加工大直径的棘轮,难度大,且效率低。我厂设计的棘轮滚刀在滚齿机上加工,加工效果甚佳。一、棘轮滚刀齿的展成原理 1.一般棘轮齿形如图1所示,是由过棘轮中心的直线n-n和另一侧与棘轮中心成一定距离的直线m-m所构成。所以棘轮的展成,是属于直线齿形的展成。m-m齿侧相当于普通矩形花键或三角花键的一个侧面,该侧面的滚刀共 Processing large diameter ratchet, difficult, and low efficiency. I design ratchet hob hobbing machine processing, processing very good results. First, the ratchet hobbing tooth formation principle 1. General ratchet tooth shape shown in Figure 1, is the center of the ratchet through the straight line n-n and the other side of the ratchet center at a distance from the line m-m posed. Therefore, the development of ratchet, is a straight tooth-shaped exhibition. The m-m tooth flank corresponds to one side of a normal rectangular or triangular spline,