SU1007601A1 - Stem fodder disintegrator - Google Patents

Abstract

1. A CUTTER FEED PACKER, containing a chopping drum with knives mounted at an angle to its generator, a shear plate and a slatted sieve, characterized in that, in order to increase productivity, each knife is fixed on the drum by means of a stand and equipped with a comb mounted on its inner side at an angle to the sieve slats. 2. A shredder according to claim 1, characterized in that the angle of the comb relative to the feed direction is selected from a ratio. and L 3. A shredder according to claim 1, characterized in that the angle of the comb relative to the sieve slats is selected from the ratio - -. S where H - stand height; t - step between racks; L is the length of the rack. (L O5

Description

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to the designs of the grinding apparatus of feed machines.

Known choppers feed, including chopping knife drum with radially located knives, a shear device, made in the form of vertically spaced segments 1.

The disadvantage of these grinding apparatus is the cross-face cutting of the stalks of the plant mass - the process of cutting without splitting the stalks along the fibers.

Known chopper stalk feed containing chopping drum with knives mounted at an angle to its generatrix, shear plate and slatted slatto 2.

The disadvantage of this cutting apparatus is that the crushed particles are not split along the fibers and have a small specific evaporation area compared to the split, which negatively affects the productivity of the drying unit when drying grass cutting. The purpose of the invention is to increase productivity.

The goal is achieved by the fact that each knife is fixed on the drum by means of a stand and provided with a comb mounted on its inner side at an angle to the sieve slats.

The angle of the comb relative to the feed direction is selected from the ratio tgct -.

The angle of the comb relative to the slat plate is selected from the ratio tg where H is the height of the stand; L is the length of the rack; t - step between racks. FIG. 1 shows a stalk feed chopper; in fig. 2 - ribs; in fig. 3 is a schematic scan of the surface of the drum and sieve; in fig. 4 - geometric calculation of the set angles of the comb-ripper; in fig. 5 is a layout diagram of disks, racks, knives on a drum shaft.

Grinder stalk feed consists of a horizontally located drive shaft 1 with a drum 2 rigidly fixed on it, made in the form of discs, to which stands 3 are attached, the upper part of which is bent away from the plane

rotation of the disks at an angle of 45 °. The knives 4 are fastened in the upper plane of the stand, and the combing machine 5 is mounted in the lower part of the plane of the stand. The lower part of the chopping drum is covered with a slatted sieve 6. A counter plate 7 is located at the entrance of the chopper.

Comb-rider 5 is located at an angle oi. to the direction of rotation of the drum and the angle to the sieve bars 8.

0 Grinder stalk feed works as follows.

The stem mass entering the grinding apparatus meets the comb 5. When meeting 5 with a portion of the mass, the comb loosens the mass layer due to the effect of the circumferential force, and also moves it along the inclined plane F (Fig. 4) towards the adjacent row of blades ( Fig. 3 path AD). The intensity of the splitting of the product is directly proportional to the path of its passage.

0 along the sieve bars 8. From the sweep (Fig. 3) of the sieve, it can be seen that the path of the material through the sieve bars 8 increases according to the tangential dependence and for one section of the blades is

those. is expressed by the hypotenuse of an isosceles triangle A MD

(A "M)" + (MJ) V,

Fig; 4 shows a graphical calculation of the angles of the plane of the racks of fastening the knives 3 (shown conventionally in the form of the intersection of two QMS planes).

Product movement for active

the impact on it must have a direction lying in the F plane, due to the angle oL, and interconnected with the design parameters of the uprights and the step t of their location.

Taking into account the overlap between the knives, which is expressed by the line MN, we can determine the angle

The use of the proposed shredder-stalk feeder feed allows for intensive grinding and splitting of the product, to improve the energy performance of the shredder, as well as to increase the productivity of high-temperature drying units.

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Claims (3)

1. GRINDER OF STEMAL FEEDS, comprising a chopping drum with knives installed at an angle to its generatrix, an opposing plate and a slatted sieve, characterized in that, in order to increase productivity, each knife is fixed to the bar by means of a rack and equipped with a comb mounted on it inner side at an angle to the strips of the sieve. 2. Chopper according to π. 1, characterized in that the angle of the comb relative to the feed direction is selected from the ratio t - ⁿ 3. Chopper according to π. 1, different. the fact that the angle of placement of the comb relative to the strips of the sieve is selected from the relation where H is the height of the rack; t is the step between the racks; L is the length of the rack.