RU224069U1 - DEVICE FOR GRINDING GRAIN FOOD MATERIALS - Google Patents

Abstract

The utility model relates to the field of agricultural engineering, in particular to machines for grinding grain and feed materials. A device for grinding grain feed materials, containing a welded frame, a grinder body with an electric motor and supply and discharge pipes, a hopper for raw materials, a matrix with radially arranged through oval-oblong holes, a blade wheel with a hub and two blades, the blade of which is shaped like a part hyperbolic spiral, a removable cover secured to the body by means of studs with nuts, a perforated removable plate, and the blade of the blade wheel has a serrated sharpening. The device for grinding grain feed materials is characterized by low energy consumption. 3 ill.

Description

The utility model relates to the field of agricultural engineering, in particular to machines for grinding grain and feed materials.

A device for grinding grain is known [Copyright certificate SU patent No. 1777959, IPC class. В02С 13/08 В02С 13/09, 1992], containing a housing in the form of a truncated cone with loading and unloading nozzles, a rotor located in the housing, rigidly connected to an electric motor.

The disadvantage of the known device is the impossibility of its use for grinding both grain fodder, represented by seeds, for example, barley or oats, and, for example, whole ears of dry corn, which is particularly necessary when preparing feed for young farm animals.

The closest analogue to the claimed one, adopted as a prototype, is a device for grinding grain feed materials [Copyright certificate RU patent No. 1219937, IPC class. В02С 9/02, 2023], containing a housing with loading and unloading nozzles, a rotor located in the housing in the form of a blade wheel, rigidly interconnected with the engine and having a blade made in the form of a part of a hyperbolic spiral with a sharpening angle of the working edge of 60±2°.

The disadvantage of the prototype is the high energy intensity of grinding feed, especially corn cobs.

The technical result of the utility model is a reduction in energy intensity.

The technical result is achieved due to the fact that the blade of the blade wheel has serrated sharpening.

This set of essential features ensures that the proposed device for grinding grain feed materials has new properties that differ from the prototype.

Thus, the declared features of the utility model meet the “novelty” criterion.

In fig. 1 shows a diagram of a device for grinding grain feed materials, side view; Fig. 2 - the same, front view, in Fig. 3 - view of a section of the blade of a blade wheel with serrated sharpening.

A device for grinding grain feed materials, containing a welded frame 1, a grinder body 11 with an electric motor 9 and supply 6 and discharge 2 pipes, a hopper 7 for raw materials, a matrix 13 with radially arranged through oval-oblong holes 14, a blade wheel with a hub and two blades 12 , the blade of which is shaped as part of a hyperbolic spiral, a removable cover 4 attached to the body 11 by means of studs with nuts 3, a perforated removable plate 15, and the blade 16 of the blade wheel has a serrated sharpening.

The device works as follows.

The grain feed material fed into the hopper 7 located on the supports 8, for example, wheat, oats, corn cobs, etc., is supplied in certain doses through the tray 6 and the supply pipe 5 into the internal cavity of the housing 11, limited by the lid 4 to the cylindrical part of the housing 11, where the rotating a blade wheel rigidly mounted on the shaft 10 of the electric motor 9.

Rotating at high speed, the blades with 12 sharp blades with 16 serrated sharpening meet chaotically moving particles of the processed material and crush them. In the process of complex continuous movement in a closed loop, some particles fall into the oval-oblong holes 14 of the matrix 13 and, upon exiting them, meet the blades 16 of the blades 10 sliding along the surface of the matrix (by analogy with the cutting screw of a meat grinder and a matrix with holes). In this case, the crushed material is pinched between the edges of the edge of the hole 14 and the blades of the rotating blades 10. Thus, in the process of repeated impacts, the material is crushed to particle sizes less than 2 mm and passes through the perforated plate 15 and is removed through the discharge pipe 2.

The performance of the apparatus depends on the speed of rotation of the blade wheel and the diameter of the holes in the removable perforated plate 15. In case the cutting edges of the holes 14 on the matrix 13 become dull, it is dismantled and installed on the other side, turning it 180°.

The choice of the shape of the blades 12 in the form of a part of a hyperbolic spiral ensures cutting of the crushed material with sliding, which, in combination with the serrated sharpening of the blade 16, provides the least resistance to the grinding process and reduces energy intensity.

Thus, the stated technical result is achieved.

Information sources

1. Copyright certificate SU patent No. 1777959, IPC class. В02С 13/08 В02С 13/09, 1992.

2. Copyright certificate RU patent No. 1219937, IPC class. В02С 9/02, 2023.

Claims (1)

A device for grinding grain feed materials, containing a welded frame, a grinder body with an electric motor and supply and discharge pipes, a hopper for raw materials, a matrix with radially arranged through oval-oblong holes, a blade wheel with a hub and two blades, the blade of which is shaped like a part hyperbolic spiral, a removable cover attached to the body by means of studs with nuts, a perforated removable plate, characterized in that the blade of the blade wheel has a serrated sharpening.