RU2409015C1 - Device for preplanting cultivation of seeds - Google Patents

Abstract

FIELD: agriculture. ^ SUBSTANCE: invention relates to agricultural machine building, namely to devices for preplanting treatment of seeds of various crops. Device for preplanting treatment of seeds comprises drum of elastic material with discharge windows and limiters of motion, mechanical gear and drive. External driving roller that receives rotation from drive through belt gear, and additional inner support rollers, skirting which side surface of drum forms an S-shaped bend, are installed in upper quarter of drum. ^ EFFECT: application of invention will make it possible to evenly distribute seeds in process of treatment in internal volume of drum and to provide for stationary etching process. ^ 1 dwg

Description

The invention relates to agricultural machinery, and in particular to devices for presowing treatment of seeds of various crops.

A device for presowing treatment, containing a rotating drum made in the form of a truncated cone, on the inner surface of which there is a helical groove with a variable pitch decreasing in the direction of movement of the seeds, a large base of the cone is facing the exit of seeds from the drum [1].

A device for dressing grain containing a drum, a mechanical transmission and a drive [2].

A device for presowing treatment of seeds is also known, including a drum made of an elastic material, a mechanical transmission and a drive [3].

The disadvantage of these devices is that when the drum rotates at a constant angular velocity, the seeds are drawn up due to the friction forces and, having reached a certain angle of rise, roll or fall down, while using the incomplete working volume of the drum and the low intensity of intralayer mixing and, accordingly, the uniformity of applying the pesticide by the thickness of the processed grain mass. In addition, these devices have limited performance, since with increasing rotational speed of the drum, the processed grain is pressed against the inner wall of the drum due to increased centrifugal forces. As a result, the speed of movement along the drum and the intensity of mixing of seeds with a pesticide decreases.

The invention allows to obtain a new technical effect - uniform distribution of seeds during processing along the inner volume of the drum and the stationary process of dressing

This effect is achieved by the fact that an external drive and additional internal support rollers are installed in the upper quarter of the drum, enveloping which the lateral surface of the drum forms an S-shaped bend, and unloading windows are made from the output side and an elastic limiter of the movement of seeds is installed.

Figure 1 shows a device for pre-sowing seed treatment; figure 2 is a transverse section of the drum.

The device for pre-sowing seed treatment contains a drum 1 of elastic material with unloading windows and a motion limiter 2 mounted on support rollers 3, in the upper quarter of which an external drive roller 4 is installed, obtained by rotation from the drive 5 through the belt drive 6, and additional internal support rollers 7, around which the side surface of the drum 1 forms an S-shaped bend.

A device for presowing seed treatment works as follows.

When the rotation of the drum 1, based on the support rollers 3, the drive roller 4, which receives rotation, in turn, from the drive 5 through the belt drive 6, its surface, passing between the drive and the inner rollers 4 and 7, forms in the upper quarter S - shaped bend. Seeds inside the drum 1, having reached a certain angle, roll or fall down, while due to changes in curvature and, accordingly, kinematic regimes, the sector of seed gathering is expanded downward and guaranteed separation from the side surface.

By changing the angle of placement and the diameters of the internal support and external drive rollers 7 and 4, respectively, the most effective mode for various crops is provided. Moving in the direction of exit, the seeds fall into the unloading windows, while the seeds that have not been dropped out are held in place by the movement limiter 2.

Thus, the proposed technical solution makes it possible to ensure uniform distribution of seeds during processing over the internal volume of the drum, as a result of which the quality of their coating with the working fluid increases and the etching process is stationary.

Information sources

1. Device for presowing seed treatment. Copyright certificate SU No. 528899. Publ. 09/25/1976, Bull. Number 35.

2. Klenin N.I. and other agricultural machinery. - M .: Kolos, 1970. - S.172-175.

3. Device for presowing seed treatment. Copyright certificate RU No. 144686. Publ. 05/10/2009, bull. No. 17 (prototype).

Claims (1)

A device for pre-sowing seed treatment, including a drum made of an elastic material, support and drive rollers, characterized in that an external drive and additional internal support rollers are installed in the upper quarter of the drum, enveloping which forms a S-shaped bend around the drum’s side, and made from the exit side unloading windows and installed an elastic limiter of movement of seeds.

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