EP3415708B1 - Dispositif de forage - Google Patents

Dispositif de forage Download PDF

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Publication number
EP3415708B1
EP3415708B1 EP18160727.6A EP18160727A EP3415708B1 EP 3415708 B1 EP3415708 B1 EP 3415708B1 EP 18160727 A EP18160727 A EP 18160727A EP 3415708 B1 EP3415708 B1 EP 3415708B1
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EP
European Patent Office
Prior art keywords
axis
drilling
rotation
hydraulic cylinder
ramp
Prior art date
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Application number
EP18160727.6A
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German (de)
English (en)
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EP3415708A1 (fr
Inventor
Dipl.-Wi.-Ing. Dietmar JENNE
Roman GRABER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Terra AG fuer Tiefbautechnik
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Terra AG fuer Tiefbautechnik
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Publication of EP3415708A1 publication Critical patent/EP3415708A1/fr
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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
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E21B15/04—Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/046—Directional drilling horizontal drilling

Definitions

  • the invention relates to a drilling device, in particular for directional horizontal drilling.
  • a drilling device is also referred to as a horizontal drilling device.
  • the drilling device has a chassis and a drilling ramp.
  • the drilling ramp is arranged pivotably relative to the chassis to adjust an angle of inclination between the drilling ramp and the soil or an angle of inclination between the drilling ramp and the chassis.
  • a drill head arranged at the tip of a rod is inserted into the soil and guided through the soil at a desired depth and with a desired course.
  • Such a horizontal earth drilling process is also referred to as horizontal directional drilling (HDD) process.
  • HDD horizontal directional drilling
  • Horizontal drilling devices are known in which a rod composed of several rod sections is inserted into the ground at a starting point with the help of the horizontal drilling device.
  • the horizontal drilling device can introduce flushing fluid into the hollow rod at high pressure, which then emerges from the drill head at high pressure.
  • a borehole is drilled into the ground due to the high pressure of the flushing fluid and the hard metal teeth of the drill head.
  • the drilling ramp and chassis are connected via a single joint.
  • a base plate arranged on the front part of the drilling ramp and the chassis of the drilling device contact the earth's surface.
  • the chassis on the base plate side is raised end from the earth's surface.
  • the chassis is either tilted or it is simultaneously raised from the ground by an opposite support ramp behind the chassis on the side facing away from the base plate, so that the chassis itself is arranged parallel to the surface of the earth.
  • the drilling device loses friction with the earth's surface, so that the drilling device is no longer as stable on the earth's surface as when the chassis comes into direct contact with the surface.
  • a known possibility of enabling ground contact of the chassis at different angles of inclination of the drilling ramp is to connect the drilling ramp to the chassis via a single joint, but at the same time to arrange it so that it can be moved longitudinally.
  • this has the disadvantage that on particularly flat slopes the drilling ramp protrudes very far beyond the chassis, so that a very large footprint is required for this drilling device. This space is often not available, especially when space is limited in inner cities.
  • document GB 1 496 568 A discloses a drilling device in which a drilling ramp can be arranged at different angles of inclination to the ground.
  • this device has neither a chassis nor a contact area for supporting the drilling ramp on the ground.
  • the object of the invention is to provide a drilling device in which the inclination of the drilling ramp can be adjusted in such a way that contact of the chassis is possible even with different inclinations of the drilling ramp. It is therefore desired that the drilling ramp and/or a base plate forming the front part of the drilling ramp and the chassis contact the earth's surface with as many inclinations of the drilling ramp as possible.
  • a pivotable arm in particular a lever arm, is provided, the first end of which is rotatably connected to the chassis about a first axis of rotation and the second end of which is rotatably connected to the drilling ramp about a second axis of rotation
  • this can be achieved in particular with an inclination adjustment of the drilling ramp Drilling ramp can be moved on a circular path around the first axis of rotation, so that both the distance to the chassis and the position in the longitudinal direction of the Chassis can be changed so that the drilling ramp does not have to be positioned below the chassis, both at flat entry angles and at steep entry angles. This means that the chassis does not have to be raised, even at steep entry angles.
  • the drilling ramp is preferably arranged pivotably relative to the chassis for adjusting an angle of inclination between the drilling ramp and the soil or an angle of inclination between the drilling ramp and the chassis.
  • the angle of inclination or entry angle is adjusted by pivoting the pivotable arm with the aid of the first hydraulic cylinder and additionally by pivoting the drilling ramp about the second axis of rotation with the aid of the second hydraulic cylinder.
  • the device has a control unit for controlling the first hydraulic cylinder and for controlling the second hydraulic cylinder.
  • This makes it easy to set a desired inclination of the drilling ramp to the chassis or of the drilling ramp to the ground.
  • the control unit can be used to simultaneously control the first hydraulic cylinder and the second hydraulic cylinder, so that a simple representation of the angle of inclination is possible.
  • the chassis, the lever, the drilling ramp and the second hydraulic cylinder form a coupling gear, the second hydraulic cylinder being a variable-length link.
  • the other links of the coupling gear i.e. the chassis, the lever and the drilling ramp, are elements with fixed length distances between the points at which they are contacted by the other links of the coupling gear. It is particularly advantageous if all six axes of rotation run parallel. This makes it possible to set up the device very simply.
  • the fourth axis of rotation runs in a horizontal plane which is arranged between the horizontal planes in which the first and second axes of rotation run.
  • the fourth axis of rotation and the second axis of rotation lie on the same straight line, i.e. the second and fourth axes of rotation coincide. This enables a simple structure of the device.
  • first and third axes of rotation are arranged at a horizontal distance from one another, i.e. at least at a distance in the direction of the longitudinal axis of the chassis.
  • the sixth axis of rotation can be arranged at least at a distance in the direction of the longitudinal axis of the rod or the longitudinal axis of the drilling ramp to the second axis of rotation.
  • the second and sixth axes of rotation are at a horizontal distance from one another.
  • the first axis of rotation and the second axis of rotation lie on the same straight line, i.e. they are the same axis of rotation.
  • the drilling ramp serves to hold and guide a drill pipe and a third drive unit, preferably a hydraulic motor, is provided for rotating and axially advancing the drill pipe.
  • a third drive unit preferably a hydraulic motor
  • the third drive unit can only be provided for rotating the drill pipe and a fourth drive unit can be provided for advancing the drill pipe. This allows the drill pipe to be driven easily.
  • a rod magazine for accommodating several rod sections, a fifth drive unit for driving the chassis, a control station for operating the drilling device and/or a mixing device for preparing a flushing liquid are provided. This results in a simple and compact construction of the drilling device.
  • the contact area is formed by a base plate that is connected to the drilling ramp and can be pivoted about at least a seventh axis of rotation.
  • a control unit can then control the second hydraulic cylinder in such a way that, during an adjustment movement of the first hydraulic cylinder, it carries out an adjustment movement in such a way that the seventh axis of rotation is arranged in the same horizontal plane after the adjustment movement of the first and second hydraulic cylinders as before the adjustment movement.
  • the control unit controls the first hydraulic cylinder to increase the entry angle of the drill pipe into the ground in such a way that the second axis of rotation moves upwards by a vertical distance on a circular path around the first axis of rotation and thus also moves away from the entry point of the pipe in the horizontal direction becomes.
  • the control unit controls the second hydraulic cylinder in such a way that the drilling ramp is rotated about the second axis of rotation, so that the contact area is arranged in the same horizontal plane at least before and after the change in the entry angle. This enables easy handling of the drilling device.
  • the drilling ramp is effectively supported by the contact area or the pivotable base plate.
  • two rollers can also be connected to the drilling ramp, which are rotatably arranged around the seventh axis of rotation, so that the end of the drilling ramp, on which the rollers are arranged, can be moved on the ground with the help of the rollers.
  • control unit controls the first hydraulic cylinder to reduce the entry angle in such a way that the second axis of rotation is moved downwards by a vertical distance on a circular path around the first axis of rotation and in particular towards the entry point of the linkage in the horizontal direction. Furthermore, the control unit controls the second hydraulic cylinder in such a way that the drilling ramp is rotated about the second axis of rotation, so that the contact area is arranged in the same horizontal plane at least before and after the change in the entry angle. This ensures that even when the entry angle is reduced, secure support can be provided via the base plate or the contact area, with very simple handling and operation being achieved by the described control of the hydraulic cylinders.
