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The purpose of the research is to study how the shape of a geometric profile of the periodic raceway affects kinematic accuracy and smooth operation of the resourceeffective planetary radial plunger transmission with intermediate rolling bodies. The shape and computer model for a geometric profile of the periodic raceway of the planetary radial plunger transmission are proposed. The profile under study is constructed from the equation of a periodic curve in the form of a circle with an offset center. The transmission with the proposed profile is characterized by increased kinematic accuracy and smoothness of operation. A comparative analysis of kinematic errors of the planetary radial plunger transmission was performed for two profiles of raceways having different geometric shapes, and diagrams were constructed. Kinematic parameters of the transmission with the periodic raceway profile in the form of an eccentrically offset circle were improved. It was established that the use of the planetary radial plunger transmission with the periodic raceway profile constructed from the equation of a periodic curve in the form of a circle with an offset center significantly improves (three times or more) such transmission characteristics as kinematic accuracy and operation smoothness compared to the geometric profile in the form of arcs of circles. Keywords— planetary transmission, periodic raceway, kinematic accuracy

OPTIMIZATION OF GEOMETRICAL PARAMETERS AND ESTIMATION OF KINEMATIC ACCURACY OF RESOURCE EFFECTIVE PLANETARY TRANSMISSION