SU1530784A1 - Flexible roof bolt - Google Patents

Abstract

The invention relates to the mining industry. The goal is to provide the ability to reuse the flexible strand (GP) and the spacer of the flexible anchor with the base plate. Flexible anchor contains a wedge lock 3 at the bottom of the well 2, SE, base plate 6 with a central hole and a spacer. Moreover, the HP is folded in half to form a loop 1 placed in lock 3. The spacer is made in the form of a wedge 7 with through longitudinal holes 8 and 9, through which the ends of GP 12 and 13 protruding from the well 2 are passed. 9 of the wedge 7 by means of latches (F) 14 and 15. Wedge 7 is inserted into the hole of the plate 6 and the wellhead 2. A drummer 16 is installed between the lock 3 and the spacer fixture on one of the branches of the HP and a lock 3 is inserted into the drilled well 2 fixed in it, set the base plate 6 and the wedge 7, n pull the ends of the GPs 12 and 13 and fix them in the wedge 7 by means of Ф 14 and 15. When removing the anchor for reuse, remove Ф 14 and 15 from the holes 8 and 9 of the wedge 7, strike the wedge 7 with the striker 16, remove the wedge 7 and the slab 6, pull the HP over the end 12, while the lock 3 remains in the well 2. 3 sludge.

Description

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hole and spacer. Moreover, m is folded in half to form a loop 1 placed in lock 3. The expansion device is made in the form of a wedge 7 with through holes 8 and 9, through which the ends of HP 12 and 13 protruding from the well 2 are passed. and 9 of the wedge 7 through BOM clamps (F) 14 and 15. Wedge 7 is inserted into the hole of the plate 6 and the wellhead 2. On one of the branches of the SE between chamkom 3 and the spacer device

The invention relates to the mining industry, namely to the fastening of the mine workings with cable anchors.

The aim of the invention is to provide the possibility of reuse of the flexible strand and the spacer of the flexible anchor with the base plate.

Figure 1 shows a well with a flexible anchor installed in it, a longitudinal section along the axis; Figures 2 and 3 are section A-A in Figure 1 (embodiments of the wedge).

The flexible anchor consists of a flexible strand folded double to form a loop 1 placed at the bottom of the well 2 of a wedge lock 3, the wedge 4 of which has an opening 5 for the loop 1, a base plate 6 with a central hole and a spacer. The latter is made in the form of a wedge 7 inserted into the hole of the plate 6 and the wellhead 2, which has longitudinal holes 8 and 9 (FIG. 2) or slots 10 and 11 (FIG. 3). The ends 12 and 13 of the flexible strand protruding from the well are passed through the holes 8 and 9 (their diameter is 1-3 mm larger than the diameter of the flexible strand) and secured in the wedge 7 using clamps 14 and 15. The latter can be made in the form of lock washers , wedges, brackets and other known fasteners. On one of the branches of the flexible strand, for example 12, between the lock 3 and the spacer, the hammer 16 is rigidly mounted, which can be executed as a set of washers or a length of tube attached to the flexible strand. Drummer 16 must be fixed at a distance of 0.25-0.5 the length of well 2 from its mouth

drummer 16 is installed. HP with lock 3 is inserted into the drilled well 2 and secured in it, support plate 6 and wedge 7 are installed, ends of GP 12 and 13 are tightened and fixed in wedge 7 by means of Ф 14 and 15. When removing the anchor for reuse is removed F 14 and 15 from the holes 8 and 9 of the wedge 7, strikes the wedge 7 with the drummer 16, remove: the wedge. 7 and the plate 6, pull the HP out of the horse 12, while the lock 3 remains in the well 2. 3 Il.

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The anchor is installed as follows.

In the mountain massif of the borehole 2 with a diameter of 42-76 m, a depth of 1.0-2.5 m and more. A flexible strand, for example, made of steel or polymer rope with a diameter of 16-32 mm is bent to form a loop 1, and the length of the double rope placed in the well is equal to the length of the latter (1.0-2.5 m or more). The hinge 1 is secured in the borehole using a wedge lock 3. For this, before bending, the thread is threaded into the hole 5 in the wedge 4. The wedge 4 is inserted into the slot of the lock 3. With the help of a setting rod (not shown), lock 3 with a wedge 4 and loop 1 is pushed along well 2 to its bottom and wedged there. The drummer 16 can be fixed both before wedging the wedge lock 3 at the bottom of the well 2, and after. Then the ends 12 and 13 of the flexible strand (the striker 16 is already installed) are passed through the holes 8 and 9 (or slots 10 and 11) of the wedge 7. The supporting plate 6 is already installed. After this, the wedge 7 is wedged in the well, pulled. the ends 12 and 13 of the flexible strand are fastened to the wedge 7 by, for example, locking washers 14 and 15.

For reuse, the anchor is removed as follows. Remove the ends 12 and 13 of the flexible strand from the wedge 7, for example, remove the lock washers 14 and 15, Remove the wedge 7 with the base plate 6. When the wedge 7 is removed, the striker 16 strikes it, tension (or tugging) nonepeMeHf but ends 12 and 13 flexible prd. Then the flexible strand is pulled out of well 2 behind the end 12 equipped with a hammer.

Castle, not, 2.

3 with a wedge A remains in the well Formula of the invention

A flexible anchor that includes a wedge lock at the bottom of the well, a flexible spindle folded twice to form a pegley located in the lock, a support plate with a central hole and pores: a porous device wired as a plate inserted into the hole and the mouth wedge wells for zak-, replenishment of the protruding ends of the flexible strand, distinguished by B. Usan-Podgornov

Editor I.Shulla Tehred M.Didyk

Order 7875/34

Circulation 449

VNIIPI State Committee on Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, 4/5 Raushsk nab.

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 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101

This is due to the fact that, in order to ensure the reuse of the flexible strand and the spacer of the flexible anchor with the base plate, it is equipped with a drummer and clamps, and in the spacer wedge there are scoop longitudinal holes through which the protruding holes are missed: In this case, the impactor is installed between the lock and the expansion device on one of the branches of the flexible strand, and the latches are placed in the wedge holes for securing the protruding ends of the strand therein.

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Claims (1)

Claim A flexible anchor, including a wedge-slot lock at the bottom of the well, a flexible strand folded in half to form a loop placed in the lock, a support plate with a central hole and a spacer made in the form of a wedge inserted into the plate and the wellhead for securing the wedges protruding from wells of the ends of the flexible strand, characterized in that, in order to enable the reuse of the flexible strand and the expansion device of the flexible anchor with the base plate, it is equipped with a hammer and clamps, and in the wedge controversial device skovoznye made longitudinal openings through which pass the ends protruding from the wells of flexible strands, the udaryik mounted between the lock and the spacer device on one of the branches of the flexible strand and the latches are placed in the wedge holes for fixing the protruding ends strands therein. X X- A Editor I. Schull Compiled by B. Usan-Podgornov Tehred M. Didyk 'Corrector 0. Cycle Order 7875/34 Circulation 449 Subscription VNIIIPI of the State Committee for Inventions and Discoveries at the State Committee for Science and Technology 113035, Moscow, Zh-35, Raushskaya nab., D. 4/5 Production and Publishing Plant Patent Uzhhorod, st. Gagarina, 101