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在现代带钢生产中,广泛地采用着AGC技术。目的在于迅速地消除来料偏差,生产出高质量的板带产品。 在AGC控制的轧机上与旧式轧机相比,压下机构的运动规律和负荷状态都有着明显的区别。旧轧机精轧的压下机构,在有负荷的情况下通常是简单的低速匀速运动,即使有初始加速度也是很小的。例如有一座五十年代建成投产的半连续式轧机,其精轧机压下速度是0.266mm/s,加速度<0.3mm/s~2。正因为在旧轧机上带钢压下时对加速度没有要求,所以压下电机的选择机构中零部件的设计计算,都未考虑动态力矩而仅考虑在有轧制力的情况下的摩擦静阻力矩,即:
In modern strip production, AGC technology is widely used. The purpose is to quickly eliminate the incoming deviation, to produce high-quality strip products. Compared with the old mill in the AGC-controlled rolling mill, there is a clear difference between the law of motion and the load state of the pressing mechanism. The rolling mechanism of the old rolling mill is usually a simple low-speed uniform motion under a load, even with an initial acceleration. For example, there is a semi-continuous mill built and put into operation in the 1950s. The finishing mill has a reduction speed of 0.266 mm / s and an acceleration of <0.3 mm / s ~ 2. Precisely because there is no requirement for acceleration when the steel strip is pressed down on the old rolling mill, the design and calculation of the components in the selection mechanism of the reduction motor have not considered the dynamic moment but only the frictional static resistance under the rolling force Moment, namely: