STUDIES OF THE INTERACTION OF THE CUSHION OF MODERNIZED UNDERMINING WORKING BODY OF POTATO HARVESTER WITH TUBERS

Given the fact that the efficiency of harvesting such crops as potatoes and jerusalem artichokes, in general, is evaluated by reducing losses during harvesting, which is achieved by minimizing injuring of the tubers, the authors propose an upgraded design of undermining working body. The proposed design is characterized by the presence in ugot sides of the undermining working body rollers with a nap that provides primary separation of the tubers. The design required a series of pilot studies. This article describes the methodology of research, given the pictures used laboratory equipment and its description. Presented the results of experimental studies. Experimental studies aimed at determining the pressure force tuber weight on the roller with a nap. Considering that the nap should not be trampled on, which will lead to the injury of the skins of tubers, the authors also determined the maximum value of the pressure cushion for the tubers. Analysis of these studies has allowed to substantiate the rational weight of rollers, which will permit the free passage of tubers under them without injuring of tubers