【摘要】 通过对指状锥面二次包络环面蜗杆传动进行啮合理论分析，提出了标准传动的通用数学模型。根据分析，△ａ修型、α角修型、△ｉ修型可以消除齿面分布密集的原接触线，采用混合变位后，在全程上改变传动比，可以得到良好的接触区。更多还原

【Abstract】 Analyzing the finger conical second enveloping ring-surface worm transmission by the fitting theory, the general mathematical model is put forward Modifing (a a angle add (I formation can eliminate oringinal arranging dense contact wire gear surface. An excellent contact area can be obtained after adopting mixture displacement by changing transimmisive ratio in a full range.更多还原