EP1165907B1 - Vibrateur interne dote d'un systeme de mesure - Google Patents

Vibrateur interne dote d'un systeme de mesure Download PDF

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Publication number
EP1165907B1
EP1165907B1 EP00910811A EP00910811A EP1165907B1 EP 1165907 B1 EP1165907 B1 EP 1165907B1 EP 00910811 A EP00910811 A EP 00910811A EP 00910811 A EP00910811 A EP 00910811A EP 1165907 B1 EP1165907 B1 EP 1165907B1
Authority
EP
European Patent Office
Prior art keywords
vibrating
measuring device
unit
internal
circuit
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.)
Expired - Lifetime
Application number
EP00910811A
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German (de)
English (en)
Other versions
EP1165907A1 (fr
Inventor
Günter KUNZE
Georg Sick
Stefan Graul
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.)
Wacker Construction Equipment AG
Original Assignee
Wacker Construction Equipment AG
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 Wacker Construction Equipment AG filed Critical Wacker Construction Equipment AG
Publication of EP1165907A1 publication Critical patent/EP1165907A1/fr
Application granted granted Critical
Publication of EP1165907B1 publication Critical patent/EP1165907B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
    • E04G21/08—Internal vibrators, e.g. needle vibrators
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/093—Producing shaped prefabricated articles from the material by vibrating or jolting by means directly acting on the material, e.g. by cores wholly or partly immersed in the material or elements acting on the upper surface of the material
    • B28B1/0935—Producing shaped prefabricated articles from the material by vibrating or jolting by means directly acting on the material, e.g. by cores wholly or partly immersed in the material or elements acting on the upper surface of the material using only elements wholly or partly immersed in the material, e.g. cores

