SU1357582A1 - Inflatable support unit - Google Patents

Abstract

The invention relates to the field of attachment of a clearing space with mechanized supports in the development of thin coal seams of steep dip. The goal is to increase the need to move the support section. For this, a multi-cavity carrying pneumatic spring is enclosed in an industrial pneumocover 11, consisting of the inner 12 and outer 13 shells. The latter are tightly connected to each other along the perimeter and along the inner surface of the threads 14. The pneumo-sheath 11 with the pneumatic-ballon is placed on the supporting sheets (OL) attached to the cross-arms. Ribs are located on the outer surface of the OL, and a wire mesh is applied on the inner surface of the SL. The pneumatic carrier with pneumatic cover 11 inevitably moves to the bottomhole along with the OL, since the net prevents it from moving relative to the OL. In addition, puff force is applied directly to the pneumatic cover 11 from the cross beams by connecting them with eyelets. Depending on the degree of stability of the roof rocks, compressed air from the pneumocylinder can be released in whole or in part. Air does not discharge from the air bag - -. If necessary, it can be partially released. Thus, the pneumatic moball is always under protective protection. 15 il. Е-Е (Л 00 СП СЛ оО | ЬО 12 ipuz.l

Description

The invention relates to the field of fastening the bottomhole cleaning space with mechanized supports in the development of thin steep coal seams.

The purpose of the invention is to increase the reliability of the support section movement.

FIG. 1 shows mechanized roof supports, the general view of FIG. 2 is a section A-A in FIG. 1; FIG. 3, view B in FIG. 1, in FIG. 4, section B-B in FIG. 2; in fig. 5 is a section of YYD in FIG. 2, in FIG. 6 - cut DD on

FIG. 1-, FIG. 7.-Section E-E in Fig. 6, ig The lumen of the gap; e. Each apron in FIG. 8 - the fastening part of the support consists of two sheets connected

sheet to traverse, in fig. 9 is a section of an LF in FIG. eight; in fig. 10 is a view of FIG. one; FIG. 11 shows a section K-K in FIG. ten; in fig. 12 - LL in FIG. 10j in FIG. 13 is a view M of FIG. 12; in fig. 14 is a view H in FIG. 2 (a device for adjusting the position of the overlaps together with their hydraulic legs); in fig. 15 is a section through the PP in FIG. 14.

between each other by means of fingers and grooves, in which the sheets are moved apart (shifted) when the average

20 hydrostatic 2. Shut off 5 is interconnected by a strap 30.

Dp adjust the position of the overlap 4 and 5 with hydroracks 2 and 3 along the line of incidence (rise) on the overlap

25 and x 5 of each section on the soil and on the roof is installed adjusting device 31 (Fig. 14 and 15), having a hydraulic jack 32 with a rod 33 and a finger 34, a spring 35 with a washer 36

25 and x 5 of each section on the soil and on the roof is installed adjusting device 31 (Fig. 14 and 15), having a hydraulic jack 32 with a rod 33 and a finger 34, a spring 35 with a washer 36

30 and an adjusting hollow nut 37 with a supporting crown 38 fixedly fixed on the connecting bar 30. A fixed washer 39 is fixedly fixed on the rod 33. On the overlap 4

Mechanized lining consists of sections of the same type 1, each of which includes middle 2 and extreme 3 hydraulic legs, forming the downhole part of the ceiling 4 and 5, carrying a multi-cavity pneumatic cylinder 6, having an upper and lower lodge 7, in which the hydraulic jacks 8 are located. The guides 40 for the coat 8 are fastened to the cylinder of each hydrojack 35 by the yoke 9, the hinge 34. For moving the stem 33 s associated with the overlaps 5. The rods 10 have a longitudinal pin 34 in the connecting jack of the hydrojacks hinged to 30. groove, overlap 4. Pneumatic tamper 6, the supporting frame supporting the protective pneumatic cover 11, is designed to support the lower section of the support during its unloading and movement to the bottom. It consists of upper and lower frames. The upper frame consists of 45 profiled guide points: 41 and hydraulic legs 42, and the lower frame. - from the actual frame 43, which is a rigid structure, and hydraulic rails 44. The bottom frame has a holding

the inner 12 and outer 13 shells, which are tightly connected to each other along the perimeter and connected along the inner surface by weights 14. Pneumatic cover 11 with its eyes 15 through pins connected to the eyes 16 of the cross beam 9. The eyes 15 are made, like the shells, of rubber cords and form a unit with them. The pneumatic bore 6 (with pneumatic cover 11) is resting on the support sheets 17 attached to the crossheads 9 by bolts 18.

