FIELD: agricultural engineering and food-processing industry, in particular, equipment for sorting of cereal mixtures by grain length.
SUBSTANCE: cellular cylinder has oval-shaped cells oriented with their larger axis to cylinder generatrix. Annular guiding rims with inclined side surfaces are extending between cells along larger axis of cells. Angle of inclination of rim side surfaces exceeds angle of friction of cereal mixture components against said surfaces.
EFFECT: improved filling of cells, which is facilitated by employment of guiding rims with inclined side surfaces, and, accordingly, increased efficiency of cellular cylinder.
The present invention relates to machines for sorting grain mixtures along the length of the grains and can be used in agricultural production, milling and grain Elevator and feed mill industry.
Known for this purpose a cylindrical screening  according to GOST 9331-71 the Cylinders of treerow have mesh, made in the plan in the form of a circle, which do not provide one sunken in their grain orientation, and in this regard, and a clear division of their length. When such cylinder is formed a significant area of overlap of the processes of falling short and long beans.
Also known cylinder Trier, the cells of which have the shape of an oval that allows you to more precisely Orient the grain in the cell and eliminate the deficit  (the prototype).
The disadvantage of this cylinder Trier is not a complete filling of the cell components of the grain mixture, due to the chaotic their location relative to the major axis of the cell, which reduces its performance.
The task that needs to be addressed, is to increase the specific productivity of the cylinder Trier due to more completely fill the cell.
The problem is solved by using a cylinder Trier with mesh on the inner surface having the shape of an oval that is located more axis about perpendicular to Azusa cylinder, thus between cells along their major axis are circular guide flange, the angle of the side surfaces of which exceeds the friction angle components of the grain mixture.
Increasing the specific productivity of the cylinder Trier is achieved by orienting the major axis of the particles of the side surfaces of the annular guide flanges along the major axis of the cells and more full filling.
Figures 1 and 2 show a fragment of the sweep wire mesh surface of the cylinder Trier and its cross-section.
Cylinder 1 Trier has on the inner surface of the mesh 2, in terms of representing the shape of an oval that is located more axis perpendicular to the generatrix of the cylinder. Between cells 2 along their major axis are circular guide flange 3, the side surfaces 4 and 5 which are installed at an angle α to the horizon. In this case the angle α angle ϕ friction components of the grain mixture on side surfaces of the ribs. In the cross-section of the flanges may have different shapes - triangle, line segment, rectangle, etc. Cylinder 1 Trier may be made of various materials: metal, rubber, plastics.
Workflow cylinder Trier is as follows.
During the rotation of the cylinder mesh and the flanges are held in the lower part of the under layer of the grain mixture. For accounts the coefficient of friction components of the grain mixture are addicted up on some angle and then slide down the surface of the grain layer back down. Particles between two adjacent flanges, slip on their lateral surfaces in the cells located more axis along the major axis of the cells. The sliding of the particles on the lateral surfaces of the flanges is provided, if the angle α their slope exceeds the angle ϕ friction. This long particles (longer than the distance between adjacent ribs), lying across the ribs do not interfere with the filling of the cells short particles, as is the case in the prototype. They are in the process of working cylinder axial movement of the grain layer are moved to the next row of cells.
As a result, due to the presence of the annular guide flanges, side surfaces of which have an angle of inclination greater than the angle of friction of the components of the grain mixture that improves the filling of the cells and increases the specific capacity of the cylinder.
1. Machinery for post-harvest grain handling / Bisognin, Ipharmacy, Try, Vimalagiri. - M.: Agropromizdat, 1987. Pp.61-66.
2. Copyright certificate № 188783 the USSR, IPC B 07 B 13/02. Drum Trier / AA Rassadin. No. 944390/30-15; Claimed 18.02.1965; Published 01.11.1966. Bulletin # 22 - the prototype.
Cylinder Trier with mesh on the inner surface having the shape of an oval that is located more axis perpendicular to the generatrix of the cylinder, characterized in that between the cells along their greatly the y-axis are circular guide flange, the angle of the side surfaces of which exceeds the friction angle components of the grain mixture.
FIELD: agricultural engineering, in particular, grain cleaning and sorting equipment.
