EP2781682B1 - Kleinbohrgerät - Google Patents

Kleinbohrgerät Download PDF

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Publication number
EP2781682B1
EP2781682B1 EP13160119.7A EP13160119A EP2781682B1 EP 2781682 B1 EP2781682 B1 EP 2781682B1 EP 13160119 A EP13160119 A EP 13160119A EP 2781682 B1 EP2781682 B1 EP 2781682B1
Authority
EP
European Patent Office
Prior art keywords
tilting
mast
axis
telescopic mast
rotary
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.)
Active
Application number
EP13160119.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2781682A1 (de
Inventor
Kuno Klein
Alexandra Baumert
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.)
Keller Holding GmbH
Original Assignee
Keller Holding 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 Keller Holding GmbH filed Critical Keller Holding GmbH
Priority to ES13160119T priority Critical patent/ES2714451T3/es
Priority to EP13160119.7A priority patent/EP2781682B1/de
Priority to PL13160119T priority patent/PL2781682T3/pl
Priority to DK13160119.7T priority patent/DK2781682T3/en
Priority to US14/219,387 priority patent/US9657524B2/en
Publication of EP2781682A1 publication Critical patent/EP2781682A1/de
Application granted granted Critical
Publication of EP2781682B1 publication Critical patent/EP2781682B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E21B7/00—Special methods or apparatus for drilling
    • 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
    • E21B7/023—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting the mast being foldable or telescopically retractable
    • 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
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/022—Top drives
    • 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
    • E21B7/024—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting having means for adapting to inclined terrain; having means for stabilizing the vehicle while drilling

