平衡梁结构对水润滑可倾瓦推力轴承启停过程的影响

doi:10.3901/JME.2020.01.082

机械工程学报 ›› 2020, Vol. 56 ›› Issue (1): 82-90.doi: 10.3901/JME.2020.01.082

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平衡梁结构对水润滑可倾瓦推力轴承启停过程的影响

王占朝¹, 郭飞¹, 刘莹¹, 龚常亮², 刘向锋¹, 王玉明¹

1. 清华大学摩擦学国家重点实验室北京 100084;
2. 湖南崇德工业科技有限公司长沙 411100

收稿日期:2019-02-04 修回日期:2019-06-18 出版日期:2020-01-05 发布日期:2020-03-09
通讯作者: 刘莹(通信作者),女,1965年出生,博士,副教授,博士研究生导师。主要研究方向为围绕特殊与极端工况下关键零部件摩擦学性能设计开展基础和工程应用研究。E-mail:liuying@mail.tsinghua.edu.cn
作者简介:王占朝,男,1982年出生,博士。主要研究方向为水润滑可倾瓦推力轴承的启停过程分析。E-mail:wzcfirst@163.com
基金资助:
国家重点基础研究发展计划（973计划/2015CB057303）和国家自然科学基金（51735006）资助项目。

Influence of the Equalizing Beam Structure on the Water Lubrication Tilting-pad Thrust Bearing during Start-up and Shut-down

WANG Zhanchao¹, GUO Fei¹, LIU Ying¹, GONG Changliang², LIU Xiangfeng¹, WANG Yuming¹

1. The State Key Laboratory of Tribology, Tsinghua University, Beijing 100084;
2. Hunan SUND Industrial and Technological Co., Ltd., Changsha 411100

Received:2019-02-04 Revised:2019-06-18 Online:2020-01-05 Published:2020-03-09

摘要/Abstract

摘要： 建立了带平衡梁结构的水润滑可倾瓦推力轴承启停过程瞬态模型，在该模型中考虑了界面滑移、挤压作用和支点变形的影响。采用该模型分析了相同运行条件下平衡梁结构与非平衡梁结构的可倾瓦推力轴承的启停过程。分析结果表明：随着瓦面高度误差的增加，轴承的启停转速增加。设计了一套水润滑可倾瓦推力轴承机理研究试验系统，包括平衡梁与非平衡梁结构的可倾瓦推力轴承，并对两种轴承的启停过程进行试验。试验结果表明：非平衡梁结构可倾瓦推力轴承各瓦之间的载荷误差达到90%，而平衡梁结构可倾瓦推力轴承各瓦之间的载荷误差小于4.6%。平衡梁结构可以降低轴承的启停转速，同时提高轴承加工及安装误差的最大许可范围。试验结果与理论分析结果取得较好的一致性。

关键词: 水润滑, 可倾瓦推力轴承, 平衡梁, 启停过程

Abstract: A transient model of tilting-pad thrust bearing with equalizing beam structure during start-up and shut-down is established. In this model, interface slippage, squeezed and the wear of the pivot are considered in this transient model. Under the same operation conditions and geometrical dimensions of thrust pad, the starting characteristics of tilting-pad thrust with and without equalizing beam structure are studied. Numerical analysis results show that equalized beam structure could reduce opening speed of the tilting pad thrust bearing. As the installation error increase with the opening speed increase, therefore, equalizing beam structure reduce the installation requirements of tilting-pad thrust bearing. A scaled test rig of tilting-pad thrust bearing with equalizing beam structure or without equalizing beam structure is designed. The experimental results show that, compared with the thrust bearing with equalizing beam, the maximum load difference of each pad are more than 90% in tilting-pad thrust bearing without equalizing beam structure, the difference value of the tilting-pad thrust bearing with equalizing beam structure is less than 4.6%. Equalizing beam structure could reduce the opening speed and increase the tolerance of installation error. The experimental results are consistent with the numerical results.

Key words: water lubrication, tilting-pad thrust bearing, equalizing beam, start-up and shut-down

中图分类号:

TH117

王占朝, 郭飞, 刘莹, 龚常亮, 刘向锋, 王玉明. 平衡梁结构对水润滑可倾瓦推力轴承启停过程的影响[J]. 机械工程学报, 2020, 56(1): 82-90.

WANG Zhanchao, GUO Fei, LIU Ying, GONG Changliang, LIU Xiangfeng, WANG Yuming. Influence of the Equalizing Beam Structure on the Water Lubrication Tilting-pad Thrust Bearing during Start-up and Shut-down[J]. Journal of Mechanical Engineering, 2020, 56(1): 82-90.

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平衡梁结构对水润滑可倾瓦推力轴承启停过程的影响

Influence of the Equalizing Beam Structure on the Water Lubrication Tilting-pad Thrust Bearing during Start-up and Shut-down

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