SU1217287A1 - Rotary separator - Google Patents

Description

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular, to devices for separating potatoes and other root and tuber crops from impurities.

The aim of the invention is to increase the destructive and transporting ability of a rotary separator and reduce the damage of harvested roots.

FIG. 1 schematically shows a rotary separator; in fig. 2 - the same, top view.

The rotary separator consists of an inclined frame 1, separating disks 2 mounted on parallel shafts 3, combined in sections, installed perpendicular to the direction of mass movement. Each third of the 1-fourth separator shaft 3 is installed below the previous one in order to obtain a differential of the separation surface. The height of the drops decreases with distance from the beginning of the separator, and the angle of inclination of the separating surfaces of each section along the separated mass decreases.

Large angles of inclination of the separating surface to the bottom of the furrow of the first cascades contribute to the partial rolling of the clods of soil along the separator and re-acting on them last, which allows more intensively loosening the soil layer.

At the same time, the separated root crops are found in the thickness of the soil and are well protected from the damaging effect of the separator.

The rotary separator works as follows.

The undermined layer of soil enters the separating disks 2 of the first section, which are partially loosened and transferred to the second section. After the second section, the soil layer under its own weight sinks and breaks down at the first maximum height of the differential. The roots and tubers are in the soil and are not damaged. Further, the soil layer is milled by the disks of the following sections, reduced in thickness due to sifting of the destroyed soil, and additionally crushed by the following drops.

Reducing the tilt angle of the separable surfaces of each next section along the technological process allows reducing the damageability of the harvested product by preventing the tubers from rolling down along the separator and avoiding repeated exposure of the separated disks to them.

A decrease in this angle of inclination also contributes to an increase in the living section of the separator slots of the separator (the projection of the area of the slots on the horizontal plane), which increases the soil's permeability.

2

Compiled by A. Barsov

Editor K. VoloschukTehred I. VeresKorrektor A. Zimokosov

Zayaz 1018/1 Circulation 679 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (2)

1. ROTARY SEPARATOR, consisting of parallel shafts with impeller discs mounted on them, united in sections, the sections being installed with a height difference, characterized in that, in order to intensify the destruction, transportation and separation of the soil and reduce damage to root crops, section difference in height and the angle of inclination of the separating surface of each section relative to the horizontal plane is made decreasing the length of the separator. 2. The separator by π. 1, characterized in that, in order to avoid unloading the mass during operation of the separator with a digging device in the form of a ploughshare, the angle of inclination of the separating surface of the first section to a horizontal plane is equal to the angle of inclination of the digging blade g ha. * Ah-phi $ -1 yo □ o ^ 1