EP3215704A1 - Rammbohrvorrichtung - Google Patents
RammbohrvorrichtungInfo
- Publication number
- EP3215704A1 EP3215704A1 EP15812946.0A EP15812946A EP3215704A1 EP 3215704 A1 EP3215704 A1 EP 3215704A1 EP 15812946 A EP15812946 A EP 15812946A EP 3215704 A1 EP3215704 A1 EP 3215704A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring insert
- housing
- percussion piston
- drill head
- ram boring
- 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
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 8
- 238000009527 percussion Methods 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000002689 soil Substances 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/14—Control devices for the reciprocating piston
- B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
- E21B4/145—Fluid operated hammers of the self propelled-type, e.g. with a reverse mode to retract the device from the hole
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/06—Means for driving the impulse member
- B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
-
- 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
- E21B1/00—Percussion drilling
- E21B1/38—Hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
-
- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
-
- 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
- E21B6/00—Drives for drilling with combined rotary and percussive action
Definitions
- the invention relates to a ram boring device according to claim 1 and to a method for producing a ram boring device according to claim 9.
- Ramm boring devices are known in the art and are used in particular for the production of horizontal wells.
- Ramm boring devices are self-propelled boring devices.
- such Rammbohrvorraum has a percussion piston which is oscillated (reciprocating) within a housing and thereby, depending on the desired direction of movement of the ram boring device, bounces on a front or rear impact surface of the housing.
- the transmitted kinetic energy of the percussion piston ensures an acceleration of the ram boring device within the soil.
- Such a ram boring device is known, for example, from DE 10 2009 038 383 A1.
- the housing of the ram boring device known from DE 10 2009 038 383 A1 is made of two parts. In one part, i. the rear part, the percussion piston oscillates. The other part, i. the front part, has the drill head and is acted upon by the percussion piston. The two parts are joined together by friction welding.
- the rear part is a tube made of structural steel, which for the production of a housing portion of a ram boring a
- CONFIRMATION COPY having predetermined inner diameter.
- the front part is usually made of solid and is made of high quality steel, since the forces of the percussion piston act. After friction welding, the friction weld must be turned out consuming, so that the piston can be moved forward without an obstacle. After unscrewing the friction weld, the outer contour of the housing is also finished, so that all threads and other contours lie on one axis.
- the invention is based on the object of improving a ram boring device and a method for producing a ram boring device such that a simpler structure is made possible.
- the essence of the invention is to provide a ring insert in the impact section of the piston in the housing, which reduces the open cross-section of the housing in the region of the end of a Bohrkopf dictate acted upon by the percussion piston.
- the outer and inner contour of the ram boring machine can be produced separately from the ring insert used or to be used. Previous considerations were that the entire front part must be made of a higher quality material with a one-piece connection between the outer contour and the impact surface for the piston. These well-thought-out considerations were overcome.
- the ring insert is arranged in the housing such that it transmits at least a portion of the energy of the percussion piston to the housing.
- the ring insert may itself have an impact surface for the percussion piston and in this way transmit the mechanical energy of the percussion piston impinging on the impact surface.
- the mechanical energy can also be transmitted indirectly, for example by means of a drill head or drill bit, which is acted upon by the percussion piston, on the ring insert.
- the housing can be made for example of a tube. A costly and expensive turning out a friction weld is no longer necessary. A previously contracted to third party friction welding can be omitted. The production time is reduced. The otherwise required mechanical machining Treatments - eg honing after the usual friction welding - are no longer necessary.
- the ring insert can be arranged in the region of the impact surface for the percussion piston.
- the ring insert may further comprise the impact surface for the percussion piston of the ram boring machine.
- the corresponding housing section then no longer has to be machined mechanically after inserting the ring insert.
- the ring insert may also be rigidly or movably connected to the drill head tip, wherein the drill head tip may have the impact surface for the percussion piston, which in turn transmits the mechanical energy of the percussion piston on the ring insert and thus on the housing.
- ram boring device includes both earth displacement devices in which the drill head tip is fixedly connected to the housing and ram boring devices with axial drill head tip displaceably mounted independently of the housing
- a two-stroke device first of all the percussion piston strikes the drill head point leading in the first cycle
- a two-cycle device a better energy conversion takes place, which in particular facilitates the destruction of obstacles due to the concentration of the impact pulse on the drill bit tip ubweg of the drill head vorseilenden soil displacement, the housing remains in a quiet location, thereby ensuring a relatively good running stability.
