ГЕОМЕТРИЯ ОСТОВОВ СОСТАВНЫХ ПЛУЖНЫХ ЛЕМЕХОВ КОМПАНИИ «КУН» ПОСЛЕ ИХ ЭКСПЛУАТАЦИИ

Abstract

The widespread use of imported plows raises the question of ensuring the proper durability of their parts. Ploughshare is the most loaded structural elements in terms of wear. The lack of reliable information about wear, its specifics and the geometry of the worn part makes it difficult to develop effective recovery technologies. (Research purpose) The research purpose is in studying the specifics of the geometry of the cutting part of the frames of composite plowshares manufactured by the "KUHN" after their decommissioning. (Materials and methods) Ploughshares was used as controlled parts, which were used in plowing sandy loam and light loam soils. Their number was 60 units, which corresponds to the rules of probabilistic and statistical processing in accordance with the Shapiro- Wilk criterion. (Results and discussion) The minimum values of the residual width occur in the heel area for all the studied ploughshares, which is explained by the relatively low rigidity of the studied area, as well as the presence of significant vibrations. If the wear is about 80 millimeters, it is impossible to restore the skeleton by the method of compensating elements due to insufficient rigidity of the structure. Most of the skeletons have a residual width of about 85 millimeters, and in this case, it is possible to renovate the ploughshare. The nature of the distribution of the residual width along the length of the frame is approximately the same for most parts and is characterized by a decrease in the minimum values of the residual width from the nose to the heel area. There is a sharp decrease in the area from the toe to the section passing through the middle mounting hole. (Conclusions) The width of the repair insert is regulated by the minimum value of the remaining width of the frame. The profile of the worn area is virtually the same for all parts. In the array of studied parts, there are products whose profiles and values of the residual width differ significantly from the typical ones.