SU1495432A1 - Rock-breaking tool - Google Patents

Abstract

The invention relates to the mining industry. The goal is to increase the efficiency of destruction. The device includes a holder 1 with an axial channel 2, an output nozzle 3 and a carbide insert 4. The holder 1 is placed in a cylindrical holder 6 with the possibility of rotational and translational movement relative to it. In the holder 1 at an angle to its longitudinal axis, the channels 7 are made, which communicate the axial channel 2 with the face. The end of the holder 1 opposite to the bottom is connected to a pressure source that provides the necessary feeding force to the tool and informs the rotational movement of the holder 1. In the holder 6 there are openings on the side of the working head, the distance between which is equal to the distance between the nozzles 8 channels 7, and on the other the end of the cage with its inner side made annular grooves. As a result of the impact on the bottom of the jet of fluid from the axial channel 2 and the feed force through the carbide insert 4, the tool is buried, the sleeve 6 is retracted, opening the water supply from the channels 7 and rotating the holder 1, and the remaining bundle of coal is destroyed. 1 p. F-ly, 4 ill.

Description

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The invention relates to the mining industry,

 The purpose of the invention is to improve the efficiency of destruction due to the formation of additional exposed surfaces.

Figure 1 shows a diagram of the tool; figure 2 - the performance of the tool; in FIG. 3, view A in FIG. 2; figure 4 - the location of the openings on the holder.

The tool consists of a cylindrical holder i with an axial channel 2, ending with an output nozzle 3 and a carbide insert 4. The opposite end of the tool is connected through control switch 5 with a high pressure source, which is made in the form of a pump H and a multiplier M. At the same time the end senses the feed force P, which is created, for example, by the feed cylinder (not-shown)

In the initial position, all the radial channels are completely blocked and only the axial channel 2 with the output nozzle 3 is open, the circumferential holder 6 i closes all the output nozzles of the radial channels 7 with its front end. The tool is brought to the bottom and simultaneously with the feed with force P includes

the impulse of supplying high-pressure working fluid with the help of the control switching device 5, the multiplier M and the pump N. During the impulse and moving the tool forward, a depression in the bottom is formed. Then, separation of the host rocks of the slab is made along the dotted lines (phase III, FIG. 1). For this, the working head is pressed against the face, and the holder 6 is slightly retracted, opening the output nozzles of the radial channels 7. After that, the tool is withdrawn to its original position and brought to the new bottom point, which is located on

The tool is provided with a spanning distance of 25 from the first with my 6, which is mounted coaxially to use the newly formed

tool holder with the possibility of ldolno-axial and rotational movement. The longitudinal channel 2 has additional radial channels 7, which are made at an angle o (to each other, and carbide inserts 8 are installed at the output nozzles of these channels. The holder 6 at one end interacts with the output nozzles of the additional channels 7, and the opposite end of this holder 6 the tool feeding mechanism for the bottomhole with an effort P. The engaging clip 6 from the front end is made with openings 9-11, which are located at a certain distance from each other along an arc of a circle so as to be able to open channels 7 in a predetermined direction and in the desired sequence. At the other end, the circumferential holder 6 has circular grooves 12 which serve as a labyrinth seal between the holder 6 and the holder. In addition, the holder is connected to a pivoting device made, for example, in the form of a worm motorized pair (not shown). The turning device provides a torque K, which is directed along arrow H 1 GLI along arrow B.

The tool works as follows.

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the outcrop plane. For this, pulses are fed from the radial channels in a given direction. This adjustment is made with the help of a rotary mechanism or device in the direction of arrow K in one direction or another, at an angle of-or p.

Claims (2)

1. A tool for destroying rocks, including a cylindrical holder with an axial channel and a conical working head with a carbide insert and an outlet nozzle, characterized in that, in order to increase the efficiency of destruction by forming additional exposed surfaces, the tool is provided with a cylindrical yoke, which is mounted on the holder with the possibility of rotation around its longitudinal axis and reciprocating movement along it, and in the holder there are additional channels with nozzles arranged At an angle to the longitudinal axis of the holder and communicated with the axial channel, the cylindrical yoke is installed with the possibility of blocking additional channels. 2. The tool according to claim 1, about tl and - due to the fact that in the holder there are openings on the side of the working head, the distance between which is equal to the distance between the nozzles in addition. 2 channels, and on the opposite end of the cage there are annular grooves on the inner side. Vida fig.d Thebes.