- the ram boring device according to the invention is not limited to underground earthworks.
- lines in which a Erdbohr réelle is operated run above ground.
- the term "horizontal drilling" in the context of the present invention covers in particular any type of existing or to be created, preferably horizontal channels in a body, in particular earth channels including earth boreholes, rock holes or ground lines and underground or above-ground pipelines and sewers, which are characterized by use of a corresponding Rammbohrvorraum make, widen, destroy, cut or clean.
- ring insert is not limited to a classic ring shape, so it can also have a different shape than the circular shape or be interrupted.
- the ring insert may have an outer contour shape, which corresponds substantially to the inner contour shape of the section in which the ring insert It can be provided that the outer contour shape of the ring insert has an envelope which essentially corresponds to the inner contour shape of the section in which the ring insert is inserted.
- the ring insert is held in the section by means of a shrink connection.
- a shrink connection This creates a very simple and cost-effective way to fix the ring insert in the section or to connect with this.
- the ring insert on an outer contour, which has a larger dimension than a corresponding dimension of the inner contour of the housing portion without arranged in the housing portion ring insert.
- the ring insert can be inserted into the housing section by creating a temperature difference between the ring insert and the housing section, whereby the inner diameter is temporarily increased and / or the outer contour is temporarily reduced. This can be done, for example, by externally applied heat or cold introduced from the inside.
- the term "shrink connection" encompasses any type of connection that provides a means of placing the slightly larger ring insert in the inner diameter of the housing section A shrink connection occurs due to an oversize of the nested parts.
- the portion in which the ring insert is held has a circular diameter.
- the production can be simplified, since the ring insert can be used to the section rotationally invariant. It can be dispensed with a preferred situation when introducing the ring insert.
- the ring insert may also be formed as part of the drill head or be present separately from this.
- the ring insert can be arranged on the end side of the drill head.
- the ring insert can be arranged at the end in the housing section of the drill head or the drill head tip.
- the end arranged in the housing section Nete ring insert can be used in front of the housing section for the percussion piston.
- the ring insert has a different material than the housing.
- the possibility can be created to take into account the individual requirements of the ring insert, which may have an impact surface for the percussion piston, and the housing.
- the term "comprising" in the context of the invention encompasses the fact that a material or a component is present (the pure sense of the term), but also that the element referred to consists of the material, any impurities or residual constituents being present could be.
- the ram boring apparatus comprises a ring insert comprising a material which is heat treated.
- different properties can be set by means of the heat treatment, depending on which heat treatment of the material has been carried out. Different heat treatments can lead to different properties.
- the heat treatment may be such as to cause a sweeping microstructural transformation (annealing or hardening) and / or only a transformation on the surface of a workpiece (diffusion or coating process).
- the different heat treatments can be detected for example by means of a micrograph.
- FIG. 1 shows a front region of a ram boring device according to the invention in a sectional side view in a first embodiment.
- FIG. 2 shows a front region of a ram boring device according to the invention in a sectional side view in a second embodiment
- FIG 3 shows a front region of a ram boring device according to the invention in a sectional side view in a third embodiment
- FIG. 4 shows a front region of a ram boring device according to the invention in a sectional side view in a fourth embodiment.
- Fig. 1 the front portion of a ram boring machine according to the invention is shown in a sectional side view.
- Fig. 1 shows a first embodiment.
- the ram boring device on a housing 1, in which a percussion piston 2 is mounted oscillatingly movable.
- the percussion piston 2 is placed in the known manner by means of compressed air, which is supplied to the ram boring device at its rear end (not shown) via a compressed air line, in the oscillating motion, wherein they in the drilling operation of the ram boring device in each cycle of their movement on a front striking surface incident.
- the Rammbohrvoretti shown in Fig. 1 is a working according to the 2-stroke principle ram boring device.
- the percussion piston 2 strikes in two stages, first on a drill head tip 3, which is designed in the form of a chisel, and then on an inner insert or ring insert 4 in the housing 1.
- the drill head 3 is in the drill head 5 axially, independently of the housing 1, slidably mounted , One end of the drill bit tip
- the ring insert 4 comprises the impact surface for the percussion piston 2.
- the impact surface is formed as a base surface of a conically tapered cavity in the ring insert 4.
- the housing 1 has a circular inner contour with an inner diameter.
- the ring insert 4 has a circular outer contour with an outer diameter.