Definitions

  • the invention relates to a mecanical a tationary a tationary a tationary a tationary a tationary a tationary a tationary a tationary a
  • vibrators such as B. hose or Stabrüttlem. compacted.
  • Such vibrators are internal vibrators, in which one inside the Fresh concrete immersed vibrator bottle an imbalance over an electric motor is driven, causing vibrations that affect the concrete compacted.
  • the building material concrete varied and stringent quality controls
  • the professional compacting of the concrete is significant depending on the individual skills of the operator of the internal vibrator. He alone determines if an optimal and even compaction result is obtained. But because the individual capabilities of different operators naturally can be very different, can also the compression quality significantly, which in some cases is insufficient Compaction result and thus insufficient concrete strength leads.
  • Decisive variables are the m r value the imbalance (mass - radius), the acceleration of the imbalance and the vibrating cylinder receiving the drive motor, the frequency recorded electrical power, the path amplitude and the energy of the individual Shock.
  • DE-OS-39 01 893 is a réellerüttelvortechnisch with a vibrating unit and a circuit unit separated by a flexible connection, in which a measuring device for detecting the rotational speed of a Vibration generating device driving electric motor provided is.
  • the measuring device is part of a speed control device, with the rotational speed of the electric motor can be controlled in such a way. that it follows a preset value.
  • DE-A-2 162 201 an internal vibrator is described in which an imbalance mass driving electric motor equipped with a motor protection switch is. by a arranged on the motor windings temperature sensor is triggerable.
  • the invention has for its object to provide a mecanical a tationary a tationary a tationary a tationary a tationary a tationary a tationary a tationary a tationary a tationary a tationary a tationary a tationary a tationary a tationary a tationary a tationary a tationary a tationary a tationary a g., a schittelvorrauma which gives the operator information. which allows him to be independent from his individual skills the quality of his condensing work assess.
  • the inner vibrator according to the invention according to claim 1 has a Measuring device for detecting at least one operating parameter of Internal jar device, wherein the operating parameter is a parameter from the Group movement of the vibrating unit. Vibration amplitude of the vibrating unit, Oscillation frequency of the vibrating unit. Speed of the electric motor, electric Excitation frequency of the electric motor and winding temperature of a Stators of the electric motor is Furthermore, an evaluation circuit is provided. by the due to the readings and thus due to a change of the operating parameter, a signal can be generated that corresponds to a change in the compression state of the material.
  • the measured values supplied by the measuring device are evaluated by the evaluation circuit evaluated, with evaluation algorithms available for this purpose stand, so that due to a change in the operating parameter. Conclusions on a change in the compression state of the compacted Materials can be pulled.
  • the compaction effect depends on numerous sizes but only a few of them are measurable.
  • the acceleration of the Usually realized in the form of a vibrating bottle vibrating unit in Fresh concrete belong to the electric motor received by the drive motor Power and its speed as well as non-variable quantities such as the m ⁇ r value and the vibrator bottle mass.
  • the defined operating parameters overlap partially. For example, from the vibration amplitute and the vibration frequency of the vibrating unit on the movement, in particular the acceleration of the Rüttelmaschine be closed.
  • the power consumption the electric motor is essentially - assuming a constant Voltage - determined by the flowing current.
  • the measuring device is advantageously fed by the evaluation circuit.
  • a particularly advantageous embodiment of the invention is characterized characterized in that the measuring device at least one in the Rüttelmaschine having provided movement measuring device.
  • the Motion measuring device preferably an accelerometer
  • the movement of the vibrating unit can be detected directly. from which conclusions can be drawn on the compaction effect.
  • the acceleration of the vibrating unit is measured. can about integrations also determines the speed and the movement path of the vibrating bottle become.
  • the evaluation circuit is in the of the Wuttelussi provided separate circuit unit, feeds the motion measuring device and evaluates their signals. Since the circuit unit with the Wuttelussi is connected only elastically, damaging influences on the Electronics of the evaluation by the generated in the vibrating unit Vibration avoided.
  • the circuit unit is together with a power switch and a frequency converter combined in a switch housing.
  • a power switch and a frequency converter combined in a switch housing.
  • the Frequency converter is used.
  • the mains frequency in one for the drive motor in the vibrator bottle required to convert higher frequency.
  • two accelerometers are provided in the vibrating unit. their measuring directions to each other and to a longitudinal axis of the vibrating unit stand vertically. can the course of vibrations in all directions detected perpendicular to the longitudinal axis.
  • the measuring device additionally a power measuring device coupled to the evaluation circuit for determining the of the vibration generating device, d. H. from Drive motor, recorded electrical power.
  • the power measurement can for example by measuring the recorded by the electric motor Electricity. It also gives conclusions about the compaction result to.
  • the accelerometer in the vibrating unit can the measured values of the cupboardmesseinrichung and the accelerometer together of appropriate algorithms are processed. This additionally clarifies the measurement result.
  • the evaluation circuit can via an optical and / or acoustic Display a signal to be given to the operator when his compaction work achieved a result in an optimal range. Conversely, at Failure to achieve the required compaction will be given a warning signal. Upon detection of measurement results outside a specified range The internal vibrating device can also automatically into a safe Stand-by state or otherwise disabled.
  • FIG. 1 shows a so-called hose vibrator called internal vibrator.
  • handstock vibrators or Stabrüttler are known which are usually equipped with a handle for operation and a considerable have shorter length.
  • the hose vibrator has a vibrating bottle held by a protective hose 1 2 on.
  • a protective hose 1 2 At the other end of the sometimes a length of several meters having protective tube 1 is a serving as a circuit unit Switch housing 3 is provided, from which in turn a network cable 4 goes off.
  • the internal vibrator is operated by the operator on the operating and protective hose 1 held.
  • a handle provided in which the switch housing 3 integrated can be.
  • Frequency converter arranged, which supplied via the power cord 4 electrical mains frequency converts to a higher frequency value, which is for the Operation of the electric motor is required.
  • the usual values are 200 Hertz.
  • the vibrating bottle 2 Serving as movement measuring devices acceleration sensor 6 so arranged that their measuring directions 7 perpendicular to a longitudinal axis. 8 the vibrating bottle 2 stand.
  • the two measuring directions 7 are also available perpendicular to each other, so that by the accelerometer. 6 Vibrations in a plane perpendicular to the longitudinal axis 8 are detected can.
  • the accelerometers 6 are miniaturized Components, as z. B. from vehicle technology in airbag controls or vehicle stabilization systems are known. This builds the Accelerometer 6 very small, so that the vibrating bottle 2 through the Recording the accelerometer 6 not fundamentally redesigned must become.
  • an evaluation circuit not shown, is housed. which is in communication with the accelerometers 6 and thus not only feeding them with electrical energy, but also those of recorded and evaluated signals emitted by the accelerometers.
  • Evaluation algorithms are stored in the evaluation circuit, with the help of which evaluated the delivered by the accelerometers 6 measurement results can be.
  • a memory may also be provided for this purpose be in which certain maps or algorithms are stored.
  • the evaluation algorithms and maps, the expert can determine by preliminary tests, in which, depending on the compression result, the corresponding Sizes are related.
  • the evaluation circuit can be advantageously in the form of a neural Network or a fuzzy logic to the measurement signals in real time continue to process and allow a certain ability to learn for the device.
  • the evaluation also with classic Be constructed control and regulating blocks.
  • the evaluation can also directly in be accommodated in the vibrating bottle 2 or elsewhere, however the switch housing 3 has the advantage of being largely vibration-free, which benefits the electronic components.
  • the Switch housing 3 accommodated power measuring device are provided, that of the vibration generating device, d. H. the electric motor. recorded electrical power, which is also an influence criterion on the compaction effect of the vibrator.
  • the performance measuring device is connected to the evaluation circuit, wherein the measurement signals be processed by suitable algorithms.
  • the evaluation circuit determines that the measured quantities in one lie on a particular area or take a certain course, what is on it indicates that the compaction result is optimal at this time they provide via a display 9 an optical signal to the operator.
  • the display 9 can be realized for example by a red and a green light, wherein in the case of insufficient compaction effect, the red light and after reaching the desired compaction success the green Light is lit.
  • Another display option is to control a light bar whose length or brightness each varies according to the compaction result.
  • numerous other possibilities are conceivable with which the result of the evaluation of the measured variables communicated or reused can be.
  • the internal vibrator usually is exposed to harsh site conditions, so that a certain Robustness in any case is desirable.
  • a speed measuring device for determining the rotational speed of the electric motor provided, which drives an imbalance in the vibrating bottle.
  • the change The speed values are processed by the evaluation circuit and called Criterion used for a compaction effect or a compression result. In this way, the current compression state or at least the maximum achievable relative concrete density signaled to the operator become.
  • the invention provides a sensitive internal vibrator, with which it is possible. Repercussions on the vibrator bottle, resulting from a change in the structure of the fresh concrete and thus due to the compaction activity arise to determine. This makes it possible to be independent of the operator from his professional knowledge and experience to provide information on Give a hand to the success of his work in compacting concrete Has. This can be an inadequate concrete quality due to inferior Compaction activity, e.g. B. by an untrained operator, largely avoid.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Claims (11)

