一、引言曲柄偏心式飞剪用于剪切行进中的钢坯。其传动简图如图1。主电机 M 通过减速机 A 的Ⅰ及Ⅲ两轴分别驱动工作机座 B 的齿轮 Z_6及 Z_4。后者又分别通过齿轮 Z_7及 Z_5驱动剪切机构 C 的导架2及偏心轴1。剪切机构相对于作业线上下对称。其运动状态亦上下对称,故分 First, the introduction Crank Eccentric flying shears for cutting billet in progress. The transmission diagram shown in Figure 1. The main motor M drives the gears Z_6 and Z_4 of the working base B respectively through the first and the second shafts of the reducer A. Which in turn drives the guide frame 2 of the shear mechanism C and the eccentric shaft 1 through gears Z_7 and Z_5, respectively. The shear mechanism is symmetrical up and down with respect to the work line. Its movement is symmetrical up and down, so points