516吨门式起重机副起升机构设计 毕业论文 .doc

论文2604130359 5/16吨门式起重机副起升机构设计 摘 要 起重机的出现大大提高了人们的劳动生产效率和经济效益，以前需要很多人力物力才能搬运的大型物体，现在用起重机就能轻易的达到效果，尤其是在小范围的搬运过程中,起重机的作用相当明显。随着现代化工业的发展，起重机械已经成为现代生产不可缺少的重要设备之一。 起重机属于起重机械的一种，是一种作循环、间歇运动的机械。通过吊钩或其它吊具起升、下降或升降与运移物料的机械设备，又称行车、吊车、天车等. 根据它起吊物品不同及单位时间内有效工作循环数的不同，起重机又可以分轻级、中级、重级、超重级等不同的工作类型。一个工作循环包括：取物装置从取物地把物品提起，然后水平移动到指定地点降下物品，接着进行反向运动，使取物装置返回原位，以便进行下一次循环。 本次设计主要对单主梁龙门起重机进行设计与分析。包括副起升机构进行合理设计及正确计算。 关键词：工作循环； 副起升机构； 龙门起重机； Abstract Summary of cranes appear greatly improved labor productivity and economic benefits that previously might have required a lot of manpower and material resources to handling large objects, now with a crane can easily achieve the desired effect, especially on a small scale in the handling process, cranes role is quite visible. With the development of modern industry, lifting appliances have become indispensable to modern production, one of important equipment. A crane is a crane, is a circular, intermittent motion machine. By lifting hooks or other lifting, descending, or lifting and transporting materials, machinery and equipment, also known as driving, crane, crane, etc. According to its different lifting items and the different work cycles per unit of time, crane band and light, medium, heavy, excess levels in different types of work. A work cycle includes: access devices from access to lift items, then move horizontally to the designated place is lowered, then reverse movement, take the device home, so that for the next cycle. This design for design and analysis of Dan Zhuliang gantry cranes. Including the hoisting mechanism, running a mechanism and design of steel structures sensible and accurate. Key word:cycle of work； type of work； gantry crne 目 录 1绪 论 1 1.1门式起重机简介 1 1.2起重机的分类 1 1.2.1 按门框结构形式分 1 1.2.2 按主梁结构形式分 2 2起重机整体设计 2 2.1 设计参数 2 2.2 龙门起重机的总体稳定性计算 2 3副起升机构的计算 4 3.1确定机构的传动方案 4 3.1.1．副起升机构的设计计算 4 3.2副起升传动方案与卷绕装置 4 3.2.1确定副起升机构传动方案，选择滑轮组和吊钩组 4 3.2.2选择钢丝绳 6 3.2.2.1钢丝绳所受最大拉力 6 3.