EP4357532B1 - Procédé d'insertion d'une tige filetée dans un support, et système de vissage correspondant - Google Patents

Procédé d'insertion d'une tige filetée dans un support, et système de vissage correspondant

Info

Publication number
EP4357532B1
EP4357532B1 EP22203095.9A EP22203095A EP4357532B1 EP 4357532 B1 EP4357532 B1 EP 4357532B1 EP 22203095 A EP22203095 A EP 22203095A EP 4357532 B1 EP4357532 B1 EP 4357532B1
Authority
EP
European Patent Office
Prior art keywords
threaded rod
drive
screw
drive sleeve
sleeve
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
EP22203095.9A
Other languages
German (de)
English (en)
Other versions
EP4357532C0 (fr
EP4357532A1 (fr
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 PL22203095.9T priority Critical patent/PL4357532T3/pl
Priority to EP22203095.9A priority patent/EP4357532B1/fr
Priority to US18/382,021 priority patent/US12546220B2/en
Priority to CA3217319A priority patent/CA3217319A1/fr
Publication of EP4357532A1 publication Critical patent/EP4357532A1/fr
Application granted granted Critical
Publication of EP4357532C0 publication Critical patent/EP4357532C0/fr
Publication of EP4357532B1 publication Critical patent/EP4357532B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • E21D20/00—Setting anchoring-bolts
    • E21D20/003—Machines for drilling anchor holes and setting anchor bolts
    • 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 according to claim 6 for inserting a threaded rod into a substrate and a method according to claim 1 for inserting such a threaded rod.
  • the EP 2 689 071 B2 shows a screwing system for inserting a threaded rod axially into a substrate, comprising a drive unit that rotates a drive sleeve.
  • the threaded rod can be inserted into the drive sleeve, which positively drives the threaded rod.
  • a component with an internal thread is arranged between the drive unit and the substrate, which converts the rotational movement of the drive sleeve into a translational movement of the threaded rod.
  • the document CN109441443A represents the closest prior art and discloses a very similar method as in claim 1, which is used for screwing in a threaded rod.
  • the insertion device in CN109441443A It is designed in such a way that the rotary motor is attached to the end of the threaded rod and then the motor is pushed out of its carriage towards the installation location along the entire length of the threaded rod.
  • This great length of the built-in device in CN109441443A The invention according to claim 1, as well as the associated device according to claim 6, attempts to remedy this.Other screwing systems according to the prior art are also described in WO2020/047562A1 , EP1959091 A1 and WO2021/102485A1 revealed.
  • Such screwing systems in which a threaded rod is rotated through a positive connection inside a tool, have the problem that the threaded rod moving through the tool places stress on the mechanism of the screwing system. This is due to the high internal friction inside the tool and the associated heat generation. This can lead to failures of the screwing system or a slowing down of the screwing process if care is taken to ensure the drive sleeve is not subjected to excessive stress.
  • the present invention is therefore based on the object of enabling a safe and cost-effective screwing of threaded rods into a substrate without pre-drilling, whereby a simple, low-wear mechanism is to be used that reduces assembly time.
  • the screwing machine is mounted on a carriage that can be moved relative to a component with a thread.
  • the carriage's feed rate is determined by the revolutions per minute x the 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 fixed threaded sleeve.
  • This linear support and guide element is a rack or, preferably, a rail.
  • the drive sleeve engages the threaded rod with a profile on its inner circumference, positively engaging it around its axis of rotation. This internal profile ensures a positive engagement with the outer surface of the threaded rod, particularly the key flats, with the profile of the drive sleeve being matched to the key flat of the threaded rod.
  • a specially adapted drive sleeve is used, which can be interchangeably connected to the drive machine.
  • the profiling on the inner circumference of the drive sleeve is provided with two parallel or angled surfaces that accommodate the threaded rod with a corresponding "spanner width.” 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, for example, three or more surfaces can also be driven.
  • a threaded rod is driven in rotation and experiences a feed movement through a front 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 be a hollow, arbitrarily shaped body which is formed with an internal thread which is in threaded engagement with the external thread of the threaded rod.
  • the threaded sleeve is preferably held within the screw-in system by a clamping device mounted on the carriage at the ground-side 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, it is fixed to an existing structure by one or more clamping jaws, or it is manually held in position with an open-end wrench.
  • the threaded rod By rotating the thread of a fixed threaded sleeve, the threaded rod is forced into an axial movement 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 motor runs in the feed direction, allowing axial movement of the threaded rod without causing any significant friction.
  • the drive sleeve's profile which corresponds to the drive profile of the threaded rod, allows for reduced wear. According to the invention, this results in less frictional resistance than, for example, in known devices that exhibit high surface friction.
  • the device according to the invention can thus reduce wear and set-up time.
