带式输送机输送带的动态仿真及驱动滚筒的有限元分析

发布时间：2018-01-30 02:07

本文关键词： 带式输送机驱动滚筒输送带有限元 ANSYS AMESim仿真　出处：《太原理工大学》2011年硕士论文　论文类型：学位论文

【摘要】：带式输送机作为现代散装物料运输的重要工具之一,近年来越来越向着长距离、高速度、大运量的方向发展。传统的设计方法已经无法满足现代带式输送机发展的需要,随着电子科学技术的发展,现代设计方法中的CAD与CAE技术已经越来越广泛地应用在输送机的设计中,它大大缩短了设计周期、提高了设计质量、减少了设计费用。为此,本文借助现代设计方法中的CAE技术对带式输送机的一些关键技术做了分析研究。首先通过对带式输送机动态分析设计理论的分析,建立了带式输送机输送带的数学模型。然后利用AMESIM软件建立了带式输送机动态仿真模型,对满载可控启动工况下的带式输送机进行了动态仿真。通过仿真,得出了靠近驱动滚筒机头输送带与机尾输送带处的张力变化规律、速度变化规律、加速度变化规律以及张紧装置的位移变化规律。结果表明,驱动端输送带的动张力最大,在整个输送带上是最为危险的区域。通过对不同的启动时间F输送带的动态特性进行分析对比,发现输送带的动态特性随着启动时间的增长的非线性变化规律,为输送机的动力学分析提供了一种比较直观与简便的方法。对驱动滚筒与缠绕在其上的一段输送带进行理论受力与变形分析,然后运用ANSYS软件建立驱动滚筒与输送带摩擦接触的三维模型,并对其进行有限元分析。首先介绍了有限元法的基本理论和ANSYS软件分析的全过程；在ANSYS环境中,改进以往的建模方式,建立了输送带和驱动滚筒摩擦接触的三维模型,使输送带在运转以前就具有较正确的张力。最后通过分析ANSYS分析结果,得出了驱动端输送带和驱动滚筒上筒壳、辐板、轴等主要零部件的受力云图以及变形图,能够解决带式输送机驱动滚筒设计过程中的一些实际问题,并为以后滚筒的进一步优化设计提供了新的模型和方法。
[Abstract]:Belt conveyor, as one of the important tools of modern bulk material transportation, is becoming more and more long distance and high speed in recent years. Traditional design methods can not meet the needs of the development of modern belt conveyor, with the development of electronic science and technology. CAD and CAE technology in modern design methods have been more and more widely used in the design of conveyors, which greatly shorten the design cycle, improve the design quality and reduce the design cost. In this paper, some key technologies of belt conveyor are analyzed and studied with the help of CAE technology in modern design method. Firstly, through the analysis of the dynamic analysis and design theory of belt conveyor, the mathematical model of belt conveyor belt is established, and then the dynamic simulation model of belt conveyor is established by using AMESIM software. The dynamic simulation of belt conveyor under the condition of full load controllable start-up is carried out. Through simulation, the law of tension and speed change near the belt of the head of driving roller and the belt of tail are obtained. The results show that the dynamic tension of the conveyor belt at the driving end is the largest. It is the most dangerous area on the whole conveyor belt. By analyzing and comparing the dynamic characteristics of F conveyor belt with different start-up time, it is found that the dynamic characteristics of conveyor belt change with the increase of start-up time. It provides a simple and convenient method for dynamic analysis of conveyer. The theoretical force and deformation of the driving drum and the conveyor belt wound on it are analyzed, and then the three-dimensional model of friction contact between the driving drum and the conveyor belt is established by using ANSYS software. Firstly, the basic theory of finite element method and the whole process of ANSYS software analysis are introduced. In the environment of ANSYS, the three-dimension model of the belt and the friction contact of the driving drum is established by improving the previous modeling method. The conveyor belt has the correct tension before running. Finally, by analyzing the results of ANSYS analysis, the driving end conveyor belt and the upper cylinder shell and radial plate of the driving roller are obtained. The mechanical cloud diagram and deformation diagram of the main parts such as shaft can solve some practical problems in the design process of belt conveyor driving drum and provide a new model and method for the further optimization design of the drum in the future.
【学位授予单位】：太原理工大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH222

【引证文献】