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人力提升机传动方案的拟定与分析计算设计说明书[带图纸].doc

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人力提升机传动方案的拟定与分析计算设计说明书[带图纸].doc

编号无锡太湖学院毕业设计(论文)题目人力提升机传动方案的拟定与计算设计信机系机械工程及自动化专业学号学生姓名指导教师(职称副教授)(职称)2013年5月25日摘要社会的飞速发展,机械行业的复杂,越来越多的领域需要各种各样的起重机械,人力提升机是用于建筑外墙装饰和野外电力设备安装等专用设备。人力可轻松操纵上下输送物料和人员填补该产品系列中的缺失在无电源供应的情况下。所以任务来源于社会生产实践。此项设计是传统的结构与创新的思想结合的成果。人力提升机在国内尚无申请专利,运用较多的是电力提升机和电力升降机。此设计主要考虑到功能实现,尺寸限制,结构,操作简单。以机械原理以及机械设计的理论知识为依据,对齿轮传动机构,螺纹传动以及其他几种常见机构进行详尽的分析,选择合适的方案。用所学的工程图学和三维制图UG的知识画出装配图,和零件图。本设计内容包括一级齿轮传动,二级齿轮传动,钢丝绳的绕法,棘轮的自锁。主动轴上的齿轮与传动轴上的齿轮啮合将脚踏上的力和力矩传递到输出轴上。输出轴上的齿轮再将力和力矩通过齿套传递到槽轮的齿轮上,带动槽轮转动,再与下方的齿轮啮合带动下面槽轮的转动,利用钢丝绳与槽轮之间没有相对滑动,从而利用钢丝绳带动整个机器在钢丝绳上下移动。关键词升降机齿轮传动棘轮自锁ABSTRACTWiththedevelopmentatfullspeedofthesummarysociety,therecoveryofthemechanicaltrade,moreandmorefieldsneedtousevariouskindsofhandlingmachinery.Humanelevatorisusedforexteriorwalldecorationandoutdoorpowerequipmentandotherspecialequipmentinstalled.Inthecaseofnopowersupplycaneasilymanipulatethehumanupperandlowertransportofmaterialsandpersonneltofillthelackofproductline.Missionisfromthepracticeofsocialproduction.Thedesignofthestructureisthetraditionalcombinationofinnovativeideasandresults.HumanelevatorhasnopatentinChina,moreelectricityandpowerlifthoisthavebeenused.Thisdesignismainlytakingintoaccounttheimplementationoffunction,sizelimits,structure,simpleoperation.mechanicalprinciplesandmechanicaldesignisbasedonthetheoreticalknowledge,Wormgeardrivemechanism,Screwdriveaswellasseveralotherdetailedanalysisofcommoninstitutions,Choosetheappropriateoption.TheprincipleaccordingtoclutchtheclutchmodeandselecttheappropriatebodiesLearnedtouseengineeringgraphicsandthreedimensionalmappingofknowledgeUGdrawassemblydrawings,andpartsdiagram.Thedesignincludesageardrive,secondgear,wireropearoundthelaw,thedesignoftheclutch,fangear,selflockingwormandworm.Taketheinitiativeanddriveshaftgearshaftgearmeshonthepedalforceandthemomentpassedontotheoutputshaft.Outputshaftofthegearteethandthensetsofforceandtorquedeliveredtothetankthroughthegearwheel,thedrivesheaverotation,thendrivengearsmeshingwiththebottomofthetankbelowtherotatingwheel,Reengagementwiththebottomofthedrivegearwheelrotationslotbelow,theuseofwireropeandthereisnorelativeslipbetweenthesheavestodrivetheentiremachineusingsteelwireropemoveupanddown.Keywordshoistgeartransfermotionwormselflocking目录摘要..............................................................................................................................................IABSTRACT....................................................................................................................................II目录...........................................................................................................................................III1绪论.............................................................................................................................................11.1本课题的研究内容和意义...................................................................................................11.2国内外的发展概况...............................................................................................................11.3本课题应达到的要求...........................................................................................................12方案拟定.....................................................................................................................................23功能原理及运动特点.................................................................................................................33.1功能原理..............................................................................................................................33.2运动特点..............................................................................................................................54确定传动装置的总传动比和分配传动比.................................................................................64.1确定总传动比......................................................................................................................64.2分配传动比..........................................................................................................................64.3各轴运动和动力参数确定..................................................................................................64.3.1各轴转速.........................................................................................................................64.3.2各轴输入功率.................................................................................................................64.3.3各轴输出功率................................................................................................................64.3.4各轴输入转矩................................................................................................................65选择钢丝绳型号.........................................................................................................................86齿轮、棘轮的设计.....................................................................................................................96.1主动轴上齿轮传动的设计计算..........................................................................................96.1.1齿轮材料,热处理及精度............................................................................................96.1.2初步设计齿轮传动的主要尺寸.....................................................................................96.1.3设计计算......................................................................................................................106.1.4齿根弯曲疲劳强度设计..............................................................................................116.2从动轮上齿轮传动的设计和计算....................................................................................136.2.1齿轮材料,热处理及精度...........................................................................................136.2.2初步设计齿轮传动的主要尺寸..................................................................................136.2.3设计计算......................................................................................................................146.2.4齿根弯曲疲劳强度设计..............................................................................................156.3棘轮的设计........................................................................................................................186.3.1棘轮机构的基本结构和工作原理..............................................................................186.3.2棘轮装置的优缺点......................................................................................................186.3.3棘轮机构中的主要问题..............................................................................................186.3.4棘轮几何尺寸的计算..................................................................................................187轴、轴承和轴键的设计和校核...............................................................................................217.1主动轴的设计校核............................................................................................................217.1.1选择轴的材料..............................................................................................................217.1.2初步计算轴的最小直径..............................................................................................217.1.3轴的结构设计..............................................................................................................217.1.4按弯矩合成力校核轴的强度......................................................................................227.2从动轴的设计校核...........................................................................................................257.2.1输入轴上的功率、转速及转矩..................................................................................257.2.2初步确定轴的最小直径..............................................................................................257.2.3轴的结构设计..............................................................................................................257.2.4按弯矩合成力校核轴和强度......................................................................................267.3滚动轴承的选择与校核....................................................................................................317.3.1主动轴轴承的型号选择和设计..................................................................................317.3.2中间轴滚动轴承的型号选择和计算..........................................................................338箱体结构设计...........................................................................................................................358.1主体设计.............................................................................................................................358.2对附件设计........................................................................................................................359结论与展望...............................................................................................................................389.1结论....................................................................................................................................38

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