  • the drive motor is mounted on a carriage and moves with the advance of the threaded rod.
  • This advance 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 inner profile can be used.
  • rods with a diameter of 15 mm can be rotated with one drive sleeve, while to drive rods with a diameter of 26 mm, a different drive sleeve is mounted via 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 yield strength.
  • the preferred drive unit is a hydraulic rotary drive, which, thanks to its compact cylindrical design, can be mounted on the carriage in a space-saving manner for rotary movements. This is particularly well-suited for applications involving large radial loads. This allows for trouble-free insertion of the threaded rod into the ground, as the acting forces can be absorbed by the drive's bearings.
  • the drive motor which runs along the rails, thus generates a rotation of the threaded rod, which is converted into a translation by the threaded sleeve. Because the drive motor runs with the drive sleeve during the threaded rod's feed movement, 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 internal thread of a component, wherein the rotary movement of the threaded rod is converted into a translational movement by the internal thread of the component, wherein the drive machine is mounted on a translationally movable carriage which is moved along the threaded rod axis in accordance with the feed movement of the threaded rod, and in that the drive sleeve interrupts the positive connection with the threaded rod when the carriage moves counter to the screwing-in direction in order to create a positive connection again in a different area of the threaded rod and to drive the threaded rod in rotation again.
  • the carriage is mounted on a guide (e.g. rail, rack, etc.) and can be moved relative to the 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 counter to the insertion direction 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 gun carriage can be mounted on the boom arm of a mobile vehicle, such as a tracked vehicle, quad bike, 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 running centrally in the axial direction through the threaded rod.
  • the threaded rod has a thread 4 at certain sections on its outer circumference, which, despite interruptions in the axial direction, has a continuous helix. Outside of these sections, the threaded rod has flats that form the drive profile of the threaded rod and are referred to below as wrench flats 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 arrow 25.
  • the inner profile 34 of the drive sleeve 13 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 motor 5 is mounted on a carriage 8, which can move forward in the direction of arrow 25 and backward in the opposite 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 onto 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 received 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 another perspective view of the screwing system 1 without the 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 rear into the insertion opening 38 of the drive motor 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 located on the guide plate 9, i.e., at the insertion-side end of the rails 11.
  • the threaded rod 2 is guided through 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 motor 5, so that this rotation is transferred to the threaded rod 2.
  • the threaded rod 2 is fed in the direction of arrow 25 by the thread engagement in the thread of the threaded sleeve 19, whereby the drive motor 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 subsurface 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 controller 26 controls, among other things, the feed drive 27 of the carriage 8.
  • the feed drive 27 drives a roller 28, which rolls along the underside 29 of the rail 11.
  • a gear is provided which engages with a rack on the underside. The frictional connection thus created moves the carriage 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 at defined areas.
  • idler rollers 30 are located on the side of the rails 11, which laterally support the linear movement of the carriage 11.
  • Figure 5 shows the clamping device 15, which, via a clamping drive 17, actuates the two clamping jaws 16 in and against the opening direction 39.
  • 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 ground-side end of the clamping device 15 is the guide plate 20, which also forms the ground-side end of the carriage 6.
  • FIG. 6 shows a tracked vehicle 31, which in the example shown here is an excavator, with a hydraulically raised and lowered boom arm 32, on which the carriage 6 is mounted and which can be freely moved and aligned in the desired insertion direction of the threaded rod 2 by means of the boom arm.
  • the threaded rod 2 can be inserted into the subsoil 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 wrench surfaces 3.
  • Figure 8 shows a retracted drive unit 5, which is located at the insertion end in the area of the rear guide plate 9.
  • the clamping device and threaded sleeve have been omitted from the illustration.
  • the carriage 8 is provided with sliding elements 35 that laterally engage around the rail 11.
  • the rotating drive sleeve 13 moves toward the guide plate 20, which is located at the insertion end, thereby driving the threaded rod 2.
  • the control unit 26 is arranged to the side of the 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 reverse 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
  • the thread which enables the translational movement of the threaded rod 2 into the substrate 22, is located in the example shown here as a threaded bore 37 in an anchor plate 36, which rests on the substrate 22.
  • the driven threaded rod 2 rotating by the drive motor 5 or drive sleeve 13, can be introduced into the substrate 22.