  • control unit controls the second hydraulic cylinder in such a way that it carries out an adjustment movement during an adjustment movement of the first hydraulic cylinder in such a way that the seventh axis of rotation remains in the same horizontal plane during the adjustment movements of the first and second hydraulic cylinders.
  • the drilling ramp includes at least one anchoring device for anchoring the drilling ramp in the ground.
  • the anchoring device can be connected to the base plate of the drilling ramp. This allows the drilling device to be anchored easily and securely in the ground.
  • the angle of inclination of the drilling ramp and/or the drill pipe can be adjusted by an angular range between 10° and 30°, in particular by an angular range of 20°, with the aid of the first and second hydraulic cylinders.
  • This angle of inclination is also referred to as the entry angle of the drill pipe into the ground or as the working angle.
  • an inclination position of the drilling ramp suitable for the respective nature of the soil and thus a suitable entry angle of the drill pipe can be set.
  • the drilling ramp can be tilted relative to the chassis in such a way that an entry angle of the drill pipe can be set in the range between 10° and 30°, in particular between 10° and 25°. This allows a suitable entry angle to be selected and set.
  • the drilling ramp has a first connection area for connecting the arm to the drilling ramp and if the drilling ramp has a second connection area for alternatively connecting the arm to the drilling ramp, the connection areas having at least a distance in the direction of the longitudinal axis of the drilling ramp.
  • the second end of the arm can be connected either to the first connection area or to the second connection area, so that the position of the second axis of rotation on the drilling ramp can be changed. This makes it possible to easily change the adjustable angular range.
  • the drilling ramp is provided relative to the chassis and/or the travel position of the first and/or second hydraulic cylinder.
  • the position of the piston relative to the cylinder housing is viewed as the travel position.
  • all pull cylinders are designed as double-acting hydraulic cylinders. This enables a simple and robust structure as well as simple control of the drilling device.
  • Fig.1 shows a partially simplified side view of a drilling device 10, which operates according to a horizontal drilling method, also referred to as a horizontal directional drilling (HDD) method, according to a first embodiment.
  • This drilling device 10 serves both to introduce a pilot hole into the soil 90 and to expand a hole or opening that already exists in the soil 90.
  • Such a drilling device is, for example, from the document DE 101 15 233 A1 known.
  • a rod composed of several rod sections 16a is drilled into the ground in the direction of arrow P0 using the drilling device 10 at a starting point or entry point P1 with a drill head (not shown) arranged at the end of the rod remote from the drilling device 10 90 introduced.
  • a pilot hole After a pilot hole has been produced, it can then be expanded using an expanding head and, preferably at the same time, a pipe can be drawn into the expanded opening.
  • the expansion head is connected to the end of the rod remote from the drilling device 10 and the rod is moved back to the original entry point P1 with the help of the drilling device 10.
  • the pilot hole When pulled back, the pilot hole is then expanded by the expanding head.
  • the drilling device 10 includes a chassis 12 and a drilling ramp 14. Above the drilling ramp 14, a rod changer 16 is arranged and connected to the drilling ramp 14.
  • the rod changer 16 contains a plurality of rod sections 16a, which are individually transported to an area below the rod changer 16 to extend the rod and there with the end of the rod on the drilling device side and with a rod holder 20 of a drive unit 18 of the drilling device 10 can be connected. To shorten the rod, individual rod sections 16a can be separated from the rod and then transported to the rod magazine of the rod changer 16.
  • the drive unit 18 serves to generate a rotary movement of the rod and thus a rotary movement of the drill head connected to the rod.
  • the drive unit 18 is preferably a hydraulic motor which is arranged on a drive carriage 19 together with the linkage holder 20.
  • the drive carriage 19 can be moved in the direction of arrow P0 with the aid of a further drive unit 22, which in the present exemplary embodiment includes several hydraulic cylinders.
  • the drilling ramp 14 and the chassis 12 are connected via a lever 24, the first end of which is connected to the chassis so that it can pivot about a first axis of rotation 26 and the second end of which is connected to the drilling ramp 14 so that it can pivot about a second axis of rotation.
  • the lever 24 can be pivoted about the first axis of rotation 26.
  • a first end of the hydraulic cylinder 30 is pivotable to the chassis about a third axis of rotation 32 and a second end of the hydraulic cylinder 30 is connected to the lever 24 about a fourth axis of rotation 34.