SUBSTANCE: grain cleaning machine has air system and shake mill arranged above air system. Air system has separating chamber, settling chamber, and pneumatic separating channel having single partition wall with separating chamber. Air system has fan adapted for creating of air flow and equipped with air flow regulator. Basic material is introduced and fractions are discharged from air system by means of grain material inlet device and fraction discharge device. Discharge device of separating chamber has receiver. Change-over mechanism for changing-over of operating modes is mounted on single wall of adjacent separating chamber and pneumatic separating channel. Change-over mechanism allows grain cleaning machine to operate with the use of two technologies.
EFFECT: increased efficiency and wider operational capabilities.
FIELD: agriculture, in particular, cleaning and sorting of sunflower seeds.
SUBSTANCE: method involves primary cleaning of sunflower seeds followed by size separation of seeds into fractions; sorting out individually each fraction by density on pneumatic sorting table for separating seeds from light fraction; providing secondary cleaning of main seed yield and sorting it out by density for separating main seed yield from heavy fraction on other pneumatic sorting table, with white mold sclerotia being separated in conjunction with heavy fraction. Sunflower seed line has primary seed cleaning machine and machine for size separation of seeds into fractions. Pneumatic sorting table for separation of light fraction and secondary cleaning machine are positioned downstream of machine for separation of seeds into fractions. Other pneumatic sorting table is positioned downstream of secondary cleaning machine and adapted for separating heavy fraction and white mold sclerotia. Said method and line allow optimal operating mode to be selected for secondary cleaning machine and second pneumatic sorting table.
EFFECT: improved quality of seed material.
3 cl, 1 dwg, 1 tbl, 1 ex
FIELD: agriculture, in particular, postharvest treatment of castor bean seeds.
SUBSTANCE: method involves charging castor bean heap into containers, followed by drying; subjecting castor bean heap to shelling by directing thereof through pairs of roll-deck type working tools and simultaneously cleaning from fruit coat by means of air flow; performing shelling operation in "mild" operating mode, with roll-to-roll rotational velocity increasing in the course of shelling operation; separating castor bean heap into standard seeds and non-standard seeds on seed cleaning machine; subjecting non-standard seeds produced after separating of caster bean heap to additional shelling in "hard" operating mode and simultaneously cleaning with air flow. Line for postharvest treatment of castor beans comprises drying apparatus and main shelling apparatus with air column and pairs of roll-deck type working tools. During shelling procedure, fruit coats are separated by means of air column. Shelling products are delivered into containers and directed onto seed cleaning machine equipped with screens. After passage through seed cleaning machine, seeds are delivered into container and further directed for storage. Another shelling apparatus is located downstream of seed cleaning machine and provided with air column and pairs of roll-deck type working tools for additional threshing of non-standard seeds, with all of said rolls operating at equal rotational velocity. During additional shelling, shell is separated by means of air column while seeds are accumulated in container.
EFFECT: increased yield of seed material owing to reduced damage to seeds and additional threshing of non-standard seeds separated on seed cleaning machine.
4 cl, 1 dwg, 3 tbl, 1 ex
FIELD: agriculture; methods of sunflower seeds cleaning and the production line for its realization.
SUBSTANCE: the invention is intended for realization in agriculture. The method provides for feeding of sunflower seeds in canisters and their preliminary cleaning with separation into fractions. Then each fraction of seeds is separated by density on a pneumatic sorting table and conduct the further primary seed cleaning of each fraction of seeds with the subsequent storing separately of each fraction in containers. The production line for sunflower seeds cleaning includes a conveying device with an elevator and a supplied with the sieves machine of the preliminary cleaning of the seeds. Sieves are supplied with outputs for each fraction of seeds. The pneumatic sorting table is mounted after a precleaner and in front of the primary cleaner. For installation of the containers above the machines of both preliminary and primary cleaning and over the pneumatic sorting table there are slewing trestle bridges. The inventions allow to increase outcome and quality of the seed material and to diminish expenditures on sunflower seeds cleaning.
EFFECT: the inventions allow to increase outcome and quality of the seed material and to diminish expenditures on sunflower seeds cleaning.
2 cl, 1 dwg, 2 tbl, 1 ex
FIELD: agricultural engineering, in particular, equipment for separating grain from grain heap in combines.
SUBSTANCE: grain cleaning installation has fan and shake mills. Fan wheels are positioned in two housings. Each of said housings accommodates two working wheels mounted on single shaft, and radial partitions. Separating shield is provided between housings. Fan housing has two discharge branch pipes defined by shells. Air flow rate in shake mills of grain cleaning installation of combine is adjusted by changing position of radial partitions. Grain cleaning installation is effectively used under different harvesting conditions.
