锻压技术

拉矫机弯曲单元工作辊力学分析及长寿命研究

英文标题：Mechanical analysis and research on long life of work roll in bending unit for tension leveler

作者：任学平1 马龙1 2

分类号：TG333.17

出版年,卷(期):页码：2022,47(6):186-192

摘要：

拉矫机是连续热镀锌生产中重要的镀后处理设备，但其频繁出现的掉辊现象造成镀锌板板面划伤和断带停线事故，严重影响了其功能的发挥和生产线的稳定运行。在了解其结构组成的基础上，通过力学分析，发现掉辊现象是工作辊辊端支撑轴承在轴向力的作用下失效磨损所致。利用逆推法求得了轴向力，并结合Workbench摩擦生热分析，采用推力轴承的合理选用、辊系装配质量的提高、拉矫工艺参数的优化、伸长率和温度反馈信号的获取等多种针对性办法，不但解决了拉矫机弯曲单元的频繁更换的问题，而且阻止了掉辊现象的发生，保证了生产线的连续稳定运行，达到了降本增效的目的。

The tension leveler is an important post-plating treatment equipment in continuous hot-dip galvanizing production, but its frequent roll-off phenomenon causes scratch of galvanized sheet surface and accidents of broken belt and line stop, which seriously affects the performance of its function and the stable operation of production line. Therefore, on the basis of understanding its structural composition, through mechanical analysis, it was found that the work roll end support bearing failed and worn under the action of axial force which caused the roll-off phenomenon, and the axial force was obtained by the inverse method. Then, combined with the frictional heat generation analysis of Workbench, the appropriate selection of thrust bearings, the improvement of roll assembly quality, the optimization of tension leveling process parameters, the acquisition of elongation and temperature feedback signals and so on were adopted. A variety of targeted methods not only solved the frequent replacement problem of the bending unit for tension leveler, but also prevented the occurrence of roll-off phenomenon, ensured the continuous and stable operation of production line, and achieved the purpose of reducing costs and increasing efficiency.

基金项目：

内蒙古自治区自然科学基金资助项目（2019LH05008）

任学平（1963-），男，博士，教授 E-mail：rxp@imust.cn 通信作者：马龙（1985-），男，硕士，机械工程师，镀锌工技师 E-mail：15947025479@163.com

参考文献：

[1]李九玲.带钢连续热镀锌[M]. 第四版.北京:冶金工业出版社,2019.

Li J L. Continuous Hotdip Galvanizing of Strip Steel[M]. 4th Edition. Beijing: Metallurgical Industry Press,2019.

[2]孟宪跃,张洪锐,霍洪波.拉伸弯曲矫直机在铝带精整中的应用研究[J].机械设计与制造,2014,(5):173-175.

Meng X Y,Zhang H R,Huo H B. A brief analysis of tensionleveling line used for aluminum strip sizing[J].Machinery Design ＆ Manufacture,2014,(5):173-175.

[3]刘春浩,王晓枫,张锡昌，等.微型轴承的失效模式及其对策[J].轴承,2002,(12):28-31.

Liu C H,Wang X F,Zhang X C, et al. Failure mode and its countermeasure for miniature bearing[J].Bearing,2002,(12):28-31.

[4]李生存,陈景辉,王浩宇.拉矫机工作辊异常磨损和轴头烧损的对策[J].中国冶金,2018,28(10):51-56.

Li S C,Chen J H,Wang H Y.Countermeasures for inordinate wearing and axle neck burning of work roll in tension leveler[J].China Metallurgy,2018,28(10):51-56.

[5]张小丽,王保建,马猛,等.滚动轴承寿命预测综述[J].机械设计与制造,2015,(10):221-224.

Zhang X L,Wang B J,Ma M,et al. A review of life prediction for roller bearing[J].Machinery Design ＆ Manufacture,2015,(10):221-224.

[6]甘信滨.滑动摩擦温度场及传热过程熵产生分析[D].沈阳：东北大学，2015.

Gan X B.The Analysis of Sliding Friction Temperature Field and Entropy Production of Thermal Transfer Process[D].Shenyang: Northeastern University,2015.

[7]宋少云,尹芳.有限元网格划分中的圣维南原理及其应用 [J].机械设计与制造,2012，(8):63-65.

Song S Y,Yin F. Sain vaint principle of meshing in finite elememt method and its application[J].Machinery Design ＆ Manufacture,2012，(8):63-65.

[8]宋全斌,马林,刘维.提高重卷拉矫辊寿命的优化[J].重型机械,2016,(4):70-73.

Song Q B,Ma L,Liu W.Measures for improving the service life of recoiling pullingstraightening roller[J].Heavy Machinery,2016,(4):70-73.

[9]马龙,任学平,高照.镀锌机组拉矫机辊端支撑轴承磨损分析和对策[J].重型机械,2021,(6):63-67.

Ma L,Ren X P,Gao Z.Analysis and countermeasures for wear of roll end support bearings of tension leveler in galvanizing line[J].Heavy Machinery,2021,(6):63-67.

[10]倪泽娅.酸洗机组拉矫机的国产化开发与研究[J].机械设计与制造,2015,(5):119-121,126.

Ni Z Y.Design and research of tension leveller[J]. Machinery Design ＆ Manufacture,2015,(5):119-121,126.

[11]李九玲,许秀飞,李守华.带钢连续热镀锌生产问答[M].北京:冶金工业出版社,2011.

Li J L,Xu X F,Li S H.Questions and Answers on Continuous Hotdip Galvanizing of Strip Steel [M].Beijing: Metallurgical Industry Press,2011.

[12]范晶晶,汪木兰,左健民,等.高速切削温度的二维热传导模型建立及求解[J].机械设计与制造,2014,(1)：84-87.

Fan J J,Wang M L,Zuo J M，et al.2-D heat conduction model of highspeed cutting temperature and its solution[J].Machinery Design ＆ Manufacture,2014,(1)：84-87.

[13]朱红霞,沈兴全.金属切削温度测量方法的研究[J].煤矿机械,2014,35(1):96-98.

Zhu H X,Shen X Q.Research on measurement methods of metal cutting temperature[J].Coal Mine Machinery,2014,35(1):96-98.

服务与反馈：

【文章下载】【加入收藏】