Definitions

  • the invention relates to a mobile drill for producing holes in the ground.
  • the small drilling rig has a drilling mast on which a drilling carriage is guided vertically, a feed device releasably connected to the drilling carriage, a drilling drive, a rope winch with rope and a cable guide via a deflection device at the upper end of the drilling mast.
  • From the DE 1 483 853 A1 is a drill with an adjustable in its inclination or angular position held mast and drive means for a drilling tool or a drill pipe known.
  • a carrier device which has as a basic unit a crawler excavator with a tracked chassis and a rotatably mounted about a vertical axis superstructure.
  • a drilling device On the superstructure a drilling device is mounted on an adjusting kinematics.
  • the drilling device has a Broker, which is slidably mounted relative to a leader guide in the longitudinal direction of the leader.
  • the support cylinder is hinged on the one hand pivotally on the adjustment mechanism and on the other hand pivotally mounted on the leader guide.
  • a construction machine with a boom which is pivotable by means of a pivoting forceps mechanism with two counter-controlled pivoting cylinders.
  • the boom carries a movable carriage in a guide.
  • the guide of the carriage can be pivoted about a transverse axis, by means of a second cylinder, the guide of the carriage can be pivoted about a longitudinal axis, by means of a third cylinder, the boom is pivotable about a horizontal axis, by means of a fourth cylinder is the boom pivotable about another horizontal axis.
  • the present invention seeks to propose a small drill, which allows variable adaptation to different space conditions such as passage width or room height without retooling.
  • the solution consists in a small drill for producing holes in the ground, comprising: a main carrier, a telescopic mast with an adjustable length, a rotating device with which the telescopic mast is pivotable relative to the main carrier about a vertical axis of rotation (A1), wherein the rotating device is a rotary element and a rotary drive, with which the rotary member with respect to the main carrier about the vertical axis (A1) is driven to rotate, a tilting device, with which the telescopic mast about a horizontal tilting axis (A2) is pivotable, wherein the tilting device comprises a tilting element which is opposite to the Rotary element about the horizontal tilting axis (A2) is pivotally mounted, and a tilting drive, which is supported relative to the rotary member and serves to pivot the tilting element; a pivoting device with which the telescopic mast is pivotable about a pivot axis (A3), wherein the pivot axis (A3) perpendicular to the horizontal tilt axis (A2)
  • the advantage is that a drill attached to the telescopic mast can be quickly brought to different drilling positions due to the combination of telescoping and pivoting of the mast about a vertical axis.
  • holes can thus be produced close to building walls with the small drill without the need to move the drill itself for this purpose.
  • By telescoping the mast longer drill string elements can be used, so that the setup time and thus the drilling time can be reduced overall.
  • small drill means that this has relatively compact dimensions, so that it can be used in confined spaces.
  • the dimensions of the small drill are chosen so that it can be moved by standard size doors.
  • the small drill in beigeklappter position of the individual modules has a maximum width of 760 mm and a maximum height of 1900 mm.
  • the device is suitable for use in buildings, for example for the production of foundation underpinnings.
  • the drill is moved into the building to the desired position. It then drills through the foundation of the building and drills a hole in the underlying soil. Thereafter, a curable suspension can be introduced through the drill pipe into the soil.
  • the small drill is designed as a mobile device, that is, it has a vehicle with its own drive for locomotion.
  • the length of the telescopic mast is infinitely adjustable so that drill string can be taken with a length of 0.5 m to a maximum of 2.5 m, in particular, other lengths are also conceivable in principle.
  • a plurality of drill string members are connected together and sunk one after the other until the desired total depth is achieved.
  • the telescopic mast is rotatable relative to the main girder, starting from a central position, about the vertical axis of rotation over an angular range of up to ⁇ 90 °.
  • the center position of the telescopic mast In the center position of the telescopic mast is located substantially in the center plane of the drill, while the telescopic mast is moved in the pivoted position out of the center plane.
  • the distance of the rotary axis of the rotary head to the vertical pivot axis is greater than the largest half width of the drill. In this way, can also create holes laterally adjacent to the drill in pivoted about the vertical axis position of the telescopic mast. A conversion of the drill is not required for this.
  • the rotating device which may also be referred to as the first pivoting device, has a rotary part and a rotary drive with which the rotary part can be driven in rotation relative to the main carrier about the axis of rotation (A1).
  • the rotary drive can be designed in the form of a hydraulic rotary drive, with which the rotary member can be rotated starting from a central position clockwise or counterclockwise.
