12t汽车起重机起升机构设计本科生毕业（设计）论文.doc

12 T汽车起重机起升机构设计 学 院 机电工程学院 专 业 班 级 学 号 姓 名 指导教师 负责教师 沈阳航空2014年6月它可以完成由人类行为的材料处理，以减轻人们的身体和提高生产效率已成为流水作业生产线主要设计起重机的一部分Abstract Lifting equipment is used for lifting materials, transportation, handling and installation of machinery. It can be completed by the material handling of human action can not be completed in order to alleviate peoples physical and boost production efficiency, In mines, ports, construction sites, warehouses, the area of hydropower and other sectors has been widely used, With the increasing scale of production, in particular the type of modernization, specialization of production needs, a variety of special purpose cranes have been produced, in many important sectors, not only in the process of production, auxiliary machinery, and has become an assembly-line production line production essential for its development machinery and equipment building on the national economy plays a positive role in promoting. Mobile crane is a kind of crane that is set on common mobile Chassis whose cab is not together with control room. It do well in moving easily but it cant move when moving and it also cant work at soft place. The content of the design is 12T truck crane ,This article discusses the overall design of truck crane, mainly picking up on the crane part of the design, including the crane, cranes, luffing mechanism, hoisting mechanism, slewing mechanism design, through analysis of the various components to to complete the overall design of a crane. Keyword：luffing mechanism ; hoisting mechanism ; slewing mechanism; Outrigger 目录 1. 绪 论 1 1.2起重机械的工作特点和作用 2 1.2.1汽车起重机的基本特点 2 1.2.2汽车起重机在生活和经济上的作用................................2 1.3.1国内汽车起重机的发展趋势 3 1.3.2国外汽车起重机的发展趋势 4 1.4基本构成 6 1.5主要技术指标 7 2.总体设计 8 2.1概述： 8 2.2设计要求 9 2.3起重机的主要性能参数 9 2.4总体计算 10 2.4.1吊臂几何尺寸的确定 10 2.4.2 变幅油缸的长度 13 2.4.3 起升机构计算 15 2.4.4