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研究生:唐修晨
研究生(外文):Hsiu-Chen Tang
論文名稱:自行車前內變速器之研究與開發
論文名稱(外文):Research and development of the front gear hub for bicycle
指導教授:謝龍昌謝龍昌引用關係
學位類別:碩士
校院名稱:國立虎尾科技大學
系所名稱:機械與機電工程研究所
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2009
畢業學年度:97
語文別:中文
論文頁數:132
中文關鍵詞:前內變速器運動設計相對功理論行星齒輪系輪系方程式
外文關鍵詞:front gear hubkinematic designlatent power theoremplanetary gear traintrain value equation.
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自行車的前內變速器機構之設計是否良好,影響了自行車的性能、舒適性以及安全性。目前自行車的前內變速器機構均採用齒輪箱式、行星齒輪式變速機構。齒輪箱式前內變速器機構常用在下坡車或越野自行車上,故設計之產品較為笨重;行星齒輪式前內變速機構則用在一般登山車、城市通勤車、折疊式自行車等,具有體積小、重量輕、構造簡單等優勢,符合近年來國內外發展的運動休閒風氣,使得前內變速器成為車廠研發之重點。

本研究之目的在於有系統的探討自行車前內變速器、變速控制機構之設計,在不改變車架五通軸的條件下,利用行星齒輪系進行包括整個機構創新設計、運動設計、齒型設計,以及雛形機工程設計。首先針對國內外之內變速器專利產品以及文獻進行分析,並歸納前內變速器之基本特性訂定相關設計需求。依據此設計需求對五、六桿行星齒輪機構之各個案例進行構造合成,最後從五、六桿行星齒輪機構之案例中,各挑選出構造簡單並符合設計需求之行星齒輪機構進行雛型機工程設計。
The characteristics of front gear hubs are the important factors to influence the property, comfortable and safe of bicycle. Until now, the front gear hubs are the gear boxes and the planetary gear mechanism. The gear box of front gear hub has the disadvantage of heavy weight, it’s only used on downhill bike or cross-country bike. The planetary gear train has the advantage of compact size, the light weight, and simple structure, it is used in the mountain bike, the city bike, the foldaway bike. And, the planetary gear train of front gear hub for bicycle will become more and more popular.

In this paper, we propose a design methodology for the invention of front gear hub and the design of control device for bicycle. According to the design methodology without changing the design of bottom-bracket (五通) of frame, the invention design, kinematic design, gear tooth profile design,, and prototype manufacture of front gear hubs are finished by using the planetary gear trains.First, analyze the patents and literatures of the gear hubs and conclude the design requirement and constraints of front gear hubs. Based on the design requirement, the five bar and six bar planetary gear trains are synthesized. Then, according to the kinematic and strength requirements of front gear hubs, the tooth profile and tooth numbers of planetary gear trains are synthesized. Finally, the engineering drawing of front gear hubs with planetary gear trains are manufacture to verify the design theorem.
中文摘要 ………………………………………………………… i
英文摘要 ………………………………………………………… ii
誌謝 …………………………………………………………. iii
目錄 ………………………………………………………… iv
表目錄 ………………………………………………………… vii
圖目錄 ………………………………………………………… viii
符號說明 ………………………………………………………… xi
第一章 前言…………………………………………………… 1
1.1 文獻回顧……………………………………………… 2
1.1.1 自行車內變速器專利回顧…………………………… 2
1.1.2 自行車內變速器文獻回顧…………………………… 5
1.2 研究動機及目的……………………………………… 6
1.3 論文架構……………………………………………… 8
第二章 專利分析與文獻回顧………………………………… 9
2.1 自行車內變速器專利分析…………………………… 9
2.1.1 自行車後內變速器…………………………………… 9
2.1.2 自行車前內變速器…………………………………… 25
2.1.2A 齒輪箱式前內變速器專利…………………………… 25
2.1.2B 行星齒輪式前內變速器專利………………………… 30
2.2 文獻回顧……………………………………………… 44
2.3 內變速器變速機構種類……………………………… 45
第三章 現有前內變速機構分析……………………………… 50
3.1 自行車前內變速器架構……………………………… 50
3.2 行星齒輪機構之類型………………………………… 51
3.3 輪系方程式…………………………………………… 52
3.4 相對功理論…………………………………………… 54
3.5 單輪系迴路…………………………………………… 55
3.6 前內變速器商品構造分析…………………………… 58
3.6.1 Schlumpf二速前內變速器…………………………… 58
3.6.2 SRAM Hammerschmidt二速前內變速器……………… 61
3.7 行星齒輪系前內變速器機構設計條件……………… 63
第四章 前內變速器運動設計………………………………… 66
4.1 行星齒輪系構想設計………………………………… 66
4.1.1 五桿兩自由度行星齒輪機構………………………… 66
4.1.2 六桿兩自由度行星齒輪機構………………………… 68
4.2 內變速器創新設計…………………………………… 69
4.2.1 二速前內變速器創新設計…………………………… 70
4.2.2 三速前內變速器創新設計…………………………… 72
4.3 運動設計與效率分析………………………………… 74
4.3.1 二速前內變速器分析………………………………… 74
4.3.2 三速前內變速器分析………………………………… 80
4.4 小結…………………………………………………… 89
第五章 雛型機工程設計……………………………………… 91
5.1 行星齒輪系前內變速器設計需求與限制…………… 91
5.2 二速前內變速器設計實……………………………… 92
5.3 三速前內變速器設計實例…………………………… 98
5.3.1 棘爪控制式…………………………………………… 100
5.3.2 旋轉平移式…………………………………………… 104
5.4 小結…………………………………………………… 107
第六章 結論與建議…………………………………………… 108
參考文獻 ………………………………………………………… 110
附錄一 ………………………………………………………… 115
附錄二 ………………………………………………………… 118
完整英文
大綱 ………………………………………………………… 129
簡歷 ………………………………………………………… 132
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