SU1567791A1 - Sealing support section - Google Patents

Abstract

The invention relates to underground coal mining, namely, mechanized crepe m (MC). The goal is to increase the reliability of work. The overlap 3 of the end section MK includes the main beam, to which the additional beam (DB) 4 is attached to the hinge (W) 5. The axis W 5 is parallel to the longitudinal axis of the overlap 3. The support W 5 of the attachment of the DB 4 to the main is located between the sides of the DB 4 with shoulder formation . One shoulder 6 is located above the overlap 3 and rests on it with its surface. The other arm 7 is arranged cantileverly and a support 8 is attached to it for fastening the rod of the hydraulic jack 10, the cylinder 11 of which is fixed to the overlap 3. The shoulder 7 DB 4 has a bead 12, and the bottom end of the shoulder 6 DB 4 is bevelled towards the embossing end. Before spreading the linear section 1 MK, placed adjacent to the end section 2 of the support, it is laid on the overlap 3 of the linear section 1 of the support tightening 21. Due to the expansion of the support section, the installation of the installation 21 against the roof is performed. Then remove the thrust in the end section 2 lining. As a result, DB 4, being lowered, rotate relative to the axis of this Ø 5 under the action of the hydraulic jack 10. The rotation of DB 4 is carried out in order to maintain the contact of the end portion of the shoulder 6 DB 4 with a tightening of 21. 4 Il.

Description

The invention relates to underground coal mining, namely to mechanized fasteners for securing the mating of lava with a drift.

The aim of the invention is to increase the reliability of work on the end portion of the lava during the erection of organ lining by providing automatic self-tightening by covering the lining of the lining during its movement while maintaining the original direction of tightening with respect to the overlap of the linear section of the lining and longitudinal beams - lining the lining of the organ p Yes.

Figure 1 shows the overall layout of the lining in the lava, a plan view of figure 2 - view A in figure 1; on fig.Z- section bb on fig.2u on fig.4 - the same, at the moment of moving the lining section.

The support consists of linear 1 and end 2 sections of the support. The overlap 3 (bottom beam) of the end section 2 of the lining is provided with an additional overlap (additional beam) 4. Overlap 4 is connected by means of a hinge 5, the axis of which is parallel to the longitudinal axis of the overlap, with overlap 3 with the formation of shoulders. One shoulder 6 is located above the overlap 3 and rests its surface on the overlap 3, and the other shoulder 7 is located console and attached to it is a support 8 for fastening the rod 9 of the hydraulic cylinder 10 of the turn, the cylinder 11 of which is fixed on the overlap 3. The console part 7 of the additional overlap is provided with a side 12, which is movable relative to the cantilever

part 7 of the additional overlap 4 with the help of a hydraulic jack 13 side extension.

The downhole end of the shoulder 6 of the additional overlap 4 is skewed towards the filling end and is made in the form of a broken line of two parts, of which one part 14 is parallel to the chboy face 15 overlap 3 horse sections 2 of the support, and the other part 1b

rotated towards the dam across the width of the additional overlap 4, having contact with its surface and overlapping 3 end sections 2 of the support (shoulder 6 additional overlap 4).

The cantilever part 7 of overlap 4 along its length is a multiple of the overlap length of the 3 end section 2 of the support to ensure safe conditions of the coal installation of the organ row 17 support, which is located between the extreme section of the end section 2 of the support and the arch support 18 of the preparatory mine 19

In addition, longitudinal beams are used for fastening the roof together with the end section 2 of the support and support of the organ row 17;

the sides of the bottom between the linear section 2 of the support and the support of the organ row 17. The work of the support is carried out as follows.

. In the initial position, the linear 1 and end 2 sections of the lining are in line. On the dam side, organ lining 17 is installed across the width of the cantilevered part 7 of the overlap 4 (Figures 1–3).

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Editor M. Tsitkina

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Compiled by V.Ponomareva

Tehred L. Serdyuk ova Proofreader N. Revska

Order 1311

Circulation 377

VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5

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Claims (1)

Formula of the invention Overlapping of the end section of the mechanized roof support, including the main beam, to which is attached with a hinge, the axis of which is parallel to the longitudinal axis of overlap, the additional beam, to the retractable bur _5, which are articulated at one end with a jack for turning the additional beam and a jack for extending the side, o The fact is that, in order to increase the reliability of operation, the support of the hinge for attaching the additional beam to the main one is located between the sides of the additional beam with the development of the shoulders, one of which is located above the main beam, and the other is cantilevered relative to the last, while the downhole end of the shoulder of the additional beam located above the main beam is beveled towards the θ of the block end, and the other ends of the hydraulic jacks are pivotally mounted respectively on the main and additional beams, while the hinge for attaching the additional beam to the main one is located between the hinges 5 for attaching to these beams of hydraulic jacks for turning the additional beam and extending the side. Φι / t.f bb FIG. J Bb 1 3 2 δ it 4 5 7 20 12 21 FIG. 4