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建立与实际加工相符合的坐标系，在对平面二次包络环面蜗杆传动的啮合性能进行深入分析的基础上，综合分析了蜗杆齿顶变尖和蜗轮齿面产生非工作区之间的矛盾变化规律，首次提出了蜗杆头数的奇偶性对平面二次包络环面蜗杆传动性能的影响规律，对多头小速比平面二次包络环面蜗杆传动的设计具有一定的指导意义。
The coordinate system which is in line with the actual machining is established. Based on the in-depth analysis of the meshing performance of the planar enveloping toroidal worm drive, the relationship between the tip of worm gear and the non- The law of variation of contradiction is put forward for the first time. The influence of the odd and even number of worm head on the transmission performance of planar quadratic enveloping worm is put forward for the first time, which is of guiding significance to the design of multi-headed small quadratically enveloping worm drive.