- the ring insert 4 is slightly larger in outer diameter than the inner diameter of the housing 1, provided that ring insert 4 and housing 1 are in the range of the considered section at the same temperature.
- the housing 1 may be heated and / or the ring insert 4 may have been cooled.
- the drill head 5 may correspond to the drill head disclosed in WO 2011/128045 A2 a ram boring device. In this regard, reference is made fully to WO 20 1/128045 A2.
- FIG. 2 shows an alternative embodiment with a drill head 5 inserted endwise into the housing 1, which has an inner insert or ring insert 4 which has been inserted into the housing 1 for reducing the cross section and forming an impact surface for the percussion piston 2.
- the ring insert 4 has been shrunk into the end-side portion of the housing 1. Through the ring insert 4, the drill head tip 3 extends to one end. The drill head tip 3 is the end guided and has an impact surface for the percussion piston 2.
- the embodiment shown in Fig. 2 operates on the one-stroke principle.
- FIG. 3 shows an alternative embodiment in which a ring insert 4 which is part of a drill head 5 has been inserted into the housing 1 at the end.
- the annular insert 4 of FIG. 3 is the end section of a shrunken-in front housing or drill head, which has an axially boring head tip 3 mounted so as to be displaceable independently of the housing 1.
- the embodiment shown in Fig. 3 operates on the two-stroke principle.
- the ring insert 4 and the drill head tip 3 each have an impact surface for the percussion piston 2, to which the percussion piston 2 impinges successively in a forward movement.
- WO 2011/128045 A2 to which reference is made in this respect.
- FIG. 4 shows an alternative embodiment in which a ring insert 4 which is part of a drill head 5 has been inserted into the housing 1 at the end.
- the annular insert 4 of FIG. 4 is the end section of a shrunken-in front housing or drill head 5, which has an axially boring head tip 3 mounted so as to be displaceable independently of the housing 1.
- a compression spring is arranged, which is compressed by a loading of the drill head tip 3 by means of the percussion piston 2.
- the drill head tip 3 has an impact surface for the percussion piston 2.
- the drill head tip 3 Due to the action of the drill head tip 3 by means of the percussion piston 2, the drill head tip 3 can hit the ring insert 4 after the spring arranged between the drill head tip 3 and the ring insert 4 has been at least partially compressed.
- the embodiment shown in Fig. 4 operates on the two-stroke principle. First, the percussion piston 2 impinges on the drill head tip 3. Due to the pulse transmitted by the percussion piston 2, the drill head tip 3 strikes the ring insert 4 after sufficient compression of the compression spring.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Automation & Control Theory (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15812946T PL3215704T3 (pl) | 2014-11-04 | 2015-11-04 | Urządzenie wiertnicze |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014016154.4A DE102014016154A1 (de) | 2014-11-04 | 2014-11-04 | Rammbohrvorrichtung |
PCT/EP2015/002204 WO2016070987A1 (de) | 2014-11-04 | 2015-11-04 | Rammbohrvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3215704A1 true EP3215704A1 (de) | 2017-09-13 |
EP3215704B1 EP3215704B1 (de) | 2018-10-31 |
Family
ID=54883970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15812946.0A Active EP3215704B1 (de) | 2014-11-04 | 2015-11-04 | Rammbohrvorrichtung |
Country Status (6)
Country | Link |
---|---|
US (1) | US10828763B2 (de) |
EP (1) | EP3215704B1 (de) |
AU (1) | AU2015342237B2 (de) |
DE (1) | DE102014016154A1 (de) |
PL (1) | PL3215704T3 (de) |
WO (1) | WO2016070987A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10641051B1 (en) | 2016-09-07 | 2020-05-05 | Dandelion Energy, Inc. | Systems and methods for coupling and decoupling drill heads for ground loop preparation for geothermal applications |
