Thermal film-forming ability of grease lubrication at roller-raceway pair in tapered roller bearings

doi:10.3785/j.issn.1008-973X.2020.03.005

Journal of ZheJiang University (Engineering Science)

2020, Vol. 54

Issue (3): 459-466 DOI: 10.3785/j.issn.1008-973X.2020.03.005

Mechanical Engineering

Thermal film-forming ability of grease lubrication at roller-raceway pair in tapered roller bearings

Zheng–hai WU(

),Ying–qiang XU*(

),Kai–an LIU,Xing ZHAO

School of Mechanical and Electrical Engineering, Northwestern Polytechnical University, Xi’an 710072, China

Download:

HTML

PDF(8211KB) HTML
Export: BibTeX | EndNote (RIS)

Abstract

Considering non-equal section properties and grease lubrication condition of tapered roller bearings, the grease thermal lubrication model at the roller-raceway pair was established based on the Power-law rheological model of greases, combining with the energy equation of grease film and the heat conduction equation of the roller/raceway. The effects of roller crowning, sliding, tilting and skewing on the grease lubrication and traction action were analyzed. Results show that when no tilting or skewing occured, the minimum film thickness of the Lundberg crowned roller was slightly thicker than that of the cut-off crowned roller, while the film pressure peak was slightly thicker than that of the cut-off crowned roller. After considering the temperature effect, the film thickness decreased and the pressure peak increased. The tilting motion causes the reduce of the minimum film thickness and the increase of the film pressure and the necking at the main loaded end. Therefore, the effect of the tilting motion should be considered when crowning the tapered roller. The skewing motion brings less effect to the grease film thickness and pressure distribution. The traction coefficient at the roller-raceway pair increases first and then decreases with aggravation of bearing sliding.

Key words： tapered roller bearing grease lubrication film-forming ability crowning tilting motion skewing motion

Received: 02 March 2019 Published: 05 March 2020

CLC:

TH 133.3

Corresponding Authors: Ying–qiang XU E-mail: wzhawt@163.com;xuyngqng@nwpu.edu.cn

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Zheng–hai WU
	Ying–qiang XU
	Kai–an LIU
	Xing ZHAO

Cite this article:

Zheng–hai WU,Ying–qiang XU,Kai–an LIU,Xing ZHAO. Thermal film-forming ability of grease lubrication at roller-raceway pair in tapered roller bearings. Journal of ZheJiang University (Engineering Science), 2020, 54(3): 459-466.

URL:

http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2020.03.005 OR http://www.zjujournals.com/eng/Y2020/V54/I3/459

圆锥滚子轴承滚子/滚道副的脂润滑热成膜性能

考虑圆锥滚子轴承的非等截面属性和脂润滑状态，基于润滑脂Power-law流变模型，结合脂膜能量方程和固体热传导方程，建立轴承滚子与滚道接触的非等温脂润滑模型，分析滚子修形、打滑、歪斜和倾斜等对接触副脂润滑热成膜性能和拖动性能的影响. 结果表明：在未发生倾斜或歪斜时，Lundberg对数母线修形滚子的最小膜厚略大于切交母线修形滚子，而压力峰值略小于切交母线修形滚子. 在考虑温度效应后，脂膜厚度减小，压力峰值增大. 倾斜运动导致滚子主要承载端的脂膜压力和颈缩量增加，膜厚减小，因此滚子修形应考虑倾斜运动的影响；歪斜运动对膜厚和压力分布的影响则相对较小. 滚子/滚道副的脂润滑拖动系数随打滑加剧呈现先增大后减小的趋势.

关键词： 圆锥滚子轴承, 脂润滑, 成膜性能, 修形, 倾斜运动, 歪斜运动

Fig.1 Contact between tapered roller and raceway

Tab.1 Non-structural parameters of raceway pair and grease with temperature of 30 °C

Fig.2 Boundary conditions of temperature field

Fig.3 Isothermal and thermal grease lubrication at roller-raceway pair

Fig.4 Effect of roller skewing on grease lubrication

Fig.5 Effect of roller tilting on grease lubrication

Fig.6 Traction coefficient of grease lubrication at roller-raceway pair


[1]	LUGT P M. Grease lubrication in rolling bearings[M]. West Sussex: Wiley, 2013: xvii.

[2]	DENG S E, GU J F, CUI Y C, et al Dynamic analysis of a tapered roller bearing[J]. Industrial Lubrication and Tribology, 2017, 70 (1): 191- 200

[3]	汤武初, 王敏杰, 陈光东, 等高速列车故障轴箱轴承的温度分布研究[J]. 铁道学报, 2016, 38 (7): 50- 56 TANG Wu-chu, WANG Min-jie, CHEN Guang-dong, et al Analysis on temperature distribution of failure axle box bearings of high speed train[J]. Journal of The China Railway Society, 2016, 38 (7): 50- 56 doi: 10.3969/j.issn.1001-8360.2016.07.007

[4]	TARAWNEH C M, MALDONADO R K, FUENTES A A, et al A vibration energy approach used to identify temperature trending in railroad tapered roller bearings[J]. International Journal of Acoustics and Vibrations, 2015, 20 (2): 69- 80

[5]	WEN S Z, YING T N A theoretical and experimental study of EHL lubricated with grease[J]. Journal of Tribology, 1988, 110 (1): 38- 43 doi: 10.1115/1.3261572

[6]	BUJURKE N M, KANTLI M H, SHETTAR B M Jacobian free Newton-GMRES method for the solution of elastohydrodynamic grease lubrication in line contact using wavelet based pre-conditioners[J]. Proceedings of the National Academy of Sciences, India Section A: Physical Sciences, 2017, 88: 247- 265

[7]	CHENG J Elastohydrodynamic grease lubrication theory and numerical solution in line contacts[J]. Lubrication Engineering, 1990, 37 (4): 711- 718

[8]	ZHANG C, WANG S, ZHANG Y. Pressure distribution analysis of elastohydrodynamic journal bearing under grease lubrication[C] // International Conference on Fluid Power and Mechatronics. Harbin: IEEE, 2015: 74-79.

