Selection of displacement coefficients in external and internal involute gearing of planetary rotor hydraulic machine

Abstract

Hydraulic and pneumatic volume displacement machines are commonly the most important and integral elements of modern mechanical systems. One of the known types of such machines is planetary rotary hydraulic machines (PRHM) with floating satellites in contact with central gearwheels. The numbers of the central gearwheels «waves» M and N may be different or the same. The article considers the case of the same number of «waves» when the central wheels are round. The algorithm of selection of the range of permissible values of the PRMM displacement coefficients, in which the central wheels of internal and external gearing have the same number of teeth, is proposed. Equal number of teeth is proposed to be obtained by application of maximum values of positive displacement of tool in processing of central gearwheel with internal gearing. The calculation was carried out according to formulas according to GOST 16532-70 and GOST 19274-73, which are based on the module “Shafts and mechanical transmissions” of the Kompas 3D software complex.