EP1064131B1 - Concrete compacting device with vibration sensor and control unit - Google Patents
Concrete compacting device with vibration sensor and control unit Download PDFInfo
- Publication number
- EP1064131B1 EP1064131B1 EP99915614A EP99915614A EP1064131B1 EP 1064131 B1 EP1064131 B1 EP 1064131B1 EP 99915614 A EP99915614 A EP 99915614A EP 99915614 A EP99915614 A EP 99915614A EP 1064131 B1 EP1064131 B1 EP 1064131B1
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- Prior art keywords
- vibration
- formwork
- arrangement
- concrete
- producing device
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- 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
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
- B28B1/0873—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould the mould being placed on vibrating or jolting supports, e.g. moulding tables
-
- 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
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
- B28B17/0081—Process control
Definitions
- the invention relates to a concrete compacting arrangement according to the preamble of claim 1.
- Such an arrangement is used to compress still plastically deformable Concrete that is poured into a formwork to produce concrete parts has been.
- Vibration units attached, which often each have an external vibrator.
- Such an external vibrator usually consists of a motor that drives one or more unbalances consisting of flyweights and thereby generating an oscillation which is transmitted to the Formwork is transferred. By shaking the formwork, the concrete can be compressed in the desired manner.
- DE 195 42 868 A1 discloses a concrete compacting arrangement with two attached to a formwork and each have a vibration generator having vibrating units known.
- the vibration of the formwork is attached to the vibrating units Acceleration sensors are detected and sent to a common signal processing unit forwarded.
- a Data processing logic connected from the measured values and from stored Comparative values a forecast of the expected product quality of the molded concrete parts.
- the invention has for its object a concrete compacting arrangement specify where only those areas of the formwork are more excitable, which have not yet vibrated with the desired strength, whereby one flexible and easy adaptation of the concrete compaction arrangement to different Formwork geometries and a different number of external vibrators is to be aimed for.
- each one own vibration generator, own acceleration sensor, have their own frequency converter and control. This allows the vibration strength at the individual points of the Formwork very precisely and individually by controlling the individual vibrating units respectively.
- the controls of the respective with an advantageous further development Vibrating units coupled together via a data line.
- the data line can also be connected to a common host computer which is used for individual control of the vibrating units.
- the solution according to the invention makes it possible to use the acceleration sensor to detect the vibration acting on the formwork.
- One of the Vibration corresponding, permanently changing acceleration value is delivered to the controller, which corresponds to the operating parameters of the vibration generator can vary. around on the formwork to generate the desired vibration. For example, it is possible that the controller increases the frequency of the vibration generator, if the accelerometer vibration of the formwork is too low has detected.
- the acceleration sensor on the vibration generating device or on the Formwork attached. This makes it possible for the acceleration sensor either the vibration directly on the formwork or - due to a rigid Attachment of the vibration generator to the formwork the vibration generator experiencing the same vibration as the formwork can tap.
- target values for the individual controls provided on the vibrating units are the frequency of the vibration generating device, a target acceleration or a permissible control range within which the individual control depending on the measured vibration signal Can control vibration generating device.
- a concrete compaction arrangement according to the invention has several vibrating units 1, each of which is also shown only schematically and arranged to hold liquid concrete formwork 2 are.
- the vibrating units 1 each consist of a vibration generator serving external vibrators rigidly attached to the formwork 2 3 and a frequency converter 4, an acceleration sensor 5 and a controller 6. To simplify the illustration, in the figure only the structure of one of the vibrating units 1 is shown.
- the known external vibrator 3 consists essentially of a Electric motor and one or two flyweights driven by the motor, the rotation required to create the unbalance required Cause vibrations. To make the vibrations as lossless as possible To transfer to the formwork 2, the external vibrator 3 with the formwork 2 be rigidly connected. As already described, the external vibrator 3 is a such known, so that on a further description and an illustration is omitted in the figure.
- the electric motor is the External vibrator 3 upstream of a frequency converter 4, which in known Way is connected to the mains.
