抽油机减速器渐开线齿轮的优化设计

本文针对抽油机减速器齿轮啮合参数的优化设计,提出了斜齿轮齿面接触强度的定义和计算公式。计算中考虑了齿宽有效度、端面重合度和附加重合度因素,以期更符合齿面实际受力情况,使机械设计与材料强度理论结合得更好。还对有关轴的键槽、轴孔、轴肩所引起的应力集中系数的计算方法作了补充。

Optimum Design of the Gears on Pumping Unit Reducers

For design optimization of the meshing parameters of reducer gears on sucker rod pumping units, the author presents the implication and formula of the flank contact strength of helical gears· Relevant factors, as the effectiveness of face width and the transverse contact ratio, are taken into consideration,in order to tally with the actual stress on the tooth faces and combine structural design with theory of material strength more closely· In addition,design factors for stress concentration caused by key slots,holes and fillets are discussed as well.