  • the hydraulic cylinder 30 is shown in a retracted position in which the lever 24 is arranged at its lower position.
  • the lever 24 is pivoted about the first axis of rotation 26, so that the axis of rotation 28 is moved on a circular path around the axis of rotation 26.
  • the chassis 12 is further connected to the drilling ramp 14 via a second hydraulic cylinder 36, the hydraulic cylinder 36 being connected to the chassis 12 so as to be pivotable about a fifth axis of rotation 38 and to the drilling ramp 14 so as to be pivotable about a sixth axis of rotation 40.
  • a setup length between the entry point P1 of the rod into the ground 90 and the side of the drilling device 10 facing away from it which is in Fig.1 is labeled L1.
  • a base plate 42 is arranged, which is pivotally connected to the remaining section of the drilling ramp 14 about a seventh axis of rotation 43.
  • the base plate 42 can always be arranged parallel to the soil 90 or contact the soil 90 flatly, even at different entry angles ⁇ 1.
  • two rollers 45 are provided, which are arranged to rotate freely about a common axis of rotation, so that the drilling ramp 14 can be pushed and/or pulled over the soil 90.
  • a unit 44 for inserting a total of two ground anchors 46 is provided.
  • the unit 44 can be pivoted about an eighth axis of rotation 43 and/or about the axis of rotation of the rollers 45, so that the drill anchors 46 can be inserted into the ground 90 with different inclinations, in particular at an angle.
  • the unit 44 thus serves as an anchoring unit 44 for the drilling device 10. Further details or alternative designs of the anchoring unit 44 are, for example, from the document DE 195 06 337 C1 known.
  • the drilling ramp 14 also includes breakaway devices 48, 50, with the help of which, in conjunction with the drive unit 18, rod sections 16a can be separated from each other and from the rod holder 20. Furthermore, a cooler 52 of a hydraulic unit, not shown, and a tank 54 for providing fuel for the hydraulic unit can be seen. Furthermore, a monitor 56 for a locating system of the drill head connected to the rod and an operating unit 58 for operating the breakaway device 48, 50 are connected to the drilling ramp 14. The operating unit for operating the drilling device 10 has been hidden for a better representation of the other components of the drilling device 10. However, the drilling device 10 can be in the In practice, it includes a control stand through which an operator can move the chassis 12 as well as operate and monitor the drilling device 10 during the drilling process.
  • the chassis 12, the arm 24, the drilling ramp 14 and the second hydraulic cylinder 36 form a coupling gear or a four-bar linkage.
  • the second hydraulic cylinder 36 is preferably a variable-length member of the coupling gear.
  • Fig.2 shows another side view of the drilling device 10 Fig.1 .
  • the drilling ramp 14 of the drilling device 10 in Fig.2 shown in a second pivot position, ie the entry angle ⁇ 1 Fig.1 has been increased to angle ⁇ 2 by pivoting the drilling ramp 14.
  • the first hydraulic cylinder 30 has been fully extended and the second hydraulic cylinder 36 has not yet been fully extended.
  • the drilling ramp 14 has also been moved away from the original entry point P1, so that the distance L2 between the new entry point P2 and the rear end of the drilling device 10 has been reduced.
  • Fig.3 shows another side view of the drilling device according to the Fig.1 and 2 .
  • the drilling ramp 14 of the drilling device 10 is in Fig.3 shown in a third pivot position.
  • both the first hydraulic cylinder 30 and the second hydraulic cylinder 36 have been extended further to their end position.
  • the chassis 12 has been arranged in a position elevated by the distance L4 with respect to the ground at the entry point P3.
  • the required working length of the drilling device 10 between the new entry point P3 and the rear end of the drilling device 10 has further reduced to the length L3, specifically to 4.297 m in the specific exemplary embodiment.
  • the drilling ramp 14 has a first connection area 68 for connecting the arm 24 with the drilling ramp 14. Furthermore, the drilling ramp 14 has a second connection region 70 for connecting the arm 24 to the drilling ramp 14, the first connection region 68 and the second connection region 70 being at least at a distance from one another in the direction of the longitudinal axis of the drilling ramp 14.
  • the second end of the arm 24 is optionally connectable to the first connection area 68 or to the second connection area 70. This allows different inclinations and different protrusion positions of the drilling ramp relative to the chassis to be achieved.
