SU757190A1 - Grain disintegrator - Google Patents

Description

The invention relates to devices for grinding materials and can be applied in agricultural engineering and other industries.

Known grain grinder, containing the boot chamber with the feed knives and disk movable and fixed knives with a slit-like perforation, blades [1].

The disadvantage of such shredders is the uneven supply of grain to the cutting knives, which reduces the efficiency and quality of grinding.

The present invention is devoid of this disadvantage and has the goal of improving the efficiency and quality of grinding.

This goal is achieved by the fact that the grain grinder containing the boot chamber with. feeding knives and movable and fixed disk knives with a slit-like perforation, as well as blades, the latter and the feeding knives are rigidly fixed on under the hinged disk knife, the blades are installed radially, and the feeding knives are inclined in the direction of rotation of the disk knife above its slits, with

2

This slits of the knives intersect each other, and on the fixed disk knife the slits are made inclined to the opposite direction of movement of the disk knife.

FIG. 1 shows a general view of a grain grinder in cross section; in fig. 2 shows section A-A in FIG. one; on

FIG. 3 - section Bb on FIG. one; on FIG. 4 - section Bb on FIG. one? on FIG. 5 - section Yr on FIG. one; on FIG. 6 - section dd on FIG. 3

The grain grinder consists of a loading chamber 1 with a grill 2, pa, 5 distal blades 3 and an annular cone baffle 4, under which on the rotating shaft 5 there is a circular knife 6 with tangential through slots 7; above the latest on

20 disk knife 6 are rigidly fixed in the form of visors feed knives 8, and under the disk knife 6 in the chamber 1 there is a fixed disk knife 9 with radial slots 10 inclined

25 towards the rotation of the circular knife 6; the angle of inclination provides a vertical sinking of the grain into the slot 10 to a depth equal to the value of crushing the grain. In the slots 10 to prevent their production can be installed interchangeable

3

757190

four

lamellar blades 11. Below the blades 6 and 9 of chamber 1 is provided with a cone you ⁰ gruzochnym window 12 (For clarity, the chopper operation in the drawing are shown dotted grain 13). The ends of the feed knives 8 for a better longitudinal orientation of the grains 13 are corrugated. Slots 7 and 10 of knives 6 and 9 intersect each other.

The grinder works as follows.

External drive shaft 5 is rotated, and with it the upper disk knife 6 with feed knives 8 is driven in rotation. Grain 13 is poured into the loading chamber 1, which passes through the grid 2, radial blades 3 and passes through the top of the loading chamber 1. on the rotating disk knife 6. The radial blades 3 prevent the rotational movement of the grain 13. The feed knives 8 overlap the grain 13, capture it, partially orient it in the direction of their corrugations and the grain backed by the layer is directed into the slots 7. When moving s last slot 7 aligned with the inclined slit 10 of the stationary knife 9. The grains 13 of the slit 7 extend into the slot 10 by the amount of its recess and the slope are cut knives 11. Each following grain falls to the same depth of slits 10 and trimmed in the same manner. The cut parts of the grains 13 fall out of the slot 10 downwards, from where they are led through the cone and the discharge port 12 to the bunker. The remaining parts of the grains in the slit 7 when turning the knife 6 are combined with the next slit 10 of the lower knife 9. In the same way, they are measured to its depth, cut, etc., and new grains successively arrive in their place 13.

Thus, the grinding of grain 13 according to specified dimensions. The size of the grinding grain 13 can be changed by changing, for example, the thickness of the fixed knife 9, the width of the slit 10, the angle of inclination, this slit, as well as the allowable change in the gap between the circular knives 6 and 9.

The cross arrangement of the slots 7 and 10 on the knives b and 9 allows for cutting grain successively along the slots, which eliminates mechanical shocks in the knives and reduces the cutting resistance. The arrangement of the slits 7 and 10 in various quantitative terms excludes simultaneous cutting in all the slits, and ensures their consistency, which, combined with the cross-slit arrangement of the slits, makes it possible to more evenly distribute the cutting forces throughout the entire turn of the circular knife b.

The use of the specified grinder grain improves the efficiency and quality of grinding.

Claims (1)

Claim A grain grinder containing a loading chamber with feed knives and movable and fixed circular discs with a slit-like perforation, blades, characterized in that, in order to increase the efficiency and quality of grinding, the blades and feed knives are rigidly fixed on the movable disk knife, and the blades are installed radially, and the feed knives are tilted in the direction of rotation of the disk knife above its slits, with the slits of the knives arranged mutually intersecting, and ® on the fixed disk knife the slits are inclined and counter-directed th movement of the movable circular knife.