摘要可编程序控制器（PLC）与变频器的使用在工业生产中变得越来越常见，在我国沿海的各大港口的散货集装码头卸船机的使用中，可编程序控制器与变频器的应用，具有广泛的应用价值。我们选取较为常见的桥式抓斗卸船机作为研究对象，本文简述了桥式抓斗卸船机的发展过程,行业内自动控制技术在桥式抓斗卸船机上的发展等内容。对桥式抓斗卸船机的电气控制部分进行系统的综述，包括可编程序控制器与变频技术的发展与应用，这次研究选用西门子系列的可编程序控制器并应用PC端的组态软件进行编程。系统的传动装置主要是变频器，利用变频器对小车抓斗的电机进行调速。46127
首先，介绍可编程序控制器与桥式抓斗卸船机的研究背景和各自的特点。
第二，对文本的整体框架进行构建并描述本次研究的基本内容，对桥式抓斗卸船机的整体机构进行分析。
第三，对本次研究的所使用的主要元器件进行详细的介绍，PLC的概念分类主要功能特点等，变频技术的发展、结构、分类、工作原理等，人机界面以及行程开关的结构概念等。
第四，对整体电气控制系统的设计以及程序仿真部分。
本次论文结合PLC变频器在桥式抓斗卸船机的应用的课题研究，提供了一种可行的电气控制系统设计方案并已经广泛应用于各大港口。
毕业论文关键词：可编程序控制器（PLC）；变频器；桥式抓斗卸船机；变频调速；人机界面；
ABSTRACT With the development of industrial information, the use of programmable controller and frequency converter is more and more widely in industry.The research object is the electrical control part is widely used in bridge type grab bulk container terminal in the ship unloader.This article not only describes the bridge grab ship unloader of the development process as well as automatic control technology in the machinery above and outlines the unloader technology is technological advances.Other components PLC and inverter, and so in this study used in the paper are also enumerated in detail, make a detailed introduction.The use of programmable logic controller Siemens S7-200 series produced by the company and use its configuration software on the PC side of the overall program design.The main device is the transmission, which the drive frequency adjustment to achieve the speed of the motor.Next, the main part of the thesis are introduced.Firstly, the research background and the programmable logic controller bridge grab ship unloader and their respective characteristics.Second, build the overall framework of the text and description of the basic contents of this study, the overall institutional bridge grab ship unloader for analysis.Third, the main components of this study used a detailed introduction to the concept of the structure of the PLC concept of classification and other main features, the development of inverter technology, structure, classification, and other works, man-machine interface and limit switches Wait.Fourth, the overall electrical control system design and simulation program part.The paper combines PLC inverter bridge grab ship unloader research applications, providing a viable electrical control system design, and has been widely used in major ports.
Keywords:PLC; Converter; Bridge type grab ship unloader; Frequency converter; HMI;
目 录
第一章 绪论 1
1.1 课题研究的背景 1
1.1.1 桥式抓斗卸船机简述 1
1.1.2 自控技术与变频技术在桥式卸船机上的应用 2
1.2 文本框架和研究的基本内容 3
1.2.1 研究的基本内容 3
1.2.2 文本框架 3
第二章 主要原器件的介绍与使用 5 PLC变频器在桥式抓斗卸船机上的应用+梯形图:http://www.751com.cn/zidonghua/lunwen_47785.html