SU735325A1 - Inertia riddle - Google Patents

Description

The invention relates to equipment for the separation of bulk materials by size and can be used in construction industry, as well as in factories for the enrichment of coal, ore, etc.

A vibrating screen is known, including a screening sieve box, driving / motors / levers, oscillating 1.

The disadvantage of this design lies in its complexity, since for communicating the sieve of oscillations with different frequency and amplitude, it is equipped with two vibrators. A known inertial f poxOT with elliptical vibrations, consisting of a box, oscillating spring shock absorbers, shells, sieves and two vibrators spaced apart along the length of the box 2.

In order to receive directional or elliptic oscillations with different angles of inclination of the major axis of the ellipse, the vibrator is equipped with movable unbalances with equal or different masses, the relative position of which is adjusted so as to obtain the resultant force of the required magnitude and direction.

The disadvantage of this design also lies in the complexity of its design.

The purpose of the invention is to simplify the design of the group.

This is achieved by the fact that the shells are made of four annular parts, two of which are rigidly fixed on the overlay sheets mounted on the sidewalls of the duct, and the other two are hinged and spring-loaded. To communicate the circular oscillation box, the articulated parts of the shells are fitted with stops.

15

FIG. 1 shows the proposed screen, a general view of FIG. 2 is a section A-A in FIG. 1; Figure 3, is a view along arrow B in FIG. 2 (for the case of elliptic vibrations of the duct); on

20 of FIG. 4 - the same (for the case of circular oscillations of the box).

The inertial screen has a duct 1 with sieves, 1 installed on the supporting shock absorbers 2, an electric motor 3,

15 connected to the support 4 5. On the Zina electric motor shaft 5 are fixed levers 6, in grooves of which on axes 7 in bearings 8 are installed with the possibility of radial displacement of unbalance: weights (rollers) 9,

interacting with the inner power of Hyost Mi shells. -Each shell consists of four parts, made in the form of parts of the cool rings, reinforced with a sheet of sheet 10, which is attached with the aid of the boltub to the box of the roar. Two lacTH 11 shells are rigidly fixed on sheet 10, and the other two parts 12 are pivotally mounted on sheet 10 and npyjKHHaNfM 13 are tucked in,

The roar works as follows

When the electric motor is switched on, the arms 6 with the rollers 9 begin to rotate. Under the influence of centrifugal SI.HA, the rollers 9 with the axles 7 and the substructure 8 move in the slots of the arms b and move toward the inner surfaces of the shells.

At steady state, the centrifugal force of inertia from the rotation of the rollers 9. Drives the screen 1 of the screen in an elliptical or circular motion. The direction of rotation of the roller 9 in FIGS. 3 and 4 is indicated by arrows,

At. the rotation of the rollers 9 (see fig. 3) Kopci6 1 elliptical oscillates. When the rollers 9 pass through the inner surfaces of the parts 11, KODo6y is transferred to a completely inertial force from the rotation of the rollers 9. When the rollers 9 pass through the inner surfaces of the parts 12, they rotate around the hinge by 1 minute, so that the deformation of the spring, and part of it will be transmitted to the screen box. Due to the fact that the box 1 of the screen is transmitted in different sizes. Mutually perpendicular directions of force, it will perform elliptical oscillations. Magnitude

the minor axis of the ellipse varies depending on the stiffness of the springs.

If it is necessary to change the angle of inclination of the major axis of the ellipse, it is enough to turn overlaid sheets with shells to the corresponding values.

Without changes in the design of the screen, the box can be given the same inertial force in all directions, and it will perform circular oscillations (see Fig. 4). In order to communicate the circular vibration oscillation box, instead of the springs on the overlay sheets 10, it is necessary to install the stops 14,. .

Claims (1)

Invention Formula 1, an inertial screen, containing a screen with sieves, supporting shock absorbers, a drive with unbalanced weights, made in the form of rollers rolling around on the inner surfaces of the shells, which, in order to simplify the design, the shells are made of four annular parts, two of which are rigidly fastened on the overlay sheets mounted on the sides of the box, and the other two are hinged and clamped springs. 2, Inertial pop screen, 1, characterized in that, in order to communicate the circular vibration oscillation box, the articulated parts of the shells are fitted with stops. Sources of information taken into account in the examination 1, Patent of Great Britain No. 1349025, Cl, B2H, Publication, 1974, Z. Patent of France. 12222127, class, 07 B, published. I960 (Prototype), 2 fl 9 " luis J