SU419267A1 - SCREENING OF THE ANALYZER OF THE DISPENSITY - Google Patents

Description

one

Particulate dispersion analyzer sieves are known, which contain a frame, a sieve with a closed surface, tensioned on screw partitions and encased in a casing with internal screw blades, brushes and a drive.

The purpose of the invention is to capture the efficiency of sifting materials.

To do this, in the proposed sieving screen, the sieve is made in the form of a flat four-sided box, on the shaft of which there is a cam, which interacts with a spring clamp fixed on the frame, and is connected to a Maltese cross drive. Moreover, the drive is made with an additional kinematic chain, which with the help of a connecting rod is connected to a frame that is pivotally suspended on a rocking chair, the latter also being connected to an additional kinematic chain with the help of a connecting rod.

FIG. Figure 1 shows the kinematic scheme of the proposed sieving; in fig. 2 and 3 are transverse and longitudinal sections of the sieve, respectively.

The dispersion analyzer sieving contains a casing 1 surrounding a flat four-sided sieve 2 for moving fines, screw blades 3, screw partitions 4 for creating a screen covering frame and moving the material along it, wall 5 for

separation of fractions, shaft b for attaching the sieve on a rocking suspension and transmitting rotational movement to it, cam 7 for fixing the position of the sieve relative to the horizontal axis, cam 8 for rotating the sieve around the same axis, finger 9 for transmitting the movement to cam 8, gears 10 and I for turning finger 9, maltese cross 12 and gear wheel 13 for periodic

Maltese cross, gears 14 for transmitting the rotation of gear 13 from the electric motor 15, gears from 16, 17 and 18 for transmitting the rotation to the crank 19, two connecting rods 20, spring 21 for pressing

roller clamp roller 7, frame sling 23 for sling 2, tie-rods 24 for fastening screw partition 4 to casing 1, rocking 25, product maker 26 for feeding the raw material into the sieve and creating a support for

it, supports 27 for restricting the movement of counterweights 28, levers 29 for supplying and discharging the cleaning brushes 30, shock absorbers 31 for restricting the movement of brushes 30.

The source material enters the internal cavity of the sieve 2, which is brought into oscillatory motion by a crank drive mechanism 19 and 20 from the engine 15, through gears 16, 17.

and 18, frame 23 and rocking chair 25.

The sieve is fixed relative to the frame 23 by a roller clamp 22, which is pressed and the gun 21 to the cam 7. For a periodic sieve reversal, the sieve contains a Maltese mechanism, which drives the gears of the gear wheels 18, 14 and the gear wheel 13 with a finger that rotates the Maltese cross 12 at 60 °. With the help of gear wheels 10 and And this rotation is increased to 180 °. At each half turn of the gear wheel 10, one of the Fingers 9 fastened on it comes in contact with the cam 8 and turns the sieve on an angle of more IO °, overcoming the resistance of the spring 21. A further turn of the sieve to an angle of 180 ° is performed by the spring 21 and the clamp 22, pressing Ayush: It allows you to use the sieve to sort the material and / e to move the coarse and fines to the discharge ports A and B.

When the screen is rotated, the screen 30 is pressed by the lever 29 with the counterweight 28 to the bottom of the screen and under the action of inertial forces the brush moves along the surface of the fabric and cleans it. The amount of force you press the brush is adjusted by

the stops 27, to which the counterweight 28 drops. The stroke of the brushes is limited by the shock absorbers 31 made of rubber.

In the upper part of the sieve, the brush 30 with the lever 29 and the counterweight 2i8 is detached from the sieve and pressed against the casing steppes.

Subject invention

Claims (2)

1. Seeding a dispersion analyzer comprising a frame, a sieve with a closed surface, tensioned on screw partitions and encased in internal screw blades, brushes and a drive, characterized in that, in order to increase the efficiency of sieving, the sieve is made in the form of a flat four-sided boxes, on the shaft of which a cam is mounted, interacting with a spring clamp fixed on the frame, and connected to the drive by means of a Maltese cross. 2. Seeding under item 1, characterized in that the drive is made with an additional kinematic chain, which by means of a connecting rod is connected to a frame, which is hingedly suspended on a rocking chair, the latter also connected to an additional kinematic chain by means of a connecting rod. 28 f. Ijiijjjjjjj j 4 L "/ IUL -K- -L. .Ju-. ..L.- -L. B. - ..JL- -J-. ///,} / //// ./ (./ f / J, 11 // Have  - -. J I (-4 fpuz.2 27 26 J JO eRig J