组装或修复电机时,常用尖头丝杠顶住转轴中心孔,用拉钩钩住工件拆卸。这样,拉出来的工件转轴中心孔已破坏。后来,我们改用顶头的端面代替顶尖传递轴向力,使丝杠承受轴向力时,顶头心不随丝杠转动,保护了中心孔。经实践证明,本工具操作方便,效果良好。 保护转轴中心孔拉力器结构如图所 When assembling or repairing the motor, it is often used to hold the pointed screw against the center hole of the shaft, and hook the workpiece with the hook for removal. In this way, pulled out of the workpiece shaft center hole has been damaged. Later, we use instead of the top of the head to transmit axial force instead of the top, so that when the screw to withstand axial force, the head of the head does not rotate with the screw to protect the center hole. Proved by practice, the tool easy to operate, the effect is good. Protection shaft center hole Rally structure as shown