夹送辊夹送工艺理论与研究
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摘要
夹送辊装置是中厚板生产线上关键设备之一,主要用于双边剪坯料的夹紧和输送,定尺剪坯料定尺、夹紧和输送。现有的夹送辊装置普遍存在跑偏现象,严重影响钢板切边、定尺质量和产量的提高。本论文将通过机构学理论对夹送辊跑偏进行理论分析,对夹送辊运行过程中的各构件微尺度变形进行深入研究,找出跑偏的原因,并开发一种具有锥型辊套的自适应夹送辊装置,实现夹送辊装置平稳精确运行。本论文的完成对板带材高精度加工具有重要的指导意义。
本论文详细分析了夹送辊在运行过程中各个关键部分的受力情况后,将板材的跑偏率引入到夹送辊装置的最终分析中,建立了从液压缸压力和最终板材实际状态的目标函数,推导出板材发生跑偏中各个因素的关系。从理论上分析了夹送辊装置在运行过程中出现的辊径差、辊身的微变形以及夹送辊的微尺度变形、对中性等因素之间的关系,确定出各参数在运行过程中可满足工程使用要求的范围,并采取了理论和实践相结合的方法,对各因素进行了实验分析和论证,证实了其可信度。在实际生产中可根据具体参数及因素之间的关系进行调控,使其能够最大限度的减少跑偏的几率,从而大大降低钢板发生跑偏的可能性,提高生产效率。
本文主要的创新点有:
(1)根据夹送辊的机械结构,推导出辊身微变形和压力之间的定量关系,可为夹送辊的设计和改造提供理论依托。
(2)设计开发新型锥形中间套夹送辊机构,该机构可以消除传统中间辊套和轴径配合所产生的不同心造成的跑偏。
(3)研制一种新型的柔性自适应夹送辊铰接机构,以适应来料变化,避免夹送辊输送带钢跑偏现象。
Pinch roller device is one of the key equipment in plate production line, it’s mainly used for clamping and delivery blanks in side shear, and stock length in sizing shear. It’s common in pinch roller device that the deviation have existed, it has seriously affected steel cutting, the quality of cutting length and the improved of quality. This paper will analysis the pinch roll deviation through the organization theory, and micro-scale deformation during the operation on the various components to identify the reasons for deviation. And a kind of adaptive tapered roller pinch roll unit has developed to achieve a operation smoothly and precisely. The completion of this thesis will play an important guiding significance on the high-precision machining of plate and strip.
Detailed analysis of this paper in the pinch roll during operation of the force of each key part of the situation, deviation rate of the sheet is introduced into the final analysis, the pressure from the hydraulic cylinder and the final objective function of the actual state of plate have been establishment. The relationship on each factor has been deduced. The pinch roll unit appear roller diameter difference in running, the micro-scale deformation, the relationship between the neutral and other factors have been analysis theoretically. And to take a combination of theory and practice method, the experimental analysis of the factors and demonstration proved its credibility. It’s can be based on specific parameters and factors regulating the pinch roll in the actual production, to enable them to minimize the risk of deviation, to reduce the possibility of deviation occurs, to improve production efficiency.
The main innovation of this paper:
(1) According to the mechanical structure of the pinch roll, the quantitative relationship between pressure and micro-deformation has been derived, that can provided theoretical support for the design and reconstruction.
(2) The middle set of a new pinch roller cone body have been designed and developed which can eliminate the roller and shaft misalignment caused by the deviation.
(3) Developed a new adaptive pinch roll of flexible hinge body to adapt to incoming change, to avoid the pinch roll steel belt deviation phenomenon.
