著者

城越 教夫 日高 照晃

出版者

一般社団法人 日本機械学会

雑誌

日本機械学会論文集 C編 (ISSN:03875024)

巻号頁・発行日

vol.64, no.624, pp.3120-3127, 1998-08-25 (Released:2008-02-26)

参考文献数

5

被引用文献数

1 1

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It is necessary to reduce gearing backlashes and bearing clearances at planet gears for the sake of minimizing the backlash of the planetary gear system for factory automation uses. However, the reducing backlash would further cause improper load distribution to each planet gear, and it would usually not be easy to keep smooth rotation of planetary gear system. To solve this problem this study experimentally investigated the influence of eccentricity of planet gears and the assembling condition on the load distribution of planet gears and the transmission error. It has revealed that there is each appropriate method to obtain better load distribution or smaller transmission error, respectively.

著者

城越 教夫 日高 照晃 賀勢 晋司

出版者

一般社団法人 日本機械学会

雑誌

日本機械学会論文集 C編 (ISSN:03875024)

巻号頁・発行日

vol.66, no.646, pp.1952-1958, 2000-06-25 (Released:2008-02-26)

参考文献数

5

被引用文献数

7 7

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Reductions of meshing and bearing clearances are requisite in design and production of small backlash planetary gears. In this case, however, there is a risk of losing proper load distribution to each planet gears, which has risk of occurrence of non-working flank load. The state of non-working flank load increases unnecessarily working flank load and gives some undesirable influences on reliability of planetary gears. To solve this problem, this paper aims to analyze quantitatively about relations between the load distribution and position deviations of planet gears. These deviations are considered to be most influential to the problem in reality. About one type of the device with 4 planet gears, 20 kinds of combination pattern of the position deviations are selected out, and the influences of backlash, reduction ratio and gear module to the above relations are clarified. Consequently, allowable position deviations to avoid the state of non-working flank load are found out for various conditions and useful materials for design are obtained.

著者

日高 照晃 石田 武 張 佑林 専徳 博文 笹原 政勝 谷岡 良弘

出版者

山口大学工学部

雑誌

山口大学工学部研究報告 (ISSN:03727661)

巻号頁・発行日

vol.39, no.1, pp.p93-100, 1988-10

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A strain wave gearing (commonly known as harmonic drive gearing) has been widely used as the reduction gear drive in industrial robots. Assembling an industrial robot system with an input motor, a strain wave gearing and an output arm, the amplitude of vibration in the robot system had been measured previously. Translating the robot system into an equivalent vibration model, the vibration occurred in the robot system was analyzed theoretically to compare the theoretical value with the experimental one and to determine the cause of the vibration with following result : The amplitude of the vibration occurred in the robot system was influenced by the variation of the spring stiffness and by the composite error in meshing, due to the machining and assembly errors of elements.