回转台的起动和制动状态影响到单斗挖掘机工作循环的持续时间。回转机构电动机的转速和力矩之间的关系取决于动力机械特性。静力特性与动力特性间的偏差与机构的总惯性矩和操纵系统的电磁惯性有关。当传动装置具有间隙时,增加电磁惯性能够减少冲击;但是过多的增加电磁惯性,将出现动力和静力特性间的不谐调现象,致使循环时 The turntable’s starting and braking conditions affect the duration of a single-bucket excavator’s working cycle. The relationship between the speed and torque of the slewing mechanism motor depends on the dynamics of the machine. The difference between the static and dynamic characteristics is related to the total moment of inertia of the mechanism and the electromagnetic inertia of the control system. When the transmission has clearance, increase the electromagnetic inertia can reduce the impact; but too much increase in electromagnetic inertia, there will be dynamic and static characteristics of the phenomenon of discordant, so that when the cycle