SU1240886A1 - Rock drill with hole-flushing arrangement - Google Patents

Description

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This invention relates to the mining industry, in particular to hydro-turbine drills.

The aim of the invention is to increase the reliability of the drill and reduce the size by increasing the compactness.

FIG. 1 shows a mountain drill with a device for drilling a hole in a version for manually drilling a hole, a longitudinal section; , in fig. 2 .- node t in fig, 1,

A drill with a flushing device includes a housing 1, a hollow spindle 2, a hollow drill rod 3, an adjustable hydraulic resistance 4 and a driving immersion hydro-turbine 5 with a cover 6, an impeller 7 with a hollow hub 8 on the shaft 9 connected by means of a reducing mechanical transmission 10c pol1l4 spindle t lem 2,

The shaft 9 is made polm and communicated hydraulically with the cavity of the spindle 2, it is also communicated with the cavity II in the hub 8 with the exit of the impeller 7, the crankshaft 6 is made deaf and contains a cone-shaped fairing 12, which is installed with its tip along the axis of the shaft 9 and facing the cavity 11 in. your place 8,

The spindle 2 is mounted coaxially to the shaft 9 with the axial clearance l between the ends of the spindle and the shaft. These ends are placed in the sealing by seals 13 of chamber 14 of housing 1, Chamber 14 is connected by additional hydroline by sleeve 15 of the atmosphere, and the gap. It is sufficient for the passage of water into this hose with a low hydroresistance, which ensures the normal operation of the turbine 5 with a covered cavity of spindle 2,

Adjustable hydraulic resistance is provided in the form of a rod 16 with a needle 17, the rod is passed through the cover 6 and through the cavity of the shaft 9 and the spindle 2 is inserted into the cavity with a gap G that ensures no friction between the needle 17 and the spindle 2, the rod 16 has shoulders 18 , between which and the cap 6 is installed, the spring 19 is compressed. Shoulders are installed at the level of the handle 20 of the drill. The rod 16 may have additional support in the chamber 14,

To one of them, a handle 20 drills a water hose along a flexible hose.

40886

the initial pressure. In this handle there is a locking device (not shown, by which the passage of water to the impeller is opened

5 7 radial drive turbines 5, On the blades of the impeller 7, the hydraulic energy is converted into mechanical energy of the rotating shaft 9. Driving moment from the working

 On wheels 7, shaft 9 is transmitted through

The hub 8, which is connected to the work-. chimon wheel and shaft hard. The driving moment from shaft 9 to spindle 2 and further to drill rig 3 transmits 15 by means of mechanical transmission 10. Waste water is guided by fairing 12 kryshki 6 through cavity 11 of hub 8 into shaft cavity 9, the output of which is in cam. , compacted with seals 13, it simultaneously enters the drain through sleeve 15 into the cavity of spindle 2 and further into the floor of the drill rod 3 and into the hole, With etrm

25 needle 17 retracted spring 19 from torus

the spindle does not resist the movement of water into the cavity of the latter. For a hand tool, the presence of sleeve 15 is necessarily so

30 as the turbine 5 consumes substantially more water flow than is required for the drill and which can provide the flow area of the drill rod 3, for any other

35 gauge (non-manual) drilling tools with a large cross-section of the channel of the bow rod 15 and the hydraulic resistance 4 may be absent.

When drilling rebel holes at the time of drilling with a hand drill, turn off the water supply to the hole by means of an electrical resistance 4, by pushing the shoulders 18, the rod is moved 16 seconds. the needle 17 along the axis of the shaft 9, compressing the spring -19; The needle intersects the cavity of the spindle 2 with a gap S sufficient to allow the spindle to rotate without rubbing the needle. All water that has worked in the turbine 50 is diverted from chamber 14 to the soil along sleeve 15, at the end of the slaughter. Rivani, t, e, after sealing

The mouth of the hole Or another device, the shoulders 18 are released, and the time is 55 yes simultaneously to the drain through the sleeve 15 and into the hole.

Thus, the described product that does not have an outer sleeve is flushed.

3 12408864

The flushing clutch and the crane have a higher reliability compared to flushing, more compact and more familiar with the known ones.

18

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F1L, /

FIG. 2

Claims (5)

1. MOUNT DRILL WITH A WASHER FOR WASHING THE BURNING, including a body, a hollow spindle, a hollow drill rod, an adjustable hydraulic resistance and a drive hydraulic turbine with a cover and an impeller with a hollow hub on the shaft, a joint with a hollow spindle and a hole In addition, in order to increase operational reliability and reduce overall dimensions by increasing compactness, the turbine shaft is hollow, and the turbine drain line is hydraulically connected to the spindle cavity through an al-hydro turbine. 2. The drill bit according to Claim. 1, l and m of a Yusch h e e i with the fact that the drill · chamber formed in the housing, and the spindle shaft ¹ INSTALLS tanovleny coaxially with their end faces locate in a chamber with axial clearance and, with hydraulic communication between their cavities. 3. A drill according to paragraphs G and 2, characterized in that, in order to extend the area of its use to the hand tool for drilling rebellious holes, the chamber in which the ends of the shaft and the pin are placed is in communication with the atmosphere, ape -, _{Q the} adjustable hydraulic resistance <g is placed in the same chamber in front of the spindle with the possibility of overlapping% of the input channel of the spindle. Λ 4. The drill according to claims 1 to 3, with the proviso that the adjustable hydraulic resistance is made in the form of a spring-loaded rod with a conical part, placed in the cavity of the turbine shaft coaxially with the spindle and with the possibility of placing the conical part rod -in the spindle cavity to regulate its bore. initial pressure. This handle contains a locking device (not shown), with which open the passage of water to the impeller 5 7 of the drive radial hydraulic turbine 5. On the blades of the impeller 7, the hydraulic energy is converted into the mechanical energy of the rotating shaft 9. The driving moment from the impeller of the impeller 7 to the shaft 9 is transmitted through the hub 8, which is rigidly connected to the impeller and the shaft. The driving moment from the shaft 9 to the spindle 2 and then to the drill rod 3 is transmitted15 by means of a mechanical transmission 10. The spent iodine is guided by the fairing 12 of the cover 6 through the cavity 11 of the hub 8 into the cavity of the shaft 9, leaving it in the chamber 20 ru 14 of the housing Г, sealed with seals 13, it enters the drain at the same time along the sleeve. 15 into the cavity of the spindle 2 and then into the cavity of the drill rod 3 and into the hole. In this case, the 25th needle 17 is retracted by the spring 19 from the end face of the spindle and does not resist the movement of the WATER! into the cavity of the latter. For a hand tool, a sleeve 15 is necessary, since 30 turbine 5 consumes significantly more water than is required for washing a hole and which can provide a through section of the drill pipe 3. For any other 35 of this (non-manual) · drilling tool with a large cross section the channel of the boom of the rod rod sleeve 15 and the hydraulic resistance 4 may be absent. When drilling rising holes at the time of drilling with a hand drill, the water supply to the hole is turned off by means of hydraulic resistance 4. To do this, push the shoulders 18 to move the rod 16 with the needle 17 along the axis of the shaft 9, compressing the spring Ί9. The needle overlaps the cavity of the spindle 2 with a gap tS sufficient for the spindle to rotate without friction against the needle. All waste water in the turbine 50 is discharged from the chamber 14 to the soil along the sleeve 15. At the end of the drilling, i.e. after sealing the mouth of the borehole with that Or another device, the shoulders 18 are released, and water 55 simultaneously enters the drain along the sleeve 15 of the willow hole. Thus, the described product that does not have an external flushing sleeve,