燕山大学学报2016,Vol.40Issue(5):377-389,13.
微尺度静定性轧机的设计与开发
Design and development of micro-scale statically determinate rolling mill
摘要
Abstract
Considering the effect of two micro dimensional parameters including roll bending deflection and clearance between chock and side surface of housing window on the statically determinate characteristic of the roll system structure, the roll system structure are analyzed by utilizing the theory of linkage degree of freedom analysis and synthesis and gyroscopic effect theory of mechanics. The results indicate that the structures of the mill have hyperstatic characteristics and statically indeterminate characteristics.For the former, spatial self⁃alignment high rigidity mill and spatial self⁃alignment universal high rigidity mill are developed by adding linkage degree of freedom.For the latter, by using jack devices, 600 semi statically determinate 4⁃Hi mill, statically determinate 6⁃Hi mill and closed stale section mill are developed during the research of burning loss of end thrust roller bearing of 2 200 aluminum foil 4⁃Hi mill due to dynamic cross. The scientific research achievement about lifetime extension of mill roller bearing has been obtained.After that, other production phenomenon, including different rolling load on both ends of backup roll, camber shape of the strip, lateral movement of the strip, burning loss of end⁃thrust roller bearing of intermediate roll in 6⁃Hi mill, chatter vibration, mill operating with under⁃design target and low reduction rate rolling. The disadvantages mentioned above are enough to prove that contemporary rolling mills are not perfect, and the micro⁃dimensional statically determinate mill created from improvement practice of small⁃scale mill should be applied in the design of large⁃scale mill such as heavy and medium plate mill.关键词
静定轧机/机构学自由度分析与综合理论/陀螺效应/轧机滚动轴承/跑偏/欠标运行Key words
statically determinate rolling mill/degree of freedom analysis and synthesis theory with theory of mechanism/gyroscopic effect/mill roller bearing/lateral movement/running with substandard condition分类
矿业与冶金引用本文复制引用
申光宪,郑永江,王小伟..微尺度静定性轧机的设计与开发[J].燕山大学学报,2016,40(5):377-389,13.基金项目
国家自然科学基金资助项目(50075075);国家自然科学基金青年科学基金资助项目(51505417);国家“十五”重点科技攻关项目(zz01-13A-02-01-03);教育部博士点基金资助项目(20111333110001);河北省自然科学基金青年科学基金资助项目(E2016203294);燕山大学青年教师自主研究计划课题项目(14LGB005);燕山大学博士基金资助项目 ()