EP3693532A1 - Dispositif de forage dans le sol, procédé de fabrication d'un dispositif de forage dans le sol, procédé d'entretien d'un dispositif de forage dans le sol et utilisation d'un dispositif de forage dans le sol - Google Patents

Dispositif de forage dans le sol, procédé de fabrication d'un dispositif de forage dans le sol, procédé d'entretien d'un dispositif de forage dans le sol et utilisation d'un dispositif de forage dans le sol Download PDF

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Publication number
EP3693532A1
EP3693532A1 EP20156549.6A EP20156549A EP3693532A1 EP 3693532 A1 EP3693532 A1 EP 3693532A1 EP 20156549 A EP20156549 A EP 20156549A EP 3693532 A1 EP3693532 A1 EP 3693532A1
Authority
EP
European Patent Office
Prior art keywords
housing
drill head
bearing
head tip
drilling
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
EP20156549.6A
Other languages
German (de)
English (en)
Other versions
EP3693532B1 (fr
Inventor
Franz-Josef Puttmann
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.)
Tracto Technik GmbH and Co KG
Original Assignee
Tracto Technik GmbH and Co KG
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 Tracto Technik GmbH and Co KG filed Critical Tracto Technik GmbH and Co KG
Publication of EP3693532A1 publication Critical patent/EP3693532A1/fr
Application granted granted Critical
Publication of EP3693532B1 publication Critical patent/EP3693532B1/fr
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
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion
    • 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
    • E21B4/003—Bearing, sealing, lubricating details
    • 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
    • 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
    • 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
    • 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
    • E21B7/26—Drilling without earth removal, e.g. with self-propelled burrowing devices

