EP2067533B1 - Vibrateur pour un appareil de fonçage vibratoire - Google Patents

Vibrateur pour un appareil de fonçage vibratoire Download PDF

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Publication number
EP2067533B1
EP2067533B1 EP08000543.2A EP08000543A EP2067533B1 EP 2067533 B1 EP2067533 B1 EP 2067533B1 EP 08000543 A EP08000543 A EP 08000543A EP 2067533 B1 EP2067533 B1 EP 2067533B1
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EP
European Patent Office
Prior art keywords
vibrator
sensors
unbalanced masses
housing
module
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
EP08000543.2A
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German (de)
English (en)
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EP2067533A1 (fr
EP2067533B2 (fr
Inventor
Christian Heichel
Albrecht Kleibl
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.)
ABI Anlagentechnik Baumaschinen Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH
Original Assignee
ABI Anlagentechnik Baumaschinen Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH
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Application filed by ABI Anlagentechnik Baumaschinen Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH filed Critical ABI Anlagentechnik Baumaschinen Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH
Priority to EP08000543.2A priority Critical patent/EP2067533B2/fr
Publication of EP2067533A1 publication Critical patent/EP2067533A1/fr
Publication of EP2067533B1 publication Critical patent/EP2067533B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
    • B06B1/166—Where the phase-angle of masses mounted on counter-rotating shafts can be varied, e.g. variation of the vibration phase
    • 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
    • E02D7/18—Placing by vibrating

