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本轧机的特点是从开坯(最大钢锭重40吨)到成品(钢板最小厚度8毫米)生产都在这台四辊可逆式单机座轧机上一气呵成。由于轧辊接手强度受到空间条件限制致使传动系统成为轧机的薄弱环节。本文是在使用电阻应变仪及光线示波器等对该轧机先后三次进行综合测试的基础上所作的传动系统专题总结。主要内容有:轧机轴系扭振固有频率和振型的电子计算机分析;各种咬钢加载过程的动态反应及计算公式;总反应的简化计算与反应谱;万向接轴的动荷系数及其可能的最大值。文中提出降低动荷系数的方法。所列数据、公式和图线可供设计者和操作者参考;也可与工艺联系起来为进一步制订控制负荷和优化轧制方案服务。
The characteristics of this mill are the production of the four-roll reversible stand-alone mill from the production of the blanks (maximum steel ingot weight of 40 tons) to finished products (minimum steel thickness of 8 mm). Because of the strength of the roll take over the space constraints, the transmission system becomes the weak link of the rolling mill. This article is the use of resistance strain gauges and optical oscilloscope on the mill has conducted three comprehensive tests on the basis of the transmission system project summary. The main contents are as follows: computer analysis of natural frequencies and mode shapes of torsional vibration of rolling mill shaft; dynamic response and calculation formula of various bite loading process; simplified calculation and response spectrum of total reaction; dynamic load coefficient of universal joint and Its possible maximum. The paper proposes a method to reduce the dynamic load coefficient. The listed data, formulas and plots are for reference to both the designer and the operator; they can also be linked to the process to further control load and optimize rolling programs.