基于SPH法的星形人字齿轮箱油气两相流动和参数影响分析  

Analysis of Oil-Gas Two-Phase Flow and Parameter Influence of Star Herringbone Gearboxes Based on the SPH Method

作　　者：王琳[1] 杜泽恺 郑志振 王勇[1] Wang Lin;Du Zekai;Zheng Zhizhen;Wang Yong(School of Mechanical Engineering,Northwestern Polytechnical University,Xi´an 710072,China)

机构地区：[1]西北工业大学机电学院,陕西西安710072

出　　处：《机械传动》2023年第2期116-123,共8页Journal of Mechanical Transmission

基　　金：国家自然科学基金(51975475);中央高校基本科研业务费(31020200503002)。

摘　　要：采用喷油方式进行润滑的星形人字齿轮箱内的流场分布非常复杂,针对其流动仿真分析存在很多困难。基于光滑粒子流体动力学(SPH)方法,建立了喷油润滑的星形人字齿轮箱内流场粒子仿真模型,获得了齿轮箱内不同截面位置处的油气两相分布特性,对比分析了不同齿轮转速和喷油速度条件下的流场油液分布和速度分布。结果表明,油液在齿轮轴方向上不同截面位置处滑油流场分布有明显不同,齿轮箱中间截面位置处分布的油液量最多,且在太阳轮、行星轮与喷油口之间的区域出现了局部涡流现象;齿轮转速和喷油速度对齿轮箱内的油液分布均有较大影响。The flow field distribution in the star herringbone gearbox lubricated by oil injection is very complex,and there are many difficulties in the flow simulation analysis.Based on the smooth particle hydrodynamics(SPH)method,the particle simulation model of the flow field in the star herringbone gearbox with oil injection lubrication is established,and the oil-gas two-phase distribution characteristics at different cross-section positions in the gearbox are obtained.The oil-liquid distribution and velocity distribution of flow field under different gear speeds and oil injection speeds are compared and analyzed.The results show that the oil flow field distribution is obviously different at different cross-section positions in the gear shaft direction,the oil flow in the middle cross-section position of the gearbox is the largest,and the local eddy current phenomenon occurs in the area between the solar wheel,planetary wheel and oil injection port.The gear speed and oil injection speed have great influence on the oil distribution in the gearbox.

关 键 词：星形人字齿轮箱 喷油润滑 光滑粒子流体动力学方法 流场分析 

分 类 号：TH132.41[机械工程—机械制造及自动化]