Abstract: The characteristics and helical angle of the double circular arc gear are very different from those of the involute gear.In this paper the gearing characteristics are described in terms of coincidence,gearing coefficient on a single line and point gearing coefficient.The choice of helical angle is a key in design which is explained in detail in the paper.Their effects on loading capability and driving quality is also presented.The optimum design data for various specific working conditions are recommended.

摘要： 双圆弧齿轮传动的啮合特性和螺旋角的设计与渐开线齿轮传动有质的区别.本文用重合度、单线啮合系数和点啮合系数描述啮合的特性,指出影响啮合的关键是螺旋角的设计,阐述了他们对承载能力和传动质量的影响,并就钻采设备用双圆弧齿轮传动的特定工况推荐了合理的设计值及其范围.

关键词: 抽油机, 泥浆泵, 双圆弧齿轮, 啮合特性, 重合度, 单线啮合系数, 点啮合系数, 螺旋角