RU221377U1 - Device for spreading Trichogramma - Google Patents

Abstract

The utility model relates to agriculture, in particular to devices for biological protection of plants from pests. The device for spreading Trichogramma consists of a hopper with sleeves, a distributor and a direct current source, the surface of the confuser is made in the shape of a logarithmic spiral, and power is supplied to the plate with holes separating the hopper from the confuser from a constant source through a cyclic time relay. The technical result consists in eliminating mechanical damage to Trichogramma, improving the quality of its distribution and increasing the efficiency of its use. 2 ill.

Description

The utility model relates to agriculture, in particular to devices for biological protection of plants from pests.

Trichogramma is the most delicate living organism. Even minor mechanical impacts can lead to a sharp decrease in its biological effectiveness. The low application rate of Trichogramma 3.0...10.0 g/ha, due to natural features, creates significant difficulties in dosing and dispersing this biomaterial throughout the cultivated crop.

Recently, there have been attempts to create some installations to mechanize the spread of Trichogramma.

A known prototype is an installation for the dispersal of Trichogramma (invention patent RU No. 2038782, IPC (2006) A01K 67/003). The proposed device consists of a hopper equipped with vertically installed parallel sections, while the infection chamber is equipped with upper and lower hatches with valves, between which vertical plates are installed in parallel, made of metal and coated on both sides with a dielectric material and connected to a source of electrical charges, and sections of the hopper for pest feeders are installed above and between the plates of the infestation chamber, and the upper and lower valves are interlocked and have a drive for their movement with a reversing mechanism; in addition, the receiving hopper at the outlet has two hoses with a changeover valve, one of which is connected to the feed hopper via an air duct pests

The disadvantage of the prototype is the complexity of the design, the presence of many mechanical parts, such as pipelines, dispensers, etc., as well as the impact of air flow. As a result of this, Trichogramma receives mechanical damage and loses its viability, thereby reducing its biological effectiveness.

The utility model is based on the technical task of eliminating mechanical damage to Trichogramma, improving the quality of its distribution and increasing the efficiency of its use.

The posed technical problem is solved by the fact that the device for spreading Trichogramma, consisting of a hopper with sleeves, a distributor and a direct current source, the surface of the confuser is made in the shape of a logarithmic spiral, a plate with holes separating the hopper from the confuser is connected to the tractor generator through a cyclic time relay

The combination of the above design changes is a necessary and sufficient condition for the implementation of the technical task underlying the utility model, with the achievement of a technical result

The utility model is illustrated with drawings.

In fig. 1 schematically shows the proposed device for dispersing Trichogramma; FIG. 2 shows a plate with holes.

The device is a structure mounted on serial sprayers and other agricultural implements (Fig. 1). The installation consists of a power source 1, a cyclic time relay 2, 3 conductors supplying power from the power source 1 through a cyclic time relay 2 to a plate with holes 6 (Fig. 2) along a plastic guide 4, a hopper 5, and a confuser 7. The cyclic relay includes contains 8 making and breaking 9 output contacts that switch current. A plate with 6 holes separates the hopper from the confuser. Plate 6 is made of conductive material, through the holes made in it, the biomaterial passes to a confuser made in the shape of a logarithmic spiral, like:

where r _i is the current radius vector;

r ₀ - initial radius vector;

ϕ is the angle of friction between the trichogram and the confuser;

θ _i - current polar angle.

This shape of the confuser, made in the shape of the sliding lines of the trichogramma, reduces friction, which contributes to better sliding of the biomaterial at the moment of its exit from the outlet of the confuser.

The proposed sprayer works as follows.

Power from DC source 1 is supplied to cyclic time relay 2. The power source is a 24 V tractor generator. When contact 9 is closed, a negative charge is supplied through conductor 3 to the plate with holes 6. The charge of the trichogramma body interacts with the charges on the plate. The resulting mechanical forces are directly proportional to the product of interacting charges. These forces prevent the movement of insects through the holes in the plate 6 until they stick to the surface of the plate.

When contact 9 is closed, the power supply to plate 6 stops, the biomaterial passes through the holes of plate 6 to the confuser 7 made in a logarithmic spiral, reducing the sliding friction of the trichogram on the confuser, which contributes to better sliding of the biomaterial at the moment of its exit from the outlet of the confuser. The biomaterial is dumped onto the processing facility.

Using a cyclic time relay (brand RSV-15-3) 2, automatic switching of power is carried out from a direct current source 1 to a plate with holes 6. The relay is pre-configured with a range of time delays: pulses from 0.1 s to 30 h and pauses from 0 ,1 s to 30 h.

The proposed device eliminates mechanical damage to Trichogramma, activates its vitality and increases the efficiency of its use.

Claims (1)

A device for the dispersal of Trichogramma, containing a hopper, a confuser, the surface of which is made in the form of a logarithmic spiral, a plate with holes separating the hopper with the confuser, a power source, a cyclic time relay, conductors supplying power from the power source through a cyclic time relay to the plate with holes, Moreover, the device has the ability to operate from the tractor generator.

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