EFFECT: improved quality of grain separation.
FIELD: agricultural engineering, in particular, grain harvesting equipment.
SUBSTANCE: self-propelled grain combine comprises displacement mechanism, frame and working tools for receiving, transporting, processing and discharging of processed mass, said working tools being equipped with drives. Each of working tools has at least one threshing or feeding drum and two rotating separating rotors arranged rearward of said drum and providing axial direction of displacement of processed mass. Separating rotors are furnished with transportation means and are incorporated within bodies equipped with lateral sheets, whose front receiving parts are made in plan converging to respective separating rotor for defining receptacle zone narrowing in direction of transportation relative to rotor body. Portion of receiving zone is embraced in active manner by transportation means.
EFFECT: increased efficiency and provision for optimal conditions for receiving of processed mass by separating rotors.
8 cl, 5 dwg
FIELD: agricultural engineering.
SUBSTANCE: proposed self-propelled grain combine harvester includes front reaper and inclined conveyer located behind it. Mass treated by inclined conveyer is fed to intermediate threshing apparatus at tangential direction of mass being treated which is then divided into two flows. Both flows are directed to axial-type separating apparatus consisting of two housings with rotors mounted inside them. Each housing is asymmetric towards receiving end for smooth and unimpeded delivery of mass to separating apparatus.
EFFECT: enhanced efficiency.
17 cl, 5 dwg
FIELD: agricultural engineering, in particular, equipment for distribution of grain heap among working tools of grain cleaning combines.
SUBSTANCE: distributor has feeding branch pipe and guiding cone arranged at base of branch pipe. Plates defining separating surface are provided on cone base. Separating surface of plates is made in the form of truncated cone with plate inclination angle of 15-20°. Plate thickness to plate width ratio is 0.03-0.05. Fraction discharge trays are disposed at truncated cone base. Grain heap is fed from feeding branch pipe onto guiding cone and is further delivered by gravity onto separating surface of truncated cone. Small-sized fraction passes through plates of separating surface of truncated cone and large-sized fraction is discharged from separating surface. Fractions distributed among trays are delivered for further processing.
EFFECT: reduced grain loss by decreased delivery of grain into tails due to uniform distribution of grain heap over separating surface.
FIELD: agricultural engineering, in particular, equipment used in sorting machines.
SUBSTANCE: flat sieve has rows of apertures arranged in parallel with one another, with apertures of subsequent row being arranged in offset relation with respect to apertures of previous row and apertures of subsequent row being arranged opposite connecting web of apertures of previous row. In case apertures are formed elongated, their longitudinal axes are extending perpendicular to direction of advancement of grain. Borders of left-handed and right-handed areas of sieve are engageable with aperture edges to be gripped in sieve shoe casing.
EFFECT: increased efficiency by full utilization of effective section of sieve apertures.
FIELD: agricultural engineering.
SUBSTANCE: proposed device includes delivery board and inlet hole of aspiration channel arranged at end zone of board. Channel is provided with deposit chamber with automatically opening valve located over front part of stacker bottom. Suction fan with discharge nozzle pointed into stacker is arranged in rear part of aspiration channel. Bar screen tilted to side of tailings auger is arranged under delivery board. Bars are made with cross section in form of equilateral triangle. With tailings slipping off delivery boards in end zone, light impurities sucked through inlet hole into aspiration channel settle in deposit chamber. Impurities accumulated in chamber are discharge through valve into stacker. Grain and tailings drop onto bar screen. Grain passes between bars and is delivered by grain auger into hopper. Tailings slide along screen and are delivered by tailings auger into return thresher.
EFFECT: improved separations of grain in grain harvester.
2 cl, 3 ex, 2 tbl, 4 dwg
FIELD: agricultural engineering.
SUBSTANCE: invention is designed for adjusting size of screen cells in grain harvesters. Proposed adjuster is installed in harvester tailer unit and it executes vibratory motions together with screen. Sizes of screen cells are adjusted by electromechanical drive power action of electromechanical drive is directed at angle to direction of vibratory motions of screen. In process of adjusting, size of cell is changed in one direction and control signal is generated to set required size of cell. Actual size of cell is determined automatically by measured value of adjustment.
EFFECT: high accuracy of result at repeated measurements.
9 cl, 5 dwg