  1. Vibreur interne pour le compactage d'un matériau coulant, comportant
    une unité vibrante (2) dans laquelle est disposé un dispositif de génération d'oscillations avec un moteur électrique ;
    une unité de circuits (3) séparée de l'unité vibrante (2) par une liaison élastique (1) ;
    un dispositif de mesure (6) pour détecter au moins un paramètre de fonctionnement du vibreur interne ; et comportant
    un circuit d'exploitation pour exploiter des valeurs de mesure détectées par le dispositif de mesure ;
    caractérisé en ce que
    le paramètre de fonctionnement est un paramètre du groupe :
    déplacement de l'unité vibrante (2), amplitude d'oscillations de l'unité vibrante, fréquence d'oscillations de l'unité vibrante, vitesse de rotation du moteur électrique, fréquence d'excitation électrique du moteur électrique et température de l'enroulement d'un stator du moteur électrique ; et en ce que
    sur la base des valeurs de mesure et donc sur la base d'une variation du paramètre de fonctionnement, le circuit d'exploitation peut produire un signal qui correspond à une variation d'un état de compactage du matériau.
  2. Vibreur interne selon la revendication 1, caractérisé en ce que le circuit d'exploitation est conçu pour l'alimentation du dispositif de mesure (6) en énergie électrique.
  3. Vibreur interne selon la revendication 1 ou 2, caractérisé en ce que le dispositif de mesure comporte au moins un dispositif de mesure de déplacement (6) prévu dans l'unité vibrante (2).
  4. Vibreur interne selon les revendications 2 et 3, caractérisé en ce que le circuit d'exploitation est prévu dans l'unité de circuit (3), pour l'alimentation du dispositif de mesure de déplacement (6) et exploitation des signaux fournis par le dispositif de mesure de déplacement (6).
  5. Vibreur interne selon la revendication 3 ou 4, caractérisé en ce que le dispositif de mesure de déplacement est un capteur d'accélération (6).
  6. Vibreur interne selon l'une des revendications 1 à 4, caractérisé en ce que le dispositif de mesure comporte deux capteurs d'accélération (6) prévus dans l'unité vibrante (2), dont les dispositifs de mesure (7) sont perpendiculaires l'un à l'autre et perpendiculaires à un axe longitudinal (8) de l'unité vibrante (2).
  7. Vibreur interne selon l'une des revendications précédentes, caractérisé en ce que le dispositif de mesure comporte au moins un dispositif de mesure de puissance.
  8. Vibreur interne selon la revendication 7, caractérisé en ce que le dispositif de mesure de puissance est couplé au circuit d'exploitation, afin de déterminer la puissance électrique absorbée par le dispositif de génération d'oscillations.
  9. Vibreur interne selon l'une des revendications 1 à 8, caractérisé en ce que le circuit d'exploitation comprend un réseau neuronal ou une logique fuzzy.
  10. Vibreur interne selon l'une des revendications 1 à 9, caractérisé en ce que sur l'unité de circuits (3) est prévu un affichage optique et/ou acoustique (9) qui peut être commandé par le circuit d'exploitation.
  11. Vibreur interne selon l'une des revendications précédentes, caractérisé en ce que l'unité de circuit comprend un boítier de commutateur (3) dans lequel est prévu un interrupteur secteur (5) et/ou un transformateur de fréquence.
EP00910811A 1999-03-23 2000-03-10 Vibrateur interne dote d'un systeme de mesure Expired - Lifetime EP1165907B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19913077 1999-03-23
DE19913077A DE19913077C2 (de) 1999-03-23 1999-03-23 Innenrüttler mit Meßsystem
PCT/EP2000/002138 WO2000057000A1 (fr) 1999-03-23 2000-03-10 Vibrateur interne dote d'un systeme de mesure

