基于Recurdyn的输送带横向振动特性  

Transverse vibration characteristics of conveyer belts based on Recurdyn

作　　者：周广林 韩忠惠 郭延超 Zhou Guanglin;Han Zhonghui;Guo Yanchao(School of Mechanical Engineering,Heilongjiang University of Science&Technology,Harbin 150022,China)

机构地区：[1]黑龙江科技大学机械工程学院,哈尔滨150022

出　　处：《黑龙江科技大学学报》2018年第6期649-654,共6页Journal of Heilongjiang University of Science And Technology

摘　　要：为避免输送带发生跑偏或引起机架共振,通过分析输送带在张力作用下微元受力状况,推导出横向振动方程,基于Recurdyn仿真软件仿真了带式输送机启动阶段与平稳运行阶段输送带横向振动特性,应用FFT求出输送带中间位置横向振动位移幅值频谱,分析托辊间距对横向振动的影响,通过分形盒维数定量研究输送带横向振动的系统稳定性。结果表明:带式输送机承载段中间位置横向振动最为剧烈,横向振动波动最大,故需提高设计的安全系数;承载段托辊间距较小时,对带式输送机输送带横向振动影响较大的频率较小;适当增大承载段托辊间距,能够降低输送带横向振动程度。该研究对提高带式输送机的性能具有一定的方法借鉴。This paper is aimed at avoiding the deviation of conveyor belt and resonance of conveyor frame.The study consists of deriving the transverse vibration equation by analyzing the force condition of the micro element under the action of tension;simulating the transverse vibration characteristics of belt conveyor in start-up stage and smooth operation stage based on Recurdyn simulation software;obtaining the transverse vibration displacement amplitude spectrum of the middle position of the conveyor belt using Fast Fourier Transform;investigating the influence of the spacing of the roller on the transverse vibration;and quantitatively studying the system stability of conveyor belts transverse vibration by applying fractal box dimension.The results show that there arises a need for an increased design safety factor in response to the maximum transverse vibration of the middle position of the belt conveyor and the maximum transverse vibration fluctuation;a relatively small distance between the bearing rollers means a smaller frequency of greater influence on the transverse vibration of belt conveyor;and the proper increase in the distance between the bearing rollers provides a reduction in transverse vibration of the conveyor belt.This research could provide a certain reference for improving the performance of belt conveyor.

关 键 词：带式输送机 输送带 横向振动 托辊间距 

分 类 号：TD528.1[矿业工程—矿山机电]