SU1236108A1 - Support of special rolled shape - Google Patents

Description

The invention relates to mining, and more specifically to the technique and technology of fastening mining operations carried out in unstable rocks.

The purpose of the invention is to increase the life of the support by uniformly distributing the load on the support.

FIG. 1 shows the lining of the special profile, a general view; in fig. 2 shows a section A-A in FIG. in fig. 3 - the node in FIG. 2; in fig. 4 - knot on

Fig, 1,

The support from the special profile consists of separate frames. Each frame has pillars 1 and up to 2. With unstable soil rocks, the support includes level 3. Connected elements of the support have locks 4, including strips 5 and clamps 6 with nuts 7. Connection between frames is carried out using progons 8 made of special profile segments, which are rigidly connected with each other with overlapping so that the end 9 of one pass 8 and the beginning 10 of the other with the help of locks 4 are clamped on adjacent frames. Runs 8 are installed in the joints of racks

1 with the top 2, and if there are lezhn in places of articulated racks with we lie.

The bending of the strips 5 of the locks 4 is made at an angle oi to their outer edges 11, due to which the strips 5 diagonally cover the purlins 8, and the surfaces of the lugs 12 of the slats 5 are perpendicular to the ends 13 of the collar 6. With the help of locks 4 they connect the purlins 8 to those located under the right At the articulation point of the stand 1 with the top 2, the locks 4 are the device for fastening the runs 8 to the frame and at the same time perform the functions of the compliance unit. The runs 8. On the articulation of the top of the rack with the rack of one of the shelves 14 are in contact with the bottom 15 of the top and the end of the 16 of the rack, and the second shelf 17 - with the bottom of the 18 rack. Runs 8 at the articulation of the rack with a lying one of the shelves 19 are in contact with the bottom 18 of the rack and the bottom 20 lying, and the second shelf 21 - with the bottom 20 lying.

The fixing of the purlins 8 at a given height from the soil surface at the articulation of the rack with the upper part is achieved by the contact of one shelf 14 with a torus 2361082

the rack 16, and at the articulation of the rack with a flat-bottom connection of the purlins 8 and the recruiting strips 4. The purlins 8 are the longitudinal connection between the individual support frames. Racks are equipped with lugs 22. The latter is placed on the upper end of the rack, rigidly mounted on one of its shelves 23 and is in contact with the clamp 6.

10 Mounting lining is carried out as follows.

After pushing the fence in a step of installation, the ground level is laid directly onto the soil surface,

15, in the protrusions of which the lower ends of the posts are placed, and raise the upper side, which is temporarily connected to the stand. Frame lining after assembly wedged. As mounting fasteners

20 frames are installed in the passages 8. For this, the latter are installed in the joints; the stands with the tops and the stands with 1 are laid.

When dismounting, the uprights for the upper 35 ka and the top runs 8 are supported and therefore the frame only partially loses its carrying capacity (Fig. 1).

0

five

0

S

0

five

When cutting the mating, several racks 1 are removed, and the runs 8 in this case take up the load, perform the functions of the top and the top of the chamber frame.

The job of the lining is as follows.

When a concentrated load P is applied to the support frame, the load is transmitted through the upper supports to the adjacent frames and spread out over several nearest frames. Adjacent frame as precipitation lining work simultaneously. when shifting, it presses on run B, which is sufficiently rigid to displace on adjacent frames. As the frames move toward the top of the rack 1, the collar 6 is carried along. However, the stop 22, rigidly connected to the upper end of the rack, holds the collar in place, which contributes to the uniformity of the operation of the nodes on the adjacent frames and prevents wedging of locks. With increasing load on the mounting frame, purlins 8, usn31236108 4

Fixed at the articulation of the uprights and frames due to their rigid connection of the lying, not only uniformly spreading with the help of locks 4, but also keep the load on the lying of the adjacent lying against the fold.

I

2

15

P

Fig.Z

/ J

FIG.

Compiled by L. Berezkina Editor M.Blanar Tehred L, Serdyukova Proofreader

Order 3074/33 Circulation 470Subscription

VNIIPI State Committee of the USSR

for inventions and discoveries 113035, Moskvl, Zh-35, Raushsk nab., d.4 / 5

Production and Printing Enterprise, Uzhgorod, Proektna St., 4

V .. Sirohmai

Claims (1)

FASTENERS FROM SPECIAL PROFILE, including the top, racks interconnected by means of locks, and interframe connection made in the form of runs, characterized in that, in order to increase the service life of the lining by evenly distributing the load on the lining, the runs are made of overlap rigidly interconnected sections of the special profile installed by the overlap area in the nodes of the connection between the upper and the struts, and the runs are installed with the possibility of interaction of one shelf of the internal special profile with the bottom of the upper and the butt of the rack, and others the second - to the bottom of the rack, with bent locks strips at an angle to their outer edges. phage 1 1 1236 108 2