台式电风扇设计说明书解析.docVIP

毕 业 设 计 说 明 书 课 题 名 称 台式电风扇摇头装置及传动系统设计 分 院/专 业 机械工程学院/机械制造与自动化 班 级 机自1011 学 号 1001433130 学 生 姓 名 周航 指导教师： 龚晓群 2013年6月1日 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 Abstract Fanner shake head device design starts from the fan design, as well as the most important part of electric fan design for electric fan, has quite a few research results both at home and abroad, but in innovation that is not enough, it remains to be further improved. This article first to shake head to fanners history and development status and its types and characteristics are introduced, and then introduces the design principles, scheme is proposed, and select the optimal scheme, mainly existing fanner shake head device planar rocker mechanism, including planar rocker mechanism of structure, working principle, design principle, principle of design; Secondly, according to the known prime mover speed distribution of transmission ratio, select the appropriate institutions, such as worm and worm wheel mechanism, and gear mechanism, according to transmission ratio to determine the basic parameters, design and calculation geometry, again USES graphic method, according to the known conditions (extreme position Angle, rocker speed, etc.) design of planar four-bar linkage, in the laboratory and then set up simulation model of institutions, characterize the design size whether to meet the required trajectory, from creating desktop fan shook his head again computer dynamic demonstration of planar mechanism, by graphical method research of each bar movement, movem