Wear and Sensitivity Analysis of Transmission Interface of Cylindrical Gear with Variable Hyperbolic Circular-arc-tooth-trace

doi:10.3901/JME.2024.05.081

Abstract

Abstract: In order to reveal the wear characteristics of the Cylindrical Gear with Variable Hyperbolic Circular-arc-tooth-trace, a VH-CATT gear transmission interface wear model was established by combining Archard’s wear theory with the elliptic equivalent contact model coexisting with the main plane. The normal load and contact pressure of the gear surface were obtained by finite element method. The correctness of the model was verified by numerical calculation, and the wear law of the tooth surface of VH-CATT gear transmission under quasi-static condition was investigated. The results show that the wear depth of VH-CATT gears presents a semi-elliptic distribution along the tooth line, with the maximum wear depth near the root and the minimum wear depth near the pitch circle. The influence of increasing meshing frequency on the wear depth of the gear surface gradually becomes gentle. Sensitivity analysis of design parameters shows that increasing transmission ratio, modulus, tooth line radius and pressure angle can effectively reduce gear surface wear. This research can provide a theoretical basis for improving the accuracy, efficiency and reduce wear and life-span of VH-CATT gear.

Key words: cylindrical gear with variable hyperbolic circular-arc-tooth-trace, transmission interface, archard wear theory, gear surface wear, sensitivity analysis

CLC Number:

TH114

WEI Yongqiao, ZHANG Jin, WANG Shaojiang, QI Xiaohu, GUO Rui, YANG Haijiang. Wear and Sensitivity Analysis of Transmission Interface of Cylindrical Gear with Variable Hyperbolic Circular-arc-tooth-trace[J]. Journal of Mechanical Engineering, 2024, 60(5): 81-94.

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