Энергетический показатель истирания рабочих органов сельскохозяйственных машин при взаимодействии с абразивным материалом

Abstract

One of the priority directions of science and technology development in the Russian Federation are: energy efficiency, energy saving, technology of energy-efficient production. In the agriculture the most energy-intensive processes are in tillage, shredded stems by fodder chopper machines and etc. The working units of agricultural machinery exposed to abrasion, which leads to mechanical wear of the material, that occurs as a result of cutting and scratching action on him solids in free or clamped. The obtained formula for determining the energy index of the sample is a rational, because it is derived from the laws of mechanics. The proposed methodology and the resulting energy abrasion index is recommended for the calculation of required energy for wear, when determining the reliability and life of the working units of the various machines, interacting with an abrasive material. The numerical values of the energy index of the sample of working unit abrasion some agricultural machines are in a wide range from 0.416 kJ per kilogram in the spiral of equalizer roller of tillage machines to 1.716 to kJ per kilogram in the tooth of harrows BZS-1.0. The device is suitable for the determination by express - method (the duration of control time on sample attrition is 10 times smaller than a standard device) power indicator abrasion of tested materials in their selection for the production of cheaper and more wear-resistant working units of agricultural machinery, as well as after heat treatment, sputtering work surfaces by wearproof materials.