Definitions

  • the invention relates to a vibration generator according to the preamble of claim 1.
  • the invention further relates to a vibratory pile driver according to claim 7.
  • vibrators are used to bring objects such as profiles into the ground or to pull them out of the ground or to compact soil material.
  • the soil is stimulated by vibration and thus reaches a "pseudo-liquid" state.
  • the vibration is characterized by a linear movement and is generated by pairwise counter-rotating imbalances within a Vibratorgetriebes.
  • Vibration generators are characterized by the rotating unbalance and the maximum speed. Such a vibration generator is eg in EP 0 926 300 A1 disclosed.
  • the vibration generators are linear vibration exciters whose centrifugal force is generated by rotating imbalances. These vibration exciters move at a variable speed.
  • the size of the imbalance is also called "static moment".
  • the course of the velocity of the linear vibration exciter corresponds to a periodically recurring function, for example a sine function, but it can also take other forms. For a sinusoidal course of the velocity, the following applies: If the unbalance center of gravity is in the direction of movement or perpendicular thereto, the angular acceleration of the imbalances and all the associated rotating parts is 0. Maximum values of the angular acceleration occur when the imbalances relative to the direction of movement are approximately 45, 135, 225 or 315 degrees are deflected.
  • the invention aims to remedy this situation.
  • the invention is based on the object to provide a vibration exciter, which allows a reduction in the indexed by changing vibration speeds loads of machine elements in operation. According to the invention, this object is solved by the features of the characterizing part of patent claim 1. According to the invention, this object is further achieved by the features of the characterizing part of patent claim 2.
  • a vibration exciter is created, which reduces the indicated by changing vibration velocities of loads Machine elements in operation allows.
  • at least one sensor for detecting the angular acceleration of the rotating imbalance masses By providing at least one sensor for detecting the angular acceleration of the rotating imbalance masses, a change in the angular acceleration can be determined directly, whereby a subsequent control of the operating state of the vibrator is made possible.
  • sensors for detecting the relative position of the imbalance masses to each other and for detecting the acceleration of the vibrator may be provided. With the aid of the measured values ascertained with the aid of the known variables of mass inertia and mass moment of inertia of the vibration generator, a corresponding determination of the respective adjacent angular acceleration of the rotating imbalance masses is made possible.
  • the sensors preferably include inductive sensors, acceleration sensors and / or rotary encoders. Such sensors have proven to be durable and robust.
  • the sensors are connected to an evaluation unit, which compares the measured values recorded by the sensors with stored maximum values. This allows the detection of load peaks.
  • the evaluation unit preferably determines the currently applied static torque on the basis of the measured values determined by the sensors.
  • the evaluation unit is connected to an audible and / or visual warning device.
  • a device for controlling the vibration generator is arranged, which is connected to the evaluation unit.
  • an automatic control of the vibration generator is possible in dependence on the detected measured values of the vibration generator.
  • the means for changing the relative rotational position of the rotatable imbalance masses to each other via the control device controllable This allows a direct control of the static torque of the vibrator.
  • the evaluation unit advantageously has a programmable logic controller (PLC). This allows flexible control of the vibration generator.
  • PLC programmable logic controller
  • the invention is further based on the object to provide a Vibratoryramm réelle that allows a reduction in the indicated by changing vibration velocities of the vibrator loads of machine elements in operation. According to the invention, this object is solved by the features of patent claim 7.
  • a vibratory pile driver is provided, which allows a reduction in the indicated by changing vibration velocities of the vibrator loads of machine elements in operation.
  • the vibration ramming device chosen as an exemplary embodiment consists essentially of a carrier device 1, on which a vibrator (vibrator) 3 is arranged so as to be vertically displaceable via a broker 2.
  • the vibration generator 3 comprises a housing 31, which is surrounded by a hood 30. On the hood 30, a clamping tongs 37 for receiving pile material 4 is arranged.
  • the Hood 30 serves to guide the vibration generator 3 and transmits the static force of the leader 2 to the vibration generator 3.
  • the vibration generator 3 generates via rotating unbalances 3311, 3321, 3331, 3511, 3521, 3531 a vibration, which on the clamping forceps 33 on the Rammgut 4 is transmitted.
  • the vibrator 3 is designed as a vibrator gearbox ( FIG. 2 ). It consists essentially of a housing 31 in which gears 331, 332, 333, 351, 352, 353 provided with shafts 33, 35 are rotatably mounted.
  • the gears 331, 332, 333, 351, 352, 353 are each provided with unbalanced masses 3311, 3321, 3331, 3511, 3521, 3531, wherein the gears of both shafts 3, 5 via gears 3613, 3614 of the rotor shaft 361 of a pivot motor 36 with each other are engaged.
  • the gears 331, 3321, 3331, 3511, 3521, 3531 provided with unbalanced masses 331, 332, 333, 351, 352, 353 are adjustable relative to each other via the pivot motor 36 in its rotational position, whereby the resulting imbalance or the resulting static moment is adjustable.
  • Such Vibratorgetriebe with rotatably mounted imbalance masses that are adjustable in relative phase position the skilled person for example from the DE 20 2007 005 283 U1 known.
  • the vibrator 3 is opposite to the gears 331, 332, 333, 351, 352, 353 provided on the inside of the housing 31 each with two parallel to the circumference of the gears spaced from each other arranged inductive sensors 310.
  • the inductive sensors 310 enable the detection of the angular acceleration of the rotating imbalance masses 3311, 3321, 3331, 3511, 3521, 3531.
  • the time offset of the imbalance masses 3311, 3321, 3331, 3511, 3521, 3531 can furthermore be used to determine their relative position to one another.
  • an acceleration sensor 311 is arranged on the housing 31 of the vibration generator 3.
  • a programmable logic controller (PLC) 7 is arranged, which further based on frequency and time offset of the imbalance masses to each other the static moment applied calculated.
  • PLC programmable logic controller
  • a controller 8 is arranged, which is connected via lines 6 to the PLC 7.
  • the controller 8 is set up in such a way that it calculates an admissible angular acceleration of the rotating parts of the vibration generator 3 from the static torque determined by the SPS 7 and the known moment of inertia of the rotating parts and the acceleration data determined by the sensor 311.
  • the installation of an optical and / or acoustic signal in the operator of the carrier device is possible to inform the operator of the permissible acceleration values exceeded.
  • the adjustment of the resulting unbalance / the resulting static torque can in this case via the operator by appropriate control of the swing motor within the vibrator 3 done.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (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)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Claims (7)

