RU222604U1 - SEED FLOW EVALUER - Google Patents

Abstract

The utility model relates to agricultural engineering, in particular to the designs of metering devices for seeders for sowing row crops. The seed flow equalizer consists of a housing and a bladed rotor with the ability to rotate in the housing. The rotor is made in the form of a cylindrical disk with grooves evenly spaced along the circumference along the generatrices, and the dimensions of the grooves length a × width b × depth c relative to the length l of large-seeded crops are respectively equal to 2l × 1l × 1.5l. The proposed design of the leveler ensures uniform individual supply of seeds.

Description

The utility model relates to agricultural engineering, in particular to the designs of metering devices for seeders for sowing row crops.

As a prototype, a flow equalizer was adopted as part of a dosing device for a wide-crop row crop seeder with pneumatic transportation of seeds (patent for invention No. 2779310 RU, published 02/09/2022), which includes a housing and a bladed rotor with the ability to rotate in the housing.

The disadvantage of this leveler design is the uneven supply of seeds to the coulter when two or more seeds enter the space between the rotor blades.

The technical task of the utility model is to ensure uniform individual supply of seeds.

The technical problem is achieved by the fact that in a flow equalizer consisting of a housing and a bladed rotor with the possibility of rotation in the housing, the rotor is made in the form of a cylindrical disk with grooves evenly spaced along the circumference along the generatrices, and the dimensions of the grooves are length a × width b × depth c relative to length l of large-seeded crops are respectively equal to 2l × 1l × 1.5l.

In fig. 1 shows a general diagram of the proposed equalizer design;

in fig. 2 - when the seed is on the blind surface of the rotor;

in fig. 3 - at the moment of hitting the groove;

in fig. 4 - in an intermediate position;

in fig. 5 - at the time of exit.

The proposed design of the equalizer includes a housing 1 with an inlet pipe 3 and an outlet pipe 4. A rotor 2 is installed inside the housing cavity with the possibility of rotation. The rotor 2 is made in the form of a cylindrical disk with grooves evenly spaced along the circumference along the generatrices. The dimensions of the grooves length a × width b× depth c relative to the length l of large-seeded crops are 2l × 1l × 1.5l. The size l of the sown agricultural crop can be taken equal to the maximum length of a large-seeded crop, for example corn, l = 8 mm.

The proposed flow equalizer design works as follows.

The seed flow equalizer is installed directly above the coulter. Seeds come from the seeder's sowing apparatus into the inlet pipe 3. Rotor 2 is driven by a drive mechanism from the seeder's sowing apparatus (not shown). The rotational speed of rotor 2 is adjusted depending on the design and operating parameters of the seeder's sowing apparatus through a drive mechanism from the seeder's sowing apparatus. Before the seed enters the groove from the inlet pipe 3, the seed is on the blind surface of the rotor 2 (Fig. 2). As rotor 2 rotates, the seed falls into the groove (Fig. 3). In the groove of the rotating rotor 2, the seed moves to the outlet pipe 4 and is fed through the seed tube into the seeder coulter.

The proposed design of the leveler ensures uniform individual supply of seeds.

Claims (1)

A seed flow equalizer consisting of a housing and a bladed rotor with the possibility of rotation in the housing, characterized in that the rotor is made in the form of a cylindrical disk with grooves evenly spaced along the circumference along the generatrices, and the dimensions of the grooves are length a × width b × depth c relative to the length l of large seeds crops are respectively equal to 2l × 1l × 1.5l.