RU2279781C2 - Combination potato digger - Google Patents

Abstract

FIELD: agricultural engineering.

SUBSTANCE: proposed potato digger contains digging working member with beater, system of feeding conveyors, cleaning, separating, and sorting out unit and haulm separator. Sorting out unit is made of cylindrical spiral installed and provided with different length of pitch between turns on different sections over length of spiral. Cleaning unit beaters in form of rods made of flexibly elastic material are secured to inner side of sorting out unit. Separating unit in form of comb made of rods is arranged under sorting out unit. Distance between rods is less than length of pitch between turns of sorting out unit. Containers for small-size, medium-size and large-size potatoes are arranged from side of separating unit.

EFFECT: improved functional capabilities.

Description

The invention relates to agricultural machinery, namely to harvesters for harvesting potatoes.

Known combined potato digger containing mounted on the frame of a digging working body with a beater, a system of feed conveyors, nodes of cleaning, separation and sorting, the tops separator.

The disadvantages of the known combined harvester are low functional properties.

The task the proposed solution is aimed at is increasing functional properties.

The aforementioned disadvantage is eliminated by the fact that the combined potato digger contains a digging body with a beater, a feed conveyor system, cleaning, separation and sorting units, a top separator, and the sorting unit is made of a cylindrical spiral shape having a different step length in different sections along its length spiral coils, and to the inside of the cylindrical sorting assembly from a spiral are attached beaters made in the form of rods of an elastic material.

Figure 1 shows the proposed device, a General view;

figure 2 is an enlarged view of the sorting node;

figure 3 is a view of the node sorting arrow A.

The sorting unit 1 is made of a rotating cylindrical shape from a spiral along the length, having several sections 2, 3, 4, and in each of which the step length between the turns of the spiral is different. For example, in section 2, the step length is 60 mm; on the plot 3 - 70 mm; on the site 4 - 75 mm.

Beaters 5 are attached to the inside of the sorting assembly 1 in the form of rods of an elastic material. Under sorting unit 1, there is separation unit 6 in the form of a comb of rods, while the distance between the rods is less than the step length between the turns of sorting unit 1, and containers 7, 8, 9 for small, medium, and large potatoes are located on the sides of separation unit 6, respectively. The loading of potatoes into the sorting unit 1 is carried out using a system of conveyors 10, on which potatoes with soil residues fall from the digging body 11 with beater 12, passing through the tops separator 13.

The principle of operation of the combined potato digger is as follows: a digging body 11 with a beater 12 feeds the cut soil together with the potatoes to a system of conveyors 10 that transport the potatoes, soil and tops up to the tops separator 13. The tops are dumped onto the ground, and the potatoes with soil residues fall into the rotating unit sorting 1 of a cylindrical shape from a spiral, in which it gradually moves from section 2 to section 3 and then to section 4. During the movement, the soil remains in the space between the bins 7, 8, 9, and the potato the fraction with a diameter of less than 60 mm wakes up between the turns of the spiral of the sorting unit of section 2, larger potatoes move further to section 3 and 4, where it also wakes up between the turns of the spiral, and along the rods of separation unit 6 all fractions fall into the corresponding bins (7 for small, 8 for medium and 9 for large potatoes). Beaters 5 made of elastic material contribute to the gentle regime of cleaning potatoes from pieces of soil. This design of a combined potato digger with a potato sorting unit 1 and a separation unit 6 ensures high-quality cleaning and sorting of potatoes directly in the field.

Claims (1)

A combined potato digger containing a digging working body with a beater, a feed conveyor system, cleaning, separation, sorting units and a top separator, characterized in that the sorting unit is made of a cylindrical spiral with the possibility of rotation, having different lengths between steps along different lengths in turns, while on the inside of the sorting unit are attached the beaters of the cleaning unit in the form of rods of elastic material, and under the sorting unit there is a separation unit, nested in the form of a comb of rods, and the distance between the rods is less than the step length between the turns of the sorting unit, while containers for small, medium and large potatoes are placed on the sides of the separation unit, respectively.

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