SU1514952A1 - Breaking cap of power support unit - Google Patents

Abstract

The invention relates to the mining industry, in particular to mechanized crepe and cleaning faces. The goal is to obtain transportable pieces of coal when breaking the roof of the pack. The skiving visor includes a hollow duct 1 with guides, a pull-out cleaver, made in the form of a breaker wedge 3, connected to cantilever shanks installed in the guides, a hydraulic cylinder 7 of the puffing wheel, mounted on the end of the hollow box 1 and connected to with a hollow box 1. The bump wedge 3 is hollow and is formed by the front 4 and rear 5 walls. On the front wall 4, made with vertical slots, the lugs 15 are rigidly fixed, in which the axis 13 of the wedge-shaped disks 8, which are cutters, are mounted for rotation. The wedge-shaped discs 8 are placed in the vertical slots of the front wall 4. When the disperser is pulled out by means of the hydraulic cylinder 7, the wedge-shaped discs 8 are inserted into the under-roof coal pack, which leads to its dismemberment. 6 Il.

Description

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The invention relates to the mining industry, in particular to mechanized crepe and cleaning faces.

The purpose of the invention is to obtain transportable pieces of coal when breaking a roof under the stack.

Fig. 1 shows schematically the proposed overlapping visor of the section of mechanized support. Side view; FIG. 2 is a view A of FIG. 1; in Fig, 3 - a splitting visor, top view; in fig. 4 - section BB in FIG. 3; in fig. 5 - instant BB in FIG. 2; in fig. 6 - the location of the splitting visor on the lining section,

The skimming visor (figs 1-4) includes a hollow duct 1 with guides 2, an outgoing skalivat made of a fender wedge 3 formed by the front 4 and rear 5 walls and the cantilevered shafts 6 associated with it, the hydraulic cylinder 7 of the wiper blade, wedge-shaped discs 8. The hydraulic cylinder 7 (FIG. 3) is placed inside the box 1 between the cantilever shanks b and connected by a hinge 9 with vertical ribs 10 rigidly fixed in the hollow box 1, and by the hinge 11 with eyelets 12, fixed between the walls of the breaker wedge 3, wedge-shaped discs 8 (Figs. 2 and 5) are mounted on axles 13 and placed in vertical slots x14 made in the front wall 4 of the break-away wedge Z. Eyes 15 are rigidly fixed on this left wall, in which axes 13 of the wedge-shaped disks 8 are mounted with the possibility of rotation, . .

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The operation of the splitting visor is as follows.

In the initial position, the scoring visor is pressed against the roof (fig.b) in the upper part of the reservoir. After the hemming of the formation with a plow or other excavation machine, a coal roofing bundle remains, which is separated from the coal mass by a cleaver and is divided into parts with wedge-shaped discs.

8, The movement of the cleaver on the ram is performed by the hydraulic cylinder 7 (FIGS. 1 and 3) at the time of its expansion. The cantilevered shanks b slide along the guides 2 (fig. 4), the reactive force arising during cleavage by the hydraulic cylinder 7 through the hinge 9 and ver

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The ticoric ribs 10 are transferred to the hollow duct 1. In the process of moving the puffer, its break-away wedge 3 is inserted into the under-roofing charcoal pile along the bedding, and the wedge-shaped disks 8 are in contact with the under-roof waddle across the bed. In this case, the wedge-shaped disks 8 create a concentration of stresses at the points of contact with a coal-bundle and form cracks in it across the bed. A further movement of the cleaver to the face is simultaneously accompanied by the separation of the coal bundle, the expansion of transverse cracks and the resolution of the pieces suitable for delivery by the bottomhole conveyor. The installation of wedge-shaped disks on the axes allows them to rotate due to the change in the positions of the points of application and the direction of forces arising from the interaction of these disks with the coal sub-roofing pack, while the self-installation of the wedge-shaped disks with the least resistance occurs, which leads to a decrease in penetration forces. After moving the slider into the cleaving step, the sec- and qi-support is moved to the bottom and the hollow box slides over the cleaver, which is wedged against the bottom,

Formula Mural reteni Skipping visor section mechanized lining, including hollow. box with guides, retractable cleaver, made of. an end wedge from the front and rear walls and associated cantilever shanks installed in the duct guides, the hydraulic cylinder of the swing knob, one end of which is connected to the duct, and the other end with a cleaver, is distinguished from sch.i. and in order to obtain transportable pieces of coal during the breaking of the under-roof bundle, the pulling blade wedge is hollow and equipped with cutters made in the form of wedge-shaped disks — installed with the possibility of rotation in a vertical plane by means of axes and lugs, the latter rigidly mounted on the front wall of the fender wedge, filled with vertical slots, in which the disks are placed.

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Claims (1)

Formula of b. frustration The shearing visor of the mechanized lining section, including a hollow box with guides, a retractable cleaver made of. a fencing wedge with front and rear walls and associated cantilever shanks installed in the duct guides, a shear hydraulic cylinder installed inside the duct, one end of which is connected to the duct, and the other to the cleaver, distinguishing with for producing transportable lumps of coal during breaking of the subroofing bundle; axles and eyes, the latter being rigidly fixed to the front wall of the baffle wedge · made with vertical slots in which the disks are placed.