Influence of Wide-swath Machining Error on Transmission Error of Topological Modification Gear Transmission System

doi:10.3901/JME.2023.15.131

Abstract

Abstract: As an important way of high-performance gear modification, topological modification provides an effective method to improve the dynamic performance of transmission system. Based on the induced normal curvature, the formation mechanism of concave tooth profile error in topological modified gear is analysed, a bend-twist-axis-swing dynamics model of the gear system is established and the influence of wide-swath machining error on the transmission error of transmission system is studied. Through numerical calculation, the transmission error of transmission system under tooth profile modification error, tooth inclination error, tooth profile concave error, under-grinding and over-grinding machining errors are obtained. The evaluation method of dynamic transmission error of dimensionless gear system is established, the significance of regression equation is tested by F distribution, and the internal relationship between wide range machining error of topological modified gear and transmission error of gear system is clarified. The results show that, with the influence of wide-swath machining error, the dimensionless standard regression coefficients of ζ₁,ζ₂,ζ₃,ζ₄,ζ₅ and are 0.128, 0.452, 0.222, 1.146 and 0.784 respectively. Under the same amount, the concave tooth profile error has the most significant effect on the gear transmission error. The research results will provide a theoretical basis for the distribution of machining errors in gear topology modification and lay the foundation for obtaining high performance gears.

Key words: topology modification, wide-swath machining error, transmission error, dimensional normalization

CLC Number:

TH132

LIU Xinrong, WANG Huipeng, WANG Zhonghou, YANG Yongming. Influence of Wide-swath Machining Error on Transmission Error of Topological Modification Gear Transmission System[J]. Journal of Mechanical Engineering, 2023, 59(15): 131-141.

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