SU1506129A1 - Tie for mine roof supports - Google Patents

Abstract

The invention relates to mining and can be used for fastening workings. The purpose of the invention is to reduce the labor intensity of the installation of the fixing on the support frames. Zatka consists of a rolled overlap (P) and connecting elements. The latter are made in the form of trapezoidal plates (TP) 3, mounted on two transverse sides on the outer and inner surfaces P and connected by rivets 5. The larger bases of TP 3 are oriented to the middle of P. From the side of large bases, P and TP 3 have through grooves 6 The ends of the 4 smaller bases are bent at a right angle, and these TPs 3 are placed on the inner surface of P. When installing the fixings on the frames, the ends of the 4 adjacent attachments are inserted into the through slots 6. 3 Il.

Description

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The invention relates to mining and can be used for fastening mine workings.

The aim of the invention is to reduce the complexity of the installation of the fastener on the support frames.

FIG. 1 shows a puff, general view; in fig. 2 - cutter A-A in FIG. one; in fig. 3 is a schematic of the installation of zatzhk on the support frame.

The hole consists of a roll overlap 1, for example, fiberglass, and installed on two transverse sides on the outer and inner surfaces of the connecting elements. The latter are made in the form of trapezoidal plates 2 and 3. The ends 4 of the smaller bases of the trapezoidal plates placed with the inner overlapping surfaces 1, bent at right angles. The trapezoidal plates 2 and 3 are interconnected by rivets 5 and are oriented with large bases towards the middle of the overlap, with through-slots 6 made in the latter and the trapezoidal plates.

In the initial stage of fastening, one of the ends of the fastener with trapezoidal plates 2 and 3 is fastened between the frame 7 and the rock wall of the excavation and the other end of the fastener is placed on the second frame so that the bends of the ends A enter into engagement with the edge of the special profile frame support. The ends of the 4 limbs bend to the wall special profile. Similarly, stacking is applied along the entire perimeter of the attachment. Next, the lining frame is placed on the newly erected frame in the same sequence of tightening, in which the bends of the trapezoidal plates 3 are inserted into the grooves 6 of the previously installed fixings. The ends of the 4 limb also bend to

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wall special profile. Trapezoidal plates 3 on the support frames overlap the „

The puffs laid and fixed on the frames of the lining and interconnected with each other create a single supporting web supported on the frames of the lining and ensure uniform distribution of loads along the length of the fixed excavation.

The arrangement of the trapezoidal plates with large bases to the middle part of the surface of the fiberglass contributes to an increase in the contact area and reliable fixing of the trapezoidal plates with fiberglass.

Claims (1)

Invention Formula Tightening for supports of mine workings, including roll overlap and connecting elements installed on two transverse sides, characterized in that, in order to reduce the labor intensity of mounting on the support frames, the connecting elements are made in the form of trapezoidal plates placed on the outer and the inner surfaces of the overlap and interconnected, with the trapezoidal plates oriented with large bases towards the middle of the overlap, and through the large bases and in the overlap made through ase, the lower ends of the bases of trapezoidal plates placed on the inner surface of the overlap, are bent at right angles for insertion of said ends into through slots in the plates and overlap adjacent puffs. f1sg.1