SU1469170A1 - Power support unit - Google Patents

Abstract

The invention relates to mining equipment, in particular to mechanized crepe m clean faces. The goal is to increase the reliability of the section by reducing its stitching while reducing the load on its nodes. The mechanized support section includes hydraulic racks 3, hinged 2133 / / / g. FIG. 1 is connected to the overlap (P) 1 and the base 4, -connected to the slide 5, and the lever (P) 6. The latter has two telescopic interconnected parts 10, 11. To the front part 10 Р 6, leading plates 9 are attached, the ends of which are facing P 1 and the base 4. The bottom part of the base 4 is formed in the form of a truncated pyramid 12, the larger base of which is located at the bottom. Before starting the advancement of the support section, the thrust is removed from the center 3 and lowered by P 1. At the same time, P 6 moves with a turn and decreases its length due to the telescopic parts 10, 11. As a result of this, the strip 9 by the surface T8 and P. 6 between R 6 and L 1, in a blockage. Shtyb on the planes of the pyramid 12 and the supports of the TZ on inclined surfaces moves both into the hollow and the intersectional space BETWEEN the bases of the adjacent sections. 7 il. But about QD and TTG / 8 77/5/5

Description

The invention relates to mining, and more specifically to mechanized crepe and cleaning faces.

The aim of the invention is to increase the reliability of work by reducing its gagging while reducing the load on its components.

Fig. 1 schematically shows a mechanized support section, side view; figure 2 is the same, the view in the plan (the overlap is conventionally not shown); on fig.Z - section aa in figure 1; Fig. A shows a lining section under a thrust in lava; side view; Fig. 3 shows the lining section with thrust before moving to the conveyor (to the face), side view; in fig. 6 - section bb in fig.Z; in Fig. 7, the lining section is moved to the conveyor before the thrust, plan view (overlap not conventionally shown).

The mechanized shaft lining section consists of an overlap 1 with a supporting visor 2, hydraulic posts 3, hinged to the overlap 1 and a base 4, to which the hydraulic jack 5 is connected, and the lever 6, containing two interconnected parts, front of which connected to the overlap 1 by the hinge 7, and the rear to the support 4 of the base by means of the hinge 8 (Figures 1-3). The lever 6 is equipped with leading strips 9 on the side of the slab and consists of two movable telescopic parts: the front (bottomhole) 10 and rear (zavalnoy) 11. The leading strips 9 are attached to the front part 10 of the lever 6 from the sides, and their ends are facing the overlap 1 and base 4. The back part of base 4 is complete in the form of a quadrilateral truncated pyramid 12, the larger base of which is located at the bottom. The support t3 of the attachment of the lever 6 to the base 4 is mounted on the plane 14 of the upper base of the truncated pyramid 12. Moreover, the support 13 and the pyramid T2 have reverse bevels in the form of the planed planes 13-17 with respect to the surface 18 of the base 9 and the bottom 19 of the base 4 lining sections (figures 1 and 3). The angle of inclination of the planes 16 and 17 exceeds the angles of the internal friction and repose of the eminent rock mass.

The device works as follows.

in a way.

In the initial position, the section of the mechanized support is moved away from the conveyor 20, which is located at the bottom. The support is unraveled by hydrorests 3 and, on the base 4, especially on its tail end, under the lever 6, stump accumulates on the side of the dam and through the intersection plugs (Fig.4). However, the presence of a truncated pyramid 12 on the back of the base 4. partially contributes to reducing the accumulation of shtyb.

Before starting the shifting of the section, the supports are removed from the hydraulic rails 3, the spreading and the overlap t is lowered (fig. 3). At the same time, the lever 6 moves with rotation and translationally, reducing its length due to the presence of telescopic parts 10 and 11. As a result, the strips 9 by the surface 18 and the lever 6 itself move the pin between the lever and the overlap 1 into the shaft, and the tip x 14 and 13, respectively, of the truncated pyramid 12 and the support 13 along inclined planes 16 and 17. It moves both into the dam and into the intersectional space between the bases of the adjacent sections. At the same time, the stub turns out to be on the ground and on the surface of the plane 17 near the standing sections of the support

(Fig.6).

 During the movement of the support section by a hydraulic jack 3 to the conveyor 20, the shtyb under the influence of gravitational forces is removed from the bad bones 17, the inclination angles to the soil exceed the internal friction and repose angles of the eruptive rock mass and remain in the pile at the end of the advancement steps bottom (Fig.7).

I

Thus, the proposed s

The use of mechanized shaft support when it is used allows reducing the amount of manual labor for cleaning the support bar, reducing the likelihood of additional loads in the support elements when removing the thrust from it and lowering it to block with the lever. The latter occurs on the complexes used on thin and medium thickness formations. Together, all this will increase the safety of operation of mechanized complexes.

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Claims (2)

Claim The section of powered roof support, including hydraulic stands, pivotally connected to the ceiling and the base connected with the hydraulic jack, shifting, a lever containing two interconnected parts, the front of which is pivotally connected to the ceiling, and the back - with the base support, characterized in that, with In order to increase the reliability of the section by reducing its filling, the lever is equipped with leading strips attached $ from the sides to its front part, the ends of which are facing the ceiling .. and the base, while part of the lever ineny telescopically length greater than the width of each strap 10 levers, and the dam part of the base is made in the form of a truncated pyramid, the larger base of which is located below, 3 3 3 12 7 9 17 15 ju 11 9 3 15 19 P 5 FIG. 2 Aa FIG. 3 / 1 3 ........ / ........ 3 \ 9 s to uJ .--- --- ... r . 7 ^ 7 // 77777/7777 // 7777/7 / FIG. 5 o ΟΙ 7o ° J ^ About ХХУ about ашш7шш g g and о € ° ⁰ ιι \ Хр ° о Chl \ ° n О ~ Ж ° о% Cv * X> XV \> ^ о О η FIG. 5