- the frequency converter 4 converts the mains frequency into a voltage frequency suitable for the external vibrator 3 around. While it is known, all external vibrators connected to the formwork 2 3 to feed by a frequency converter 4 is according to the invention a separate frequency converter 4 is provided for each external vibrator 3.
- the frequency converter 4 is arranged directly on the external vibrator 3. Depending on the embodiment, however, it may also be appropriate. the frequency converter 4 in a separate control cabinet, not shown, away from the external vibrator 3.
- the acceleration sensor 5 is also part of the vibrating unit 1 preferably either on the external vibrator 3 or directly on the formwork 2 is attached to capture the generated vibration as precisely as possible to be able to.
- the acceleration sensor 5 registers the vibration caused and acting on the formwork 2 accelerations and generates a signal therefrom, which is passed on to the controller 6.
- the controller 6 can - depending on the embodiment of the invention - as Regulation can be implemented based on those measured by the acceleration sensor 5 Acceleration values and a corresponding setpoint specification controls the frequency converter 4. The following are also suitable as parameters measured vibration frequency also the measured acceleration values. A permissible control range or also a can be in the control 6 Map be saved. with the help of which the controller 6 taking into account the signal from the acceleration sensor 5 the operation of the external vibrator 3 influenced.
- vibrating units 1 are attached to the formwork 2, it can be particularly advantageous according to an embodiment of the invention, if the vibrating units 1 or their respective controls 6 via a data line 7 are coupled together.
- the controls 6 can provide information to one another exchange and each other about certain operating conditions inform.
- the data line 7 is also coupled to a host computer 8, Via which each of the controls 6 can be controlled centrally. from Each computer 6 becomes the master computer 8 for the corresponding production step operating parameters required when producing the concrete parts supplied in the form of setpoints.
- the host computer 8 gives e.g. each one Control 6 in front of what frequency at this time the external vibrator 3 should run, or which acceleration values should be achieved.
- the master computer 8 can also have a corresponding permissible control range transmit to the controller 6, within which the controller 6 is autonomous, controls the external vibrator 3 in accordance with the stored control program.
- the master computer 8 makes it possible to fill the liquid concrete into the through the formwork 2 determined form the vibrating units 1 initially drive at a low frequency to avoid excessive noise generation.
- the host computer 8 increases the frequency of the external vibrators 3.
- each local controller 6 determines whether the assigned external vibrator 3 reached the required acceleration on the formwork 2. If the measured acceleration is insufficient, the controller 6 increases it Frequency of the external vibrator 3 via the frequency converter 4. If it is too large However, acceleration reduces the frequency.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Description
Die Erfindung betrifft eine Betonverdichtungsanordnung gemäß dem Oberbegriff
von Patentanspruch 1.The invention relates to a concrete compacting arrangement according to the preamble
of
Eine derartige Anordnung dient zum Verdichten von noch plastisch verformbarem Beton, der zur Erzeugung von Betonteilen in eine Schalung eingefüllt worden ist. An der Schalung sind mindestens eine, üblicherweise aber mehrere Rütteleinheiten befestigt, die häufig jeweils einen Außenrüttler aufweisen. Ein derartiger Außenrüttler besteht üblicherweise aus einem Motor, der ein oder mehrere aus Fliehgewichten bestehende Unwuchten antreibt und dadurch eine Schwingung erzeugt, die über eine starre Verbindung auf die Schalung übertragen wird. Durch das Rütteln der Schalung kann der Beton in der gewünschten Weise verdichtet werden.Such an arrangement is used to compress still plastically deformable Concrete that is poured into a formwork to produce concrete parts has been. There is at least one, but usually several, on the formwork Vibration units attached, which often each have an external vibrator. Such an external vibrator usually consists of a motor that drives one or more unbalances consisting of flyweights and thereby generating an oscillation which is transmitted to the Formwork is transferred. By shaking the formwork, the concrete can be compressed in the desired manner.
