Novel Measurement Method of Tooth Surface Contact Temperature for Spur Gear Pair Based on Seebeck Effect

doi:10.3901/JME.2022.15.263

Abstract

Abstract: The meshing characteristics of gears is affected by the increase of tooth contact temperature which is caused by the heat energy converted from the mechanical energy consumed by tooth friction in its transmission process.An accurate measurement is helpful to reveal the variation law and establish a more accurate calculation method of the tooth surface contact temperature.A novel direct experimental measurement method based on the Seebeck effect is proposed and a test rig is developed.It can directly obtain the real-time tooth surface contact temperature at any point in the direction of tooth height continuously.The tooth surface contact temperature of the spur gear pair considered the multi-state meshing characteristics, load distribution and lubrication is calculated based on the Blok flash temperature theory.The measurement uncertainty and the absolute deviation between the experimental measurement results and the calculated one are calculated to analyse the consistency and their error causes are discussed.The measurement results of the tooth surface contact temperature are affected by pitch deviation, tooth profile error, lubrication, meshing point and so on in the test rig.This proves that the proposed experimental measurement method, the division of multi-state meshing region and the test rig are effective and accurate.It can lay a foundation for temperature prediction and control of the gear system.

Key words: tooth surface contact temperature, spur gear, Seebeck effect, direct experimental measurement

CLC Number:

TH132
O322

ZHU Lingyun, GOU Xiangfeng, CHAI Changyin, QI Changjun, SHI Jianfei, SHEN Jiazhi. Novel Measurement Method of Tooth Surface Contact Temperature for Spur Gear Pair Based on Seebeck Effect[J]. Journal of Mechanical Engineering, 2022, 58(15): 263-273.

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