SU1404599A1 - Apparatus for driving wells in soil - Google Patents

Description

(21) 3555506 / 29-03

(22) 02.22.83,

(46) 06.23.88. Bnsh. No. 23

(71) Institute of Mining, Siberian Branch, USSR Academy of Sciences

(72) K.S. Gurkov, A.D. Kostylev, V.V. Klimashko, G.A.Tkachenko

and I.P.Leonov

(53) 621.643.2.624.13 (088.8) (56) USSR author's certificate No. 328240, cl. E 02 F 5/18, 1969. USSR Copyright Certificate No. 1362105, cl. E 02 F 5/18, 07.02.83. (54) (57) 1. A DEVICE FOR PUNCHING WELLS IN THE GROUND, comprising a housing with a hammer placed in it, having a through longitudinal hole, an air distribution sleeve with a blind longitudinal hole, intake and exhaust ducts and an air distribution tube with windows and a stand mounted with the possibility of axial movement in the longitudinal hole of the striker and the air distribution sleeve, which is characterized in that, in order to increase the efficiency of the device, it is equipped with an additional air distribution valve deckhouse mounted in the body of the hammer and reported its longitudinal bore.

2. A device according to claim 1, characterized in that additional holes are made in the impactor and the air distribution sleeve parallel to the main holes,

in which an additional distribution tube is installed with the possibility of axial movement, with an additional hole in the drummer communicating with its longitudinal hole.

3. The device according to item 1, about tl and - that the additional and main air distributor; the tubes are placed coaxially, with the additional air distribution tube being placed with the possibility of displacement in the longitudinal opening of the firing pin and with the possibility of interaction

with main air distribution; tube with additional windows.

4. The device on Ш1. 1 and 2, about t, in that the additional and main air distribution pipes have closed ends located in the longitudinal apertures of the air distribution sleeve, which are made through.

with

four; sd

The invention relates to construction equipment, in particular, to devices for punching wells in the soil, those with trenchless laying of communications.

A device for punching wells in the ground is known, comprising a housing, a firing pin having a longitudinal bore, an air distribution sleeve with in-line and exhaust valves, and an air distribution tube placed axially displaced between the impactor and air distribution sleeve C

In this device, a part of the kinetic energy of the impactor is expended on overcoming the counterpressure that occurs in the front chamber of the device due to its disunity, in the direct course of the impactor, with the atmosphere. The back pressure that occurs in the front chamber and the brake drummer reduces the shock power of the device

The closest in technical essence and the achieved result to the invention is a device for punching wells in the ground, comprising a housing with a hammer located in it, having a through longitudinal opening, an air distributor with a sleeve with a deaf longitudinal opening, inlet and exhaust channels and an air distribution tube with windows and a projection disposed with the possibility of axial movement in the longitudinal holes of the striker and the air distribution sleeve 12.

The return stroke of the impactor in the known device is carried out at a constant intake of compressed air (with a pressure equal to the network one) into the front chamber, as a result of which the internal energy of the compressed air is not used at all for useful work. Thus, the known device is uneconomical in operation.

The purpose of the invention is to increase the efficiency of the device.

The goal is achieved in that a device for punching wells in the ground, comprising a housing with a hammer placed in it, having an air distribution sleeve with a deaf rim hole, a through hole longitudinal hole and an air distribution tube with windows and a protrusion positioned axially with a through longitudinal opening. displacement in the longitudinal holes of the impactor and the air distribution sleeve, provided with an additional air distribution tube, installed in the body of the impactor and communicated nd with its longitudinal Hbw hole.

In addition, in the impactor and the air distribution sleeve in parallel (the MAIN holes can be provided with additional holes, in which an additional air distribution tube is installed with axial movement, the additional hole with the hammer connected with its longitudinal hole, or the additional and main air distribution tubes are placed coaxially, moreover, the additional air distributor tube is placed with the possibility of displacement in the longitudinal hole of the impactor with possibility of reacting with the basic vozduhoraspredelitelnoy, tube having additional windows, and also due to the fact that the additional and the main air distribution tubes have a closed ends located in the longitudinal air distribution holes of the sleeve, executed through.

FIG. 1 shows a device with parallel installed air distribution and additional air distribution pipes in the rear position of the impactor, section; in fig. 2 - the same, with the front position of the drummer; in fig. 3 - a device in which the air distribution | gel and additional air distribution; The distribution tube is located coaxially, with the rear end of the additional air distribution tube located inside the air distribution tube, the forward position of the impactor; in fig. 4 - a device in which the air distribution and additional air distribution pipes are made with closed rear ends, and the longitudinal and additional longitudinal opening in the air distribution sleeve is made through.

