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汽车起重机主臂的设计.doc

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汽车起重机主臂的设计.doc

沈阳理工大学学士学位论文I摘要随着经济建设的迅速发展,我国的基础建设力度正逐渐加大,道路交通,机场,港口,水利水电,市政建设等基础设施的建设规模也越来越大,市场汽车起重机的需求也随之增加。本文通过对徐工50吨汽车起重机主臂进行研究,进一步进行主臂设计,通过计算对主臂的三铰点、主臂的长度、及每节臂的长度、液压缸尺寸进行确定,选择零部件,确定主臂伸缩方式及主臂内钢丝绳的缠绕方法,通过SOLIDWORKS软件对主臂进行三维建模。关键词50吨汽车起重机、主臂设计、三铰点、伸缩方式、三维建模沈阳理工大学学士学位论文IIAbstractWiththerapiddevelopmentofeconomicconstruction,Chinasinfrastructureisgraduallyincreasetheintensity,roadtraffic,airports,ports,waterconservancyandhydropower,municipalconstructionofinfrastructuresuchasthescaleofconstructionisalsogrowing,cranetruckcranemarketdemandwiththeincrease.BasedontheXuGong50tonsoftruckcraneboomstudy,furtherboomdesign,bycalculatingthemainarmofthethreehinges,themainarmlength,andthelengthofeacharm,hydrauliccylindersizeidentify,selectPartsandcomponents,identifythemaintelescopicarmandtheboominthewayofwindingropemethod,SOLIDWORKSsoftwareonthemainarmforthreedimensionalmodeling.Keywords50tontruckcrane,theboomdesign,thethreehingepoints,stretching,threedimensionalmodeling沈阳理工大学学士学位论文III目录摘要..........................................................IABSTRATE.......................................................II1绪论.......................................................11.1起重机械的工作特点及其在国民经济中的作用.......................................................................................11.2国内汽车起重机的发展概况和发展趋势......................................................................................................21.2.1国内汽车起重机的发展概况..........................................................................................................................21.2.2国内汽车起重机发展趋势...............................................................................................................................31.3国外汽车起重机发展概况及发展趋势...........................................................................................................41.3.1国外汽车起重机发展概况...............................................................................................................................41.3.2国外汽车起重机发展趋势...............................................................................................................................51.4SOLIDWORKS软件的介绍...........................................................................................................................................61.5本课题内容及重要意义.........................................................................................................................................7250吨汽车式起重机的主要技术参数和工作级别...........................82.150吨汽车式起重机的主要技术参数...............................................................................................................82.250吨汽车起重机的工作级别............................................................................................................................10350吨汽车起重机主臂尺寸的确定....................................133.1吊臂跟部铰点位置的确定..................................................................................................................................133.2吊臂各节尺寸的确定............................................................................................................................................143.3变幅液压缸铰点的确定.......................................................................................................................................153.4吊臂截面的选择及截面尺寸确定...................................................................................................................174主臂伸缩机构的设计计算.........................................194.1臂架伸缩机构的驱动形式..................................................................................................................................194.2臂架伸缩液压缸的计算及选择........................................................................................................................204.2.1缸筒内径计算......................................................................................................................................................204.2.2活塞杆直径...........................................................................................................................................................214.2.3缸筒壁厚及外径计算.......................................................................................................................................235零部件的选择.................................................245.1钢丝绳的计算和选择............................................................................................................................................245.1.1钢丝绳结构形式的选用..................................................................................................................................245.1.2起升用钢丝绳直径的计算.............................................................................................................................245.1.3主臂伸缩用钢丝绳的计算选用...................................................................................................................255.2滑轮及滑轮组的选择............................................................................................................................................255.2.1构造和材料的选用............................................................................................................................................255.2.2起升用滑轮尺寸的确定及选用...................................................................................................................265.2.3滑轮组的选择......................................................................................................................................................276主臂的三维建模及装配...........................................28沈阳理工大学学士学位论文IV6.1基本臂的建模...........................................................................................................................................................296.1.1基本臂臂箍的建模............................................................................................................................................296.1.2理绳器的建模......................................................................................................................................................326.1.3变幅缸支撑座建模............................................................................................................................................336.1.4基本臂的总装配.................................................................................................................................................356.2主臂建模总装配......................................................................................................................................................36结论..........................................................41致谢..........................................................42参考文献.......................................................43附录A.........................................................44附录B.........................................................56

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