冷轧带材板形辊传动方案设计
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摘要
板形在线测控是提高冷轧带材板形质量的关键措施。不同轧机的板形检测辊结构和尺寸差别较大,传动方案有被动与主动两种。不合理的传动方案可能导致带材与检测辊之间发生打滑,划伤带材。为解决上述问题,首先阐述了主、被动方案的整体选择依据。然后提出了打滑安全系数的概念,分析了引起打滑的主要因素,并将打滑安全系数作为新增板形仪传动方案的选择依据。针对被动方案,提出了提高打滑安全系数的具体措施,针对主动方案,建立了具体的电机选型理论。最后通过两套工业应用的板形检测辊,分别对主、被动方案进行了验证。
The flatness measurement and control are the key technology to improve the flatness quality of the cold rolling strip.The structure and size of the flatness measurement rollers of different rolling mills are quite different,and the electric drive of the flatness meter may be active or passive.An unreasonable electric drive of the flatness meter may cause the slippage between strip and roller,which may scratch the strip.To solve the above problem,the overall selection criteria of active and passive schemes are elaborated firstly.Then,the concept of the skidding safety factor is put forward,and the main factors causing skidding are analyzed.The skidding safety factor is taken as the criterion for selecting the electric drive scheme of the new flatness meter.Aiming at the passive scheme,the specific measures for increasing skidding safety factor are put forward.Aiming at the active scheme,specific motor selection theory is established.Finally,different electric drive schemes are verified through two sets of industrial flatness measurement meter.
The flatness measurement and control are the key technology to improve the flatness quality of the cold rolling strip.The structure and size of the flatness measurement rollers of different rolling mills are quite different,and the electric drive of the flatness meter may be active or passive.An unreasonable electric drive of the flatness meter may cause the slippage between strip and roller,which may scratch the strip.To solve the above problem,the overall selection criteria of active and passive schemes are elaborated firstly.Then,the concept of the skidding safety factor is put forward,and the main factors causing skidding are analyzed.The skidding safety factor is taken as the criterion for selecting the electric drive scheme of the new flatness meter.Aiming at the passive scheme,the specific measures for increasing skidding safety factor are put forward.Aiming at the active scheme,specific motor selection theory is established.Finally,different electric drive schemes are verified through two sets of industrial flatness measurement meter.
引文
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[17]马晓宝,王东城,张龙,等.工作辊驱动UCM轧机支撑辊配辊策略[J].钢铁,2016,51(11):55.(MA Xiao-bao,WANG Dong-cheng,ZHANG Long,et al.Backup roll matching strategy for UCM mill driven by work roll[J].Iron and Steel,2016,51(11):55.)
[2]何小丽,王崇.冷轧机组闭环板形控制策略研究[J].冶金自动化,2018,42(2):44.(HE Xiao-li,WANG Chong.Study on closed-loop shape control strategy of cold colling[J].Metallurgical Industry Automation,2018,42(2):44.)
[3]张维召.邯钢2180 mm酸轧机组板形控制研究[J].轧钢,2018,35(1):82.(ZHANG Wei-zhao.Study on strip shape control technology of 2 180mm picking and tandem cold mill of Hansteel[J].Steel Rolling,2018,35(1):82.)
[4]徐利璞,尤磊,王大号,等.ABB板形仪在冷轧带钢生产中的应用[J].中国冶金,2014,24(1):23.(XU Li-pu,YOU Lei,WANG Da-hao,et al.Application of ABB shape meter in cold-strip steel production[J].China Metallurgy,2014,24(1):23.)
[5]梁勋国,矫志杰,王国栋,等.冷轧板形测量技术概论[J].冶金设备,2006(6):36.(LIANG Xun-guo,JIAO Zhi-jie,WANG Guo-dong,et al.The technology of flatness measurement in cold rolling[J].Metallurgical Equipment,2006(6):36.)