本论文详细分析了夹送辊在运行过程中各个关键部分的受力情况后,将板材的跑偏率引入到夹送辊装置的最终分析中,建立了从液压缸压力和最终板材实际状态的目标函数,推导出板材发生跑偏中各个因素的关系。从理论上分析了夹送辊装置在运行过程中出现的辊径差、辊身的微变形以及夹送辊的微尺度变形、对中性等因素之间的关系,确定出各参数在运行过程中可满足工程使用要求的范围,并采取了理论和实践相结合的方法,对各因素进行了实验分析和论证,证实了其可信度。在实际生产中可根据具体参数及因素之间的关系进行调控,使其能够最大限度的减少跑偏的几率,从而大大降低钢板发生跑偏的可能性,提高生产效率。
本文主要的创新点有:
(1)根据夹送辊的机械结构,推导出辊身微变形和压力之间的定量关系,可为夹送辊的设计和改造提供理论依托。
(2)设计开发新型锥形中间套夹送辊机构,该机构可以消除传统中间辊套和轴径配合所产生的不同心造成的跑偏。
(3)研制一种新型的柔性自适应夹送辊铰接机构,以适应来料变化,避免夹送辊输送带钢跑偏现象。
Pinch roller device is one of the key equipment in plate production line, it’s mainly used for clamping and delivery blanks in side shear, and stock length in sizing shear. It’s common in pinch roller device that the deviation have existed, it has seriously affected steel cutting, the quality of cutting length and the improved of quality. This paper will analysis the pinch roll deviation through the organization theory, and micro-scale deformation during the operation on the various components to identify the reasons for deviation. And a kind of adaptive tapered roller pinch roll unit has developed to achieve a operation smoothly and precisely. The completion of this thesis will play an important guiding significance on the high-precision machining of plate and strip.
Detailed analysis of this paper in the pinch roll during operation of the force of each key part of the situation, deviation rate of the sheet is introduced into the final analysis, the pressure from the hydraulic cylinder and the final objective function of the actual state of plate have been establishment. The relationship on each factor has been deduced. The pinch roll unit appear roller diameter difference in running, the micro-scale deformation, the relationship between the neutral and other factors have been analysis theoretically. And to take a combination of theory and practice method, the experimental analysis of the factors and demonstration proved its credibility. It’s can be based on specific parameters and factors regulating the pinch roll in the actual production, to enable them to minimize the risk of deviation, to reduce the possibility of deviation occurs, to improve production efficiency.
The main innovation of this paper:
(1) According to the mechanical structure of the pinch roll, the quantitative relationship between pressure and micro-deformation has been derived, that can provided theoretical support for the design and reconstruction.
(2) The middle set of a new pinch roller cone body have been designed and developed which can eliminate the roller and shaft misalignment caused by the deviation.
(3) Developed a new adaptive pinch roll of flexible hinge body to adapt to incoming change, to avoid the pinch roll steel belt deviation phenomenon.
引文
[1]中国钢铁网http://www.yesteel.com/
[2]胡伟,彭燕.对滚切式双边剪夹送辊装置的分析及调整方法的改进[J].机械研究与应用.2006(6),第19卷,第三期
[3]中国夹送辊行业调查报告,中国市场调查网http://www.cncmrn.com/
[4]申光宪,束学道,李明.轧机微尺度理论和实际[M].北京:科学出版社,2005:15~46.
[5]Shu Xuedao, Chen Zhanfu, Shen Guangxian. Computation of three-dimensional distribution of contact pressure on roller bearing by BEM. Proceeding of the eighth China-Japan Symposium on BEM. 1998,6:210~215
[6]Orowan E.Graphical Calculation of the Roll Pressure with the Assumption of Homogeneous and Slipping Friction[J]. Proc. I. Mech. E. 1943,vol.150:141
[7] Kenichi Soda etc. Improvement in Flatress Control Rolled Produce for Tandem Cold Strip Mill [C]. Conference on Steel Rolling 1998.
