基于离散单元法的自移式破碎站铲斗卸料冲击分析

摘要

研究自移式破碎站在作业过程中物料从铲斗下落时对料斗和板式给料机的冲击,并准确计算其冲击力,根据离散元方法,采用离散元分析软件 EDEM,通过建立与实际作业条件相似的物料-铲斗-受料斗-输送机的离散元模型,对物料下落及碰撞过程进行动态仿真,从而得到料斗的受力发布,为设计人员对料斗的结构设计提供理论指导。%Based on discrete element method and by using EDEM (a discrete element analysis software),the impact on the mobile crushing station hopper and conveyor in process of the material falling from the bucket is studied,and the impact force is calculated.After establishing the material-bucket-hopper-conveyor discrete element model,the discharge process is dynamic simulated,then the stress distribution of hopper is calculated.This research can provide theoretical guidance for the hopper’s design.