RU2816762C1 - Loose material grinder - Google Patents

Abstract

FIELD: various technological processes.

SUBSTANCE: invention relates to grinders which can be used in agriculture for grinding loose materials, for example, grain. Grinder comprises a housing with a grinding chamber, loading bin 12, unloading neck 13, drive shaft 14. Grinding chamber accommodates toothed rotor 4 that can rotate in different directions, and adjustable corrugated deck. Housing is made of a set of modules 1, each of which consists of a pair of opposed corrugated decks made in the form of plates, the corrugated part of which is semi-embracing the upper part of toothed rotor 4. Size of the riffles of the end part of the plates in the pairs is different; at that, the modules are fixed into a single unit by side covers 6, and on each plate with the corrugated end part and the side covers there are symmetrically located adjustment and fixing holes.

EFFECT: grinder provides increased number of modes of crushing degree.

3 cl, 4 dwg

Description

The invention relates to the field of agriculture and can and can be used for grinding bulk materials, such as grain.

A universal small-sized device for grinding feed is known (RU 2766883). The disadvantage of this device is that the rotary crusher does not allow the necessary adjustment of the grinding of grain feed, since the deck has only one degree of freedom.

The closest in its technical essence is a bulk materials shredder containing a housing with a grinding chamber, which houses a gear rotor and an adjustable grooved deck, a loading hopper and an unloading neck, and a drive shaft (RU 2760710, 11/29/2021).

The chopper has the same disadvantages as its previous analogue.

The problem solved by the present invention is to increase the number of modes for the degree of crushing of bulk material with one device.

The technical result is achieved by making a second semi-enveloping plate of each module with a corrugated part a of the rotor with the ability to change the direction of rotation, which allows one chopper to carry out crushing and/or chipping processes in two directions, as well as swapping some modules in the block.

This problem is solved by the fact that in a bulk material shredder containing a housing with a grinding chamber, in which a gear rotor and an adjustable grooved deck are placed, a loading hopper, an unloading neck, a drive shaft, the rotor is designed to rotate in different directions, the housing is made of a set of modules , each module contains a pair of corrugated decks directed towards each other, made in the form of plates with a part of the corrugated end surface, with a gap partially covering the gear rotor, the size of the corrugations of the decks directed towards each other is made different, while the modules are fastened into a single block with side covers , and on each plate with a corrugated end part and on the side covers there are symmetrically located adjustment and mounting holes. The riffles are formed by converging two half-holes of decreasing diameter.

In fig. 1 general view of the chopper.

In fig. Figure 2 shows a diagram of a bulk materials shredder with the side cover removed.

In fig. 3 is a diagram of a possible change in the position of the plates with grooves relative to a gear rotor with one degree of freedom.

In fig. 4 is a diagram of a possible change in the position of the plates with grooves relative to a gear rotor with two degrees of freedom.

The chopper contains a body made of a set of modules 1, each of the modules contains a pair of corrugated decks directed towards each other in the form of plates 2 and 3. Plates 2 and 3, acting as decks, having part of the corrugated end surface, with a gap partially cover the gear rotor 4, made with the ability to rotate in different directions. Plates 2 and 3 are installed with the ability to adjust the gap by changing the angle ϕ of inclination of the surface of their corrugated decks 5 to it. Modules 1 are connected into a single block with pins through holes 7 and fastened with side covers 6 through holes 8 and 11 with bolts (not shown in the figure). The holes 8 and 11 are made oval with the possibility of displacing the bolts placed in them to change the angle of inclination ϕ of the plate 2 relative to the position of the gear rotor. Plate 3 is also movable and can be shifted by an amount α like plate 2. Holes 7 on plates 2 and 3 are made round.

The holes 8 and 11 in the plates 2 and 3 are made symmetrically located, while the center of the oval holes 8 and 11 in the plates 2 and 3 coincides with the center of the round hole in the side covers 6. The size of the grooves 9 on each of the plates included in the pair, and directed towards each other is made different.

Inside the housing there is a grinding chamber 10, assembled from modules 1 fastened into one block, in which a gear rotor 4 is installed, and two plates 2 and 3 partially covering the rotor with a corrugated part of the inner surface. The lower oval hole 11 in the plate 2 and 3 plays the role of an axis of rotation, and also allows the plates 2 and 3 to move closer or further relative to the gear rotor 4.

A loading hopper 12 is installed above the grinding chamber 10, and an unloading neck 13 is located below it. The gear rotor 4 has a drive shaft 14, which is located in a bearing unit 15 attached to one of the side covers 6. The chopper body is attached to the frame (not shown in Fig. shown) on bolted connections. The grooves 9 on the plates 2 and 3 are formed by converging holes 16. The holes 16 forming the grooves from top to bottom are made of decreasing diameter.

The chopper works as follows.

Before starting work, the fixing fasteners on the cover 6 bolts (not shown in the figure) in holes 8 and 11 are loosened and the block of modules 1, consisting of plates 2 connected by pins through holes 7, is rotated on the axis installed in hole 11 and its angle of inclination is adjusted ϕ to rotor 4 depending on the required grinding culture and grinding module. The fastening of the block of modules 1 in holes 8 and 11, after adjusting the angle of its inclination, is rigidly fixed to the cover with 6 bolts. After turning on the drive, through the shaft 14 located in the bearing unit 15, the torque is transmitted to the gear rotor 4, where the material for grinding is supplied from the loading hopper 12 to the grinding chamber 10. Particles of material falling into the half-holes 16 of the grooved decks 5 of the plate 2 are cut off by a gear rotor 4 and transferred under the influence of centrifugal force, gravity and air flow speed into the discharge neck 13. If it is necessary to obtain material with a different grinding module, it is necessary to change the rotation of the rotor 4, in which case the In operation, plates 3, which have a different size of grooves 9 from plates 2, are formed by semi-holes of 16 different diameters. The use of a body from a set of modules 1 with corrugated plates 2 and 3 due to their partial rearrangement in the set allows you to assemble a package for the required productivity and obtain any ratio of the size of the crushed particles.

Claims (3)

1. A bulk material grinder containing a housing with a grinding chamber in which a geared rotor and an adjustable grooved deck are located, a loading hopper, an unloading neck, a drive shaft, characterized in that the rotor is designed to rotate in different directions, the housing is made of a set of modules, each module contains a pair of corrugated decks directed towards each other, made in the form of plates with a part of the corrugated end surface, with a gap partially covering the gear rotor, the size of the corrugations of the decks directed towards each other is made different, while the modules are fastened into a single block with side covers, and on each plate with a corrugated end part and on the side covers there are symmetrically located adjustment and mounting holes. 2. The bulk material shredder according to claim 1, characterized in that the riffles are formed by two converging holes. 3. The bulk material shredder according to claim 2, characterized in that the half-holes forming the grooves are made of decreasing diameter.