本文以带式运输机为例对齿轮的结构参数优化设计进行了探讨。提出了用曲线拟合法建立优化设计数学模型的方法。应用复合形法在 IBM—PC 型电子计算机上寻优计算,获得了最优设计参数,齿轮重量比常规设计减轻了17.8%。本文提供的齿轮优化设计的建模方法对于各种机械的传动齿轮都具有普遍意义。 In this paper, taking the belt conveyor as an example, the gear structure parameters optimization design is discussed. A method to establish mathematical model of optimal design by curve fitting is proposed. The complex shape method was used to optimize the calculation on the IBM-PC electronic computer, and the optimal design parameters were obtained. The weight of the gear was reduced by 17.8% compared with the conventional design. This article provides a gear optimization design modeling method for a variety of mechanical transmission gear has a universal significance.