SU956798A1 - Metallic tubbing for slopes - Google Patents

Description

(54) METAL TUBING STRAP FOR SKATS

one

The invention relates to the mining industry, in particular to the structures of metal tubing supports for ramps, erected in the filling mass.

The known metal tubing support for ramps, consisting of separate sections, each of which includes three tubing, which are terminally joined to each other with linings, and in the longitudinal direction, tubing is connected with flanges acting as stiffeners and which fasten bolted 1.

Disadvantages

The said tubbing support is the laboriousness of manufacturing the expanded consumption and installation of tal.

The closest to the invention according to the technical essence is tubing support for ramps, consisting of separate sections, each of which includes upper, side and lower tubings, made in the form of hollow segments with a supporting frame from the corners and rigidly interconnected 2.

The disadvantage of this support is the low carrying capacity and impossibility, due to structural solutions of the extract for reuse.

The purpose of the invention is to reduce the labor intensity of dismantling works and to ensure the possibility of reuse.

This goal is achieved by the fact that the supporting elements of the frame are made of two rolled profiles installed one on another in the radial plane and rigidly interconnected. moreover, the internal profile is installed by the shelves inwards, and the sections are interconnected in the longitudinal direction by wedge elements from an angle profile.

The connecting elements of the sections are made in the form of wedge-shaped U-shaped brackets installed on the inner shelves of the supporting elements of the frame and fixed on the latter by means of latches.

The inner walls of the U-shaped brackets have a wedge surface in the radial direction and along the arc of tubing.

Claims (2)

FIG. 1 shows several interlocking tubing support rings; in fig. 2 - lining, plan view; in fig. 3 - tubing connection unit by means of U-shaped wedge brackets; in fig. 4 shows section A-A in FIG. 3; in fig. 5 is a section BB in FIG. four; in fig. 6 - connection of tubes with a wedge element from an angle profile. The metal tubbing support for the skates erected in the backfill array consists of separate sections (rings) 1, each of which includes three tubing 2 each, interconnected in the longitudinal direction from the inside by means of wedge elements 3 of the corner profile. Each tubing 2 consists of two supporting connecting pieces of 4 non-casting 5 of sheet steel. The connecting carriers for CA 4 are the supporting elements of the tubing and, mounted in a ring (section), form a support frame support. Each carrier 4 of tubing 2 is made of two rolled profiles: channel 6 on the outside and corner 7 on the inside, mounted one on another in the radial plane and rigidly interconnected. In this case, the internal profile corner 7. set sticks inside. The connection of the individual sections (rings) of the tubing support in the ramp is performed by means of wedge-shaped U-shaped brackets 8 mounted on the inner flanges 7 of the carrier along 4 adjacent sections 1 of the support and fixed by means of a pin 9 and 10. Internal surfaces AND in the force interaction with the shelves of the supporting elements 4 of the tubing frame, made wedge in two directions: in the direction along the arc of the fastened tubings (lining sections) and in the radial direction from the base of the bracket to the edges of its interacting with the tubing ited 11. In this case under one of the pins, in the direction which increases the cross section of wedge shelves, the bracket 8 has a total cross section. The distance between the wedge shelves of the bracket 8 and its design parameters are taken depending on the parameters of the tubbing lining, bearing elements 4 and sealing gaskets 12. The metal tubbing lining works as follows. During the development of the first strip, the support section of the lining is erected, the load compartment of which is equipped with a hatch (not shown). Then, the linear sections 1 are mounted on the support section of the support. In this case, the tubing 2 is mounted into a ring by means of bolted joints and wedge elements 3. Between the ends of the tubing 2 and the wedge elements 3 are installed sealing gaskets 12 made of rubber. Rubber gaskets 12 are also installed between adjacent rings (sections) of the lining between the internal shelves of the corners 7. The connection of the adjacent sections 1 is made by means of U-shaped brackets 8. To install the brackets 8 in the corners of the angles 7, there are holes for the studs 9 and 10. The brace has its 8 end. with the smallest cross-section of the wedge shelves, it is put on the inner flanges of the angles 7 of two adjacent sections 1 and is fixed by a pin 9. Then with a hammer blow, the bracket 8 is stuffed on the shelves (flanges) of the angles 7, the rubber gaskets 12 are compressed and installed a schtift (finger) 10. The number of installed on the shackle section 8 is determined empirically and in service ramp can be increased. The connecting brackets 8 can be made with one pin, and the wedge shelves, with one slope, but to install them, you need to use auxiliary tools, hydraulic or screw clamps. When working the excavation floor, the ramp is redeemed, the tubbing support is demonstrated. Disassembly of the support is carried out section by section from the bottom up, the section of the slope, where the support is dismantled, is buried by the backfill material. When dismounting the tubbing support, the wedge elements 3 are first removed (unstressed), the connecting brackets 8 are removed connecting the dismountable section of the support with the one above. The brackets 8 are removed in the same sequence as was installed. The pin 9 is removed, the bracket is rotated around the pin 10 by means of a lever, which is then removed, and the bracket is knocked off the flanges. This design of the connecting brackets significantly reduces the laboriousness of dismantling works. When installing so-called single-pin brackets, the same tools are necessary for dismantling them as during installation. The implementation of the supporting elements of the tubular support frame from two rolled profiles and rigidly interconnected installed one on the other in the radial plane of the tubing significantly increases their m-resistance compared to the total resistance moment of these profiles. A significant increase in the carrying capacity of the connecting pins 4 should lead to a decrease in the deformation of the tubbing support, which leads to a decrease in the labor costs for its dismantling and an increase in the repeated (repeated) use. At present, all used tubing support in the slopes is not dismantled. The cost of manufacturing 1 m of lining (one section), an average of 600 rubles. At the same time, the weight of the metal structure of the non-demountable part of the tubbing support is 400 kg, which remains free of charge in the worked-out space. Calculated savings are possible due to re-use of roof supports 250 300 t. Rub. per year in terms of the use of tubbing support at the present time, and the scope of its use is expanding. Claim 1. Metallic tubing support for ramps, comprising separate sections consisting of tubing, including a frame and connecting elements, characterized in that, in order to provide reusability of tubing and reduce the complexity of dismantling, the frame supporting elements are made of two rolled profiles installed one on the other in the radial plane and rigidly interconnected, with the internal profile installed inwards by the shelves, and the sections interconnected by a wedge elements. 2. The fastener according to claim 1, characterized in that the connecting elements of the sections are made in the form of wedge-shaped U-shaped brackets installed on the inner shelves of the supporting elements of the frame and fixed on the latter by means of brackets. 3. Build on PP. 1 and 2, characterized in that the inner walls of the U-shaped brackets have a wedge surface in the radial direction and along the arc of the tubing. Sources of information taken into account during the examination 1. USSR author's certificate number 420786, cl. E 21 D 5/00, 1972. 2. USSR author's certificate 597846, cl. E 21 D 5/00, 1976. g It fO Phage.