GRAIN CLEANING COMBINE Russian patent published in 2008 - IPC A01D41/00 A01D69/00 

FIELD: agricultural engineering.

SUBSTANCE: grain cleaning combine has thresher and feeding, intermediate and separating beaters placed within casing, two threshing drums, walker-type straw rack and wind and screen type cleaner with grain and tailings elevators. Drive pulleys with V-belt transmissions are mounted on shafts of beaters and walker-type straw rack, at outer side of casing side panels. Combine has main, rear and upper counter-drive shafts. V-belt pulley is rigidly fixed at one side of upper counter-drive shaft and stepped V-belt pulley is fixed at other side of said pulley. V-belt pulley is joined through V-belt with upper V-belt pulley and roll with upper sprocket of tailings elevator scraper chain drive and through other lower sprocket with tailings screw. Stepped V-belt pulley is joined via one step through V-belts and pulleys of intermediate beater with pulley of main counter-drive shaft, via other stage through V-belt with upper pulley and roll - with upper tailings elevator scraper chain drive, and is joined through other lower sprocket with tailings screw.

EFFECT: increased efficiency due to preventing of scraper chains from blocking owing to positioning of grain and tailings elevators scrapers on driving runs, and enhanced reliability in operation.

2 cl, 4 dwg