FIELD: agriculture.;SUBSTANCE: invention relates to the field of agriculture. The device contains a transparent impact-resistant cylindrical housing with a replaceable block of knives. Inside the housing there is a vertical screw with a constant pitch, which with its lower end rests on a thrust bearing located in the lower support of the knife block and lubricated through an oil press. The upper end of the worm shaft also rests on a thrust bearing located in the upper support, and is lubricated through an oil press located in its housing. The worm is driven by a gear motor through a chain drive. The replaceable unit is attached to the housing using four hinged screw clips, which make it possible to be quickly remove and install it. The knives are made of rectangular plates, all the sharp edges of which have a one-sided identical sharpening angle and are located in the grooves of the replaceable block at a distance from each other at an angle of 90 degrees. To avoid falling out of the ducts, the knives are fixed with an annular spacer, which is pressed between the end of the case and the outer edge of the knives. The housing with the drive and recording equipment are located on the frame. Force-measuring sensors are located along the entire height of the cylindrical housing and on the knife block, transmitting information to the recording equipment. ;EFFECT: expansion of technological capabilities in the study of the cutting process is ensured, increasing the reliability, accuracy and quality of measurements carried out while simplifying the design of the device. ;1 cl, 1 dwg
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