Üblicherweise werden an Schalungen für größere Betonteile eine bestimmte Anzahl von Außenrüttlern angeordnet, die alle mit einem gemeinsamen Frequenzumformer gekoppelt sind, der für die angeschlossenen Elektromotoren eine elektrische Wechselspannung mit der gewünschten Frequenz bereitstellt.Usually, a specific form is used on formwork for larger concrete parts Number of external vibrators arranged, all with a common Frequency converter are coupled, for the connected electric motors provides an electrical alternating voltage with the desired frequency.
In der Praxis tritt häufig das Problem auf, daß bestimmte Bereiche der Schalung und damit Teile des Betons nicht ausreichend gerüttelt und dadurch verdichtet werden. Wenn der Bediener dieses Problem erkannt hat, erhöht er üblicherweise die vom Frequenzumformer bereitgestellte Spannungsfrequenz: Die Frequenzerhöhung betrifft allerdings alle angeschlossenen Außenrüttler gleichzeitig, unabhängig davon, ob sich die Rüttler in der Nähe des bisher schwach erregten Betons oder an einer Stelle mit bereits starker Erregung befinden. Dies führt zu einer erheblichen Lärm- und Materialbelastung, die sowohl für die Bediener als auch für die Schalung nachteilig ist.In practice, the problem often arises that certain areas of the formwork and therefore parts of the concrete are not shaken sufficiently and as a result be compressed. When the operator detects this problem, he increases Usually the voltage frequency provided by the frequency converter: However, the frequency increase affects all connected external vibrators at the same time, regardless of whether the vibrators are close to the previously weakly excited concrete or in a place with already strong excitation are located. This leads to considerable noise and material pollution is disadvantageous both for the operator and for the formwork.
Aus der DE 195 42 868 A1 ist eine Betonverdichtungsanordnung mit zwei an einer Schalung befestigten und jeweils eine Schwingungserzeugungseinrichtung aufweisenden Rütteleinheiten bekannt.DE 195 42 868 A1 discloses a concrete compacting arrangement with two attached to a formwork and each have a vibration generator having vibrating units known.
Die Schwingung der Schalung wird jeweils durch an den Rütteleinheiten befestigte Beschleunigungssensoren erfaßt und an eine gemeinsame Signalverarbeitungseinheit weitergeleitet. An die Signalverarbeitungseinheit ist eine Datenverarbeitungslogik angeschlossen, die aus den Meßwerten und aus abgespeicherten Vergleichswerten eine Prognose über die zu erwartende Produktqualität der Betonformteile erstellt.The vibration of the formwork is attached to the vibrating units Acceleration sensors are detected and sent to a common signal processing unit forwarded. To the signal processing unit is a Data processing logic connected from the measured values and from stored Comparative values a forecast of the expected product quality of the molded concrete parts.
Die für alle Rütteleinheiten maßgebliche zentrale Steuerung erfordert im Vorfeld eine sehr genaue Ermittlung der im Betrieb möglichen Parameter. Für diesen Zweck wird z. B. die Abspeicherung eines Expertenkatalogs vorgeschlagen. Die Anpassung der Verdichtungsanordnung für verschiedene Formteile bzw. der Betrieb von mehr als zwei Rütteleinheiten erfordert somit einen ganz erheblichen Aufwand für die Festlegung des Expertenkatalogs.The central control that is decisive for all vibrating units requires in advance a very precise determination of the parameters possible during operation. For this purpose is e.g. B. suggested saving an expert catalog. The adjustment of the compression arrangement for different Molded parts or the operation of more than two vibrating units therefore requires a very considerable effort for the definition of the expert catalog.
