EP1361333A2 - Dispositif de forage du sol - Google Patents

Dispositif de forage du sol Download PDF

Info

Publication number
EP1361333A2
EP1361333A2 EP03008467A EP03008467A EP1361333A2 EP 1361333 A2 EP1361333 A2 EP 1361333A2 EP 03008467 A EP03008467 A EP 03008467A EP 03008467 A EP03008467 A EP 03008467A EP 1361333 A2 EP1361333 A2 EP 1361333A2
Authority
EP
European Patent Office
Prior art keywords
drill string
drilling tool
pressure
machine according
boring machine
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.)
Granted
Application number
EP03008467A
Other languages
German (de)
English (en)
Other versions
EP1361333A3 (fr
EP1361333B1 (fr
Inventor
Werner Dipl.-Ing. Harthauser (Fh)
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
Publication of EP1361333A2 publication Critical patent/EP1361333A2/fr
Publication of EP1361333A3 publication Critical patent/EP1361333A3/fr
Application granted granted Critical
Publication of EP1361333B1 publication Critical patent/EP1361333B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • E21B7/022—Control of the drilling operation; Hydraulic or pneumatic means for activation or operation

Definitions

  • the invention relates to an earth drilling machine according to the preamble of claim 1 for creating holes.
  • a rotatable drivable drilling tool with adjustable Tool components for such an earth drilling machine is out the prior art known from JP 60-168813 A.
  • actuating devices which are operated hydraulically.
  • the hydraulic Signal pressure for the control device is provided by one on the earth drilling machine provided pressure supply provided that is in flow connection with the actuating device.
  • the pressure supply due to the high to be generated hydraulic signal pressures a corresponding size and has an appropriate weight, it is usually not provided directly on the drilling tool, but removed of this, for example, on the superstructure of the earth drilling rig arranged.
  • the flow connection between the Pressure supply and the drilling tool rotating during operation is realized with a so-called rotating union, which is a flow connection with the drilling tool rotating allows.
  • hydraulically actuated actuating device A hydraulic oil is used, must be used with the Take care that, despite the guaranteed high set pressures occurring during operation is that no hydraulic oil from the rotary union leaks to environmental pollution from the hydraulic oil to avoid.
  • a sufficiently high sealing effect is achieved with the known rotary unions, the rotary unions must be manufactured with very high precision be and are accordingly expensive. Further must the rotating unions due to the extreme loads that they encounter during operation are frequently serviced.
  • the invention solves the problem with an earth drilling device the features of claim 1.
  • the hydraulics of the actuator separate from the actual one Pressure supply, the signal pressure for the actuating device provides to train. Furthermore strikes the invention, at least for the transmission of the signal pressure an environmentally friendly one in the area of the rotating union To use fluid. To do this, the pressure supply creates the desired signal pressure, that of the environmentally friendly Fluid through the rotating union to the actuator is forwarded. To convert the signal pressure of the environmentally friendly Fluids in the hydraulic signal pressure a converter is provided for the actuating device.
  • Earth drilling rig proposed as environmentally friendly Fluid to use a gaseous fluid.
  • This has the advantage that if there are any leaks the fluid on the rotary union without residues can escape.
  • compressed air generator When using compressed air as a gaseous, environmentally friendly Fluid is used as a pressure supply proposed a compressed air generator with which the desired compressed air is to be generated. For the sake of one it is easier to use and also for maintenance reasons it is advantageous if the compressed air generator immediately is held on the superstructure of the earth drilling machine.
  • compressed air used as an environmentally friendly fluid serves as An air motor driven by compressed air and one hydraulic pump coupled to the air motor for generation the hydraulic pressure for the actuator.
  • liquid Fluid instead of gaseous, environmentally friendly fluids also liquid, environmentally friendly fluids, such as Water, can be used, the use of liquid Fluid has the advantage that the fluid essentially is not compressible and accordingly that of the fluid transmitted signal pressure of the pressure supply immediately the hydraulics of the actuator can be transferred.
  • Earth drilling rig is the drilling tool on one to the drive head relatively extendable and retractable drill string held.
  • the drill string serves on the one hand as a holder for the drilling tool and on the other hand for Transfer the torque generated by the drive head to the drilling tool.
  • the use of an extendable and retractable Drill string has the advantage of being comparative deep holes, such as when creating of holes for foundation piles are created can be.
  • As an extendable and retractable drill string especially the use of a telescopic Kelly bar proposed.
  • the rotary union to keep on the drill string.
  • the Rotary feed-through a feed that is rotatably mounted on the drill string to supply the environmentally friendly fluid, which is supported on the output head, and one with the feed sealingly coupled coupling unit, which is attached to the rotatable drill string. While over the Feed the environmentally friendly fluid into the rotating union arrives, enables the sealingly coupled training the transition between the feed and the coupling unit overflow of the fluid from the feed into the coupling unit rotating with the drill string, which the fluid is in fluid communication with stationary converter.
  • hose lines To transfer the hydraulic pressure from the converter into the Actuator is the use of a hose line proposed.
  • the use of hose lines has the Advantage that the actuating device can be moved relative to the converter can be formed, resulting in a higher Flexibility in the design of the drilling tool results.
