SU875087A1 - Device for closing inter-unit spaces in power roof supports - Google Patents

Description

(54) DEVICE FOR INTERSECTIONAL CLOSING. Clearances in mechanized fasteners

I

FIELD OF THE INVENTION The invention relates to mining, namely to fastening the workings with mechanized supports.

A device for blocking intersectional gaps in mechanized supports is known, including a guard element mounted on the ceilings of adjacent sections made of rods 1.

The disadvantage of this device is that when it is used in lining on thick and steep seams, it does not ensure complete safety of operations. .

The closest in technical essence to the present invention is a device for blocking intersectional gaps in mechanized supports, including a guard enclosure 2 associated with the overlapping of adjacent sections.

A disadvantage of the known lining is that when moving the sections of the device for closing the intersectional gaps, it moves along with the sections being moved, as a result of which the intersectional gaps at the junction of the moved hecs and the sections remaining in place are not closed. This reduces the safety of work under the roof, because when the roof is covered, pieces of coal or rock can get into the working space, which is especially dangerous when developing powerful inclined and steep coal. plastastov.

The purpose of the invention is to increase the safety of work under the roof when developing powerful inclined and steep coal seams.

The goal is achieved by the fact that the device is equipped with elastic curtains, which are connected with the overlap of adjacent sections, and the enclosing casing is made of elastic panels and located between them an elastic corrugated strip.

FIG. 1 shows a mechanized lining with a device for blocking intersectional gaps, a plan view; in fig. 2

15 shows section A-A in FIG. I; in fig. 3 shows a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. one; in fig. 5 — node 1 in FIG. 3..

Mechanized lining includes Section 1, base beam 2 with installed

20 there are telescopic supports 3 on it, each of which is provided with a guide frame 4 connected to the overlap 5 of section 1, and devices for the overlap; | Г of sectional gaps. Each device for closing the overlapping gaps is made in the form of two stitched elastic panels 6 and 7 of a tarpaulin-like material and an elastically corrugated strip 8 placed between the panels 6 and 7. The sheets 6 and 7 and the corrugated strip 8 are fixed between the guide frames 4 placed under the adjacent sections, on each frame 4, are fixed on both sides by the corners 9, equipped with elastic shafts 10 .. The feature of the mechanized support of the proposed construction is that the device for blocking intersectional The blades are not directly connected to the sections that are moved to the bottom one at a time or in groups, but through frames that move all together with the base beam. As a result, it provides; reliable overlapping of the working space under the roof lining from the roof at the time of shifting the lining to the bottom. When the guide frames 4 of the adjacent sections I are separated from each other and are located at different heights (due to the separation of the sections' racks), the panels 6 and 7 are straightened and the corrugations of the strip 8 are stretched. The intersectional gap is completely covered. At the same time, pieces of coal and rocks that fall on the panel from the side of the roof roll down along the panel towards the dam due to the inclination of the lining after the rise of the formation. In case the adjacent sections 1 are brought together and the frames 4 are at the same height, the corrugations of the strip 8 are compressed and the panels 6 and 7 are corrugated and do not sag. The intersectional gap is also completely covered. At vertical displacements of frame 4 relative to each other, the protection of panels 6 and 7 against possible mechanical effects of metal elements of section 5 of section D is ensured by elastic shafts 10. The proposed design of mechanized support eliminates the variability of the amount of intersectional clearance between sections during the movement of support slaughter This is achieved by fastening the devices for closing the intersectional gaps between the guide frames, the adjacent sections and making them in a form of elastic panels that ensure the complete overlap of the intersectional gaps. Due to this, the safety of work under the lining is enhanced when excavating powerful inclined and steep coal seams after the uprising. Device for blocking intersectional gaps in mechanized roof supports, including a guard sheath associated with overlapping adjacent sections, characterized in that, in order to increase the safety of work under the roof support when working out powerful inclined and steep coal seams, it is equipped with elastic curtains that The enclosures are made of elastic panels and an elastically corrugated strip placed between them. Sources of information taken into account during the examination 1. USSR author's certificate 385048, cl. E 21 D 23/04, 1971. 2.-USSR Copyright Certificate 387121, cl. E 21 D 23/04, 1973.

Phie. /

YES

Phme.5

Claims (1)

Claim A device for overlapping intersectional gaps in mechanized roof supports, including a enclosure associated with the closure of adjacent sections, characterized in that. in order to increase the safety of work under the support during the development of powerful inclined and steep coal seams, it is equipped with elastic curtains that are associated with the overlapping of adjacent sections, and the enclosing casing is made of elastic panels and an elastic corrugated strip placed between ^{30 of} them.