealongtheorbit.Ituseshydrauliccylinderstopullhookaroundthepinrotation,orpushorpullhook,sothatpulledoutorpushintheworkroll.Rollerschangedworkcouldbeeventuallyrealized.Intheprocessofdesigningacar,thedrivenschemedesign,workingprinciplestatement,lubricationandenvironmentalprotectionandeconomicanalysishavebeendone.Thepapermainlyfocusesonthestructuraldesignofcar,thechoiceofmotorandworkingparameters,thecalculationandverificationofthemaincomponents.Onthebasisofconsultingtherelevantmaterialsandusingforefathersexperienceforreference,throughthedesignandanalysisofrollingcar,everyindicatorsreachesthedemands,thisdesignhasacertainvalueinactualusing.KEYWORDSRollchangingCarofrollsetChainRatchetsystemDrivingcar黑龙江工程学院本科生毕业设计1目录摘要..................................................................................................................................................................IABSTRACT..............................................................................................................................................III第1章绪论..................................................................................................................................................11.1换辊小车的概述................................................................................................................................11.1.1换辊小车的用途.....................................................................................................................11.1.2换辊小车的类型.....................................................................................................................11.1.3换辊小车的动力结构..........................................................................................................21.2国内外对换辊小车的研究...........................................................................................................31.3课题的背景及意义...........................................................................................................................51.4本文主要研究工作...........................................................................................................................6第2章总体方案设计与选择.......................................................................................................72.1换辊小车的驱动方案设计与选择...........................................................................................72.1.1传动方案设计...........................................................................................................................72.1.2电机的选择.................................................................................................................................82.2链轮与液压缸的选择......................................................................................................................82.2.1链轮的选择.................................................................................................................................82.2.2液压缸的选择...........................................................................................................................82.3本章小结.................................................................................................................................................9第3章传动系统的设计计算.....................................................................................................103.1原始数据...............................................................................................................................................103.2换辊小车所需驱动力计算.........................................................................................................103.3电机的选择.........................................................................................................................................113.3.1选择电机的结构形式.........................................................................................................113.3.2选择电机的容量....................................................................................................................113.3.3电机的校核...............................................................................................................................123.4确定传动装置的总传动比和分配传动比.........................................................................133.4.1传动装置总传动比...............................................................................................................13黑龙江工程学院本科生毕业设计23.4.2分配减速器的各级传动比...............................................................................................133.4.3各轴的运动和动力参数....................................................................................................133.5本章小结...............................................................................................................................................14第4章主要零部件的选择、设计和校核......................................................................154.1蜗轮蜗杆的设计与校核..............................................................................................................154.1.1选择蜗杆传动类型...............................................................................................................154.1.2选择材料....................................................................................................................................154.1.3按齿面接触疲劳强度进行设计....................................................................................154.1.4蜗杆与蜗轮主要几何尺寸计算....................................................................................174.2齿轮的设计与校核一...............................................................................................................194.2.1选定齿轮类型、精度等级、材料及齿数...............................................................194.2.2按齿面接触强度设计.........................................................................................................194.2.3按齿根弯曲强度设计.........................................................................................................224.2.4.几何尺寸计算.....................................................................................................................234.3齿轮的设计与校核二...............................................................................................................244.3.1选定齿轮类型、精度等级、材料及齿数...............................................................244.3.2按齿面接触强度设计.........................................................................................................244.3.3按齿根弯曲强度设计.........................................................................................................274.3.4.几何尺寸计算.....................................................................................................................284.4轴的设计及其校核.........................................................................................................................294.4.1选择轴的材料并确定其机械性能.............................................................................294.4.2轴上的功率4P,转速4n和转矩4T见3.4.3....................................................294.4.3求作用在齿轮上的力........................................................................................................294.4.4初步确定轴的最小直径...................................................................................................304.4.5轴的结构设计........................................................................................................................304.4.6求轴上的载荷........................................................................................................................314.4.7按弯扭合成应力校核轴的强度...................................................................................334.4.8精确校核轴的疲劳强度...................................................................................................344.5滚动轴承的选择及其寿命计算..............................................................................................384.5.1滚动轴承的选择...................................................................................................................384.5.2滚动轴承的寿命计算........................................................................................................384.5.3滚动轴承装置的设计........................................................................................................404.6联接电机与减速器的联轴器选择.........................................................................................404.6.1类型选择....................................................................................................................................404.6.2载荷计算....................................................................................................................................414.6.3型号选择....................................................................................................................................414.7键联接的选择及强度校核.........................................................................................................424.7.1键联接的功能及结构型式.............................................................................................424.7.2键的选择和键联接的强度计算...................................................................................424.8花键联接的选择及强度校核....................................................................................................434.8.1花键的选择...............................................................................................................................43
编号:201311201521567076    大小:2.06MB    格式:DOC    上传时间:2013-11-20
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