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Load equalizing mechanism for bicycle planetary gear system

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 41 Issue 2 Page 225-230
published_at 1991-03
KJ00000156837.pdf
[fulltext] 484 KB
Title
自転車用遊星歯車変速機における各種荷重等配機構の性能
Load equalizing mechanism for bicycle planetary gear system
Creators Hidaka Teruaki
Creators Ishida Takeshi
Creators Wang Hongyou
Source Identifiers
Planetary gear systems are very compact and efficiently transmit large amount of power. Their advantages have resulted in the recent use of such systems on bicycles. When using a planetary gear system it is important to install a good load equalizing mechanism in order to produce a comfortable level of effort for a rider. Static forces acting on elements of a planetary gear system are calculated using a two dimensional model and the effects of load equalizing mechanisms, run-out and assembly errors of elements on planet gear load distribution rates are evaluated. The results show that in the case of three planet gears at least one element from among the sun gear, an internal gear and planet carrier should be movable in order to improve load distribution. The direction for run-out errors of the planet gears at their initial state should be in a radial direction to the center of the planet carrier. The circumferential position of the planet gear shaft should be composed with special attention.
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1991-03
File Version Version of Record
Access Rights open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools 工学部