Study of the Transmission Characteristics of the Cycloid Gear Based on a Multi-Objective Optimization Modification

Due to the advantages of high transmission accuracy and high impact resistance, cycloid-pin gear drives are widely used in precision machinery. In the actual manufacturing and use process, a suitable clearance must be left between the cycloid gear and the pin teeth to meet the requirements of assemb...

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Main Authors: Xueping Song, Yang Chen, Jianming Yang
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Machines
Subjects:
Online Access:https://www.mdpi.com/2075-1702/11/8/775
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author Xueping Song
Yang Chen
Jianming Yang
author_facet Xueping Song
Yang Chen
Jianming Yang
author_sort Xueping Song
collection DOAJ
description Due to the advantages of high transmission accuracy and high impact resistance, cycloid-pin gear drives are widely used in precision machinery. In the actual manufacturing and use process, a suitable clearance must be left between the cycloid gear and the pin teeth to meet the requirements of assembly lubrication, so the cycloid gear needs to be modified. In order to improve the performance of the cycloid-pin gear drive, this paper proposes a multi-objective optimization modification method which takes into account the maximum transmission error of the cycloid drive on the basis of the compound modification. Firstly, a compound modification function is constructed based on the equations of the cycloid gear. Tooth contact analysis is carried out on the cycloid gear to obtain the equations for calculating the transmission error and return error of the cycloid pinion drive and to solve for the transmission error and return error of a single cycle with different modification coefficients. Then, a multi-objective optimization model is constructed, and the optimum coefficients are solved by genetic algorithm. By analyzing the forces on the cycloid gear under load, the range, the number and the contact force of meshing teeth are calculated for different modification methods. At the end, the cycloid gear is modeled and finite element analyzed after multi-objective optimization modification and compound modification according to the optimal modification coefficients. By finite element analysis, the correctness of the theoretical calculation of the contact force of the modified cycloid gear and the loading transmission error is solved. The contact forces and transmission error of the multi-objective optimization modification are less than the compound modification. The theoretical calculation and finite element analysis indicate that the cycloid profile with the multi-objective optimization modification is better than the profile with the compound modification.
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spelling doaj.art-2db7a7596c4a475aa73678208d1876be2023-11-19T01:56:27ZengMDPI AGMachines2075-17022023-07-0111877510.3390/machines11080775Study of the Transmission Characteristics of the Cycloid Gear Based on a Multi-Objective Optimization ModificationXueping Song0Yang Chen1Jianming Yang2School of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, ChinaSchool of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, ChinaSchool of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, ChinaDue to the advantages of high transmission accuracy and high impact resistance, cycloid-pin gear drives are widely used in precision machinery. In the actual manufacturing and use process, a suitable clearance must be left between the cycloid gear and the pin teeth to meet the requirements of assembly lubrication, so the cycloid gear needs to be modified. In order to improve the performance of the cycloid-pin gear drive, this paper proposes a multi-objective optimization modification method which takes into account the maximum transmission error of the cycloid drive on the basis of the compound modification. Firstly, a compound modification function is constructed based on the equations of the cycloid gear. Tooth contact analysis is carried out on the cycloid gear to obtain the equations for calculating the transmission error and return error of the cycloid pinion drive and to solve for the transmission error and return error of a single cycle with different modification coefficients. Then, a multi-objective optimization model is constructed, and the optimum coefficients are solved by genetic algorithm. By analyzing the forces on the cycloid gear under load, the range, the number and the contact force of meshing teeth are calculated for different modification methods. At the end, the cycloid gear is modeled and finite element analyzed after multi-objective optimization modification and compound modification according to the optimal modification coefficients. By finite element analysis, the correctness of the theoretical calculation of the contact force of the modified cycloid gear and the loading transmission error is solved. The contact forces and transmission error of the multi-objective optimization modification are less than the compound modification. The theoretical calculation and finite element analysis indicate that the cycloid profile with the multi-objective optimization modification is better than the profile with the compound modification.https://www.mdpi.com/2075-1702/11/8/775cycloid drivetooth profile modificationmulti-objective optimizationtransmission error
spellingShingle Xueping Song
Yang Chen
Jianming Yang
Study of the Transmission Characteristics of the Cycloid Gear Based on a Multi-Objective Optimization Modification
Machines
cycloid drive
tooth profile modification
multi-objective optimization
transmission error
title Study of the Transmission Characteristics of the Cycloid Gear Based on a Multi-Objective Optimization Modification
title_full Study of the Transmission Characteristics of the Cycloid Gear Based on a Multi-Objective Optimization Modification
title_fullStr Study of the Transmission Characteristics of the Cycloid Gear Based on a Multi-Objective Optimization Modification
title_full_unstemmed Study of the Transmission Characteristics of the Cycloid Gear Based on a Multi-Objective Optimization Modification
title_short Study of the Transmission Characteristics of the Cycloid Gear Based on a Multi-Objective Optimization Modification
title_sort study of the transmission characteristics of the cycloid gear based on a multi objective optimization modification
topic cycloid drive
tooth profile modification
multi-objective optimization
transmission error
url https://www.mdpi.com/2075-1702/11/8/775
work_keys_str_mv AT xuepingsong studyofthetransmissioncharacteristicsofthecycloidgearbasedonamultiobjectiveoptimizationmodification
AT yangchen studyofthetransmissioncharacteristicsofthecycloidgearbasedonamultiobjectiveoptimizationmodification
AT jianmingyang studyofthetransmissioncharacteristicsofthecycloidgearbasedonamultiobjectiveoptimizationmodification