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Friction moment calculation method for tapered roller bearings under combined loads

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Tapered roller bearings(TRBs)can withstand axial loads,radial loads,and overturning moments.The performance,safety,and efficiency of rotating machinery are directly influenced by the friction moments within the TRBs.However,most current research has relied on empirical formulas that focus on axial loads.Additionally,the friction coefficient between the rollers and the inner ring rib has been defined using simple empirical methods.In actual applications,the loads on TRBs are not purely axial or radial,and simple empirical friction coefficients do not adequately account for the varying lubrication conditions.To address this challenge,this study proposes an improved method for calculating the friction moments of TRB under combined axial and radial loads.This study employs a calculation method for sliding friction coefficients that can model dry,boundary,elastohy-drodynamic,and mixed lubrication conditions.To demonstrate the advantages of the proposed method,the friction moments obtained using the existing and proposed methods are compared.Additionally,the influence of TRB structural parameters on the friction moment is discussed.An experimental study is conducted to validate the effectiveness of the proposed method.The findings provide valuable insights for designing TRB structural parameters to minimize friction moments.

tapered roller bearingfriction momentstructural parameterscombined loads

LI XinBin、LIU Jing、HUANG SuHe、PAN Guang

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School of Marine Science and Technology,Northwestern Polytechnical University,Xi'an 710072,China

Key Laboratory for Unmanned Underwater Vehicle,Northwestern Polytechnical University,Xi'an 710072,China

System Engineering Research Institute,Beijing 100094,China

National Natural Science Foundation of ChinaScience Center for Gas Turbine ProjectInnovation Foundation for Doctor Dissertation of Northwestern Polytechnical University

521751202022-B-Ⅲ-003

2024

中国科学:技术科学(英文版)
中国科学院

中国科学:技术科学(英文版)

CSTPCDEI
影响因子:1.056
ISSN:1674-7321
年,卷(期):2024.67(8)
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