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Influence of cycloid pinwheel reducer structure parameters on transmission performance and optimized design with considering friction loss
Cycloid pinwheel reducers are widely applied in the joint parts for industrial robots with their characteristics of the compacted structure, long service life, and strong bearing capacity. However, it may operate with various friction losses in application, which lead to the decreasing of transmission efficiency. In this study, the transmission efficiency for the CT-CHR type cycloid pinwheel reducer considering friction loss is modeled with multi-tooth contact analysis. The friction losses comprised of gear meshing, pin dowel output, bearing rotation, sealing element and lubrication were generalized investigated, the influence of reducer structure parameters on factors of efficiency and maximum meshing force were systematically analyzed and discussed. The multi-objective optimization based on genetic algorithm was performed on cycloidal reducer mechanism with selecting the transmission efficiency, maximum meshing force, total volume as objectives, and structure parameters as design variables with corresponding constraints. The solid models for cycloid pinwheel reducer before and after optimization were established and compared, and the finite element simulation analysis for contact stress was carried out for verifying the correctness and feasible of theoretical optimization model. The results illustrate that the overall performance for cycloid pinwheel reducer can be effectively improved by optimized design. This study can provide the novel design ideas for the designers to optimize the mechanical components in field of industrial engineering, which has the certain academic value for the guideline and reference of optimization design.
Influence of cycloid pinwheel reducer structure parameters on transmission performance and optimized design with considering friction loss
Cycloid pinwheel reducers are widely applied in the joint parts for industrial robots with their characteristics of the compacted structure, long service life, and strong bearing capacity. However, it may operate with various friction losses in application, which lead to the decreasing of transmission efficiency. In this study, the transmission efficiency for the CT-CHR type cycloid pinwheel reducer considering friction loss is modeled with multi-tooth contact analysis. The friction losses comprised of gear meshing, pin dowel output, bearing rotation, sealing element and lubrication were generalized investigated, the influence of reducer structure parameters on factors of efficiency and maximum meshing force were systematically analyzed and discussed. The multi-objective optimization based on genetic algorithm was performed on cycloidal reducer mechanism with selecting the transmission efficiency, maximum meshing force, total volume as objectives, and structure parameters as design variables with corresponding constraints. The solid models for cycloid pinwheel reducer before and after optimization were established and compared, and the finite element simulation analysis for contact stress was carried out for verifying the correctness and feasible of theoretical optimization model. The results illustrate that the overall performance for cycloid pinwheel reducer can be effectively improved by optimized design. This study can provide the novel design ideas for the designers to optimize the mechanical components in field of industrial engineering, which has the certain academic value for the guideline and reference of optimization design.
Influence of cycloid pinwheel reducer structure parameters on transmission performance and optimized design with considering friction loss
Optim Eng
Gao, Song (author) / Zhang, Yueming (author) / Li, Tianyu (author) / Ding, Xiaoguang (author) / Ji, Shuting (author) / Cao, Zhihang (author)
Optimization and Engineering ; 26 ; 507-541
2025-03-01
35 pages
Article (Journal)
Electronic Resource
English
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