船用柴油机止推轴承润滑特性分析及优化设计  

Lubrication Characteristics Analysis and Optimum Design of Thrust Bearing for Marine Diesel Engine

作　　者：徐海成 焦亚飞 徐聪聪 李梅 叶斌 XU Haicheng;JIAO Yafei;XU Congcong;LI Mei;YE Bin(Marine Equipment Project Management Center,Beijing 100036,China;Shanghai Marine Diesel Engine Research Institute,Shanghai 201108,China)

机构地区：[1]海装装备项目管理中心,北京100036 [2]上海船用柴油机研究所,上海201108

出　　处：《柴油机》2024年第3期39-43,共5页Diesel Engine

摘　　要：针对某型高强化指标船用柴油机止推轴承在试验过程中出现的异常磨损问题,采用三维弹性流体动力学仿真分析方法,比较不同轴向力、油槽、油孔结构对止推轴承承载能力及润滑特性的影响规律并进行试验验证。试验结果表明:当止推轴承承受的轴向力增加时,峰值总压及平均热载最大值无明显变化,但区域有所扩展;采用更利于止推工作面滑油流通的油槽、油孔结构对止推轴承的润滑特性有较大改善,可显著提高其承载能力。In response to the abnormal wear problem of a certain type of highly-strengthened marine diesel engine thrust bearing during experiment,a three-dimensional elastic fluid dynamics simulation analysis method was adopted to compare the influence of different axial forces,oil grooves,and oil hole structures on the load-carring capacity and lubrication characteristics of the thrust bearing and experimental verification was conducted.The experimental results show that:As the axial force borne by the thrust bearing increases,there is no significant change in the peak total pressure and the maximum average thermal load,but the region expands;The use of oil grooves and oil hole structures that are more conducive to the flow of lubricating oil on the working surface of thrust plates can greatly improve the lubrication characteristics of thrust bearings and significantly enhance their load-carring capacity.

关 键 词：柴油机 止推轴承 承载能力 润滑特性 

分 类 号：TK423.31[动力工程及工程热物理—动力机械及工程]