架桥机传动系统机械CAD图纸设计.doc

毕业设计（论文）中文摘要 架桥机传动系统设计 摘 要：架桥机就是架设桥梁的设备，在设计根据设计要求确定行星减速器的结构和各个传动部件的尺寸并对各个设计零部件进行校核等等关键词：；；行星轮系毕业设计（论文）外文摘要 The drive system design of brige girder erection machine Abstract:The brige girder erection machine is the equipment of building brige,it also means a device with a prefabricated good beam tablets placed into prefabricated good Pier. The machine belongings to the crane, because its main function is to lift, then beam Tablet shipped to location down. Its work environment, or their requirements in terms of demanding,is high security requirements. And there is a beam on-going row, or longitudinal movement(General define of industry to bridge the orientation is vertical, vertical and transverse direction to bridge ). Erector divided into erecting road bridge, General passenger railway bridge and the railway bridge. In the design,double simply supported beam erection machine is used,It will be upper single-box-shaped beam into two box, tap on both sides. There was a single cantilever acting in one direction(As the long march-type and 66(changed)-type), and the double cantilever interaction(As the red flag-type、the long march-type and the liaoyuan-type). Erector is essentially a special crane,it is lifting the weight, therefore the low rate of work.This section is affected by clearance limit, and thus the entire bridge machine layout is very compact, requires each part size as small as possible.So, extensive use of transmission ratio, small size of the planetary gear, and arranged in the space of the reel drum unit form planets. According to the design requirements,it determine the structure of the planetary gear reducer and transmission components of dimensions, and each design of check components. Keywords: Brige girder erection machine；winding drum；planetary gear train 目 录 1 绪论 1 1.1 国内外研究水平 2 1.2 发展趋势 3 1.3 性能要求 4 2 电动机选择、分配传动比 6 2.1 电动机的选择 6 2.2 分配传动比 6 3 传动机构的设计与计算 9 3.1 内齿轮设计 9 3.2 行星轮齿轮设计 12 3.3 传动轴设计 27 3.4 键的选择和校核 32 3.