設計工学・システム部門講演会講演論文集
Online ISSN : 2424-3078
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普及型 3D プリンタの造形による樹脂製パラドックスプラネタリギヤの動力伝達効率向上に関する基礎的研究
*杉山 拓克BESUCHET Nicolas上杉 繁
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会議録・要旨集 フリー

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Recently, a 3D printing has been widespread in many kinds of fields and used as online services. Most 3D printed objects can be used for prototypes and a little research studies into 3D printing designs for technological functions. This research focuses on the technological functions of 3D printed objects, such as the power transmission. Paradox planetary gears which can be easily 3D printed and expected to utilize for variable machines is employed. The advantage of this gear reducer is that even the small size of gear still has the high reduction ratio. Meanwhile, the power transmission efficiency of a reducer with this gear is low. The four approaches, designing of a gear shape, changing teeth height of a gear, using a carrier which restricts the planetary gear and surface treatments of gear teeth with grinding stones and acetone, are applied to improve the efficiency. The two experiments, one is testing surface smoothness and the other is testing the power transmission efficiency, are conducted to explore how those elements effect on the surface smoothness and the efficiency. The former test results demonstrates that both surface treatments of gear teeth improve the shape of gear and the max convex height in the teeth surface. The specific gear shape with acetone treatment increases the efficiency in the low torque and a carrier raises the maximum efficiency are found out from the later test results. By the efficiency in the low torque, the efficiency of paradox planetary gear is increased maximum 7[%].

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