Thursday, July 29, 2010

Non-circular gears and planetary gears


Non-circular gear can be considered as a transmogrification of circular gear, because its pitch circle has been shifted from circular to non-circular. The outstanding characteristic of non-circular gear transmission mechanism in dynamics is that it could achieve the non-linear relationship between driving mechanism and follower mechanism, as a result, it can substitute for the usual transmission between cam and link mechanism, which has the following advantages:
    1.Stabler,sturdier and firmer than link mechanism;
    2.Stabler than cam mechanism;
    3.Easier and more facile to realize shift transmission than others mechanism.
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