EP3693532B1 - 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
EP3693532B1
EP3693532B1 EP20156549.6A EP20156549A EP3693532B1 EP 3693532 B1 EP3693532 B1 EP 3693532B1 EP 20156549 A EP20156549 A EP 20156549A EP 3693532 B1 EP3693532 B1 EP 3693532B1
Authority
EP
European Patent Office
Prior art keywords
housing
bearing
head tip
drill head
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.)
Active
Application number
EP20156549.6A
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German (de)
English (en)
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EP3693532A1 (fr
Inventor
Franz-Josef Püttmann
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.)
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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 maintaining a device for drilling in the ground and the use of a device for drilling in the ground.
  • a percussion head which has a chisel with a percussion tip and an anvil for the percussion piston.
  • the chisel is arranged in a bore of a base, which at the same time serves as an adapter for screwing into a percussion device body.
  • U.S. 2011/123292 discloses an earth boring device with a housing in which a percussion piston is driven in an oscillating manner under the influence of compressed air and periodically strikes a striking surface of the firing pin, which is movably connected to the housing via a threaded ring.
  • the thread connection between the ring nut and the housing is secured by means of a safety bolt.
  • the invention is based on the object of providing 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 To provide drilling in soil and a use of a device for drilling in soil, in which an improvement in terms of maintenance, service life and/or amortization of the costs 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. This can prevent the material of the drill head tip from coming into direct contact with the material of the housing. Due to the harsh conditions present in earth drilling, steel is mostly used for the drill head tip and the housing, so that in the prior art steel rubs on steel and there can be wear on the rods and/or on the drill head tip. A bearing can create the possibility that the bearing wears out, while the wear on the housing and/or the drill head tip can be kept low.
  • the invention provides a device for drilling in soil.
  • the device has a housing and a longitudinally movable drill head tip arranged in the housing.
  • the device also has a bearing for supporting the drill head tip in the housing during longitudinal movement.
  • soil in the sense of the present description includes in particular any type of material, in particular earth, sand, rock, stone 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 drilling or earth lines as well as underground or above-ground pipelines and water channels, which can be made or installed by using an appropriate device for drilling in the ground.
  • a “device for drilling in the ground” is understood to mean any device which moves a drill string containing rod sections in an existing or to be created channel in the ground in order to create or widen a bore, in particular a horizontal bore (HD), or pipelines or others to pull long bodies into the ground.
  • the device for drilling in the ground can in particular be an HD device.
  • a device for drilling in soil can thus be a device that drives a drill string, 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 hole can be drilled into the ground by applying tension or pressure to the drill string.
  • HD horizontal drilling
  • vertical drilling in the sense 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 drilling device or "earth rocket”, which is essentially used synonymously with the ram drilling device, includes, in the context of the description, a self-propelled impact device which works in a soil-displacing manner and can hammer a hole, a line and/or a pipe into the soil.
  • the term ram drilling device includes earth displacement devices in which the drill head tip is arranged in a housing so that it can move longitudinally.
  • the drill head tip can in particular be a chisel.
  • a ram drilling device can be either a one-stroke device or 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 working with multiple cycles, in particular a two-cycle device.
  • a single-stroke device the percussion piston hits the drill head tip and the housing at the same moment.
  • the percussion piston first strikes the drill head tip, which rushes ahead in the first stroke.
  • the housing is acted upon by the percussion piston. Tip drag 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 smashing of obstacles as a result of the concentration of the impact impulse on the tip of the drill head.
  • the housing remains in a still position and thus ensures relatively good running stability.
  • bit bit is a bit-side member having an outwardly directed or exposed end which comes into contact with the ground during drilling.
  • the drill head tip forms the front area of the drill string, which is the first area to come into contact with the earth to be displaced when the earth bore is drilled into the earth.
  • the outwardly directed end of the drill head tip can have a striking tip, which in particular can have a stepped geometry and preferably has a cutting edge.
  • the drill bit tip may have a non-tapered front geometry.
  • the drill head tip can in particular be a chisel.
  • the drill head tip can have an end facing a percussion piston, which the percussion piston can strike (end of the drill head tip on the anvil side).
