WO2016026990A1 - Drilling device - Google Patents

Drilling device 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
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WO
WIPO (PCT)
Prior art keywords
rod
housing
drilling
cylindrical
bearing
Prior art date
Application number
PCT/ES2014/070989
Other languages
Spanish (es)
French (fr)
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/en

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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.

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  • 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

Drilling device that is characterized in that it comprises a cylindrical rod (1), the lower end (1a) of which is connected to the rotating motor of the machine and the upper end (1b) of which is connected to a guide tube; and a casing (2) that comprises an elbow (6) that connects said casing (2) to the nozzle of an air-injection hose, and wherein the casing (2) and the rod (1) are joined by means of at least one circular thread (3) covering the double roller bearing (2e) of the casing (2); a cylindrical body (4) that secures the first roller bearing (2d) of the casing (2); and a threaded cylindrical washer (5) that fastens the cylindrical body (4) and comprises a fastening screw.

Description

DISPOSITIVO PERFORADOR  PUNCHING DEVICE
Objeto de la invención La presente invención tiene como objeto un dispositivo perforador, del tipo de los empleados en equipos de trabajo para minería subterránea y cuyo ámbito de aplicación es el barrenado de suelos y terrenos blandos, especialmente en aquellos que no es factible la perforación con métodos de excavación con agua más habituales, y para el caso de pernos en donde su armadura no pueda introducirse simultáneamente con la ejecución de los propios taladros de perforación, como por ejemplo, en el caso de los micro-pilotes auto-perforantes. OBJECT OF THE INVENTION 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.
Antecedentes de la invención Background of the invention
En la actualidad, los principales componentes que conforma un sistema de perforación, son entre oíros: At present, the main components that make up a drilling system are among others:
- la perforadora o jumbo, como fuente de energía mecánica;  - the drilling machine or jumbo, as a source of mechanical energy;
- el varillaje, para la transmisión de la energía mecánica;  - the linkage, for the transmission of mechanical energy;
- la broca o cabeza de perforación, herramienta que transmite dicha energía mecánica al terreno;  - the drill bit or drill head, a tool that transmits said mechanical energy to the ground;
- y finalmente, el barrido-evacuación del detrito producido.  - and finally, the sweep-evacuation of the debris produced.
El equipo de perforación de la máquina perforadora o jumbo, está compuesto generalmente por un conjunto de martillos montados sobre brazos articulados de accionamiento hidráulico para la ejecución de los trabajos de perforación en el frente. Y una serie de equipos de generación de aire, se sitúan en el exterior del túnel, efectuándose la transmisión desde esta instalación al interior de la maquinaria de perforación a través de una serie de mangueras de goma (mediante la unión solidaria de la boca de la manguera a la válvula integrada en la carcasa exterior del nuevo útil), garantizando la transmisión de aire de inyección, y consiguiendo así, el arranque del sistema de funcionamiento del útil perforador. 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.
La perforación, por tanto, se hace efectiva gracias a la roto-percusión de los martillos hidráulicos, ya que la barrena gira de forma continua e impacta al mismo tiempo sobre el fondo del taladro. Por ello, el dispositivo aquí presentado, mejora las prestaciones del sistema perforador, integrándose entre el varillaje de la citada máquina y el martillo de perforación, ya que posibilita tanto la transmisión de energía mecánica al terreno como el realizar la perforación sin afectar a su competencia portante. Descripción de la invención 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. Description of the invention
El dispositivo perforador, objeto de la presente invención, solventa los problemas descritos en el estado de la técnica. Dicho dispositivo perforador, está caracterizado por comprender un vástago cilindrico cuyo extremo inferior está conectado con el motor de rotación de la máquina perforadora o martillo de roto-percusión, y cuyo extremo superior está conectado con un tubo-guía; y una carcasa que comprende: un codo que conecta dicha carcasa con la boca de una manguera de inyección de aire; una cámara central e interna, unida a una pluralidad de anillos metálicos y a unos elementos de retención que se integran en la propia carcasa, estando dichos elementos de retención configurados para evitar la fuga del aire de inyección circulante en la cámara; un primer rodamiento en su parte trasera configurado para transmitir el giro de la maniobra ejercida; un rodamiento doble en su parte delantera; y donde la carcasa y el vástago se encuentran unidos mediante: al menos una rosca circular cubriendo el rodamiento doble de la carcasa; un cuerpo cilindrico que sujeta el primer rodamiento de la carcasa; y una arandela cilindrica roscada que fija el cuerpo cilindrico y que comprende un tornillo fijador. The drilling device, object of the present invention, solves the problems described in the state of the art. 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.
