SU1161438A1 - Vibration spreader - Google Patents

Abstract

VIBRATION DUMPING containing external and internal sections of flexible, elastic sheet material inclined from the loading end to the unloading side and vibrating drive, characterized in that, in order to reduce the energy consumed, the vibratory drive is made as mounted on the loading and unloading ends of the sections unbalance exciters, while the static moments of unbalances of exciters are determined by the Mcrain Mjarp ratio, where Afpaipp is the static moment of unbalances of the exciters minutes, installed on the internal sections in the unloading zone; Mkraine - the static moment of the unbalance of vibration exciters installed in the extreme sections; unbalanced static moment Mzagr - § owl vibration exciters installed on internal sections in the loading zone. C5 4 ;: SAE 00

Description

The invention relates to a vibration technique, namely, devices for transporting material, and can be used on rock dumps of open-pit mining.

A device for transporting material, consisting of a rigid working body mounted on a frame by means of elastic elements, and vibrodrive 1 is known.

Closest to the present invention is a device for transporting material consisting of inclined from the loading end to the unloading outer and inner sections of a flexible, elastic sheet material, which is the working body, and a vibrating conduit 2 located on the frame.

A disadvantage of the known constructions is a significant energy consumption for the drive of the device due to the irrational distribution of the amplitudes of oscillations over the lengths of the working bodies, which leads to the movement of material from the beginning of the rock located on the working body in the direction opposite to transportation.

The purpose of the invention is to reduce energy consumption.

This goal is achieved by the fact that in a vibrating spreader containing inclined from the loading end to the unloading side located on the frame to the unloading outer and inner sections of flexible, elastic sheet material and vibrodrive, the latter is made in the form of unbalanced vibration exciters installed on the loading and unloading ends of the sections; moments of vibration exciters are defined by the ratio

L / pawp Marat, where Mraggr is the static moment of the unbalance of vibration exciters installed on the internal sections in the discharge zone; L vrain - the static moment of de-vibration of exciters installed in the extreme sections;

Wjarp is the static moment of the unbalance of vibration exciters installed on the internal sections in the loading zone. FIG. 1 shows a vibrating dumper with a dump truck, side view; in fig. 2 - the same, top view; in fig. 3 - the same, front view; in fig. 4 - the same, bottom view.

Vibrating spreader contains a load-carrying body, made in the form of sections - flexible metal strips; sections 1 - internal, sections 2 - external. To prevent spillage to the sides, the end sections 2 are equipped with sides 3. Sections 1 and 2 are mounted on frame 4. There can be small longitudinal gaps between the sections, which are sealed, for example, with rubber pads. Sections 1 and 2 are set at an angle of 10-15 ° in the direction of transport. In sections 1 and 2, zones 5 of loading and zones 6 of unloading can be distinguished. On each section 1 and 2, in zones 5 and 6 of loading and unloading, debalins vibro0 pathogens 7-14 are installed, connected via mufgs 15 to electric motors 16. Vibration exciters 12 and 13, installed on the inner sections 1 in zone 6, have the maximum static moment. unloading. The exciters 8 and 9, installed on the internal sections 1 in zone 5 of the load, have a minimum static moment of the unbalance. The intermediate static moment is unbalanced by vibration exciters 7, 10, 11, and 14, mounted on the outer sections 2.

When loading the spreader with an dump truck, the rock is placed on the working tool in bulk of a conical shape (Fig. 1). The load on the spreader is uneven, both in zones and sections.

 Internal sections 1 are most loaded, loading of external sections 2 is much less. In all sections of the maximum

0 load shifted to zone 5 load.

During operation of the vibration exciters 7-14, the vibrations from sections 1 and 2 are transmitted to the rock. Since in the loading zone of the inner sections 1 vibration exciters 8 and 9 are installed with a minimum static debugging moment, the disturbing force of which is insufficient to transmit vibration to the entire material, the movement of the material from the pile can only occur towards the unloading zone 6 or towards the outer sections 2, material from which all the time

 also moves in the direction of unloading. The bulk of the material located on sections 1 in the loading zone 5 is fixed. The correction of rock movement from pile is shown in FIG. 2 arrows. Such material movements occur as long as the rock remains approximately conical in shape. After unloading half of the volume, the conic shape is lost, the material is arranged in sections 1 and 2 in a uniform layer and moves under the influence of the unbalances of all vibration exciters, including vibration exciters 8 and 9, with a minimum static moment of unbalance that did not cause the material to move in the first half of the cycle .

As a result of the location of the unbalance exciters in the loading and unloading areas of the outer and inner sections and distribution, the static moment of the unbalances in the zones and sections, the movement of material from the conical heap can be avoided.

in the loading area and thereby reduce the power consumption of the drive vibrating spreader.

Fig. 2 s

Fy

Claims (2)

VIBRATION DUMP, containing on the frame inclined external and internal sections and a vibratory drive inclined from the loading end to the unloading end, characterized in that, in order to reduce energy consumption, the vibratory drive is made in the form of unbalanced vibration exciters sections installed on the loading and unloading ends, while the static moments of unbalance exciters are determined by the ratio Mrdzgr 2> Mkraine> Mzagr ·, —static moment of unbalance of vibration exciters installed on internal sections in the discharge zone; - the static moment of unbalance of vibration exciters installed on the extreme sections; - the static moment of unbalance of vibration exciters installed on the internal sec-