Методика определения параметров ИПК для цилиндрических и конических прямозубых колес с коэффициентами перекрытия больше двух

Abstract

Cylindrical and conical gears are widely used in the actuators of aircraft turboprop and gas turbine engines. Up to 90% of cylindrical and up to 50% of conical aircraft transmissions are straight-toothed. Improving transmissions by increasing the overlap factor of more than two leads to a decrease in the load of the teeth, and, accordingly, the overall dimensions of the transmission. This is achieved by changing the parameters of the initial outline with the tooth head height coefficients greater than one. The expressions by which it is possible to determine the height coefficient of the tooth head at the overlap factor more than two are obtained. This allows to improve the mass-dimensional characteristics of gears, increase the smoothness of engagement and load capacity.