Gracias a su especial diseño, el dispositivo perforador, objeto de la presente invención, está destinado a ser aplicado en barrenados de suelos y terrenos blandos (en los que no es factible la perforación del macizo mediante los métodos más habituales de excavación con agua), y para el caso de pernos cuya armadura no puede introducirse simultáneamente junto con los taladros propios de la perforación. Thanks to its special design, 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.
La presión de inyección de aire, necesaria para el óptimo funcionamiento del dispositivo, vendrá determinada por las características geológicas del terreno, que oscilarán generalmente en un rango entre los cuatro y cinco bares. 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.
Del mismo modo, para su funcionamiento óptimo el dispositivo, necesitará del empleo de grasa que garanticen la lubricación de los rodamientos, agua que refrigere el motor de la maquina perforadora y aire, mediante un generador conectado con el dispositivo. Por tanto, el dispositivo perforador, se presenta como una solución óptima en aquellos perforaciones donde se tenga que recurrir a la introducción de pernos como maniobra independiente y separada de la ejecución de los taladros en el macizo rocoso, puesto que en los casos donde los terrenos tengan poca cohesión (como por ejemplo, en arenas o limos) o terrenos arcillosos (susceptibles a variaciones en su consistencia ante la presencia de agua), no es factible recurrir a la perforación del frente, mediante la inyección de agua, siendo el único modo posible, el atacar el terreno a través de inyecciones de aire a presión. In the same way, for optimal operation of the device, you will need the use of grease that guarantees the lubrication of the bearings, water that cools the engine of the drilling machine and air, by means of a generator connected to the device. Therefore, 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.
A lo largo de la descripción y las reivindicaciones la palabra "comprende" y sus variantes no pretenden excluir otras características técnicas, aditivos, componentes o pasos. Para los expertos en la materia, otros objetos, ventajas y características de la invención se desprenderán en parte de la descripción y en parte de la práctica de la invención. Los siguientes ejemplos y dibujos se proporcionan a modo de ilustración, y no se pretende que restrinjan la presente invención. Además, la presente invención cubre todas las posibles combinaciones de realizaciones particulares y preferidas aquí indicadas. Throughout the description and the claims the word "comprises" and its variants are not intended to exclude other technical characteristics, additives, components or steps. For those skilled in the art, other objects, advantages and features of the invention will be derived partly from the description and partly from the practice of the invention. The following examples and drawings are provided by way of illustration, and are not intended to restrict the present invention. In addition, the present invention covers all possible combinations of particular and preferred embodiments indicated herein.
Breve descripción de las figuras Brief description of the figures
A continuación se pasa a describir de manera muy breve una serie de dibujos que ayudan a comprender mejor la invención y que se relacionan expresamente con una realización de dicha invención que se presenta como un ejemplo no limitativo de ésta. A series of drawings that help to better understand the invention and that expressly relate to an embodiment of said invention which is presented as a non-limiting example thereof is described very briefly below.
FIG 1 . Muestra una vista del dispositivo perforador, objeto de la presente invención. FIG 1. It shows a view of the drilling device, object of the present invention.
FIG 2. Muestra una vista de los elementos que conforman el dispositivo perforador. FIG 2. Shows a view of the elements that make up the drilling device.
FIG 3. Muestra una vista en detalle de la parte trasera de la carcasa (2), como parte del dispositivo perforador. FIG 3. Shows a detailed view of the rear part of the housing (2), as part of the drilling device.
FIG 4. Muestra una vista en detalle del vástago (1 ), como parte del dispositivo perforador. FIG 5. Muestra una vista lateral del dispositivo perforador.  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. Muestra una vista en detalle de la parte delantera de la carcasa (2), como parte del dispositivo perforador.  FIG 6. Shows a detailed view of the front part of the housing (2), as part of the drilling device.
Realización preferente de la invención Preferred Embodiment of the Invention
