鏈條鏈輪之設計與分析研究

The Design and Analysis of Chains and Sprocrets

林明德(Ming-De Lin)

指導教授 ： 謝秋帆

國立虎尾科技大學/工程學院/機械與電腦輔助工程系碩士班/碩士(2013年)

https://doi.org/10.6827/NFU.2013.00065

摘要

本文主要針對自行車傳動系統之後飛輪做設計並且呈現完整的傳動系統與提出新型雙鏈條式機構之設計，透過SolidWorks把零件繪製出來並且組合，接著用SolidWorks外掛軟體對此機構進行動態模擬及結構分析，把以上動態模擬及結構分析的結果匯出做成圖表來探討，從文中可得知，在飛輪的設計方面，是以結構內部逆轉為較佳組合，因與作用施力同方向，沒有來自內部的一個阻抗力故該組飛輪強度較高；給予傳動系統不同速度、飛輪大小來做比較，進行動態模擬後，發現速度較高其運動曲線是相對於低速平穩許多，利用鏈條傳遞的力量在高速的情況會漸趨穩定，對鏈條本身來說鏈板與鏈結之間留有餘隙，主要是讓鏈條在移鏈式變速能夠利用這餘隙做上下鏈，但此模式會對鏈條的應力造成額外的負擔；本文最後提出改良傳統移鏈式變速，針對傳統式的缺點進行改良，輔以理論突顯改良後的新式變速機構是有其發展之可能性。

關鍵字

鏈條 ； 動態模擬 ； 結構分析 ； 雙鏈條機構

並列摘要

This paper mainly after bike flywheel drive to do the design and presents the complete drive system with new double-chain-type mechanism proposed in the design, the parts drawn through SolidWorks and combinations, then use SolidWorks plug-in software for dynamic simulation of this mechanism and structural analysis, the above dynamic simulation and structural analysis of the results made export charts to explore, from the text can be learned in the flywheel design, based on the internal structure reversed to better combination, as with the role of force in the same direction, did not come from inside resistance force of a flywheel of the group and therefore higher strength; give different transmission speed, the flywheel size for comparison, dynamic simulation, we found that the higher the speed of its movement relative to the low-speed smooth curves are many, the use of chain transfer of power in the high-speed the situation will be stabilized, the chain link itself between the plate and the chain stay with clearance, mainly to allow the chain to take advantage of this shift chain clearance speed up and down chain, but this mode will cause the chain of stress additional burden; paper concludes with improvement of traditional gear shift chain, the shortcomings of the traditional style make improvements, combined with the new theory highlights the improved transmission mechanism is the possibility of its development.

並列關鍵字

sprocret ； dynamic simulation ； structural analysis ； double sprocret mechanism

參考文獻

[4] 邱顯俊、蔡翼鴻，2007，“新型自行車鏈條運動分析研究”，國立中興大學機械工程學系

[2] 宋震國、蔡承甫，1994，“自行車後變速系統鏈條上鏈之數學模式與齒形設計”，國立清華大學動力機械學系

[5] 黃金沺、陳佶男，2007“齒形自行車鏈條之設計”，國立成功大學機械工程學系碩博士班

[6] 邱顯俊、陳瑩珊，2009，“自行車球銷鏈條模擬分析研究”，國立中興大學機械工程學系

[7] T.Y. Lin, C.H. Tseng，1998-1999，“Optimum design for artiRcial neural networks: an example in a bicycle derailleur system” Department of Mechanical Engineering，National Chiao Tung University，Hsinchu 30050，Taiwan，