本文从工程实践出发，论述行星传动装置中行星轮滑动轴承特点及分析处理方法。行星轮滑动轴承从结构、运动方式、承载及供油条件等方面与平行轴传动装置滑动轴承均有很大的不同，提出在考虑行星架公转及离心力影响情况下行星轮轴承载荷分析方法，并提出工程应用的处理方法及最小油膜厚度和最高温度两个判据。以某型两级行星传动装置为例，对其两级行星轮轴承进行性能分析与判据研究。分析结果表明，行星传动装置Ⅰ级行星轮轴承运行温度较高，应着重关注降低最高温度方法问题，Ⅱ级行星轮轴承运行最小油膜厚度较小，应着重关注提高最小油膜厚度方法问题。经试验验证，依据本文方法设计的行星轮轴承运行安全稳定，测点理论温度与实测温度变化趋势一致，验证了船舶行星轮轴承性能分析方法与判据的准确性，对行星传动装置行星滑动轴承设计具有指导意义。
Based on the engineering practice, this paper discusses the characteristics and analysis of the planet gear journal bearing in the planetary transmission device. Planetary gear bearings are quite different from plain bearings of parallel shaft transmission device in structure, motion mode, load and oil supply conditions. In this paper, the load analysis method of planet gear journal bearing considering the influence of revolution of planetary carrier and centrifugal force is proposed, and the treatment method of engineering application and two criterions of minimum oil film thickness and maximum temperature are put forward. Taking a two-stage planetary transmission device as an example, this paper studies the performance analysis and criterion of its two-stage planetary gear bearing, the analysis results show that the operation temperature of Ⅰ stage planetary gear bearing of the planetary transmission device is high, and the method of reducing the maximum temperature should be focused on. The minimum oil film thickness of Ⅱ stage planetary gear bearing is small, and the method of increasing the minimum oil film thickness should be focused on. The test results show that the planetary gear bearing designed according to the method in this paper is safe and stable, the theoretical temperature of the measuring point is consistent with the change trend of the measured temperature, and the accuracy of the performance analysis method and criterion of the planetary gear bearing is verified, which has guiding significance for the design of the planetary journal bearing of the planetary transmission device.
2020,42(10): 118-122 收稿日期：2020-01-19
DOI：10.3404/j.issn.1672-7649.2020.10.023
分类号：TH133.31
作者简介：王晓红(1982-)，女，硕士，高级工程师，研究方向为轮机工程
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