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高速列车齿轮箱频发的润滑事故,理论计算了齿轮箱润滑所需润滑油量,采用流场仿真软件Fluent计算了不同浸油深度在不同转速下的有效润滑油量;优化了齿轮箱内部流道的结构,提高了有效润滑油量,并确定影响齿轮箱有效润滑油量的因素。理论计算了不同浸油深度下,搅油损失随着速度的变化情况,不同浸油深度下齿轮箱热平衡温度随着转速的变化情况。分析表明,齿轮箱流道液阻会使有效润滑油量降低,减小液阻能够提高齿轮箱的有效润滑油量;齿轮箱的有效润滑油量与搅油损失都会随着浸油深度增大而显著增大,随着转速的增大而增大;齿轮箱热平衡温度随着浸油深度增加而升高,随转速增大而升高。
Gearbox frequent high-speed train accidents, the theoretical calculation of the gearbox lubrication oil required, the use of flow field simulation software Fluent calculated different depth of immersion oil at different speeds of the effective lubricant; optimize the internal flow gear Road structure, improve the effective amount of oil, and determine the effective gearbox oil content factors. The variation of the oil loss with the speed at different immersion depths was calculated theoretically. The change of the heat balance temperature with the rotation speed of the gearbox at different immersion depths was calculated. The analysis shows that the liquid flow resistance of the gear box will reduce the effective lubricating oil quantity and reduce the liquid resistance to improve the effective lubricating oil quantity of the gearbox; the effective lubricating oil amount and the oil loss of the gearbox will increase with the oil immersion depth But increased significantly with the increase of rotating speed. The heat balance temperature of gearbox increased with the increase of oil immersion depth and increased with the increase of rotating speed.