Eine ähnliche Anordnung ist aus der DE 297 12 242 U1 bekannt. Dort sind an einem Rütteltisch mehrere Schwingungserzeugungseinrichtungen vorgesehen, deren Frequenz und relative Phasenlage einzeln einstellbar sind. Dazu sind an dem Rütteltisch mehrere Sensoren angeordnet, die die Gesamtreaktion, d. h. Gesamtschwingung des Rütteltisches erfassen und als Meßsignal an eine gemeinsame Steuerung weitergeben. Auch bei dieser Anordnung ist es erforderlich, daß in den als Steuerung dienenden Vektorreglern aufwendige Regelalgorithmen, Kennfelder etc. abgespeichert sind, um die gewünschten komplexen Schwingungsreaktionen zu erhalten. Andernfalls können die Rückmeldungen von den Sensoren nur unbefriedigend ausgewertet werden.A similar arrangement is known from DE 297 12 242 U1. There are several vibration generating devices are provided on a vibrating table, whose frequency and relative phase position are individually adjustable. To several sensors are arranged on the vibrating table, which determine the overall reaction, d. H. Record the total vibration of the vibrating table and apply it as a measuring signal pass on a common control. It is also with this arrangement required that in the vector controllers serving as control complex Control algorithms, maps, etc. are stored to the desired to get complex vibrational reactions. Otherwise they can Feedback from the sensors can only be evaluated unsatisfactorily.
Ein prinzipiell vergleichbarer Aufbau ist der DE 36 40 079 A1 entnehmbar.A structure that is comparable in principle can be found in DE 36 40 079 A1.
Der Erfindung liegt die Aufgabe zugrunde, eine Betonverdichtungsanordnung anzugeben, bei der nur solche Bereiche der Schalung stärker erregbar sind, die bis dahin noch nicht mit der gewünschten Stärke schwingen, wobei eine flexible und einfache Anpassung der Betonverdichtungsanordnung an verschiedene Schalungsgeometrien und eine verschiedene Anzahl von Außenrüttlern anzustreben ist.The invention has for its object a concrete compacting arrangement specify where only those areas of the formwork are more excitable, which have not yet vibrated with the desired strength, whereby one flexible and easy adaptation of the concrete compaction arrangement to different Formwork geometries and a different number of external vibrators is to be aimed for.
Erfindungsgemäß wird die Aufgabe durch eine Betonverdichtungsanordnung
mit den Merkmalen von Patentanspruch 1 gelöst. Vorteilhafte Weiterentwicklungen
der Erfindung sind den abhängigen Ansprüchen zu entnehmen. According to the invention, the object is achieved by a concrete compacting arrangement
solved with the features of
Erfindungsgemäß sind mehrere Rütteleinheiten vorgesehen, die jeweils eine eigene Schwingungserzeugungseinrichtung, einen eigenen Beschleunigungssensor, einen eigenen Frequenzumformer und eine eigene Steuerung aufweisen. Dadurch kann die Schwingungsstärke an den einzelnen Stellen der Schalung sehr genau und individuell durch Ansteuern der einzelnen Rütteleinheiten erfolgen. Um eine Koordination der Steuerungen zu ermöglichen, sind bei einer vorteilhaften Weiterentwicklung die Steuerungen der jeweiligen Rütteleinheiten über eine Datenleitung miteinander gekoppelt. Die Datenleitung kann auch mit einem gemeinsamen Leitrechner verbunden sein, der zur individuellen Ansteuerung der Rütteleinheiten dient. According to the invention, several vibrating units are provided, each one own vibration generator, own acceleration sensor, have their own frequency converter and control. This allows the vibration strength at the individual points of the Formwork very precisely and individually by controlling the individual vibrating units respectively. To enable coordination of the controls, are the controls of the respective with an advantageous further development Vibrating units coupled together via a data line. The data line can also be connected to a common host computer which is used for individual control of the vibrating units.
Durch die erfindungsgemäße Lösung ist es möglich, über den Beschleunigungssensor die an der Schalung wirkende Schwingung zu erfassen. Ein der Schwingung entsprechender, sich permanent ändernder Beschleunigungswert wird an die Steuerung geliefert, die entsprechend die Betriebsparameter der Schwingungserzeugungseinrichtung variieren kann. um an der Schalung die gewünschte Schwingung zu erzeugen. So ist es zum Beispiel möglich, daß die Steuerung die Frequenz der Schwingungserzeugungseinrichtung erhöht, wenn der Beschleunigungssensor eine zu niedrige Schwingung der Schalung detektiert hat.The solution according to the invention makes it possible to use the acceleration sensor to detect the vibration acting on the formwork. One of the Vibration corresponding, permanently changing acceleration value is delivered to the controller, which corresponds to the operating parameters of the vibration generator can vary. around on the formwork to generate the desired vibration. For example, it is possible that the controller increases the frequency of the vibration generator, if the accelerometer vibration of the formwork is too low has detected.
