EP4296467A1 - Vorrichtung und verfahren zum räumen eines wendelzwischenraumes einer bohrwendel - Google Patents

Vorrichtung und verfahren zum räumen eines wendelzwischenraumes einer bohrwendel Download PDF

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Publication number
EP4296467A1
EP4296467A1 EP22180485.9A EP22180485A EP4296467A1 EP 4296467 A1 EP4296467 A1 EP 4296467A1 EP 22180485 A EP22180485 A EP 22180485A EP 4296467 A1 EP4296467 A1 EP 4296467A1
Authority
EP
European Patent Office
Prior art keywords
clearing
drilling
support arm
drilling tool
base
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP22180485.9A
Other languages
German (de)
English (en)
French (fr)
Inventor
Robert Dreier
Daniel REIL
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.)
Bauer Maschinen GmbH
Original Assignee
Bauer Maschinen GmbH
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 Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to EP22180485.9A priority Critical patent/EP4296467A1/de
Priority to JP2023098241A priority patent/JP2024001865A/ja
Priority to AU2023203843A priority patent/AU2023203843A1/en
Priority to CN202310726050.7A priority patent/CN117266754A/zh
Priority to US18/338,126 priority patent/US20230417108A1/en
Publication of EP4296467A1 publication Critical patent/EP4296467A1/de
Pending legal-status Critical Current

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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
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • 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
    • E21B12/00—Accessories for drilling tools
    • E21B12/06—Mechanical cleaning devices
    • 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
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/027—Drills for drilling shallow holes, e.g. for taking soil samples or for drilling postholes
    • 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
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

