ROTARY WORKING TOOL Russian patent published in 2003 - IPC

FIELD: agricultural engineering. SUBSTANCE: rotary working tool has disks and bushings with inclined bases mounted on horizontal polyhedral shaft. Receptacle surface for polyhedral shaft is formed in stop bushing. One of bushing bases has straight surface. Disks are equipped with teeth and positioned in angular offset relation with respect to one another on shaft. Disks are inclined with respect to shaft axis at an angle corresponding to inclination angle of bases of bushings joined thereto. Length of bushing and outer diameter of disk are determined from certain dependence. Operating surface of one tooth and non-operating surface of other tooth are arranged perpendicular to one another and have rounded portion of certain radius. EFFECT: wider operational capabilities, enhanced reliability in operation and provision for effective preparing of soil. 4 cl, 2 dwg