The Design and Prototype Manufacture of Helical Gear Reducers with Two Gear Pairs

Abstract:

Due to the reasons of manufacture cost and mechanical efficiency, the gear transmissions for electric vehicles are helical gear reducers. For electric vehicles, the reduction ratios are required to be 11~30 and their gear reducers are helical gear reducer with two gear pairs. This paper focused on the design and prototype manufacture of helical gear reducers with two gear pairs. First, according to the kinematic requirements of electric vehicles, their reduction ratios were derived. Then, based on the involute theorem, the gear data of helical spur gear pairs we obtained. Finally, according to the gear data, its corresponding engineering drawings were accomplished and its corresponding prototype was manufactured. The results of this paper can be used as reference for engineers to design the gear reducers for electric vehicles.

• Periodical: Applied Mechanics and Materials (Volume 883)
• Pages: 37-42
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.883.37
• Online since: July 2018
• Authors: Tzu Hsia Chen, Long Chang Hsieh*
• Keywords: Electric Vehicle, Gear Data, Helical Gear Reducer, Prototype Manufacture

References

[1] L.W. Tsai: An algorithm for the kinematic analysis of epicyclic gear trains, Proc. 9th Applied Mechanisms Conf., Kansas City, Missouri, 1, (1985), p.1.

[2] L.C. Hsieh, H.S. Yan and L.I. Wu: An algorithm for the automatic kinematic analysis of planetary gear trains by fundamental circuit method, Journal of the Chinese Society of Mechanical Engineers, Vol. 10(2) (1989), p.153.

[3] L.C. Hsieh, H S. Yan: Generalized kinematic analysis of planetary gear trains, International Journal of Vehicle Design, Vol. 13(5/6) (1992), p.494.

[4] C.A. Nelson, R.J. Cipra: Simplified kinematic analysis of bevel epicyclic gear trains with application to power-flow and efficiency analyses, ASME Transactions, Journal of Mechanical Design, Vol. 127 (2005), p.278.

DOI: 10.1115/1.1814392

[5] M.C. Tsai, C.C. Huang: Kinematic analysis of planetary gear systems using block diagrams, ASME Transactions, Journal of Mechanical Design, 132, 065001.(2010).

DOI: 10.1115/1.4001598

[6] L.C. Hsieh, H.S. Yan: Kinematic design of auto-motive gear differentials, Journal of the Chinese Society of Mechanical Engineers, Vol. 14( 3) (1993), p.240.

[7] L.C. Hsieh, J.Y. Liu and M.H. Hsu: Systematic design of south pointing chariots with planetary gear trains, Transaction of Canadian Society for Mechanical Engineering, Vol. 20(4) (1996), p.421.

DOI: 10.1139/tcsme-1996-0024

[8] L.C. Hsieh: An efficient method for the kinematic design of coupled gear differentials for automobiles, Journal of Applied Mechanisms and Robotics, Vol. 4(1) (1997), p.7.

[9] L.C. Hsieh: A method for the kinematic design of multispeed automatic transmissions, Proceeding of 10th World Congress on the Theory of Machines and Mechanisms, Oulu, Finland, June 20-24 (1999), p.2374.

[10] C.H. Hsu: An analytic methodology for the kinematic synthesis of epicyclic gear mechanisms, ASME Transactions, Journal of Mechanical Design, Vol. 124(3) (2002) , p.574.

DOI: 10.1115/1.1485094

[11] W. M. Hwang, Y.L. Huang: Configuration design of six-speed automatic transmissions with two-degree-of-freedom planetary gear trains, Transactions of the Canadian Society for Mechanical Engineering, Vol. 29(1) (2005), p.41.

DOI: 10.1139/tcsme-2005-0003

[12] L.C. Hsieh, H.S. Lee and T.H. Chen: An algorithm for the kinematic design of gear transmissions with high reduction ratio, Materials Science Forum, Vol. 505-507 (2006), p.1003.

DOI: 10.4028/www.scientific.net/msf.505-507.1003

[13] L.C. Hsieh, M.H. Hsu and T.H. Chen: The design of six-speed gear hub for a bicycle, Machine Design and Research, Vol. 22(4) (2006), p.303.

[14] L.C. Hsieh, H.S. Lee and Z.Y. Wang: The design of planetary gear trains – application of optical fiber polishers, International Journal of Mechanical Engineering Education, Vol. 36(1) (2008), p.16.

DOI: 10.7227/ijmee.36.1.3

[15] L.C. Hsieh, T.H. Chen: On the Kinematics and Statics of Planetary Simple Gear Reducers, Journal of Advanced Materials Research, Vol. 591-593 (2012), p.2165.

DOI: 10.4028/www.scientific.net/amr.591-593.2165

[16] L.C. Hsieh, H.C. Tang: The Kinematics of Eight-speed Planetary Gear hubs for Bicycles, Journal of Applied Mechanics and Materials, Vol. 232 (2012), p.955.

DOI: 10.4028/www.scientific.net/amm.232.955

[17] L.C. Hsieh, H.C. Tang The Innovative Design of Automatic Transmissions for Electric Motorcycles," Transactions of the Canadian Society for Mechanical Engineering, Vol.37(3) (2013), p.741.

DOI: 10.1139/tcsme-2013-0062

[18] L.C. Hsieh, H.C. Tang: The Kinematic Design of 2K-2H Planetary Gear Reducers With High Reduction Ratio, Journal of Applied Mechanics and Materials, Vol. 319 (2013), p.610.

DOI: 10.4028/www.scientific.net/amm.319.610

[19] L.C. Hsieh, T.H. Chen and H.C. Tang: The Engineering Design of Helical Spur Gear Transmission with Single Gear pair for Electric Scooter," Journal of Applied Mechanics and Materials, Vols.764~765 (2015), p.374.

DOI: 10.4028/www.scientific.net/amm.764-765.374

[20] L.C. Hsieh, T.H. Chen and H.C. Tang : The Design and Meshing Efficiency Analysis of Helical Spur Gear Reducer with Single Gear Pair for Electric Scooter, Transactions of the Canadian Society for Mechanical Engineering, Vol. 39, No. 3 (2015).

DOI: 10.1139/tcsme-2015-0034

[21] L.C. Hsieh, T.H. Chen: The Engineering Design and Transmission Efficiency Verification of Helical Spur Gear Reducer with Single Gear Pair, Transactions of the Canadian Society for Mechanical Engineering, Vol. 40, No. 5 (2016), p.981.

DOI: 10.1139/tcsme-2016-0081