  • the converter and a retractor for the hose line are provided on the drill string, which are with the Turn the drill string along and to which the drill string with Drilling tool is relatively retractable and extendable.
  • the retractor is designed in this embodiment that the hose line from the retractor that the hose line can be unrolled and rolled up in any position of the drill string below a given one Tension is there. In this way it is achieved that the actuator supplying hydraulic pressure Hose line always in a defined position relative runs to the drill string so that even when immersed of the drilling tool in the bore, the hose line comes into contact with the drilling walls and if necessary is damaged.
  • Embodiment of the retractor proposed to preload them with spring force.
  • Fig. 1 shows a side view of an earth boring machine 10, which in conventionally from a trained as a caterpillar carriage Undercarriage 12 and one rotatably mounted thereon Superstructure 14 is formed.
  • the upper carriage 14 is conventional Way, a drilling mast 16 is pivoted, the corresponding the given ground conditions relative to the superstructure 14 can be aligned.
  • a drive head 18 is displaceable along the drilling mast 16 stored in its position along the Drill mast 16 can be adjusted.
  • the drive head 18 serves to rotatably drive a drill string 20, which runs parallel to the mast 16 and through the drive head 18 is passed.
  • the drill string 20 is composed of a telescopic Kelly rod 22 and an am lower end of the Kelly rod 22 held drilling tool 24 educated.
  • the drilling tool 24 is as Pile foot cutter trained with the one already existing hole at the lower end of the hole a hole extension can be created.
  • the drilling tool 24 has several adjustable tool components 26 equipped with hydraulic actuatable actuators 28 relative to the drilling tool 24 are adjustable. In the present case it is cutting tools that radially outward from the Pile foot cutters can be adjusted. Instead of The pile foot cutter shown can also use other drilling tools with adjustable tool components, for example a Kelly drill, a gripper or the like, as Drilling tool 24 are used.
  • adjustable tool components 26 equipped with hydraulic actuatable actuators 28 relative to the drilling tool 24 are adjustable. In the present case it is cutting tools that radially outward from the Pile foot cutters can be adjusted.
  • the pile foot cutter shown can also use other drilling tools with adjustable tool components, for example a Kelly drill, a gripper or the like, as Drilling tool 24 are used.
  • a rotating Platform 30 is provided, which on the drive head 18 in is stored in a known manner and upon rotation of the Drill string 20 is carried by drill string 20.
  • a rotary feedthrough 32 is also provided, the structure of which hereinafter with reference to FIGS. 2 and 3 in more detail is explained.
  • the rotary feedthrough 32 has a feed 34 which is rigidly connected to the drive head 18 and not rotates together with the drill string 20.
  • the feeder 34 is sealingly engaged with a coupling unit 36, which is positioned below the feeder 34 and from the co-rotating platform 30 is carried.
  • the rotary union 32 serves as a flow connection between the non-rotating part of the drive head 18 and the while of the rotating drill string 20.
  • the feed 34 is in the illustrated embodiment with a compressed air generator provided on the superstructure 14 38 connected, which, as will be explained later, Compressed air generated to provide a signal pressure.
  • Each converter 40 is in flow connection with the coupling unit 36, through the compressed air from the compressed air generator 38 about a hose system, not shown, and the feed 34 arrives in the converter 40.
  • each converter 40 becomes the signal pressure set by the compressed air generator 38 into a hydraulic pressure for the hydraulically operated Actuators 28 converted. This hydraulic pressure is via hoses 42 to the actuators 28 of the Transfer drilling tool 24.
  • each tube 42 is one Retractor 44 rolled up on either side of the drill string 20 rotatably mounted on the rotating platform 30 are.
  • the hoses 42 are then through one at the bottom End of the outer tube of the Kelly rod 22 provided Guide ring 46 out and to the various Actuators 28 of the drilling tool 24 connected.
  • the drive head 18 drives the Kelly bar 22 so that they can use their drilling tool 24 their longitudinal axis rotates.
  • the compressed air generator 38 generates a corresponding excess pressure, of a corresponding valve arrangement (not shown) and via corresponding line systems in the Feed 34 of the rotary union 32 is forwarded.
  • the feed 34 transmits the signal pressure to the clutch unit 36, which in turn sends the signal pressure to the converter 40 forwards.
  • the transducers 40 convert the pneumatic Signal pressure into a hydraulic signal pressure, which by the hoses 42 to the hydraulic actuators 28 is forwarded accordingly the tool components according to the set pressure conditions Press 26.
  • the rotary union 32 By separating the hydraulic circuit from the hydraulic actuating devices 28 of the drilling tool 24 to be actuated and the transmission of the signal pressure using compressed air can the rotary union 32 be made relatively simple because there are any leaks at the rotating union 32 have no negative effects, at best to a slight pressure drop in the compressed air system would lead.
  • the signal pressure generated with the help of a compressed air generator is also possible to start with the signal pressure in a conventional manner Way through a hydraulic cylinder or a Generate hydraulic unit and then using corresponding converter first in a pneumatic Convert pressure to the signal pressure through the Pneumatically transfer rotating union. Subsequently can then the pneumatic signal pressure in the previously described Way back into a hydraulic signal pressure being transformed.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Earth Drilling (AREA)
EP20030008467 2002-05-02 2003-04-11 Dispositif de forage du sol Expired - Lifetime EP1361333B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10219757 2002-05-02
DE2002119757 DE10219757C1 (de) 2002-05-02 2002-05-02 Erdbohrgerät

