SU1743428A1 - Pneumatic seeder - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular, to machines for fertilizing. The aim of the invention is to improve the uniform distribution of the applied material and the stability of the sowing apparatus. The pneumatic crop contains a hopper 1 with a feeder 2, divided by longitudinal partitions 4 of the tube guide 3 with outlet openings located across its bottom, and the pipelines 6 installed across the longitudinal axis of the bunker 1, the inner ends of which are connected to the tube link 3 and a source of compressed air . The cross-sectional area FU of the inlet air intake ports 8 of the pipelines is determined by the expression: Fc Fo + (0.131T + 0.0061) Х1СГ where 1Т is the length of the pipeline; F0 - the minimum cross-sectional area of the air inlet opening is (O, 15-0.20) FT, where FT is the cross-sectional area of the pipeline. 2 Il. (L

Description

The invention relates to agricultural machinery, in particular to fertilizer.

A pneumatic plant is known that contains a hopper with a feeder, divided by longitudinal partitions of a tube guide with outlet openings located along the diagonal of its bottom, and material-wires installed transversely to the longitudinal axis of the bunker, the inner ends of which are connected to the tube guide and a source of compressed air.

The disadvantage of this version of the sowing apparatus is the equality of the cross-sectional areas of the inlet air inlets

round pipelines that, when making higher doses of material through pipelines of various lengths due to their unequal resistance, which leads to the occurrence and blockage of pipelines of greater length. In this case, the uneven distribution of the material increases dramatically, the stability of the spreading process is disturbed, the width of the machine is reduced,

The purpose of the invention is to improve the uniformity of distribution of the applied material and the stability of the seeding unit.

This goal is achieved by the fact that the cross-sectional area of the air inlet openings

|

J

with

four

Yu

00

piping is determined by the length of the piping by the following expression:

 + (0.131t + 0, OOFF-1SG4, (1)

where 1T is the length of the pipeline, m |

FQ - the minimum cross-sectional area of the inlet air inlet of the circular duct is (0.15-0.20) FT;

FT is the cross-sectional area of the pipeline.

Figure 1 shows the sowing apparatus, a side view in FIG. 2, the same, view1 above.

The proposed pneumatic crop contains a hopper 1 with a feeder 2, a tuft guide 3, divided by longitudinal partitions k and consisting of sections 5 with material lines 6 corresponding to their number 6. The material lines 6 are located across the longitudinal axis of the bunker and their inner ends are connected to the toner head 3 through the inlets 7 and with a compressed air source (not shown) through the intake air inlets 8, the cross-sectional area of the intake air inlets being determined by the expression (l).

The principle of operation of the proposed sowing apparatus is that the introduced material supplied by the feeder from bunker 1 enters the tube guide 3, where it is divided into separate streams by longitudinal partitions k and sent to material pipes 6 across the longitudinal axis of the bunker, along which flow from a source of compressed air7 28

The spirit material is transported to the soil application sites.

Due to the change in the cross-sectional area Fc of the air intakes of the pipelines, depending on the change in their parameters of the 1Т1 FT, the same conditions are created for the acceleration and transportation of the granules Q of the applied material, which improves the quality and stability of the sowing process. m at that

Claims (1)

while existing devices, such as PS-21.6, give non-uniformity over 50. Claims A pneumatic crop containing a hopper with a feeder, divided by longitudinal partitions of a cuff with outlet openings and located across the longitudinal hopper axes of the material lines, the internal ends of which are connected to the pump-guide and a source of compressed air, characterized in that, in order to increase the uniformity of the applied material and the stability of the sowing unit, the cross-sectional area Fc of the inlet air inlets of the pipelines is determined by Fc FQ + (0,13fT +0.0061) - 1СГ4, where tT is the length of the pipeline; F0 - the minimum cross-sectional area of the inlet air inlet of the circular pipe is equal to (0.15-0.20) FT, FT is the cross-sectional area of the pipeline. 2 /. one HS Tj Gr hh hh /