SU988218A1 - Sower - Google Patents

Description

(54) SEEDER

one

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular, precision sowing seeds for sowing of lost crops, mainly sugar beet and other industrial crops.

The known seed consisting of a seed hopper with a base having an opening in communication with this wire, located in its lower part with a rotating disk with slots, a compressed air supply system with a distributor and an inlet opening 1.

A disadvantage of this device is that unloading the cells of the hole with their free fall on the ground does not ensure fixation. At all at the place of fall, their good contact with the soil and equal intervals between the seeds.

Closest to the proposed technical essence and the achieved result is a spike, which includes a seed hopper mounted on the frame with a base having an opening coaxially with this wire, equipped with a means of reducing the air at the outlet of the wire, located above the base of a rotating cell disk feeder

compressed air with distributor and ssh, nickname ..

The said device allows one seed to be taken from the bunker and fed to the unloading zone, where the speed is communicated to it by means of a compressed air pulse, which is necessary for penetration into the groove formed by the coulter. At the same time, the flow rate of air, which accelerates this seed at the moment of its release from the seed wire, is reduced by withdrawing a portion of the seed into the side openings of the horizontal tube (means for reducing the air velocity) 2.

A disadvantage of the known device is the low reliability of seed fixation under varying soil conditions due to soil explosion at the place of seed introduction. The air flow moving behind the seed forms, upon meeting with the reflected air, a "whirlwind", which carries away this seed, preventing its penetration into the soil. This airy yihr destroys a prepared seedbed, often with seed already recorded in it.

The aim of the invention is to increase the reliability of the process of fixing seeds in the soil by increasing the efficiency of removing the air flow from the bridge of contact of the seeds with the soil.

The goal is achieved by the fact that diametrically opposed walls of this wire have transverse slots, and the means of reducing the air velocity is made in the form of perforations in the walls of this wire and a valve installed at its outlet, which is kinematically connected to an electrohydroiscopic chamber whose contacts are included in a circuit photocell with a voltage, and the photocell is installed in one of the transverse slots of the walls of this wire, and in its opposite slot is installed source Uk light.

FIG. 1 depicts a plant; in FIG. 2

This wire with a means of reducing air exhaust.

The crop includes a hopper 2 mounted on the frame 1 with the base 3 adjoining it, and a hole 4 coaxial with the seven wire 5. The rotating disk 6 with the cells 7 around the base is located around the circumference and the activator 8 is in the center for acceleration of seeds, Ce The filter is equipped with a compressed air supply device 9 with a distributor 10 m, which ensures the blowing of seed from the disk compartment 7 at the time of coaxial alignment of the cell and the opening 4 of the base. To remove seeds from the holes, a reflector 11 is used. A vomer 12 is installed on the seed frame to form a seed bed.

In the lower part of the wire 5, there is a device for reducing the air velocity, made in the form of perforations 13 in the wall 14 of the wire and the valve 15, kinematically connected with the elastic diaphragm 16 of the electro-hydroiscope chamber 17, contacts 18 of which are included in the photocell 19 with the voltage amplifier 20 .

The photocell 19 and the light source 21 are mounted on diametrically opposite walls of this wire in transverse slots x 22 walls.

The distributor 10 is an air duct which, at the point of contact with the disc, has a sealing washer, worn out in the form of a cylinder with an opening along the axis for the passage of air supplied to this wire in a pulsed manner.

Compressed air pulls the washer disk, providing the necessary sealing.

The required number of sowing units in the form of disks 6 and openers 12 are installed on the frame of the crop.

Selka works as follows.

When the disk 6 rotates, the cells 7 are filled with seeds from the hopper 2 and are fed to the zone of action of the distributor 10. The activator 8, which is rigidly fixed on the disk, promotes the filling of the disk cells without gaps due to messages to the seed speeds close to the speed of the cells. Reflector 11 extra seeds It ensures that only one seed is present in each cell. The output end of the seed wire is closed by the valve 15, and the air moving in front of the seed goes into the atmosphere through the side perforation 13. The sem, passing between the light source 21 and the photocell 19, darkens the photocell. The pulse generated through the amplifier 20 serves to form between the contacts 18

The electro-spark chamber 17 sparks causing the elastic diaphragm 16 to move and the valve 15 associated with it. The valve opens, skipping this, and then closes, behind the seed, the air flow that enters the atmosphere through perforations.

When the seedling moves, the valet 12 forms a seed bed, opening a moist soil layer in front of this wire and backfilling the seeds after sowing.

The proposed seed improves the reliability of seed fixation in the soil (guaranteed seizure of seeds in the furrow), i.e., the accuracy of seed placement by 10-20% under different soil conditions. This leads to a reduction in seeding rates

5 to obtain seedlings of optimum density, reducing the cost of its adjustment and ensuring an increase in the yield of agricultural crops.

Claims (2)

1. Patent of Denmark No. 95800, cl. 45 B 7/04, 1963. 2. USSR author's certificate in application number 235088 / 30-15, class A 01 C 7/04, 1976 (prototype).