| Summary: | 碩士 === 國立成功大學 === 機械工程學系碩博士班 === 94 === Toroidal drives are one type of planetary gear trains. Compared with other ordinary gear mechanisms, they have a number of advantages, such as higher horsepower-to-weight ratio, coaxial configuration, higher speed ratio, lower noise, and higher input speed, etc. The main purpose of this study is to investigate their geometric characteristics, thus their surface design, curvature analysis, and the avoidance of the undercutting and interference are studied.
Models for the surface design and curvature analysis are developed based on conjugate surface theory. Consequently, they are applied to evolve the models for the determination of the ranges of design variables for avoiding undercutting and avoiding rib-surface-interfering. Examples are included to verify the correctness of the models developed and to demonstrate the characteristics of the drives. For the drives, it is found that rib-surface-interfering occurs before undercutting happens.
The feasibility of the model to determine the ranges of design variables for avoiding rib-surface-interfering is verified. It is believed that the results are valuable in both of the academic field and industrial applications.
|
|---|