Landscapes

  • 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)
  • Earth Drilling (AREA)

Claims (15)

  1. Procédé de vissage d'une tige filetée (2) dans le sol ou la roche, avec une machine d'entraînement (5) qui présente une douille d'entraînement (13), laquelle, par l'intermédiaire d'un profilage intérieur (34), génère une action par coopération de forme sur la tige filetée (2) pour entraîner la tige filetée (2) en rotation et la visser à travers le filetage intérieur d'un composant (19), dans lequel le mouvement rotatif de la tige filetée (2) à travers le filetage intérieur du composant (19) est converti en un mouvement de translation, dans lequel la machine d'entraînement (5) est logée sur un chariot mobile en translation qui est déplacé en fonction du mouvement d'avance de la tige filetée (2) le long de l'axe de tige filetée (23), et que la douille d'entraînement (13) interrompt la liaison par coopération de forme avec la tige filetée (2) lors d'un mouvement du chariot (8) à l'encontre du sens de rotation pour générer à nouveau une liaison par coopération de forme sur une autre zone de la tige filetée (2) et entraîner à nouveau en rotation la tige filetée (2).
  2. Procédé selon la revendication 1, caractérisé en ce que la tige filetée (2) est vissée à travers le filetage intérieur d'un manchon fileté (19).
  3. Procédé selon la revendication 2, caractérisé en ce que la tige filetée (2) est introduite par l'arrière dans une ouverture d'introduction (38) de la machine d'entraînement (5), et est poussée à travers la douille d'entraînement (13) jusqu'à ce qu'elle dépasse de la douille d'entraînement (13) et repose sur le filetage du manchon fileté (19) à l'extrémité côté fond du chariot (11), puis à travers la douille d'entraînement (13) entraînée en rotation et subit une avance du fait de l'insertion filetée dans le manchon fileté (19).
  4. Procédé selon l'une des revendications 2 ou 3, caractérisé en ce que le chariot (8) est logé sur un élément porteur et de guidage (11) linéaire et est mobile par rapport au manchon fileté (19) fixé en position.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que pour dévisser la tige filetée (2) d'un support (22), la machine d'entraînement (5) est déplacée sur le chariot (8) mobile en translation en fonction du mouvement de recul de la tige filetée (2) le long de l'axe de tige filetée (23) et la douille d'entraînement (13) est pivotée dans le sens opposé au sens de vissage.
  6. Système de vissage (1), qui est réalisé pour mettre en œuvre le procédé selon l'une des revendications 1 à 5, dans lequel le système de vissage (1) présente une machine d'entraînement (5) comprenant une douille d'entraînement (13), dans lequel la douille d'entraînement (13) peut générer par l'intermédiaire d'un profilage intérieur (34) une action par coopération de forme sur la tige filetée (2) pour entraîner en rotation la tige filetée (2) et la visser à travers le filetage intérieur d'un composant (19), dans lequel le filetage intérieur d'un composant (19) est fixé en position par un dispositif de serrage (15) qui est monté à l'extrémité côté support du chariot (8) sur la glissière (6).
  7. Système de vissage (1) selon la revendication 6, caractérisé en ce que le système de vissage (1) présente une glissière (6) comprenant au moins un rail (11) sur lequel le chariot (8) est mobile en translation.
