A simulation study on optimal oil spraying mode for high-speed rolling bearing

• Autorzy: Pang, B. T. , Li, J. S. , Liu, H. B. , Ma, W. , Xue, Y. J.
• Języki publikacji: EN

Abstrakty

EN

Purpose: In this study, a numerical simulation model of the oil spraying system is established. Design/methodology/approach: Spraying lubrication is a common form of the rolling bearing lubrication. But with the increase of the bearing speed, the roller cage is frequently shattered, which may lead to failure of the bearing. The shatter of roller cage may be related to the spraying mode of oil. For high-speed rolling bearing, the roller cage shatter can be cracked due to the shortage of oil, caused by lubricating oil not sprayed into the roller cage shatter. This condition can be ameliorated by changing the spraying mode of oil supply system. The model considered the spraying speed, spraying angle, oil pressure, oil viscosity, structure of roller cage shatter, rotating speed as the main parameters. By optimization, the best way of oil spraying was obtained which can meet lubrication requirement of high-speed rolling bearing. At the same time, the numerical simulation results also revealed that the optimal spraying mode is different for different rolling bearings. Findings: The simulating results indicate that due to the effect of the air pressure and airflow thickness, the optimal spraying position is at a region closer to the inner ring of the bearings. Practical implications: This paper will provide useful information to applying numerical simulation of the oil spraying system. Originality/value: The computer simulation allows to better understand the interdependence between parameters of process and choosing optimal solution.

Słowa kluczowe

PL

wysokoobrotowe łożysko toczne; klatka walcownicza; symulacje numeryczne

EN

high-speed rolling bearing; roller cage shatter; optimal oil spraying mode; numerical simulation

• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2008
• Tom: Vol. 31, nr 2
• Strony: 553-557
• Opis fizyczny: Bibliogr. 6 poz., wykr., il.

Twórcy

autor

Pang, B. T.

autor

Li, J. S.

autor

Liu, H. B.

autor

Ma, W.

autor

Xue, Y. J.

• Xi'an Jiaotong University, Xi'an 710049, P. R. China,

Bibliografia

• [1] Y. T. Su, Signature analysis of roller bearing vibrations. Lubrication effects, Proceedings of the Institution of Mechanical Engineers, Part C: Mechanical Engineering Science 206/3 (1992) 193-202.
• [2] J. W. Wang, Behavior of oil-air lubrication using in roller bearings system, Journal of East China University of Science and Technology 33/3 (2007) 436-440.
• [3] J. Tsay, H. E. Ozkan, R. D. Brazee, et al, CFD simulation of mechanical spray shields, Transactions of the ASAE, 45/5 (2002) 1271-1280.
• [4] J. R. Tsay, L. S. Liang, L. H. Lu, Evaluation of an air assisted boom spraying system under a no2canopy condition using CFD simulation, Transactions of ASAE, 47/6 (2004) 1887-1897.
• [5] J. Tsay, H. E. Ozkan, R. D. Brazee, et al, CFD Simulation of moving spay shields, Transactions of ASAE, 45/1 (2002) 21-26.
• [6] W. Zhao, Z. Li, Numerical simulation of gras turbulence flow in FIS precalciner, Ind Furnace 24/2 (2002) 45-47.