Prysyazhnyi V. Substantiation of parameters of sieve scoop with hinged grab teeth for loading and cleaning of sugar beet roots

The thesis deals with theoretical and experimental investigation of the process of loading and cleaning of sugar beet roots, of influence of the mode of fluctuations of grab teeth on the degree of screening soil from beet stuff. Proved is appropriateness of use of the new work member - the sieve scoop for loading sugar beet roots from field clamps by height of 2.0-2.5 m. Owning to this, loss of beet raw materials grow shorter, its quality will increase, and the scooping efforts will diminish. On the ground of an analysis of existing beet loaders, their work members and means of intensification of processes of loading, a design-technological scheme is offered and a new working member for a universal loader, which presents itself a sieve scoop with hinged grab teeth, is manufactured. Developed is an analytical model of soil separation from piles of roots, which allows theoretically determining the optimum parameters of the process of loading of sugar beet roots by sieve scoop with hinged grab teeth. Experimental studies showed that using a universal loader with a sieve scoop in the process of sugar beet harvesting with field clamping allows separating soil scooped from the pile bed, reducing the scooping efforts and general soilness of beet stuff and beet damage. The calculated technical and economic effect because of introducing of the new work member is equal to UAN 29.56 per one tonne of roots.