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饭带轧机支承辊采用油膜轴承可以提高轴承寿命、减小摩擦、增加轧机刚度。但油膜厚度是轧制速度、轧制压力、油的粘度(或温度)等因素的函数,油膜厚度变化引起辊缝变化造成厚度偏差,轧制速度影响尤为明显。在液压压下厚度自动控制系统中常采用油膜厚度补偿环节,一般为开环控制、将有关影响参数信号引入系统经运算转化为辊缝补偿量,自动调节
Roll with rice rolls bearing roller bearing oil film can increase bearing life, reduce friction and increase mill stiffness. However, the thickness of the oil film is a function of factors such as the rolling speed, the rolling pressure and the viscosity (or temperature) of the oil. The variation of the thickness of the oil film causes the thickness deviation due to the change of the roll gap, and the influence of the rolling speed is particularly obvious. In the hydraulic pressure automatic thickness control system often used oil film thickness compensation links, usually open-loop control, the impact of the parameters of the signal into the system calculated by the roll gap compensation, automatic adjustment