METHOD OF PREVENTION OF GRAIN BRIDGING IN HOPPER AND GRAIN HARVESTER Russian patent published in 1997 - IPC

FIELD: agricultural engineering; grain harvesters with grain hoppers. SUBSTANCE: method comes to imparting random variable frequency vibrations to grain for preventing its bridging and to increase fluidity of grain Grain harvester implementing this method has hopper 5 with ridge bottom. Slope 6 of hopper 5 has longitudinal beam 8 connected with frame 2 by means of uprights 9, and slope 7 is made in form of upper inclined wall 10 of axial-rotor threshing and separating device 3. EFFECT: enlarged operating capabilities. 7 cl, 2 dwg