  1. Vibrateur à mettre en oeuvre dans un appareil de fonçage vibratoire, comprenant une transmission de vibrations agencée dans un carter, comprenant des masselottes en rotation agencées sur au moins deux arbres, sachant qu'à l'intérieur du carter sont agencés des moyens permettant de modifier les positions de rotation relatives des masselottes, caractérisé en ce qu'à l'intérieur du carter est agencé au moins un capteur (310) servant à saisir l'accélération angulaire des masselottes en rotation (3311, 3321, 3331, 3511, 3521, 3531), sachant qu'au moins un capteur (310) est relié à un module (7) qui compare les valeurs de mesure saisies par au moins un capteur (310) avec les valeurs de mesure en mémoire, et qui est relié à un équipement agencé pour réguler le vibrateur, équipement via lequel les moyens (36) servant à modifier les positions de rotation relatives des masselottes (3311, 3321, 3331, 3511, 3521, 3531) sont excitables les uns par rapport aux autres.
  2. Vibrateur à mettre en oeuvre dans un appareil de fonçage vibratoire, comprenant une transmission de vibrations agencée dans un carter, comprenant des masselottes en rotation agencées sur au moins deux arbres, sachant qu'à l'intérieur du carter sont agencés des moyens permettant de modifier les positions de rotation relatives des masselottes, caractérisé en ce qu'à l'intérieur du carter sont agencés des capteurs (310, 311) servant à saisir la position des masselottes (3311, 3321, 3331, 3511, 3521, 3531) les unes par rapport aux autres, et que des capteurs sont prévus pour saisir l'accélération du vibrateur, et en ce qu'est prévu un module (7) servant à déterminer l'accélération angulaire des masselottes en rotation (3311, 3321, 3331, 3511, 3521, 3531) sur la base des valeurs de mesure saisies par les capteurs (310, 311), sachant que ces capteurs (310, 311) sont reliés au module (7) qui compare les valeurs de mesure saisies par les capteurs (310, 311) avec des valeurs maximales en mémoire et qui est relié à un équipement agencé servant à réguler le vibrateur, équipement qui permet d'exciter les moyens (36) servant à modifier les positions de rotation relatives des masselottes rotatives (3311, 3321, 3331, 3511, 3521, 3531).
  3. Vibrateur selon la revendication 1 ou 2, caractérisé en ce que les capteurs (310, 311) comprennent des capteurs et/ou encodeurs rotatifs inductifs.
  4. Vibrateur selon l'une des revendications 1 à 3, caractérisé en ce que le module (7) détermine le moment statique ponctuel sur la base des valeurs de mesure saisies par les capteurs (310, 311).
  5. Vibrateur selon l'une des revendications 1 à 4, caractérisé en ce que le module (7) est relié à un équipement avertisseur sonore et / ou visuel.
  6. Vibrateur selon l'une des revendications 1 à 5, caractérisé en ce que le module (7) présente un automate programmable industriel (API).
  7. Appareil de fonçage vibratoire destiné à enfoncer des éléments de fonçage dans le sol ou à les en extraire, ainsi qu'à compacter du matériau constitutif du sol, comprenant un vibrateur (3) selon l'une des revendications 1 à 6.
EP08000543.2A 2007-12-06 2008-01-12 Vibrateur pour un appareil de fonçage vibratoire Active EP2067533B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08000543.2A EP2067533B2 (fr) 2007-12-06 2008-01-12 Vibrateur pour un appareil de fonçage vibratoire

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07025254 2007-12-06
EP08000543.2A EP2067533B2 (fr) 2007-12-06 2008-01-12 Vibrateur pour un appareil de fonçage vibratoire

Publications (3)

Publication Number Publication Date
EP2067533A1 EP2067533A1 (fr) 2009-06-10
EP2067533B1 true EP2067533B1 (fr) 2013-09-25
EP2067533B2 EP2067533B2 (fr) 2016-12-07

Family

ID=39415437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08000543.2A Active EP2067533B2 (fr) 2007-12-06 2008-01-12 Vibrateur pour un appareil de fonçage vibratoire

Country Status (2)

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US (1) US20090146514A1 (fr)
EP (1) EP2067533B2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2266713B1 (fr) * 2009-06-26 2011-11-02 ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH Générateur d'oscillations
DE102010010037B4 (de) * 2010-03-03 2019-10-31 Bomag Gmbh Stufenlos verstellbarer Schwingungserreger
AU2015391736A1 (en) * 2015-04-17 2017-11-02 Junttan Oy A method for pile-driving
DE102017001877A1 (de) * 2017-02-27 2018-08-30 Liebherr-Werk Nenzing Gmbh Verfahren zum Erkennen von Hindernissen beim Betrieb einer Vibrationsramme
CN113677443A (zh) * 2019-04-12 2021-11-19 株式会社佐竹 筛分装置的运转监视系统

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US3744322A (en) * 1970-12-07 1973-07-10 Space Res Corp Angular velocity sensors
DE2442367A1 (de) * 1974-09-04 1976-03-18 Tracto Technik Hydraulisch angetriebener vibrator
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Publication number Publication date
EP2067533A1 (fr) 2009-06-10
EP2067533B2 (fr) 2016-12-07
US20090146514A1 (en) 2009-06-11

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