一種具圓柱運動之行星輪系的概念設計

本文提出一種具有圓柱運動行為之空間複式行星齒輪系的概念設計，其目的在應用於需要作圓柱曲線之工作場合，例如：紡織機械的繞線機，需要產生不同形狀的紗線捲以配合不同需要的場合；又如棉花糖成型機，需要產生不同形狀的棉花糖以吸引孩童。觀察這些裝置的機構，其輸出端皆需要具有公轉、自轉和往復移動等運動輸出。因此，本文提出一種利用空間複式行星齒輪系，構成具有三個自由度之機構的概念設計，此一機構的特點，在於輸出端可同時控制公轉、自轉和上下往復之運動，來達到圓柱運動之工作空間。由於其具三個自由度，因此配合適當的不同輸入，可以捲繞成型出不同形狀之軸對稱物體。本文亦推導出此行星齒輪系的運動分析方程式，並進行動態模擬，證明其符合設計之要求。

關鍵字

行星齒輪系；圓柱運動；公轉；自轉；往復移動

並列摘要

This dissertation presents a conceptual design of planetary gear trains with cylindrical motion. The purpose of this novel design is to apply in the occasion of requiring cylindrical output motion. For example, the winding machine of textile machinery needs to produce spool of yarns with different shapes. Another example, the cotton-candy machine needs to wind up different shapes of cotton candy to attract children. Through the observation of these above-mentioned devices, their outputs all require motions of revolution, rotation about its own axis and reciprocating motion. Therefore, this dissertation presents a conceptual design of applying spatial compound planetary gear train in design a 3-DOF mechanism. The characteristics of this 3-DOF mechanism is that it’s output motion of revolution, rotation about its own axis and up-down reciprocating motion can be controlled simultaneously, so the output motion can be constrained in a cylindrical working space. With three degree-of-freedom, this design can yield different axis-symmetric shapes of output motion by coordinating those three different input motions. The kinematic equations of the novel planetary gear trains are also derived, and its dynamic simulation has been performed to prove their compliance with the requirements of the design.

並列關鍵字

Planetary Gear Trains ； Cylindrical Motion ； Revolution ； Rotation ； Reciprocating Motion

參考文獻

[7] F. Buchsbaum and F. Freudenstein, "Synthesis of Kinematic Structure of Geared Kinematic Chains and other Mechanisms," Journal of Mechanisms and Machine Theory, vol. 5, 1970, pp. 357-392.

[8] L. W. Tsai, Mechanism Design: Enumeration of Kinematic Structure According to Function, CPC Press, New York, 2000.

[9] G. Chatterjee and L. W. Tasi, "Enumeration of Epicyclic-Type Automatic Transmission Gear Trains," Journal of Passenger Cars, Sec. 6, 103, 1994, pp. 1415-1426.

[11] F. Freudenstein and E. R. Make, "Creation of Mechanisms According to Kinematic Structure and Function," Journal of Environmental and Planning B, 6, 1979, pp. 375-391.

[13] H. S. Yan and J. J. Chen, "Creative Design of a Wheel Damping Mechanism," Mechanism and Machine Theory, 20, 6, 1985, pp. 597-600.

國際替代計量

一種具圓柱運動之行星輪系的概念設計

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