[6]陈丽娟,韩斌,谭文,等.带钢板形检测与控制技术现状及趋势[J].轧钢,2012,29(4):38.(CHEN Li-juan,HAN Bin,TAN Wen,et al.Technology status and trend of shape detecting and shape controlling of rolled strip[J].Steel Rolling,2012,29(4):38.)
[7] WANG Dong-cheng,LIU Hong-min,LIU Jun.Research and development trend of shape control for cold rolling strip[J].Chinese Journal of Mechanical Engineering,2017,30(5):1.
[8]刘宏民,刘军,于丙强,等.带钢冷轧机整辊无线式板形仪和智能板形控制系统[J].机械工程学报,2017,53(12):87.(LIU Hong-min,LIU Jun,YU Bing-qiang,et al.Entire roller wireless shape meter and intelligent shape control system for cold steel strip mills[J].Journal of Mechanical Engineering,2017,53(12):87.)
[9]刘宏民,于丙强,杨利坡,等.整辊镶块智能型冷轧带钢板形仪的研制与工业应用[J].钢铁,2011,46(12):86.(LIU Hong-min,YU Bing-qiang,YANG Li-po,et al.Development of cold strip shape meter with entire roller inlayed block intelligence and its industrial application[J].Iron and Steel,2011,46(12):86.)
[10]刘宏民,于丙强,杨利坡,等.一种用于冷轧带材板形仪的紧凑无线内嵌式信号处理器:中国,CN105005287A[P].2015-10-28.(LIU Hong-min,YU Bing-qiang,YANG Li-po,et al.A Type of Seamless and Embedded Signal Processor Used for Shapemeter:China,CN105005287A[P].2015-10-28.)
[11]张明,彭艳,孙建亮,等.2 160mm热连轧机组F2精轧机振动机理及测试[J].钢铁,2016,51(12):103.(ZHANG Ming,PENG Yan,SUN Jian-liang,et al.Test of vibration on F2of 2160mm hot strip mill[J].Iron and Steel,2016,51(12):103.)
[12]王喜刚,叶爱山,王左力.F2轧机工作辊耦合振动分析[J].锻压技术,2017,42(11):127.(WANG Xi-gang,YE Ai-shan,WANG Zuo-li.Analysis on coupling vibration of working roller for F2rolling mill[J].Forging and Stamping Technology,2017,42(11):127.)
[13]郭志强,卢欣欣,任学平.UR轧机主传动装置的有限元分析[J].铸造技术,2017,38(6):1460.(GUO Zhi-qiang,LU Xinxin,REN Xue-ping.Finite element analysis of main drive device of UR rolling mill[J].Foundry Technology,2017,38(6):1460.)
[14]黄志刚,张林,陈雾,等.宝钢轧制线电气传动装置的应用与建议[J].宝钢技术,2014(2):18.(HUANG Zhi-gang,ZHANG Lin,CHEN Wu,et al.Application and suggestions of electric driving devices used in Baosteel[J].Baosteel Technology,2014(2):18.)
[15]樊立萍,邓永娟,王若然.镁板轧机主传动系统的模糊免疫PID控制[J].机械制造与自动化,2017(3):208.(FAN Liping,DENG Yong-juan,WANG Ruo-ran.Fuzzy immune PID control of main drive system for magnesium plate rolling mill[J].Mechanical Manufacture and Automation,2017(3):208.)
[16]周国盈.带钢精整设备[M].北京:冶金工业出版社,1982.(ZHOU Guo-ying.Steel Strip Finishing Equipment[M].Beijing:Mechanical Industry Press,1982.)
[17]马晓宝,王东城,张龙,等.工作辊驱动UCM轧机支撑辊配辊策略[J].钢铁,2016,51(11):55.(MA Xiao-bao,WANG Dong-cheng,ZHANG Long,et al.Backup roll matching strategy for UCM mill driven by work roll[J].Iron and Steel,2016,51(11):55.)