Definitions

  • the invention relates to a device for drilling in the ground, a method for producing a device for drilling in the ground, a method for servicing a device for drilling in the ground and a use of a device for drilling in the ground.
  • a striking head which has a chisel with a striking point and an anvil for the striking piston.
  • the chisel is arranged in a hole in a base, which also serves as an adapter for screwing into an impact device body.
  • the object of the invention is to provide a device for drilling in the ground, a method for producing a device for drilling in the ground, a method for maintaining a device for To create drilling in the ground and a use of a device for drilling in the ground, in which an improvement in terms of maintenance, service life and / or amortization of the costs that are expended for such a device is possible.
  • the core idea of the invention is to provide a bearing with which the drill head tip is mounted in the housing during the longitudinal movement. In this way, it can be avoided that - unlike in the prior art - the material of the drill head tip comes into direct contact with the material of the housing. Due to the harsh conditions in the field of earth drilling, steel is mostly used for the drill head tip and the housing, so that in the prior art steel rubs against steel and wear on the rod and / or on the drill head tip can occur. A bearing makes it possible for the bearing to wear, while the wear on the housing and / or the drill head tip can be kept low.
  • the invention provides a device for drilling in the ground.
  • the device has a housing and a longitudinally movable drill head tip arranged in the housing.
  • the device also has a bearing for mounting the drill head tip in the housing during the longitudinal movement.
  • soil in the context of the present description includes in particular any type of material, in particular earth, sand, rock, rock and mixed forms thereof, in the existing or to be created, preferably at least partially horizontal, channels or bores, in particular earth channels including earth bores , Rock boreholes or underground lines as well as underground or above-ground pipelines and water channels that can be created or pulled into the ground by using a suitable device for drilling.
  • a “device for drilling in the ground” is understood to mean any device which moves in particular a drill string comprising rods in an existing or to be created channel in the ground in order to create or widen a hole, in particular a horizontal hole (HD), or pipelines or others pulling long bodies into the ground.
  • the device for drilling in the ground can in particular be a high-pressure device.
  • a device for drilling in the ground can thus be a device which drives a drill string and which works in a soil-displacing manner and introduces the drill string into the soil in a translatory and / or rotary manner in the longitudinal axial direction of the drill string.
  • a borehole can be drilled into the ground by applying tension or pressure to the drill string.
  • HD horizontal drilling
  • vertical drilling in the context of the present description includes in particular an at least partially horizontally arranged bore or channel or pipeline.
  • the device for drilling in the ground can be a ram drilling device.
  • ram boring device or "earth rocket”, which is essentially used synonymously with the ram boring device, includes in the sense of the description a self-propelled percussion device which works to displace the soil and can hammer a bore, a line and / or a pipe into the ground.
  • the term ram boring device includes earth displacement devices in which the drill head tip is arranged to be longitudinally movable in a housing.
  • the drill head tip can in particular be a chisel.
  • a ram boring device can be both a one-stroke device and a two-stroke device. A three-stroke device is also possible.
  • a ram boring device can be both a single-cycle device and a device operating with several cycles, in particular a two-cycle device.
  • the percussion piston hits the drill head tip and at the same time hits the housing.
  • the percussion piston first hits the drill head tip, which runs ahead in the first cycle.
  • the housing is acted upon by the percussion piston in a subsequent cycle, in particular in the second cycle. Tip resistance and skin friction are separated in a multi-cycle device, and alternately more easily overcome.
  • a multi-cycle device in particular a two-cycle device, better energy conversion can take place, which in particular facilitates the breaking up of obstacles as a result of the concentration of the impact pulse on the drill head tip.
  • the housing As a result of the displacement of the ground leading in accordance with the stroke of the drill head tip, the housing remains in a quiet position and thereby ensures relatively good running stability.
  • the term "drill head tip” in the sense of the description is an element on the drill head side which has an outwardly directed or exposed end which comes into contact with the ground during drilling.
  • the tip of the drill head forms the front area of the drill string which, for the introduction of the earth bore into the earth, first comes into contact with the earth to be displaced.
  • the outwardly directed end of the drill head tip can have an impact point, which in particular can have a step geometry and preferably has a cutting edge.
  • the drill head tip can have a non-tapered front-side geometry.
  • the drill head tip can in particular be a chisel.
  • the drill head tip can have an end facing a percussion piston, on which the percussion piston can strike (anvil-side end of the drill head tip).
