本文關(guān)鍵詞： 提升機(jī)電控 雙PLC 安全回路 觸摸屏　出處：《安徽理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：礦井提升機(jī)主要負(fù)責(zé)礦物質(zhì)、人員和物資的運(yùn)送,在煤礦的生產(chǎn)中起著重要的作用。為了使煤礦企業(yè)的生產(chǎn)不受到影響,礦井提升機(jī)需要在礦井中高速往復(fù)運(yùn)行。如果提升機(jī)在運(yùn)行中出現(xiàn)故障,輕則設(shè)備損壞、生產(chǎn)停止,重則人員傷亡。故礦井提升機(jī)系統(tǒng)需滿足生產(chǎn)效率高、安全可靠和自動(dòng)化控制的運(yùn)行要求。 本文針對(duì)同煤集團(tuán)某礦副井提升機(jī)電控系統(tǒng)升級(jí)改造的項(xiàng)目,制定了礦井提升機(jī)電控系統(tǒng)方案。該項(xiàng)目主要完成了提升機(jī)電控系統(tǒng)的硬件選型,電路和軟件程序的設(shè)計(jì)。 根據(jù)礦井提升機(jī)的運(yùn)行特性,電控系統(tǒng)的變頻調(diào)速系統(tǒng)由工控機(jī)監(jiān)控。電控系統(tǒng)主要由變頻調(diào)速系統(tǒng)、下位機(jī)(PLC),上位機(jī)(觸摸屏)組成。 電控系統(tǒng)采用雙線制PLC對(duì)提升機(jī)進(jìn)行控制。PLC選用的是西門子S7-300系列。軟件靈活、硬件簡(jiǎn)潔、維護(hù)量小。一套PLC作為主控系統(tǒng)；另一套作為監(jiān)測(cè)系統(tǒng),檢測(cè)提升機(jī)系統(tǒng)的各種故障,并將故障事件傳往觸摸屏。PLC間互為備用,以保證提升機(jī)無(wú)間斷地進(jìn)行運(yùn)行。電控系統(tǒng)減少了繼電器和控制線的使用,提高了系統(tǒng)的可靠性和穩(wěn)定性。 電氣拖動(dòng)單元使用的是風(fēng)光高壓四象限變頻技術(shù)。該變頻器以IGBT為主控器件,以DSP為控制核心,采用矢量調(diào)速控制技術(shù)。只要通過(guò)PLC給出對(duì)變頻器的控制命令,提升機(jī)就可以按著預(yù)先設(shè)計(jì)的速度曲線運(yùn)行。 電控系統(tǒng)用EasyBuilder8000對(duì)威綸MT8121IE觸摸屏進(jìn)行組態(tài)。觸摸屏對(duì)提升機(jī)的運(yùn)行狀態(tài)進(jìn)行實(shí)時(shí)的監(jiān)控。若故障發(fā)生,觸摸屏?xí)涗洷４婀收鲜鹿是野l(fā)出蜂鳴警告。 為了保障提升機(jī)的安全運(yùn)行,本文設(shè)計(jì)了軟、硬兩套安全回路。安全回路間相互獨(dú)立,為斷軸、錯(cuò)向、制動(dòng)油壓過(guò)高、上下過(guò)卷、高壓斷路、編碼器異常、閘瓦磨損、松繩等故障提供安全保護(hù)。若安全回路中的故障事件一旦發(fā)生,安全回路會(huì)立即斷開(kāi),而后提升機(jī)立即執(zhí)行一級(jí)或二級(jí)制動(dòng)。
[Abstract]:Mine hoists are mainly responsible for the transportation of minerals, personnel and materials, and play an important role in the production of coal mines. The mine hoist needs to run at high speed in the mine. If the hoist fails in operation, the equipment will be damaged, the production will be stopped, and the heavy person will be killed and injured. Therefore, the mine hoist system should meet the high production efficiency. Operational requirements for safe, reliable and automatic control. Aiming at the project of upgrading and transforming the electric control system of auxiliary shaft hoist in Tongshan Coal Group, a scheme of mine hoist electronic control system is established. The project mainly completes the hardware selection, circuit design and software program design of the hoist electronic control system. According to the operation characteristics of mine hoist, the frequency conversion speed control system of the electronic control system is monitored by the industrial control computer, which is mainly composed of the frequency conversion speed regulation system, the lower computer and the upper computer (touch screen). The electric control system adopts two-wire PLC to control the hoist. The Siemens S7-300 series is selected. The software is flexible, the hardware is simple and the maintenance is small. One set of PLC is used as the main control system and the other as the monitoring system. Detect all kinds of faults of hoist system, and pass the fault events to touch screen. PLC for each other, to ensure the hoist runs uninterruptedly. The electric control system reduces the use of relay and control line. The reliability and stability of the system are improved. The electric drive unit uses four quadrant frequency conversion technology of wind and high voltage. The frequency converter takes IGBT as the main control device, DSP as the control core, and vector speed control technology. As long as the control command of the converter is given through PLC, The hoist can run on a pre-designed speed curve. The electronic control system uses EasyBuilder8000 to configure the MT8121IE touch screen. The touch screen monitors the running state of the hoist in real time. If the fault occurs, the touch screen will record the trouble and issue a buzzer warning. In order to ensure the safe operation of hoist, this paper designs two sets of safety circuits, soft and hard. The safety circuits are independent of each other, which are broken shaft, wrong direction, high braking oil pressure, overwinding up and down, high pressure open circuit, abnormal encoder, brake shoe wear, etc. Loose rope and other faults provide safety protection. If a fault event occurs in the safety loop, the safety loop will be disconnected immediately, and the hoist will immediately carry out the first or second stage braking.
【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TD633

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 閆兵;;基于冗余技術(shù)提高礦井提升機(jī)可靠性的技術(shù)措施[J];電氣自動(dòng)化;2008年06期

2 趙金玉;賀玉霞;;PLC在泄洪閘啟閉系統(tǒng)中的應(yīng)用[J];河南水利與南水北調(diào);2010年09期

3 郭守寬;鄧忠華;;工控機(jī)模擬基于MPI協(xié)議的人機(jī)界面與PLC通信[J];計(jì)算機(jī)與數(shù)字工程;2012年01期

4 孫文志;;雙PLC在礦井提升機(jī)變頻改造中的應(yīng)用[J];機(jī)械與電子;2008年07期

5 魯坤敏;張波;潘靜;;礦井提升機(jī)提升狀態(tài)監(jiān)控系統(tǒng)的研究[J];遼寧工業(yè)大學(xué)學(xué)報(bào)(自然科學(xué)版);2012年02期

6 董未來(lái);陳尤龍;;提升系統(tǒng)總變位質(zhì)量的分析及測(cè)定[J];煤礦機(jī)電;2010年01期

7 劉雨剛;劉蘭蘭;付貴祥;喬磊明;;PLC在礦用提升機(jī)控制系統(tǒng)中的應(yīng)用[J];煤炭工程;2007年07期

8 劉永亮;時(shí)永玲;孔憲勇;;礦井提升機(jī)電控系統(tǒng)的現(xiàn)狀與發(fā)展趨勢(shì)[J];科技傳播;2012年17期

9 倪文婧;;礦井提升機(jī)遠(yuǎn)程監(jiān)控及故障診斷系統(tǒng)設(shè)計(jì)[J];煤炭科學(xué)技術(shù);2013年02期

10 史世杰;張根現(xiàn);馬星河;;新型高性能提升機(jī)智能電液制動(dòng)系統(tǒng)的研究[J];煤礦機(jī)電;2011年05期

，

本文編號(hào)：1500709