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随着对冷轧机振动研究的不断深入,发现冷轧机工作辊所呈现的振动通常都是耦合振动。首先建立冷轧机主传动系统和冷轧机辊系的简化振动模型,并利用Matlab软件计算出冷轧机主传动系统和辊系振动模型的固有频率。然后利用Adams软件对冷轧机辊系进行动力学仿真,并在仿真过程中添加3倍振频的扰动力和扰动力矩。仿真结果表明:在无外界干扰情况下,由于轧辊间存在的摩擦力,该冷轧机会发生自激振动;对于六辊冷轧机,中间辊的水平振动也会影响工作辊的垂直振动和扭转振动;当垂直振动和扭转振动同时发生时,轧机工作辊每种振动会显示其他振动的特征。
With the further research on the vibration of cold rolling mill, it is found that the vibration presented by the work rolls of the cold rolling mill is usually coupled vibration. First, the simplified vibration model of the main drive system and the cold rolling mill of the cold rolling mill was established. The natural frequencies of the main drive system and the roll model of the cold rolling mill were calculated by Matlab software. Adams software was then used to simulate the cold rolling mill roll system and add 3 times the vibration frequency and disturbance torque in the simulation process. The simulation results show that the self-excited vibration occurs in the cold rolling mill due to the friction between the rollers in the absence of outside disturbance. For the six-roll cold rolling mill, the horizontal vibration of the intermediate roller also affects the vertical vibration and torsion of the working roller Vibration; When both vertical and torsional vibrations occur simultaneously, each vibration of the mill work roll shows the characteristics of the other vibrations.