摘要
軋機(jī)是鋼鐵企業(yè)中的重要設(shè)備，其在運(yùn)行中受到重載、沖擊等負(fù)荷作用，出現(xiàn)了一些用靜力學(xué)難以解釋的重大設(shè)備事故。為了保障設(shè)備安全運(yùn)行、預(yù)防事故發(fā)生以及實(shí)現(xiàn)設(shè)備預(yù)知維修，建設(shè)一套功能完善、可靠性好的狀態(tài)監(jiān)測系統(tǒng)是十分必要的。目前，國內(nèi)監(jiān)測系統(tǒng)類型眾多，且大多是采用在工控機(jī)內(nèi)插上數(shù)據(jù)采集卡的方式來實(shí)現(xiàn)。工控機(jī)置于控制而且遠(yuǎn)離現(xiàn)場，傳感器和執(zhí)行器的信號都是直接連接到工控機(jī)上，從而導(dǎo)致了模擬信號傳輸線路較長且布線復(fù)雜，抗干擾能力有待進(jìn)一步提高。
本文對以下兩個(gè)部分進(jìn)行了研究。第一部分是狀態(tài)監(jiān)測系統(tǒng)的整體方案設(shè)計(jì)。
在這一部分中，確立了軋機(jī)傳動實(shí)驗(yàn)臺機(jī)組監(jiān)測點(diǎn)及監(jiān)測內(nèi)容，包括電參數(shù)、振動參數(shù)、溫度、轉(zhuǎn)速、力能參數(shù)、位移參數(shù);比較了現(xiàn)行的監(jiān)測體系結(jié)構(gòu)，提出采用分布式狀態(tài)監(jiān)測系統(tǒng)對設(shè)備狀態(tài)進(jìn)行監(jiān)測。第二部分是前端信號的采集，這是進(jìn)行狀態(tài)監(jiān)測的基礎(chǔ)。該部分深入探討并研究了現(xiàn)場采集節(jié)點(diǎn)的硬件流程。節(jié)點(diǎn)可以在監(jiān)測點(diǎn)附近布置。因此，模擬量傳輸線路短，方便了現(xiàn)場布線;將模擬信號數(shù)字化，提高了系統(tǒng)抗干擾能力。


關(guān)鍵詞：熱軋F(tuán)1~F6;信號采集;狀態(tài)監(jiān)測;RS485總線
















Abstract

The rolling mill is the critical equipment in Iron and Steel industry, and when it runs, heavy accidents often appear, which are difficult in explaining with statics when suffering from the load including deadweight, impulsive forces and so on. So it is necessary to build a set of condition monitoring system with perfect function and high reliability, in order to protect equipments from accident and maintain in advance. At present, there are a great deal of domestic condition monitoring systems which acquire signals by DAQ plugging in ICU. The ICU is far from the field and connected with signals from sensors directly, so the transmission line is long and difficult for wiring, and as a result the capability of anti-interference should be enhanced.
the study is focus on two parts. In the first part, the overall scheme has been designed. the position and objects of monitoring have been established which include electrical parameter, vibration, temperature, rotating speed, energetic parameter and displacement; Comparing the structure of the existing monitoring system, using distributed to state monitoring system to monitor the status of equipment. The second part studies the problem of data acquisition as a basis of condition monitoring and mainly probes into the design of hardware of field nodal point for acquisition. Nodes in the monitoring points near the layout. So the transmission line is short and convenient for wiring, and the capability of anti-interference has been enhanced remarkably.


Keywords: hot rolling F1~F6; data acquisition; condition monitoring; RS485 Bus test-bed







目 錄

中文摘要 Ⅰ
ABSTRACT Ⅱ
1狀態(tài)監(jiān)測方法 1
1.1 狀態(tài)監(jiān)測的發(fā)展 1
1.2 典型的監(jiān)測方法 2
1.2.1 分布式檢測技術(shù)的特點(diǎn) 2
2 F1~F2設(shè)備需求分析 4
2.1 監(jiān)測對象 4
2.2監(jiān)測方法 4
2.3監(jiān)測的選型 5
2.4性能要求 5
2.4.1系統(tǒng)的可靠性 5
2.4.2系統(tǒng)的實(shí)用性 5
2.4.3系統(tǒng)的先進(jìn)性 5
2.4.4系統(tǒng)的可擴(kuò)展性 5
2.4.5系統(tǒng)的可維護(hù)性 5
3系統(tǒng)設(shè)計(jì) 6
3.1系統(tǒng)概述 6
3.2 機(jī)組基本情況 6
3.3 測點(diǎn)的布置 7
3.3.1溫度測點(diǎn)的布置 7
3.3.2震動測點(diǎn)的布置 7
3.4網(wǎng)絡(luò) 9
3.5 C/S模式和B/S模式 9
3.5.1 C/S模式 9
3.5.2 B/S模式 10
3.6服務(wù)器 10
3.7數(shù)據(jù)庫 11
4關(guān)鍵技術(shù) 13
4.1系統(tǒng)結(jié)構(gòu)圖 13
4.1.1拓?fù)浣Y(jié)構(gòu) 13
4.2基本技術(shù)指標(biāo) 14
4.2.1軸向振動和徑向振動測試 14
4.2.2溫度測試 14
4.2.3軸向竄動和徑向跳動測試 14
4.2.4系統(tǒng)技術(shù)指標(biāo) 15
4.2.5系統(tǒng)可靠性、診斷準(zhǔn)確性指標(biāo) 15
4.3子系統(tǒng)的構(gòu)成 15
4.4信號拾取 15
4.4.1振動信號拾取 16
4.4.2溫度信號拾取 17
4.5Adam模塊 20
4.5.1 adam4015概述 20
4.5.2 adam4017概述 21
4.6振動交流分量智能數(shù)據(jù)采集站 22
4.7溫度信號智能數(shù)據(jù)采集控制站 23
4.8振動直流分量智能數(shù)據(jù)采集站 24
4.9系統(tǒng)采用的網(wǎng)絡(luò) 24
4.9.1 RS—485網(wǎng)絡(luò) 24
4.9.2 以太網(wǎng) 25
4.10TCP/IP協(xié)議內(nèi)容簡介 25
4.11計(jì)算機(jī)子系統(tǒng) 26
4.12LED顯示屏 27
4.13數(shù)據(jù)采集原理 27
5系統(tǒng)實(shí)現(xiàn)及分析 30
6結(jié)論 33
7致謝 35
參考文獻(xiàn) 36