EP3059349B1 - Gripzange mit querbacken für vibrator, und ein mit einer solchen zange ausgestatteter vibrator - Google Patents

Gripzange mit querbacken für vibrator, und ein mit einer solchen zange ausgestatteter vibrator Download PDF

Info

Publication number
EP3059349B1
EP3059349B1 EP16156140.2A EP16156140A EP3059349B1 EP 3059349 B1 EP3059349 B1 EP 3059349B1 EP 16156140 A EP16156140 A EP 16156140A EP 3059349 B1 EP3059349 B1 EP 3059349B1
Authority
EP
European Patent Office
Prior art keywords
clamp
vibrator
jaws
cylinder
tube
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.)
Not-in-force
Application number
EP16156140.2A
Other languages
English (en)
French (fr)
Other versions
EP3059349A1 (de
Inventor
Mathieu Jehanno
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.)
P T C
Original Assignee
P T C
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 P T C filed Critical P T C
Publication of EP3059349A1 publication Critical patent/EP3059349A1/de
Application granted granted Critical
Publication of EP3059349B1 publication Critical patent/EP3059349B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction

Definitions

  • the present invention relates, in general, to driving machines for driving and extracting shaped objects in the ground by vibration, including tubes or piles.
  • Vibrators are vibrating equipment, comprising one or more pairs of eccentric weights, known as flyweights, rotating at high speed and in opposite directions, so that the horizontal components of the vibrations cancel each other out so as to obtain resulting unidirectional vertical vibration.
  • the vibrators are generally provided with one or more clamps which clamp on the peripheral surface of the tube to be driven, transmitting all the forces by friction. Also, the sizing of the clamp and its clamping force must be sufficient to prevent slippage.
  • the current clamps are not well suited for gripping tubes that have an end flange.
  • the wind turbine masts are formed of tubes which are assembled by means of end collars.
  • the presence of this collar prevents the use of traditional clamps.
  • the clamps do not have an opening sufficient to properly maintain the collar.
  • the limited height of the collar would impose unacceptable constraints for the adaptation of a traditional clamp.
  • the current clamps have jaws with deep grooves to prevent slipping. These grooves penetrate slightly into the tube to ensure a good grip.
  • the paint made before installation must not be damaged to guarantee the life of the wind turbine and the damage can not be repaired satisfactorily at sea.
  • the object of the invention is therefore to overcome these disadvantages.
  • the invention thus proposes a vibrator clamp intended for driving flanged tubes into the ground, comprising a gripper body comprising at least two jaws for gripping the tube and one or more actuating jaws for the jaws.
  • the jaws are oriented to engage the flange and transverse to a general direction of driving force transmission through the gripper.
  • the orientation of the jaws makes it possible to obtain an open contact on a flat surface of the tube for a direct application of the forces to be transmitted to the flanged tube, this transmission of forces not depending on the frictional forces between the flanged tube and the flanges. jaws of the clamp.
  • At least one jaw is positioned in abutment under the flange of the tube, which makes it possible to secure the tube to prevent any fall of the tube even if the actuating cylinder of the jaws does not tighten.
  • the clamp comprises a profiled support on which the clamp body is movably mounted to laterally position the clamp relative to the collar, the clamp body being movable under the action of a positioning jack.
  • the clamp further comprises a jack for securing the clamp to the support.
  • the gripping cylinder and the securing cylinder are simultaneously acting cylinders.
  • the support has a T-shaped profile.
  • the clamp comprises a fixed jaw and a movable jaw under the action of a gripping cylinder.
  • the subject of the invention is also a vibrator intended for driving flanged tubes into the ground, comprising a vibrating casing internally comprising a set of pairs of eccentric flyweights driven in rotation under the action of motor means. , this vibrator comprising at least one clamp as defined above.
  • Figures 1 to 3 show an exemplary embodiment of a clamp for vibrator, according to the invention, designated by the general reference numeral 1.
  • Such a clamp is intended to constitute an element of a clamping system intended to grip a flanged tube to be driven directly on the flange itself.
  • the clamp comprises a clamp body 2 and a support 3 profiled, here in T.
  • the support 3 is provided with a set of fastening means 4, screw type, to ensure the attachment of the assembly on the vibrating housing. a vibrator so that the vibrations emitted during operation of the vibrator are transmitted to the clamp body 2.
  • the longitudinal direction of the clamp body 2 which extends from the connection to the support 3 to the opposite end of the body, along the vertical axis Y, corresponds to the resulting direction of vibration and the transverse direction of the clamp body 2, which extends along the axis X, corresponds to a direction perpendicular to the axis of the vibrations transmitted.
  • the clip shown on the Figures 1 to 3 is shown in a vertical position of use, the end of the clamp body located on the side of the support 3 being the high side, the opposite end being the bottom side.
  • the clamp body 2 has a lateral opening 5 configured to receive the collar of a push-in tube. It comprises two jaws 6 and 7 of which one, namely the lower jaw, is fixed and the other is movable.
  • clamp body 2 is movably mounted on the profiled support 3 under the action of a hydraulic positioning cylinder 8.
  • This jack 8 is activated to move the clamp laterally and position the jaws 6 and 7 on either side of the collar of the tube.
  • the movable jaw 7 is fixed on the rod of a hydraulic cylinder 9. This jaw 7 is thus movable between an open position, visible on the figure 2 , chosen in such a way that there is sufficient clearance for setting the clamp on the tube and the collar and a working position, visible on the figure 3 .
  • a second hydraulic jack 10 makes it possible to press the clamp against the support 3 by exerting sufficient force to secure the clamp and the support by eliminating any play in order to effectively transmit the vibrations applied by the vibrator to the support 3.
  • hydraulic cylinders 9 and 10 are simultaneous action and comprise a common working chamber so as to ensure the clamping of the clamp and its attachment against the support simultaneously.
  • a second stop plate 12 fixed to the clamp body ensures the maintenance of the jack 10 for securing.
  • the jaws used to grip the flange can be flat, that is to say without deep groove to prevent damage to the flange.
  • Such clamps can thus advantageously be used for handling the tubes with the vibrator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Claims (7)

