EP4357532A1 - Système de vissage pour introduire une tige filetée dans un sol - Google Patents

Système de vissage pour introduire une tige filetée dans un sol Download PDF

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Publication number
EP4357532A1
EP4357532A1 EP22203095.9A EP22203095A EP4357532A1 EP 4357532 A1 EP4357532 A1 EP 4357532A1 EP 22203095 A EP22203095 A EP 22203095A EP 4357532 A1 EP4357532 A1 EP 4357532A1
Authority
EP
European Patent Office
Prior art keywords
threaded rod
drive
carriage
sleeve
threaded
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.)
Pending
Application number
EP22203095.9A
Other languages
German (de)
English (en)
Inventor
Peter Okonek
Luca Guerra
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.)
SPINNANKER GmbH
Original Assignee
SPINNANKER 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 SPINNANKER GmbH filed Critical SPINNANKER GmbH
Priority to EP22203095.9A priority Critical patent/EP4357532A1/fr
Priority to US18/382,021 priority patent/US20240229646A9/en
Priority to CA3217319A priority patent/CA3217319A1/fr
Publication of EP4357532A1 publication Critical patent/EP4357532A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/003—Machines for drilling anchor holes and setting anchor bolts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E02D5/808—Ground anchors anchored by using exclusively a bonding material
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0066—Anchoring-bolts formed by a bundle of radially arranged rigid elements

