QD吊钩桥式起重机安装与维修.doc

 毕 业 论 文 课题名称 QD吊钩桥式起重机安装与维修 院/专 业 机械工程学院/数控设备应用与维护 班 级 学 号 学生姓名 指导教师： 2012 年5月30日 QD吊钩桥式起重机安装与维修 概要 随着科学技术的日益发展，先进的电气控制技术和机械技术逐渐应用到起重设备上，使起重设备的自动化程度更加完善、结构日益简化、性能更加可靠、品种也越来越先进,这已成为企业技术进步和技术改造的一个重要趋势。 本篇毕业论文首先综述起重机的组成，一般由主起升运行机构、大车凸轮运行机构、小车凸轮运行机构组成。然后讲述了桥式起重机的电气控制（由主电路和控制电路，及照明信号电路组成），接着就是桥式起重机的金属结构和电气系统的安装；再者就是常见的主要部件和电气故障排查和维修,最后是本毕业设计的总结。 关键词：桥式起重机，安装，维修 Abstract With the development of science and technology, the advanced electric control technology and mechanical technology has been gradually applied to lifting equipment, so that the lifting equipment automation degree is more perfect, more simple, more reliable performance, variety is more and more advanced, it has become the enterprise technological progress and technological innovation is an important trend in the. This thesis firstly reviews the crane composition, generally consists of a main lifting mechanism, the operation mechanism, cam cam car running mechanism. Then the bridge crane electrical control (from the main circuit and control circuit, and light signal circuit ), followed by bridge crane metal structure and electrical system installation; furthermore is common principal components and electrical troubleshooting and repair, and finally the graduation design summary Key words: bridge crane , installation , repair 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc326419310 第1章 绪 论 PAGEREF _Toc326419310 \h 1 HYPERLINK \l _Toc326419311 1.1起重机的简介 PAGEREF _Toc326419311 \h 1 HYPERLINK \l _Toc326419312 1.2 起重机的特点及分类 PAGEREF _Toc326419312 \h 1 HYPERLINK \l _Toc326419313 1.2.1 起重机的特点 PAGEREF _Toc326419313 \h 1 HYPERLINK \l _Toc326419314 1.2.2 起重机的分类 PAGEREF _Toc326419314 \h 2 HYPERLINK \l _Toc326419315 1.3 起重机的主要参数 PAGEREF _Toc326419315 \h 3 HYPERLINK \l _Toc326419316 第2章 桥式起重机的结构 PAGEREF _Toc326419316 \h 5 HYPERLINK \l _Toc326419317 2.1 金属结构 PAGEREF _Toc326419317 \h 5 HYPERLINK \l _Toc326419318 2.2 起重机的运行机构 PAGEREF _Toc326419318 \h 6 HYPERLINK \l _Toc326419319 2.3 起升机构 PAGERE