Engineering, Energy, Transport AIC

Kholodyuk Oleksandr – PhD, Senior Lecturer of the Department of "Agricultural Engineering and

Technical Service" of Vinnytsia National Agrarian University (3, Sonychna St., Vinnytsia, 21008, Ukraine,

e-mail: holodyk@vsau.vin. ua).

Spirin Anatoliy – PhD, Associate Professor of the Department of “General Technical Disciplines and

Occupational Safety” of Vinnytsia National Agrarian University (3, Solnychna St., Vinnytsia, 21008,

Ukraine, e-mail: spirin@vsau.vin.ua).

Kovaliova Iryna – Assistant of the Department "Machines and Equipment of Agricultural Production" of

Vinnytsia National Agrarian University (3, Solnyschaya St., Vinnytsia, 21008, Ukraine, e-mail: kovirinka@

vsau.vin.ua).

ASSESSMENT OF THE OF THE ROLL - PICKER WITH COMPETITIVENESS BEATTER

- BLADE GRINDING UNIT

Preparation of different stem forages is a guarantee of balanced feeding of cattle with steady

maintenance. The promising technology of harvesting stalk feed, which allows you to save in the selected

mass of the most valuable fractions - leaves, buds and inflorescences, is the use in the technological

process of press-pickers or pickup trucks-conveyors, which contain a beatter – blade grinding unit with

active disk blades. The milling of the leaf mass is one of the most energy-intensive operations in the

overall process of harvesting, which also depends on the final quality of the resulting feed. The shredder is

the main working unit of the feed assembly, which defines its technological scheme and the location of the

main units. The main structural features of different types of crushers are considered, namely: drum,

disk, rotary and multi-plane cutting, with their disadvantages and advantages in the process of work. The

purpose of the article is to evaluate the various forage harvesting units in the production of haymaking on

competitiveness by comparing their technical and operational indicators. The design and principle of the

proposed beatter - blade grinding unit is described. The main factors influencing the process of cutting the

grass mass are established. The regression equation describing the change in the specific cutting

operation is given, depending on the structural and technological parameters, in particular on the

sectional area of the cut mass and its moisture content. It has been established that the size of the crosssectional

area of the material most influences the optimization criterion. At humidity of alfalfa 45-55%

the specific work of cutting with increasing feed is constantly decreasing, respectively, from 23,6-19,6

kJ/m2 to 6,37-4,10 kJ/m2. The methodology for evaluating the competitiveness of technical means for the

harvesting of cut alfalfa with simultaneous grinding on the dimensionless and generalized indicators of

the 1st and 2nd species is described. It was found that the maximum value of the generalizing index of the

first species is 0.6997, and for the II-th - 3.7960 and corresponds to the prototype PV-6, which is equipped

with a multi-flat cutter.

Key words: evaluation of competitiveness, forage harvesting unit, roll - picker, crushing

apparatus, stalk feed, generalization index, weighting.

F. 17. Tab. 4. Fig. 5. Ref. 8

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