Definitions

  • the subject matter of the invention is a screwing system for inserting a threaded rod into a substrate and a method for inserting such a threaded rod according to the preamble of patent claims 1 and 13.
  • the EP 2 689 071 B2 shows a screwing system for inserting a threaded rod in the axial direction into a substrate with a drive machine that drives a drive sleeve in rotation, whereby the threaded rod can be inserted into the drive sleeve, which drives the threaded rod in rotation in a form-fitting manner.
  • a component with an internal thread is arranged between the drive machine and the substrate, which converts the rotary movement of the drive sleeve into a translatory movement of the threaded rod.
  • the present invention is therefore based on the object of enabling threaded rods to be screwed into a substrate safely and cost-effectively without pre-drilling, using a simple, low-wear mechanism that reduces assembly time.
  • An advantageous feature is that the screwing machine is mounted on a carriage that can be moved relative to a component with a thread.
  • the thrust speed of the carriage is calculated from revolutions per minute x thread pitch in cm.
  • the screwing system has a carriage with at least one rail on which the carriage can be moved back and forth in a translational manner in order to minimize the internal friction in the drive sleeve that rotates the threaded rod during the screwing process.
  • the carriage is mounted on a linear support and guide element and can move relative to the position-fixed threaded sleeve.
  • This linear support and guide element is a rack or preferably a rail.
  • the drive sleeve has a profile on its inner circumference that engages the threaded rod in a form-fitting manner in order to rotate it around its axis of rotation.
  • This internal profile ensures a form-fitting engagement with the outer surface of the threaded rod, particularly the key surfaces, whereby the profile of the drive sleeve is matched to the key surface of the threaded rod.
  • an adapted drive sleeve is used, which can be connected to the drive machine in an interchangeable manner.
  • the profiling on the inner circumference of the drive sleeve is provided with two parallel or opposite surfaces at an angle, which accommodate the threaded rod with a corresponding "wrench size". These surfaces, in a figurative sense, have a key dimension between them, which at least partially corresponds to the profile shape of the threaded rod and thus fulfill a key function.
  • the profiled inner diameter of the drive sleeve is, so to speak, the negative form of the rod.
  • the present invention is not limited to the use of a pair of surfaces, since three or more surfaces can also be driven.
  • a threaded rod is driven in rotation and experiences a feed movement through a preceding thread of a threaded sleeve or alternatively a nut when the thread of the rod engages in the thread of the sleeve, etc.
  • a threaded sleeve is understood to mean a hollow, arbitrarily shaped body that is designed with an internal thread that is in threaded engagement with the external thread of the threaded rod.
  • the threaded sleeve is preferably held within the screwing system by a clamping device that is mounted on the carriage at the bottom end of the carriage.
  • the threaded sleeve is preferably held in position within the clamping device by two or more movable clamping jaws or alternatively fixed to an existing structure by means of one or more clamping jaws or held in position manually with an open-end wrench.
  • the threaded rod By rotatingly engaging the thread of a fixed threaded sleeve, the threaded rod is forced to move axially and moves through the threaded sleeve.
  • the threaded rod can be inserted via an insertion opening arranged on the mounting head into the drive sleeve which is driven in rotation in the mounting head and which drives the threaded rod in rotation in the longitudinal direction.
  • the rotary drive of the drive sleeve is disengaged during the retraction process. This means that there is little or no resistance from the drive sleeve to the threaded rod.
  • the threaded rod By placing the threaded rod on an element with a threaded hole, for example a threaded sleeve, the thread-like profile of the threaded rod engages with the thread of the threaded hole of the element, whereby the internal thread of the threaded hole has the same pitch as the threaded rod.
  • a threaded hole for example a threaded sleeve
  • the drive machine runs in the feed direction, allowing axial movement of the threaded rod without causing any significant friction.
  • a profile of the drive sleeve that corresponds to the drive profile of the threaded rod enables less wear. According to the invention, this creates less frictional resistance than, for example, in the known devices that have high surface friction.
  • the device according to the invention can thus reduce wear and set-up time.
  • the drive machine is mounted on a carriage and runs with the feed movement of the threaded rod.
  • This feed movement can be seen as analogous to the rod length, i.e. an adjustment is usually made between 1/3 and 1/4 of the rod length, for example 1 to 3 meters.
  • the drive sleeve is replaceably connected to the drive machine by means of a flange connection.
  • a drive sleeve with a corresponding internal profile can be used.
  • rods with a diameter of 15 mm can be turned with one drive sleeve, and to drive rods with a diameter of 26 mm, another drive sleeve is mounted over the flange connection.
  • the sleeve is made of hardened steel and is therefore harder than the threaded rod; tungsten carbide cobalt is preferred.
  • only the inner sleeve is made of tungsten carbide-cobalt and the outer sleeve is made of a cheaper material with a higher elongation limit.
  • the drive machine is preferably a hydraulic rotary drive, which, due to its compact cylindrical design, can be mounted on the carriage in a space-saving manner for rotary movements, and which is particularly suitable for applications with large radial loads. This means that the threaded rod can be easily inserted into the ground, as the forces acting can be absorbed by the bearing of the drive.
  • the drive machine running along the rails thus generates a rotation of the threaded rod, which is converted into a translation by the threaded sleeve. Because the drive machine runs along with the drive sleeve during the feed movement of the threaded rod, there is no loss due to friction between the drive sleeve and the threaded rod.
  • a method for screwing a threaded rod into soil or rock with a drive machine which has a drive sleeve which creates a positive engagement with the threaded rod via an internal profiling in order to drive the threaded rod in rotation and to screw it through the thread of a threaded sleeve, wherein the rotary movement of the threaded rod is converted by the threaded sleeve into a translational movement in order to drive the threaded rod at its front end into the soil or rock, characterized in that the drive machine is mounted on a translationally movable carriage and is moved along the threaded rod axis in accordance with the feed movement of the threaded rod.
  • the carriage is mounted on a guide (e.g. rail, rack, etc.) and can be moved relative to the position-fixed threaded sleeve.
  • a guide e.g. rail, rack, etc.
  • the drive sleeve interrupts the positive connection with the threaded rod when the carriage moves against the direction of insertion in order to create a positive connection again in another area of the threaded rod and to drive the threaded rod to rotate again.
  • the carriage is moved relative to the threaded sleeve along one or more rails using a linear drive, whereby rails mean a form-fitting longitudinal guide.
  • the carriage can be mounted on the boom arm of a mobile vehicle.
