SU1738128A1 - Device for separation of roots and tubers from foreign bodies - Google Patents

Abstract

The invention relates to the field of agricultural machinery. The purpose of the invention is to increase the efficiency of separation of root crops from impurities. The device contains a feed bar conveyor 1. On two adjacent bars 2 of the conveyor, fingers 3 are mounted by means of a bar, forming a finger separator of impurities, which is located on the side of the discharge part of the screw 5. Screw 5 is installed above the working branch of the conveyor 1 with a gap exceeding the height of the fingers 3. during the operation, the impurities are trapped by the fingers 3 of the impurity separator on the surface of the conveyor 1, captured by the fingers 3 and removed from the harvester. 2 Il.

Description

The invention relates to agricultural machinery, in particular, devices for separating impurities from root crops used in machines for harvesting, for example, fodder and sugar beet.

The purpose of the invention is to increase the efficiency of separation of root crops from impurities.

 FIG. 1 shows schematically a device for separating root crops from impurities, side view; fig 2 is the same, top view.

The device contains a feed bar conveyor 1, on two adjacent bars 2 of which fingers 3 are mounted by means of a bar, forming a finger separator 4 of impurities. The fingers 3 are made flexible and are located on the rods 2 successively one after another in a row from the side of the unloading part of the screw 5 installed above the working branch of the conveyor 1. The screw 5 is mounted above the working branch of the conveyor 1 with a gap exceeding the height of the fingers 3.

The height of the fingers 3 is less than half the diameter of the conditioned root. The rotation of the screw 5 is opposite to the direction of movement of the working branch of the conveyor 1. A receiving conveyor (not shown) is located under a similar part of the screw 5.

The device works as follows.

A pile consisting of root crops, soil and vegetable impurities enters the working branch of the feeding conveyor 1 to the screw 5, the turns of the screw 5 interact with the roots, move them to the side along the axis of rotation of the screw 5. At the same time, the roots are intensively mixed by turns of the screw 5, cleaned from soil and plant sticking to them

of impurities, part of the soil lumps is destroyed and, basically, the soil is either sifted or leaves the conveyor 1 together with small vegetable impurities, having passed through the gap between the screw 5 and the working

branch feed conveyor 1. In addition, fingers 3 finger separator 4 passes through a pile of root vegetables and, as it were, comb out vegetable impurities coming along the side surface of the working branch of conveyor 1 from the side of the unloading part of the auger 5. Catching fingers 3 weed plants carry out conveyor 1 beyond. Since the height of the fingers 3 is less than half the diameter of the conditioned root, the cleaned roots are wound with the turns of the screw 5 and are displaced along the surface of the feeding conveyor 1, cross over the fingers 3 and fall onto the receiving conveyor.

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Claims (1)

Apparatus of the invention for separating root crops from impurities, comprising a feed conveyor, an auger mounted above its working surface, and a finger impurity separator, characterized in that, in order to increase the efficiency of separating the root crops from impurities, each finger of the separator is mounted on two adjacent conveyor rods, and the fingers are located in a row along the length of the conveyor from the discharge part of the screw.