  • the drill head tip can have an attachment that is axially fixed with respect to the drill head tip, in particular have a step attachment. Alternatively or additionally, the drill head tip can have an attachment that is axially displaceable 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 bit tip may be an element that allows the displacement work of the soil drilling device to be performed in front 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 designed 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 not integral with the housing. Even if the bearing wears out, under certain circumstances the housing and drill head tip can still be used if the bearing is replaced. It was recognized that an additional component offered an improvement in terms of the task to be solved, although it was assumed that the provision of a bearing would increase the complexity and structure.
  • the bearing is designed separately from the housing and/or separable from it, in particular within the meaning of the description.
  • the bearing is preferably made of a different material than the material of the housing.
  • the bearing can be manufactured or designed as a simple turned part. Manufacturing by turning is easy to handle, accurate 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 within the meaning of the description can be configured in a tubular manner, at least in sections.
  • the housing can have any desired 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 soil 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 boring device—is arranged.
  • housing is connected to another housing, for example by a percussion piston is arranged, which can act on the drill head tip
  • a structure for connecting in particular arranged at the end, can be provided on the housing for the drill head tip, which structure is designed to correspond to a structure on the housing for the percussion piston.
  • the term housing can include a solid casing, in particular made of metal, in particular made of steel, surrounding the drill head tip at least in sections on the circumference.
  • 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 can have a smaller cross section in the connection area 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 may 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 turning, milling, drilling, spark erosion, etc.
  • the receiving space is a recess in the housing, which can be designed as a groove and is formed at least partially on the inside of the housing on the circumferential side.
  • the receiving space can be designed as an annular depression extending in the radial direction in the inner contour of the housing.
  • the receiving space can in particular have a non-structured or unstructured surface, i.e. a substantially smooth surface.
  • the receiving space is accessible on the drilling head side.
  • the receiving space can thus be accessible from the front.
  • the front is the area which first comes into contact with the soil or first displaces the soil.
  • the recording room may be accessible from the side spaced from the side of the housing spaced from the percussion piston or the anvil-side end of the drill bit tip. This can provide a way to access the bearing without disassembling the drill head tip and 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 be easily replaced.
  • 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 attached to the drill head tip at a predetermined position by means of one or more attachment bolts.
  • An attachment that covers the receiving space at the front can enclose the housing at the front.
  • a seal can be present between the housing and the attachment, which seal 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 an appropriate fit.
  • the housing and bearing can have the same contour—on the one hand as an inner shape and on the other hand as an outer shape. In particular, there is an interference fit or snug fit.
  • a material connection 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 eliminated, which reduces the complexity of the construction and/or reduces the forces acting on the housing from the bearing.
  • 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 whose surface normal 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 being particularly preferred in which the parts (housing and drill head tip) that move relative to one another are in direct contact.
  • the plain bearing can be a plain bearing with solid-state friction, a plain bearing with liquid friction or a plain bearing with mixed friction.
  • the bearing surrounds the drill head tip at least in sections on the circumference, so that a longitudinal-axial guidance is provided.
  • the bearing can, for example, simply be introduced into the receiving space, so that the drill head tip is surrounded at least in sections on the peripheral side by the bearing.
  • the bearing is designed in the manner of a bush, in particular as a slide bush.
  • the bearing can thus be a tubular component which is arranged in the accommodation space and accommodates the drill head tip with an essentially 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. As such, the bearing can be easily removed as a whole and can also be easily replaced again.
  • the bearing can in particular be arranged and designed in the receiving space in such a way that only sliding surfaces for the drill head tip are exposed.
  • the bearing can be designed without a stop face that is aligned transversely to the longitudinal axis of the drill head tip.
  • Drill bit and bearing may only have pairs of contact surfaces that are substantially aligned along the longitudinal axis of the drill bit.
