SU882667A1 - Cylindrical pocket-type grain cleaner - Google Patents

Description

(54) CYLINDRICAL TRIER BY EL L. SOSNOVSKY

one .; The invention relates to devices for separating grain mixtures along the length of the particles and can be used for cleaning food and seed grains in the elevator and milling industries.

The known Trier includes a rigid cellular cylinder, a loading device, a brush reflector, mechanisms for pushing short particles out of the cells in the area of their separation, receiving devices I..d

The closest in technical essence and the achieved result to the invention is a trier comprising a perforated cellular cylinder, a brush reflector, a loading device, a receiver of a short fraction, attached to a tee collection for cleaning the cellular surface from a short fraction, made in the form of holes cylinders of rod pushers interacting with a pressure roller, at the ends of which external and internal constraints J2J are fixed.

A disadvantage of the known device is the low reliability of operation

for cleaning the cellular surface from the short fracc and, since in the trilers the diameter of the cell along the circumference of its edges exceeds the internal diameter of the cell bottom and when the device pushers are radially moved, there is an increase in the gap between the edge of the inner limit washer and the edge of the cell, as a result of which the gap of the particle particles and its pinching, with the possible jamming of the pushers in the cell. In the known device, during operation of the pusher, dust, fine particles of straw, etc. can get into the hole of the bottom of the cell from the cell itself, which can lead to jamming of the pusher in the cylinder hole. The pushers stuck in the cylinder bores and in the cells themselves cannot return to their initial position when they leave the zone of influence on them of the pressure roller, which reduces the number of working cells of the triemer and its performance.

The purpose of the invention is to increase the reliability of work.

Claims (2)

The goal is achieved by the fact that the Trier is equipped with a mechanism for returning the rod pushers to the initial position inside the cylinder, located behind the receiver of the short fraction during rotation of the cylinder and the trier cells are located on the internal limiters of the pushers. The mechanism for returning the rod followers is made in the form of a pressure roller. , FIG. 1 shows the proposed Trier, a general view; in fig. 2 - area of the short fraction release zone; in fig. 3 - the zone of operation of the mechanism for returning the pushers to the initial position. Trier contains a rigid perforated cylinder 1 mounted rotatably on support rollers 2, in the openings of which pushers 3 are freely installed. On the outer side of cylinder 1 a pressure roller 4 is installed, which interacts with the pushers 3 in the zone of release of the short fraction. The pushers 3 at the ends contain external limiters 5 and internal limiters 6, on which are placed the cells of the 7 triplets. Inside the cylinder 1, there is a loading device, a brush reflector 8, a short fraction receiver 9, as well as a mechanism for returning the pushers 3 to the initial position, made in the form of a pressure roller 10 installed beyond the selection zone of the short fraction during the rotation of the cylinder 1 and interacting with the internal cellular limiting device mi 6 pushers 3. Trier works as follows. When the cylinder 1 rotates, the pushers 3 with the cells 7 placed on them under the action of inertial forces move radially from the center of rotation of the cylinder 1 until the internal stops 6 contact the inner surface of the cylinder 1, while the external stops 5 move away from the outer surface of the cylinder 1 a flow equal to the stroke of the pusher 3. The grain mixture is fed to the inner cellular surface of cylinder 1 formed by the cells 7 of the pushers 3. Short particles are completely placed in the cells 7, and long particles you blunt their ends over the edges of the cells 7. Brush reflector 8 sweeps long particles from the cellular surface, short particles pass under the brushes of the reflector 8. In the zone of selection of short particles under the action of the pressure roller 4 pushers 3 move radially to the center of rotation of the cylinder L Simultaneously with pushers 3 radially displaces the cells 7 placed on them, which transmit a shock pulse to the short particles in them. Under the impact of the shock pulse, the trajectory of the movement of short particles, which fly out of the cells 7 and are caught by the receiver 9, is removed. Out of the pressure roller 4, the pushers 3 again under the action of inertial forces move radially from the center of rotation of the cylinder 1 to the initial position wherein the internal stops 6 with the cells 7 rest on the inner surface of the cylinder 1. The tappets 3 wedged in the holes of the cylinder 1 fall under the influence of the mechanism of their return to the initial position e, constructed as a pressure roller 10. The roller 10 interacting with limiters 6, the pushers 3 move in the radial direction from the center of rotation of the cylinder I and sets them to their original position. The invention will eliminate the jamming of the pushers, since the placement of the cells on the internal limiters of the pushers eliminates the movement of the elements of the pushers relative to the Triera cells and isolates the cavity of the cells from the holes of the perforated cylinder; to eliminate the formation of inoperative cells due to jamming of the pushers in the cylinder bores, since the use of the pusher return mechanism in the proposed trier provides for the return of all jammed pushers to the initial position, which increases the reliability of the device for cleaning the cellular surface from the short fraction. Claim 1.Cylindrical trier, including perforated cellular cylinder, brush reflector, loading device, short fraction receiver, fixture for cleaning the cellular surface from the short fraction, made in the form of core pushers placed in openings of cells with external and internal constraints and a pressure roller interacting with the pushers, characterized in that, in order to increase the reliability of the Trier operation, the latter is provided with a return mechanism installed inside the cylinder The rods of the pushers are reset to the initial position, located behind the receiver of the short fraction in the direction of rotation of the cylinder, and the Trier cells are located on the internal limiters of the pushers. 2.Trier according to claim 1, characterized in that the mechanism for returning the rod followers is made in the form of a pressure roller. Sources of information taken into account in the examination 1. USSR author's certificate number 365176, cl. B 07 B 13/02, 1971. 2. USSR author's certificate of state application No. 2554444 / 29-03, cl. B 07 B 13/02, 1978. Uh