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门式起重机毕业设计

门式起重机毕业设计【篇一:门式起重机毕业设计】摘要龙门起重机是一种应用广泛的起重运输机械,在铁路货场、港口和工厂大量使用。

大车运行机构和副起升机构是龙门起重机的基本机构,其设计质量对起重机性能有直接的影响,因此掌握运行机构的设计方法对起重机设计具有重要意义。

论文主要完成了一下工作:(1)各机构布置方案的总体设计;(2)各机构及部件的设计研究和设计计算;(3)各机构部件主要技术指标校核;(4)运行机构总图设计与零部件图设计。

具体工作如下:论文首先介绍了起重运输机械的用途和现代起重机的发展趋势。

然后根据龙门起重机各机构的设计要求,结合所学的专业知识,按照国家相关规范和起重机设计手册进行了大车运行机构的设计计算。

设计计算过程中主要进行了方案选择,总体布置和驱动方式确定。

相继进行了电动机、减速器、制动器等主要部件计算和校核,包括功率、力矩、强度、发热等。

最后,按照设计和选择的部件型号,查找相关尺寸进行绘图,将个部件组合在一起,画出了本次设计研究的大车运行机构,副起升机构。

通过本次毕业设计,熟悉了起重机的设计计算过程,通过绘图提高了自己对autocad的应用能力,巩固了所学的专业知识,为今后工作和进一步学习奠定了基础。

关键词:龙门起重机;大车运行机构;副起升机构;autocad绘图abstractthe gantry crane is one kind of hoisting machinery used widely. it is used in the railway freight yard, the port and factory. the moving mechanism is one basic mechanism of the gantry crane. design quality of moving mechanism has the direct influence to the performance of gantry crane. therefore, design of moving mechanism have important significance tothe crane design.the thesis has mainly completed following works: (1) the mechanism scheme design, (2) the mechanism and components of the design and calculation,(3) the mechanism part of main technology index check,(4) operationmechanism design of general layout and component design.the thesis introduces the effect and classify of the crane at first, then it introduces the developing current of modern cranes. through the introduction all of us can get some knowledge about crane more or less. the primary content of the thesis is designing the right moving framework to fit the work environment according to the known parameter. during the designing time, the most important thing is choosing the right project of the whole framework to drive the crane, choosing the driving project, the disposing project of the retarder and driving wheel. for example, after i design and examine each part of the crane like linker,arrester,electric motor and so on. all of the parts fit together in order is out moving framework of the crane.at last, i search the correlation size to carry on the cartography according to the model of various parts. enhanced own to the autocad application ability by cartography.the graduation project will build the foundation for the work and study in the future.keywords: gantry crane , crane traveling mechanism, auxiliary lifting mechanismautocad design目录绪论 ....................................................................................................... . (1)1.副起升机构的设计计算 (3)1.1副起升机构传动方案与卷绕装置 (3)1.2电动机的选择 ....................................................................................................... . (7)1.3.减速器的选择 ....................................................................................................... . (9)1.4制动器的选择 ....................................................................................................... .. (11)1.5联轴器的选择 ....................................................................................................... .. (11)1.6起动时间与制动时间的验算 (13)1.7高速浮动轴的设计 (14)2.大车运行机构的设计计算 (17)2.1 主要参数与机构的布置简图 (17)2.2 电动机的选择 ....................................................................................................... . (17)2.3 减速器的选择 ....................................................................................................... . (21)2.4 制动器的选择 ....................................................................................................... . (23)2.5 联轴器的选择 ....................................................................................................... . (24)2.6 不打滑条件 ....................................................................................................... .. (26)结论 ....................................................................................................... .. (29)致谢 ....................................................................................................... .. (30)参考文献 ....................................................................................................... . (31)附录 ....................................................................................................... .. (32)绪论0.1门式起重机简介门式起重机又称龙门起重机,是露天物料搬运广泛采用的大型装卸机械,它与其它类型的起重机相比,具有起重量大,作业空间大,货场面积利用率高,装卸效率高,基建投资少,运行成本低等优点。

因此,它广泛用于工矿、交通运输和工程建设等部门,尤其能在铁路货场的装卸作业中发挥重要的作用。

目前世界销售市场对起重机械的需求量正在不断增加,从而使国外各种制造起重机企业在生产中更多地采用优化设计,机械制动化和自动化设备去提高劳动生产率,这对世界销售市场,制造商和用户都产生了巨大的影响。

世界上工业发达国家已经开始进入新的技术革命时代,这个时代的特征是有大量的新技术出现,它使企业开始走向小型化,分散化,和专业化,另一个特征是知识的不断更新,生产达到高度柔性化阶段。

我国目前仍然处在设计、生产周期化阶段,起点低,设备落后、相对发达国家落后15—20年左右。

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