Estimation of the Resource of Spiroid Transmissions by the Condition Maximum Wear and Tear

Abstract

The paper provides a brief description of the reasons for the failure of machine drives based on meshing, as well as worm gears, as a result of their operation and contact loads on the active surfaces of gear wheels, which leads to malfunctions, breakdowns, failures in the form of wear, scuffing, abrasion. The existing method for calculating endurance, taking into account the variability of loads and the number of cycles of their action on contact endurance and endurance of cogs in bending, used in strength calculations of spur and helical cylindrical gears, is described, and an analysis of methods for assessing the resource of gears is presented. The necessity of creating a method for estimating the resource according to the condition of the maximum wear of spiroid gears, taking into account the stepped mode of action of loads on the output shaft of the gearbox, is justified. The presented method for predicting spiroid gears by wear makes it possible to take into account the stepwise loading mode of the drives of lifting and transport machines. While using the experimentally obtained dependence of the wear intensity of the cogs of the spiroid wheel on the values of the torque on the output shaft of the spiroid gearbox, it is possible to calculate the resource of the spiroid gear taking into account the equivalent torque.