Publications (2)

Publication Number Publication Date
EP1165907A1 EP1165907A1 (fr) 2002-01-02
EP1165907B1 true EP1165907B1 (fr) 2005-05-18

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Family Applications (1)

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EP00910811A Expired - Lifetime EP1165907B1 (fr) 1999-03-23 2000-03-10 Vibrateur interne dote d'un systeme de mesure

Country Status (5)

Country Link
US (1) US20080012165A1 (fr)
EP (1) EP1165907B1 (fr)
JP (1) JP2002540323A (fr)
DE (2) DE19913077C2 (fr)
WO (1) WO2000057000A1 (fr)

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DE102022118543A1 (de) 2022-07-25 2024-01-25 Wacker Neuson Produktion GmbH & Co. KG Betonverdichtungssystem mit Rückmeldung über Verdichtungszustand
DE102022118542A1 (de) 2022-07-25 2024-01-25 Wacker Neuson Produktion GmbH & Co. KG Betonverdichtungsvorrichtung mit Messung des Verdichtungsfortschritts
DE102022118541A1 (de) 2022-07-25 2024-01-25 Wacker Neuson Produktion GmbH & Co. KG Verdichtungssystem mit Bestimmung des Verdichtungsfortschritts

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Publication number Priority date Publication date Assignee Title
DE102022118543A1 (de) 2022-07-25 2024-01-25 Wacker Neuson Produktion GmbH & Co. KG Betonverdichtungssystem mit Rückmeldung über Verdichtungszustand
DE102022118542A1 (de) 2022-07-25 2024-01-25 Wacker Neuson Produktion GmbH & Co. KG Betonverdichtungsvorrichtung mit Messung des Verdichtungsfortschritts
DE102022118541A1 (de) 2022-07-25 2024-01-25 Wacker Neuson Produktion GmbH & Co. KG Verdichtungssystem mit Bestimmung des Verdichtungsfortschritts
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EP4311640A1 (fr) * 2022-07-25 2024-01-31 Wacker Neuson Produktion GmbH & Co. KG Dispositif de compactage de béton avec mesure de la progression de compactage

Also Published As

Publication number Publication date
DE50010353D1 (de) 2005-06-23
EP1165907A1 (fr) 2002-01-02
DE19913077A1 (de) 2000-10-19
DE19913077C2 (de) 2003-06-12
US20080012165A1 (en) 2008-01-17
WO2000057000B1 (fr) 2000-12-21
JP2002540323A (ja) 2002-11-26
WO2000057000A1 (fr) 2000-09-28

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