機(jī)電專業(yè)畢業(yè)設(shè)計(jì)-基于PLC的傳送帶控制系統(tǒng)設(shè)計(jì)



基于PLC的傳送帶的控制系統(tǒng)設(shè)計(jì)
摘 要
介紹了PLC在四節(jié)傳送帶控制系統(tǒng)中的應(yīng)用，同時(shí)也詳細(xì)地?cái)⑹隽讼到y(tǒng)中相關(guān)控制項(xiàng)目的設(shè)計(jì)方案及具體實(shí)現(xiàn)方法。文中還介紹了基于PLC與單片機(jī)的區(qū)別使我們能更加的清楚認(rèn)識(shí)PLC，對(duì)學(xué)生熟悉PLC控制系統(tǒng)的結(jié)構(gòu)和工作原理以及學(xué)習(xí)梯形圖的編寫(xiě)都有很大的幫助。
 本系統(tǒng)是對(duì)四節(jié)傳送帶控制的系統(tǒng)，該設(shè)備適用于流水線生產(chǎn)等，也可以把生產(chǎn)出的貨物進(jìn)行傳送到特定的地方。
高可靠性是電氣控制設(shè)備的關(guān)鍵性能。PLC由于采用現(xiàn)代大規(guī)模集成電路技術(shù)，采用嚴(yán)格的生產(chǎn)工藝制造，內(nèi)部電路采取了先進(jìn)的抗干擾技術(shù)，具有很高的可靠性。從PLC的機(jī)外電路來(lái)說(shuō)，使用PLC構(gòu)成控制系統(tǒng)，和同等規(guī)模的繼電接觸器系統(tǒng)相比，電氣接線及開(kāi)關(guān)接點(diǎn)已減少到數(shù)百甚至數(shù)千分之一，故障也就大大降低。此外，PLC帶有硬件故障自我檢測(cè)功能，出現(xiàn)故障時(shí)可及時(shí)發(fā)出警報(bào)信息。在應(yīng)用軟件中，應(yīng)用者還可以編入外圍器件的故障自診斷程序，使系統(tǒng)中除PLC以外的電路及設(shè)備也獲得故障自診斷保護(hù)。
關(guān)鍵詞：傳送帶   PLC 故診斷控制　　可編程控制器  控制

Four conveyer belts simulation control
Abstract
Introduced PLC in four conveyer belts control system application, simultaneously also in detail narrated in the system to be connected the control project design proposal and the concrete realization method. In the article also introduced enables us based on PLC and the monolithic integrated circuit difference even more clearly to know PLC, is familiar with the PLC control system to the student the structure and the principle of work as well as the study trapezoidal chart compilation all has the very big help.
This system is a system which controls to four conveyer belts, this equipment is suitable for the production-runs and so on, also may the cargo which produces carry on transmits to the specific place.
The redundant reliability is the electricity control device essential performance. PLC because uses the modern large scale integrated circuit technology, used the strict production craft manufacture, the internal circuit has adopted the advanced antijamming technology, had the very high reliability. Machine the external circuit said from PLC that, uses the PLC constitution control system, compares with the same level scale relay system, the electrical wiring and the switch contact reduced to several hundred even several 1/1,000, the breakdown also greatly reduces. In addition, PLC has the hardware breakdown self-examination function, appears when the breakdown may promptly send out the warning information. In the application software, the application also may enroll the periphery component the breakdown from the diagnostic program, causes in the system also obtains the breakdown besides the PLC electric circuit and the equipment from the diagnosis protection
Key word:    Control          Programmable  controller
 
目錄
摘要…………………………………………………………………………………… ………Ⅰ
Abstract…………………………………………………………………………………… ….Ⅱ
目錄…………………………………………….……………………………………………….Ⅲ
引言…………………………………………………………………….………………………..1
第一章 可編程控制器的概述…………………………………………….……………………2
1.1 可編程邏輯控制器（PLC）………………………………………….……………………2
1.2 可編程邏輯控制器（PLC）的產(chǎn)生………………………………….……………………2
1.3 可編程邏輯控制器的特點(diǎn)……………………………………………..…………………..3
1.4 可編程邏輯控制器的分類………………………………………………..………………..5
1.5 可編程邏輯控制器的的發(fā)展………………………………………………..……………..6
1.5.1國(guó)外的PLC的發(fā)展…………………………………………………..…………….6
1.5.2國(guó)內(nèi)的PLC的發(fā)展…………………………………………………..…………….7
1.5.3 PLC的展望……………………………………………………………...………….7
第二章 可編程控制器的結(jié)構(gòu)和原理……………………………………………….…………8
2.1 可編程控制器的基本結(jié)構(gòu)………………………………………………………...……….8
2.2 可編程控制器的編程語(yǔ)言…………………………………………………………..……..9
第三章 PLC與繼電器，單片機(jī)的異同………………………………………………………12
3.1 什么是PLC………………………………………………………………………………..12
3.2  PLC與單片機(jī)的區(qū)別…………………………………………………………………….12
3.3 PLC與繼電器系統(tǒng)的異同…………………………………………………………...…….12
3.4 PLC系統(tǒng)的設(shè)計(jì)……………………………………………………………………...…….13
   3.4.1 PLC的選型原則………………………………………………………………..…….13
   3.4.2 可編程順序控制器的設(shè)計(jì)流程…………………………………………….……….14
3.5 PLC的自動(dòng)檢測(cè)功能及故障診斷………………………………………………..………..15
   3.5.1 超時(shí)檢測(cè)………………………………………………………………….………….15
   3.5.2 邏輯錯(cuò)誤檢查………………………………………………………….…………….16
第四章  傳送帶的介紹……………………………………………………….……………….17
  4.1 傳送帶常見(jiàn)的故障由與維護(hù)……………………………………….…………………..17
     4.1.1 傳送帶常見(jiàn)的故障………………………………………………………………..17
     4.1.2 傳送帶跑偏………………………………………………………………………..17
 4.2 四級(jí)傳送帶的設(shè)計(jì)………………………………………………………………………18
    4.2.1 四級(jí)傳送帶的控制要求………………………………….………………………..18
    4.2.2 四級(jí)傳送帶的視圖……………………………………..………………………….19
    4.2.3 輸入、輸出分配表…………………………………….…………………………..20
    4.2.4 電動(dòng)機(jī)接線圖………………………………………….…………………………..20
    4.2.5 PLC接線圖…………………………………………...…………………………….21
    4.2.6 控制面板……………………………………………...……………………………21
    4.2.7 程序梯形圖…………………………………………..…………………………….22
總結(jié)……………………………………………………………….……………………………..27
參考文獻(xiàn)…………………………………………………………………………………………1
致謝………………………………………………………………………………………………2
附錄………………………………………………………...…………………………………….3