SU1206440A1 - Power support for thick seams - Google Patents

Description

2, Strength pop. 1, differs from the fact that the middle beam of the fence is made with a pro-buckle attached to it from the front console.

3. Build on PP.1 and 2, characterized in that the average

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The invention relates to mechanized supports for underground excavation of heavy, preferably semi-coal seams.

The purpose of the invention is to ensure the work of the support when changing the extracted power of the reservoir.

Figure 1 shows a support section with a vertical front console, side view; figure 2 - the position of the section before installing the front console in a horizontal position; FIG. 3 shows a lining section with a horizontal front console; Fig.4 section aa on Fig.Z.

The support includes a base 1 with a hinged toe 2, a restriction 3 with power elements in the form of side 4 and middle 5 cantilever support beams, supported on hydraulic legs 6 and the side beams 4 are made with longitudinal grooves 7 for placing the support elements of the front console, front console 8, in contact with the fence by means of lateral 9 and middle 10 beams and connected with it by means of the connecting pin I1 inserted into the lugs 12, and the lugs of the fence are designed to exceed its surface, the lever 13 for controlling the cantilever days connected to the fence by means of a pivotally fixed hydraulic jack 14, the front console upper part 15, coaxial holes 16 in the console side beams and holes 17 in its middle beam. The execution of the side support beams 4 in contact with the front console of the grooves ensures lateral stability of the front console in all its positions (three constants 206440

the front console beam is provided with additional openings for the guard and lever.

4. A support according to Claims 1-3, characterized in that the side beams of the front console are made with holes.

points of contact with the fence and the desired direction of its movement on the fence when translated into a horizontal position.

The excess of the lugs 12 of the fence above its surface provides for the movement of the front console without the stop of its side beams 9 into the fence and without loss of contact of all the adjoining elements of the fence and the salt.

The coaxial holes 16 in the side beams of the front console are made to connect the adjacent support sections.

temporary connections placed in these openings, for example, bolts, to insure the front consoles when they are reinstalled.

Mechanized lining works as follows.

With a removable power close to the maximum, the hydraulic legs 6 of the fence 3 and the telescopic front console 8 are moved apart, the console occupies a position close to the normal bedding. Such a position of the canal, which is at some distance from the bottom, with a stable roof and the absence of coal extraction, provides visual observation. the position of the breaker body (auger, bar, bar, etc.) and the state of the slab. With enhanced squeezing of coal or increased pressure of the Scientific Research Institute of collapsed rocks from the side of the developed space, the console is mounted on the face, warning of the rock breaking into the bottom hole space. In this case, it is necessary to break the corner of the bottom: the non-pressed part of the bottom, followed by sectional cutting of the pressed and destroyed coal and shifting with the cross-;

Gsh, without loss of contact of the front console with the bottom. When approaching a disassembly chamber or when transitioning zones of geological disturbances, when the power is lower than the minimum support height for a vertical front console, it is shifted to a horizontal position as follows.

From the vertical position (Fig. 1, the front axle 8, by shortening the hydraulic jack 14, bends against the bottom of the face while reducing the spreadability of the hydraulic supports 6 and reducing its movable part 15 of Fig. 2). After that, the front console is fixed with adjacent sections brought to a similar position by passing temporary connections, such as bolts, chains, etc., into the holes 16 in the side beams 9. Then, from the console connecting node with

the lug 12 is removed by the connector. The finger 1 1, the lever 13 is detached from the hydraulic cylinder 14 and removed from the console by removing the connecting fingers from the holes 17. Then, with the gradual extension of the hydraulic posts 6, to maintain the console 8 in an inclined position - the support section moves to slaughter. The directional movement of the fence 3 along the console 8 ensures constant contacting of the support beams 9 of the console with the slots 7 and the beam 10 with the projection secrets 12 (Fig. 4). In this case, the holes in the lugs of the fence alternately coincide with the holes 17 in the middle beam of the front console. When the necessary holes coincide, a connecting pin is inserted into them, fixing the console 8 on the fence 3, the lever 13 is installed in another place (Fig. 4) and is connected to the hydraulic jack 14. After the section has been moved, the intersection links from the holes are described 16. retracted, hydraulic legs 6 are shortened or spread, depending on the output power, and the sections are set to the desired position. (fig.Z). Similarly, in the reverse order, it is possible to rewire the front cantilevers from the horizontal position (Fig. 3 to the vertical one (Fig. 1), for example, when mounting the mechanized support sections of the assembly 206440

chamber or by passing through a zone with a reduced reservoir capacity.

Reinstall the console from horizontal to vertical position. performed as follows.

The reassembled and adjacent sections are installed on the expansion, which is close to the maximum (Fig. 3) with the downhole curtain retracted (for the reserve of moving the sections forward). The sections are then interconnected by temporary connections placed in the openings 16 in the side beams 9. Thereafter, from

15, the console 13 detaches the lever 13 and the connecting pin 11 is removed from the lugs. The stable position of the console is ensured by its connections with the adjacent consoles.

20 and support beams 9 and 10. on the fence in the corresponding slots. In addition, additional racks can be installed under the console. Next, running from the next section.

25, the hydraulic girders 6 of this section are contracted by lowering the fence 3 and giving the cantilever an inclined position (Fig. 2) until the extreme hole 17 in the cantilever is aligned with the hole in the eyes of the fence. This

the operation is safe and easily accomplished by visually observing the position of the cantilever and the openings 17 relative to the lugs of the fence. In this case, the section may be fed forward (with the downhole conveyor pushed back). After these holes are aligned, the connecting pin 11 is placed in them, the lever 13 is set to a new position, the section moves closer to the face, the hydraulic heads 6 are retracted, so that the remounted section takes up the load of the collapsed roof rocks.

Then, consoles standing through

for example, one section is odd, and after that, after installing several odd sections into the desired position, 50 even sections between them are reassembled. Reassembly can be carried out simultaneously in several places of the lava. After reassembling the standing sections of several sections, the console can be moved to 55. a position close to the vertical one. For this, the next section console is disconnected from the adjacent ones (they remove the temporary connections from the holes 16)

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with simultaneous thrust of the hydraulic jack 14, the contraction of the hydro-ram 6 section is fed forward, increasing the inclination of the console 8. After shifting the section, and .1; The legs 6 are bulging - the section takes the load of the collapsed rocks and is ready for operation in a new position. Next, the standing sections are placed in a similar position.

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. The openings for intersectional connections 16 can also be used when the control hydraulic jack 14 is out of operation by one of the adjacent temporary connections placed in the bore 16 and the replacement of the hydraulic jack can be controlled in conjunction with with her console one hydrodome-0 kratom.

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Claims (4)

1. MECHANIZED FASTENER FOR POWERFUL PLASTES, including base, fencing with side and middle support beams, hydraulic legs supporting the fencing, front console with side and middle beams, connected to the fencing with a connecting finger, lever for controlling the front console, pivotally connected to the hydraulic jack, different the fact that, in order to ensure the work of the lining when changing the extracted capacity of the reservoir, the supporting side beams of the fence are made with longitudinal grooves, in which the side beams of the front console are placed Oli with the ability to move. ' 1 2. A support according to π.1, characterized in that the middle beam of the fence is made with an eye fixed to it from the front console. 3. Krep on PP.1 and 2, characterized in that the average 1206440 front console beam is made with additional holes for the fence and lever. 4. Krep on PP.1-3, characterized in that the side beams of the front console are made with holes. one