EP1724399B1 - Dispositif hydraulique pour controller d'un dispositif d'enfoncer ou extraire - Google Patents

Dispositif hydraulique pour controller d'un dispositif d'enfoncer ou extraire Download PDF

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Publication number
EP1724399B1
EP1724399B1 EP06007634A EP06007634A EP1724399B1 EP 1724399 B1 EP1724399 B1 EP 1724399B1 EP 06007634 A EP06007634 A EP 06007634A EP 06007634 A EP06007634 A EP 06007634A EP 1724399 B1 EP1724399 B1 EP 1724399B1
Authority
EP
European Patent Office
Prior art keywords
hydraulic
control unit
vibrator
clamping device
unit according
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
EP06007634A
Other languages
German (de)
English (en)
Other versions
EP1724399A1 (fr
Inventor
Jochen Spohr
Werner Birkenstock
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.)
ThyssenKrupp GfT Tiefbautechnik GmbH
Original Assignee
ThyssenKrupp GfT Tiefbautechnik 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 ThyssenKrupp GfT Tiefbautechnik GmbH filed Critical ThyssenKrupp GfT Tiefbautechnik GmbH
Publication of EP1724399A1 publication Critical patent/EP1724399A1/fr
Application granted granted Critical
Publication of EP1724399B1 publication Critical patent/EP1724399B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D11/00—Methods or apparatus specially adapted for both placing and removing sheet pile bulkheads, piles, or mould-pipes

Definitions

  • the invention relates to a hydraulic control unit for a piling or pulling device with an imbalance adjustment and a clamping device having vibrator.
  • a control unit is in DE-A-196 31 992 described.
  • a second pair of hoses for the former function "Gripper turning" is used to adjust the imbalance, which ensures resonance-free start-up and leakage.
  • the 5th hydraulic hose is used for the removal of leak oil. At least the same number of hydraulic hoses and connections must also be routed from the hydraulic power pack to the vibrator.
  • Object of the present invention is thus to provide a hydraulic control unit on the vibrator, which reduces the number of hydraulic oil connections, simplifies the operation and requires only a standard function of an excavator or hydraulic unit.
  • a valve arrangement is provided, by means of which the clamping device is opened upon actuation of an operating lever from its zero position in the excavator cabin or on the hydraulic unit before the vibrator is switched on and the imbalance adjustment is set to a zero amplitude. This ensures that the vibrator starts vibration-free. Subsequently, by pressing the operating lever in the other direction beyond the zero position, the clamping device is closed and released after reaching the maximum closing pressure of the clamping device, the flow of hydraulic fluid to the hydraulic motor. At the same time a portion of the hydraulic fluid is passed through a throttle valve and adjusts time-delayed (after passing through the resonance frequency) the imbalance to maximum amplitude and thus maximum centrifugal force. The speed of the imbalance adjustment is determined by the existing flow area of the throttle. At the same time, a spring-loaded element is preloaded. This can be, for example, a hydraulic accumulator.
  • the aforementioned hydraulic control unit has three connection lines which are connected to three existing hydraulic connections of a hydraulic unit, an excavator or a leader.
  • the throttle valve has an adjustable flow cross-section.
  • the clamping device 10 the vibrator 11 with an imbalance adjustment 12 and the imbalance drive motor, the hydraulic motor 13 are shown in blocks.
  • only one vibrator control block 1 is provided, which already closes the chuck of the existing clamping device 10 before starting the hydraulic motor and releases the oil flow to the hydraulic motor only when the clamping pressure is reached.
  • the control block 2 shown in the drawing can now according to the invention without additional connecting lines to the excavator make the unbalance adjustment when switching on and off of the vibrator.
  • pressurized oil passes via the line 20, 21, the control block 1 and the line 22 to the clamping cylinder 14 and opens the clamping device.
  • pressure oil passes via the line 24 to the adjusting, which is pivoted in the direction of zero amplitude.
  • the piston rod side displaced oil of the clamping cylinder is supplied via the line 25, the control block 1, the lines 26 and 27 to the tank of the hydraulic excavator.
  • the displaced oil volume of the variable transmission is also supplied via the line 28, the pilot-operated check valve 15 and the drain line 29 and 30 to the tank of the excavator.
  • valve 8 If the valve 8 is pushed into its left switching position, pressure oil is supplied via the lines 20, 26, the control block 1 and the line 25 to the clamping cylinder 14, which clamps the pile. Upon reaching a certain clamping pressure, the control block 1 releases pressure oil via the line 31 to the hydraulic motor 13, so that it starts. With a time delay, the adjusting mechanism is swung out in the direction of maximum amplitude via the line 32, the throttle 17 and the line 28. At the same time a hydraulic accumulator 19 is filled with pressure oil via the check valve 18. The displaced oil volume in the adjusting is supplied via the line 33, the pilot-operated check valve 50, the line 24, 21 and 27 to the tank of the excavator.
  • the displaced oil volume of the clamping cylinder is also supplied via the line 22, 21 and 27 to the tank.
  • the displaced volume of the drive motor is supplied via the line 34, the control block 1, the line 21 and 27 to the tank.
  • the piston of the control valve 52 is acted upon by pressure oil on its surfaces 53 and 54. Since the surface 53 is larger than the annular surface 54, the valve remains in this position, so that no pressure oil can flow via the line 35 and 36 in the return line of the variable. If the valve 8 is brought into the middle position, the two lines 21 and 26 are depressurized. Due to the inertia of the drive shafts, not shown, and their imbalance masses of the engine 13 continues and pushes oil at low pressure via the line 34, the control block 1 and the line 31 in a circle.