  • the first and second hydraulic cylinders are then adjusted such that at least in a part of the adjustment range of the pivoting position of the drilling ramp 14, the base plate 42 as well as the chassis 12 are arranged on the surface of the ground, ie in the same plane.
  • Fig.4 shows a perspective view of the chassis 12 of the drilling device 10 according to Fig.1 to 3 , in which the two parallel chain drives 60, 62 are visible.
  • the chassis 12 includes a support element 64, which, with the aid of a further hydraulic cylinder 66, moves into a support position in which the support element 64 is pressed against the soil 90 with a pressure force, and in a travel position in which the support element 64 does not touch the soil 90 can be contacted and moved.
  • the support element 64 and the hydraulic cylinder 66 are in the Fig.1 to 4 not shown.
  • the chain drives 60, 62 are each driven by a separate hydraulic motor.
  • 12 transport eyes 68, 70 are provided on the chassis, into which ropes of a crane can be suspended to lift the drilling device 10.
  • the lever 24 includes side cheeks 24a, 24b, between which a section of the first hydraulic cylinder 30 is arranged.
  • the longitudinal axis of the hydraulic cylinder 30 intersects in a vertical plane the connecting line between the first axis of rotation 26 and the second axis of rotation 28.
  • the orthogonal connecting lines between the first axis of rotation 26 and the second axis of rotation 28, between the second axis of rotation 28 and the fourth axis of rotation 34 and between the fourth axis of rotation 34 and the first axis of rotation 26 form a triangle.
  • the triangle can be an isosceles triangle, with the two legs of equal length being arranged between the first and fourth axes of rotation and between the second and fourth axes of rotation.
  • the leg between the first axis of rotation 26 and the second axis of rotation 28 is longer than the leg between the second axis of rotation 28 and the fourth axis of rotation 34 and/or between the first and the fourth axis of rotation.
  • the first, second and fourth axes of rotation extend orthogonally to a straight line.
  • Fig.5 shows another side view of the drilling device 10 according to the Fig.1 to 4 .
  • the side view Fig.5 shows the opposite side of the drilling device 10 compared to the illustrations Fig.1 to 3 .
  • the drilling ramp has been pivoted into a driving position with the aid of the first hydraulic cylinder 30 and the second hydraulic cylinder 36, in which the drilling ramp is at a sufficient distance from the earth's surface 90.
  • all elements of the drilling device 10 are shown, in particular the elements of the control stand 80 and a pump for pumping flushing fluid, which is pumped via the rod holder into the hollow rod sections 16a of the rod.
  • Fig.6 shows a simplified schematic representation of a side view of a drilling device 100 according to a second embodiment.
  • the structure and function of the drilling device 100 largely correspond to the drilling device 10 according to the first embodiment Fig.1 to 5 agree. Elements with the same structure or function have the same reference numbers.
  • the drilling device has 100 after Fig.6 a base plate 102, which has no travel rollers 45, but lies flat on the surface of the soil 90.
  • a representation of the drive units for moving the drive carriage 19 is shown in the simplified representation Fig.6
  • the components required have been omitted.
  • both the first hydraulic cylinder 30 and the second hydraulic cylinder 36 have been completely extended to their end positions.
  • the chassis 12 of the drilling device Fig.8 has been arranged elevated relative to the contact surface of the base plate 42. Furthermore, the second hydraulic cylinder 36 is fully extended and the first hydraulic cylinder 30 is as shown Fig.7 somewhat retracted, so that the base plate 42 arranged at the front end of the drilling ramp 14, ie the end facing the entry point P1 to P3, is arranged in a lower level than the chain drives 60, 62 of the chassis 12. In the case in Fig.8 The pivoting position of the drilling ramp 14 shown results in an entry angle of the linkage of approximately 22°.
  • the distance between the first axis of rotation 26 and the second axis of rotation 28 caused by the lever 24 can be increased, so that this results in an increased adjustment range of the drilling ramp 14, so that in particular entry angles in the range between 10 ° and 30 °, in particular between 10° and 35° or between 10° and 40° are possible.
  • the base plate 42, 102 rests on the surface of the soil 90 in the same plane in which the chassis 12 also stands on the surface of the soil 90.

