| 石墨水润滑动压推力轴承的起飞转速及磨损的量化研究 |
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| 引用本文： | 王瑞,贾谦,袁小阳. 石墨水润滑动压推力轴承的起飞转速及磨损的量化研究[J]. 中国机械工程, 2021, 32(3): 269-274. DOI: 10.3969/j.issn.1004-132X.2021.03.003 |
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| 作者姓名： | 王瑞 贾谦 袁小阳 |
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| 作者单位： | 1.西安交通大学现代设计及转子轴承系统教育部重点实验室，西安，7100492.西安交通大学城市学院机械工程学院，西安，710018 |
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| 基金项目： | 国家自然科学基金（51775412） |
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| 摘 要： | 针对极端工况下石墨水润滑动压推力轴承的起飞转速及磨损难以量化的问题,利用核主泵半尺寸轴承对量化方法展开研究.建立了石墨水润滑可倾瓦推力轴承模型,采用摩擦副粗糙度作为衡量指标计算了理论起飞转速,并与起飞转速台架试验结果进行了对比;使用质量磨损率作为衡量磨损量化标准,进行了小试样试验和启停台架试验,二者结合对石墨不锈钢摩擦...
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| 关 键 词： | 石墨 推力轴承 起飞转速 磨损 量化 |
Quantitative Research of Take-off Speeds and Wear of Graphite Water-lubricated Hydrodynamic Thrust Bearings |
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| WANG Rui,JIA Qian,YUAN Xiaoyang. Quantitative Research of Take-off Speeds and Wear of Graphite Water-lubricated Hydrodynamic Thrust Bearings[J]. China Mechanical Engineering, 2021, 32(3): 269-274. DOI: 10.3969/j.issn.1004-132X.2021.03.003 |
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| Authors: | WANG Rui JIA Qian YUAN Xiaoyang |
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| Affiliation: | 1.Key Laboratory of Modern Design and Rotor Bearing System,Ministry of Education,Xian Jiaotong University,Xian,7100492.Department of Mechanical Engineering,Xian Jiaotong University City College,Xian,710018 |
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| Abstract: | Aiming at the problems that it was difficult to quantify the take-off speeds and wear of graphite water-lubricated hydrodynamic thrust bearings under the extreme conditions, the quantitative method was studied by using the half-size bearing of a nuclear reactor coolant pump. The model of a graphite water-lubricated tilting-pad thrust bearings was established. The theoretical take-off speed was calculated by using the surface roughness of friction pairs as the measurement index and compared with the experimental results by a bench test. Using the mass wear rate as the standard for measuring the wear, the small sample test and the start-stop bench test were both carried out to investigate the graphite-stainless steel friction pairs. The results show that the errors of take-off speeds between the theoretical and experimental results are as 20%, which proves the feasibility of the theoretical calculation method. The errors between the small sample test and the start-stop bench test are as 39.2%. The small sample test may be used to predict or evaluate the bench test results, and both of the two test results are comprehensively analyzed to guide the theoretical calculation. |
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| Keywords: | graphite thrust bearing take-off speed wear quantify |
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