GRANULATED MATERIAL SUPPLY UNIT FOR COMBINED SOWING MACHINE WITH CONTINUOUS FLOW OR REQUEST-BASED METERING DEVICE Russian patent published in 2023 - IPC A01C7/08 

FIELD: sowing machines.

SUBSTANCE: granular material supply unit of a combined sowing machine with a continuous or request-based flow metering device includes at least one hopper (1) containing granular material such as grain, seeds or agrochemical granules and a feed device located below, communicating with said hopper (1) and containing an air chamber (10) and at least a part of the seed supply chamber. Said air chamber (10) has corresponding side walls (13) that limit its width, a bottom wall (14), an upper wall (15) communicating with the seed chamber leaving the hopper (10), a rear wall (11) which has an air flow inlet, and a front baffle (16), in which there is at least one outlet (17) for at least one air flow for forcing incoming granular material from said air chamber (10) in communication with the seeds ejection chamber structure (30). Opposite to said front baffle (16) and at least part of said upper wall (15) of the air chamber (10) is a selectively removable seed ejection chamber (30), using fasteners and repeating the above profile of the front partition (16) and the upper wall (15). Said ejection chamber has two interchangeable and different designs, one of which is configured to supply granular material in a continuous flow, and the other is request-based.

EFFECT: invention will allow seeding of granular material in a continuous flow or request-based with one sowing machine by quickly replacing one ejection chamber with another ejection chamber of a different design.

9 cl, 26 dwg