| 摘要 |
FIELD: agriculture. ^ SUBSTANCE: group of inventions relates to agricultural machine building. A louver sieve comprises a frame, louvers in the form of combs and mechanisms of louvers opening adjustment. Adjustment mechanisms are connected with adjustment planks arranged in the front and rear part of the sieve, which are movably connected with cranked rotary axes. Combs of the front part of the sieve are made in the form of plates. Lower plates of the front comb are fixed to the sieve frame, and the upper plates are fixed to the cranked rotary axes. Combs of the back part of the sieve are made in the form of a bent plate and are fixed on the cranked rotary axes in the area of bending. During operation air flow speed is provided above the front part of the sieve that is not less than the minimum speed of the main component hovering, and above the back part of the sieve - less than the speed of the main component hovering. ^ EFFECT: inventions provide for high quality of grain treatment. ^ 6 cl, 2 dwg |
