RU2807754C1 - Grinder - Google Patents

Abstract

FIELD: agricultural engineering.

SUBSTANCE: machines for grinding fodder grain and other bulk materials used for feeding animals. The grinder contains a body of rectangular cross-section, at the corners of which four bearing units are mounted, on the free ends of the shafts of which hypoid drive gears and corner cutters are installed. At the bottom of the housing there is a rotary support device with a hypoid drive gear mounted on top of its inner ring, which meshes with the hypoid drive gears. At the bottom of the ring there is a pulley with a through hole, connected via a belt drive to an electric motor.

EFFECT: increased grinding efficiency.

1 cl, 2 dwg

Description

The invention relates to agricultural engineering, in particular to machines for grinding feed grain and other bulk materials used for feeding animals. A shredder is known (patent No. 2137547, B02C 7/02), consisting of two coaxially located disks rotating towards each other. 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, shaped to copy the annular grooves of the disks and protruding above their surface

A centrifugal mill is known for grinding grain and bulk materials, containing two coaxially located and rotating towards each other disks with alternating concentric truncated cones, on which grinding corrugated blades are installed (see USSR author's certificate No. 552997, B02S 7/02, 1977).

A centrifugal grinder is known (patent No. 2627536, B02C 7/02), containing coaxially located disks mounted on the same shaft with the possibility of rotation in different directions. Angular conical cutters are mounted on the inner surface of the disks on fixed axes with the possibility of rotation. The cutters are mounted with the possibility of the right disk entering the cavity formed by the cutters of the left disk.

In this design, the chopper is difficult to manufacture.

The closest in technical essence is a centrifugal grinder (patent No. 2728665, B02C 13/00), containing a housing, cutters installed with the possibility of rotating them in opposite directions relative to each other, characterized in that the device contains a housing, inside which they are installed on the same axis solid and hollow shafts, and the hollow shafts are connected to the electric motor by means of a gear transmission, and the solid shaft is connected by means of a belt drive, while the internal cutters mounted on the solid shaft enter the cavity formed by the external cutters mounted on the hollow shafts with the possibility of their mutual counter-rotation.

The technical result is increased grinding efficiency.

The technical result is achieved in that the device contains a housing of rectangular cross-section, at the corners of which four bearing units are mounted, on the free ends of the shafts of which driven hypoid gears and angle cutters are installed, and at the bottom of the housing there is a rotary support device, with a hypoid gear mounted on top of its inner ring. a drive gear that meshes with hypoid driven gears, and at the bottom of the ring there is a pulley with a through hole, connected by a belt drive to an electric motor.

In fig. 1 shows a side view of the chopper (section); in fig. 2 - top view (section).

The proposed invention consists of a housing 1 of rectangular cross-section, at the corners of which four bearing units 2 are mounted, on the free ends of the shafts 3 of which driven hypoid gears 4 and angle cutters 5 are installed, and at the bottom of the housing there is a rotary support device 6, with a rotary support device 6 mounted on top of its inner ring 7 has a hypoid drive gear 8, which meshes with driven hypoid gears 4, and at the bottom of ring 6 there is a pulley 9 with a through hole, connected via a belt drive 10 to an electric motor 11.

The chopper works as follows. After turning on the electric motor 11, rotation is transmitted through the belt drive 10 to the slewing ring 6, and then through the hypoid drive gear 8 to the hypoid driven gears 4 and angle cutters 5. After which the particles are loaded into the hopper 12, from where they fall into the action zone of oncoming workers edges of the cutters, where they are crushed. Then, under the influence of their own weight, the particles fall out of the shredder.

The result is increased grinding efficiency.

Claims (1)

A grinder containing a housing, cutters, characterized in that the device contains a housing of rectangular cross-section, at the corners of which four bearing units are mounted, on the free ends of the shafts of which driven hypoid gears and angle cutters are installed, and at the bottom of the housing there is a rotary support device with a its inner ring has a hypoid drive gear that meshes with hypoid driven gears, and at the bottom of the ring there is a pulley with a through hole connected by a belt drive to an electric motor.