SU1756753A1 - Device fro purposeful destruction of monolithic objects - Google Patents

Abstract

Device for directional destruction of monolithic objects. Usage: in mining and construction in the extraction of block stone. SUMMARY OF THE INVENTION: The device includes a plug installed in the hole with a charge carrier B B on one end and a tie on the other. Sliding elements are diametrically opposed on the cork, there is a latch of the initial position of the sliding elements and a pull of control of the latch position. Sliding elements are made in the form of spring-loaded incisors pivotally connected to the stopper, and the latter has protrusion-limiting rotation of the incisors. 2 Il.

Description

The invention relates to mining and construction and can be used for the directional split of monolithic objects in the extraction of blocks of natural stone.

Known hydrocline device with sliding cheeks, ensuring the destruction of oversize static on-1 loading.

The disadvantage of this device is low efficiency in the direction of the destruction of monolithic objects.

The closest in technical essence to the present invention is a device for the directional destruction of rocks, including a housing with an explosive charge carrier and a pull, sliding elements mounted on the housing.

The disadvantage of this device is the low efficiency of its work, since it does not provide weakening on

the walls of the hole in the plane of the planned split,

 The purpose of the invention is to increase the efficiency of the device by providing cutting longitudinal slits on the walls of the hole during the explosion of explosive charge.

The goal is achieved by those. that the device for the directional destruction of monolithic objects, including a tube with an explosive charge carrier on one end and a pull coming out of the end of the plug opposite to the explosive charge carrier, sliding elements installed diametrically opposite on the plug, are provided with a lock of the initial position of the sliding elements and an additional tight control of the position of the retainer, wherein the sliding elements are made in the form of spring-loaded incisors pivotally connected to the stopper, and the latter is made with protrusion-limiting turning the incisors.

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Figure 1 shows the device installed in the borehole, a longitudinal section; FIG. 2 is a section A-A in FIG.

The device includes a stopper 1 with explosive charge carrier 2, where explosive charge 3 is located. In the stopper on the axis 4, sliding elements — cutters 5 — are connected to the stopper by springs 6, which press the cutters against the walls of the hole when the device is installed in it. On the cork, there are protrusions 7, limiting the rotation of the incisors. The stopper has a protrusion 9 for connection with the rod 8 - a lock of the initial position of the sliding elements. In addition, the device is provided with an additional 10 for controlling the position of the lock. The motor is connected with a thread 11 to fix the charge of an explosive charge to the end of the plug.

The device works as follows.

Outside of the bore-hole, the plug 1 by the protrusion 9 is connected with the rod 8, while fixing the cutters 5 with the rod in the initial vertical position (see Fig. 1, the cutters are shown in the vertical position with dotted lines). Tux 10 is placed inside the hollow rod 8, connected to the thread with a washer 11, and charge BB 3 is installed at the end of the plug. After assembling the device with the help of the rod 8 is lowered to the bottom of the hole, the guide cutters 5 in the plane of the planned split. Then, holding the device by the grip 10, remove the fixture 8 from the protrusion 9, releasing the cutters 5, which are pressed tightly against the walls of the cord under the action of springs and fix the device in this position.

After that, they turn away from 10, freeing the charge of explosive 3, which drops to the bottom

shp / re, providing an air gap, softening the effect of explosive loads on the device.

The electric pulse applies an explosive charge blast 3, as a result of which the plug 1 begins to move along the hole under the action of the explosion products. The incisors 5 cut into the walls of the cord, turning on axles x 4 until they protrude into the protrusions 7. That

the specified depth of the longitudinal slots on the walls of the hole is maintained at their cutting. (In the drawing, the incisors 5 are shown embedded in the wall of the cord). With further movement of the tube along the hole axis of the hole

they are cut along its entire length, while the previously created slits ensure the formation of a crack in the plane of the projected split.

Claims (1)

Invention Formula Device for directional destruction of monolithic objects, including a plug with a charge carrier В В at one end and a pull coming from the end cork, an opposed carrier of explosive charge, sliding elements installed diametrically opposed to the cork, characterized in that, in order to increase the efficiency of the device the expense of ensuring the cutting of longitudinal cracks on the walls of the hole during the explosion of the explosive charge, it is provided with a lock of the initial position of the sliding elements and additional tight control of the position the locking device, wherein the sliding elements are made in the form of spring-loaded incisors, hingedly connected with the stopper, and the latter is made with protrusions-limiting rotation of the incisors. . / . . "2