  • the drill head tip can be an attachment axially fixed in relation to the drill head tip, in particular have a step attachment.
  • the drill head tip can alternatively or additionally have an attachment that can be axially displaced with respect to the drill head tip, in particular a stepped attachment.
  • the drill head tip can be prestressed in the housing by means of a spring arranged in particular in an annular space between the drill head tip and the housing, in order to hold the drill head tip in its basic position or to move it back into it.
  • the drill head tip can be an element with which the displacement work of the device for drilling in earth can be carried out on the front side of the drill string.
  • the drill head tip is not necessarily made in one piece.
  • the drill head tip can also be formed from several segments that are arranged one behind the other in the longitudinal direction. In a preferred embodiment, the drill head tip is formed in one piece at least in the area of the housing. If there are attachments on the drill head tip, they can be designed as detachable attachments.
  • the bearing is an additional element in the housing.
  • the bearing is preferably not formed in one piece with the housing. Even if the bearing wears out, the housing and drill head tip can still be used if the bearing is replaced. It was recognized for the first time that an additional component offers an improvement in terms of the task to be solved, although it was assumed that the provision of a bearing increases the complexity and the structure.
  • the bearing is designed separately from the housing and / or separable from it.
  • the bearing preferably has a different material than the material of the housing.
  • the bearing can be manufactured as a simple rotating part or designed as such. Manufacturing by means of turning is easy to handle, precise and inexpensive.
  • the bearing can in particular be in one piece.
  • the bearing can in particular have a closed circumference, in particular a closed inner circumference.
  • the housing in the sense of the description can be designed tubular at least in sections.
  • the housing can have any cross section, which can in particular be round, circular and / or elliptical.
  • the housing preferably has a channel extending longitudinally through the housing in which the drill head tip can be arranged.
  • the longitudinal extension of the housing and the longitudinal extension of the drill head tip can correspond.
  • a percussion piston can also be arranged in the housing, in particular if the device for drilling in the ground is a ram drilling device. It is possible that the housing in which the drill head tip can be arranged can be connected to a further housing in which the percussion piston - in the case of a ram drilling device - is arranged.
  • housing is connected to a further housing, for example by a percussion piston is arranged, which can act on the drill head tip
  • a structuring in particular arranged at the end, can be provided on the housing for the drill head tip for connecting, which is designed to correspond to a structuring on the housing for the percussion piston.
  • the term housing can encompass a solid casing, in particular made of metal, in particular steel, which surrounds the drill head tip at least in sections on the circumferential side.
  • the housing can in particular be a part of a housing of a ram drilling device which can be connected to the housing in which the percussion piston is arranged.
  • the housing can be a so-called front housing, which can be connected to the housing for the percussion piston, for example by means of screwing, gluing, shrinking, or a combination of the aforementioned methods. If the housing is a section of a housing which can be connected to the housing in which the percussion piston is arranged, the housing in the connection area can have a smaller cross section than the housing in which the percussion piston is arranged. The housing in which the drill head tip is arranged can be inserted into the housing in which the percussion piston is arranged.
  • the housing in which the drill head tip is arranged is inserted into the housing in which the percussion piston is arranged, the insertion can result in the drill head tip also - at least at the end or partially - in the housing, in which the percussion piston is arranged, is arranged.
  • the housing has a receiving space in which the bearing for the drill head tip can be arranged.
  • the receiving space has the bearing for the drill head tip.
  • a bearing can be provided at a defined point, which is provided for mounting the drill head tip in the housing during the longitudinal movement.
  • the receiving space can be a space that is easy to produce and can be formed, for example, by means of a recess in the housing.
  • the receiving space can be formed by means of turning, milling, drilling, spark erosion, etc.
  • the receiving space can be a recess in the housing, which can be designed as a groove and is at least partially designed on the inside of the housing on the circumferential side.
  • the receiving space can be designed as an annular recess extending in the radial direction in the inner contour of the housing.
  • the receiving space can in particular have an unstructured or unstructured surface, i.e. substantially smooth surface.
  • the receiving space is accessible on the drill head side.
  • the receiving space can thus be accessible from the front. From the front, in relation to the advance of a device for drilling in the ground, the area which first comes into contact with the ground or which first displaces the ground.
