SU1230517A1 - Arrangement for separating admixtures from root vegetables - Google Patents

Description

The invention relates to an agricultural machinery industry, in particular to devices for separating impurities from roots and vegetables used in machines for harvesting potatoes, carrots and other roots and vegetables.

The purpose of the invention is to improve the quality of work and increase productivity by reducing the number of technological downtime of the device.

FIG. 1 shows a device for separating impurities from root and tuber crops, side view; in fig. 2 - the same, top view.

The device is made of a rotating drum 2 located above a bar or finger conveyor 1 with blades 3 fixed to the drum 2 along a helix. Behind the drum 2, in the zone of its impact on the pile above the conveyor 1, the rotor 4 is installed with elastic elastic threads 5 entering the space between the blades 3. The threads 5 attached to the rotor 4 are directed along the radius and touch the cylindrical surface 6 of the drum 2 The elasticity of the yarns is selected so that they can hold and move along the conveyor 1 to the drum 2 root crops and round shape and, due to the deformation of the yarns, at the gathering of the conveyor 1 behind, more heavy stones and soil lumps that have It has a significantly higher coefficient of friction. The rotor 4 has the same direction of rotation with the drum 2 and is installed with the possibility of adjusting the mounting height. In the gathering area of the root crops, to the side of the conveyor 1, there is a receiving transporting working body 7.

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When the device is in operation, a separated pile, including roots and tubers, plant residues in the form of tops and weeds, as well as soil lumps and stones, is conveyed .1 to the drum 2 with blades 3. In the area of heap contact with blades 3, the helix 2 along the helix, the root crops, being cleared of soil, move along the conveyor 1 towards the receiving transporting working device 7. Separated from the soil and other small impurities are sifted through the lumens of the conveyor 1. With an increase in the supply of heaps, some root crops do not have time to move the blades 3 towards the receiving transporting tool 7 and pass under the drum. 2 to the rotor 4, which, rotating, returns these root crops with elastic threads 5 again under the drum 2. At the same time, the blades 3 move the returned roots and crops along the conveyor 5 to the transporting working organ 7. Soil lumps and stones that have passed under the drum 2 Having a higher coefficient (friction coefficient and a large mass, deform the elastic threads 5, fall onto the gathering of the conveyor 1 and dump them onto the floor surface.

The radially elastic yarns 5, when the rotor 4 rotates, the passage in the space between the blades 3 and touching the cylindrical surface 6 of the drum 2, clean these surfaces from sticking soil and plant residues.

Depending on the type and size of the root crops to be processed, the rotor 4 is adjusted to the height of the mount, thereby changing the gap between the ends of the elastic threads 5 and the surface of the conveyor 1.

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Editor I.Rybchenko

Order 2465/3 Circulation 679 Subscription

VNISH1I USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

FIG. g

Compiled by A. Barsov

Tehred J.Gaidosh Proofreader A.Zimokosov

Claims (2)

1. A device for separating impurities from root crops, containing a conveyor, above the working branch of which there is a drum with blades fixed along a helical line, and a rotor installed behind it, characterized in that, in order to improve the quality of work and increase productivity by reducing the number technological downtime of the device, the rotor is made in the form of a cylindrical brush with elastic elastic threads placed in the space between the blades of the drum and interacting with its surface. 2. The device according to claim 1, characterized in that the rotor is mounted with the possibility of adjustment ® according to the mounting height. FIG. 1