  • An end of the bearing facing the percussion piston can be present in the receiving space without acting 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 the outer surfaces of the drill head tip aligned along the longitudinal axis of the drill head tip.
  • the bearing has several segments, whereby material for the bearing can be saved or different material pairings and/or lubrication over the course of the circumference by means of a liquid or lubricant and/or different segments can be achieved is. It is also possible to provide segments that are the same or have the same design as one another and that can be installed or replaced individually.
  • the bearing has a different material 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 predominantly occurs on the bearing.
  • the bearing comprises 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 fiber-reinforced ceramic can be, or a brass alloy.
  • the receiving space extends in the longitudinal direction of the housing in the range from 10 mm to 100 mm.
  • the dimensions are chosen so that the drill head tip can be well supported in the housing, 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 extent of the receiving space in the longitudinal direction of the housing compared to the extent of the bearing in the longitudinal direction has a ratio in the range from 1.05 to 1.5.
  • This can create the possibility that the receiving space is designed larger in the longitudinal direction than the bearing is designed in the longitudinal direction, whereby a free space can be created in the receiving space via which access to the bearing in the receiving space can be given.
  • the free space can be used to attach 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 that is enlarged in the longitudinal direction in such a way that the bearing is flush with the front side, i.e.
  • the bearing is also arranged at the front offset to the housing in the receiving space. Due to the greater extension of the accommodation space in the longitudinal direction of the housing compared to the extension of the bearing in the longitudinal direction, the end of the bearing opposite to the front side can be exposed and accessed.
  • the inside diameter of the housing outside of the bearing is oversized compared to the outside diameter of the drill head tip, so that the drill head tip is predominantly supported by the bearing. In the area outside the bearing, the possibility is created by the oversize 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 loosened.
  • an extractor or puller can be used to reach behind the bearing to be able to separate the bearing from the housing for replacement or, if necessary, to be able to pull it out of the receiving space.
  • the drill head tip in particular if attachments have been removed if necessary, can be pushed into the housing to such an extent that the bearing can be accessed. Access is in particular from the end of the bearing facing the slag piston.
  • An extractor or puller can attack here and pull off or pull out the bearing.
  • the invention also provides a method of manufacturing a device for drilling in soil, such as that described above.
  • the method for producing the device comprises the steps: 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. A bearing for the drill bit for longitudinal movement is introduced between the housing and the drill bit bit.
  • the invention also provides a method for servicing a device for drilling in soil, in particular as described above, the method comprising the steps of: providing the device, which has a housing and a drill head tip movable longitudinally in the housing; accessing a bearing located between the housing and the drill bit tip and withdrawing the bearing.
  • access is understood to mean a removal of the bearing and/or an insertion of the bearing, which, in connection with the removal of the bearing, describes a 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 maintaining a device for drilling in the ground relates in an analogous manner to the explanations regarding the aspect of the device for drilling in the ground itself.
  • the resulting construction and configuration of the device is also reflected in the maintenance method. 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 that is accessible on the drill head side can be accessed.
  • the invention also provides a use of a device for drilling in soil, which 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, which is +/-15%, preferably +/-10%, of the specified numerical value can.
  • the term “have” includes both the meaning inherent in the term, that further elements can be provided in addition to the elements mentioned (non-exhaustive list), but also the meaning that the term “have” is synonymous with “consist of” or “formed from” is used.
  • 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 for storing the drill head tip 1 .
  • 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 at the front by means of an attachment 5 attached to the drill head tip 1 .
  • another attachment 6 that can be moved along the longitudinal axis is provided, which is also connected to the drill head tip 1 . 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 a percussion 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 on the end of the drill head tip 1 that is exposed to the soil and can be acted upon by the percussion piston 10 .
  • An annular spring 9 which is arranged between the drill head tip 1 and the housing 2 , is provided for prestressing the drill head tip 1 relative to 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)