  • the recording room can be accessible from the side that is spaced apart from the side of the housing that is spaced from the percussion piston or the anvil-side end of the drill head tip. In this way, a possibility can be created to access the bearing without dismantling the drill head tip and the housing. If necessary, attachments on the drill head tip have to be dismantled, but it is not necessary to dismantle the housing with the drill head tip or the drill head tip from the housing.
  • the bearing can easily be exchanged.
  • the drill head tip can be moved in the direction of the percussion piston in order to be able to access the bearing.
  • the receiving space can be covered by an attachment arranged on the tip of the drill head.
  • Such an attachment can be fastened to the drill head tip at a predetermined position by means of one or more fastening bolts.
  • An attachment covering the receiving space on the front side can encompass the housing on the front side.
  • a seal can be present between the housing and the attachment which creates a seal against particles and / or fluid in the contact area between the housing and the attachment. In this way it can be ensured, for example, that no dirt or the like can penetrate into the receiving space.
  • the bearing can be held in the housing by means of a corresponding fit.
  • Housing and bearing can have the same contour - once as an inner shape and once as an outer shape. In particular, there is an interference fit or fit.
  • a material bond can be formed between the housing and the bearing, in particular by means of an adhesive.
  • a threaded connection between the bearing and the housing can be dispensed with, which reduces the complexity of the structure and / or the forces that act on the housing from the bearing are reduced. Between the housing and the bearing or the bearing and the drill head tip, the forces that act in the longitudinal axial direction essentially parallel to the longitudinal axis can be kept small or are negligible.
  • the bearing acts neither on the housing nor on the drill head tip in a direction other than the radial direction.
  • the bearing has no contact surface for the drill head tip, the surface normal of which encloses an angle greater than 20 ° with the longitudinal axis of the drill head tip.
  • the function of the bearing can be reduced to a pure bearing function for a longitudinal axial movement of the drill head tip.
  • the bearing is a plain bearing or a roller bearing, a plain bearing in particular in which the parts moving relative to one another (housing and drill head tip) are in direct contact.
  • the sliding bearing can be a sliding bearing with solid friction, a sliding bearing with fluid friction or a sliding bearing with mixed friction.
  • the bearing surrounds the drill head tip at least in sections on the circumferential side, so that longitudinal axial guidance is provided.
  • the bearing can, for example, simply be introduced into the receiving space, so that the drill head tip is at least partially surrounded on the circumference by the bearing.
  • the bearing is bush-like, in particular designed as a sliding bush.
  • the bearing can thus be a tubular component which is arranged in the receiving space and receives the drill head tip with a substantially precise fit. Simple handling and manufacture of the device can be achieved in that the bearing is designed in one piece in the form of a bush.
  • the bearing as such can easily be removed as such and easily replaced again.
  • the bearing can in particular be arranged in the receiving space and designed in such a way that only sliding surfaces for the drill head tip are exposed.
  • the bearing can be designed without a stop surface which is oriented transversely to the longitudinal axis of the drill head tip.
  • the drill head tip and the bearing can only have pairs of contact surfaces which are essentially aligned along the longitudinal axis of the drill head tip.
  • An end of the bearing facing the percussion piston can be present in the receiving space without impinging on a further element of the drill head, in particular the drill head tip.
  • the bearing can essentially only be acted upon or come into contact with outer surfaces of the drill head tip aligned along the longitudinal axis of the drill head tip.
  • the bearing has several segments, whereby it can be achieved, for example, that material for the bearing is saved or different material pairings and / or lubrications over the course of the circumference by means of a liquid or lubricant and / or different segments are possible is. It is also possible to provide segments that are identical or configured identically to one another and that can be installed or exchanged individually.
  • the bearing has a material different from the drill head tip.
  • the material or the material for the bearing is selected to be “softer” than the material or the material of the drill head tip so that the wear occurs predominantly on the bearing.
  • the bearing has bronze, ie a tin alloy, white metal, ie a lead-tin alloy, a bearing metal alloyed with lead, an aluminum alloy, a plastic, for example PTFE, a ceramic that is fiber-reinforced can be, or a brass alloy.
  • bronze ie a tin alloy
  • white metal ie a lead-tin alloy
  • a bearing metal alloyed with lead an aluminum alloy
  • a plastic for example PTFE
  • a ceramic that is fiber-reinforced can be, or a brass alloy.
  • the receiving space has an extension in the longitudinal direction of the housing in the range from 10 mm to 100 mm.
  • the dimensions are chosen so that good storage of the drill head tip in the housing can be achieved, but at the same time the extension in the longitudinal direction is kept as small as possible in order to ensure access to the bearing without removing the drill head tip.