[9]	LUGT P M Modern advancements in lubricating grease technology[J]. Tribology International, 2016, 97: 467- 477 doi: 10.1016/j.triboint.2016.01.045

[10]	KAUZLARICH J, GREENWOOD J A Elastohydrodynamic lubrication with Herschel-Bulkley model greases[J]. ASLE Transactions, 1972, 15 (4): 269- 277 doi: 10.1080/05698197208981427

[11]	YOO J G, KIM K W Numerical analysis of grease thermal elastohydrodynamic lubrication problems using the Herschel-Bulkley Model[J]. Tribology International, 1997, 30 (6): 401- 408 doi: 10.1016/S0301-679X(96)00069-2

[12]	CHO Y, EUNSOO C, KIRKLANDJR W The rheology and hydrodynamic analysis of grease flows in a circular pipe[J]. ASLE Transactions, 1993, 36 (4): 545- 554

[13]	刘明勇, 朱才朝, 刘怀举有限长线接触非牛顿热弹流润滑分析[J]. 润滑与密封, 2014, 39 (2): 48- 55 LIU Ming-yong, ZHU Cai-chao, LIU Huai-ju A thermal EHL model for finite line contact with non-Newtonian fluids[J]. Lubrication Engineering, 2014, 39 (2): 48- 55 doi: 10.3969/j.issn.0254-0150.2014.02.010

[14]	WANG Z J, SHEN X J, CHEN X Y, et al Experimental investigation of EHD grease lubrication in finite line contacts[J]. Friction, 2018, 7: 237- 245

[15]	汪久根, 洪玉芳圆锥滚子摩擦副的润滑分析(I)刚性等粘度润滑区[J]. 浙江大学学报: 工学版, 2003, 37 (2): 208- 210 WANG Jiu-gen, HONG Yu-fang Lubrication of tapered roller bearing(I) Isoviscous rigid regime[J]. Journal of Zhejiang University: Engineering Science, 2003, 37 (2): 208- 210

[16]	汪久根, 洪玉芳圆锥滚子摩擦副的润滑分析(II)压粘刚性润滑区[J]. 浙江大学学报: 工学版, 2003, 37 (3): 358- 361 WANG Jiu-gen, HONG Yu-fang Lubrication of tapered roller bearing(II) Piezoviscous rigid regime[J]. Journal of Zhejiang University: Engineering Science, 2003, 37 (3): 358- 361

[17]	LUNDBERG G Elastische berührung zweier halbr?ume[J]. Forschung auf dem Gebiete des Ingenieurwesens, 1939, 10 (5): 201- 211

[18]	TONG V C, HONG S W Characteristics of tapered roller bearings in relation to roller profiles[J]. Journal of Mechanical Science and Technology, 2015, 29 (7): 2913- 2919 doi: 10.1007/s12206-015-0622-z

[19]	ROELANDS C J A, VLUGTER J C, WATERMAN H I The viscosity-temperature-pressure relationship of lubricating oils and its correlation with chemical constitution[J]. Journal of Fluids Engineering, 1963, 85 (4): 601- 607

[20]	SADEGHI F, SUI P C Thermal elastohydrodynamic lubrication of rolling/sliding contacts[J]. Journal of Tribology, 1990, 112 (2): 189- 195 doi: 10.1115/1.2920241

[21]	LIU S B, WANG Q, LIU G A versatile method of discrete convolution and FFT (DC-FFT) for contact analyses[J]. Wear, 2000, 243 (1-2): 101- 111 doi: 10.1016/S0043-1648(00)00427-0

[22]	杨沛然, RODIEWICZ C M 对称可倾瓦推力轴承的热弹性流体动力润滑[J]. 润滑与密封, 1994, (2): 18- 27 YANG Pei-ran, RODIEWICZ C M Thermoelastohydrodynamic lubrication for symmetrically supported tilting-pad thrust bearings[J]. Lubrication Engineering, 1994, (2): 18- 27

[23]	MARCUS B. Friction in elastohydrodynamic lubrication[D]. Lule?: Lule? University of Technology, 2014.

[1]	YUAN Xing, ZHANG You-yun, ZHU Yong-sheng, HONG Jun，QI Wen-chang. Fault degree evaluation for rolling bearing combining backward inference with forward inference[J]. Journal of ZheJiang University (Engineering Science), 2012, 46(11): 1960-1967.

[2]	YANG Xian-yong, ZHOU Xiao-jun, ZHANG Wen-bin, YANG Fu-chun, LIN Yong. Rolling bearing fault feature extraction based on morphological wavelet and S-transform[J]. Journal of ZheJiang University (Engineering Science), 2010, 44(11): 2088-2092.

[3]	YANG Xian-Yong, ZHOU Xiao-Jun, LIN Yong, ZHANG Wen-Bin, CHEN Lu. Fault diagnosis approach for rolling bearing based on V-detector algorithm[J]. Journal of ZheJiang University (Engineering Science), 2010, 44(9): 1805-1810.

[4]	YANG Xian-Yong, ZHOU Xiao-Jun, ZHANG Wen-Bin, YANG Fu-Chun. Rolling bearing fault diagnosis based on local wave method and KPCA-LSSVM[J]. Journal of ZheJiang University (Engineering Science), 2010, 44(8): 1519-1524.

Viewed

Full text

Abstract

Cited

Shared

Discussed