Flank error correction of hypoid gears based on regression analyses

TIAN Cheng; DING Weiqi; GUI Liangjin; FAN Zijie

doi:10.16511/j.cnki.qhdxxb.2017.22.005

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Journal of Tsinghua University(Science and Technology) ›› 2017, Vol. 57 ›› Issue (2) : 141-146. DOI: 10.16511/j.cnki.qhdxxb.2017.22.005

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Flank error correction of hypoid gears based on regression analyses

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Abstract

Tooth surface equations are derived based on the hypoid-format-tilt (HFT) method to calculate the machine parameter correction for the flank machining error of hypoid gears. The tooth surface discretization method is given for the flank machining error. The sensitivity coefficient for the flank error machine parameters is used to develop a mathematical model for the flank error correction method to identify its disadvantages based on a regression analysis. The linear dependence of the sensitivity coefficient vector of the machine parameters is compared with the real flank error vector to identify the variables for the regression analysis, which reduces the number of machine parameters to be adjusted. Tests of the flank error correction of a real gear show the above advantages and the effectiveness of this method. Guidelines are given for other flank error correction problems.

Key words

hypoid gear / machine setting parameters / flank error correction / regression analysis / hypoid format tilt

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TIAN Cheng, DING Weiqi, GUI Liangjin, FAN Zijie. Flank error correction of hypoid gears based on regression analyses[J]. Journal of Tsinghua University(Science and Technology). 2017, 57(2): 141-146 https://doi.org/10.16511/j.cnki.qhdxxb.2017.22.005

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