En las figuras adjuntas se muestra una realización preferida de la invención. Más concretamente, el dispositivo perforador, objeto de la presente memoria, está caracterizado porque comprende un vástago (1 ), que constituye esencialmente la camisa rotor del dispositivo de perforación; y una carcasa exterior (2), por donde se introduce el aire a la camia interior del dispositivo, acoplada al vástago (1 ) gracias a la presencia de una primera rosca circular (3), que cubre el rodamiento doble (2e) presente en la carcasa (2); un cuerpo cilindrico (4) que sujeta el rodamiento (2d) de la carcasa y finalmente una arandela cilindrica (5) roscada que fija el cuerpo cilindrico (4) y que cuenta con un tornillo fijador que evita la posibilidad de que dicha arandela (5) pueda desenroscarse. A preferred embodiment of the invention is shown in the attached figures. More specifically, 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.
El vástago (1 ), es una pieza esencialmente cilindrica, cuya función es garantizar el funcionamiento del dispositivo aquí presentado, por su extremo inferior (1 a) se conecta con el motor de rotación de la máquina perforadora o martillo de roto-percusión, generalmente mediante roscado. 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.
En su extremo superior (1 b) el vástago (1 ), se conexiona con un tubo a modo de guía o "tubo barrena", del mismo modo, en dicho extremo superior (1 b), el vástago (1 ) presenta dos hendiduras (1 c) que reducen la sección cilindrica del vástago, y cuya función es la facilitar la maniobra de desmontaje de los barrenos o pernos de perforación empleados, durante su uso. En su zona central (1 d), el vástago (1 ) incorpora una pluralidad de orificios (1 e), que atraviesan todo el vástago (1 ) y que encajan con la cámara de aire (2a) situada en la carcasa exterior (2). 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. 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 ).
La carcasa exterior (2), es la pieza que garantiza tanto la protección del mecanismo interno del propio sistema como la conexión a la manguera de inyección de aire, gracias a la presencia de un codo (6) metálico integrado en la propia carcasa (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 ).
Internamente, la carcasa (2) comprende una cámara central (2a), unida a una serie de anillos metálicos (2b) y a unos elementos de retención (2c) que se integran en la propia carcasa, de tal forma que eviten que el aire de inyección circulante en la cámara (2a) pueda perderse. Internally, 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.
Del mismo modo, la carcasa (2) incorpora en su parte trasera, un primer rodamiento (2d) que transmite el giro de la maniobra ejercida; mientras que en su parte delantera, incorpora un rodamiento doble (2e). En su parte exterior, la carcasa (2) cuenta con dos orificios (2f), por donde se introduce la grasa necesaria para lubricar los rodamientos (2d, 2e) y donde, en una realización particular, dicha carcasa (2) en su parte exterior, incorpora un codo (6) que la conecta con la boca de la manguera de inyección de aire. In the same way, 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). In its outer part, 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.
En una realización preferida, el tornillo fijador de la arandela cilindrica (5) se encuentra ajustado en sentido contrario a las agujas del reloj, de tal forma, que fije solidariamente las piezas de acoplamiento durante el barrenado. In a preferred embodiment, the fixing screw of the cylindrical washer (5) is set counterclockwise, so that it fixes the coupling parts jointly during drilling.
La máquina perforadora o jumbo es el equipo de perforación guiado por un operario en el interior de la cabina, que produce los efectos de roto-percusión de las barrenas o pernos, que son las barras introducidas en el terreno provistas de una broca en su extremo de ataque. El barrenado se realiza a través de los propios brazos de la máquina, elementos articulados que pueden adoptar todas las posiciones y que son movidos por gatos hidráulicos. 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.
El dispositivo aquí presentado, se coloca entre el varillaje de la máquina perforadora y el motor de perforación, de forma que a través del codo integrado en la carcasa exterior, se introduce el aire de inyección. Este aire, pasa al interior de la cámara de aire de la carcasa, por los cuatro orificios alojados en el sector central del vástago, de forma que unos de los extremos del citado vástago encaje (por su parte delantera) con el martillo motor de la máquina perforadora a través de una arandela cilindrica. Al rodamiento doble (2e) que incorpora la carcasa (2), se le transfiere el movimiento de roto- percusión generado por el motor de la máquina perforadora, a continuación, el aire introducido es impulsado a presión a través de la barrena hueca (que gira de forma continua), y desde ella, a la broca o cabeza de perforación, que es el elemento que impacta con el terreno y transfiere la energía mecánica generada por el sistema. 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. To the double bearing (2e) that incorporates the housing (2), 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.