  • the telescopic mast is pivoted clockwise to the right when turning, and counterclockwise to the left when turning Side of the drill.
  • the rotating part carries the telescopic mast, which is why it can also be referred to as a supporting element.
  • the rotary member may have a flange-like plate, protrude from the two cheek-like holding parts on which further support elements are supported or stored for the mast.
  • the tilting device with which the telescopic mast is pivotable about a horizontal tilting axis (A2), is also referred to as a second pivoting device and the tilting axis also as a second pivoting axis.
  • the tilting device is mounted on the rotating device so that the former rotates together with the latter around the vertical axis.
  • the connection is preferably made via a bearing, via which a tilting part of the tilting device is pivotally mounted with the rotary part of the rotating device about the horizontal axis.
  • the tilting device further comprises the tilting drive, which is supported relative to the rotary part and serves to pivot the tilting part.
  • a third pivoting device is further provided, with which the telescopic mast about a third pivot axis (A3) is pivotable, said third pivot axis is perpendicular to the tilt axis.
  • the third pivot axis is formed by a pivot bearing on the tilting part, that is, when pivoting the tilting part, the third pivot axis is tilted together with this.
  • the telescopic mast can be swiveled by a total of three axes (A1, A2, A3).
  • the pivoting device has a carrier element, which is rotatably mounted relative to the tilting element about the third pivot axis, and a pivot drive which is supported relative to the tilting element and serves to pivot the carrier element.
  • the carrier element which is rotatably mounted relative to the tilting element about the third pivot axis
  • a pivot drive which is supported relative to the tilting element and serves to pivot the carrier element.
  • On the support element of the telescopic mast is attached.
  • the tilting device preferably comprises a hydraulic cylinder as a drive, which is arranged opposite the tilting bearing with a distance, in order to generate a torque on the tilting axis when actuated.
  • the hydraulic cylinder is pivotally connected via an articulated intermediate element with the rotary element of the rotating device.
  • a first joint allows a tilting movement of the hydraulic cylinder when tilting the mast about the tilting axis
  • a second joint allows pivotal movement of the hydraulic cylinder during lateral pivoting of the mast.
  • With its second end of the hydraulic cylinder is pivotally mounted on the support member for the telescopic mast.
  • the rotary drive for the rotating device, the tilting drive for the tilting device and / or the pivoting drive for the pivoting device are hydraulically actuated, and in particular comprise one or more hydraulic cylinders.
  • the telescopic mast comprises a first mast part and a second mast part telescopic therefor, wherein a first hydraulic cylinder is provided for moving the second mast part relative to the first mast part.
  • a slide with a rotary head for driving a drill string is attached to the telescopic mast part, wherein the carriage along the telescopic mast part by means of a second hydraulic cylinder is movable.
  • the first hydraulic cylinder for moving the telescopic mast part and the second hydraulic cylinder for moving the carriage are designed so that they can be moved at the same feed speed. This is advantageous for precise control of the drilling speed as well as the pulling speed, so that a hole can be drilled at a uniform feed rate and a suspension can be injected evenly into the ground.
  • the drill comprises a self-propelled undercarriage, in particular with a crawler or track undercarriage.
  • the chassis is spreadable in a preferred embodiment in width, each side of the chassis can be separately expanded. Due to the spreadability results in improved support and increased stability when driving.
  • support elements are hinged, which can be folded out before the drilling operation and ensure a secure state of the main carrier during drilling and good support.
  • the front support elements are each separately controlled and extendable via a hydraulic cylinder.
  • the two rear support elements are preferably actuated or extendable via a respective hydraulic cylinder.
  • These hydraulic cylinders are connected to each other via a hydraulic line, so that automatically a hydraulic compensation in the two Hydraulic cylinders adjusts. This prevents the small drill from lifting off one side during uneven ground conditions during the supporting process.
  • FIGS. 1a) to 1e show a small drill 2 for the production of holes in the ground.
  • small drill is understood in this context that this can pass through standard-sized doors, in particular, it is provided that the machine width in folded state of the individual machine elements is greater than or equal to 760 mm and the maximum height is about 1900 mm. In this way, the passage of the small drill 2 is ensured by a door opening, so that it is particularly suitable for the production of underground foundations in buildings below the building foundation.
  • the small drill 2 comprises a movable undercarriage 3 with a crawler track.
