船用泵水润滑轴承润滑性能试验研究

发布时间：2018-01-08 21:00

本文关键词：船用泵水润滑轴承润滑性能试验研究　出处：《上海交通大学》2012年硕士论文　论文类型：学位论文

【摘要】：船用泵水润滑轴承的润滑性能受轴承材料、结构、工况等因素影响很大。如何选择和设计水润滑轴承的材料、结构,并使之在各种工况下具有良好的工作性能,目前尚无满意的方法。由于水的物理性能与传统润滑油的巨大差异,以及水润滑轴承结构的复杂性,对水润滑机理的研究还没有取得重要进展和突破。因此,通过试验手段进行研究,是一个重要的解决办法。本文课题来源于国防预研项目。针对水润滑轴承研究的现状,本文从轴承结构,润滑性能等方面着手进行试验研究。选择轴承材料为高分子聚四氟乙烯复合材料,设计了六导水槽的轴承结构。选择摩擦因数、摩擦功耗、润滑剂温升三者作为轴承润滑性能的评价指标,通过系统的试验,考察了轴承润滑性在不同的载荷、转速、供水量、轴承间隙条件下的变化规律。取得了如下成果: (1)验证了高分子聚四氟乙烯复合材料用于轴承材料的可行性。 (2)验证了六导水槽轴承结构设计的合理性。 (3)考察了特定结构和间隙的轴承的润滑性能在不同工况下的摩擦因数、功耗及温度分布的内在联系。找出了轴承的最佳间隙,为轴承结构优化,轴承最佳间隙设计提供了试验依据。
[Abstract]:The lubricating performance of water lubricated bearing of marine pump is greatly affected by bearing material, structure, working condition and so on. How to select and design the material and structure of water lubricated bearing and make it have good working performance under various working conditions. At present, there is no satisfactory method. Because of the great difference between the physical properties of water and the traditional lubricating oil, and the complexity of water lubricating bearing structure, the research on the mechanism of water lubrication has not made important progress and breakthrough. Research by means of experiments is an important solution. The subject of this paper comes from the national defense advance research project. In view of the present situation of water lubricated bearing, this paper studies the bearing structure and lubricating performance, and selects the bearing material as the polymer PTFE composite material. The bearing structure of six-guide tank was designed. Friction coefficient, friction power consumption and lubricant temperature rise were selected as the evaluation indexes of bearing lubrication performance. Through systematic tests, the lubricity of bearing under different loads was investigated. Changes of speed, water supply and bearing clearance. The results are as follows: The feasibility of using high molecular polytetrafluoroethylene (PTFE) composite as bearing material is verified. The rationality of the structural design of the six-guide flume bearing is verified. The internal relations of friction coefficient, power consumption and temperature distribution of bearing with special structure and clearance under different working conditions are investigated. The optimum clearance of bearing is found out, which is the optimization of bearing structure. The optimum clearance design of bearing provides experimental basis.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：U664.58;TH133.3

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