STONE-PICKING MACHINE Russian patent published in 2004 - IPC

FIELD: agricultural engineering.

SUBSTANCE: stone-picking machine has frame, running part, windrow-forming sections of chain conveyor having rolls with two parallel rows of straight teeth extending along lines of isosceles triangle sides. Teeth of inner teeth rows are arranged at greater pitch than teeth of outer rows of teeth. Frame is made trapezium-shaped, with horizontal base. Stone-picking conveyor with two inner rows of pulling chains is arranged along axis of symmetry between windrow-forming sections. Rolls are positioned at the end of each row of teeth of windrow-forming sections on stone-picking conveyor. Crescent-shaped teeth are mounted on rolls. Roll teeth of inner row are arranged at greater pitch than roll teeth of outer row of stone-picking conveyor.

EFFECT: increased efficiency in removal of stones from field.

3 dwg