台式风扇摇头装置设计说明书.pdfVIP

本科毕业设计（论文）通过答辩 摘 要 经过电动机的运转，所有动力都来源于电动机，再经过一 对锥齿轮机构的传动，实现减速将动力传动给摇头机构。由 于蜗杆蜗轮啮合齿轮间的相对滑动速度较大,摩擦磨损大,传 动效率较低,常需要用较贵的减磨耐磨材料来制造蜗轮,制造 精度要求高，成本高。锥齿轮可以用来传递两相交的运动， 相比蜗杆蜗轮成本较低。所以在此我们选用锥齿轮减速；由 曲柄摇杆机构实现左右摇头运动。要实现扇头的左右摇摆运 动有很多种运动方式可以选择,例如,滑块机构齿轮机构等. 但四杆机构更容易制造,制造精度要求也不是很高,并且四杆 机构能实现摆幅也更广更容易实现,最重要的是它的制造成 本比较低.所以首选四杆机构。 本设计方案最大的特点是它采用一对锥齿轮机构实现运动 的改变和减速作用。采用追齿轮机构传动可使扇头结构紧凑， 有确定的 传动比等优点。其次，采用滑销离合器实现是否 摇头的控制，结构比较简单，使用方便，经济又实惠。同时， 采用曲柄摇杆机构实现扇头的左右摇摆，可以实现较大范围 的摆动。制作起来经济且精度也要求不是很高便于制造。 关键词：摇头 齿轮曲 柄摇杆 本科毕业设计（论文）通过答辩 Abstract After the motor running, all the power is derived from the motor, and then through a pair of bevel gear mechanism of the drive to achieve slowdown will power transmission to the body shaking his head. As the worm Worm Gear relative sliding velocity between the large, friction and wear large, the transmission efficiency is low, and often need to use expensive anti-friction wear-resistant materials to create a worm, manufacturing, high precision and high costs. Bevel gears can be used to pass the intersection of the two campaigns, compared with Worm Worm low cost. So, here we use bevel gear reducer by a crank and rocker mechanism to achieve around shaking his head movement. To achieve the fan head swings back and forth movement there are many ways to exercise choice, for example, slider gear institutions. But the four-bar linkage is more easy to manufacture, manufacture of precision is not very high, and the four-bar linkage to achieve swing is also broader more easily achieved, the most important is its manufacturing cost is relatively low. Therefore, the preferred four-bar linkage. The greatest feature of this design is that it uses a pair of bevel gears to achieve the role of the movement to change and slow.Make use of fan-drive gear mechanism to recover the first compact, has a definite transmission ra