RESEARCH OF TRIBOLOGICAL MINERAL AND VEGETABLE LUBRICATING COMPOSITIONS PROPERTIES

Abstract

The research purpose is improvement of rapeseed oil as a lubricant composition alternative to use of mineral oil for mechanical transmissions with hydraulic control tractors «Kirovets». Tribological properties of the mineral and vegetable lubricating compositions were evaluated by a number of indicators which together describe the efficiency of its application in gearboxes driveline high horsepower tractor «Kirovets» production company CCS «Petersburg tractor plant». Efficiency of mineral and vegetable lubricating compositions application were evaluated in such parameters as: the wear of the friction surface during studies; assessment of kinematic viscosity, temperature of friction. It is established that kinematic viscosity at 100°C explored mineral and vegetable lubricating compositions with concentration of rapeseed oil from 0 to 100% by volume meet required to mineral oils requirements, and is within 8.0-10.5 sSt and their use allows to reduce the wear of the friction surfaces and attributable to their thermodynamic load. As a result, the analysis of the obtained data, rational recognized mineral and vegetable oil composition with the following composition: 50% mineral oil M-10G 2 + 50% rapeseed oil. The application of this lubricant composition, possessing the best tribological properties, alternatively, mineral oil M-10G 2, will reduce thermodynamic load and wear of the friction surfaces of structural elements (friction discs), determine the resource gears with hydraulic control tractors «Kirovets».