  8. Système de vissage (1) selon l'une des revendications 1 à 7, caractérisé en ce que la douille d'entraînement (13) présente un profilage intérieur (34) qui assure une action par coopération de forme sur la surface d'enveloppe de la tige filetée (1).
  9. Système de vissage (1) selon la revendication 8, caractérisé en ce que l'action par coopération de forme existe entre le profilage (34) et les pans latéraux (3) de la tige filetée (2), qui sont formés par des aplatissements latéraux et sans filetage de la tige filetée (2).
  10. Système de vissage (1) selon la revendication 9, caractérisé en ce que le profilage (34) présente sur le pourtour intérieur de la douille d'entraînement deux surfaces parallèles ou opposées selon un angle.
  11. Système de vissage (1) selon l'une des revendications 6 à 10, caractérisé en ce que le mouvement relatif du chariot (8) le long de l'axe de tige filetée (23) correspond à l'avance de la tige filetée (2).
  12. Système de vissage (1) selon l'une des revendications 6 à 11, caractérisé en ce que la douille d'entraînement (13) est reliée à la machine d'entraînement (5) par transmission de couple par l'intermédiaire d'une liaison à bride (12).
  13. Système de vissage (1) selon la revendication 12, caractérisé en ce que la douille d'entraînement (13) est interchangeable et est choisie en fonction du diamètre attendu de la tige filetée (2).
  14. Système de vissage (1) selon l'une des revendications 6 à 13, caractérisé en ce qu'un entraînement d'avance (27) entraîne en rotation un rouleau (28) ou une roue dentée qui roule sur la face inférieure (29) du rail (11) pour déplacer le chariot (8).
  15. Système de vissage (1) selon l'une des revendications 6 à 4, caractérisé en ce que la glissière (6) est montée sur l'avant-bras (32) d'un véhicule mobile.
EP22203095.9A 2022-10-21 2022-10-21 Procédé d'insertion d'une tige filetée dans un support, et système de vissage correspondant Active EP4357532B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL22203095.9T PL4357532T3 (pl) 2022-10-21 2022-10-21 Sposób wprowadzania pręta gwintowanego do podłoża, jak również układ do jego wkręcania
EP22203095.9A EP4357532B1 (fr) 2022-10-21 2022-10-21 Procédé d'insertion d'une tige filetée dans un support, et système de vissage correspondant
US18/382,021 US12546220B2 (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 EP4357532B1 (fr) 2022-10-21 2022-10-21 Procédé d'insertion d'une tige filetée dans un support, et système de vissage correspondant

Publications (3)

Publication Number Publication Date
EP4357532A1 EP4357532A1 (fr) 2024-04-24
EP4357532C0 EP4357532C0 (fr) 2025-10-15
EP4357532B1 true EP4357532B1 (fr) 2025-10-15

Family

ID=83995182

Family Applications (1)

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EP22203095.9A Active EP4357532B1 (fr) 2022-10-21 2022-10-21 Procédé d'insertion d'une tige filetée dans un support, et système de vissage correspondant

Country Status (4)

Country Link
US (1) US12546220B2 (fr)
EP (1) EP4357532B1 (fr)
CA (1) CA3217319A1 (fr)
PL (1) PL4357532T3 (fr)

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Also Published As

Publication number Publication date
PL4357532T3 (pl) 2026-04-27
EP4357532C0 (fr) 2025-10-15
EP4357532A1 (fr) 2024-04-24
CA3217319A1 (fr) 2024-04-21
US12546220B2 (en) 2026-02-10
US20240133296A1 (en) 2024-04-25
US20240229646A9 (en) 2024-07-11

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