PC构件自动化生产线堆垛机的设计及关键技术研究

发布时间：2018-05-05 09:28

本文选题：PC构件堆垛机 + PLC　；参考：《江苏科技大学》2017年硕士论文

【摘要】：目前,随着经济社会的快速发展,面对建筑业需求的快速增长,混凝土的生产将由传统、低效率制造向高效率、自动化方向演进。发达国家混凝土预制件的比例超过35%,甚至达到50%,由发达国家的建筑工业化进程经验可以看出,预制应力混凝土结构(PC构件)将是未来建筑工业化方向之一。本文以建筑工业化中的PC构件自动化生产线为技术背景,对PC构件堆垛机的技术特点和发展趋势进行了分析,调研了国内部分PC构件生产线的技术装备,通过对PC构件技术装备的比较,并且结合项目实际应用要求,对PC构件自动化生产线的重要装备之一堆垛机的机械结构和控制系统两大部分进行设计和研究。本文主要研究内容如下:首先,结合堆垛机的实际使用要求和功能原理,同时借鉴起重运输设备的设计资料,对PC构件堆垛机进行总体方案设计,随后由堆垛机的总体方案结构,进行部件结构的详细设计计算,同时借助三维建模设计软件solidworks进行模型建立。对于建立后的PC构件堆垛机的模型需要检验其主要受力部件的强度和刚度,运用有限元分析软件ANSYS WORKBENCH对其进行强度、刚度分析,对于PC构件堆垛机的设计结构进行静力学分析后还需要研究PC构件堆垛机的动态特性,随后对其进行模态分析和频率响应分析,分析结构在受到振动时的响应及各个部件的变形情况,进而对PC构件堆垛机的结构进行整体评估其优劣。然后,基于PLC控制对PC构件堆垛机的控制系统进行设计和研究,通过对PC构件堆垛机的工作原理及工作过程分析,设计堆垛机的控制作业流程图;通过对速度控制、定位控制和认址方式的分析,确定合适的控制方式,最后对主要控制系统硬件进行合理选择搭配。最后,运用ADAMS对堆垛机的虚拟样机进行运动学和动力学进行仿真分析研究,由堆垛机的动力学和运动学的仿真研究分析,得到堆垛机在实际使用中的受力和运动变化特点,为后续的相关设计研究提供可靠的依据。
[Abstract]:At present, with the rapid development of economy and society and the rapid growth of construction demand, the production of concrete will evolve from traditional, inefficient manufacturing to high efficiency and automation. The proportion of prefabricated concrete in developed countries is more than 35 or even 50. From the experience of industrialized construction in developed countries, it can be seen that precast stress concrete structure and PC members will be one of the directions of construction industrialization in the future. Based on the technology background of PC component automation production line in building industrialization, this paper analyzes the technical characteristics and development trend of PC component stacker, and investigates the technical equipment of some domestic PC component production lines. By comparing the technical equipment of PC components and combining with the practical application requirements of the project, the mechanical structure and control system of the stacker, one of the most important equipment in the PC component automation production line, are designed and studied. The main contents of this paper are as follows: first, combined with the actual use requirements and functional principles of the stacker crane, at the same time, using the design data of the crane transportation equipment for reference, the overall scheme design of the PC component stacker crane is carried out. Then the structure of the stacker is designed and calculated by the overall scheme structure of the stacker, and the model is built with the help of the 3D modeling and design software solidworks. The strength and stiffness of the main components of the PC stacker are tested by using the finite element analysis software ANSYS WORKBENCH, and the strength and stiffness of the PC stacker are analyzed by using the finite element analysis software ANSYS WORKBENCH. After the statics analysis of the design structure of the PC component stacker, it is necessary to study the dynamic characteristics of the PC component stacker, and then carry out modal analysis and frequency response analysis. The response of the structure to vibration and the deformation of each component are analyzed, and the structure of the PC component stacker is evaluated as a whole. Then, based on PLC control, the control system of PC component stacker is designed and studied. Through the analysis of the working principle and working process of PC component stacker, the control flow chart of the stacker is designed. The location control and address identification are analyzed, and the appropriate control mode is determined. Finally, the hardware of the main control system is reasonably selected and matched. Finally, the kinematics and dynamics of the virtual prototype of the stacker are analyzed by using ADAMS, and the dynamic and kinematic characteristics of the stacker are obtained by analyzing the dynamics and kinematics of the stacker. To provide a reliable basis for the subsequent related design research.
【学位授予单位】：江苏科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TH246;TU756

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