  • a mobile vehicle is a tracked vehicle, a quad or similar.
  • Figure 1 shows a threaded rod 2 that can be rotated in the direction of rotation 24 about a threaded rod axis 23 that runs centrally in the axial direction through the threaded rod.
  • the threaded rod has a thread 4 on certain sections on its outer circumference, which has a continuous helical line despite interruptions in the axial direction. Outside of these sections, the threaded rod has flats that form the drive profile of the threaded rod and are referred to below as key surfaces 3.
  • Figure 2 shows the screwing system 1 with which the threaded rod 2 can be inserted into a substrate 22.
  • the threaded rod 2 is driven in rotation by a drive sleeve 13, with a threaded sleeve 19 converting this rotation into a translation in the direction of the arrow 25.
  • the inner profile 34 of the drive sleeve 19 forms a clamping chuck for the threaded rod 2.
  • the drive sleeve 13 is detachably and replaceably connected to the rotary coupling 14 via a flange connection 12, which transmits a rotary movement generated by the drive machine 5 to the drive sleeve 13.
  • the drive machine 5 is mounted on a carriage 8, which can move forwards in the direction of arrow 25 and backwards against the direction of arrow 25.
  • the carriage is mounted on two rails 11, which are part of the carriage 6.
  • a feed drive 27 moves the carriage forward on the carriage 6, while the threaded rod 2 is rotated in the direction of rotation 24 about its threaded rod axis 23.
  • the threaded rod 2 is clamped into the profile 34, which has the function of a clamping chuck, of the drive sleeve 13 and then the threaded rod is placed with its front end 33 on the thread of the threaded sleeve 19 and then the drive machine 5 is switched on.
  • the threaded rod 2 can be inserted via an insertion opening 38 arranged on the rear side of the drive machine 5 into the drive sleeve 13 which is rotatably driven on the front side of the drive machine 5 and which in turn drives the threaded rod 2 in a rotating manner in the longitudinal direction.
  • the threaded sleeve 19 is accommodated in the clamping opening 18, which is formed between two clamping jaws 16. These clamping jaws 16 are part of the clamping device 15.
  • the carriage 6 has at its bottom end, after the clamping device 15, a guide plate 20 with a crescent-shaped recess 21 at the top end through which the threaded rod 2 runs.
  • the carriage 6 also has a similar guide plate 9 at its insertion end, which has a hole 10 through which the threaded rod 2 is inserted.
  • FIG. 3 shows a further perspective view of the screwing system 1 without a threaded rod.
  • a rod is guided in the direction of arrow 25 through the hole 10 of the guide plate 9 and inserted at the back into the insertion opening 38 of the drive machine 5 until contact is made with the drive sleeve 13.
  • the rod can be pushed through the drive sleeve until it protrudes from the drive sleeve 13.
  • the carriage 8 is preferably located on the guide plate 9, i.e. at the insertion end of the rails 11.
  • the threaded rod 2 is guided until it rests on the thread of the threaded sleeve 19 at the base end of the carriage 11.
  • the drive sleeve 13 is then rotated by the drive machine 5 so that this rotation is transferred to the threaded rod 2.
  • the threaded rod 2 is thereby advanced in the direction of arrow 25 by the thread engagement in the thread of the threaded sleeve 19, whereby the drive machine 5 also runs on the carriage at the same speed in the direction of arrow 25.
  • the movement of the carriage is controlled by the control 26, which sends the corresponding control commands to the Figure 4 shown feed drive 27.
  • the drive sleeve 13 engages during the entire feed path of the slide 8 between the insertion end and the base end of the Rails 11 only in a constant section of the threaded rod 2 and drives it in rotation.
  • FIG 4 shows a partially sectioned view of the screwing system 1.
  • the control 26 controls, among other things, the feed drive 27 of the slide 8.
  • the feed drive 27 drives a roller 28 in rotation, which rolls on the underside 29 of the rail 11.
  • a gear is provided which engages with a rack on the underside. The frictional connection thus created thus moves the slide 8 connected to the feed drive 27 along the longitudinal extent of the rail 11.
  • the drive sleeve 13 can thus be moved to any position along the rail 11 and engage the threaded rod 2 in defined areas.
  • idler rollers 30 are located on the sides of the rails 11, which laterally support the linear movement of the carriage 11.
  • Figure 5 shows the clamping device 15, which operates the two clamping jaws 16 in and against the opening direction 39 via a clamping drive 17.
  • the two clamping jaws 16 form a clamping opening 18 between them, into which a threaded sleeve 19 (not shown here) can be received and fixed in position.
  • the guide plate 20 At the base end of the clamping device 15 is the guide plate 20, which also forms the base end of the carriage 6.
  • Figure 6 shows a tracked vehicle 31, which in the example shown here is an excavator, with a boom arm 32 that can be raised and lowered hydraulically, on which the carriage 6 is mounted and can be moved freely by means of the boom arm and aligned in the desired direction of insertion of the threaded rod 2.
  • the threaded rod 2 can thus be inserted into the ground 22 in the direction of arrow 25 by the screwing system 1 according to the invention.
  • Figure 7 shows a sectional view of the screwing system 1.
  • the threaded rod 2 is guided along the threaded rod axis 23 within the drive machine 5.
  • the drive machine 5 drives the drive sleeve 13 via the rotary coupling 14 and a flange connection 12.
  • This drive sleeve 13 has an internal profiling 34, which enables a positive engagement with the threaded rod 2, in particular its key surfaces 3.
  • Figure 8 shows a retracted drive machine 5, which is located at the insertion end in the area of the rear guide plate 9.
  • the clamping device and threaded sleeve are not shown.
  • the carriage 8 has sliding bodies 35 which grip the rail 11 from the side.
  • the rotating drive sleeve 13 moves in the direction of the guide plate 20, which is located at the insertion end, and thereby drives the threaded rod 2 to rotate.
  • the control unit 26 is arranged to the side of the gun carriage 5 and part of the extension arm 32 can be seen.
  • the drive machine 5 is moved on the translationally movable carriage 8 in accordance with the retrograde movement of the threaded rod 2 along the threaded rod axis 23 and the drive sleeve 13 is rotated in the direction opposite to the screwing-in direction.
  • the present invention is not limited to the use of a threaded sleeve as in Figure 9 is shown.
  • the thread which enables the translational movement of the threaded rod 2 in the substrate 22, is located in the example shown here as a threaded hole 37 in an anchor plate 36, which rests on the substrate 22.
  • the driven threaded rod 2 which rotates through the drive machine 5 or drive sleeve 13, can be introduced into the substrate 22.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Devices (AREA)
EP22203095.9A 2022-10-21 2022-10-21 Système de vissage pour introduire une tige filetée dans un sol Pending EP4357532A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP22203095.9A EP4357532A1 (fr) 2022-10-21 2022-10-21 Système de vissage pour introduire une tige filetée dans un sol
US18/382,021 US20240229646A9 (en) 2022-10-21 2023-10-19 Screwing-in system for inserting a threaded rod into soil
CA3217319A CA3217319A1 (fr) 2022-10-21 2023-10-20 Systeme de vissage pour inserer une tige filetee dans un substrat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22203095.9A EP4357532A1 (fr) 2022-10-21 2022-10-21 Système de vissage pour introduire une tige filetée dans un sol

