摘要 针对细胞分离实验中同时需要摇床和离心机设备，而市场上的摇床和离心机功能单一，不能同时满足摇床和离心机的功能，浪费实验室空间和研究经费问题，提出了设计一种能实现摇床和离心机功能的多功能离心机。本文主要介绍了多功能离心机的机械部分设计过程。首先介绍了离心机和摇床的基本原理和结构组成，并确定了多功能离心机的总体方案。根据理论计算得到零部件的结构形式及尺寸。零件结构设计完成后，在UG软件中对设计的零件进行三维建模，并装配成整体，实现多功能离心机整体建模。利用UG建模可以直观地反应出零件之间的关系，可以检验出设计中存在的问题，例如零件之间相互干涉的问题。发现问题可以到零件的模型中进行修改，装配图会自动更新。检查装配图没有问题以后，导出工程图，然后生成二维图，完成了多功能离心机机械部分设计。 关键词：多功能；离心机；摇床；机构；设计 Abstract Both
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n 目录 第一章引言1 第二章多功能离心机总体方案确定2 2.1离心机基本原理2 2.1.1离心机工作原理2 2.1.2台式离心机的结构3 2.1.3离心机技术进展4 2.2摇床基本原理4 2.2.1摇床工作原理4 2.2.2摇床的结构5 2.2.2摇床技术发展6 2.3总体方案确定6 2.3.1总体方案设计7 2.3.2总体方案改进8 第三章主要零部件设计8 3.1离心机转子的设计9 3.2摇台、摇瓶夹及托盘的设计9 3.3电动机的选择11 3.4偏心轮和偏心支撑的结构设计13 3.5转轴和主轴13 3.6机架的设计14 3.7传动方案选择设计14 3.8热源室元件选择15 3.9箱体的设计15 第四章工程图16 4.1工程图16 结束语17 致谢18 参考文献19