SU141027A1 - Screw cleaner of root crops from the earth and tops - Google Patents

Description

Screw cleaners of root crops are known from earth and tops, consisting of paired counter-rotating ones with an equal number of revolutions of the alcot.

In the process of working with such rolls, the ground, free and associated bottoms are not effectively separated from the root and tuber crops.

In contrast to the known, the proposed screw cleaner, in order to increase the cleaning effect, is provided with a third Gd drum roller having ring-shaped protrusions that cut the tops of the foliage from the roots when they encounter spiral turns of the neighboring roller. The rotation of the roller with the annular protrusions occurs in the direction opposite to the direction of rotation of the spiral-wound rollers.

The drawing shows a screw cleaner of root crops from the ground and tops.

The screw cleaner consists of two spiral rollers U and 2, rotating in the direction shown in the drawing by an arrow, carrying on their side surface spiral tapes 3 and 4 and a third smooth roller 5, having: its annular projections 6 equidistant from each other.

The roller 5 rotates in the opposite direction to the rotation of the rollers / and 2. The screw cleaner works as follows: the spiral tapes 3 and 4 of the rollers 1 and 2 have different winding pitch (1 and / 2) and the rollers / and 2 have the same diameters of the cylindrical part D and rotate in one direction.

The roller 5 is raised above the screw rollers and has a smaller cylinder diameter than rollers 1 and 2. This achieves an effective separation of the bonded soil and loose tops, which are drawn into the gap between the screw and the smooth cylinder. With the passage of the annular protrusions of the roller 5 in the slot x 7 spiral coil occur; abrezka tops from the roots.