  • the extension of the receiving space in the longitudinal direction of the housing compared to the extension of the bearing in the longitudinal direction has a ratio in the range from 1.05 to 1.5.
  • This makes it possible to make the receiving space larger in the longitudinal direction than the bearing in the longitudinal direction, whereby a free space can be created in the receiving space through which access to the bearing in the receiving space can be given.
  • the free space can be used to apply an extractor or puller to the bearing and to pull the bearing out of the receiving space of the housing.
  • the bearing can preferably be arranged in a receiving space enlarged in the longitudinal direction in such a way that the bearing is flush with the front side, i.e.
  • the side facing the drill head tip on the front side is aligned so that the free space is formed on the side facing away from the front side. Tolerances are possible here, so that the bearing is also arranged offset on the front side in relation to the housing in the receiving space. Due to the greater extent of the receiving space in the longitudinal direction of the housing compared to the extent of the bearing in the longitudinal direction, the end of the bearing which is opposite the front side can be exposed or accessed.
  • the inside diameter of the housing outside the bearing is oversized compared to the outside diameter of the drill head tip, so that the bearing mainly supports the drill head tip.
  • the oversize creates the possibility that the contact between the drill head tip and the housing is as small as possible and is concentrated on the bearing.
  • the bearing is held in the housing by means of a press fit or an adhesive press fit.
  • a press fit or an adhesive press fit This enables a particularly simple connection between the bearing and the housing. In particular, no screw connection is necessarily released.
  • an extractor can be used to reach behind the bearing in order to be able to separate the bearing for replacement from the housing or, if necessary, to be able to pull it out of the receiving space.
  • the drill head tip can be pushed into the housing to such an extent that the bearing can be accessed, especially if attachments have possibly been removed. Access takes place in particular from the end of the bearing facing the slag piston.
  • An extractor can act here and pull the bearing off or out.
  • the invention also provides a method for producing a device for drilling in the ground, such as is described above, for example.
  • the method for manufacturing the device comprises the steps of: providing a housing and providing a drill head tip that is longitudinally movable in the housing, and arranging the drill head tip in the housing. Between the housing and the drill head tip, a bearing for the drill head tip for longitudinal movement is introduced.
  • the invention also provides a method for maintaining a device for drilling in the earth, in particular as described above, the method comprising the steps of: providing the device, which has a housing and a drill head tip which is longitudinally movable in the housing; access a bearing arranged between the housing and the drill head tip and pulling the bearing off.
  • the term "access” is understood to mean removing the bearing and / or inserting the bearing which, in connection with the removal of the bearing, describes removal of the bearing from the housing, in which the bearing can be separated from the housing without loosening a screw connection .
  • the aspect of the method for servicing a device for drilling in the ground relates in an analogous manner to the statements relating to the aspect of the device for drilling in the ground itself.
  • the construction and configuration of the device resulting from this is also reflected in the method for maintenance. For example, in the method for maintaining the device for drilling in the ground, it can be taken into account that, in particular, a bearing accessible on the drill head side can be accessed.
  • the invention also provides a use of a device for drilling in the earth, which device has a housing and a longitudinally movable drill head tip arranged on the housing, and uses a bearing for the drill head tip.
  • the naming of a numerical value includes not only the actual numerical value, but also - in order to take into account manufacturing tolerances in particular - a range around the specific numerical value that is +/- 15%, preferably +/- 10%, of the specified numerical value can.
  • Fig. 1 shows a drill head-side section of a device for drilling in the ground.
  • a drill head tip 1 which is arranged in a housing 2.
  • a receiving space 3 is formed in the housing 2 at the end.
  • the receiving space 3 is accessible from the drill head side, ie from the front.
  • a bearing 4 is arranged in the receiving space 3.
  • the receiving space 3 with the bearing 4 is covered on the front side by means of an attachment 5 attached to the drill head tip 1.
  • a further attachment 6 which is movable along the axis and which is also connected to the drill head tip 1 is provided. If the attachments 5 and 6 are removed, the bearing 4 in the receiving space 3 can be accessed without the drill head tip 1 having to be dismantled.
  • An annular circumferential seal 25, which is arranged in a corresponding groove, is provided for sealing between the attachment 5 and the housing 2.
  • the housing 2 is connected to a housing 7 in which an impact piston 10 is arranged.
  • the drill head tip 1 has an exposed end which comes into contact with the ground.
  • an anvil 8 is formed, which can be acted upon by the percussion piston 10.
  • annular spring 9 is provided, which is arranged between the drill head tip 1 and the housing 2.

