十吨位桥式起重机起升机构设计说明书[带图纸].doc -- 45 元

无锡太湖学院毕业设计（论文）题目十吨位桥式起重机起升机构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（职称讲师）（职称）2013年5月25日III摘要起重机是用来对物料做起重、运输、装卸和安装等作业的机械设备，它可以减轻体力劳动、提高劳动生产率和在生产过程中进行某些特殊的工艺操作，实现机械化和自动化。起升机构包括电动机、制动器、减速器、卷筒和滑轮组。电动机通过减速器，带动卷筒转动，使钢丝绳绕上卷筒或从卷筒放下，以升降重物。本文就十吨桥式起重机起升机构做设计计算，确定起升机构传动方案，确定起升机构工作级别，对起升机构的主要部件卷筒、钢丝绳、滑轮等钢丝绳卷绕系统，电动机、联轴器、减速器等驱动装置进行设计计算，验证卷筒壁压应力，卷筒应力，确定吊钩装置构造方案，吊钩横梁，滑轮轴的计算等。对起升机构运行的过程，包括起升速度、起升和制动时间进行计算和验算。关键词传动方案卷绕系统驱动装置起升运行IVAbstractCraneisusedtostartheavymaterials,transportation,handlingandinstallationofmachineryandequipmentandotheroperations,whichcanreducemanuallabor,improvelaborproductivityandintheproductionprocessforsomespecialprocessoperation,mechanizationandautomation.Liftingmechanismincludesamotor,brake,reducer,drumandpulley.Motorthroughreducer,drivingdrumrotation,sothatthewireropearoundthedrumorfromarolldowntoliftheavyloads.Inthispaper,tentonscranehoistingmechanismtodothedesigncalculationstodeterminethetransmissionschemeliftingmechanism,hoistingmechanismtodeterminetheworkinglevelofthemaincomponentsofthehoistingmechanismdrum,wirerope,wireropewindingsystempulleys,motors,Unitedcoupling,reducerdrivesthedesigncalculations,validationreelwallstress,stressreel,hookdeviceisconfiguredtodetermineprogram,hookbeams,pulleyshaftcalculation.Hoistingmechanismforrunningprocesses,includingtheliftingspeed,liftingandbrakingtimecalculationsandchecking.KeywordstransmissionschemewindingsystemdriveliftingoperationV目录摘要.............................................................................................................................................IIIAbstract.........................................................................................................................................IV目录................................................................................................................................................V1绪论...........................................................................................................................................11.1桥式起重机的简介..............................................................................................................11.2起重机械的发展..................................................................................................................21.3起重机械的特点..................................................................................................................22起升机构主要部件的设计计算.................................................................................................42.1主要参数...............................................................................................................................42.2确定起升机构传动方案.......................................................................................................42.3确定吊钩和滑轮组..............................................................................................................52.4钢丝绳的计算......................................................................................................................62.4.1钢丝绳所受最大拉力....................................................................................................62.4.2钢丝绳允许的偏斜角....................................................................................................72.5卷筒的计算..........................................................................................................................82.5.1卷筒材料........................................................................................................................82.5.2卷筒直径计算................................................................................................................82.5.3卷筒长度........................................................................................................................82.5.4卷筒壁压应力验算........................................................................................................82.5.5卷筒应力验算................................................................................................................92.6绳端固定装置的计算........................................................................................................102.7取物装置............................................................................................................................122.7.1确定吊钩装置构造方案..............................................................................................122.7.2吊钩主体结构的主要尺寸的计算..............................................................................122.7.3吊钩强度验算..............................................................................................................132.7.4吊钩弯曲部分断面AA强度验算.............................................................................132.7.5吊钩弯曲部分断面BB强度验算.............................................................................142.7.6推力球轴承的选择......................................................................................................142.7.7吊钩横梁的计算..........................................................................................................152.7.8滑轮轴的计算..............................................................................................................162.7.9拉板的强度校核..........................................................................................................173起升运行机构设计...................................................................................................................193.1力矩的计算........................................................................................................................193.1.1平稳上升阶段..............................................................................................................193.1.2平稳下降阶段..............................................................................................................203.1.3上升起动阶段..............................................................................................................20VI3.1.4下降制动阶段..............................................................................................................223.2电动机的选择....................................................................................................................223.2.1电动机的功率确定......................................................................................................223.2.2验算电动机发热条件..................................................................................................233.3减速器的选择....................................................................................................................233.3.1减速器传动比..............................................................................................................233.3.2减速器的选取..............................................................................................................233.3.3输出轴强度校核..........................................................................................................233.4起升速度和实际所需功率................................................................................................243.4.1实际速度......................................................................................................................243.4.2实际功率......................................................................................................................243.5制动器的选择....................................................................................................................243.6起升和制动时间验算........................................................................................................253.6.1起动时间验算..............................................................................................................253.6.2制动时间验算..............................................................................................................263.7.1疲劳计算......................................................................................................................263.7.2强度验算......................................................................................................................274总结与展望...............................................................................................................................294.1总结....................................................................................................................................294.2展望....................................................................................................................................29致谢...........................................................................................................................................30参考文献.......................................................................................................................................31