Analysis of the influence of flexible and lubrication characteristics of main bearings on transmission error of RV reducers
ObjectiveThe RV reducer is extensively utilized in the joints of industrial robots due to its advantages such as the high reduction ratio, the low transmission error, and the compact structure. However, the main bearing, being a thin-walled bearing, is prone to significant deformation of the ring du...
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| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2025-01-01
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| Series: | Jixie chuandong |
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| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.01.004 |
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| author | ZHI Qiangong NIU Linkai XIONG Xiaoyan YI Xianghong YAN Shuai |
| author_facet | ZHI Qiangong NIU Linkai XIONG Xiaoyan YI Xianghong YAN Shuai |
| author_sort | ZHI Qiangong |
| collection | DOAJ |
| description | ObjectiveThe RV reducer is extensively utilized in the joints of industrial robots due to its advantages such as the high reduction ratio, the low transmission error, and the compact structure. However, the main bearing, being a thin-walled bearing, is prone to significant deformation of the ring during the operation. The transmission error induced by the deformation of the flexible support cannot be neglected. Consequently, it is imperative to investigate the impact of the flexibility and lubrication characteristics of the main bearing on the transmission error of the reducer.MethodsTaking angular contact ball bearings as the research object, the parametric three-dimensional models of main bearings and reducers were established, and the multibody dynamic model of the rigid-flex coupling of main bearings, the elastic lubrication model of main bearings considering the flexible deformation of rings and the dynamic model of RV reducers were constructed. On the basis of studying the dynamic response of key parts of the reducer and the contact characteristics of the main bearing, the influence of the flexible characteristics of the main bearing on the transmission error of the RV reducer was further explored.ResultsThe results show that the transmission error range is -25.2″ to 21.6″ when the flexible characteristics of the main bearing are not considered, and the transmission error range increases to -43.2″ to 45″ after considering the flexible characteristics of the main bearing. With the increasing deformation of the ring, the transmission error of the reducer continues to increase; with the continuous increase of oil film thickness, the transmission error of the reducer first decreases and increases; with the continuous increase of oil film pressure, the transmission error of the reducer is also decreasing first and increases; the influence of the flexible characteristics of the main bearing on the transmission error of the reducer cannot be ignored, and it is of great significance to appropriately improve the supporting stiffness of the main bearing to reduce the transmission error of the RV reducer. The proposed method has certain reference significance for the precision design of RV reducers and main bearings. |
| format | Article |
| id | doaj-art-869de24cbb5740c6aee4e5b9a47e4157 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-869de24cbb5740c6aee4e5b9a47e41572025-01-25T19:01:06ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392025-01-0149283681410839Analysis of the influence of flexible and lubrication characteristics of main bearings on transmission error of RV reducersZHI QiangongNIU LinkaiXIONG XiaoyanYI XianghongYAN ShuaiObjectiveThe RV reducer is extensively utilized in the joints of industrial robots due to its advantages such as the high reduction ratio, the low transmission error, and the compact structure. However, the main bearing, being a thin-walled bearing, is prone to significant deformation of the ring during the operation. The transmission error induced by the deformation of the flexible support cannot be neglected. Consequently, it is imperative to investigate the impact of the flexibility and lubrication characteristics of the main bearing on the transmission error of the reducer.MethodsTaking angular contact ball bearings as the research object, the parametric three-dimensional models of main bearings and reducers were established, and the multibody dynamic model of the rigid-flex coupling of main bearings, the elastic lubrication model of main bearings considering the flexible deformation of rings and the dynamic model of RV reducers were constructed. On the basis of studying the dynamic response of key parts of the reducer and the contact characteristics of the main bearing, the influence of the flexible characteristics of the main bearing on the transmission error of the RV reducer was further explored.ResultsThe results show that the transmission error range is -25.2″ to 21.6″ when the flexible characteristics of the main bearing are not considered, and the transmission error range increases to -43.2″ to 45″ after considering the flexible characteristics of the main bearing. With the increasing deformation of the ring, the transmission error of the reducer continues to increase; with the continuous increase of oil film thickness, the transmission error of the reducer first decreases and increases; with the continuous increase of oil film pressure, the transmission error of the reducer is also decreasing first and increases; the influence of the flexible characteristics of the main bearing on the transmission error of the reducer cannot be ignored, and it is of great significance to appropriately improve the supporting stiffness of the main bearing to reduce the transmission error of the RV reducer. The proposed method has certain reference significance for the precision design of RV reducers and main bearings.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.01.004RV reducerThin-walled bearingFlexible characteristicsTransmission error |
| spellingShingle | ZHI Qiangong NIU Linkai XIONG Xiaoyan YI Xianghong YAN Shuai Analysis of the influence of flexible and lubrication characteristics of main bearings on transmission error of RV reducers Jixie chuandong RV reducer Thin-walled bearing Flexible characteristics Transmission error |
| title | Analysis of the influence of flexible and lubrication characteristics of main bearings on transmission error of RV reducers |
| title_full | Analysis of the influence of flexible and lubrication characteristics of main bearings on transmission error of RV reducers |
| title_fullStr | Analysis of the influence of flexible and lubrication characteristics of main bearings on transmission error of RV reducers |
| title_full_unstemmed | Analysis of the influence of flexible and lubrication characteristics of main bearings on transmission error of RV reducers |
| title_short | Analysis of the influence of flexible and lubrication characteristics of main bearings on transmission error of RV reducers |
| title_sort | analysis of the influence of flexible and lubrication characteristics of main bearings on transmission error of rv reducers |
| topic | RV reducer Thin-walled bearing Flexible characteristics Transmission error |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.01.004 |
| work_keys_str_mv | AT zhiqiangong analysisoftheinfluenceofflexibleandlubricationcharacteristicsofmainbearingsontransmissionerrorofrvreducers AT niulinkai analysisoftheinfluenceofflexibleandlubricationcharacteristicsofmainbearingsontransmissionerrorofrvreducers AT xiongxiaoyan analysisoftheinfluenceofflexibleandlubricationcharacteristicsofmainbearingsontransmissionerrorofrvreducers AT yixianghong analysisoftheinfluenceofflexibleandlubricationcharacteristicsofmainbearingsontransmissionerrorofrvreducers AT yanshuai analysisoftheinfluenceofflexibleandlubricationcharacteristicsofmainbearingsontransmissionerrorofrvreducers |