机械5

多功能汽车发动机拆装实验台的设计 摘要 本设计是在研究观察了现有的发动机拆装台架，通过对汽车企业、学校现有 设备以及通过互连网的搜索，对其结构形式、构造组成、功能以及安装特点进行分析研究。发现现有的发动机拆装台架大多是功能比较单一的类型，这些性能单一的试验台架存在着费时、费力、效率低发动机支撑不稳定、拆装过程中观察发动机不便等问题。无论是汽车维修企业还是学校都需要一种功能比较齐全的，便于拆装发动机以及观察发动机结构的发动机拆装台架。而多功能发动机拆装试验台就能很好的解决这一问题。 多功能发动机拆装试验台集翻转、移动、冷磨于一体很好的解决了以往一 些台架所存在的一些问题，能基本上满足汽车维修企业以及学校维修和拆装发动机的要求。 关键词：发动机；台架；冷磨；拆装 The multi-fu
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ntle to pack 目录 摘要…………………………………………………………………………………………Ⅰ Abstract……………………………………………………………………………………Ⅱ 前言………………………………………………………………………………………… 1 第一章实验台设计的目的和意义…………………………………………………… 2 1.1汽车发动机多功能拆装架的发展趋势………………………………………… 2 1.2实验台设计的目的……………………………………………………………… 2 1.3实验台设计的意义……………………………………………………………… 2 第二章多功能发动机拆装实验台的设计…………………………………………… 4 2.1实验台的总体设计要求………………………………………………………… 4 2.2翻转架的设计…………………………………………………………………… 5 2.3台架的设计……………………………………………………………………… 5 2.4台架的选材……………………………………………………………………… 5 2.5选择车型………………………………………………………………………… 6 第三章蜗轮蜗杆减速器的设计……………………………………………………… 7 3.1蜗轮传动的组成和特点………………………………………………………… 7 3.2蜗轮蜗杆减速器的设计………………………………………………………… 7 3.3轴的计算…………………………………………………………………………10 3.4轴承选择校核……………………………………………………………………12 第四章联轴器的选择和其他零件的确定……………………………………………14 4.1联轴器的选择……………………………………………………………………14 4.2其他零件的确定…………………………………………………………………14 第五章总体装配的设计………………………………………………………………17 5.1车轮的选择………………………………………………………………………17 5.2发动机支撑形式的选择…………………………………………………………17 5.3台架的选材………………………………………………………………………17 5.4轴承的选择及校核……………………………………………………………… 18 第六章电动机的选择…………………………………………………………………19 第七章冷磨实验………………………………………………………………………21 7.1冷磨注意事项……………………………………………………………………21 7.2冷磨检查…………………………………………………………………………21 7.3冷磨后的拆检……………………………………………………………………22 总结…………………………………………………………………………………………23 参考文献……………………………………………………………………………………24 致谢…………………………………………………………………………………………25