RESEARCH ON THE QUALITY OF SEPARATION OF THE POTATO MILLER WITH BRIDGE WORKING AUTHORITIES OF THE POTATO MACHINE

Abstract

From a brief analytical review of the works devoted to the research of the digging working bodies of potato harvesting machines, it can be seen that by the present time considerable theoretical and experimental material has been accumulated, which reveals the regularities of the processes of interaction of working bodies of different structures with the bulbous mass. However, to date, it has not been possible to create a sufficiently efficient, reliable, low-energy device that satisfies all the agrotechnical requirements of a potato harvester and the problem of developing such a device still remains relevant. Considering the urgency of the issues related to the development of the bribery working bodies in the creation of reliable high-performance potato harvesting machines of relatively low energy intensity, in this work the aim is to systematize and generalize the research on modern technologies for growing and harvesting potatoes and to create a new construction of the bribery working potato took together with the tubers a minimum amount of soil and provided the possibility of better crushing of the formation to facilitate separation when increasing the ex plutational productivity, technological reliability of the undermining working body and reducing its traction resistance. According to the results of the researches, a new combined excavator working body was developed, which contains passive brazing blades and detachable discs with soil hooks and provides work at high speeds. The use of new dredging working bodies will increase the purity of the heap ladder by 30.8% compared to the baseline. It is proved that the installation in the excavation part of the discs with soil hooks on the side surface allows to significantly improve the crumb formation in comparison with the basic variant. As a result of the comparative tests of experimental potato diggers equipped with the developed excavating part, with the use of its final rigging. It is established that the use of detachable disc elements in the undercut part significantly reduces the traction resistance of the experimental undercut working body in comparison with the basic variant of their work, improves the cover of the bourbon layer and allows to increase the purity of the pile ladder. Investigation of wear of the developed gear discs during the research period has shown that in the absence of a manufacturing defect, the life of the disks will be equal to the life of the potato harvester.