Lubrication and cooling performances of face gears with oil–jet lubrication are closely related to the nozzle layouts. To investigate the influence of the nozzle layouts on the lubrication performance of the face gears, a numerical analysis method based on heat-flow coupling is adopted in this study for predicting the transient temperature characteristics. First, a mathematical model of impingement depth integrating the nozzle spatial layouts, injection parameters, and geometric parameters of the given face gear is presented for determining the nozzle. Then, after accessing the friction heat, the heat-flow-coupled finite element model is built to resemble the oil–jet lubrication process and obtain the temperature field on the tooth surface. Finally, under the same nozzle layouts, the temperature distributions are compared with the oil pressure and oil volume fraction reported in previous studies. The results reveal that the nozzle layouts significantly affect lubrication performance. Specifically, the lubrication performance of the lateral layout parameter near the middle point of the tooth width is better, and there is a certain range for the longitudinal layout parameter and jet elevation angle. This study can provide a reference for further optimizing the nozzle layouts and prolonging the service life of the orthogonal face gear.

带有喷油润滑的平面齿轮的润滑和冷却性能与喷嘴布局密切相关。为了研究喷嘴布局对端面齿轮润滑性能的影响，本文采用基于热流耦合的数值分析方法来预测瞬态温度特性。首先，给出了冲击深度的数学模型，该模型结合了喷嘴空间布局，喷射参数和给定平面齿轮的几何参数，以确定喷嘴。然后，在获得摩擦热之后，建立热流耦合有限元模型，以模拟喷油润滑过程并获得牙齿表面的温度场。最后，在相同的喷嘴布局下，将温度分布与先前研究中报告的机油压力和机油体积分数进行比较。结果表明，喷嘴布局会显着影响润滑性能。具体地，在齿宽的中点附近的横向布置参数的润滑性能更好，并且纵向布置参数和射流仰角在一定范围内。该研究可为进一步优化喷嘴布局和延长正交平面齿轮的使用寿命提供参考。纵向布置参数和射流仰角在一定范围内。该研究可为进一步优化喷嘴布局和延长正交平面齿轮的使用寿命提供参考。纵向布置参数和射流仰角在一定范围内。该研究可为进一步优化喷嘴布局和延长正交平面齿轮的使用寿命提供参考。