通过对刀齿啮合关系的研究，针对高速机车牵引齿轮的应用和加工工艺特点，对高速机车牵引齿轮磨前滚刀齿形进行了优化设计，并可用计算机画出滚刀齿形和齿轮齿形 According to the research on the meshing relationship of cutter teeth, aiming at the application and processing technology of traction gear of high-speed locomotive, the gear shape of front hob of high-speed locomotive traction gear is optimized, and the cutter tooth profile and gear profile