Influence of the Carrier Pinhole Position Errors on the Load Sharing of a Planetary Gear Train
Load sharing among planetary gears, one of the design variables, has a significant influence on the performance and service life of a gearbox. This study involved simulating and testing the design parameters related to load sharing among planetary gears. In this regard, the influence of errors in the carrier pinhole position on the load sharing among the planetary gears was analyzed. The results showed that the difference between the simulation results using the model and the laboratory test results was less than 10%. Furthermore, similar tendencies were observed according to the magnitude of the load applied to the planetary gears. As for the design parameters affecting load sharing, the service life of a gearbox containing planetary gears can be extended by using a floating system as opposed to a non-floating system. In addition, reduced planetary pin diameter and increased planetary bearing clearance leads to appropriate load sharing among the planetary gears and increases the service life and floating effect of the gearbox.
KeywordsPlanetary gearbox Carrier Pinhole position error Load sharing
Unable to display preview. Download preview PDF.
- 1.American Gear Manufacturers Association, “Design Manual for Enclosed Epicyclic Gear Drives,” ANSI/AGMA 6123-B6106, 2006.Google Scholar
- 2.American Gear Manufacturers Association (AGMA), “Accuracy Classification System-Tangential Measurements for Cylindrical Gears,” ANSI/AGMA 2015-1-A01, 2002.Google Scholar
- 8.LaCava, W. and McNiff, B., “Gearbox Reliability Collaborative: Test and Model Investigation of Sun Orbit and Planet Load Share in a Wind Turbine Gearbox,” Proc. of 53rd AIAA/ASME/ASCE/AHS/ ASC Structures, Structural Dynamics and Materials Conference, AIAA 2012-1418, 2012.Google Scholar
- 10.Romax Technology Ltd., “Romax Designer Software Manual,” 2003.Google Scholar
- 11.Abe, T., Cheng, Y., and Felice, M., “Advanced CAE Methods for Automotive Drivetrain System Gear Whine Optimization,” Proc. of MPT2009-Sendai, JSME International Conference on Motion and Power Transmission, pp. 1–15, 2009.Google Scholar
- 14.Kamaya, F., Eccles, M., and Pears, J., “A Rapid Method for the Investigation of System-Wide Parameter Variation Effects on Epicyclic Gear Whine,” Transactions of Society of Automotive Engineers of Japan, Vol. 39, No. 6, pp. 6_47–46_52, 2008.Google Scholar
- 16.Park, Y.-J., Lee, G.-H., Kim, J.-K., Song, J.-S., and Park, S.-H., “Analysis of Load Distribution and Sharing on the Planetary Reducer for Wind Turbines,” Journal of the Korean Society of Manufacturing Technology Engineers, Vol. 20, No. 6, pp. 830–836, 2011.Google Scholar
- 18.Hong, S. O. and Cho, G. J., “A Study on Preload and Arragement of Combined Bearing on Feed Drive System,” Proc. of KSMTE Autumn Conference, pp. 440–445, 1999.Google Scholar
- 19.Lee, C.-H., “Optimization of Spindle Units Considering the Decrease of Bearing Stiffness at High Speed Revolution,” Journal of the Korean Society of Manufacturing Technology Engineers, Vol. 19, No. 6, pp. 717–723, 2010.Google Scholar
- 20.Yeo, E. G., Kim, Y. R., Han, G. G., Park, M. U., Yu, H. I., and Lee, Y. S., “A Study on the Effects of the Bearing Parameters on the Main Spindle Design of Machine Tool,” Journal of the Korean Society of Manufacturing Technology Engineers, Vol. 7, No. 1, pp. 119–119, 1998.Google Scholar