SOWING ELEMENT FOR PNEUMATIC PRECISION SEED DRILLS Russian patent published in 2018 - IPC A01C7/04 

FIELD: agriculture; engineering.

SUBSTANCE: sowing element for pneumatic precision seed drills comprises gasket (15) located between the fixed surface of the air manifold and the rotating surface of the sowing disc. Gasket (15) comprises a central portion on whose part of the periphery sealing sector (24) is mounted, in it annular channel (25) is arranged. In this case, gasket attachment means (28, 29) are provided between the central part of the gasket and the sowing element manifold. Said central part comprises first and second flange elements (21, 22) which are connected to each other in displaced planes. Said first flange element (21) is located between second flange element (22) and sealing sector (24). Fastening means (28, 29) are provided between second flange element (22) and the manifold. First and second flange elements (21, 22) have a flat extension. In this case, the planes of first and second flange elements (21, 22) are displaced at increasing distances from sealing surface (30a, b) of sealing sector (24). In addition, first and second flange members (21, 22) are connected to each other by conical part (23). First flange element (21) connects said sealing sector (24) to said conical part (23) and is in contact with said sealing sector (24) and said conical part (23) on opposite sides in the radial direction.

EFFECT: use of the invention will reduce the wear of the gasket and the sowing disc and thereby improve the performance of the seeder and its productivity.

9 cl, 3 dwg