SU967916A1 - Loose material slinger - Google Patents

Description

(54) METAL BULK MATERIALS

one

The invention relates to mining, and more specifically to rotary-belt throwers, which can be used to move various bulk materials during laying of the mined-out space in underground conditions and in open work.

A rotary belt thrower is known, consisting of a frame, a drive motor, upper and lower endless conveyor belts, a driving elastic pulley, driven pulleys (1.

The disadvantage of this design is that the drive is carried out only on one pin, which informs the movement of the upper conveyor belt and due to friction through the material being moved - the lower belt.

It is also known to have a throwing device that includes an endless rubberized band that envelops the drive, end and deflecting pulleys. The working tape branch is pressed on a cushioned drum, the cylindrical part of which is made of elastic material. This pressure drum performs the functions of the upper endless belt 2.

A disadvantage of this device is the presence of only one drive drum, which imparts the movement of a directly endless belt and friction — through a material being moved — to a pressure drum, which reduces the throwing distance of the material.

The purpose of the invention is to increase the range of ground sweeps by synchronizing the frequency of rotation of the pressure drum and the endless belt.

to

This goal is achieved by the fact that the engine. The pressure and the driving drums are equipped with pulleys, kinematically interconnected by means of a flexible connection, while the ratio of the diameters of the pulleys and drums

IS is in the following link:

6l. RL

d ;;

where dj, is the diameter of the pulley of the leading drum

20

tapes;

Claims (2)

dg is the diameter of the pulley of the pressure drum; Ojj - diameter of the leading drum of the tape; Dg is the diameter of the pressure drum. 396 In this case, the tape is made of wedge belts with a coating of nz wear resistant elastic material. FIG. 1 shows a thrower, side view; in fig. 2 is a section A-A in FIG. one; in fig. 3 - the same, a variant of the construction of an endless belt with V-belts; in fig. 4 is a section BB in FIG. 1 (with an endless belt with V-belts). The thrower contains a frame 1, an endless conveyor belt 2 with a leading 3. and 4 coaxial pulleys, a pressure drum 5 with an elastic cylindrical surface 6, a driving motor 7 with a transmission 8 (for example, chain or flat belt) on the pulleys 9 of the leading and 10 pressure drums, and baking their counter-rotation, deflecting roller 11, receiving hopper 12. If the working web of an endless belt is made up of V-belts 13, then the pins 3 and 4 are made with grooves 14. When moving material 15 containing simultaneously large and small particles, the canvas is placed a coating 16 of thin and elastic rubber. Thrower works as follows. Before starting, the engine 7 is turned on, which transmits rotation to the pins 9 and 10, selected in such a way that the linear speeds of the cylindrical surface 6 and the endless belt 2 coincide in magnitude. Material 15 is guided into a receiving bin 12, which then enters the work zone between surfaces B and 3 (Fig. 2) and is ejected in the desired direction. If the web of an endless belt is made up of closely spaced V-belts 13 n separated from the material being moved by a thin endless coating, then moving the large pieces (at the same time as the trifle) causes local weaving (Fig. 3) of the web, which explains the relatively high flexibility of individual V-belts . The small particles that are close at the same time remain in a clamped state and also receive the energy necessary for the emission. The application of the present invention will allow a new device efficiency, accompanied by an increase in the irrigation distance and a decrease in the unit energy cost, to increase the reliability of its operation by replacing (k icTpo out of operation of the conveyor belt, V-belts, which have much greater flexibility and wear resistance. Formula 1. The thrower of loose materials, including a frame, an endless belt mounted on the leading and final drums, a pressure drum interacting with the belt, and an engine characterized in that, in order to increase the ground sweeping range by synchronizing the rotational speed of the pressure drum and the endless belt, the engine, the pressure drum and the leading drum have shkiki, which are kinematically connected to each other by means of a flexible connection, while the diameters of the tails and drums are in the following ratio: where d is the diameter of the tongue of the leading drum d5 is the diameter of the clamp of the pressure drum; Od is the diameter of the leading drum of the belt; OB is the diameter of the inlay drum. 2. The thrower according to clause L, which is made from the fact that the tape is made of V-belts with a coating of wear-resistant elastic material. Information sources taken into account during the examination 1. USSR author's certificate No. 460362, cl. E 02 F 9/00, 1941. 2. Authors certificate of the USSR N 138566, cl. E 21 F 15/06, 1960 (prototype). Jbl P W If / I /