RU1819508C - Seed scattering sowing machine - Google Patents

Description

The invention relates to agricultural machinery, in particular to sowing machines.

The purpose of the invention is to increase the uniformity of sowing and seed distribution.

In FIG. 1 shows a schematic diagram of a drill for spread sowing: FIG. 2 is a section AA in FIG. 1; in FIG. 3 is a front view of a pitched board with combs.

The spread sowing village consists of a frame 1 supported by supporting travel wheels 2, a grain hopper 3. A drive mechanism 4 connects the travel wheels 2 to sowing units made in the form of upper 5 and lower 6 conveyors. The upper conveyor 5 is offset relative to the lower conveyor (3 toward the seed sowing, and its lower point is located below the seed gathering point. The longitudinal axis of the upper conveyor 5 is located at a sharp angle to the longitudinal axis of the lower conveyor 6 so that the contact of both conveyors occurs; with with a variable angle of convergence of the branches of the transports. A guide made in the form of a pitched board 7 equipped with combs 8 with the same distance between them, which divide the pitched board 7 into equal sections The ridges 8 are made in a symmetrically wave-like shape .. The ramp board 7 is spring loaded relative to the frame 1 with the possibility of movement in the direction of movement of the village using the spring 9. The flap 10 prevents the seeds from sprinkling with soil. Above the belt of the lower conveyor 6, in the tape space, is installed a shutter 11 with cutouts fixed in the grooves of the hopper 3. The grooves 12 of the belt of the upper conveyor 5 are located at an angle 1 less than the angle of friction of the seeds to the direction of movement of the village.

Selka works as follows.

Both belt conveyors are driven, while the belt of the upper conveyor 5, passing through the seed layer in the hopper 3, agitates the seeds and carries them towards the lower belt conveyor 6. The grooves 12 on the belt of the upper conveyor 5 provide continuous dosing of the seed onto the belt of the lower conveyor 6. The lower belt, moving from the front edge of the hopper 3 to the rear, feeds the seeds that have fallen on it into the zone of convergence of the belts, to the cut-out of the shutter 11, which restricts the flow of seeds into the inter-tape space. Seeds passing through the cutouts in the shutter 11 are carried away by the tape of the upper conveyor 5 and, using the grooves 12, are moved and redistributed on the lower tape along the width of the conveyor into a uniform seed layer. Carrying the seeds down on the belt of the lower conveyor 6 and pushing them out of the inter-tape space, the displaced branch of the upper conveyor 5 directs the evenly distributed seed flow to the guide along which the seeds slide down between the combs in

0 soil. Since the pitched board 7 is made with the possibility of movement in the direction of movement of the village, in the case of wet seeds and the formation of sticking between the pitched board 7

5 and the flap 10, the ramp board 7 under pressure is moved in the direction of movement of the village of overcoming the force of the spring 9. Due to the increase in the throughput section, the jam is eliminated, after which the ramp 0 on the board 7 is returned to its original position by the force of the spring 9. As a result, a continuous flow of seeds into the soil is achieved, and missed sowing is excluded, which increases the uniformity of sowing. In addition, when seeds fall on the ramp board 7, the latter vibrate to some extent due to the spring 9, which eliminates the sticking of wet seeds on this board and reduces their loadability

0 and, thereby, the uniformity of the sliding of seeds between the combs 8 is increased.

The execution of combs 8 in a symmetrically wave-like shape increases the uniformity of seed distribution on the ramp 5, 7. This is achieved by the fact that the combs 8 in a symmetrically wave-like shape ensure that the seeds slide between them at the same speed, that is, the speed of movement of the seeds at the beginning and end of the ramp

0 boards 7 will be approximately equal, because taking into account: raising and lowering the wave trajectory ensures the movement of seeds without acceleration, that is, they control the speed of movement of seeds. As a result of the transition

5 seeds from a pitched board 7 on a horizontal. the seed guide section will not be loaded in this section, which increases the uniformity of seed distribution.

Thus, the proposed device distributes seeds more evenly and increases the uniformity of sowing. The formula and goiter of the Selka petal for spreading seeding of seeds containing a frame, running wheels, a seed hopper, a metering device, a guide, in the form of a pitched board and a sowing device, made in the form of a lower and displaced upper conveyor belts relative to it, and the tape the upper conveyor has grooves located at an angle to the direction of its movement, less than the angle of friction of the seeds, and its longitudinal axis is located at an acute angle to the longitudinal axis of the lower conveyor, characterized in that, in order to increase the equal polarity seeding distribution and seed comb pitched dossm formed symmetrically undulating shape, with sloped board is spring-loaded relative to the frame to be movable in the direction of movement se LCI.

Figure 2

fm.Z

7.