WO2016026990A1 - Dispositif perforateur - Google Patents

Dispositif perforateur Download PDF

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Publication number
WO2016026990A1
WO2016026990A1 PCT/ES2014/070989 ES2014070989W WO2016026990A1 WO 2016026990 A1 WO2016026990 A1 WO 2016026990A1 ES 2014070989 W ES2014070989 W ES 2014070989W WO 2016026990 A1 WO2016026990 A1 WO 2016026990A1
Authority
WO
WIPO (PCT)
Prior art keywords
rod
housing
drilling
cylindrical
bearing
Prior art date
Application number
PCT/ES2014/070989
Other languages
English (en)
Spanish (es)
Inventor
Simon Asenjo JAIME
Original Assignee
Obras Subterraneas, S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Obras Subterraneas, S.A. filed Critical Obras Subterraneas, S.A.
Publication of WO2016026990A1 publication Critical patent/WO2016026990A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids

Definitions

  • the present invention aims at a drilling device, of the type used in work equipment for underground mining and whose scope of application is the drilling of soils and soft terrains, especially in those that drilling with most common methods of digging with water, and in the case of bolts where their reinforcement cannot be introduced simultaneously with the execution of the drilling holes themselves, as for example, in the case of self-drilling micro-piles.
  • the main components that make up a drilling system are among others:
  • the drilling equipment of the drilling machine or jumbo is generally composed of a set of hammers mounted on articulated arms of hydraulic drive for the execution of drilling work in the front. And a series of air generation equipment are located outside the tunnel, the transmission being made from this installation to the inside of the drilling machinery through a series of rubber hoses (by means of the joint connection of the mouth of the hose to the valve integrated in the outer casing of the new tool), guaranteeing the transmission of injection air, and thus, starting the operating system of the drilling tool.
  • the drilling therefore, becomes effective thanks to the broken-percussion of the hydraulic hammers, since the auger rotates continuously and impacts at the same time on the bottom of the drill. Therefore, the device presented here improves the performance of the drilling system, integrating between the linkage of the aforementioned machine and the hammer drill, since it allows both the transmission of mechanical energy to the ground and the drilling without affecting its bearing competition.
  • Said drilling device is characterized by comprising a cylindrical rod whose lower end is connected to the rotary motor of the rotary hammer or rotary hammer, and whose upper end is connected to a guide tube; and a housing comprising: an elbow connecting said housing with the mouth of an air injection hose; a central and internal chamber, joined to a plurality of metal rings and to retention elements that are integrated in the housing itself, said retention elements being configured to prevent the leakage of circulating injection air into the chamber; a first bearing in its rear part configured to transmit the rotation of the maneuver exerted; a double bearing in its front part; and where the housing and the rod are connected by: at least one circular thread covering the double bearing of the housing; a cylindrical body that holds the first bearing of the housing; and a threaded cylindrical washer that fixes the cylindrical body and which comprises a fixing screw.
  • the drilling device object of the present invention, is intended to be applied in boreholes of soils and soft soils (where drilling of the massif is not feasible by the most usual methods of water excavation), and in the case of bolts whose reinforcement cannot be introduced simultaneously with the drilling holes.
  • the air injection pressure necessary for the optimal operation of the device, will be determined by the geological characteristics of the terrain, which will generally range in a range between four and five bars.
  • the drilling device is presented as an optimal solution in those perforations where you have to resort to the introduction of bolts as an independent maneuver and separate from the execution of the drills in the rock mass, since in cases where the terrain have low cohesion (such as in sand or silt) or clay soils (susceptible to variations in their consistency in the presence of water), it is not feasible to resort to drilling the front, by injecting water, being the only way possible, attacking the ground through pressurized air injections.
  • FIG 1. It shows a view of the drilling device, object of the present invention.
  • FIG 2. Shows a view of the elements that make up the drilling device.
  • FIG 3. Shows a detailed view of the rear part of the housing (2), as part of the drilling device.
  • FIG 4. Shows a detailed view of the rod (1), as part of the drilling device.
  • FIG 5. Shows a side view of the piercing device.
  • FIG 6. Shows a detailed view of the front part of the housing (2), as part of the drilling device.
  • the piercing device object of the present specification, is characterized because it comprises a rod (1), which essentially constitutes the rotor sleeve of the drilling device; and an outer casing (2), through which the air is introduced into the inner chamber of the device, coupled to the rod (1) thanks to the presence of a first circular thread (3), which covers the double bearing (2e) present in the housing (2); a cylindrical body (4) that holds the bearing (2d) of the housing and finally a threaded cylindrical washer (5) that fixes the cylindrical body (4) and that has a fixing screw that avoids the possibility of said washer (5 ) can unscrew.
  • the rod (1) is an essentially cylindrical piece, whose function is to guarantee the operation of the device presented here, by its lower end (1 a) it is connected to the rotary motor of the drilling machine or hammer of percussion, generally by threading.
  • the rod (1) At its upper end (1 b) the rod (1) is connected to a guide-like tube or "auger tube", in the same way, at said upper end (1 b), the rod (1) has two grooves (1 c) that reduce the cylindrical section of the rod, and whose function is to facilitate the maneuver of disassembly of the drills or drilling bolts used, during use.
  • the rod (1) In its central zone (1 d), the rod (1) incorporates a plurality of holes (1 e), which cross the entire rod (1) and that fit with the air chamber (2a) located in the outer housing (2 ).
  • the outer shell (2) is the piece that guarantees both the protection of the internal mechanism of the system itself and the connection to the air injection hose, thanks to the presence of a metal elbow (6) integrated in the shell itself (2 ).
  • the housing (2) comprises a central chamber (2a), attached to a series of metal rings (2b) and to retaining elements (2c) that are integrated into the housing itself, so as to prevent air from Circulating injection into the chamber (2a) may be lost.
  • the housing (2) incorporates in its rear part, a first bearing (2d) that transmits the rotation of the maneuver exerted; while in its front part, it incorporates a double bearing (2e).
  • the housing (2) has two holes (2f), through which the grease necessary to lubricate the bearings (2d, 2e) is introduced and where, in a particular embodiment, said housing (2) in its part outside, it incorporates an elbow (6) that connects it with the mouth of the air injection hose.
  • the fixing screw of the cylindrical washer (5) is set counterclockwise, so that it fixes the coupling parts jointly during drilling.
  • the drilling machine or jumbo is the drilling equipment guided by an operator inside the cabin, which produces the effects of broken-percussion of the augers or bolts, which are the bars introduced into the ground provided with a drill at its end Of attack. Drilling is done through the machine's own arms, articulated elements that can take all positions and are moved by hydraulic jacks.
  • the device presented here is placed between the linkage of the drilling machine and the drilling motor, so that through the elbow integrated in the outer shell, the injection air is introduced.
  • This air passes inside the air chamber of the housing, through the four holes housed in the central sector of the rod, so that one of the ends of the aforementioned rod fits (through its front) with the hammer of the drilling machine through a cylindrical washer.
  • the rotational percussion movement generated by the drilling machine motor is transferred, then the air introduced is driven under pressure through the hollow auger (which rotates continuously), and from it, to the drill or drill head, which is the element that impacts the ground and transfers the mechanical energy generated by the system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne un dispositif perforateur caractérisé en ce qu'il comprend une tige (1) cylindrique dont l'extrémité inférieure (1a) est reliée au moteur de rotation de la machine et dont l'extrémité supérieure (1b) est reliée à un tube-guide; et un corps (2) qui comprend un coude (6) qui relie ledit corps (2) à l'ouverture d'un tuyau d'injection d'air, le corps (2) et la tige (1) étant reliés au moyen d'au moins un filet circulaire (3) recouvrant le roulement double (2e) du corps (2); un corps cylindrique (4) qui permet de fixer le premier roulement (2d) du corps (2); et une rondelle cylindrique (5) filetée qui permet de fixer le corps cylindrique (4) et qui comprend un boulon de fixation.
PCT/ES2014/070989 2014-08-19 2014-12-29 Dispositif perforateur WO2016026990A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201431233A ES2564247B1 (es) 2014-08-19 2014-08-19 Dispositivo perforador
ESP201431233 2014-08-19