[8]赖旭东,牛春营,邓拥军.制动夹送辊工艺参数的设定与调整[J].南方钢铁.1999(6)
[9]牛贵玲.新型出炉夹送辊[J].煤矿机械.2006(5),第27卷第5期
[10]莫韶斌,李全汉.双边剪夹送辊装置的调整[J].宽厚板,第7卷第4期
[11]张毅.智能双边剪夹送辊主从控制系统的研究与应用[D].湖北:武汉科技大学,2005.
[12]廖永锋.2050热轧卷取机夹送辊咬入带钢状态分析及改进[J].宝钢技术,1998:11‐14.
[13]付志刚,孙文彬,王景林等.带钢缠夹送辊事故分析与改进措施[J].轧钢,2006,23(4)55‐57
[14]孙爱明,高速线材厂吐丝前夹送辊几种常见故障的分析及处理[J],南钢科技与管理,2010(1):42~45
[15]曹自立,十字轴式万向联轴器推广应用现场会在承德钢厂召开[J].重型机械.1983(12)
[16]白振华,康晓鹏,龙瑞兵,等.工程实用平整轧制压力模型及其自学习技术研究[J].钢铁,2008,43(10):51~54
[17]万飞.夹送辊接触应力分析计算[J].重型机械科技,2001第1、2期,39‐43
[18]周国盈.夹送辊和张力辊的设计计算[R].上海:上海冶金设计院,1998.
[19]郭靖,孙清泉,袁晓江.滚切式双边剪钢板跑偏现象的分析与改进.冶金设备.2002,136:38‐41
[20]周志建.滚切式双边剪夹送辊的同步控制系统研究及应用[J].湖南:中南大学,2006.
[21]孙清泉,孙德宏.双边剪夹送辊同步控制系统在中厚板生产线的应用[J].冶金自动化.2009
[22]陈增响.特种疲劳震动试验机的结构动态响应分析[D].江苏:江南大学,1998.
[23]黄钟,程源.机械强度与刚度计算[M].机械工业出版社,1990:30‐49
[24]安宁,喻飞鹏.夹送辊的力能参数计算[J].有色金属加工,2007,36(6):50‐51.
[25]史静娴,刘娜.热连轧机卷曲夹送辊位置和压力控制[J].数字技术与应用,2010,98‐99.
[26]钟晓兵.三轴传动滚切式双边剪夹送辊的整改[J].重型机械科技,2002,3: 1‐8.
[27]郭良斌,罗治平.一类转向夹送辊主要结构参数的研究[J].冶金设备,2009,173:24‐29.
[28]张建军,黄新,王磊等.双边剪‐剖分剪夹送辊运送钢板状态分析[J].宽厚板,2007,13(4):34‐37.
[29]刘鸿文.材料力学[M].高等教育出版社.2003
[30]杨绪灿,金建三.弹性力学[M].北京:高等教育出版社,1987
[31]徐秉业.弹性与塑性力学[M].北京:机械工业出版社,1981
[32]刘宏民.三维轧制理论及其应用[M].北京:科学出版社,1999:54~146.
[33]Liu Hongmin , Lian Jiachuang, Duan Zhenyong. Study on the Asymmetrical Cold Rolling of Strip under Large Width to Thickness Ratio [J], Journal of Materials Science & Technology, 1996,12(3):232~234
[34]连家创.冷轧薄板轧制压力和极限最小厚度的计算[J],重型机械.1979(2):20~37
[35]刘焕广.轿车白车身结构有限元及其实验分析[D].合肥工业大学硕士学位论文,2007:4‐20
[36]吕继汉.有限元及其在动力机械中的应用[M].大连:大连理工大学出版史,1995:20‐32
[37]Okamoto T, Misaka Y, Kouno T, et al. Advanced gage and tension control of tandem cold mill with hydraulic screwdown system[J]. Transactions of the Iron and Steel Institute of Japan. 1976,16(2):28-33
[38]刘迎春,李乐新.冷轧机轧辊偏心的仿真与分析.沈阳航空工业学院学报[M].2008.6
[39]俞汉清,李晓沛,赵秉等,过盈配合的计算和选用,机械工业出版社[M],198710
[40]锥套承载能力数值模拟的研究,董华明、徐树新等,农业工程学报[J],1995年9月新型锥套在机械连接中的应用,崔丽娟,机械制造[J],,2005
[41]秦柏,邵俊鹏,张艳芹等,环形橡胶径向刚度特性仿真分析,哈尔滨理工大学学报,第14卷,第三期,20096,06
[42]俞汉清,李晓沛.过盈配合计算和选用指南[M].北京:高等教育出版社,1979.
