20-04-2012, 12:23 PM
i am amit patel, student of final year mechanical engineering. i have a project on epycyclic gear train. i want complete information about gear train project.
my e-mail id = amit8689[at]gmail.com
20-04-2012, 12:23 PM
i am amit patel, student of final year mechanical engineering. i have a project on epycyclic gear train. i want complete information about gear train project. my e-mail id = amit8689[at]gmail.com
05-09-2012, 09:50 AM
Gear train
gear train.pdf (Size: 445.85 KB / Downloads: 46) A gear train is formed by mounting gears on a frame so that the teeth of the gears engage. Gear teeth are designed to ensure the pitch circles of engaging gears roll on each other without slipping, this provides a smooth transmission of rotation from one gear to the next.[1] The transmission of rotation between contacting toothed wheels can be traced back to the Antikythera mechanism of Greece and the South Pointing Chariot of China. Illustrations by the renaissance scientist Georgius Agricola show gear trains with cylindrical teeth. The implementation of the involute tooth yielded a standard gear design that provides a constant speed ratio. Some important features of gears and gear trains are: • The ratio of the pitch circles of mating gears defines the speed ratio and the mechanical advantage of the gear set. • A planetary gear train provides high gear reduction in a compact package. • It is possible to design gear teeth for gears that are non-circular, yet still transmit torque smoothly. • The speed ratios of chain and belt drives are computed in the same way as gear ratios. See bicycle gearing. Mechanical advantage Gear teeth are designed so that the number of teeth on a gear is proportional to the radius of its pitch circle, and so that the pitch circles of meshing gears roll on each other without slipping. The speed ratio for a pair of meshing gears can be computed from ratio of the radii of the pitch circles and the ratio of the number of teeth on each gear. |
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