摘要：基于轧制理论、流体力学理论、机械振动理论等基本理论知识，对板材跳动引起高速轧机振动原理进行了分析，提出了板材跳动是导致轧机振动的原因之一;采用三维建模方法进行抑制高速轧机振动装置的结构设计，实现非接触减小板材跳动目的，同时避免板材接触划伤;然后通过抑制高速轧机振动装置的振动测试实验获取高速轧机振动相关数据，在同一坐标系内分别绘制出安装抑制高速轧机振动装置前后的上工作辊垂振位移曲线和上支承辊垂振位移曲线，并通过曲线进行轧机振动数据对比分析，实验结果表明，该抑制高速轧机振动装置能够减小板材跳动，抑制高速轧机振动，从而提高板材质量。

关键词：非接触;板材跳动;抑制;轧机振动

中图分类号：TG375文献标志码：A文章编号：1009-9492（2021）11-0133-04

Research on Non Contact Device for Reducing Plate Runout and Suppressing Vibration of High Speed Rolling Mill

Gao Ruijin

（Institute of Intelligent Manufacturing， Qingdao Huanghai University College， Qingdao， Shandong 266427， China）

Abstract： Based on the rolling theory， fluid mechanics theory， mechanical vibration theory and other basic theoretical knowledge， the vibrationprinciple of high-speed rolling mill caused by plate runout was analyzed， and it was pointed out that plate runout was one of the causes ofrollingmillvibration; thethree-dimensionalmodelingmethod wasusedtodesignthestructureof thevibrationsuppressiondeviceofhigh-speed rolling mill， so as to achieve the purpose of non-contact reduction of plate runout and avoid plate contact. Through the vibrationtest experiment of the vibration suppression device of high-speed rolling mill， the vibration related data of high-speed rolling mill wereobtained， and the vertical vibration displacement curves of upper working roll and upper backup roll before and after the installation of thevibration suppression device of high-speed rolling mill were drawn in the same coordinate system， and the vibration data of rolling mill werecompared and analyzed through the curves. The vibration device of high-speed rolling mill can reduce the plate runout and suppress thevibration of high-speed rolling mill， so as to improve the quality of plate.

Key words： non contact; plate runout; suppression; rolling mill vibration

0 引言

隨着国内汽车、船舶等机械制造行业的飞速发展，我国对轧制板材的需求量越来越大且对轧制板材的质量提出了更高的要求。轧制过程中，由于轧机的振动引起的轧制板材产品表面质量的缺陷，如轧制产品振动纹，是轧制板材生产中普遍存在的问题，振动纹的产生不但影响轧制产品的质量，而且轧机剧烈的振动还会造成断带或设备损坏事故，威胁生产安全并造成巨大的经济损失[1-2]。轧机振动是制约轧制板材产量和质量的重大因素，轧机振动对轧制过程的影响已成为钢铁企业亟待解决的重大技术难题。因此亟需对轧机振动问题及其形成机制进行分析，并制定抑制轧机振动的措施，为提高轧制速度及产品质量奠定基础[3]。……