在机床维修中，我们时常拆卸磨头电机皮带轮，由于皮带轮的拆卸空间较小，很难用普通工具拆卸，有时把皮带轮砸烂也拆不下来，非常费工、费时。为此，笔者设计制造了一种专用拆卸装置，实践证明，效果较好。 (1)装置的结构和工作原理 如图装置由基体 11、丝杠 7、活爪 5、转杆 In the machine maintenance, we often disassemble the grinding head motor pulley, pulley disassembly space is small, it is difficult to disassemble with ordinary tools, sometimes smashing the pulley can not be demolished, very laborious and time-consuming. To this end, I designed and manufactured a special demolition device, the practice proved that the effect is better. (1) the structure and working principle of the device shown in Figure device from the base 11, the screw 7, the claw 5, the lever