SU952130A1 - Universal pneumatic sower - Google Patents

Description

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular, to universal pneumatic seed plants for sowing seeds, mineral fertilizers and other bulk materials.

Known sprays with a pneumatic distributor, including a hopper with a metering device, an overpressure source with a pneumatic transport pipe, a device for injecting seed into a pneumatic transport pipe, a distribution head and an additional source of excessive pressure with a pipeline, which serve to disperse the material being sown in the distribution head fl.

The disadvantage of this device is its considerable stratification and power consumption due to the presence of an additional source of excess pressure.

The closest technical solution to the present invention is a universal pneumatic sealer, including a hopper with metering devices, an overpressure source connected to a pneumatic conveying pipeline passing into a vertical

a pipe with a guide and a distributor head and an additional pipeline, as well as a device for introducing seed, in communication with the pneumatic transport pipeline f 2 J,

The disadvantage of this device is that the injection of seed into the pneumatic transport pipe 10 is carried out at a speed opposite to the direction of the air flow rate, and the air flow rate is hundreds of times greater than the seed speed. therefore

15, almost all the energy of the air flow is expended on dispersal of the seed material, and with an increase in the concentration ratio of the seed in the air flow more,

20 than 2.5-2.7 times, blockages of transported seed in the pipeline are observed, which leads to a violation of the technological process of the operation of the seed and its stopping. .

25

The aim of the invention is to increase the reliability of the operation of the crop.

This goal is achieved by the fact that the seed inlet device is made in the form of installed under the bunker and distribution chambers, the receiving chamber is equipped with a funnel, made snail-shaped and connected to an additional pipeline, and the distribution chamber is installed under the receiving chamber pneumotransport pipeline through differential height of the outlet pipes.

At the same time, the pneumatic drive pipe in the place of input of the seed material is made stepwise and the number of steps is equal to the number of outlet pipes. FIG. 1 is a schematic diagram of the proposed universal pneumatic seeding; FIG. 2 shows section A-A in FIG. one.

The universal pneumatic plant includes a hopper 1 with dispensers 2, a source 3 of overpressure connected to a pneumotransport pipeline 4, Transferring into a vertical pipe 5 with a guide 6 and a distributor head 7 and an extrapipe / 1 pipe 8. Below the hopper 1 there is a device for entering the seed The material, which includes the receiving 9 and distribution chambers 10. The receiving chamber 9 is equipped with a funnel 11, is made snail-shaped and connected to an additional pipeline 8. The distribution chamber 10 is installed under the receiving chamber 9 and made cylindrical. The receiving chamber 9 communicates with the pneumotransport pipeline 4 through outlet pipes 12, which are spaced apart along the height of the distribution chamber 10, as well as the pneumatic transport pipeline 4. The pneumatic conveying pipe 4 at the inlet of the seed through the outlet pipes 12 made stepwise. The number of stages corresponds to the number of outlets 12. In the pneumatic transport pipe 4, a device 13 is provided for pressure control.

The universal pneumatic tensioner works in a perceptible way,

The seed from the hopper 1 is dispensed by the dispensers 2 into the funnel 11, from which, under the influence of gravity, enters the upper cochlear-shaped receiving chamber 9, then into the lower cylindrical distribution chamber 10, and is entrained in them by the vortex

air flow in the screw movement and acquiring by the time of entry into the pneumotransport pipeline 4 speed, close in magnitude and direction to the speed of the air flow in the pneumatic transport pipeline 4.

This allows a 2-3 times increase in the concentration of seed in the air flow,

In addition, an increase in the rate of entry of seed in the pneumotransport pipeline excludes the cases of its blockage in the receiving zone of the pipeline, which increases the reliability of the operation of the seed with the distribution device.

Invention Formula

Claims (2)

1.Universal pneumatic forgings, including a hopper with metering devices, an overpressure source connected to a pneumotransport pipeline passing into a vertical pipe with guides and a distributor head and an auxiliary pipeline, as well as a seed inlet device communicating with the pneumotransport pipeline, so that, in order to increase the reliability of the operation of the crop, the device for injecting seed has been made in the form of reception and distribution chambers installed under the bunker, the reception chamber equipped with a funnel, made snail-shaped and connected to an additional pipeline, and the distribution chamber installed under the receiving chamber, made cylindrical and communicated with the pneumatic conveying pipeline by means of spacing of the outlet. 2. Section according to claim 1, characterized in that the pneumatic transport pipeline in the zone of seed input is made stepwise, and the number of stages is equal to the number of outlet pipes. Sources of information taken into account in the examination 1. USSR author's certificate No. 293568, cl. A 01 C 15/04, 1969. 2. USSR author's certificate №493201, cl. A 01 C 15/04, 1973 (prototype),