Технологическое обеспечение трения качения и трения скольжения в зубчатых передачах

Abstract

The article considers the conditions of contacting spur gear and technological methods vozdeystviya in the formation of the involute surfaces of the teeth at which the slippage of the teeth of one gear relative to the tooth profile of the mating wheels and of the force of friction-slip. Loss of energy to friction in gears comes to 10% of the total energy loss to overcome friction. From gears energy loss occurs in the teeth due to their friction with the discrepancy of the accuracy of manufacturing gears according to the norms of kinematic precision, smoothness of norms, standards lateral clearance according to the requirements GOST-81 and feature of the tribological contact of involute mating surfaces. It is shown that for strength calculations of cylindrical gear wheels is necessary to consider in addition to dynamic loading and effort of rolling friction-slip in gears. In toothed cylindrical gears rolling friction much less than sliding friction, therefore, one of revolyuysii scientific fields is to reduce and minimize the phase slip of the mating involute profiles of gear wheels taking into account the changes of parameters of surface layer condition of teeth: roughness, waviness, hardness, physical and mechanical properties of material of gear wheels.