高速同步带间歇传送动态性能及测试系统研究

发布时间：2018-01-24 02:19

本文关键词： 同步带间歇传送动态模型 Recurdyn LabVIEW 动态检测系统　出处：《陕西科技大学》2017年硕士论文　论文类型：学位论文

【摘要】：同步带传动机构用于传送场合,它的应用有利于简化传送系统的结构,实现系统轻量化、高速化和高精度化,并降低传送系统的硬件成本,因此被广泛应用于大距离、高精度定位以及被驱动件具有相当质量的场合。高速同步带间歇传送是同步带传动的延伸,由于间歇运动形式和物料传送需要,加大了带上负载的惯性力影响,以至于同步带传动原有的研究成果不能为高速同步带间歇传送的应用提供充足的理论支撑。同时由于现阶段检测技术的落后,测试方法相对不完善,因此建立适用于多场合的高速同步带间歇传送动态检测系统显得尤为必要。本文基于材料力学和多体系统动力学理论,建立了高速同步带间歇传送系统的动力学模型,并利用Recurdyn软件进行详细的动态仿真分析,同时借助LabVIEW软件,运用先进传感技术、无线数据传输技术及视觉检测技术,编写传送系统中关键参数的测试程序,通过理论与实验相结合,为高速同步带间歇传送系统的应用提供可靠的理论基础和实验依据。本文主要内容如下:首先,基于材料力学和多体系统动力学理论,结合传送过程中的受力及啮合多边形效应,建立带齿与轮齿间的摩擦模型,研究一对带齿与轮齿的啮合接触问题,同时基于轴向运动的粘弹性梁理论,研究变速度下动态系统的运动特性,并建立周期性载荷激励下带上相邻夹具间的振动平衡方程。其次,在理论模型的指导下,利用Recurdyn软件,建立高速同步带间歇传送系统动态仿真模型,分析系统位置精度及动态性能的影响因素,得到了带上不同带段在启动阶段、啮合阶段的动力学参数曲线。最后,在理论模型与仿真分析的基础上,设计动态检测系统的总体结构方案,以完成相关测试仪器选型,并基于LabVIEW软件实现测试系统人机交互界面的设计,编写输入、输出轴扭矩参数测试及角位移参数测试程序,夹具工位加速度参数测试及位置精度参数测试程序等,硬件和软件相结合,为高速同步带间歇传送系统的动态测试提供全面的技术支持。
[Abstract]:The synchronous belt transmission mechanism is used in the transmission field. Its application is helpful to simplify the structure of the transmission system, realize the system lightweight, high speed and high precision, and reduce the hardware cost of the transmission system. Therefore, it is widely used in long distance, high precision positioning and drive parts with considerable quality. High speed synchronous belt intermittent transmission is the extension of synchronous belt transmission, because of intermittent motion form and material transfer needs. The influence of inertial force on belt load is increased, so that the original research results of synchronous belt transmission can not provide sufficient theoretical support for the application of intermittent transmission of high-speed synchronous belt. At the same time, because of the backward detection technology at the present stage. The testing method is relatively imperfect, so it is necessary to establish a high speed synchronous belt intermittent transmission dynamic detection system suitable for many occasions. This paper is based on the theory of material mechanics and multi-body system dynamics. The dynamic model of the high-speed synchronous band intermittent transport system is established, and the detailed dynamic simulation analysis is carried out by using Recurdyn software. At the same time, the advanced sensing technology is used with the help of LabVIEW software. Wireless data transmission technology and visual detection technology, write the transmission system key parameters of the test program, through the combination of theory and experiment. The main contents of this paper are as follows: firstly, based on the theory of material mechanics and multi-body system dynamics. The friction model between teeth and gear teeth is established based on the force during transmission and the effect of meshing polygon. The meshing contact problem between two teeth is studied, and the viscoelastic beam theory based on axial motion is also presented. The motion characteristics of the dynamic system under variable velocity are studied, and the vibration balance equation between adjacent clamps under periodic load excitation is established. Secondly, under the guidance of theoretical model, Recurdyn software is used. The dynamic simulation model of high-speed synchronous band intermittent transmission system is established, and the influence factors of system position precision and dynamic performance are analyzed, and the dynamic parameters curves with different bands in start-up and meshing stage are obtained. Finally. Based on the theoretical model and simulation analysis, the overall structure of the dynamic testing system is designed to complete the selection of relevant test instruments. And based on LabVIEW software to realize the design of the man-machine interface of the test system, write the input, output shaft torque parameter test and angular displacement parameter testing program. The combination of hardware and software provides comprehensive technical support for dynamic testing of high-speed synchronous band intermittent transmission system.
【学位授予单位】：陕西科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TH132.32

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