以MLX系列减速机用扇形可倾瓦滑动推力轴承为研究对象，建立基于计算流体动力学（CFD）的有限元仿真分析模型和基于数值分析方法的数值分析模型分析流体润滑性能，利用有限元分析模型研究分析了轴承中润滑油膜压力场和温度场的分布及其随轴承转速、润滑油粘度的变化情况。利用数值分析方法建立轴承油膜厚度模型，分析了轴承扇形瓦块倾角的变化对轴承润滑性能的影响。结果表明：随着轴承转速和润滑油粘度的增加，油膜最高压力和最高温度持续线性增大；扇形瓦块的周向、径向倾角对轴承油膜压力和厚度会造成影响，且径向倾角的影响更大。

The sector tilting pad sliding thrust bearing for MLX series reducer was taken as the research object, and the finite element simulation analysis model based on computational fluid dynamics (CFD) and mumerical simulation model based on numerical analysis method were established. The lubrication performance of fluid was analyzed, and the distribution of the pressure field and temperature field of the lubricating oil film in the bearing and its variation with the bearing speed and lubricating oil viscosity were studied by using the finite element analysis model. The oil film thickness model of bearing was built by numerical analysis method, and the effect of the variation of sector tilting pad on bearing lubrication performance was analyzed. Results show that with the increase of the bearing speed and lubricating oil viscosity, the maximum pressure and temperature of the oil film continue to increase linearly; the circumferential and radial inclination angles of the sector tilting pad have an impact on the oil film pressure and thickness of the bearing, and the radial inclination angle has a greater impact.

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