1、 毕毕 业业 设设 计计 题 目 电风扇摇头机构设计 英文题目 design head of electric fan 院 系 机械与材料工程学院 专 业 机械设计制造及自动化 姓 名 年 级 2010（机 A1011） 指导教师 二零一四 年 六 月 i 摘 要 电风扇摇头装置设计是从电风扇设计开始的，也是电风扇设计中最重要的 部分，对于电风扇的研究，国内外已有不少的研究成果，但在创新这一块做的 还不够, 还有待进一步完善。 本文首先对摇头电风扇的历史和发展现状以及其类型和特点进行了介绍， 然 后介绍了设计准则, 提出方案拟定, 并选择最优方案,主要是现有的电风扇摇头 装置中平面摇杆机构，包
2、括平面摇杆机构的结构、工作原理、设计原理、设计原 则；其次根据已知原动机的转速, 分配传动比，选择合适的机构, 如蜗轮蜗杆机 构以及齿轮机构, 根据传动比确定它们的基本参数，设计计算几何尺寸,再次采 用图解法, 根据已知条件(极位夹角, 摇杆速度等)设计平面四杆机构, 然后在 实验室组建仿真机构模型, 观察所设计的尺寸是否满足所需的运动轨迹， 再就制 作台式电风扇摇头平面机构的计算机动态演示, 通过图解法研究各杆件的运动, 进行运动分析, 最后总结并讲述了电风扇的未来展望。 关键词： 平面摇杆机构，传动比, 蜗轮蜗杆, 齿轮传动, 运动分析 ,动态演 示 ii Abstract The des
3、ign of the shaking equipment of fans is the beginning of the design of electric fans, and it is the most important part of the electric fans design at home and abroad, there are many research results, but in this one innovation has not done enough and has yet to be further improved. In this paper, s
4、haking equipment on the history and development of electric fans and the status of its type and characteristics were first introduced, and then introduced the design for the proposed programming, and choose the best, mainly the existing fans installed in the plane shook his head rocker agencies, inc
5、luding Rocker plane the structure, working principle, design principles, design principles; Secondly choosing the appropriate agencies on the basis of known motive of the original speed, the distribution of transmission ratio, such as the worm gear worm agencies and institutions, according to the tr
6、ansmission ratio to determine their basic parameters, design and calculation geometry, again using graphic method, in accordance with the known conditions ( A-angle, rocker speed, etc.) designed plane four bodies, and then set up in the laboratory simulation model agencies to observe whether the size of the design to meet the required trajectory, and desktop fans on the production of the plane shook his head dynamic com
