SU1493138A1 - Spreader of seed material for pneumatic sowing machine - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular, to distributors of seeding machines. The purpose of the invention is to increase the longitudinal uniformity of distribution of the sown material. The distributor contains a supply pipe 1, an expanding socket 2, consisting of an upper wall with reflectors, a lower wall and side curved walls 6, the surface of which has the shape of a cylindroid, the curvature of the upper rail of which in the horizontal plane is greater than the curvature of the lower one. In addition, on the side walls 6 wavy corrugations are made with increasing wavelength in the direction of expansion of the socket 2. Behind the socket, there are flow dividers 7, discharge pipes 8 and these wires 9. Particles of sown material in the air flow in the socket 2 fall on the upper wall, where they are reflected from the reflectors, with some of them immediately separated by dividers 7 and sent to the discharge pipes 8 and these wires 9. Another part of the material falling on the side corrugated walls 6 is reflected from them and distributed along the discharge pipes 8 . The shape of the side walls and the presence of corrugations on them increase the efficiency of particle distribution and the longitudinal uniformity of distribution of the sown material. 4 il.

Description

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FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to distributors of seeding machines.

The purpose of the invention is to increase the longitudinal uniformity of distribution of the sown material.

FIG. I shows the distributor of sown materials, a section in the longitudinal-vertical plane, side view; in fig. 2 - distributor of sowing materials, top view, upper wall removed; in fig. 3 is a section A-A in FIG. one; in fig. 4 - scheme of work of the distributor.

The distributor contains a supply pipe 1, an expansion pipe, an icy socket 2 consisting of an upper wall 3 with reflectors 4, a lower wall 5 and side curved walls 6 on which wavy corrugations are made, flow dividers 7, discharge pipes 8 and this 9. The top and bottom walls of the distributor are located at an angle to the supply pipeline, and the curvilinear surface of the side walls has the shape of a cylindroid, the curvature of the upper rail of which is greater than the curvature of the bottom. As you move away from the supply pipeline in the direction of expansion of the socket, the wave length of the corrugations increases so that its projection on the flow direction remains close to constant, and due to the cylindroid shape, the angle of installation of the side walls to the top gradually decreases. The best results in tests of the ex-first1 sample were obtained at a wavelength of the supply line 5 of the pipeline 5, close to the distance between the rows of reflectors / on the upper wall.

The distributor works as follows.

Particles of the sown material, which are in the flow of the air mixture, through the supply pipe 1 enter the socket 2 on the upper wall 3, where they are reflected from the reflectors 4 and are distributed throughout the entire volume of the socket. The part of the sown material, reflected from the reflectors 4, is immediately separated by flow dividers 7 and the direction 0

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It goes to the discharge pipes 8 and then to the wires 9. Another part of the material falls on the side corrugated walls 6 and, reflecting from them, is distributed along the discharge pipes.

As you move away from the supply line in the direction of expansion of the socket, the concentration of particles entering the side walls increases. The efficiency of their distribution is also achieved due to the different angle of incidence of the side wall, depending not only on the distance from the supply pipeline, but also on the height.

Making the side walls of the distributor corrugated with increasing wavelength, as well as smoothly reducing their inclination to the upper wall as they move away from the supply pipeline, allows increasing the longitudinal uniformity of distribution of the sown material by 12-15%. As a result, the seeding rate decreases, the plant nutritional conditions improve, and the yield increases.

Claims (1)

Invention Formula Distributor of sown materials of pneumatic forks, containing a supply pipe, an expanding socket, consisting of an upper wall with reflectors installed at an angle to the supply pipe, with reflectors, the bottom and two side curvilinear walls, installed by the convex inside of the socket, flow dividers, discharge pipes and these wires, characterized in that, in order to increase the longitudinal uniformity of distribution of the material being sown, the curvilinear surface of the side walls has the shape of a cylindroid, the curvature erhney guide which in the horizontal plane greater than the lower curvature, wherein the side walls are made wavy corrugations kotory.h wavelength increases toward ras1pireni funnel. in // - / H h Fi.Z Fig.h