Definitions

  • the invention relates to a device for clearing a helical space in a drilling helix of a drilling tool, with a base slide which can be slidably mounted along a mast of a drilling device, a clearing element which is designed to engage in the helical space of the drilling tool, with soil material adhering to the drilling tool can be stripped off by the clearing element when the drilling tool is rotated, and a support arm on which the clearing element is held and which can be moved relative to the base slide between a retraction position in which the clearing element is spaced from the drilling tool and a clearing position in which the clearing element is mounted intervenes in the space between the coils for stripping off soil material, according to the preamble of claim 1.
  • the invention further relates to a method for clearing a helical space in a drilling helix of a drilling tool, in particular a Kelly auger, of adhering soil material, according to the preamble of claim 14.
  • the invention is based on the object of specifying a device and a method for clearing the space between the spirals of a drilling spiral, with which a particularly high level of operational reliability can be achieved.
  • a basic idea of the invention is that the support arm is mounted so that it can be pivoted or deflected in several directions. Preferably there is a resilient mounting to achieve the swinging out or deflection.
  • the support arm can initially be pivoted between the retraction position and the clearing position about a pivot axis which is directed essentially parallel to the longitudinal axis of the drilling. This enables the support arm to be swiveled in and out laterally in relation to the drilling spiral. Compared to a vertical swing out, a pivoting movement can easily be carried out even if the clearing element is already engaged in the drilling spiral.
  • a preferred embodiment of the invention is that a base member and an actuator of the support arm are provided, which is held in a displaceable and adjustable manner on the base member, which is mounted on the base slide so that it can pivot about the pivot axis.
  • the actuator of the support arm can be viewed as an actual support arm, at the free end of which a preferably plate-shaped clearing element is attached.
  • the rod-shaped actuator can be mounted telescopically in the base member, which can be designed separately from the support arm or as part of the support arm.
  • the base member can in particular be tubular, with the rod-shaped actuator being held linearly displaceable within the tubular base member and thus adjustable in length. By means of a resilient mounting, the actuator can in principle also be held in the base member in a resilient, linearly adjustable manner.
  • the support arm can be pivoted manually.
  • the adjustment movement can be done by one Machine operator, in particular from a cabin of a corresponding drilling rig.
  • the adjusting element is arranged on the base slide and is connected to the support arm via a lever mechanism.
  • the lever mechanism With the lever mechanism, a desired translation and movement can be achieved, in particular with sufficient articulation and deflection of the support arm relative to the actuating element.
  • the lever mechanism can basically be designed in any suitable way to carry out the adjustment function.
  • a preferred embodiment is that the lever mechanism has a guide lever, which is articulated on the one hand to the base slide and on the other hand to the piston of the actuating element, and a coupling lever, which is connected on the one hand to the piston and / or to the guide lever and on the other hand via a coupling joint is articulated to the support arm.
  • this lever mechanism allows a good translation of a (linear) actuating movement of the actuating element to be converted into a pivoting movement.
  • the coupling joint can, for example, have a gimbal joint, a ball joint or other multi-axis joint.
  • the coupling joint between the support arm and the coupling lever comprises a hinge pin which is mounted in a linearly displaceable manner in an elongated hole on the support arm.
  • the elongated hole can in particular be designed parallel to a longitudinal axis of the support arm. This achieves a longitudinally displaceable articulation of the coupling lever on the support arm.
  • the support arm can be designed in one or more parts.
  • a particularly advantageous embodiment of the invention is that the actuator of the support arm is mounted on the base member so as to be pivotable about a deflection axis which is directed transversely to the longitudinal axis of the drilling.
  • the actuator of the support arm is thus pivotally mounted about the transversely directed, in particular horizontally directed, deflection axis.
  • the base carriage of the device for clearing is mounted in a longitudinally displaceable manner, in particular vertically displaceable manner, in particular along a mast of a drilling rig.
  • the base carriage can be moved in any suitable manner and can in particular be coupled to a drill drive.
  • the base carriage has at least one tubular chain quiver for holding on at least one chain, which extends along the base carriage and is open at the top.
  • the base carriage can be attached to a drilling drive carriage, for example, with at least one chain, preferably with at least two chains spaced apart from one another.
  • the base carriage When the base carriage is moved downwards, it can reach a lower stop area on the mast, with a further movement of the drill drive carriage, for example, allowing the contracting chain to be efficiently accommodated in the tubular chain quiver.
  • the same number of chain quivers are provided depending on the number of chains. The chain can be properly picked up and stored in these.
  • a fastening member for fastening the chain is arranged in a lower region of the chain quiver.
  • a detachable fastening can be provided.
  • a further advantageous embodiment of the invention is that at least one support foot is arranged on the base carriage, which is preferably displaceable and resiliently mounted in a vertical direction. A certain level of buffering can be achieved with such a support foot when the base carriage is placed on a stop area or the floor.
  • the resiliently mounted stand it is particularly expedient for the resiliently mounted stand to be connected to the fastening member in the chain quiver. Overall, a buffered or spring-loaded chain suspension can be achieved.
  • the invention further comprises a drilling machine with a support unit and a mast arranged thereon, on which a rotary drilling drive for rotating the drilling tool with a drilling helix, in particular a Kelly drilling auger, is mounted, with a device according to the invention for clearing being arranged on the mast.
  • a drilling machine which can also be referred to as an earth drilling machine and which is used in particular to create holes in the ground for foundation piles
  • the advantages described above can be achieved when using a device for clearing.
  • an efficient clearing of a Kelly auger which is usually between 2 and 6 meters long, can be reliably and efficiently cleared of adhering soil material.
