RU1768282C - Mill - Google Patents

Abstract

Usage: grain grinding in personal subsidiary farms, on small farms. SUMMARY OF THE INVENTION: the mill comprises a housing 1, a rotor 5, in the slots of which working elements 6 are mounted with the possibility of their radial movement by means of a mechanism for adjusting the working gap, a loading hopper 3, an unloading neck 4, and a drive. The mechanism for adjusting the working gap is made in the form of a disk 10 fixed on the axis of the rotor with peripheral protrusions of an oval shape 11 in contact with the end surfaces of the working elements. The number of protrusions is equal to the number of work items. 3 ill.

Description

pt / e1

The invention relates to a device for grinding grain and can be used in personal subsidiary farms, as well as tenants on small farms.

A known microcrusher comprising a housing, a loading hopper and an discharge neck mounted thereon, a gear rotor, as well as a movable deck for adjusting the clearance between the housing and the rotor.

A disadvantage of the known device is the large overall dimensions of the crusher, caused by the need to use movable decks and their adjustment mechanism to change the grinding size.

Closest to the claimed technical solution is a hammer mill, comprising a housing, a disk rotor with hammers, a grinding chamber and a drive located around it, and also a mechanism for adjusting the working gap made in the form of adjusting rings mounted at the ends of the rotor. The rings are able to move relative to the rotor around its axis, while the rotor disks and adjusting rings have grooves through which the axes of the hammers pass, and the grooves of the rings are at an angle to the grooves of the disks.

A disadvantage of the known solution is the difficulty in adjusting the clearance in the mill, since two adjusting rings must be rotated and locked to obtain the required clearance.

Since the rings are not interconnected, their simultaneous rotation is not possible, which leads to distortions of the axes on which the hammers are mounted. The resulting imbalances in the distribution of rotor mass relative to its axis dramatically reduce the operating time of the mill bearing units.

The purpose of the invention is to increase the reliability of the mill.

This goal is achieved by the fact that in the mill containing the housing, the rotor, in the grooves of which the working elements are installed with the possibility of their radial movement using the mechanism for adjusting the working gap, the loading hopper, the discharge neck and drive, the mechanism for adjusting the working gap is made in the form of a fixed on the axis of the disk rotor with oval-shaped peripheral protrusions in contact with the end surfaces of the working elements, the number of protrusions being equal to the number of working elements.

In FIG. 1 shows a general view of the mill; in FIG. 2 - section aa in figure 1; in FIG. 3 is a section BB in FIG. 2.

The mill comprises a housing 1, the inner surface of which is made with teeth 2. On the housing 1, a loading hopper 3 and an unloading neck 4 are installed. Inside the housing 1, a rotor 5 is rotatable, on the peripheral part of which working elements 6 are mounted perpendicular to its side surface. The working elements 6 are able to move radially with the help of the guide protrusion 7 along the through oval groove 8. The fastening of the working elements 6 to the rotor 5 is carried out by means of bolts 9. On B rotor 5 is fixed disc 10 having a peripheral protrusions 11 oval, concentrations, timing with end surfaces of the working elements 6, the number of projections equal to the number of work items. The housing 1 and the rotor 5 form a working chamber 12.

The mill operates as follows.

First, the necessary clearance is set between the teeth 2 and the working elements 6. To do this, loosen the bolts 9 and rotate the disk 10 at a certain angle relative to the rotor 5.

In this case, the working element 6, interacting with the oval surface of the protrusions 11, moves by a predetermined amount in the radial direction, providing the required clearance. The position of the working elements 6 is fixed by means of bolts 9. After setting the required clearance, the rotor is rotated by an electric motor (not shown). At the same time, in the working chamber 12, formed by the housing 1 and the rotor 5, the grain begins to come from the loading hopper 3. Here, the grain under the influence of the teeth 2 and the working elements b begins to intensively grind. The finished product is removed from the mill through the discharge neck 4.

Claims (1)

The claims A mill comprising a housing, a rotor, in the slots of which working elements are mounted with the possibility of their radial movement by means of a mechanism for adjusting the working gap, a loading hopper, a discharge neck and a drive, characterized in that, in order to increase the reliability of the mill, a mechanism for adjusting the working gap made in the form of a disk with peripheral protrusions fixed on the axis of the ro-jropa oval in contact with the end surfaces of the working elements, moreover, the number of protrusions is equal to the number of work elements. 1 Figure 2