DEVICE FOR SUPPLYING SOLID PARTICLES UPON REQUEST, USED IN AGRICULTURAL EQUIPMENT Russian patent published in 2022 - IPC A01C7/00 

FIELD: agricultural equipment.

SUBSTANCE: invention relates to a device for supplying solid particles, which can be used in agricultural equipment. The device contains compressed air source 12, distributor 11 of solid particles “S”, hopper 10, a bottom of which supplies solid particles “S” into the distributor, and air-permeable plate 31, on which S-particles settle. Inside distributor 11, there is upper channel 28 and lower channel 29, located vertically and separated from each other. The upper channel ends with vertical wall 30, which, in the lower part of the distributor, rests against the edge of plate 31 and crosses it, forming prong or free edge 32, which, in turn, together with second wall 10, 10a, forms a chamber. Second wall 10a continues downwards, is strictly parallel and remote from first vertical wall 30, forms vertical chamber 33. Outlet 26 of nozzles 24 forms second channel 29 communicating at point 26 with specified vertical chamber 33. Outlet 26 of nozzles of first row 24 of second channel 29 faces nozzles of second row 35, aligned along axis 24, and inlet 34 of nozzle 35 coincides with second vertical wall 10a. An airflow “C” entering distributor 11 is divided into two airflows: upper Cs and lower Ci, entering the above-mentioned upper channel Cs, while the airflow Ci is directed to nozzle of first row 24. First channel 28 has flap 37, which regulates the intake of the airflow Cs passing further through a shielded plate. Seeds “S” are advanced by the flow “Cs” over prong 32, fall into vertical chamber 33, are picked up and carried by the increasing air flow Ci.

EFFECT: device provides recombination of flows, which prevents blocking of seeds and reduction in a flow of seeds, when blocked.

5 cl, 5 dwg