  • the invention further comprises a method for clearing a spiral space in a drilling spiral of a drilling tool, in particular a Kelly auger, of adhering soil material, a device according to the invention being used for clearing.
  • a device according to the invention being used for clearing.
  • efficient emptying can be achieved by clearing the drilling helix with the device according to the invention.
  • the drilling device 10 comprises a carrier unit 12, which in the illustrated embodiment is designed to be mobile with an undercarriage 13, which is designed with a crawler chassis, and a superstructure 14 rotatably mounted thereon.
  • a carrier unit 12 which in the illustrated embodiment is designed to be mobile with an undercarriage 13, which is designed with a crawler chassis, and a superstructure 14 rotatably mounted thereon.
  • Articulation mechanism 15 a mast 16 which is essentially vertically directed during operation, is mounted so that it can be angled.
  • the mast 16 is designed as a so-called leader with a front linear guide, along which a drive carriage 17 with a rotary drill drive 18 is slidably guided.
  • a feed drive (not shown) is provided, which can be implemented by a feed winch or by a linear actuating cylinder.
  • a schematically indicated Kelly rod 8 with outer axial drive strips (not shown) is passed through an annular drive element of the rotary drill drive 18, which can also be referred to as a power turret or drilling table.
  • the Kelly bar 8 can be designed to be telescopic and is suspended on the mast 16 in a vertically adjustable manner via a rope.
  • a drilling tool 2 is attached in a rotationally fixed manner, which in the exemplary embodiment shown is designed as a so-called Kelly auger.
  • the drilling device 10 according to the invention is used to create boreholes in the ground, in particular to create foundation piles in the ground.
  • a device 20 for clearing is arranged on the mast 16 opposite the drilling tool 2.
  • the device 20 for clearing is described below in connection with Figures 3 and 4 explained in more detail.
  • the device 20 comprises a base carriage 22, which, like the drive carriage 17, can be guided in a linearly displaceable manner on the same guide of the mast 16.
  • the basic carriage 22 has two lateral sleeve-shaped chain cases 24, in which upwardly extending chains 25 are fastened.
  • the ones in the Figures 3 and 4 Chains 25, only partially shown, serve to connect and suspend the base carriage 22 on the one above and in the Figures 3 and 4 Drive carriage 17, not shown.
  • the chain quivers 24 can be closed with a plate-shaped stand 26.
  • the actuator 34 of the support arm 30 is mounted deflectable in a substantially vertical direction via a deflection axis 38 directed transversely thereto, which is directed in particular orthogonally to the drilling axis.
  • a clearing element 50 is attached, which is designed to engage in a spiral space 6 on a drilling spiral 4 of the drilling tool 2.
  • the drilling coil 4 extends with a few turns along a tubular drilling shaft 3.
  • a pilot tip 1 is arranged at the lower end of the drilling shaft 3.
  • removal teeth 5 for removing soil material are arranged in a generally known manner.
  • the drilling tool 2 can be detachably inserted into the drilling tool 2 using a square connection 7 at the upper end of the drill shaft 3 Figures 3 to 5 Kelly rod 8, not shown, can be connected in a rotationally fixed manner.
  • the deflection of the clearing element 50 on the support arm 30 is clearly shown in Fig. 5 shown.
  • the actuator 34 of the support arm 30 can follow the vertical movement of the drilling tool 2 to a certain extent by deflecting the actuator 34 about the deflection axis 38.
  • Guide rollers 23 can also be seen on the base slide 22 of the device 20, with which the base slide 22 is slidably guided on guide strips of the mast 16 of the drilling device 10.
  • a lever mechanism 60 with an actuating element 42 in the form of an actuating cylinder can be provided, which will be discussed in more detail below Figures 7 and 8th to be discribed.
  • An approximately horizontally directed actuating cylinder is arranged in an articulated manner as an actuating element 42 on the front of the base slide 22.
  • a piston 43 that can be extended from the actuating cylinder, in particular a hydraulic cylinder, is articulated to a guide lever 62, which is pivotally mounted on the base slide 22 via a hinge pin 64.
  • a coupling lever 66 is articulated via a link pin 68.
  • the coupling lever 66 At an opposite end of the coupling lever 66, it is pivotally and displaceably mounted along a longitudinal axis of the support arm 30 via a coupling joint 70 with a hinge pin 72 in an elongated hole 74.
  • the hinge pin 72 can be pretensioned in the elongated hole 74 via a tension spring 76 with a guide pin 78.
  • the tension spring 76 holds the hinge pin 72 in position, but allows a certain degree of mobility if the support arm 30 encounters resistance during operation and the spring tension force is overcome. This protects the arrangement from damage.
  • the support arm 30 can be deflected about the deflection axis 38, so that damage is avoided if an unintentional axial move occurs to a certain extent while the clearing element 50 is still pivoted in.
  • the chains 25 each extend through a sleeve-shaped chain quiver 24 to a lower fastening member 82 of a fastening arrangement 80 at the lower end of the respective chain quiver 24.
  • the fastening member 82 which is displaceably mounted in a vertical direction on the base carriage 22.
  • the fastening member 82 for the respective chain 25 can be mounted in a resilient and linearly displaceable manner via lateral damping springs 64.
  • the chain links of the chains 25 can fold or push together within the sleeve-shaped chain quiver 24.
  • vertical shocks on the base carriage 22 and thus also on the support arm 30 can be avoided or dampened, which can also serve to protect the clearing element 50 and the drilling tool 2, provided that the clearing element 50 is in the clearing position located. Damping is also achieved when the base carriage 22 hits the ground. This can be done, for example, if the drive carriage 17 is relatively close to the ground and the support arm 30 is pivoted out of the helix of the drilling tool 2. The basic carriage 22 can fall down a certain distance and hit the ground.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
EP22180485.9A 2022-06-22 2022-06-22 Vorrichtung und verfahren zum räumen eines wendelzwischenraumes einer bohrwendel Pending EP4296467A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP22180485.9A EP4296467A1 (de) 2022-06-22 2022-06-22 Vorrichtung und verfahren zum räumen eines wendelzwischenraumes einer bohrwendel
JP2023098241A JP2024001865A (ja) 2022-06-22 2023-06-15 ドリル螺旋羽根の羽根間ギャップに対して掻き落としをする装置及び方法
AU2023203843A AU2023203843A1 (en) 2022-06-22 2023-06-19 Device and method for reaming a flight gap of a drill flight
CN202310726050.7A CN117266754A (zh) 2022-06-22 2023-06-19 用于清理钻孔螺旋的螺旋间隙的装置和方法
US18/338,126 US20230417108A1 (en) 2022-06-22 2023-06-20 Device and method for reaming a flight gap of a drill flight

