摘要
通过建立托辊重力与成形力表达式推导正压力分布规律,构建输送带-托辊组有限元模型开展仿真分析,并验证理论与仿真结果有效性。结果表明:不同托辊组正压力差异显著,六边形托辊组正压力大于五边形,更显著大于槽型,下部托辊正压力最大;3/3型托辊布置正压力普遍高于6/0型;接触应力集中于托辊与输送带接触区域,六边形托辊组应力峰值最高,理论与仿真误差在可接受范围。研究明确了各因素对正压力和应力的影响,为过渡段托辊组优化设计提供理论依据。
This study aims to explore the distribution law of normal pressure for idler sets with different structures and the influence mechanism of idler arrangement forms.Specifically,the distribution law of normal pressure is derived by establishing expressions for idler gravity and forming force,a finite element model of the conveyor belt-idler set is constructed for simulation analysis,and the validity of the theoretical and simulation results is verified.The results show that the normal pressure varies significantly among different idler sets:the normal pressure of hexagonal idler sets is greater than that of pentagonal ones,and much higher than that of trough-shaped ones,with the maximum normal pressure occurring at the lower idlers;the normal pressure of the 3/3 type idler arrangement is generally higher than that of the 6/0 type;contact stress is concentrated in the contact area between idlers and the conveyor belt,and the hexagonal idler sets exhibit the highest stress peak.The error between the theoretical and simulation results is within an acceptable range.This study clarifies the influence of various factors on normal pressure and stress,providing a theoretical basis for the optimal design of idler sets in the transition section.
作者
田丽洁
贾祥辉
曹哲
TIAN Lijie;JIA Xianghui;CAO Zhe(China Electric Power Planning&Engineering Institute,Beijing 100120,China;Libo Heavy Industry Scicncc and Technology Co.,Ltd.,Taian 271099,China;Shandong University of Science and Technology,Qingdao 266590,China)
出处
《电力勘测设计》
2025年第S2期148-154,共7页
Electric Power Survey & Design
关键词
管状带式输送机
过渡段
有限元分析
pipe belt conveyor
transition section
finite element analysis
