二级圆柱齿轮变速器齿数比优化分配

应用函数极小值原理，对齿数比分配进行优化．导出了较为简单而实用的齿数比分配公式．在其他参数、条件相同的情况下，经优化分配齿数比后，齿轮传动的中心距或齿轮的重量能达到最小．它可用于减速或增速齿轮传动的设计中，为传统的齿数比分配提供了新的方法和计算公式．

Optimum Distribution of Gear Ratio of theTWo-Pair Spur Gear Transmission

n the principle of the function minimum,the distribution of the gear ratio is optimized and a practical and simple formula for distribution of the, gear ratio is derived. New methods and calculating formulas are provided and can be used forthe designs of eithher gearing-down or gearing-up devices.