80T门式起重机设计含7张CAD图.zip

摘 要
随着经济建设的快速发展，中国的基础设施逐渐扩大，道路，机场，港口，水利水电，市政建设等基础设施建设规模也越来越大，门式起重机市场的需求也增加了,本课题是基于对8T门式起重机的设计，通过设计出它的各个组成部件，例如大梁，地梁、竖梁以及小车、主副提升机构来达到本次毕业设计的目的。
普通门式起重机一般由小车、起升机构、小车运行机构大梁、竖梁、横梁等组成。起升机构包括液压马达、制动器、减速器、卷筒和滑轮组。液压马达通过减速器带动卷筒转动，使钢丝绳绕上卷筒或从卷筒放下，以升降重物。小车架是支托和安装起升机构和小车运行机构等部件的机架，通常为焊接结构。起重机运行机构的驱动方式可分为两大类：一类为集中驱动，即用一台电动机带动长传动轴驱动两边的主动车轮；另一类为分别驱动、即两边的主动车轮各用一台电动机驱动。中、小型门式起重机较多采用制动器、减速器和电动机组合成一体的“三合一”驱动方式，大起重量的普通门式起重机为便于安装和调整，驱动装置常采用万向联轴器。起重机运行机构一般只用四个主动和从动车轮，如果起重量很大，常用增加车轮的办法来降低轮压。当车轮超过四个时，必须采用铰接均衡车架装置，使起重机的载荷均匀地分布在各车轮上。桥架的金属结构由主梁和端梁组成，分为单主梁桥架和双梁桥架两类。单主梁桥架由单根主梁和位于跨度两边的端梁组成，双梁桥架由两根主梁和端梁组成。主梁与端梁刚性连接，端梁两端装有车轮，用以支承桥架在高架上运行。主梁上焊有轨道，供起重小车运行。桥架主梁的结构类型较多比较典型的有箱形结构、四桁架结构和空腹桁架结构。
关键词：门式起重机；起升机构；主梁；结构

Abstract
Pneumatic manipulator is a automated devices that can mimic the human hand and arm movements to do something，aslo can according to a fixed procedure to moving objects or control tools. It can replace the heavy labor in order to achieve the production mechanization and automation, and can work in dangerous working environments to protect the personal safety, Therefore widely used in machine building, metallurgy, electronics, light industry and atomic energy sectors.
This article is mainly of the pneumatic manipulator the overall design, and pneumatic design. This mechanism of manipulator includes cylinders and claws and connectors parts, it can move according to the due track on the movement of grabbing, carrying and unloading. The pneumatic part of the design is primarily to choose the right valves and design a reasonable pneumatic control loop, by controlling and regulating pressure, flow and direction of the compressed air to make it get the necessary strength, speed and changed the direction of movement in the prescribed procedure can replace the heavy labor in order to achieve the production mechanization and automation, and can work in dangerous working environments to protect the personal safety, Therefore widely used in mac