[43] HORTON J M,Gover M J C, TUPHOLME G E . Stiffness of Rubber Bush Mountings Subjected to Radial Loading[J]. Rubber Chemistry and Technology ,2000,73(2):253-264;619-633
[44]夏琴香,张帅斌,吴小瑜等.锥形件单道次拉深旋压成形的数值模拟及试验研究[J].锻压技术,2010,(01).
[45]吕继汉.有限元及其在动力机械中的应用[M].大连:大连理工大学出版史,1995:20‐32
[46]李运光,李自林,张献民,王荣霞.结构工程的有限元法[M].北京:中国建材工业出版社,2002:130‐155
[47]张洪武,关振群,李云鹏,顾元宪.有限元分析与CAE技术基础[M].北京:清华大学出版社,2004:50‐210
[2]胡伟,彭燕.对滚切式双边剪夹送辊装置的分析及调整方法的改进[J].机械研究与应用.2006(6),第19卷,第三期
[3]中国夹送辊行业调查报告,中国市场调查网http://www.cncmrn.com/
[4]申光宪,束学道,李明.轧机微尺度理论和实际[M].北京:科学出版社,2005:15~46.
[5]Shu Xuedao, Chen Zhanfu, Shen Guangxian. Computation of three-dimensional distribution of contact pressure on roller bearing by BEM. Proceeding of the eighth China-Japan Symposium on BEM. 1998,6:210~215
[6]Orowan E.Graphical Calculation of the Roll Pressure with the Assumption of Homogeneous and Slipping Friction[J]. Proc. I. Mech. E. 1943,vol.150:141
[7] Kenichi Soda etc. Improvement in Flatress Control Rolled Produce for Tandem Cold Strip Mill [C]. Conference on Steel Rolling 1998.
[8]赖旭东,牛春营,邓拥军.制动夹送辊工艺参数的设定与调整[J].南方钢铁.1999(6)
[9]牛贵玲.新型出炉夹送辊[J].煤矿机械.2006(5),第27卷第5期
[10]莫韶斌,李全汉.双边剪夹送辊装置的调整[J].宽厚板,第7卷第4期
[11]张毅.智能双边剪夹送辊主从控制系统的研究与应用[D].湖北:武汉科技大学,2005.
[12]廖永锋.2050热轧卷取机夹送辊咬入带钢状态分析及改进[J].宝钢技术,1998:11‐14.
[13]付志刚,孙文彬,王景林等.带钢缠夹送辊事故分析与改进措施[J].轧钢,2006,23(4)55‐57
[14]孙爱明,高速线材厂吐丝前夹送辊几种常见故障的分析及处理[J],南钢科技与管理,2010(1):42~45
[15]曹自立,十字轴式万向联轴器推广应用现场会在承德钢厂召开[J].重型机械.1983(12)
[16]白振华,康晓鹏,龙瑞兵,等.工程实用平整轧制压力模型及其自学习技术研究[J].钢铁,2008,43(10):51~54
[17]万飞.夹送辊接触应力分析计算[J].重型机械科技,2001第1、2期,39‐43
[18]周国盈.夹送辊和张力辊的设计计算[R].上海:上海冶金设计院,1998.
[19]郭靖,孙清泉,袁晓江.滚切式双边剪钢板跑偏现象的分析与改进.冶金设备.2002,136:38‐41
[20]周志建.滚切式双边剪夹送辊的同步控制系统研究及应用[J].湖南:中南大学,2006.
