SU594914A1 - Grain distributor to pneumatic sowing machines - Google Patents

Description

one

FIELD OF THE INVENTION The invention relates to agricultural machine building and can be used in multijet pepmatical zerpotukovye springs.

Devices for distributing a mixture of a mixture of air, including a flat expanding socket with a divider inside it. The bell is made with a height gradually decreasing towards the exit slit, the sidewalls of the bell are curved, and the divider has a wedge shape. In this dispensing device, the curved sidewalls and the divider are essentially reflectors, from which particles in the aerosol 1 flow are reflected into the exit slit.

This distributor has a satisfactory uniformity of distribution of the particles of the fat over the width of the exit slit, however, for the seeds of grain crops, this uniformity will be insufficient. In addition, the reflectors in the form of a wedge divider and curved sidewalls have a complex shape and are bulky, and their presence in the air flow, as well as the outlet section that narrows to the outlet, creates additional resistance, which increases energy loss.

The closest solution known is the distributor of grain materials for pneumatic seedlings, including an expanding socket, on the inner surface of which reflectors made in the form of several dies and outlet nozzles 2 are arranged in a staggered manner.

However, in such a distributor, the combs have a complex structure, and when they hit the edge of the edges of the reflectors, the seeds are injured.

The purpose of the invention is to reduce injuries to seeds and increase the uniformity of their distribution across the width of the socket.

For this, reflectors are made in the form of spherical segments.

FIG. 1 shows a sectional dispenser, side view; pas figs. 2 - distributor with the upper wall removed, view of light1) xy; pas figs. 3 - reflectors, top view (enlarged).

The distributor contains a supply pipe 1 and a straight-expanding bell 2 with parallel upper 3 and lower 4, on the inner surface of which reflectors 5 are installed, having the shape of spherical segments and arranged in a checkerboard pattern, and a tap-off unit is attached to the outlet slit pikch pipes 6 with dividers 7. Seed wires 8 are connected to the discharge pipes 6.

The distributor works as follows.

Particles a, which are in the air mixture stream, fall from the supply of pipeline 1 to the inner surface of the upper 3 and lower 4 walls of the socket 2, where they are reflected from the reflectors 5 in directions b, b w. g (Fig. 1). Since each reflector 5 has the shape of a spherical segment, particles a, falling at different points of its surface, are reflected by it in different directions (Fig. 3) throughout the width of the exit slit of the socket 2. Next, the reconstituted aerosol stream is divided by the dividers 7 and the particles enter the discharge nozzles 6 and from there into this wire 8, which guide them into the coulters or scatter them over the soil.

The chess arrangement of the reflectors 5 increases the likelihood of the particles touching the surface of the segments, i.e. a greater number of particles change the direction of flight. This increases the uniformity of the distribution.

Since the particles are scattered by each reflector 5 over the entire cross section of the socket 2, the particles are evenly distributed over the cross section at a certain distance from the entrance. Dividers 7 are installed at this location, so the number of particles entering the outlet nozzles 6 and further into these wires 8 is slightly different from one another.

The reflectors 5 are small in size and located on the inner surface of the walls 3 and 4 of the socket 2, so they are practically

do not increase the resistance to air flow compared with smooth walls. If necessary, for example, when dispersing tukov through the soil, the block of 5 outlet pipes 6 with dividers 7 can be removed.

The invention is very simple in construction, gives a high uniformity of the distribution of particles along these wires, and can be used in the seeding of grain and tuk.

0 The simple form of the reflectors allows them to be made by stamping directly on the walls of the socket. In addition, the distributor does not contain bends, which reduces energy loss.

Claims (2)

Invention Formula Grain materials spreader for pneumatic seedlings, including a spraying socket, on the inner surface of which reflectors are arranged in a slaty order, and outlet pipes, characterized in that, in order to reduce the damage to the seeds and increase the distribution of their distribution in the width of the socket , reflectors are made in the form of spherical segments. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 368825, cl. A 01C 15/04, 1970. 2. USSR author's certificate No. 282788 cl. A 01 C 15/04, 1969. f f S