Durch Ansteuern des Frequenzumformers mittels der Steuerung ist es in einfacher Weise möglich, die Schwingungsfrequenz der Schwingungserzeugungseinrtchtung zu variieren.It is easier to control the frequency converter by means of the control Way possible, the oscillation frequency of the oscillation generating device to vary.
Bei einer besonders vorteilhaften Ausführungsform der Erfindung ist der Beschleunigungssensor an der Schwingungserzeugungseinrichtung oder an der Schalung befestigt. Damit ist es möglich, daß der Beschleunigungssensor entweder die Schwingung direkt an der Schalung oder - aufgrund einer starren Befestigung der Schwingungserzeugungseinrichtung an der Schalung-an der die gleiche Schwingung wie die Schalung erfahrenden Schwingungserzeugungseinrichtung abgreifen kann.In a particularly advantageous embodiment of the invention, the acceleration sensor on the vibration generating device or on the Formwork attached. This makes it possible for the acceleration sensor either the vibration directly on the formwork or - due to a rigid Attachment of the vibration generator to the formwork the vibration generator experiencing the same vibration as the formwork can tap.
Als Sollwerte für die an den Rütteleinheiten vorgesehenen Einzelsteuerungen eignen sich die Frequenz der Schwingungserzeugungseinrichtung, eine Soll-Beschleunigung oder ein zulässiger Regelbereich innerhalb dem die Einzelsteuerung in Abhängigkeit von dem gemessenen Schwingungssignal die Schwingungserzeugungseinrichtung ansteuern kann.As target values for the individual controls provided on the vibrating units are the frequency of the vibration generating device, a target acceleration or a permissible control range within which the individual control depending on the measured vibration signal Can control vibration generating device.
Diese und weitere Vorteile und Merkmale der Erfindung werden nachfolgend anhand eines Beispiels unter Bezugnahme auf die Figur näher erläutert. Die Figur zeigt schematisch den Aufbau einer erfindungsgemäßen Betonverdichtungsanordnung.These and other advantages and features of the invention are set out below explained in more detail using an example with reference to the figure. The Figure shows schematically the structure of a concrete compaction arrangement according to the invention.
Eine erfindungsgemäße Betonverdichtungsanordnung weist mehrere Rütteleinheiten
1 auf, die jeweils an einer ebenfalls nur schematisch dargestellten
und zur Aufnahme von flüssigem Beton dienenden Schalung 2 angeordnet
sind. Die Rütteleinheiten 1 bestehen jeweils aus einem als Schwingungserzeugungseinrichtung
dienenden, an der Schalung 2 starr befestigten Außenrüttler
3 sowie einem Frequenzumformer 4, einem Beschleunigungssensor 5
und einer Steuerung 6. Zur Vereinfachung der Darstellung wird in der Figur
nur der Aufbau von einer der Rütteleinheiten 1 gezeigt.A concrete compaction arrangement according to the invention has several vibrating
Der an sich bekannte Außenrüttler 3 besteht im wesentlichen aus einem Elektromotor und einem oder zwei von dem Motor angetriebenen Fliehgewichten, die bei Drehung die erforderliche Unwucht zur Erzeugung der gewollten Schwingungen bewirken. Um die Schwingungen möglichst verlustfrei auf die Schalung 2 zu übertragen, muß der Außenrüttler 3 mit der Schalung 2 starr verbunden sein. Wie bereits beschrieben, ist der Außenrüttler 3 als solcher bekannt, so daß auf eine weitere Beschreibung sowie eine Darstellung in der Figur verzichtet wird.The known external vibrator 3 consists essentially of a Electric motor and one or two flyweights driven by the motor, the rotation required to create the unbalance required Cause vibrations. To make the vibrations as lossless as possible To transfer to the formwork 2, the external vibrator 3 with the formwork 2 be rigidly connected. As already described, the external vibrator 3 is a such known, so that on a further description and an illustration is omitted in the figure.
