SU57676A1 - Grain cleaning machine - Google Patents

Description

A grain cleaning machine according to the invention relates to the discharge of known machines of the same purpose, equipped with a number of sieves made in the form of endless ribbons, between the top and bottom branches of which are pitched boards and a grain grinder for feeding grain. It is intended for cleaning the grain after the combine in order to bring the quality of the grain to the condition of the seed. A distinctive feature of the machine is that, in order to blow air into the grain in the channel leading the grain from the grain console to the sieves, side suction pipelines leading to the fan are connected to this channel, in the walls of the specified channel are provided with holes with grills located against the side suction of their pipelines.

The drawing shows a longitudinal section of an exemplary form of the implementation of a grain cleaning machine according to the invention.

The proposed grain cleaning machine consists of a bucket dosing grain for grain /, fortified above the grain console 2, a known device and an action. The inclined channel of the grain console 2 is equipped with several, for example, three side air suction lines from it 4 connected to the suction inlet of the fan //. The wall of the channel of the grain console against the pipelines 4 is provided with openings according to the number of pipelines 4 with a lattice of 3 intended for the passage of air in order to blow the grain moving upwards along the channel of the grain panel. The output part of the channel of the grain panel is bent downwards and is equipped with a dividing shield dividing the material being cleaned into two parallel jets. For cleaning each jet of material, a spike sieve 5 is carried out in a transverse oscillatory motion, as well as a number of sieves 6-10 made in the form of moving endless ribbons to which, in addition to translational motion, transverse reciprocating movement can be communicated in one way or another. . Each of the 6-10 sieves, supported by rollers, is enclosed in I corresponding to the frame, suspended in a known manner on six Culson springs, not indicated on the drawing, to the frame of the machine. Inclined fixed pitched planks are located between the upper and lower branches of the strips forming the sieves 6-10. To divert the impurities of the grain from the spike sieves 5, the chutes 12 are designed. The sieves 6 are designed to separate large impurities from the chutes 14. "A chute board 16 with a chute 17 is passed through and ejected. 17. A curved shield 18 is used to remove the grain from the sowing sieve 7 to the beginning of the trowel puppet sieve 8 8. The doll sieve 8 is provided with round holes that sort the grain not as usual, i.e. Rine and along the length, due to interaction of grains with excess shield 19 positioned above the upper branch of the sieve 8 and prevents favoring grains occupy a vertical position. To adjust the distance between the shield 19 and the puppet screen 8, suitable micrometric screws, not indicated in the drawing, are intended. Doll sieve

8 is designed to pass fine impurities falling onto its pitched board 20, provided with diversion chute 21, and to transfer the grain to the curved shield 22, which guides the grain to the beginning of the alluvial sieve 9, also provided with round holes. Above the upper branch of the "Osy sieve 9" is the restrictive movable shield 23, which prevents the grain from occupying a vertical position. For drainage from the "Oily sieve"

9 long impurities are intended for chute 24, and for the supply of grain passing through the openings of sieve 9 at the beginning of the sorting sieve 10, a sloping board 25 with chute is intended.

The sorting screen 10 is provided with rectangular openings and is intended to separate the grain in thickness into two grades, of which the first is removed from the sieve 10 by the chute 26 and the second by the chute 28 of the pitched board 27.

To divert the shriveled grain from the upper lateral pipeline 4 of the channel of the grain console 2, the chute 30 is intended, reinforced from below to the sieve 29, set obliquely across this pipeline. The effect of the grain cleaning machine constituting the subject matter of the invention is that even before the grain is cleaned and sorted by sieves 6-10, it is blown with air passing through the grids 3 in the channel of the grain console 2. As a result, the film is blown down the bottom of the pipelines 4 and light impurities, along the middle of pipelines 4, straw straws of grain and part of weeds are carried away, and along the top of pipelines 4, a puny grain is carried away to the outside by a drain 30. Impurities passing through the lower and middle pipelines 4, through a ventilator p // are sent to a dust collector, and full grain is sent to 6-10 sieves for final cleaning and sorting.

The subject matter of the invention.

A grain cleaning machine using a grain panel to feed grain into the channel, characterized by the fact that side suction pipes 4 are connected to the grain panel channel, leading to the fan 11, in order to blow grain into the channel with air entering the channel through the grids 5 in the walls channel located opposite to pipelines 4.

E to author's certificate by Ya. N. Gudkov

D1 57676