| 摘要 |
An eccentric gearbox with selectable large speed ratio, in this gearbox many eccentric gear ( 8, 12, 16 ) pairs are assembled in parallel, and are connected to a common input shaft ( 1 ) and a common output shaft ( 2 ). In every gear pair ( 8, 12, 16 ), one gear keeps its orientation fixed with respect to a fixed part called as fixed gear ( 8, 12, 16 ) and another gear that rotates about its own axis is called as moving gear ( 7, 11, 15 ). Difference in number of teeth on the two gears of a gear pair is kept to one tooth or more. Through proper selection of a particular gear pair any speed ratio can be selected. In this way, it is possible to make a compact gearbox, with multiple large speed ratios. Such a gear box can be used in automobiles, robot manipulators, earth moving equipments, space applications, toys, hand held tools and many other applications.
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