RU2800997C1 - Centrifugal grinder - Google Patents

Abstract

FIELD: agricultural engineering.

SUBSTANCE: centrifugal grinder contains two coaxially arranged disks mounted with the possibility of rotation in opposite directions relative to each other. On the same shaft, a planetary gear is installed on one side with the right disk fixed on the ring gear and L-shaped knives mounted on it, and the left disk with the identical knives is installed on the other side. The knives of the planetary gear enter the cavity formed by the knives of the left disk, with the possibility of their mutual counter-rotation.

EFFECT: improved grinding efficiency and simplified design.

1 cl, 3 dwg

Description

The invention relates to agricultural engineering, in particular to machines for grinding feed grains and other bulk materials used for feeding animals.

Known shredder (patent No. 2137547, VS 7/02), consisting of two coaxially located and rotating towards each other discs. On the inner surfaces of the disks, annular grooves are made in the form of alternating protrusions and depressions of a triangular shape, and the angle at the tops of the protrusions is equal to the angle of the depressions. In addition, radial grooves are made on the inner surfaces of the disks, in which knives are installed, which copy the annular grooves of the disks in shape and protrude above their surface.

A centrifugal mill for grinding grain and bulk materials is known, containing two coaxially arranged and rotating towards each other disk with alternating concentric truncated cones, on which grinding corrugated blades are installed (see USSR author's certificate No. 552997, V02S 7/02, 1977).

The closest is a centrifugal grinder (patent No. 2627536, V02S 7/02), containing coaxially spaced disks mounted on the same shaft with the possibility of rotation in different directions. On the inner surface of the disks, on fixed axes with the possibility of rotation, angular conical cutters are mounted. The cutters are mounted with the possibility of entry of the right disk into the cavity formed by the cutters of the left disk.

In this design, the grinder is difficult to manufacture.

The technical result is an increase in the efficiency of grinding and a simplification of the design.

This is achieved by the fact that the centrifugal grinder, containing two disks coaxially located and mounted with the possibility of rotation in opposite directions relative to each other, according to the invention, on one shaft on one side there is a planetary mechanism with a right disk fixed on the crown gear and mounted on it L-shaped knives, and on the other hand - the left disk with the same knives, while the planetary gear knives enter the cavity formed by the left disk knives with the possibility of their mutual counter-rotation.

In FIG. 1 shows a centrifugal grinder (side view of the section); in fig. 2 - cross section; in fig. 3 - the shape of the L-shaped knife.

The proposed invention consists of a housing 1, inside which is installed on one shaft 2, on the one hand - a planetary mechanism 3 with a right disk 5 fixed on the crown gear 4 and L-shaped knives 6 mounted on it, and on the other side - a left disk 7 with the same knives 6, while the knives of the planetary mechanism enter the cavity formed by the knives of the left disk, with the possibility of their mutual counter-rotation.

The grinder works as follows. After turning on the electric motor 8, the rotation is transmitted through the safety clutch 9 to the shaft 2. After that, the planetary mechanism 3 comes into operation, where the ring gear with the right disk 5 rotates, while the left disk 7 rotates.

As a result, the knives 6, fixed on the right and left disks, rotate towards each other. In this case, the particles fall under the action of the counter working edges of the knives and are crushed. Then, under the action of its own weight, the particles fall out of the grinder.

The result is improved grinding efficiency while simplifying the design.

Claims (1)

Centrifugal grinder containing two disks coaxially located and mounted with the possibility of rotation in opposite directions relative to each other, characterized in that on one shaft on one side there is a planetary mechanism with a right disk fixed on the crown gear and L-shaped knives mounted on it , and on the other hand - the left disk with the same blades, while the planetary mechanism blades enter the cavity formed by the blades of the left disk, with the possibility of their mutual counter-rotation.