SU37659A1 - Turbodrill - Google Patents

Description

The well-known turbo-drill Kapelyushnikov works under difficult conditions, since it is equipped with a gear that is corroded by a clay mortar.

In the present invention, the aim is to eliminate these drawbacks, since there are no transmission parts in the turbine.

In the schematic drawing of FIG. 1 shows a longitudinal section of a turbo-drill; FIG. 2 and 3 is a transverse cut along the line ab of FIG. 1 at two different positions of the piston 22; FIG. 4 and 5 is a cross-section along the line cd of FIG. 1 at two different piston and spool positions.

The device of the proposed turbodrill is as follows. In the casing 1 on ball bearings 2 and 3 vrah, there is a hollow shaft 4. Inside the shaft there is a partition 5 through which the channel 6 passes, having the upper part closed, and the lower one leaving the partition, open. At the exit point, channel 6 is separated from cavities 7 and 8. Cavity 7 has a connection through holes 9 and 10 with pipes and with a pump that feeds water or mud under pressure. Cavity 8 has a soobsh, ep11e downhole and

(13)

day surface through the annulus. In the interval between partitions 11 and 12 on the shaft sits the spool 13, which fits tightly both to the shaft 4 and to the side walls of the cylinder 14, as well as to the partitions 11 and 12. The spool has gland seals 15, 15. The hollow shaft 4 has a widening in the form of a sector-shaped piston 22, sliding its arc along the inner surface of the cylinder 14. Zolotn 1k 13 is a hollow bushing with a cut sector. Inside there are three partitions, of which the middle 16 is solid, and the extreme 17, 17 are with a hole. Two windows 18, 18 are made on the wall, the slider, along the shaft. The spool 13 at the exit of the partition 12 at the bottom passes into the sleeve 19, where on the tide a pawl of the pawl 20 is fastened, which rests on the teeth of the ratchet 21 fixedly attached to the casing 1. Due to the ratchet device, the spool can only move clockwise.

Shaft 4 has three windows cut to the same height as in the spool.

Turbobur works as follows. The pressurized fluid enters the inside of the shaft and through the matching

The shaft and spool windows (Fig. 2) enter the spool. The fluid pressure will be transmitted to the wall 16 of the spool and Yorschnk) as the zolitnik 13 rests with its dog in the ratchet crown 21 and does not have reverse movement, then the piston 22 will move under the pressure.

This movement will continue all the way into the opposite wall of the spool. In this case, the windows of the shaft 4 connected to the piston 22 will move relative to the windows of the spool 13 and will occupy the position indicated in FIG. 3. In this case, half of the right, nei.Ekorki 15 communicates with the low-pressure cavity 8, and the left with the high-pressure cavity 7. Since the piston with the bit has more weight and inertia than the spool, under pressure, the spool will move relative to the piston to the position indicated in FIG. 2. The dog will jump over the ratchet and again uproot when the right side of the spool is in communication with the high pressure cavity. The piston will move again, and so on. Since the piston with a hollow shaft and chisel has inertia, its movement cannot occur in jerks in the position indicated in FIG. 3, the spool will be fascinated for some time by moving the piston, and then the spool will run over and the windows will overlap. The fluid, located w, and c on both sides of the partition 17, will soften the blows., In the case of the capture of the bit by the rock in the intermediate position of the piston, i.e. when the windows of the hall and the spool are closed, the engine cannot be pushed, en and must be lifted from the well. The asymmetrical design of the engine makes it easy to eliminate this inconvenience;

for this, a second cylinder with its spool and piston offset from the first Ø is equal in series with the first and equal to the width of the window

In this case, if the first piston stopped in a dead position, the second one takes up the working position and vice versa.

 when the bit is released, the engine from any position will start to move again. The piston of the second qi. Indra may not be displaced, but it may be mixed, only the valve.

All the details of the second cylinder of FIG. (4 and 5) repeat: s, CAVITY 7 and 8 are sheathed for both cylinders.

Dvigatel.l can work with water, mud and air.

  . l.:.

 -Lending the invention.

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A turbodrill, which is characterized by the use of a void, resting on ball bearings 2 and 3, a shaft 4, equipped with an octopus piston 22 and three windows 18 and divided longitudinally into two sector-like plostlets 7 and 8, of which the cavity 7 has through apertures 10 in the shaft and the holes 9 in the upper partition of the casing 1 are connected to the injection pump, and the cavity 8 has a connection with the borehole through the opening in the partition 5 and the lower blade of the shaft 4, further, in order to pivot the shaft 4 and the bit attached to it, and the shaft is movably mounted There are two windows 18, a spool 13, equipped with three radial partitions — splen 16 and with windows 17 and having a sleeve 19 below the partition 12, carrying a paddle dog 20 abutting the stationary gear wheel 21.

Fig1.

Fig 2