Study on transmission error and torsional stiffness of RV reducer under wear

In order to discuss the influence of wear dynamic evolution on the degradation of core transmission performance, transmission error and meshing torsional stiffness of RV reducer, taking BX-40E reducer as the research object, based on Langkali-Nikraves contact force model and Archard wear theory, the...

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Bibliographic Details
Published in:Journal of mechanical science and technology 2022, 36(8), , pp.4067-4081
Main Authors: Zhang, Ronghua, Zhou, Jianxing, Wei, Zheng
Format: Article
Language:English
Subjects:
Contact force
Control
Cycloids
Dynamic models
Dynamical Systems
Engineering
Equivalence
Error analysis
Error correction
Evolution
Industrial and Production Engineering
Life extension
Mechanical Engineering
Meshing
Original Article
Stiffness
Subsystems
Teeth
Transmission error
Vibration
Wear
기계공학
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Summary:In order to discuss the influence of wear dynamic evolution on the degradation of core transmission performance, transmission error and meshing torsional stiffness of RV reducer, taking BX-40E reducer as the research object, based on Langkali-Nikraves contact force model and Archard wear theory, the wear coefficients with different position conditions were obtained through equivalent wear experiments. The RV transmission dynamic model considering wear, meshing stiffness, meshing force, meshing tooth pairs and transmission error linkage was established by using centralized parameter method and dynamic subsystem method. Compared with the traditional tooth profile wear simulation, which distribution and size of the wear depth curves were more and more different with wear dynamic evolution, theoretically concluded that the dynamic update of wear coefficient is necessary and correct for the accurate simulation of tooth surface wear. The transmission error shows a “double hump” distribution mapped to the wear depth of the tooth profile, and deteriorates with the wear accumulation. The equivalent torsional stiffness of cycloid pin teeth decreases piecewise approximately linearly due to wear. In the previous stage, the reduction rate is small because the tooth detachment first occurs at the tooth top and root, and the single tooth torsional stiffness near the tooth top and root is smaller. The research results provide a new idea and theoretical basis for improving the transmission accuracy, stability holding ability, wear reduction and life extension of RV reducer.
ISSN:1738-494X
1976-3824
DOI:10.1007/s12206-022-0727-0