Publications (1)

Publication Number Publication Date
EP4357532A1 true EP4357532A1 (fr) 2024-04-24

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ID=83995182

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22203095.9A Pending EP4357532A1 (fr) 2022-10-21 2022-10-21 Système de vissage pour introduire une tige filetée dans un sol

Country Status (2)

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EP (1) EP4357532A1 (fr)
CA (1) CA3217319A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1959091A1 (fr) * 2005-11-14 2008-08-20 Kabushiki Kaisha Miyanaga Dispositif de decoupe de rainure d'expansion de diametre et outil de mecanisme d'expansion/contraction
CN109441443A (zh) * 2018-12-25 2019-03-08 河南省耿力工程设备有限公司 一种液压锚杆台车
WO2020047562A1 (fr) * 2018-08-28 2020-03-05 Epiroc Holdings South Africa (Pty) Ltd Dispositif intégré à rotateur de boulon et à buse de coulis, destiné à être utilisé dans une application de boulonnage mécanisé
EP2689071B2 (fr) 2011-03-23 2020-03-25 Spinnanker GmbH Système d'ancrage d'un sol
WO2021102485A1 (fr) * 2019-11-22 2021-05-27 Innovative Mining Products (Pty) Ltd Ensemble boulon d'ancrage bien rempli de résine doté d'une douille d'étanchéité adaptée

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1959091A1 (fr) * 2005-11-14 2008-08-20 Kabushiki Kaisha Miyanaga Dispositif de decoupe de rainure d'expansion de diametre et outil de mecanisme d'expansion/contraction
EP2689071B2 (fr) 2011-03-23 2020-03-25 Spinnanker GmbH Système d'ancrage d'un sol
WO2020047562A1 (fr) * 2018-08-28 2020-03-05 Epiroc Holdings South Africa (Pty) Ltd Dispositif intégré à rotateur de boulon et à buse de coulis, destiné à être utilisé dans une application de boulonnage mécanisé
CN109441443A (zh) * 2018-12-25 2019-03-08 河南省耿力工程设备有限公司 一种液压锚杆台车
WO2021102485A1 (fr) * 2019-11-22 2021-05-27 Innovative Mining Products (Pty) Ltd Ensemble boulon d'ancrage bien rempli de résine doté d'une douille d'étanchéité adaptée

Also Published As

Publication number Publication date
US20240133296A1 (en) 2024-04-25
CA3217319A1 (fr) 2024-04-21

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