一种八辊冷轧机的轧辊偏心补偿控制

Control of Roller Eccentricity Compensation for Eight-Roll Cold Mill

轧辊偏心是影响高精度板带材质量的重要因素,通过对八辊冷轧机轧辊偏心信号的分析计算,得出了一种偏心补偿控制方法。通过对轧辊圆周定点轧制力数据采样间接得出偏心信号,然后将偏心信号处理转换为液压偏心调整机构的电压信号,以补偿轧辊偏心的影响。补偿后,轧制出口厚度精度得到了明显改善。

Roller＇s eccentricity is an important factor to impact the quality of high-precision-plates, through analyzing and calculating the eccentricity signal of eight-roll cold mill, A compensate-eccentricity controlling method is got. Through sampling the data of the rolling force from the fixed-points of the roller＇s circle, the eccentricity signal is indirectly abtained, then the eccentricity signal is changed into electronic signal of the adjust-eccentricity hydraulic structure to compensate the impact of the roller＇s eccentricity. After the compensation, the thickness＇ precision of the rolling output can be improved greatly.