  1. Zange für einen zum Rammen von Rohren (T) mit Flansch (C) in den Boden bestimmten Vibrator, welche einen Zangenkörper (2) umfasst, der wenigstens zwei Spannbacken (6, 7) zum Ergreifen des Rohres und einen oder mehrere Zylinder zur Betätigung der Spannbacken umfasst, dadurch gekennzeichnet, dass die Spannbacken in der Arbeitsposition so ausgerichtet sind, dass sie mit dem Flansch in Eingriff kommen, und zwar quer in Bezug auf eine allgemeine Richtung der Übertragung von Rammkräften über die Zange.
  2. Zange nach Anspruch 1, welche einen Halter (3) in Form eines Profilteils aufweist, an welchem der Zangenkörper (2) beweglich angebracht ist, um die Zange in Bezug auf den Flansch seitlich zu positionieren, und wobei der Zangenkörper unter der Wirkung eines Positionierzylinders (8) verschiebbar ist.
  3. Zange nach Anspruch 2, welche außerdem einen Zylinder (10) zur festen Verbindung der Zange mit dem Halter aufweist.
  4. Zange nach Anspruch 3, wobei der Greifzylinder und der Zylinder zur festen Verbindung gleichzeitig wirkende Zylinder sind.
  5. Zange nach einem der Ansprüche 2 bis 4, wobei der Halter eine T-Profilform aufweist.
  6. Zange nach einem der Ansprüche 1 bis 5, welche eine feste Spannbacke (6) und eine unter der Wirkung eines Greifzylinders (9) bewegliche Spannbacke (7) umfasst.
  7. Vibrator, welcher zum Rammen von Rohren mit Flansch in den Boden bestimmt ist und ein vibrierendes Gehäuse umfasst, das innen eine Anordnung von Paaren von exzentrischen Gewichten umfasst, die unter der Wirkung von Motormitteln in Rotation versetzt werden, dadurch gekennzeichnet, dass er wenigstens eine Zange nach einem der Ansprüche 1 bis 6 aufweist.
EP16156140.2A 2015-02-18 2016-02-17 Gripzange mit querbacken für vibrator, und ein mit einer solchen zange ausgestatteter vibrator Not-in-force EP3059349B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1551356A FR3032729B1 (fr) 2015-02-18 2015-02-18 Pince pour vibrateur a mors transversaux et vibrateur dote d'une telle pince

Publications (2)

Publication Number Publication Date
EP3059349A1 EP3059349A1 (de) 2016-08-24
EP3059349B1 true EP3059349B1 (de) 2018-03-21

Family

ID=52808051

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16156140.2A Not-in-force EP3059349B1 (de) 2015-02-18 2016-02-17 Gripzange mit querbacken für vibrator, und ein mit einer solchen zange ausgestatteter vibrator

Country Status (2)

Country Link
EP (1) EP3059349B1 (de)
FR (1) FR3032729B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4214366A2 (de) * 2020-09-17 2023-07-26 Cape Holland Holding B.V. Klemmvorrichtung für eine vibrationsvorrichtung zum einsetzen eines gründungselementes, vibrationsvorrichtung damit und verfahren dafür

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2982888B1 (fr) * 2011-11-22 2013-11-29 P T C Pince pivotante pour vibrateur et vibrateur dote d'une telle pince

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3059349A1 (de) 2016-08-24
FR3032729B1 (fr) 2017-02-10
FR3032729A1 (fr) 2016-08-19

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