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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)

Claims (13)

  1. Dispositif de forage, en particulier pour un forage de sol horizontal guidé en direction, comprenant
    un châssis (12) et une rampe de forage (14), dans lequel la rampe de forage (14) sert à maintenir et à guider une tige de forage,
    un bras pivotant (24) dont une première extrémité est reliée au châssis (12) de manière à pouvoir tourner autour d'un premier axe de rotation (26) et dont une seconde extrémité est reliée à la rampe de forage (14) de manière à pouvoir tourner autour d'un deuxième axe de rotation (28),
    un premier vérin hydraulique (30) pour faire pivoter le bras (24) autour du premier axe de rotation (26), dans lequel la première extrémité du premier vérin hydraulique (30) est reliée au châssis (12) de manière à pouvoir tourner autour d'un troisième axe de rotation (32) et dans lequel la seconde extrémité du premier vérin hydraulique (30) est reliée au bras (24) de manière à pouvoir tourner autour d'un quatrième axe de rotation (34), et
    un second vérin hydraulique (36) pour faire pivoter la rampe de forage (14) autour du deuxième axe de rotation (28), dans lequel la première extrémité du second vérin hydraulique (36) est reliée au châssis (12) de manière à pouvoir tourner autour d'un cinquième axe de rotation (38) et la seconde extrémité du second vérin hydraulique (36) est reliée à la rampe de forage (14) de manière à pouvoir tourner autour d'un sixième axe de rotation (40),
    une unité de commande pour commander le premier vérin hydraulique (30) et pour commander le second vérin hydraulique (36),
    caractérisé en ce qu'une zone de contact (42, 102) est présente à une extrémité de la rampe de forage (14) pour prendre appui sur le sol (90), dans lequel au moins la zone de contact (42, 102) de la rampe de forage (14) dépasse latéralement du châssis (12),
    dans lequel l'unité de commande commande le premier vérin hydraulique (30) pour augmenter l'angle d'attaque (α) de la tige de forage dans le sol (90) de telle sorte que le deuxième axe de rotation (28) est déplacé sur une trajectoire circulaire autour du premier axe de rotation (26) d'une distance verticale vers le haut et donc également à partir du point d'entrée de la tige dans la direction horizontale, dans lequel l'unité de commande commande en outre le second vérin hydraulique (36) de telle sorte que la rampe de forage (14) est mis en rotation autour du deuxième axe de rotation (28), de sorte que la zone de contact est agencée dans le même plan horizontal au moins avant et après la modification de l'angle d'attaque (α).
  2. Dispositif selon la revendication 1, caractérisé en ce que le châssis (12), le bras (24), la rampe de forage (14) et le second vérin hydraulique (36) forment un engrenage de couplage, dans lequel le second vérin hydraulique (36) est un membre de longueur variable.
  3. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le quatrième axe de rotation (34) s'étend dans un plan horizontal qui est agencé entre les plans horizontaux dans lesquels s'étendent le premier axe de rotation (26) et le deuxième axe de rotation (28), ou en ce que le quatrième axe de rotation (34) et le deuxième axe de rotation (28) se trouvent sur la même droite.
  4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la rampe de forage (14) comprend une troisième unité d'entraînement (18), de préférence un moteur hydraulique, pour une mise en rotation et une avance axiale de la tige de forage.
  5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la zone de contact est formée par une plaque de fond (42, 102) reliée à la rampe de forage (14) et pouvant pivoter autour d'au moins un septième axe de rotation (43), et en ce qu'une unité de commande commande le second vérin hydraulique (36) de telle sorte que lors d'un mouvement de réglage du premier vérin hydraulique (30), il exécute un mouvement de réglage de telle sorte que le septième axe de rotation (43) est agencé après les mouvements de réglage des vérins hydrauliques (30, 36) dans le même plan horizontal qu'avant le mouvement de réglage.
  6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de commande commande le premier vérin hydraulique (30) pour augmenter l'angle d'attaque (α) au moins jusqu'à un certain angle d'attaque déterminé (α), en ce que le deuxième axe de rotation (28) est déplacé vers le haut sur une trajectoire circulaire autour du premier axe de rotation (26) sur une distance verticale, et en ce que l'unité de commande commande le second vérin hydraulique (36), en ce que la rampe de forage (14) est mise en rotation autour du deuxième axe de rotation (28) de sorte que la zone de contact (42, 102) est agencée dans le même plan horizontal au moins avant et après la modification de l'angle d'attaque (α).