Um die Schwingungsfrequenz einstellen zu können, ist dem Elektromotor des Außenrüttlers 3 ein Frequenzumformer 4 vorgeschaltet, der in bekannter Weise mit dem Stromnetz verbunden ist. Der Frequenzumformer 4 wandelt die Netzfrequenz in eine für den Außenrüttler 3 geeignete Spannungsfrequenz um. Während es bekannt ist, alle mit der Schalung 2 verbundenen Außenrüttler 3 durch einen Frequenzumformer 4 zu speisen, ist erfindungsgemäß für jeden Außenrüttler 3 ein eigener Frequenzumformer 4 vorgesehen.In order to set the vibration frequency, the electric motor is the External vibrator 3 upstream of a frequency converter 4, which in known Way is connected to the mains. The frequency converter 4 converts the mains frequency into a voltage frequency suitable for the external vibrator 3 around. While it is known, all external vibrators connected to the formwork 2 3 to feed by a frequency converter 4 is according to the invention a separate frequency converter 4 is provided for each external vibrator 3.
In der Figur ist der Frequenzumformer 4 direkt an dem Außenrüttler 3 angeordnet. Je nach Ausführungsform kann es jedoch auch zweckmäßig sein. den Frequenzumformer 4 in einem nicht dargestellten, separaten Schaltschrank, abseits des Außenrüttlers 3, vorzusehen.In the figure, the frequency converter 4 is arranged directly on the external vibrator 3. Depending on the embodiment, however, it may also be appropriate. the frequency converter 4 in a separate control cabinet, not shown, away from the external vibrator 3.
Bestandteil der Rütteleinheit 1 ist auch der Beschleunigungssensor 5, der
vorzugsweise entweder an dem Außenrüttler 3 oder direkt auf der Schalung
2 angebracht wird, um möglichst präzise die erzeugte Schwingung erfassen
zu können. Der Beschleunigungssensor 5 registriert die durch die Schwingung
hervorgerufenen und auf die Schalung 2 wirkenden Beschleunigungen
und erzeugt daraus ein Signal, das an die Steuerung 6 weitergeführt wird.The acceleration sensor 5 is also part of the vibrating
Die Steuerung 6 kann - je nach Ausgestaltung der Erfindung - auch als Regelung realisiert sein, die aufgrund der vom Beschleunigungssensor 5 gemessenen Beschleunigungswerte und einer entsprechenden Sollwert-Vorgabe den Frequenzumformer 4 ansteuert. Als Parameter eignen sich außer der gemessenen Schwingungsfrequenz auch die gemessenen Beschleunigungswerte. In der Steuerung 6 kann ein zulässiger Regelbereich oder auch ein Kennfeld abgespeichert sein. mit Hilfe dessen die Steuerung 6 unter Berücksichtigung des Signals vom Beschleunigungssensor 5 den Betrieb des Außenrüttlers 3 beeinflußt.The controller 6 can - depending on the embodiment of the invention - as Regulation can be implemented based on those measured by the acceleration sensor 5 Acceleration values and a corresponding setpoint specification controls the frequency converter 4. The following are also suitable as parameters measured vibration frequency also the measured acceleration values. A permissible control range or also a can be in the control 6 Map be saved. with the help of which the controller 6 taking into account the signal from the acceleration sensor 5 the operation of the external vibrator 3 influenced.