[21]孙清泉,孙德宏.双边剪夹送辊同步控制系统在中厚板生产线的应用[J].冶金自动化.2009
[22]陈增响.特种疲劳震动试验机的结构动态响应分析[D].江苏:江南大学,1998.
[23]黄钟,程源.机械强度与刚度计算[M].机械工业出版社,1990:30‐49
[24]安宁,喻飞鹏.夹送辊的力能参数计算[J].有色金属加工,2007,36(6):50‐51.
[25]史静娴,刘娜.热连轧机卷曲夹送辊位置和压力控制[J].数字技术与应用,2010,98‐99.
[26]钟晓兵.三轴传动滚切式双边剪夹送辊的整改[J].重型机械科技,2002,3: 1‐8.
[27]郭良斌,罗治平.一类转向夹送辊主要结构参数的研究[J].冶金设备,2009,173:24‐29.
[28]张建军,黄新,王磊等.双边剪‐剖分剪夹送辊运送钢板状态分析[J].宽厚板,2007,13(4):34‐37.
[29]刘鸿文.材料力学[M].高等教育出版社.2003
[30]杨绪灿,金建三.弹性力学[M].北京:高等教育出版社,1987
[31]徐秉业.弹性与塑性力学[M].北京:机械工业出版社,1981
[32]刘宏民.三维轧制理论及其应用[M].北京:科学出版社,1999:54~146.
[33]Liu Hongmin , Lian Jiachuang, Duan Zhenyong. Study on the Asymmetrical Cold Rolling of Strip under Large Width to Thickness Ratio [J], Journal of Materials Science & Technology, 1996,12(3):232~234
[34]连家创.冷轧薄板轧制压力和极限最小厚度的计算[J],重型机械.1979(2):20~37
[35]刘焕广.轿车白车身结构有限元及其实验分析[D].合肥工业大学硕士学位论文,2007:4‐20
[36]吕继汉.有限元及其在动力机械中的应用[M].大连:大连理工大学出版史,1995:20‐32
[37]Okamoto T, Misaka Y, Kouno T, et al. Advanced gage and tension control of tandem cold mill with hydraulic screwdown system[J]. Transactions of the Iron and Steel Institute of Japan. 1976,16(2):28-33
[38]刘迎春,李乐新.冷轧机轧辊偏心的仿真与分析.沈阳航空工业学院学报[M].2008.6
[39]俞汉清,李晓沛,赵秉等,过盈配合的计算和选用,机械工业出版社[M],198710
[40]锥套承载能力数值模拟的研究,董华明、徐树新等,农业工程学报[J],1995年9月新型锥套在机械连接中的应用,崔丽娟,机械制造[J],,2005
[41]秦柏,邵俊鹏,张艳芹等,环形橡胶径向刚度特性仿真分析,哈尔滨理工大学学报,第14卷,第三期,20096,06
[42]俞汉清,李晓沛.过盈配合计算和选用指南[M].北京:高等教育出版社,1979.
[43] HORTON J M,Gover M J C, TUPHOLME G E . Stiffness of Rubber Bush Mountings Subjected to Radial Loading[J]. Rubber Chemistry and Technology ,2000,73(2):253-264;619-633
[44]夏琴香,张帅斌,吴小瑜等.锥形件单道次拉深旋压成形的数值模拟及试验研究[J].锻压技术,2010,(01).
[45]吕继汉.有限元及其在动力机械中的应用[M].大连:大连理工大学出版史,1995:20‐32
[46]李运光,李自林,张献民,王荣霞.结构工程的有限元法[M].北京:中国建材工业出版社,2002:130‐155
[47]张洪武,关振群,李云鹏,顾元宪.有限元分析与CAE技术基础[M].北京:清华大学出版社,2004:50‐210