  7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de commande commande le premier vérin hydraulique (30) pour réduire l'angle d'attaque (α) au moins à partir d'un angle d'attaque déterminé (α), en ce que le deuxième axe de rotation (28) est déplacé vers le bas sur une trajectoire circulaire autour du premier axe de rotation (26) sur une distance verticale, et en ce que l'unité de commande commande le second vérin hydraulique (36), en ce que la rampe de forage (14) est mise en rotation autour du deuxième axe de rotation (28) de sorte que la zone de contact (42, 102) est agencée dans le même plan horizontal au moins avant et après la modification de l'angle d'attaque (α).
  8. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de commande commande le second vérin hydraulique (36) de telle sorte qu'il exécute un mouvement de réglage lors d'un mouvement de réglage du premier vérin hydraulique (30) de telle sorte que le septième axe de rotation (43) reste dans le même plan horizontal lors des mouvements de réglage des vérins hydrauliques (30, 36).
  9. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la rampe de forage (14) comprend au moins une unité d'ancrage (44) pour ancrer la rampe de forage (14) au sol (90).
  10. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'angle d'inclinaison de la rampe de forage (14) et/ou de la tige de forage est réglable à l'aide des premier et second vérins hydrauliques (30, 36) sur une plage angulaire comprise entre 10° et 30°, en particulier une plage angulaire de 20°.
  11. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la rampe de forage (14) peut être inclinée par rapport au châssis de telle sorte qu'un angle d'attaque (α) de la tige de forage peut être réglé dans la plage comprise entre 10° et 30°, en particulier entre 10° et 25°.
  12. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la rampe de forage (14) présente une première zone de liaison (68) pour relier le bras (24) à la rampe de forage (14) et en ce que la rampe de forage (14) présente une seconde zone de liaison (70) pour relier le bras (24) à la rampe de forage (14), dans lequel les zones de liaison (68, 70) présentent au moins une distance l'une par rapport à l'autre dans la direction de l'axe longitudinal de la rampe de forage (14), en ce que la seconde extrémité du bras (24) peut être reliée au choix à la première zone de liaison (68) ou à la seconde zone de liaison (70).
  13. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins un capteur est prévu pour détecter une position de pivotement de la rampe de forage (14) par rapport au châssis (12) et/ou la position de procédé du premier et/ou du second vérin hydraulique (30, 36) .
EP18160727.6A 2017-06-16 2018-03-08 Dispositif de forage Active EP3415708B1 (fr)

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DE102019106486A1 (de) * 2019-03-14 2020-09-17 TERRA AG für Tiefbautechnik Bohrvorrichtung
CN115635536B (zh) * 2022-10-30 2024-04-30 华智源电气集团股份有限公司 一种变压器箱体多角度钻孔工具

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US3205627A (en) * 1962-07-09 1965-09-14 Ingersoll Rand Co Rock drill mounting
SE7406100L (sv) * 1974-05-07 1975-11-10 Linden Alimak Ab Borraggregat.
DE19506337C1 (de) 1995-02-23 1996-03-14 Terra Ag Tiefbautechnik Verankerungsvorrichtung für einen Bohrwagen einer mobilen Erdbohreinrichtung
US6527063B2 (en) * 2000-02-17 2003-03-04 Wendall D. Rust Directional boring device
DE10115233C5 (de) 2000-05-11 2011-09-15 TERRA AG für Tiefbautechnik Horizontalbohranlage
SE532041C2 (sv) * 2008-02-20 2009-10-06 Atlas Copco Rock Drills Ab Anordning vid bergborrigg jämte bergborrigg
WO2011088312A2 (fr) * 2010-01-15 2011-07-21 Vermeer Manufacturing Company Machine de forage et son procédé
DE102013111350A1 (de) 2013-10-15 2015-04-16 TERRA AG für Tiefbautechnik Aufweitwerkzeug und Vorrichtung zum Aufweiten einer im Erdreich vorhandenen Durchgangsöffnung

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DE102017113247A1 (de) 2018-12-20
PL3415708T3 (pl) 2023-11-06

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