VC轧辊套筒及芯轴关键结构参数的优化设计  

Optimal design of key structural parameters of VC roll sleeve and mandrel

作　　者：张冀 王佳臣 王帅 苏德龙 SAHAL Ahmed Elmi 白振华 ZHANG Ji;WANG Jiachen;WANG Shuai;SU Delong;SAHAL Ahmed Elmi;BAI Zhenhua(National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University,Qinhuangdao 066004,Hebei,China;State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,Hebei,China)

机构地区：[1]燕山大学国家冷轧板带装备及工艺工程技术研究中心,河北秦皇岛066004 [2]燕山大学亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004

出　　处：《钢铁》2024年第4期106-115,共10页Iron and Steel

基　　金：河北省高等学校科学技术研究项目资助项目(CXY2023012);河北省重大科技成果转化专项资助项目(22281001Z);辽宁省教育厅高等学校基本资助项目(LJKZZ20220040);河北省科学技术研究与发展计划资助项目(23280101Z);中央引导地方科技发展资金资助项目(236Z1024G)。

摘　　要：VC轧辊作为高效控制带钢质量的机型之一,国内虽有大量生产应用经验但缺少关键的自主设计方法。为此,首先从VC轧辊过盈装配后的基本结构出发,考虑套筒服役周期内的厚度变化,分别从轧辊强度、密封、相对滑动和有效凸度方面分析,确定了VC轧辊优化设计的关键结构参数为套筒厚度、原始过盈量、油腔宽度。进一步在国内某进口VC轧机的结构参数和实际生产工艺参数的基础上,分别分析各关键结构参数对套筒凸度、实际过盈力分布、加油压原始过盈力、加油压原始过盈量的影响,并在关键结构参数对各工艺参数影响的基础上,分别确定了各关键结构参数的设计重点和设计思路。最后,综合考虑VC轧辊的强度、密封、避免相对滑动以及接触疲劳的安全性,以极限生产工艺和极限工作状态为优化设计的前提,给出了VC轧辊关键结构参数优化设计的评价指标、目标函数和约束条件,确定了优化设计的整体流程方法。将优化设计方法应用到国内某进口VC轧机,并对比轧机结构的现有参数与设计参数下强度安全系数、相对滑动安全系数和目标函数。分析得出设计参数相比于现有参数而言,在保证套筒凸度和密封性的前提下,实现了强度安全性、避免相对滑动和过盈力分布均匀性的整体提升。优化设计方法的建立为VC轧辊的设计和校核技术提供了理论参考,具有一定的实际应用价值。As one of the models that efficiently control the quality of strip steel,VC roll has a lot of production and application experience but lacks key independent design methods.For this purpose,starting from the basic structure of VC roll interference assembly.The variation in thickness of the sleeve over the service life is taken into account and analyzed in terms of roll strength,sealing,relative sliding and effective convexity.The key structural parameters of the optimal design of VC rolls were determined to be sleeve thickness,original interference amount,and oil cavity width.Further,based on the structural parameters and actual production process parameters of a domestic imported VC rolling mill.The effects of each key structural parameter on the sleeve crown,the actual interference force distribution,the original interference force of the filling pressure and the original interference of the filling pressure were analyzed.On the basis of the influence of key structural parameters on each process parameter,the design focus and ideas of each key structural parameter were determined.Finally,the strength of the VC rolls,sealing,avoidance of relative sliding,and safety from contact fatigue were considered.Based on the premise of the optimal design of the extreme production process and the ultimate working state,the evaluation index,objective function and constraints of the optimal design of the key structural parameters of the VC roll are given.And the overall process approach to optimize the design was determined.After applying the optimization design method to a domestic imported VC rolling mill.The strength safety factor,the relative sliding safety factor and the objective function under the existing parameters and the design parameters of the rolling mill structure were compared.The analysis showed that,under the premise of ensuring the crown and sealing of the sleeve,the design parameters achieved an overall improvement in strength safety,relative sliding avoidance and uniformity of interference force distribut

关 键 词：VC轧辊 套筒厚度 原始过盈量 油腔宽度 优化设计 

分 类 号：TG333.17[金属学及工艺—金属压力加工]