GRAIN HEAP SEPARATOR Russian patent published in 2017 - IPC B07B1/22 B07B1/46 

FIELD: machine building.

SUBSTANCE: invention relates to agricultural machinery, in particular, to an air-sieve grain-cleaning machines, and can be used in the food industry and agriculture for cleaning crop seeds. The grain heap separator contains a cylindrical sieve, waste auger, aspiration and chain drive mechanism, which consists of the sprockets with hubs, one of which is on the gear shaft, and the second one - on the shaft of the cylindrical sieve, connected with the chain. The separator is supplied with an additional cylindrical sieve of a larger diameter. The drive mechanism consists of four sprockets, two of which are leading, located on the gear shaft, and the other two are driven and placed on the shafts of the cylindrical sieve. Leading and driven additional sprockets of the cylindrical sieve are connected by a chain, which has a spring-loaded tensioning device adapted to diametrically arranged grooves in which the hubs are provided with screws.

EFFECT: invention provides improved productivity and quality of cleaning the grain heap.

4 dwg