宽筛面强迫同步直线振动筛强度分析及优化本科生毕业论文.docVIP

硕 士 学 位 论 文 The strength analysis and optimization of Wide-deck and constrained synchronizing straight line vibrating screen Dissertation Submitted to Hebei United University in partial fulfillment of the requirement for the degree of Master of Engineering by Wang Mingheng (Mechanical Engineering) Supervisor: Professor Cheng Xiangwen Xu Chunjiang March, 2015 摘　　要 以ZK3648-SH振动筛研究对象，底梁断裂ANSYS有限元分与析软件分析研究振动筛。 文章对需要研究振动筛的参数提前设计与选择，基于振动筛基本工作原理，分析并研究筛面上振动筛力力学与物料运动学，建立振动筛的力学模型；其次用三维设计软件Creo建立三维模型，导入基于有限元法的ANSYS软件对大型直线振动筛进行静力学、模态、时间历程响应分析，与试验模态分析相结合，优化结构，确保振动筛能正常工作。最后，由于一些大型直线振动筛普遍表现出较低的使用寿命，需要预测振动筛核心位置疲劳寿命，作为设计、安装以及应用振动筛所需的参考。 采用有限元分析和实验模态分析等动态设计方法，为解决振动筛强度问题提供了一种新的结构改进方案，对振动筛的设计和制造具有指导意义。 图幅；表 个；参 篇。 关键词： 分类号： Abstract In the field of the coal, vibrating screen has a very wide range of applications, as an important part of material processing machinery, with washing, dewatering, classification, medium and other functions. There are many different kinds of vibrating screen and straight vibrating screen production efficiency is better, not only can get better classification effect, and its efficiency is higher, and easy maintenance. Vibrating screen dynamic characteristics, and can be having a direct effect on its working efficiency and service life. Therefore, it is necessary for vibrating screen and the in-depth study of the dynamic behavior of the, and carries on the structure of the optimization, maximum efficacy into play, it enhances the working efficiency of the coal operation. In ZK3648-SH shaker for the study, for domestic shaker base beams were more prone to fracture, the relatively short life of these two significant problems from different angles statics and dynamics, finite element analysis using ANSYS software analysis and research of the shaker. Papers selected shaker design and related parameters studied, and the shaker works analyzed using knowledge movement mechanics noted movement on the vibrating screen material, and its depth and detai