Сравнение арочной передачи смешанного зацепления с традиционной по геометро-кинематическим показателям

Abstract

The article presents the initial contour’s profile of arch gear of mixed meshing. The addendum of pinion’s tooth and dedendum of gear’s tooth are formed by a line segment, i.e. it creates a traditional quasi-involute meshing. The addendum of gear’s tooth and dedendum of pinion’s tooth are formed by curve which obtained by the synthesis of the given reduced curvature. The method of synthesis is presented; the geometric and kinematic indicators of working capacity are defined. The comparative evaluation of such transmissions’ indicators with the tradition quasi-involute ones is presented. It showed that at the boundaries of the pressure line the most of mixed meshing’s indicators values are higher than the uncorrected traditional in 1,14...6,23 times. The numbers of the pinion’s and gear’s teeth is 18 and 90. The maximum effect of the mixed meshing’s application occurs at the base of the pinion’s tooth. This is due to the fact that the number of teeth is close to the minimum conditions for the absence of undercutting. Therefore, the greatest effect of the mixed engagement is expected in the gears with a minimum number of teeth.