Publications (1)

Publication Number Publication Date
WO2016026990A1 true WO2016026990A1 (fr) 2016-02-25

Family

ID=55350228

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2014/070989 WO2016026990A1 (fr) 2014-08-19 2014-12-29 Dispositif perforateur

Country Status (2)

Country Link
ES (1) ES2564247B1 (fr)
WO (1) WO2016026990A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703212A (en) * 1969-10-13 1972-11-21 Rock Fall Co Ltd Method of rock drilling and apparatus for use therein
US5322136A (en) * 1992-07-17 1994-06-21 Smith International, Inc. Air percussion drilling assembly
ES2056447T3 (es) * 1989-04-05 1994-10-01 Geissler & Kuper Gmbh Acoplamiento de conexion para taladradora con aspiracion de polvo.
EP1589187A1 (fr) * 2004-04-23 2005-10-26 Chuan Home Machinery Co., Ltd. Dispositif de forage et d'excavation de sols rocailleux
US20110024196A1 (en) * 2009-07-30 2011-02-03 Allouche Erez N Steerable ground piercing tools

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703212A (en) * 1969-10-13 1972-11-21 Rock Fall Co Ltd Method of rock drilling and apparatus for use therein
ES2056447T3 (es) * 1989-04-05 1994-10-01 Geissler & Kuper Gmbh Acoplamiento de conexion para taladradora con aspiracion de polvo.
US5322136A (en) * 1992-07-17 1994-06-21 Smith International, Inc. Air percussion drilling assembly
EP1589187A1 (fr) * 2004-04-23 2005-10-26 Chuan Home Machinery Co., Ltd. Dispositif de forage et d'excavation de sols rocailleux
US20110024196A1 (en) * 2009-07-30 2011-02-03 Allouche Erez N Steerable ground piercing tools

Also Published As

Publication number Publication date
ES2564247A1 (es) 2016-03-21
ES2564247B1 (es) 2016-12-28

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