Temper mill transmission system control method, transmission system and temper mill

The invention discloses a temper mill transmission system control method, a transmission system and a temper mill. The temper mill transmission system control method comprises the steps that whether a lifting signal used for representing lifting of an inlet pinch roll exists or not is detected; if the lifting signal does not exist, the electromagnetic clutch is controlled to be closed; and if the lifting signal exists, the electromagnetic clutch is controlled to be disconnected, and the inlet pinch roll stops rotating. Thus, through redesign of a power system, under the condition of existing equipment capacity, through separate control of the inlet pinch roll and the straightening roll, loss of inlet pinch roll conveying equipment is reduced, meanwhile, it is kept that motor power is intensively used for kinetic energy transmission of the straightening roll, the straightening capacity is improved, and the equipment function is brought into full play. 本发明公开一种平整机传动系统控制方法、传动系统及平整机，通过检测是否存在用于表征入口夹送辊抬起的抬升信号；若不存在抬升