传统式轧机的传动装置(如图1所示),存在着下列问题: 1.主电机驱动力是通过接轴传给支承辊的。随着支承辊和工作辊的不断磨损,各轧辊中心距会愈来愈小。为避免接轴在各轧辊中心距变化过程中偏转角度过大,势必要把接轴设计得很长。这样一来,维修空间便显得很狭窄,当更换接轴时,就要花费很多时间。 2.由于上下支承辊是通过两根接轴与齿轮机座连接的,所以存在着一个封闭的力矩循环。为防止因上下支承辊的转速差所引起的设备损坏,就必须提高传动构件的强度,或者在 Conventional mill transmission (shown in Figure 1), there are the following problems: 1. The main motor driving force is transmitted to the support roller through the shaft. With the continuous wear of the backup roll and the work roll, the center distance of each roll will be smaller and smaller. In order to avoid the excessive deflection of the spindles during the change of center distance of each roll, it is bound to design the spindles to be very long. As a result, the space for maintenance becomes narrow, and it takes a lot of time to change the shaft. 2. Since the upper and lower support rollers are connected to the gear frame by two spindles, there is a closed cycle of torque. In order to prevent equipment damage caused by the difference in rotation speed of the upper and lower backup rollers, it is necessary to increase the strength of the transmission member or, at