一、前言振动筛在选矿、选煤工业中广泛应用,是生产中的主要设备,因此,振动筛运转情况和工作效率直接影响整个生产正常进行。ZKB3675振动筛是目前国内设计、生产的最大直线振动筛,工作频率高,筛面跨度大,技术难度较大。目前在工业试验中出现了一些强度问题。因此,我们利用结构有限单元法对强度进行了探索。有限单元法是分析各种结构问题的强有力工具。不论结构的几何形状和支承条件多么复杂,不论材料性质和外加载荷如何多变,使用有限单元法处理,均能获得满意的结果。因此,它是现代设计的重要 I. Introduction Vibrating screen is widely used in mineral processing and coal preparation industry and is the main equipment in the production. Therefore, the operation of vibrating screen and working efficiency have a direct impact on the normal production of the whole production. ZKB3675 Vibrating Screen is currently the largest linear vibrating screen designed and manufactured in China. It has high working frequency, large screen span and high technical difficulty. There have been some strength issues in industrial tests. Therefore, we use the structural finite element method to explore the intensity. The finite element method is a powerful tool for analyzing various structural problems. Regardless of the complexity of the geometry and bearing conditions of the structure, satisfactory results can be obtained, regardless of the material properties and how the applied load varies, using finite element methods. Therefore, it is important for modern design