Studies on the Noncircular Planetary Gear Mechanisms with Nonuniform Motion

The noncircular gears have been used in the flowmeters, pumps, etc., but they were used, for the mechanisms with nonuniform motion, to make use of the monotonous angular relations between the input and output axles by fitting them to the ordinary gear trains.In this paper, the planetary gear mechanisms were composed with two pair of gears, one pair with noncircular gears and the other with circular gears, and these mechanisms were analyzed as a function generator. Then, the mechanisms were classified into swing, swing and rotate, and intermittent and rotate motion, and the restrict conditions were obtained, and examples of synthesis with the displacement curves of practical use were shown. Furthermore, the mechanisms were produced by way of experiment, and by the experiment, it was shown that the noncircular planetary gear mechanisms with nonuniform motion make a function generator with good characteristic.

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