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22180485.9A EP4296467A1 (de) 2022-06-22 2022-06-22 Vorrichtung und verfahren zum räumen eines wendelzwischenraumes einer bohrwendel

Publications (1)

Publication Number Publication Date
EP4296467A1 true EP4296467A1 (de) 2023-12-27

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ID=82214255

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22180485.9A Pending EP4296467A1 (de) 2022-06-22 2022-06-22 Vorrichtung und verfahren zum räumen eines wendelzwischenraumes einer bohrwendel

Country Status (5)

Country Link
US (1) US20230417108A1 (zh)
EP (1) EP4296467A1 (zh)
JP (1) JP2024001865A (zh)
CN (1) CN117266754A (zh)
AU (1) AU2023203843A1 (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS514802A (en) * 1974-06-28 1976-01-16 Hitachi Sanken Kk Oogasukuryuuno jidohaidosochi
DE3446900A1 (de) 1984-12-21 1986-07-03 Karl Bauer Spezialtiefbau GmbH & Co KG, 8898 Schrobenhausen Vorrichtung zum reinigen eines schneckenbohrers
JPH0660634U (ja) * 1993-02-05 1994-08-23 株式会社絹田熔工 掘削機における排土装置
DE102008064180A1 (de) * 2008-12-22 2010-10-28 Roman Franz Vorrichtung zum Einbringen einer Erdbohrung in das Erdreich
DE202018101237U1 (de) * 2018-03-06 2019-06-07 Liebherr-Werk Nenzing Gmbh Vorrichtung zum Reinigen einer Bohrschnecke
EP3951128A1 (de) 2020-08-05 2022-02-09 BAUER Maschinen GmbH Vorrichtung zum räumen eines wendelzwischenraumes einer bohrschnecke und verfahren zum erstellen einer bohrung
CN114046133B (zh) * 2022-01-11 2022-04-26 南通东之杰智能装备有限公司 一种建筑地基钻孔装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS514802A (en) * 1974-06-28 1976-01-16 Hitachi Sanken Kk Oogasukuryuuno jidohaidosochi
DE3446900A1 (de) 1984-12-21 1986-07-03 Karl Bauer Spezialtiefbau GmbH & Co KG, 8898 Schrobenhausen Vorrichtung zum reinigen eines schneckenbohrers
JPH0660634U (ja) * 1993-02-05 1994-08-23 株式会社絹田熔工 掘削機における排土装置
DE102008064180A1 (de) * 2008-12-22 2010-10-28 Roman Franz Vorrichtung zum Einbringen einer Erdbohrung in das Erdreich
DE202018101237U1 (de) * 2018-03-06 2019-06-07 Liebherr-Werk Nenzing Gmbh Vorrichtung zum Reinigen einer Bohrschnecke
EP3951128A1 (de) 2020-08-05 2022-02-09 BAUER Maschinen GmbH Vorrichtung zum räumen eines wendelzwischenraumes einer bohrschnecke und verfahren zum erstellen einer bohrung
CN114046133B (zh) * 2022-01-11 2022-04-26 南通东之杰智能装备有限公司 一种建筑地基钻孔装置

Also Published As

Publication number Publication date
US20230417108A1 (en) 2023-12-28
CN117266754A (zh) 2023-12-22
JP2024001865A (ja) 2024-01-10
AU2023203843A1 (en) 2024-01-18

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