基于PLC的皮带运输监控系统设计

摘 要

本系统是要求对皮带运输机进行监控设计，那么我就以输送煤为例子。 输煤皮带控制系统的设计是一个很传统的课题，现在随着各种先进精确的诸多控制仪器的出现，输煤皮带控制的设计方案也越来越先进，越来越趋于完美，各种参考文献也数不胜数。该系统用三菱FX2N系列可编程序控制器（PLC）作为控制核心，整个系统采用了一台PLC控制4台皮带机，整个控制系统设一个控制室。利用PLC控制皮带输煤机，实现了逆序启动、顺序停止、故障停止、紧急停止的功能，并且有手动控制和自动控制两种控制方式，从而实现了输煤系统的自动化功能。

PLC由于采用现代大规模集成电路技术，采用严格的生产工艺制造，内部电路采取了先进的抗干扰技术，具有很高的可靠性。此外，PLC带有硬件故障自我检测功能，出现故障时可及时发出警报信息。在应用软件中，应用者还可以编入外围器件的故障自诊断程序。

关键字：可编程序控制器，皮带输送机，自动化

I

河南城建学院本科毕业设计（论文） Abstract

Abstract

This system is the requirements of monitoring design of belt conveyor, then I have to transport coal as examples.

Design of belt conveyor control system is a very traditional subject, now with many control instruments of various advanced precise appearance, design of belt conveyor control is also more and more advanced, more and more perfect, various references is also beyond count. The system uses Mitsubishi FX2N series programmable controller (PLC) as the control core, the system uses a PLC control 4 belt machine, the whole control system sets up a control room. Use PLC to control the belt conveyer, realizes the reverse start, stop, failure to stop order, emergency stop function, and a manual control and automatic control two control mode, so as to realize the automatic function of the coal handling system.

PLC due to the use of modern large scale integrated circuit technology, used the strict production craft manufacture, the internal circuit has adopted the advanced anti-jamming technology, with high reliability. In addition, self - detection function with PLC hardware failures, failure to issue timely warning information. In the application software, users can also fault self diagnosis program of peripheral devices.

Keywords: programmable controller, belt conveyor, automation

II

河南城建学院本科毕业设计（论文） 目录

目录

摘 要 ................................................................................................................................. I Abstract ............................................................................................................................. II 1绪论 ............................................................................................................................... 1 1.1 国内外皮带运输机的研究现状 ........................................................................... 1 1.2 课题的研究目的 ................................................................................................... 1 1.3系统控制要求 ........................................................................................................ 2 1.4 研究内容 ............................................................................................................... 2 2总体方案设计 ............................................................................................................... 4 2.1皮带运输机 ............................................................................................................ 4 2.1.1 皮带运输机的结构 ........................................................................................ 4 2.1.2皮带运输机的调试 ......................................................................................... 4 2.1.3传送带常见故障 ............................................................................................. 5 2.1.4 传送带跑偏 .................................................................................................... 5 2.1.5四级传送带视图分析 ..................................................................................... 6 2.2 控制方案 ............................................................................................................... 7 2.2.1选择 PLC的依据 ........................................................................................... 7 2.2.2 PLC的工作原理 ............................................................................................. 8 2.3系统设计基本步骤 ................................................................................................ 9 3硬件分析 ..................................................................................................................... 12 3.1系统设备的选型 .................................................................................................. 12 3.1.1 PLC选型 ..................................................................................................... 12 3.1.2电动机选型 ................................................................................................... 13 3.1.3其他设备的选型 ........................................................................................... 14 3.2接线图 .................................................................................................................. 18 3.2.1电机接线图 ................................................................................................... 18 3.2.2 PLC接线图 ................................................................................................... 18 4软件分析及仿真 ......................................................................................................... 20 4.1梯形图程序分析 .................................................................................................. 20 4.1.1运煤皮带机循环自动启动程序分析 ........................................................... 20 4.1.2运煤皮带机循环自动停止程序分析 ........................................................... 21 4.1.3运煤皮带机单动启动与停止程序分析 ....................................................... 22 4.1.4运煤皮带机故障停止程序分析 ................................................................... 23 4.2软件仿真 .............................................................................................................. 25 4.2.1启动停止仿真 ............................................................................................... 25 4.2.2故障报警灯亮起仿真 ................................................................................... 26 4.3系统整体运行概述 .............................................................................................. 26 结束语 ............................................................................................................................ 28 参考文献 ........................................................................................................................ 29 致 谢 .............................................................................................................................. 30

河南城建学院本科毕业设计（论文） 目录

附录A 系统程序梯形图 ............................................................................................. 31