Proposal of strain wave gear actuated by magnetic force
Proposal of strain wave gear actuated by magnetic force
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DOI：
10.3233/jae-220213
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发表时间：
2022-12
影响因子：
0.6
通讯作者：
F. Kitayama;R. Kondo;Riku Endo
中科院分区：
文献类型：
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作者：
F. Kitayama;R. Kondo;Riku Endo
带有执行器的下肢外骨骼可以帮助残疾人行走。然而，外骨骼的重量大于矫形器、步行架等传统医疗器械的重量。在这项研究中，我们提出了一种用于轻型外骨骼的新型应变波齿轮，它比传统的商用应变波齿轮轻 50%。该齿轮使用磁铁和磁轭，而不是机械元件。薄壁弹性圆柱体在齿轮内的磁力作用下发生变形，通过齿啮合传递扭矩。使用灵活的多体动力学分析和磁力数据库，计算出最大扭矩为 10.5 Nm。结果是高效地开发了轻型机器。
Lower limb exoskeletons with actuators aids disabled individuals in walking. However, the exoskeleton weight is greater than that of conventional medical devices such as orthoses and walking frames. In this study, we propose a novel strain wave gear for light exoskeletons, which is 50% lighter than conventional commercial strain wave gears. This gear uses magnets and yokes, rather than mechanical elements. The thin-walled elastic cylinder is deformed by the magnetic force in the gear, and the torque is transmitted by tooth engagements. The maximum torque was calculated to be 10.5 Nm using flexible multibody dynamics analyses with a magnetic force database. The outcome was efficient in development of lightweight machines.