毕业设计(论文)-振动筛设计.pdf

摘 要 对双轴直线振动筛进行分析，从整体布局到个别零件的选用都进行了设计，包括筛 箱，筛面的设计和固定，激振器的形状，支撑方案等等，还包括轴、偏心块等零件的设 计。采用双电机带动使得两个轴上的偏心块同步，另一方面采用了座式结构，淘汰了以 往悬挂式的方式，使得结构更加安全，占地面积更小。 本产品为生产能力为 85.5t/h 的中型振动筛， 对于筛框的材料有比较高的要求， 现采 用高强度和高冲击韧性的钢材， 不仅仅提高了筛框的耐用度， 还减轻了整个结构的重量， 对弹簧的选则等许多方面也带来了很多的方便。 设计中还包括对连接和固定件的选用，采用十字轴联轴器和轮胎联轴器。并用螺栓 连接代替焊接，减小了焊接时应力对它的影响。 关键词 ：振动筛； 激振器； 偏心块； 横梁 I Abstract This article is carried out mainly according to the design of the two axle vibrating separators of straight line, from overall layout go to individual element choose to go on improving , include sifting the design of case and compass screen surface and the regular shape of vibrator , support the design of scheme and so on , still include the design of the elements such as axle and partial piece. Drive with double generator, positive drive makes two partial pieces synchronous , has adopted on the other hand to use type structure, have superseded the way of former overhead suspension, make structure more safe, it is less to cover an area of area. This design product has higher requirement, for the material of screen frame for productivity is the large scale vibrating separator of 80 t/h, has now not only raised the durability of screen frame with the high-strength and high steel material of impact tenacity, have still alleviated the weight of entire structure, for spring choose to have also brought many conveniences. In design still include for connection and regular choosing, with the durable shaft coupling of