FIELD: agricultural engineering. SUBSTANCE: drum is made double-sectioned. Lunging whips arranged in first section are connected through rings with spokes. Spokes are attached circumferentially to hub and disposed in rows, with ends of spokes in each row of spokes being connected with one ring. Whips are secured on rings, with whips on similar sign rings being arranged in alternation. Whips staggered in second section are provided with teeth of 20 mm size. Teeth bases are made in the form of logarithmic spiral. Whips have rectangular section. EFFECT: increased efficiency, enhanced reliability in operation. 4 dwg
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