ОБОСНОВАНИЕ ТЕХНОЛОГИЙ УПРОЧНЕНИЯ И ВОССТАНОВЛЕНИЯ ДЕТАЛЕЙ РАБОЧИХ ОРГАНОВ СКОРОСТНОГО ПЛУГА ПСКУ

Abstract

High-speed plows of domestic production have been widely used in recent years. The resource of parts of the working bodies and their durability cannot be considered sufficient, although these indicators are comparable with those for plows imported into the country. The aim of the research was the development of technologies for strengthening and restoring parts of the working bodies of highspeed plows of the PSKu series, based on the geometric shape of wear. Structural elements of the working bodies, both in the state of delivery and decommissioned, became prototypes for the creation of restoration and hardening technologies. Electrodes for various purposes, as well as a composite abrasive-resistant material developed at the Bryansk State Agrarian University, were used as materials. The experimental parts were tested in full-scale conditions when plowing loamy soils. 24 products of each name were monitored. The operating time was 25 hectares per case. As a result of the work performed, it is shown that radial wear is eliminated by welding with electrodes that provide an abrasion-resistant coating. If the residual wear thickness is 2 mm and through-wiping is present, their elimination is carried out by surfacing on pre-installed electrodes or by applying an abrasive-resistant epoxy-sand composite. For hardening, it is necessary to carry out surfacing reinforcement of the surfaces of the most likely occurrence of wear and areas that have been subjected to technological influences during restoration, as well as to carry out a strengthening surfacing of the back of the left and vertical knives.