  • a main support 4 is mounted, which can be supported over a total of four pivotable about vertical axes and adjustable in height supporting elements 5, 5 'relative to a stationary floor. It is provided that the front support elements 5 are controlled separately, without hydraulic compensation with each other. In contrast, the rear support members 5 'are hydraulically connected to each other, so that they are together extendable and retractable.
  • the small-scale drilling apparatus further comprises measuring devices 10, such as a manometer or hydraulic measuring devices for the actuators, as well as measuring devices for suspensions optionally to be injected into the bore.
  • the telescopic mast 7 is adjustable in length and has for this purpose a first mast part 11 and a longitudinally displaceable relative thereto second mast part 12.
  • a carriage 13 On the second mast part 12, a carriage 13 is longitudinally movably secured to which a rotary head 14 is mounted for receiving and driving a drill string , and in the extent also can be referred to as a drill head.
  • the length L7 of the telescopic mast 7 is infinitely adjustable so that drill pipe can be taken with a length of 0.5 m to a maximum of 2.0 m.
  • FIG. 2 shows the small drill 2 from FIG. 1a ), wherein the telescopic mast 7 is pivoted relative to the main carrier 4 by means of a tilting device 15 about a tilt axis A2 by an angle ß of about 35 ° relative to the horizontal starting position.
  • the tilting device 15 is pivotally connected to a component of the rotating device 6 and supported on this.
  • the rotating device 6 comprises a rotary drive 21, which is designed in particular in the form of a hydraulic rotary transmission. By means of the rotary drive 21, the suspension of the mast 7 can be pivoted about the vertical axis A1.
  • the rotary device 6 comprises a rotary element 17, which is designed in the manner of a flange and is connected by means of a multiplicity of screw connections 18 to an underlying, rotatably drivable base body.
  • the rotary member 17 has a base plate on which two cheek-like holding parts 19, 19 'are attached.
  • the tilting device 15 further comprises a tilting drive 16, which is designed in the form of a hydraulic cylinder, wherein other tilting drives are not excluded.
  • the hydraulic cylinder 16 is pivotally mounted via an intermediate element 24 pivotally about two axes C1, C2 relative to the rotary member 17.
  • the bearing 20 allows a pivoting movement about an axis parallel to the horizontal axis A2 axis C1, while a second hinge 25 allows a pivoting movement about a second axis C2, which is perpendicular to the axis C1.
  • the upper end of the hydraulic cylinder 16 is pivotally mounted via a further joint 26 about a pivot axis C3 to a support member 27 to which the mast 7 is attached.
  • the tilting movement is accomplished by extending the hydraulic cylinder 16. Characterized in that the two bearing points C1 and C3 are spaced from the tilting axis A2, a torque is generated by the extension of the hydraulic cylinder 16 about the tilting axis A2, which leads to an erection of the support member 27 and the associated telescopic mast 7.
  • the hydraulic cylinder 16 pivots about the upper and lower bearings 20, 26.
  • the bearing 20 of the hydraulic cylinder 16 and the bearing point 22 of the tilting member 23 are both located on the rotary member 17, on different sides with respect to the vertical axis A1.
  • the rotating device 6, the tilting device 15 and the carrier element 27 connected thereto form a common structural unit, which has only one connection point with respect to the underframe, namely the rotary device.
  • the carrier element 27 is pivotably mounted relative to the tilting element 23 by means of a pivoting device 28 about a pivot axis A3.
  • the pivot axis A3, which runs perpendicular to the horizontal tilting axis A2, is formed by a pivot bearing 36 between the carrier element 27 and the tilting element 23.
  • a pivot drive 29 is provided, which in the present case comprises a hydraulic cylinder.
  • the hydraulic cylinder 29 is supported at a first end on the tilting element 23 and pivotally mounted relative to this at a bearing point 30.
  • the second end of the hydraulic cylinder 29 is mounted on the support member 27 by means of a bearing 32 and supported against it.
  • the pivoting movement is accomplished by extending the hydraulic cylinder 29.
  • the point of application of the bearing 30 is arranged on a radial projection on the pivoting element 23.
  • the pivot axis A3 is perpendicular to the tilt axis A2, and that - in the vertical working position of the telescopic mast 7 - with a small distance top of the tilt axis A2.
  • the tilting axis A2 is arranged between the pivoting plane, which is formed by the pivoting bearing 36 between the tilting element 23 and the carrier element 27, and the axis of rotation A1.
  • the first mast part 11 is held longitudinally displaceable via a guide 31.
  • an actuator 34 is provided, which is attached to the upper part of the mast part 11 and is supported with a lower end relative to the support member 27.
  • the telescopic second mast part 12 is longitudinally displaceable, which in turn carries the carriage 13 for the rotary head 14.
  • the two mast elements 11, 12 are designed as a supporting profile.
  • FIGS. 3a) to 3c show the small drill 2 in a working position in which the tilting member 23 and with this the support member 27 and the mast 7 is pivoted about the tilt axis A2 by an angle ß of 90 ° from the horizontal.