There are ribs 19 on the outer surface of the support sheets, and a wire mesh 20 is applied on the inner surface. Hydraulics 2 and 3 from the side of the roof have shoes 21, with which they are connected pivotally. The shoes also have a ball 50 of a leg 45, through which the frame is connected to each other. Hydraulic legs are connected to "frame-clamps 46, tightly attached to beams. Hydraulic jack 47 is attached to the bottom frame,

The gg stem of which is associated with an anvil 48 attached to the (1x-frame).

Restriction of movement of the section is done by stopping the interposer 30: over the soil

Nirn connected to floors 4 and 5,

installed on the soil and having

the downhole side of the yoke 22, into which the hydraulics 2 and 3 are inserted with the springs 23. The mid hydraulics 2 have an upper arm 24, pivotally connected to the shoe 21 and suspended by a plate 25. To the upper cam is attached

the upper protective apron 26, and the lower apron 27 is attached to the holder 22 and the side 28 of the hydraulic racks 2 (Fig. 2-4). A strip 29 of a conveyor belt is fastened to the lower apron 27, closing the curfew with fingers and grooves, in which the sheets slide apart (move) when extending the middle

hydrostatic 2. Shut off 5 are interconnected by the strap 30.

Dp of adjusting the position of the overlap 4 and 5 with the hydraulics 2 and 3 along the line of falling (rising) on the overlap

Typically x 5 of each section on the soil and on the roof is installed an adjusting device 31 (Fig. 14 and 15), having a hydraulic jack 32 with a rod 33 and a finger 34, a spring 35 with a washer 36

and an adjusting hollow nut 37 with a supporting crown 38 fixedly fixed on the connecting bar 30. A fixed washer 39 is fixedly fixed on the rod 33. On the overlap 4

guides 40 for finger 34 are fastened. For moving the stem 33 with the finger 34 there is a longitudinal groove in the interposer 30. The supporting frame support is designed to support the lower support section during its unloading and movement to the bottom. It consists of upper and lower frames. The upper frame consists of the profile guide balls: 41 and hydraulic legs 42, and the lower frame. - from the actual frame 43, which is a rigid structure, and hydraulic rails 44. The bottom frame has a holding

50 paws 45, through which the framework is interconnected. Hydraulic legs are connected to "frame-clamps 46, tightly attached to beams. Hydraulic jack 47 is attached to the bottom frame,

The gg stem of which is associated with an anvil 48 attached to the (1x-frame).

Restriction of movement of the section is done by stopping the interposer 30: over the soil

3

focus 49, located on the holder of the average hydraulic 2, and on the roof of the protrusion 50 on the hinge.

Hydraulics-2 and 3 with their lower end (the bottom of the cylinder) rest directly on the soil of the reservoir. The hydraulic columns of the spring 23 rest on the holders 22, press the lower overlaps 4 and 5 to the soil and hydro-supports from the soil are removed during their movement on the bottom. The lodges 7 dp of the hydraulic jacks 8 are made in the form of a glass and are integral with the casing of the pneumocylinder.

The support is designed to work with an excavator combine in the lavas with the laying of the goaf. The work of the support may be carried out according to different schemes depending on the geological conditions of the lava.

 For example, with stable lateral rocks and intensive coal excavation

thirty

Medium Hydraulic Racks 2 can push -25 to be partially discharged. In this way,

the carrying air bag is always under protective protection.

The support is moved section by section, starting from the bottom section. The movement of the lower section is carried out in combination with the work of the supporting lining as follows.

First, at a given step along the profile beams 41, as along the guides, the bottom frame 43 moves with its hydraulic legs 44 by means of a hydraulic cylinder 47. For this, the pressure in the hydraulic legs 44 is released and pressure is delivered to the piston cavity of the hydraulic cylinder. In this case, the jack of the hydraulic cylinder remains stationary, as it rests against the currently fixed support 48 associated with the upper frame. The cylinder also moves to the bottom and, resting against the hydraulic post 44, moves the frame 43 to the bottom.