A device for punching wells in the ground includes a housing 1, a hammer 2 having a through longitudinal hole 3, a ledge 4 and in the embodiment of FIGS. 1 and 2, an additional hole 5 communicated with the longitudinal hole 3, an air distribution sleeve 6 having a longitudinal hole 7, exhaust 8 and exhaust 9 channels, an additional hole 10, the main air distribution tube 11, there is a protrusion 1 2 and windows 13 and an additional air distribution tube 14, the internal cavity of which is connected with a through longitudinal hole 3 and The projection 15. The air distribution tube 11 is axially displaced in the longitudinal hole 3 of the striker and the longitudinal hole 7 of the air distribution sleeve 6. The additional air distribution tube 14 (FIG. 1) is axially displaced in the additional hole 5 of the impactor and coaxially with it. an additional hole 10 of the air-distribution sleeve 6, and in the walls of the additional air-distribution tube 1.4 made windows 16.

The additional air distribution tube 14 (FIGHT) is located in the longitudinal opening 3 of the striker coaxially with the air distribution pipe 11, in the walls of which additional windows 17 are formed. The air distribution 1-1 10 and the additional air distribution 14 tubes can be made with closed rear ends 18 (FIG. four). In this case, the longitudinal 7 and the optional 10 holes in the air distribution sleeve can be made through. The front end of the Drummer, together with the body, form the front chamber 19, and the rear end of the drummer and the inner surface of the air distribution sleeve 6 form the rear chamber 20.

It is possible to perform the device when the rear end of the additional air distribution tube 14 is located inside the air distribution tube 11 (FIG. 3).

The device works as follows.

Compressed air through the inlet channel 8 is supplied to the rear chamber 20. The drummer 2 begins to move forward with the front chamber 19 through

the longitudinal hole 5, the air distribution tube 11 (which remains during the movement of the striker

fixed), windows 13 and exhaust duct 9 are constantly in communication with the atmosphere.

At the end of the forward stroke of the firing pin 2, I will affect the ledges 4 on the projections

0 12 and 15, the air distribution tube 11 and the additional air distribution tube 14 move forward (Fig. 2) and strike the housing 1, as a result of which the device or the hammer element is inserted into the ground. With the front position of the air distribution 11 and the additional air distribution tube 14 (FIG. 1) of the air outlet window 0 of the distribution pipe 11 are closed by the walls of the longitudinal hole 7, and the airfoil 16 of the additional air distribution pipe 14 (or I of the air outlet 17 of the distribution air pipe 11) compressed air is opened through them, the internal cavity is additional air. distribution tube 14 and through the | - longitudinal hole 3 of the shock

0 ka 2 enters the front chamber 19, since the area of the firing pin on the side of the front chamber 19 is larger than its rod, and from the side of the back chamber 20, the drummer 2 starts to move backwards.

 The first part (L, Fig.2) of the return path of the impactor occurs at a constant inlet of compressed air into the front chamber under a pressure equal to the network one, and the second part (L, Fig.2)

Q under the action of expansion of compressed air in the front chamber 19 (on the way p, windows 13 and 16 are closed by the walls of the longitudinal holes 7 and 10). At the end of the reverse stroke, drummer 2 moves

5, the air distribution pipes 11 and 14 are rearward, with the front chamber 19 communicating with the atmosphere through window 11. Exhaust comes from the front chamber 19 and starts the stroke of the firing pin.

In this device, the compressed air is introduced into the front chamber through an additional air distribution tube 14, and the exhaust from the front chamber through an air distribution tube 11. This design allows the striker to carry out (through the air distributor 0

five

0U9.J

FIG. 2

Fi &

Claims (4)

1. DEVICE FOR PUNCHING WELLS IN THE SOIL, comprising a housing with a hammer placed therein, having a through longitudinal hole, an air distribution sleeve with a blind longitudinal hole, intake and exhaust channels, and an air distribution tube with windows and a protrusion arranged axially in the longitudinal hole of the hammer and air distribution sleeve, characterized in that, in order to increase the efficiency of the device, it is equipped with an additional air distribution tube, anovlennoy in the body of the hammer and reported its longitudinal bore. 2. The device according to claim 1, characterized in that in the drummer and the air distribution sleeve parallel to the main holes there are additional holes in which an additional air distribution tube is mounted with the possibility of axial movement, the additional hole in the hammer being in communication with its longitudinal hole. 3. The device according to claim 1, about t l and the fact that the additional and main air distributor; The nasal tubes are arranged coaxially, with <g the additional air distribution tube placed with the possibility of displacement in the longitudinal hole of the hammer and with the possibility of interaction with the main air distribution tube having additional windows. 4. The device according to paragraphs. 1 and 2, characterized in that the additional and main air distribution tubes have closed ends located in the longitudinal openings of the air distribution sleeve made through. SU „, 1404599 A1