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. Unité hydraulique de commande pour un dispositif de battage ou d'extraction avec un vibrateur (11) présentant un dispositif de réglage des masses non équilibrées et un dispositif de serrage (10),
    caractérisée par
    une disposition de soupape(s) par le biais de laquelle - lorsqu'un levier de manoeuvre est actionné de manière à être déplacé hors de sa position zéro, avant la mise en marche du vibrateur (11) - le dispositif de serrage (10) sera ouvert et le dispositif (12) de réglage des masses non équilibrées sera réglé à une amplitude zéro, ensuite - en actionnant le levier de manoeuvre dans l'autre direction - ledit dispositif de serrage (10) sera fermé et, après que la pression maximale de fermeture est atteinte, le milieu hydraulique peut s'écouler librement vers le moteur hydraulique (13), et, en même temps, une partie du milieu hydraulique est conduite via une soupape d'étranglement (17) au dispositif de réglage des masses non équilibrées, lesdites masses non équilibrées étant réglées ainsi à retard de temps à l'amplitude maximale, et, en même temps, un élément accumulateur à ressort est chargé, et - lorsque ledit levier de manoeuvre est re-pivoté dans la position zéro - ledit vibrateur (11) s'arrêtant peu à peu, l'énergie dudit élément accumulateur chargé à ressort étant conduite au dispositif de réglage des masses non équilibrées de sort que celles-ci, avant de passer la fréquence de résonance, sont réglées à leur position exempte de force centrifuge.
  2. Unité hydraulique de commande selon la revendication 1, caractérisée par le fait que ledit vibrateur du dispositif de battage et d'extraction est relié à trois conduites hydrauliques (21, 26, 30) d'un agrégat hydraulique, d'un excavateur ou d'une jumelle.
  3. Unité hydraulique de commande selon la revendication 1, caractérisée par le fait qu'un bloc de commande (1) pour actionner le dispositif de serrage (10) et le vibrateur (11) est relié à un bloc de commande (2) pour le dispositif (12) de réglage des masses non équilibrées.
  4. Unité hydraulique de commande selon la revendication 3, caractérisée par le fait que le bloc de commande (2) pour un dispositif (12) de réglage des masses non équilibrées présente une soupape d'étranglement (17) et une soupape de réglage (52).
  5. Unité hydraulique de commande selon l'une des revendications 1 à 4, caractérisée par le fait que ledit élément accumulateur à ressort est un accumulateur hydraulique de pression.
  6. Unité hydraulique de commande selon l'une des revendications 1 à 5, caractérisée par le fait que ladite soupape d'étranglement (17) présente une section réglable de passage.
  7. Unité hydraulique de commande selon la revendication 3, caractérisée par le fait que les fonctions du bloc de commande (1) et du bloc de commande (2) sont réunies dans un boîtier.
EP06007634A 2005-05-11 2006-04-12 Dispositif hydraulique pour controller d'un dispositif d'enfoncer ou extraire Active EP1724399B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005021687A DE102005021687A1 (de) 2005-05-11 2005-05-11 Hydraulische Steuereinheit für ein Ramm-oder Ziehgerät

Publications (2)

Publication Number Publication Date
EP1724399A1 EP1724399A1 (fr) 2006-11-22
EP1724399B1 true EP1724399B1 (fr) 2007-09-12

Family

ID=36499388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06007634A Active EP1724399B1 (fr) 2005-05-11 2006-04-12 Dispositif hydraulique pour controller d'un dispositif d'enfoncer ou extraire

Country Status (3)

Country Link
EP (1) EP1724399B1 (fr)
AT (1) ATE373143T1 (fr)
DE (2) DE102005021687A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013103675B4 (de) * 2013-04-11 2019-04-25 Thyssenkrupp Infrastructure Gmbh Hydraulisch angetriebene Arbeitsmaschine sowie Anordnung mit Arbeitsmaschine und Hydraulikaggregat
DE102013103715B4 (de) * 2013-04-12 2016-12-08 Thyssenkrupp Tiefbautechnik Gmbh Verfahren zum Betrieb einer Vibrationsrammanordnung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1432139A1 (ru) * 1986-05-16 1988-10-23 Всесоюзный научно-исследовательский институт транспортного строительства Устройство управлени свайным вибропогружателем
DE19631992B4 (de) * 1996-08-08 2007-01-18 Abi Maschinenfabrik Und Vertriebsgesellschaft Mbh Vibrationsbär mit Steuervorrichtung
US6386295B1 (en) * 2000-03-10 2002-05-14 Paul W. Suver Vibratory driver for pipe piling

Also Published As

Publication number Publication date
DE502006000096D1 (de) 2007-10-25
DE102005021687A1 (de) 2006-11-16
ATE373143T1 (de) 2007-09-15
EP1724399A1 (fr) 2006-11-22

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