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| 标 题： |
A comparative experimental study on large size center and bi-directional offset spring-bed thrust bearing
大型中心双向偏心弹簧座推力轴承的比较实验研究 |
| 作 者： |
Shifu Yang
Wenbin Zheng
Mulong Jiang
Shiyuan Pei
Hua Xu |
| 关键词： |
Thrust bearing [推力轴承]
central support [ 中央支持]
offset support [ 偏移支撑]
experimental research [ 实验研究]
spring-supported [ 弹簧支撑] |
| 出版年： |
2020 |
| 期刊名： |
Proceedings of the Institution of Mechanical Engineers, Part J. Journal of engineering tribology
机械工程师学会会刊，J部分。工程摩擦学杂志 |
| 年卷期： |
2020, vol.234, no.1 |
| 摘 要： |
The central support tilting thrust bearing is widely used in the motor-generator unit, and the central support tilting thrust bearing performs poorly compared with the offset bearing. In order to improve the performance of the thrust bearing capable of the bidirectional operation, a spring-supported switching tilting thrust bearing was designed, which could run under offset condition at both clockwise and counterclockwise. In order to verify the reliability of the bearing, we designed a true size thrust bearing test bench and measured the performance parameters of the temperature, pressure, oil film thickness, and power loss of the pad. This article introduces in detail the operation mechanism of the bidirectional offset spring-bed tilting thrust bearing. The bidirectional offset spring-bed tilting thrust bearing structure and the central support bearing structure were compared and tested. The test results of the performance difference of large tilting pad bearings with different structures were obtained. According to the experiment, the spring support structure has good adaptability, and the improved bidirectional offset support bearing not only has higher bearing capacity, but also has better performance in all aspects of temperature rise and loss than the central support bearing. The actual size experiment provides the experimental data for the theoretical calculation of large tilting pad bearings, providing a more accurate basis for the bearing performance and safety assessment.
中心支撑倾角推力轴承广泛应用于电机发电机装置中，其性能相比偏心轴承较差。为了提升双向运行推力轴承的性能，设计了一种弹簧支撑式切换倾角推力轴承，该轴承可在顺时针和逆时针方向均处于偏心状态运行。为验证轴承的可靠性，我们设计了真实尺寸的推力轴承试验台，并对垫片的温度、压力、油膜厚度及功率损耗等性能参数进行了测量。本文详细介绍了双向偏心弹簧床倾角推力轴承的工作原理，对比并测试了双向偏心弹簧床倾角推力轴承结构与中心支撑轴承结构，获得了不同结构大型倾角垫片轴承性能差异的测试结果。根据实验结果，弹簧支撑结构具有良好的适应性，改进的双向偏移支撑轴承不仅承载能力更高，而且在温度升高和降低方面的各项性能也优于中心支撑轴承。实际尺寸试验为大型倾覆式垫片轴承的理论计算提供了实验数据，为轴承性能与安全评估提供了更准确的基础。 |
| 中文内容为网络AI翻译，专业术语未必准确，仅供参考。 |
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