Wenn mehrere Rütteleinheiten 1 an der Schalung 2 befestigt sind, kann es
gemäß einer Ausführungsform der Erfindung besonders vorteilhaft sein,
wenn die Rütteleinheiten 1 bzw. ihre jeweiligen Steuerungen 6 über eine Datenleitung
7 miteinander gekoppelt sind. Über die beispielsweise als Datenbus
ausgeführte Datenleitung 7 können die Steuerungen 6 miteinander Informationen
austauschen und sich gegenseitig über bestimmte Betriebszustände
informieren.If several
Bei der in der Figur dargestellten, besonders vorteilhaften Ausführungsform der Erfindung ist die Datenleitung 7 noch mit einem Leitrechner 8 gekoppelt, über den zentral jede einzelne der Steuerungen 6 ansteuerbar ist. Vom Leitrechner 8 werden jeder Steuerung 6 die zu dem entsprechenden Fertigungsschritt beim Erzeugen der Betonteile erforderlichen Betriebsparameter in Form von Sollwerten zugeführt. Der Leitrechner 8 gibt z.B. jeder einzelnen Steuerung 6 vor, mit welcher Frequenz zu diesem Zeitpunkt der Außenrüttler 3 laufen soll, bzw. welche Beschleunigungswerte erreicht werden sollen. Dazu kann der Leitrechner 8 auch einen entsprechenden zulässigen Regelbereich an die Steuerung 6 übermitteln, innerhalb dem die Steuerung 6 autark, entsprechend dem abgelegten Steuerprogramm den Außenrüttler 3 ansteuert.In the particularly advantageous embodiment shown in the figure According to the invention, the data line 7 is also coupled to a host computer 8, Via which each of the controls 6 can be controlled centrally. from Each computer 6 becomes the master computer 8 for the corresponding production step operating parameters required when producing the concrete parts supplied in the form of setpoints. The host computer 8 gives e.g. each one Control 6 in front of what frequency at this time the external vibrator 3 should run, or which acceleration values should be achieved. For this purpose, the master computer 8 can also have a corresponding permissible control range transmit to the controller 6, within which the controller 6 is autonomous, controls the external vibrator 3 in accordance with the stored control program.
Der Leitrechner 8 ermöglicht es, beim Füllen des flüssigen Betons in die
durch die Schalung 2 bestimmte Form die Rütteleinheiten 1 zunächst mit
niedriger Frequenz zu fahren, um eine übermäßige Lärmerzeugung zu vermeiden.
Beim anschließenden Verdichtungsprozeß wird durch den Leitrechner
8 die Frequenz der Außenrüttler 3 erhöht. Über die jeweiligen Beschleunigungssensoren
5 ermittelt jede lokale Steuerung 6, ob der zugeordnete Außenrüttler
3 die erforderliche Beschleunigung an der Schalung 2 erreicht.
Reicht die gemessene Beschleunigung nicht aus, erhöht die Steuerung 6 die
Frequenz des Außenrüttlers 3 über den Frequenzumformer 4. Bei zu großer
Beschleunigung hingegen wird die Frequenz vermindert.The master computer 8 makes it possible to fill the liquid concrete into the
through the formwork 2 determined form the vibrating
Je nach Motortyp des Außenrüttlers 3 ist es auch möglich, bei konstanter Frequenz die Stellung der Rotoren bzw. Fliehgewichte zueinander und damit die auf die Schalung wirkenden Kräfte bzw. Beschleunigungen zu beeinflussen. Die Relativstellung der Rotoren beeinflußt in bekannter Weise den Schwerpunkt der Unwucht und damit die Stärke des resultierenden Kraftvektors zum jeweiligen Zeitpunkt.Depending on the motor type of the external vibrator 3, it is also possible to use a constant one Frequency the position of the rotors or centrifugal weights to each other and thus to influence the forces or accelerations acting on the formwork. The relative position of the rotors influences the in a known manner The center of gravity of the unbalance and thus the strength of the resulting force vector at the respective time.
