SU20058A1 - Metal miner fastening without racks for workings carried out on coal - Google Patents

Description

It is known to use wood grouses, wedges, etc., which act as core bolts and serve to stretch metal systems of various designs. The author applies them to the metal mine fixing proposed by him (without racks for openings held in coal, for supporting / ceiling fastenings in five versions, differing in ways of strengthening to the side walls of openings and in the forms of the components of the ceiling lining.

1 shows a drawing of FIG. FIG. 2- singing, by feather

option; FIG. 3- option; the same for the second fig. 4- the same, according to the third option;

the same, according to the fourth option; FIG. 5 - the same, in the fifth version; FIG. 6-front view of the fastening of the channel beam lined.

In the first embodiment, the lined beams (Fig. 1) in each development wall closer to the roof is drilled through one hole 4 at an angle of 10-12 °. Wood is inserted into the well, a plug 12 with a length equal to the length of a well, with a diameter slightly less than the diameter of the well. Along the axis of the tube 12 is cut in half, and in each of the floors there is not a planed channel, with a channel with a diameter of 5 mm half the length of the tube and 22-24 mm for the rest of the length. From the end of the channel of a larger diameter, the side of the cork is somewhat hewn. The plug is inserted into the well end with a small channel diameter and is wedged at the wellhead by wedges. Fastening the cork, screw the grouse 2 into it with the lining 9 until refusal. The wood-grouse has a plug-shaped head 6 with bolt holes. The screw cap is screwed into the plug using a rod with heads, one of which is screwing on. The end of the strap 7 is inserted into the plug 6 of the grouse and movably fastened with a bolt 5, the other end of the strap 7, having four bolt holes 11 in length, is bolted to the end of the channel beam 1. The other end of the channel beam 1 is the same as above It is connected to wood grouse in the opposite wall of the excavation. Over channel

the roof beams 1 of the production are tightened with puffs of slabs or milkings wedged to the roof.

According to the second variant, instead of wood grouses and wooden traffic jams, metal splinters 1 and 2 (Fig. 2) with a slope of 5, 6 ° were used. The wedge ends with a screw, a washer is put on the screw, and the wedge is tensioned with a nut. A fork is screwed onto the end of the screw and connected to the channel beam. When harvesting temporary supports, the splitting is released by driving the wedge deep, and for pulling the splitting out of the well, prior to inserting the last, the wires, the ends of which are brought out of the well, are attached to the thick cheeks.

In the third embodiment, the head of a wood grouse has the shape of a hook 1 (Fig. 3), on which a chain with a swivel is put on at one end. The wood-grouse doesn’t screw up the walls of the excavation, the chain is put on, and the slack in it is removed by screwing the wood-grouses.

In the fourth variant, the chain is replaced by gami 1 (fig. 4) of round iron with ring bends on one ends, put on hooks of wood grouses, and on the other ends of the tons g, screw cuts are made: on one right, on the other, left. Tension t g produced by tightening 2, which rotates.

According to the fifth embodiment, the fastening is carried out by two channel beams 1, 1 (Fig. 5), fastened with strips 3 and Relying feet on the rings and the backs of the liners 4, 4, which are attached to the grouse m 2, 2. The slats 3 are equipped with two rows of holes staggered in chess order. The interlocking of the beams with the strips is made by vum bolts through the lower row of hairs of the strips, and on top of the beams the strips are connected by two more bolts through

) the upper rows of holes than achieve} elimination of sagging of the beams.

The subject of the patent.

I 1. A metal miner fastener without racks for workings carried out on coal, characterized in that holes 4,4 were made at the angle of 5-12 to support ceiling shafts; to the horizon, at the top of the production, into which wood-grouse 2, 2 are screwed, the head of which ends with forks 6 and 7 with cables 10 and with holes 11, 1.1 for I bolts 5, 5 serving to attach the channel beam (Fig. one). i 2. The form of mounting, described in paragraph 1, characterized in that, I instead of wood grouses, metal round rivets 11 and I 2, 2 are pushed into the bore holes, ending with screws with washers I for tensioning the channel beam (Fig. 2 ). 3. The form of mounting, described in paragraph 1 of B, characterized using grouse, ending with hooks 1.1 to put on a chain, one end of which is equipped with a swivel (Fig. 3).

4. The form of mounting, described in ppt 1 and 3, characterized in that the chain is replaced by two legs 1, 1 of circular iron I, provided on one side with rings for putting the capercaillis on the hook, and on the other side with cuttings 2, 2, left and right, for screwing ; No delay (Fig. 4).

5. The modification of the mount specified in paragraph 1, characterized by the use, instead of tacking, of an arched truss, consisting of two channel beams 1.1, fastened with two strips 3, and filled with rings on the rings and soles of the liners 4, 4, which attached to the wood grouse m 2, 2 (Fig. 5 and 6).