SU1416076A1 - Coulter for pneumatic drill - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery. The purpose of the invention is to provide a soil layer between the seeds and fertilizers while sowing them simultaneously. The opener contains an anvil 1, a tube bent in a spiral 2 with openings in the wall, a movable elastic nozzle 3. A cross section

Description

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The outlet tube progressively increases as it approaches the outlet and forms a sediment chamber. A cylinder A, which is movable relative to the axis of rotation, is attached to the outlet end of the tube; inside it there is an elastic partition 5, the upper end is connected to the tube by means of a finger, and the lower end is connected to the lower ic. In the sedimentary chamber, the seeds and fertilizers are divided into two isolated streams. The fertilizers by an elastic partition are directed to the bottom of the furrow formed by the tip of the working body of the soil-cultivating machine, and the seeds are directed to the soil layer formed by the spreaders. The quality of separation of seeds and fertilizers is regulated by blocking the holes in the wall of the tube due to the displacement of the elastic pipe. 2 hp f-ly, 2 ill.

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; FIELD OF THE INVENTION The invention relates to agricultural engineering.

j The purpose of the invention is to provide

seed layer between seeds

and fertilizer while their

more beautifully.

Figure 1 shows the proposed blinder, side view; figure 2 - the same, LID above.

 The opener of the pneumatic cutting machine includes the working unit of the soil tillage machine, the tractor 1, the tube bent iio helix 2. The tube in its bent part has holes in the wall that are wired along the line defined by the minimum radius of curvature; This arrangement of the IB wall openings in the tube prevents them from killing the transportable material with small particles, since the material is deposited on the curvilinear section of the pipeline through the action of centrifugal POWER on the opposite wall described by the maximum radius of curvature. In addition, in the final section, the cross-section of the tube progressively increases as it approaches the outlet. This section of the tube is a sediment chamber in which the separation of material flow occurs.

To change the speed of air movement on the tube, a flexible elastic nozzle 3 is provided. A cylinder 4, which is movable relative to the axis of rotation, is attached to the output end of tube 2, inside which is placed an elastic partition 5, upper end connected to the tube by means of a finger part of cylinder 4 is included in the load of 6 seeds and fertilizers.

To form a soil layer between the fertilizers and the seeds on the opener, symmetrically arranged dumpers 7 are provided.

In operation of the pneumatic sowing apparatus, seeds and mineral fertilizers from separate bins are fed to a common pneumatic actuator and transported in a mixed form. In the spiral section of the tube, the velocity of the material decreases due to the force of friction. This significantly reduces the size of the sediment chamber.

As the cross-sectional area of the tube in the zone of the sediment chamber increases, the air velocity decreases. Therefore, the granules and seeds having substantially different aerodynamic characteristics are exfoliated. Sowing material with a high coefficient of windage is concentrated at the outer contour of the tube, and with a small one at the bottom. Upon further movement of the material flow, an elastic partition 5 separates the seeds and fertilizers into two isolated from each other.

According to the agrotechnical requirements, fertilizers should be placed in the soil below the seeds. In this connection, if the seeds have a higher windiness than fertilizer, cylinder 4 is turned half a turn around the axis. In this case, the partition 5 is deformed along a helical line, as shown in FIG.

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and fertilizers are directed to the bottom of the groove formed by the tip of the working body 1, and the seeds are fed to the soil layer, which is made from an oval 7,

In the event that the mineral fertilizer windage is higher than seed, a layer of fertilizer is concentrated at the outer contour of the tube, and at the inner contour - a layer of seed. In order for the fertilizers to be placed below the seeds, the cylinder 4 is turned and set so that the elastic partition 5 is in a vertical position.

Setting the air velocity in the tube, which provides the highest quality separation of seeds and fertilizers, is performed by blocking the holes in the wall of the tube 2 by displacing the elastic tube 3.

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Claims (3)

1. A pneumatical coulter, including an adapter and a spiral-curved tube with holes in the wall and an outlet at the end, characterized in that, in order to provide a soil layer between the seeds and fertilizers, the tube is equipped with a flexible elastic nozzle, the holes in its wall are yen along the line described by the minimum radius of curvature of the spiral. 2. The collar of claim 1, which is similar to the fact that the tube cross-sectional area is made increasing towards the outlet opening. 3. Soshnik according to claim 1, differ-; u and with the fact that at the outlet end of the tube there is a cylinder that is movable relative to the axis of rotation, inside which there is an elastic partition, the upper end is connected with a tube, and the bottom - with a cylinder. jig2