SU1701165A1 - Grain harvesting machine - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery, namely, devices for combine harvesters. The purpose of the invention is to increase the productivity of the combine and reduce grain losses. The harvesting machine contains a transporting device with a mesh part 8 of the bottom, made in the form of augers 5 with radial vanes 6. The grain pile is shifted by augers 5 and moves to the mesh part 8, upon reaching which it falls under the action of the air flow and blades 6 The latter throw it into the empty area the mesh part 8 of the bottom due to the inclination of the clamps to the sides} of the rotation of the screws 5. The flaps 13 mounted on the ridges of the bottom guide a pile converging from the end of the radial blades 6 it is intensively blown by the air flow, which leads to its separation by the difference in the air-like properties of the grain and straw impurities. 1 h. ff, 3 silt

Description

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Claims (2)

Claim 1. A grain harvesting machine containing a device for collecting processing products a screw-type conveying device with radial blades rigidly fixed in the area of the perforated bottom and grain moving means located below it, characterized in that, in order to increase productivity and reduce grain losses, the screw blades are installed with a step S = (1, 2-1,7) /?, where R is the radius of the screw. 2. Machine by π. 1, characterized in that the conveying device is equipped with shields mounted on the bottom between the screws with an inclination in the direction of rotation.