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轧机工作辊的稳定运行是保持轧制过程稳定,保证轧件质量的重要前提。实践证明,工作辊处振动复杂,并且存在耦合现象。根据实际工况,综合考虑轧辊偏移、液压压下系统、轧制工艺等因素建立了轧机工作辊3种属性的耦合振动模型。利用MATLAB求解了该模型的固有频率及不同轧制工艺参数下系统振动响应情况,得到了不同轧制参数对轧制过程的影响及各属性振动的相互影响关系。通过对某钢厂F2轧机实测信号的分析,验证了结论的正确性。此研究为抑制轧机振动、实现轧制工艺参数最优化提供了依据。
Rolling mill work is the steady operation of the rolling process to maintain stability and ensure the quality of rolling an important prerequisite. Practice has proved that the vibration at the work roll complex, and there is a coupling phenomenon. According to the actual conditions, considering the roll offset, hydraulic press system, rolling process and other factors, the coupling vibration model of the rolling mill work roll is established. The natural frequency of the model and the vibration response of the system under different rolling process parameters were solved by using MATLAB. The influence of different rolling parameters on the rolling process and the mutual influence of the vibration of each property were obtained. The correctness of the conclusion is verified by analyzing the measured signal of a steel mill F2. This study provides the basis for the suppression of mill vibration and the optimization of rolling process parameters.