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20 桥式起重机 设计 CAD 图纸 说明书

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20-5t桥式起重机设计【含CAD图纸、说明书】,20,桥式起重机,设计,CAD,图纸,说明书

内容简介：

摘 要起重机是一种作循环、间歇运动的机械。本篇毕业设计为20/5t吊钩桥式起重机的设计，主要用于车间及仓库的起吊及搬运货物。该起重机主要是由大梁、起升装置、端梁、大梁行走机构、起升装置行走机构、轨道和电气动力、控制装置等构成。以间歇、重复工作方式，通过起重吊钩或其它吊具的起升、下降，或升降与运移重物。本次设计的起重机工作特点是具有周期性：在每一工作循环中，它的主要机构作一次正向及反向运动，每次循环包括物品的装载及卸载，搬运物品的工作行程和卸载后的空钩回程，前后两次装载之间还有包括辅助准备时间在内的短暂停歇。关键词：起重机吊钩桥式运行机构AbstractCrane is a for loop, intermittent motion machinery. This school is designed to 20/5t hook bridge crane design, the main workshop and warehouse for lifting and transporting cargo. Mainly by the beam of the crane, lifting devices, side beams, girders running gear, running gear lifting device, track and electrical power, control devices and other accessories. Intermittent, repetitive work, through the lifting hook or other lifting spreader, down, or lift and transport heavy loads.The design of the crane is characterized by cyclical: each work cycle, and its main body to conduct a forward and backward motion, each cycle including loading and unloading goods, transport and unloading of goods after the working stroke return an empty hook, there are between two consecutive loading, including auxiliary short preparation time, inclu