SIEVE PAN OF GRAIN-CLEANING MACHINE Russian patent published in 2017 - IPC B07B1/12 A01F12/44 

FIELD: agriculture.

SUBSTANCE: sieve pan of a grain-cleaning machine contains the power supply, the multi-tiered sieves unit including sieves installed one above the other with a longitudinal displacement, the sieve unit contains basic sieves with equal holes, solid stores, perforated stores. Each sieve in the unit consists of a perforated store, a main sieve, a solid store and a sieve with the hole sizes smaller than those of the main sieve, and greater than those of the perforated store. The length of the lower perforated stores of the lower sieves is more than the length of the upper perforated stores of the upper sieves. The solid stores of the multi-tiered sieves unit are arranged stepwise so that the lower store beginning is arranged under the upper store end.

EFFECT: increased cleaning efficiency.

1 dwg