Claims

REIVINDICACIONES
1 . - Dispositivo perforador conectado con una máquina perforadora o martillo de roto- percusión y que se caracteriza porque comprende: one . - Drilling device connected to a drilling machine or rotary hammer and characterized in that it comprises:
a) un vástago (1 ) cilindrico cuyo extremo inferior (1 a) está conectado con el motor de rotación de la máquina perforadora o martillo de roto-percusión, y cuyo extremo superior (1 b) está conectado con un tubo-guía; y  a) a cylindrical rod (1) whose lower end (1 a) is connected to the rotary motor of the rotary hammer or rotary hammer, and whose upper end (1 b) is connected to a guide tube; Y
b) una carcasa (2) que comprende:  b) a housing (2) comprising:
- un codo (6) que conecta dicha carcasa (2) con la boca de una manguera de inyección de aire;  - an elbow (6) connecting said housing (2) with the mouth of an air injection hose;
- una cámara central (2a) e interna, unida a una pluralidad de anillos metálicos (2b) y a unos elementos de retención (2c) que se integran en la propia carcasa (2), estando dichos elementos de retención (2c) configurados para evitar la fuga del aire de inyección circulante en la cámara (2a) ;,  - a central (2a) and internal chamber, connected to a plurality of metal rings (2b) and to retention elements (2c) that are integrated in the housing itself (2), said retention elements (2c) being configured to avoid leakage of circulating injection air into the chamber (2a);
- un primer rodamiento (2d) en su parte trasera configurado para transmitir el giro de la maniobra ejercida;  - a first bearing (2d) at its rear part configured to transmit the rotation of the maneuver exerted;
- un rodamiento doble (2e) en su parte delantera;  - a double bearing (2e) in its front part;
c) y donde la carcasa (2) y el vástago (1 ) se encuentran unidos mediante:  c) and where the housing (2) and the rod (1) are connected by:
- al menos una rosca circular (3) cubriendo el rodamiento doble (2e) de la carcasa (2) ;  - at least one circular thread (3) covering the double bearing (2e) of the housing (2);
- un cuerpo cilindrico (4) que sujeta el primer rodamiento (2d) de la carcasa - a cylindrical body (4) that holds the first bearing (2d) of the housing
(2) ; y (2) ; Y
- una arandela cilindrica (5) roscada que fija el cuerpo cilindrico (4) y que comprende un tornillo fijador.  - a threaded cylindrical washer (5) that fixes the cylindrical body (4) and which comprises a fixing screw.
2. - Dispositivo perforador de acuerdo con la reivindicación 1 en donde la unión del vástago (1 ) con el motor de rotación de la máquina perforadora se realiza mediante roscado. 2. - Drilling device according to claim 1 wherein the union of the rod (1) with the rotation motor of the drilling machine is carried out by means of threading.
3. - Dispositivo de acuerdo con cualquiera de las reivindicaciones 1 -2 en donde el vástago (1 ) presenta dos hendiduras (1 c) que reducen la sección cilindrica del vástago, y cuya función es la facilitar la maniobra de desmontaje de los barrenos o pernos de perforación empleados, durante su uso. 3. - Device according to any of claims 1 -2 wherein the rod (1) has two slits (1 c) that reduce the cylindrical section of the rod, and whose function is to facilitate the maneuver of disassembly of the holes or drilling bolts used, during use.
4. - Dispositivo de acuerdo con cualquiera de las reivindicaciones 1 -3 en donde el vástago (1 ) en su zona central (1 d) incorpora una pluralidad de orificios (1 e), que atraviesan todo el vástago (1 ) y que encajan con la cámara de aire (2a) situada en la carcasa exterior (2). 4. - Device according to any one of claims 1 -3 wherein the rod (1) in its central zone (1 d) incorporates a plurality of holes (1 e), which pass through all the rod (1) and that fit with the air chamber (2a) located in the outer casing (2).
5. - Dispositivo de acuerdo con cualquiera de las reivindicaciones 1 -4 en donde la carcasa (2) incorpora dos orificios (2f), por donde se introduce la grasa necesaria para lubricar los rodamientos (2d, 2e). 5. - Device according to any of claims 1 -4 wherein the housing (2) incorporates two holes (2f), through which the grease necessary to lubricate the bearings (2d, 2e) is introduced.
6. - Dispositivo perforador de acuerdo con cualquiera de las reivindicaciones anteriores en donde la arandela cilindrica (5) se encuentra ajustada en sentido contrario a las agujas del reloj. 6. - Drilling device according to any of the preceding claims wherein the cylindrical washer (5) is set counterclockwise.
PCT/ES2014/070989 2014-08-19 2014-12-29 Drilling device WO2016026990A1 (en)

Applications Claiming Priority (2)

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ES201431233A ES2564247B1 (en) 2014-08-19 2014-08-19 PUNCHING DEVICE
ESP201431233 2014-08-19

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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 (en) * 1989-04-05 1994-10-01 Geissler & Kuper Gmbh CONNECTION COUPLING FOR DUST VACUUM DRILLING MACHINE.
EP1589187A1 (en) * 2004-04-23 2005-10-26 Chuan Home Machinery Co., Ltd. Bedrock drilling and excavating apparatus
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 (en) * 1989-04-05 1994-10-01 Geissler & Kuper Gmbh CONNECTION COUPLING FOR DUST VACUUM DRILLING MACHINE.
US5322136A (en) * 1992-07-17 1994-06-21 Smith International, Inc. Air percussion drilling assembly
EP1589187A1 (en) * 2004-04-23 2005-10-26 Chuan Home Machinery Co., Ltd. Bedrock drilling and excavating apparatus
US20110024196A1 (en) * 2009-07-30 2011-02-03 Allouche Erez N Steerable ground piercing tools

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ES2564247B1 (en) 2016-12-28

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