DE102017005767B4 (de) | 2017-06-20 | 2019-04-25 | Tracto-Technik Gmbh & Co. Kg | Erdbohrvorrichtung, Verfahren zu dessen Herstellung und Verwenden eines Fügeprozesses |
DE102019000932A1 (de) | 2019-02-11 | 2020-08-13 | Tracto-Technik Gmbh & Co. Kg | Vorrichtung zum Bohren in Erdreich, Verfahren zum Herstellen einer Vorrichtung zum Bohren in Erdreich, Verfahren zum Warten einer Vorrichtung zum Bohren in Erdreich und Verwendung einer Vorrichtung zum Bohren in Erdreich |
DE102019005132B4 (de) * | 2019-07-24 | 2023-10-19 | Tracto-Technik Gmbh & Co. Kg | Selbstgetriebener Bohrkopf |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2630891C3 (de) * | 1976-07-09 | 1979-01-04 | Paul 5940 Lennestadt Schmidt | Vorrichtung zum Verbinden eines mit einem Aufweitkonus versehenen Erdverdrängungshammers mit einem Nachziehrohr |
DE2634066C3 (de) * | 1976-07-29 | 1984-09-20 | Paul 5940 Lennestadt Schmidt | Vorrichtung für den Vor- und Rücklauf von selbstangetriebenen, pneumatischen Rammbohrgeräten |
DE3735018C2 (de) * | 1987-07-25 | 1995-02-16 | Schmidt Paul | Rammbohrgerät |
DE3911467A1 (de) * | 1989-04-08 | 1990-10-11 | Tracto Technik | Selbstantreibbares rammbohrgeraet, insbesondere fuer die herstellung von rohrfoermigen erdbohrungen |
GB9507008D0 (en) * | 1995-04-05 | 1995-05-31 | Mcloughlin Stephen J | A downhole adjustable device for trajectory control in the drilling of deviated wells |
AU753171B2 (en) * | 1998-07-08 | 2002-10-10 | Tracto-Technik Paul Schmidt Spezialmaschinen | Positive connection between a pipe and a ring inserted into the pipe |
US6371223B2 (en) * | 1999-03-03 | 2002-04-16 | Earth Tool Company, L.L.C. | Drill head for directional boring |
US6273201B1 (en) * | 2000-02-16 | 2001-08-14 | Earth Tool Company, L.L.C. | Pneumatic ground piercing tool with movable chisel head |
DE10112985B4 (de) | 2001-03-17 | 2006-03-02 | Tracto-Technik Gmbh | Schlagbohrkopf und ein Verfahren zum Horizontalbohren mit einem Schlaggerät |
US7066279B2 (en) * | 2004-11-08 | 2006-06-27 | Earth Tool Company, L.L.C. | Pneumatic ground piercing tool |
US7954565B2 (en) * | 2005-11-11 | 2011-06-07 | Tracto-Technik Gmbh | Thread retention for an earth boring device |
US8360174B2 (en) * | 2006-03-23 | 2013-01-29 | Schlumberger Technology Corporation | Lead the bit rotary steerable tool |
DE102006060320A1 (de) * | 2006-12-20 | 2008-06-26 | Robert Bosch Gmbh | Schlagwerk für eine Handwerkzeugmaschine |
US7721826B2 (en) * | 2007-09-06 | 2010-05-25 | Schlumberger Technology Corporation | Downhole jack assembly sensor |
CA2665298C (en) * | 2008-05-03 | 2016-03-01 | Earth Tool Company, Llc | Pneumatic impact tool |
DE102009038385B4 (de) * | 2009-08-24 | 2014-05-28 | Tracto-Technik Gmbh & Co. Kg | Rammbohrvorrichtung mit einem pneumatischen Antrieb und einer hydraulischen Umsteuerung der Bewegungsrichtung |
DE102009038383B4 (de) | 2009-08-24 | 2014-10-16 | Tracto-Technik Gmbh & Co. Kg | Rammbohrvorrichtung |
DE102010015465A1 (de) * | 2010-04-16 | 2011-10-20 | Tracto-Technik Gmbh & Co. Kg | Erdbohrvorrichtung |
-
2014
- 2014-11-04 DE DE102014016154.4A patent/DE102014016154A1/de not_active Withdrawn
-
2015
- 2015-11-04 PL PL15812946T patent/PL3215704T3/pl unknown
- 2015-11-04 EP EP15812946.0A patent/EP3215704B1/de active Active
- 2015-11-04 AU AU2015342237A patent/AU2015342237B2/en active Active
- 2015-11-04 US US15/524,202 patent/US10828763B2/en active Active
- 2015-11-04 WO PCT/EP2015/002204 patent/WO2016070987A1/de active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP3215704B1 (de) | 2018-10-31 |
AU2015342237B2 (en) | 2018-08-23 |
DE102014016154A1 (de) | 2016-05-04 |
PL3215704T3 (pl) | 2019-02-28 |
AU2015342237A1 (en) | 2017-06-01 |
US20170334052A1 (en) | 2017-11-23 |
WO2016070987A1 (de) | 2016-05-12 |
US10828763B2 (en) | 2020-11-10 |
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