Movement to the bottom of the upper frame is performed simultaneously with the movement of the lower lining section. For this, the pressure in the hydraulics 42 is relieved and fluid pressure is applied to the shaft of the jack 47. Now the cylinder remains stationary and the shaft retracts into the face, moving the upper frame to the bottom.

from the bottomhole all at the same time after the combine has removed the strip of coal all over the line, lowering it and putting it in a niche. With unstable lateral rocks, the average hydrostatic uplift is carried out on the face following the progress of the combine. At the same time, the broken coal gets on the protective aprons and rolls over them on the face.

When the medium hydraulic post extends to the nick, it is preloaded, and fluid pressure is supplied to the piston cavity of the hydraulic jacks 8. After it is set to a certain value, the pressure in the hydraulic jacks is released and the pressure is applied to the hydrorack (loaded),

The movement of the entire section to the bottom is carried out as follows.

Extreme hydraulic posts 3 are discharged, compressed air is released from the pneumatic cylinder 6 and fluid pressure is supplied to the rod cavity-hydraulic jack 8. At the same time, since the average hydraulic post 2 is loaded (unraveled between soil and roof), the cylinders of hydraulic jacks are forced to move to the bottom and together with them and the cross bar 9 with supporting sheets attached to them, pushing forward 5 overlaps with hydroresistances 3. Pushing up the section is carried out up to the stop 49 and protrusion 50, after which the pressure is released 40

45

50

55

On. thin formations with appropriate mining and geological conditions (for example, with stable shale prone to a smooth descent of fluid in the rod of the hydraulic jacks, pressure is applied to the hydraulic racks and compressed air to the pneumatic cylinder. The section is moved.

Carrying air bag 6 (with air bag 11) inevitably moves to the bottom in 9este with sheets 17, as the grid 20 prevents it from moving relative to the sheets. In addition, the puff force is directly applied to the pneumatic cover from the cross-arms by connecting them with the eyelets 15.

Compressed air from the pneumatic bulb may be released in whole or in part, depending on the degree of stability of the roof rocks. With unstable rocks, compressed air from the airbag is partially discharged and the section is moved with active roof support. The compressed air from the pneumatic coating is not released in all cases. If necessary, he can

thirty

Movement to the bottom of the upper frame is performed simultaneously with the movement of the lower section of the support. For this, the pressure in the hydraulic posts 42 is relieved and fluid pressure is supplied to the drip chamber of the jack 47. Now the cylinder remains stationary and the shaft pulls into the upper frame.

five

On. thin seams with suitable mining and geological conditions (for example, with stable shale prone to a smooth opus5).

which)) the need for support for the lower section since it does not preclude the movement of a section without that air from the pneumoba with significant residual compressed air in it.

Invention formula

Air bag support, including a downhole part with bearing hydraulic legs, connected with hydraulic jacks of movement and traction elements with a bump part, contains-

LE2C

The bearing carrier and crosshead, characterized in that, in order to increase the reliability of its movement, it is provided with supporting sheets, with a ribbed outer surface and a reticular inner surface, which are rigidly fixed on the crossheads, and a protective pneumatic cover made of internal and external shells that are tightly connected to each other along the perimeter of the clutches along the inner surface, while the carrying air bag is placed in a protective air bag that is installed between the supporting sheets.

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Claims (1)

The claims of the invention The section of the pneumatic balloon lining, · including the bottomhole part with bearing hydraulic columns connected by hydraulic jacks of traction and traction elements with a blockage containing the bearing pneumatic cylinder and traverse, characterized in that, in order to increase the reliability of its movement, it is equipped with supporting sheets, with ribbed outer surface and mesh inner surface, which are rigidly fixed to the traverses, and a protective pneumatic cover made of inner and outer shells, which are hermetically connected to each other along l meter strands over the inner surface, wherein the bearing is placed in a protective bellows pnevmochehle which is mounted between the support plates. Srig. 1 A-A r J * »1 * θρ i? ““ I <; D_y,, ES == S ——— 7 - ^ _________ £ / £ 22 C 22 5 - S Fig-z L> View B γχ \\\\\\ Κ \\\ χν ^ \\\\ ^^^] (; BB Figure 3 Ι? Ί ΧΪΟ Yr G Fi. 5 FigM ^ 45 FIG. thirteen 4444444X444444444444444444444 FIG. /5 Π FIG. 14 - Compiled by V. Ponomarev