FIELD: agriculture.
SUBSTANCE: invention relates to agriculture, to devices intended for extraction of grain (seeds) from straw heap. Roller sieve consists of set of rotating cylindrical rollers with offset relative to each other. On adjacent shafts are located rollers of different size by diameter. Shafts with rollers are combined into sections installed alternately by increasing or decreasing size of rollers. Diameters of rollers are selected so that angle between tangent from roller top point small diameter up to upper point of large diameter roller and line horizon was less angle of friction between plant mass and surface rollers. End surface of rollers is corrugated.
EFFECT: reduced loss of grain during processing of grain-and-hay heap.
1 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PNEUMATIC SCREEN SEPARATING DEVICE | 2022 |
|
RU2791974C1 |
| PNEUMATIC CLASSIFIER OF GRAIN-AND-STRAW MIXTURES | 2020 |
|
RU2749701C1 |
| GRASS SEED HEAP SEPARATOR | 1999 |
|
RU2169455C1 |
| BUNKER DEVICE FOR IRRADIATION OF SEEDS OR GRAINS WITH LOW-FREQUENCY ELECTROMAGNETIC RADIATION | 2018 |
|
RU2694310C1 |
| GRAIN COMBINE | 0 |
|
SU1759292A1 |
| STRIPPING HEADER | 2022 |
|
RU2788445C1 |
| GRAIN MIXTURE SEPARATOR | 0 |
|
SU976889A1 |
| GRAIN COMBINE HARVESTER | 0 |
|
SU835340A1 |
| APPARATUS FOR CLEANING GRAIN-STRAW HEAP | 0 |
|
SU937052A1 |
| COMBINE HARVESTER | 2010 |
|
RU2414114C1 |
