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DETERMINATION OF PARAMETERS OF THE WORKING IMPLEMENT OF A ROOT CROPPER

https://doi.org/10.26897/2687-1149-2021-3-42-48

Abstract

The main condition for feed preparation is to ensure the high quality of the finished product. At the same time, it is necessary to increase the efficiency and durability of the feed chopper by optimizing its design parameters, taking into account the physical and mechanical properties of the processed material. The authors studied the technological principle of crushing root and tuber crops. The paper considers the operation of an industrial rotary feed chopper when processing beets and carrots. The experiment planning method is applied. The strength characteristics of the grinder elements were checked during design (selection of the shape and sharpening angle of knives) and verification calculations for strength (assessment of the strength characteristics of knives). The authors show the influence of the main geometric parameters of the working implement of the grinder - the knife inclination and the sharpening angle of the knives - on the preparation of high-quality feed. It was revealed that the sharpening angle of the grinder knives should be calculated depending on the friction coefficient of the initial material against the grinder body, as well as the type and properties of the supplied material. Based on the data obtained during the laboratory experiment and simulation modeling, in order to achieve greater versatility with the feed chopper, a combined shape of the cutting edges of the knives was chosen - that with a straight and serrated cutting edge of the chopper. Samples of cutting edges at 30x magnification, obtained using an instrumental microscope MMI-2, showed that the optimal shape of the knife is a wedge with a double escapement.

About the Authors

MIKHAIL G. Zagoruiko
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy
Russian Federation


VALENTIN V. Vasilchikov
Saratov State Agrarian University named after N.I. Vavilov
Russian Federation


YURI V. Kataev
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy
Russian Federation


ANZHELA K. Mamakhay
Federal Scientific Agroengineering Center VIM
Russian Federation


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For citations:


Zagoruiko M.G., Vasilchikov V.V., Kataev Yu.V., Mamakhay A.K. DETERMINATION OF PARAMETERS OF THE WORKING IMPLEMENT OF A ROOT CROPPER. Agricultural Engineering (Moscow). 2021;(3):42-48. (In Russ.) https://doi.org/10.26897/2687-1149-2021-3-42-48

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