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Calculating the Kinematic Accuracy of K-H-V Planetary Gears

Razhikov V.N., Belyaev A.N.


The paper deals with the issues in calculating the kinematic error in K-H-V planetary gears with a small difference in the number of gearwheel teeth and two satellites. For the considered gear the rotation is transmitted from satellites to the output shaft (link V) by means of a mechanism of parallel crank shafts. In calculations the total kinematic error of the gear was divided into two components - the kinematic error of the gear mechanism and the kinematic error of the mechanism of parallel crank shafts. The calculations were performed taking into account the working principles of gears, the specific design (constructive version) and production and assembly technologies. Having considered all the features of operation, we found that the resulting error comprises minor amplitudes in the low-frequency component and significant amplitudes in the cyclical component. Experimental research results are given.


K-H-V planetary gear; multiple-tooth contact; parallel crank shafts; kinematic accuracy

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ISSN 1813-7903 (Print)
ISSN 2413-1172 (Online)