行星轮系周转运动过程中的润滑油液分布与搅油损耗研究  

Study on the Oil Distribution and Churning Loss in the Rotation of a Planetary Gear Train

作　　者：陈慧潇 师陆冰 职彦锋 颜世铛 丁昊昊 裴帮 刘忠明 王文健[3] Chen Huixiao;Shi Lubing;Zhi Yanfeng;Yan Shidang;Ding Haohao;Pei Bang;Liu Zhongming;Wang Wenjian(ZRIME Gearing Technology Co.,Ltd.,Zhengzhou 450001,China;Zhengzhou Research Institute of Mechanical Engineering Co.,Ltd.,Zhengzhou 450001,China;Tribology Research Institute,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]郑机所(郑州)传动科技有限公司,河南郑州450001 [2]郑州机械研究所有限公司,河南郑州450001 [3]西南交通大学摩擦学研究所,四川成都610031

出　　处：《机械传动》2024年第9期10-17,共8页Journal of Mechanical Transmission

基　　金：工业和信息化部盾构/TBM关键核心零部件开发及应用项目。

摘　　要：为探究行星齿轮传动系统飞溅润滑行为,基于移动粒子半隐式(Moving Particle Semi-implicit,MPS)方法建立了行星轮系飞溅润滑仿真模型,并对其进行了试验验证;研究了行星轮系周转运动过程中的减速器内部油液分布特征、轮齿啮合区润滑油液粒子数量以及各旋转部件搅油损耗的变化规律。研究结果表明,行星轮系周转运动过程中,减速器内部可划分为油池区、拖拽区和贫油区3个区间;行星轮渐次通过各区间过程中,不同啮合区域内油液粒子数量以及各部件搅油损耗力矩值均呈现周期性变化规律。其中,内啮合区与外啮合区润滑油液粒子数量在行星轮运行至油池区时达到峰值,并均在进入贫油区后迅速下降至最小值;行星轮搅油损耗力矩在进入油池区后急剧上升至峰值,在进入拖拽区后持续下降直至进入贫油区后稳定在极低水平;而行星架搅油力矩在某一行星轮进入油池区域时急剧下降,在该行星轮进入拖拽区且下一行星轮未进入油池区时快速回升。在整个周转周期内,太阳轮搅油损耗较小且变化趋势较为平缓。行星轮系总的搅油损耗功率中,3个行星轮总搅油损耗功率占比约为60%,其次是行星架,太阳轮占比最少。A splash lubrication simulation model of a planetary gear train was established based on the moving particle semi-implicit(MPS)method,and it was verified by experiments to explore the splash lubrication behavior of the planetary transmission.Through the simulation,the oil distribution characteristics,the number of lubricating oil particles in the engagement zones,and the churning loss of the rotating components were studied.The results show that in the rotation of the planetary gear train,the interior space of the gearbox can be divided into three regions:the oil-pool region,the oil-dragging region,and the oil-poor region.The number of oil particles in different engagement zones and the churning torque of each component show periodic variations during the planet gear passes through the three regions.The numbers of oil particles in the inner and outer engagement zones reach the peak when the planet gear runs into the oil-pool region,and both drop rapidly to a minimum value after entering the oil-poor region.The churning torque of the planet gear rises sharply to the peak after entering the oil-pool region and keeps the peak value until the planet gear enters the oil-dragging region,then the churning torque turns to fall until stabilizing at a very low level when the planet gear enters the oil-poor region.Different from the planet gear,the churning torque of the planetary frame drops sharply when one of the planet gears enters the oil-pool region and rises rapidly when that planet gear enters the oil-dragging region and the next one has not entered the oil-pool region.The churning torque of the sun gear is small and insensitive to the planet gear positions.Among the total churning power of the planetary gear train,the sum of the three planet gears accounts for about 60%,followed by the planetary frame,and the sun gear accounts for the least.

关 键 词：MPS 行星轮系 飞溅润滑 油液分布 搅油损耗 

分 类 号：TH132.41[机械工程—机械制造及自动化] TH117.2