  • the mast 7 has a vertical orientation.
  • the carriage 13 has moved to an upper position, so that a drill pipe 33 (shown in dashed lines) can be accommodated in the rotary head 14.
  • a drill pipe 33 shown in dashed lines
  • FIG. 3a is at the upper end of the first mast part 11 of the actuator 34 can be seen, with which the first mast part 11 relative to the support member 27 can be moved longitudinally.
  • the actuator 34 is designed in the form of a hydraulic cylinder, which can also be referred to as a mast displacement cylinder.
  • corresponding guide rails 31 are provided, in which the base mast is guided laterally.
  • FIG 3c Further details of the small drill 2 can be seen.
  • the rotary member 17 can be seen in plan view, which can be rotated by the hydraulic rotary drive 16 about the vertical axis A1.
  • the two chain drives 35, 35 ' are laterally spreadable, so that there is good stability when driving.
  • the radius between the vertical axis A1 and the drilling axis F is greater than half the width of the crawler chassis in the spread state. In this way, holes can be laterally adjacent to the small drill 2 produce.
  • the support elements 5 can be seen, which ensure good stability during the drilling process and which support the forces introduced by the telescopic mast 7 into the base frame 4 relative to the stationary base. Thus, the suspension is not affected by these forces.
  • FIGS. 4a) to 4c show the drill 2 in a relation to the in Figure 3c ) shown position of the telescopic mast 7 by an angle ⁇ of 90 ° clockwise pivoted position.
  • the largest distance of the support element 5 located on the same side to the center plane M of the small drill corresponds approximately to the radius R of the telescopic mast or of the attached carriage including the turret. Due to the pivotability of the telescopic mast 7 about the vertical axis A1, a special flexibility with regard to the arrangement of bores to be produced is achieved. In particular, holes can be made close to building walls without having to move the drill. Overall, this results in shorter processing times.
  • FIG. 4c The comparison of Figure 4c ) with the Figure 3c ) shows that the main carrier 4 is also telescopic.
  • a first carrier part 40 can be seen, with respect to which a second carrier part 41, on which the rotary element 17 is fastened, is held in an axially displaceable manner.
  • corresponding guides and an actuator are provided between the first carrier part 40 and the second carrier part 41. Due to the displaceability of the support member 41 and the thus firmly connected rotary member 17, the latter can be brought into a position in which the vertical axis A1 is arranged at a distance from the driving value. In this way, for the telescopic mast 7 together with slide 13 and rotary head 14 allows a large pivoting range ⁇ of up to ⁇ 90 ° with respect to the vehicle center plane M.
  • FIG. 5 shows the drill according to FIG. 3b in a view from the front, with respect to the vertical Grundposistion by an angle ⁇ pivoted telescopic mast 7.
  • the pivot angle ⁇ is about 30 °, that is, the mast longitudinal axis or the rotational axis F of the rotary head 14 close with a vertical axis an angle ⁇ of about 30 °. In this pivot position can also produce obliquely directed holes.
  • the pivoting movement is accomplished by the pivoting device 28, by an extension movement of the hydraulic cylinder 29, which on the one hand and on the tilting element 23 on the other hand supported or supported on the support member 27. It is understood that any smaller but also larger angle ⁇ can be taken as the 30 ° shown.
  • FIGS. 6a) and 6b will be described together below. They show the drill 2 in a position corresponding to the FIGS. 3a) and 3b ), in contrast to these of the telescopic mast 7 in the present case moved to the highest position.
  • a first actuator 37 is provided in the form of a hydraulic cylinder, whose lower end is supported or supported on the first mast part 11 and whose upper end is supported or supported on the second mast part 12. From the hydraulic cylinder 37, the piston rod 38 can be seen, which is attached at the upper end of the telescopic mast 12 via a hinge 39. On the movable mast element 12 of the carriage 13 is also moved to the highest position.
  • first hydraulic cylinder 37 and the second hydraulic cylinder for moving the carriage 13 are designed so that they can be moved at the same feed speed. In this way, when drilling the drilling and pulling the drill string results in a constant speed in the movement between the two mast parts 11, 12 on the one hand and between the telescopic mast 12 and the carriage 13 on the other. In this way, regardless of the actuation of a first or second Hydraulic cylinder achieved a constant Bohrvorschub and a uniform entry of suspension in the ground.
  • FIG. 7 shows the drill 2 in a front view, according to the in FIG. 6b ) view.
  • FIG. 5 is the telescopic mast 7 viewed from the vertical base position in the vehicle longitudinal direction in the clockwise direction rotated by an angle ⁇ of about 30 °. That is, the mast longitudinal axis and the rotational axis F of the rotary head 14 with an vertical axis an angle ⁇ of about 30 °.
  • the pivoting movement is accomplished by the pivoting device 28, by an extension movement of the hydraulic cylinder 29, which on the one hand and on the tilting element 23 on the other hand supported or supported on the support member 27.