Claims (10)

  1. Dispositif de forage dans le sol présentant
    - un boîtier (2) et
    - une pointe de tête de forage (1) mobile longitudinalement, disposée dans le boîtier (2), dans lequel un palier (4) pour le montage de la pointe de tête de forage (1) dans le boîtier (2) lors du mouvement longitudinal est présent en tant qu'élément supplémentaire dans le boîtier (2), dans lequel un espace de réception (3) est prévu sous forme de renfoncement dans le boîtier (2), dans lequel l'espace de réception (3) présente le palier (4) pour la pointe de tête de forage (1) et est accessible côté tête de forage,
    caractérisé en ce que le palier (4) est maintenu dans le boîtier (2) au moyen d'un ajustement correspondant et/ou d'une liaison collée entre le boîtier (2) et le palier (4).
  2. Dispositif selon la revendication 1, caractérisé en ce que le dispositif est un dispositif de forage par battage.
  3. Dispositif selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le palier (4) entoure au moins par sections la pointe de tête de forage (1) sur sa périphérie.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le palier (4) présente plusieurs segments.
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le palier (4) présente un matériau différent de celui de la pointe de tête de forage (1), notamment du bronze, du métal blanc, un métal de palier allié au plomb, un alliage d'aluminium, une matière plastique, de la céramique qui peut être renforcée par des fibres, ou un alliage de laiton.
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'espace de réception (3) présente une extension dans la direction longitudinale du boîtier (2) dans la plage de 10 mm à 100 mm.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'extension de l'espace de réception (3) dans la direction longitudinale du boîtier (2) présente un rapport dans la plage de 1,05 à 1,5 par rapport à l'extension du palier (4) dans la direction longitudinale.
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le diamètre intérieur du boîtier (2), à l'extérieur du palier (4), présente un surdimensionnement par rapport au diamètre extérieur de la pointe de tête de forage (1).
  9. Procédé de fabrication d'un dispositif de forage dans le sol, en particulier d'un dispositif selon l'une quelconque des revendications 1 à 8, présentant les étapes consistant à :
    fournir un boîtier (2),
    fournir une pointe de tête de forage (1) mobile longitudinalement dans le boîtier (2) et disposer la pointe de tête de forage (1) dans le boîtier (2),
    un palier (4) étant introduit entre le boîtier (2) et la pointe de tête de forage (1) en tant qu'élément supplémentaire pour la pointe de tête de forage (1) pour le mouvement longitudinal, caractérisé en ce que le palier (4) est fixé dans un espace de réception (3) réalisé sous forme d'un renfoncement, conçu dans le boîtier (2) au moyen d'un ajustement correspondant et/ou d'une liaison collée entre le boîtier (2) et le palier (4), l'espace de réception (3) étant accessible côté tête de forage.
  10. Procédé de maintenance d'un dispositif de forage dans le sol selon l'une quelconque des revendications 1 à 8, le procédé comprenant l'étape consistant à : retirer le palier (4) du boîtier (2) en retirant le palier (4) de l'espace de réception (3).
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 DE102019000932B4 (de) 2019-02-11 2019-02-11 Vorrichtung zum Bohren in Erdreich und Verfahren zum Warten einer Vorrichtung zum Bohren in Erdreich

Publications (2)

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

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Family Applications (1)

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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) DE102019000932B4 (fr)
PL (1) PL3693532T3 (fr)

Citations (1)

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US11280134B2 (en) 2022-03-22
DE102019000932A1 (de) 2020-08-13
AU2020200965A1 (en) 2020-08-27
EP3693532A1 (fr) 2020-08-12
DE102019000932B4 (de) 2024-08-22
PL3693532T3 (pl) 2023-03-20
US20200256126A1 (en) 2020-08-13
AU2020200965B2 (en) 2022-01-27

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