SU769008A2 - Pneumatic roof support - Google Patents

Description

(54) PNEUMATIC FIXTURE

FIELD OF THE INVENTION The invention relates to mining, namely, to non-rheumatic crepe and cleaning faces.

Known pneumatic lining, including the base, pneumatic cylinders with connecting elements in the form of rigid frames, flexible hoses and air distributors, connecting elements are equipped with rings, in which are installed pipe sections that form a telescopic connection of cylinders and frame in a vertical plane, and each telescopic joints located in the zazaly part, a stopping device consisting of a wedge connected to it by means of a pull handle and a groove made in the tube section wedge.

This construction does not exclude the possibility of the collapse of the false roof of individual pieces of rock in the bottomhole space above the conveyor, which is its disadvantage.

One of the inventions is the increased reliability of maintaining the bottom hole.

The goal of the goal is achieved by the fact that the pneumatic support is equipped with a visor, which is attached to the telescopic struts by means of two longitudinal

beams and has a number of elastic pipes, which are bent in a vertical plane and fixed on the visor by means of elastic pipes, with the upper ends of the 5 pipes having plugs, and the lower ones are used for connection to the grundue duct.

FIG. 1 shows a general view of the support section; FIG. 2 - the same, top view.

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Pneumatic lining consists of bases / on which air bellows 2 are laid in rows. Inspiration bulbs 2 of each row are connected by means of connecting elements of overlays 3 and fastening bolts 4. 15 Pads 3 end parts of pneumatic brace are additionally fitted with rings 5. Bases / pneumatic fastener are assembled between each other with metal plates 6. At the ends of the pneumatic compression, the support is equipped with telescopic struts made of pipe lengths (5 and 7 n sockets of the 9th base /.

With the connecting elements, the telescopic struts are tightly connected with the power of the rings 5. The lengths of the pipes 7 and 8 and the sockets 9 of the telescopic stands in the lower part of the pneumatic crest have a groove 10 for the locking device. Pneumatic retainer

The support bar 30 includes a wedge // with spacer springs 12, glands 13, a shaft 14 with eccentrics, and a control handle 15.

The cantilever visor is secured with a base 16, made in the form of two longitudinal beams to the telescopic supports. On the cantilever part of the base, the visors are laid in a row, elastic pipes / 7 bent over 3 vertical planes, held in this position elastic by themselves 18. The lower ends of the elastic pipes are used to connect to the group air duct 19, and the air supply and its outlet from the pneumatic pipes are carried out through fittings 20 and 21, while the upper ends of the elastic pipes have plugs 22.

After the installation of pneumatic lining in the worked-out area of the sewage disposal facility, compressed air is supplied to the pneumatic cylinders 2 from the mine pneumatic networks. As the compressed air enters, the pneumatic claws 2 inflate and lift the pneumatic support elements (end face: masonry s, clamping bolts 4J with rings 5. 3 turn, the upper p rings 5 for pneumatic clamps 2 extend pipe sections 7 from pipe sections 8, cylinder 7 the bottom row of pionmobalons 2 are sections of pipes 8 of the base sockets. When the calculated compressed air is reached in pneumatic cylinders 2 klnn 11, stonor devices under the influence of springs 12 enter 10 grooves of pipes 7 and 8 and 9 sockets 9 and thereby fix the position pneumatic lining in the vertical plane.

After fixing the support in the vertical plane, the compressed air is supplied through the fitting 20 and the troupe air duct 19 into the pneumatic pipes 17. After the roof of the bottom hole above the conveyor is spread, the supply of compressed air is stopped ..; il

P:) 11 landing support initially pz plezmatic pipes 19 release compressed air through fitting 21. Next, air is released from pneumatic cylinders 2. Then, eccentric shaft 14 using the handle 15 and 13 and compress 13 compress wedge springs / wedge // from the grooves 10, the sockets 9 n pipe segments 7 and 8. After

When the pneumatic support comes out of contact with the roof, the pneumatic support 1 is placed in a new position.

Such a support structure allows mechanization of the cleaning faces in the

permafrost conditions, where water supply: -a and hydro devices, because of low temperatures, are not suitable for operation. In addition, pouring out the visor increases the addendum 1; maintaining the bottomhole space, since in one of the elastic pipes puncture one of the elastic pipes, the others retain their carrying capacity.

Fort M u land 3 o b r with t e n, n

Pneumatic bolt on the bus. St. L 5S9087, characterized in that, in order to increase the reliability of the maintenance of the wellbore space, it is snab - with a visor, which is fixed on telescopic racks by means of longitudinal beams and has a series of alaetic pipes, which are fastened in a vertical plane and fixed on the visor by

elastic pipes, while the upper ends of the pipes have plugs, and the lower ends serve to be connected to the group duct.

Accuracy of information taken into account for our expertise:

I. USSR Copyright Certificate L 599087, cl. E 21 D 23/00, 03/01/76 (prototype).

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FIG. f

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Claims (1)

Claim Air support by bus St. 's 599087, characterized in that, in order to increase the reliability of maintaining the bottom hole, it is equipped with a visor that is mounted on telescopic racks by means of longitudinal beams and has a number of elastic pipes that are bent in a vertical plane and secured to the visor by means of elastic belts, while the upper ends of the pipes have plugs, and the lower ones are used to connect to a group duct. Source of information taken into account during the examination: I. USSR author's certificate No. 599087, cl. E 21 D 23/00, 01.03.76 (prototype).