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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)
EP13160119.7A 2013-03-20 2013-03-20 Kleinbohrgerät Active EP2781682B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES13160119T ES2714451T3 (es) 2013-03-20 2013-03-20 Pequeño aparato de perforación
EP13160119.7A EP2781682B1 (de) 2013-03-20 2013-03-20 Kleinbohrgerät
PL13160119T PL2781682T3 (pl) 2013-03-20 2013-03-20 Małe urządzenie wiertnicze
DK13160119.7T DK2781682T3 (en) 2013-03-20 2013-03-20 Small drill bit
US14/219,387 US9657524B2 (en) 2013-03-20 2014-03-19 Drilling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13160119.7A EP2781682B1 (de) 2013-03-20 2013-03-20 Kleinbohrgerät

Publications (2)

Publication Number Publication Date
EP2781682A1 EP2781682A1 (de) 2014-09-24
EP2781682B1 true EP2781682B1 (de) 2018-12-12

Family

ID=47997073

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13160119.7A Active EP2781682B1 (de) 2013-03-20 2013-03-20 Kleinbohrgerät

Country Status (5)

Country Link
US (1) US9657524B2 (pl)
EP (1) EP2781682B1 (pl)
DK (1) DK2781682T3 (pl)
ES (1) ES2714451T3 (pl)
PL (1) PL2781682T3 (pl)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016049422A1 (en) * 2014-09-25 2016-03-31 Andrew Niemczyk Mobile drilling rig
CN106715820A (zh) * 2014-09-25 2017-05-24 安德鲁·尼姆克瑞克 移动式钻机
RU2689001C1 (ru) * 2015-10-14 2019-05-23 Сандвик Интеллекчуал Проперти Аб Выдвижное устройство, бурильная головка и способ
NL2017814B1 (en) * 2016-11-17 2018-05-25 Itrec Bv Mobile land rig for drilling and/or servicing a well
AU201710287S (en) * 2017-01-18 2017-02-08 Deep Exploration Tech Crc Limited Mobile Coiled Tubing Drilling Apparatus
USD927558S1 (en) * 2019-03-05 2021-08-10 Yamamoto Foundation Works Co., Ltd. Boring machine with casing driver
JP1722421S (ja) * 2022-01-27 2022-08-15 掘削機

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29711628U1 (de) * 1997-07-03 1997-10-23 Klemm Bohrtech Baumaschine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1885295A (en) * 1929-12-14 1932-11-01 Robinson William Thomas Mining machine
DE1483853A1 (de) 1966-11-26 1969-02-20 Masch U Bohrgeraetefabrik A W Bohrgeraet
US4627499A (en) * 1984-04-27 1986-12-09 Magee William E Mobile drilling machine
DE3625577A1 (de) 1985-09-26 1987-03-26 Heinrich Rudolf Wolf Kleinbohrgeraet
US6179068B1 (en) * 1997-05-08 2001-01-30 Flexidrill Limited Directional drilling apparatus
DE60116518D1 (de) * 2001-10-09 2006-03-30 Claude Macdonald Mehrzweckbohrwagen
DE102008037338A1 (de) * 2008-08-11 2010-02-18 Liebherr-Werk Nenzing Gmbh Ramm- und/oder Bohrvorrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29711628U1 (de) * 1997-07-03 1997-10-23 Klemm Bohrtech Baumaschine

Also Published As

Publication number Publication date
US9657524B2 (en) 2017-05-23
ES2714451T3 (es) 2019-05-28
PL2781682T3 (pl) 2019-07-31
US20140284107A1 (en) 2014-09-25
DK2781682T3 (en) 2019-04-01
EP2781682A1 (de) 2014-09-24

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