CALCULATION AND COMPUTER MODELING OF STRESSES AND DEFOR-MATIONS OF PLANETARY BALL AND ROLLER GEARS

Abstract

The article discusses issues related to the assessment of stresses and elastic deformations in planetary ball and roller gears. On the basis of methods for determining contact stresses and deformations of contacting bodies, a methodology has been developed and mathematical dependences of calculating contact stresses and displacements of the gearing parts of these gears on the action of normal forces have been proposed. The values of the greatest contact stresses and deformations of the links of the planetary ball and roller gears, obtained by calculation according to the developed methodology and characterizing the load capacity and transmission accuracy, are presented. Computer models have been developed to calculate contact and bending stresses and deformations and to assess the stress-strain state of the studied roller transmission, taking into account the external normal forces acting simultaneously on the engagement parts.