SIEVE PART OF GRAIN CLEANING MACHINE Russian patent published in 2004 - IPC

FIELD: agro-industrial complex. SUBSTANCE: sieve part has upper single-tier sieve shoe and lower double-tier sieve shoe, which are mounted for performing harmonic oscillating motions. Shaking conveyor is arranged above upper sieve shoe. Tilt board is arranged under upper sieve shoe. Tilt boards are pivotally fixed between lower sieve shoe tiers. When tilt boards are positioned along line connecting their axes of rotation, continuous rectilinear surface is defined, which is impermeable for particles of material under process. Shape and length of tilt boards between lower sieve shoe tiers provide for successive or parallel operation of lower sieve shoe tiers. EFFECT: increased versatility and simplified construction of sieve part. 2 cl, 2 dwg