SU328240A1 - B. V. Sudnishnikov, A. D. Kostylev, K. S. Gurkov, K. K. Tupitsyn, V. V. Klimashko, V. D. Plavskikh, N. G. Nazarov and L. G. Rozhkov - Google Patents

Description

Known devices for punching wells in the ground include a housing with a hammer placed in it, an air-conducting pipe and a sleeve.

The purpose of the invention is to enable the device to reverse.

This is due to the fact that the air duct of the 1st branch pipe is mounted in the device case with the possibility of its rearward non-temporary. At the same time, in the body of the air duct, channels and windows can be formed on its pipe, but one of the windows can be formed on the side wall of the pipe.

FIG. 1 shows the proposed device in a positio corresponding to its forward course; in fig. 2 - the same, in the position corresponding to the return motion of the device.

The device consists of a housing 1, a drummer 2, an air-conducting pipe 3, a sleeve 4 and a nut 5.

Cornus is a dead pipe. Its internal surface to guide the movement of the hammer. The nozzle has air-conducting channels and windows and is connected to the thread by means of a thread with a nut 5. One end of the nozzle enters the tail end of the striker, and the other end is connected by means of fitting 6 with flexible hose 7 for compressed air supply. A sleeve is installed on the nozzle, interacting with the drummer and having the possibility of axial non-displacement. The nut is the rear wall of the housing and receives blows when the device is reversed.

The device travels forward as follows.

In the initial nanojinn drummer and bushing are 13 extreme rear positions (on FNG. 1 - in upper m.), In the window) of the window 8 of the indentation are open. The chamber 9 through the windows JO; punch; 1Nka, oxydale and channel 12 communicates with the atmosphere. Under the action of compressed air entering through the channel 13 into the cavity 14 and the chamber 15, the hammer moves forward. On

a given distance from the beginning of the stroke of the striker, its projection 16 cuts into contact with the front (in Fig. 1 - lower) bushing protrusion and, moving it through the nozzle, closes the windows 8, stopping the inlet of compressed air into the chamber 15. A further movement of the striker forward is effected by the energy of the air expanding in the chamber 15. At the end of the stroke, the impactor strikes the head of the private body and

embedded in the ground.

At a given distance from the end of the stroke of the striker, the window 11 is opened with its end edge and, as a result, the exhaust of air from the chamber 15 passes through the channel 12

end edge of the patrol and compressed air from the cavity 14 enters the chamber 9.

After the blow is struck, the impactor begins to move backward under the action of compressed air in chamber 9. The sleeve remains in the extreme front position, i.e., the windows 8 are closed. The windows 10 overlap with the side surface of the nozzle 3 and the compressed air inlet to the chamber 9 is stopped. The drummer continues to move due to the energy of the expanding air. At predetermined distances from the end of the return stroke of the striker 2, its windows 10 are aligned with the windows of the // nozzle and from chamber 9 through channel 12, air is exhausted into the atmosphere, and the protrusion protrusion 16 comes into contact with the rear (Fig. 1 - upper) protrusion of the sleeve 4, pushing it further movement to its original position, i.e., opening windows 8 through which compressed air is introduced into chamber 15, as a result of which the drummer slows down without having time to strike. In the following, the cycle repeats.

To switch the device to reverse, it is necessary to move the nozzle from the front to the rearmost position, for example, by rotating the hose until the iie pipe is screwed into the nut until it stops.

During the movement of the shock, the window W will open openly, therefore the air intake into chamber 9 will occur earlier. Udarpik, not having time to strike, will slow down, and then begin to move in the opposite direction. When the latter moves in the reverse direction, the windows // and the windows 8 will open later, i.e. the exhaust of air from the chamber 9 and the compressed air inlet to the chamber 15 will take place later and therefore, not having time to brake, the drummer will strike the nut and in this way the device will reverse. In the following, the cycle repeats.

Subject invention

1. A device for punching wells in the ground, including a housing with a housing

A hammer, an air-inlet nozzle and a sleeve, characterized in that, in order to enable the device to reverse, the air-conducting nozzle is mounted in the body of the device

longitudinal movement.

2. Device no. 1, characterized by that the channels and windows are formed in the body of the air conduit pipe, one of the trenches being formed on the side wall of the pipe.

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