瓦面进油对推力轴承承载能力的影响分析

Analysis of the Influence of Tile Surface Oil-taking on Bearing Capacity of Thrust Bearing

基于FLUENT软件建立了推力轴承瓦面进油的CFD分析模型,分析了瓦面进油槽压力、位置以及宽度对推力轴承承载能力的影响规律。研究表明,合理的瓦面进油设计有利于提高推力轴承的承载能力。当进油槽压力达到一定数值后对油膜压力具有积极的增压作用;进油槽位置应靠近推力瓦入油边侧;进油槽宽度对承载能力的影响很小。研制了采用瓦面进油的某型重载推力轴承装置,开展了性能试验和1100 h长跑试验,为推力轴承润滑系统的设计提供了参考。

Based on FLUENT software,the CFD analysis model of tile surface oil-taking of thrust bearing is established.The influence of tile surface oil-taking groove pressure,position and width on the bearing capacity of thrust bearing is studied.Research shows that reasonable tile surface oil-taking groove design is beneficial to improve the bearing capacity of the thrust bearing.When the oil groove pressure reaches a certain value,it has a positive pressurization effect on the oil film.The oil groove should be close to the side of tile entering oil.The width of the oil groove has little effect on the bearing capacity.The heavy-duty thrust bearing device with tile surface oil-taking is developed,the performance test and 1 100 h long-distance running test are carried out,a reference for the design of the lubrication system for thrust bearing is provided.