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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)
EP20156549.6A 2019-02-11 2020-02-11 Dispositif de forage dans le sol, procédé de fabrication d'un dispositif de forage dans le sol, procédé d'entretien d'un dispositif de forage dans le sol et utilisation d'un dispositif de forage dans le sol Active EP3693532B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019000932.0A DE102019000932A1 (de) 2019-02-11 2019-02-11 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

Publications (2)

Publication Number Publication Date
EP3693532A1 true EP3693532A1 (fr) 2020-08-12
EP3693532B1 EP3693532B1 (fr) 2023-01-25

Family

ID=69571790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20156549.6A Active EP3693532B1 (fr) 2019-02-11 2020-02-11 Dispositif de forage dans le sol, procédé de fabrication d'un dispositif de forage dans le sol, procédé d'entretien d'un dispositif de forage dans le sol et utilisation d'un dispositif de forage dans le sol

Country Status (5)

Country Link
US (1) US11280134B2 (fr)
EP (1) EP3693532B1 (fr)
AU (1) AU2020200965B2 (fr)
DE (1) DE102019000932A1 (fr)
PL (1) PL3693532T3 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2157259B1 (de) * 1971-11-18 1972-11-09 Tracto Technik Rammbohrgerät
DE2756567A1 (de) * 1977-12-19 1979-06-21 Jenne Gustav Steuervorrichtung fuer den vor- und ruecklauf von selbstgetriebenen pneumatischen rammbohrgeraeten
US5226487A (en) * 1990-02-07 1993-07-13 Mbs Advanced Engineering Systems Pneumopercussive machine
DE10112985A1 (de) 2001-03-17 2002-10-02 Tracto Technik Schlagbohrkopf
US20030024739A1 (en) * 1999-03-03 2003-02-06 Vermeer Manufacturing Company Method and apparatus for directional boring under mixed conditions
US20110123292A1 (en) * 2005-11-11 2011-05-26 Tracto-Technik Gmbh Thread retention for an earth boring device
US20140346840A1 (en) * 2011-09-15 2014-11-27 Sandvik Mining And Construction Oy Tool for breaking hammer, breaking hammer, and use thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3735018C2 (de) * 1987-07-25 1995-02-16 Schmidt Paul Rammbohrgerät
US5794516A (en) * 1995-08-30 1998-08-18 Ingersoll-Rand Company Piston for a self-lubricating, fluid-actuated, percussive down-the-hole drill
US7721826B2 (en) * 2007-09-06 2010-05-25 Schlumberger Technology Corporation Downhole jack assembly sensor
US8800690B2 (en) * 2008-03-31 2014-08-12 Center Rock Inc. Down-the-hole drill hammer having a reverse exhaust system and segmented chuck assembly
DE102014016154A1 (de) 2014-11-04 2016-05-04 Tracto-Technik Gmbh & Co. Kg Rammbohrvorrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2157259B1 (de) * 1971-11-18 1972-11-09 Tracto Technik Rammbohrgerät
DE2756567A1 (de) * 1977-12-19 1979-06-21 Jenne Gustav Steuervorrichtung fuer den vor- und ruecklauf von selbstgetriebenen pneumatischen rammbohrgeraeten
US5226487A (en) * 1990-02-07 1993-07-13 Mbs Advanced Engineering Systems Pneumopercussive machine
US20030024739A1 (en) * 1999-03-03 2003-02-06 Vermeer Manufacturing Company Method and apparatus for directional boring under mixed conditions
DE10112985A1 (de) 2001-03-17 2002-10-02 Tracto Technik Schlagbohrkopf
US20110123292A1 (en) * 2005-11-11 2011-05-26 Tracto-Technik Gmbh Thread retention for an earth boring device
US20140346840A1 (en) * 2011-09-15 2014-11-27 Sandvik Mining And Construction Oy Tool for breaking hammer, breaking hammer, and use thereof

Also Published As

Publication number Publication date
US20200256126A1 (en) 2020-08-13
PL3693532T3 (pl) 2023-03-20
AU2020200965A1 (en) 2020-08-27
DE102019000932A1 (de) 2020-08-13
US11280134B2 (en) 2022-03-22
EP3693532B1 (fr) 2023-01-25
AU2020200965B2 (en) 2022-01-27

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