Publications (3)

Publication Number Publication Date
EP1361333A2 true EP1361333A2 (fr) 2003-11-12
EP1361333A3 EP1361333A3 (fr) 2004-10-20
EP1361333B1 EP1361333B1 (fr) 2006-06-14

Family

ID=7714481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030008467 Expired - Lifetime EP1361333B1 (fr) 2002-05-02 2003-04-11 Dispositif de forage du sol

Country Status (3)

Country Link
EP (1) EP1361333B1 (fr)
DE (2) DE10219757C1 (fr)
HK (1) HK1056589A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979453A (zh) * 2012-11-26 2013-03-20 上海中联重科桩工机械有限公司 动力头压盘及具有其的动力头式钻孔设备
CN110468897A (zh) * 2019-08-22 2019-11-19 山河智能装备股份有限公司 双轮铣槽机及其导杆

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008006226U1 (de) 2008-04-24 2008-07-31 Zauder, Angelika Anbaugerät
DE102008022385A1 (de) 2008-04-24 2009-10-29 Angelika Zauder Anbaugerät
EP2696027B1 (fr) 2012-08-06 2016-06-15 BAUER Spezialtiefbau GmbH Seau de forage et procédé de forage d'un trou de forage
EP2740882B1 (fr) 2012-12-04 2016-09-21 BAUER Maschinen GmbH Dispositif de forage et procédé de création d'un trou de forage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3799276A (en) * 1971-10-30 1974-03-26 Kumagai Gumi Co Ltd Fluid driven below ground motor for sinking a caisson
US4526242A (en) * 1981-04-07 1985-07-02 Elisabeth Hochstrasser geb. Wack Drilling device
US5219246A (en) * 1988-08-29 1993-06-15 Catawa Pty. Ltd. Drills for piles and soil stabilization, and drilling method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60168813A (ja) * 1984-02-13 1985-09-02 Hitachi Constr Mach Co Ltd ア−スドリル工法による拡底杭の拡底部掘削装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3799276A (en) * 1971-10-30 1974-03-26 Kumagai Gumi Co Ltd Fluid driven below ground motor for sinking a caisson
US4526242A (en) * 1981-04-07 1985-07-02 Elisabeth Hochstrasser geb. Wack Drilling device
US5219246A (en) * 1988-08-29 1993-06-15 Catawa Pty. Ltd. Drills for piles and soil stabilization, and drilling method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979453A (zh) * 2012-11-26 2013-03-20 上海中联重科桩工机械有限公司 动力头压盘及具有其的动力头式钻孔设备
CN102979453B (zh) * 2012-11-26 2015-06-03 上海中联重科桩工机械有限公司 动力头压盘及具有其的动力头式钻孔设备
CN110468897A (zh) * 2019-08-22 2019-11-19 山河智能装备股份有限公司 双轮铣槽机及其导杆

Also Published As

Publication number Publication date
DE50303775D1 (de) 2006-07-27
HK1056589A1 (en) 2004-02-20
EP1361333A3 (fr) 2004-10-20
EP1361333B1 (fr) 2006-06-14
DE10219757C1 (de) 2003-07-24

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