SU1239356A1 - Excavating unit for steep beds - Google Patents

Description

The invention relates to the mining industry and can be used in the operation of shield units on steep dip seams.

The purpose of the invention is to increase the safety of work and reduce the ash content of coal.

FIG. 1 shows a secluded shield of its unit, a general view of / in FIG. 2 - a telescopic arc, a cross section; FIG. 3 - the same, side view,

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in fig. 4 — the fixed part of the telescopic arch, side view of FIG. 5 - the movable part of the telescopic arc with a retractable shield, side view / in FIG. 6 - the fixed part of the telescopic arc, top view, in FIG. 7 is the movable part of the telescopic arc, top view in FIG. 8; a retractable shield along the top of the formation with stiffened ribs (shown in dashed lines); front view J in FIG. 9, a cutting device for reservoir thickness, a general view, in FIG. 10 shows a rolling device, with a telescopic arch, side view; FIG. 11 - the lower part of the frame of the panel unit section with cutouts.

The extraction unit contains sections 1, a rolling device 2 attached to a guide beam of a conveyor 3, and a telescopic arc 4 arranged therein, for example, of square section with side holes 5 and clamps 6 in the form of two bolts with nuts, having a fixed part 7 (Fig. 4, 6 and 11), the free end of which is made in the form of inside 8 with a T-shape 9 ends inserted into vertical cuts with grooves 10 of the frame 11 of section 1, and the movable part 12 (Fig. 5, 7 and 8), the free end of which is fixed by means of a hinge 13 on a lever 14 having ilku 15. The ends of the plug 15 are connected to a metal segment 16 of circular shape, which is freely placed in the attachment of two hooks 17 in the lower part of the sliding shield 18 with a notch 19 in the upper part installed in the groove 20 of the upper 21 of the section 1. Bottom in The movable part 12 of the telescopic arc 4 (Fig. 3 and 5) at the mating with the hinge 13 is fixed to one end of the ribbon spring 22, and its free end is placed in the groove of the lever 14, the spring.

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contributes to the pressing to the roof of the reservoir of the movable shield 18. The winding device 2 (Fig. 9 and 10) is made in the form of a metal box, for example, of a triangular shape, with side holes 23 for the telescopic arc 4, which after installing the fixed part 7 and inserting into it The movable part 12 is placed between three three rollers 24 installed in the rolling device, two of them in the corners at the base 25, one in the corner of the corner 26.

I

The device works as follows.

After the protective device is attached to the conveyor belt, the coal ditch is last striped by the formation dip (in 0.7 m steps) in the following order: a notch is first made at the roof of the formation, in which pressure is transmitted through roller 24 installed at the apex of corner 26 of the hopper 2 , on the movable part 12 and the entire telescopic arc 4. At its free end is attached one of the ends of the tape spring 22, and its second end is placed in the groove of the lever 14 connected by the hinge 13 with the free end of the movable part 12 having a fork 15, ends otorrhea metal segments 16 are connected with the core circular shape. The latter slides along the plane of the extendable shield 18., freely placed in the hooks 17, attached at the bottom of the outlet shield 18 and moves it along the roof along the dip of the seam to the depth of its excavation, and then with the help of tilting jacks and feeding (shown by dotted lines) the conveyor belt 3 fed to the soil of the formation and removes the rest. a pack of coal

After the coal strip has been removed, the entire thickness of the reservoir and the length of the bottom of the conveyor belt 3, together with the protective system ROI13OM, rises to the initial position, but the retractable shield 16, which has internal stiffening ribs, remains, preventing the rock from falling out and collapsing from the top shield shield is lowered, and the upper shield 18 enters the upper sections of section 1 EP1TOVOY.

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Claims (1)

HEATING UNIT FOR RING • PLASTES, including lining sections, having overlap, base, shield sliding fencing, hydraulic rails, guide beam on which the conveyor is installed, swing and feed hydraulic jacks, characterized in that, in order to increase safety and reduce coal ash, it is equipped with telescopic arcuate guides, the fixed parts of which are hinged on bases with the ability to move along their longitudinal axes, rolling devices mounted on telescopic arcuate guides with the ability to move, GOVERNMENTAL shields installed in the ceiling to be movable, and levers, one end of each of which is pivotally attached to the sliding shield, and the second - to the movable end of the telescopic guide arcuate, the break-in device is configured with rollers, mounted on both sides. arc-shaped guide, and is fixed on the guide beam of the conveyor belt, and the lever is spring-loaded from the side of the arc guide. zi „„ 1239356 A ί 1239356 2