STRIPPER BEATER FOR THRESHING UNIT Russian patent published in 1997 - IPC

FIELD: agricultural engineering. SUBSTANCE: stripper beater has working peripheral surface with two convex joined cylindrical surfaces, whose generatrices have different curvatures and extend in parallel with axis of rotation of beater. Convex surfaces of beater are oriented in opposite directions. Convexity of cylindrical surface remote from axis of rotation is oriented in direction opposed to that of blade and has greater convexity extent. Axis of symmetry of working surface of each rib is extending along rib, which is oriented in tangential direction. Such construction allows grain thrown by beater blade onto straw shaker to fall below layer of stalk mass thrown by the same blade. As a result, separation of grain on front part of straw shaker is improved. EFFECT: increased efficiency, organized flow of grain and stalk mass and, as a result, improved separation and reduced damage to grain. 4 dwg