Da die erfindungsgemäße Betonverdichtungsanordnung für die verschiedensten Arten von Schwingungserzeugungseinrichtungen realisierbar ist, ist es offensichtlich, daß in einigen Fällen kein Frequenzumformer 4 erforderlich ist, wenn die auf die Schalung 2 wirkende Schwingung mit Hilfe der Steuerung 6 auch auf andere Weise beeinflußt werden kann. Das oben beschriebene Beispiel dient daher nur zur Erläuterung der Erfindung, nicht jedoch zur Einschränkung des Schutzumfangs.Since the concrete compaction arrangement according to the invention for the most varied Types of vibration generating devices is realizable, it is obvious that in some cases no frequency converter 4 is required is when the vibration acting on the formwork 2 with the help of the control 6 can also be influenced in other ways. The one described above The example therefore serves only to explain the invention, but not to limit the scope of protection.
Claims (7)
- Concrete-compacting arrangement for compacting plastically deformable concrete in an encasing (2), having at least two vibrating units (1) attached to the encasing (2), which vibrating units each comprise a vibration-producing device (3), characterised in that they also each comprisean acceleration sensor (5) for generating a signal corresponding to a vibration produced by the vibration-producing device (3) on the encasing (2),a control (6), which can be influenced by the signal, for adjusting operation parameters of the vibration-producing device (3), anda frequency converter (4), which can be influenced by the control (6), for the vibration-producing device (3).
- Arrangement as claimed in Claim 1, characterised in that the vibration-producing device is an external vibrator (3).
- Arrangement as claimed in any one of the preceding Claims, characterised in that the acceleration sensor (5) is attached to the vibration-producing device (3) or to the encasing (2).
- Arrangement as claimed in any one of the preceding Claims, characterised in that the controls (6) of each of the vibration units (1) are coupled to each other via a data line (7).
- Arrangement as claimed in Claim 4, characterised in that the controls (6) of each of the vibration units (1) can be controlled via a master computer (8) connected to the data line (7).
- Arrangement as claimed in any one of the preceding Claims, characterised in that the controls (6) can be influenced by means of set values.
- Arrangement as claimed in Claims 5 and 6, characterised in that the set values can be inputted via the master computer (8).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19811344 | 1998-03-16 | ||
| DE19811344A DE19811344C2 (en) | 1998-03-16 | 1998-03-16 | Concrete compacting arrangement with vibration sensor and control |
| PCT/EP1999/001692 WO1999047322A1 (en) | 1998-03-16 | 1999-03-15 | Concrete compacting device with vibration sensor and control unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1064131A1 EP1064131A1 (en) | 2001-01-03 |
| EP1064131B1 true EP1064131B1 (en) | 2004-01-28 |
Family
ID=7861053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99915614A Expired - Lifetime EP1064131B1 (en) | 1998-03-16 | 1999-03-15 | Concrete compacting device with vibration sensor and control unit |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6544025B1 (en) |
| EP (1) | EP1064131B1 (en) |
| JP (1) | JP2002506748A (en) |
| DE (2) | DE19811344C2 (en) |
| ES (1) | ES2213362T3 (en) |
| WO (1) | WO1999047322A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19913077C2 (en) * | 1999-03-23 | 2003-06-12 | Wacker Construction Equipment | Internal vibrator with measuring system |
| DE10059467A1 (en) * | 2000-11-30 | 2002-06-13 | Wacker Werke Kg | Concrete compacting arrangement with radio controlled external vibrators |
| DE10124145C1 (en) * | 2001-05-17 | 2002-08-14 | Wacker Werke Kg | Internal vibrator for compacting concrete |
| DE20219768U1 (en) * | 2002-12-20 | 2003-03-06 | KOBRA Formen GmbH, 08485 Lengenfeld | Device for the production of concrete blocks |
| PL1741068T3 (en) | 2004-04-20 | 2009-10-30 | Rampf Formen Gmbh | Device for monitoring and controlling or regulating a machine |
| DE102007009508B3 (en) * | 2007-02-27 | 2008-06-19 | Wacker Construction Equipment Ag | External vibrator for fixing to concrete formwork, has detection unit provided for inductive detection of power status in power supply line and display device to display optical signal corresponding to detected power status |
| DE102007048980A1 (en) * | 2007-10-12 | 2009-04-23 | Wacker Construction Equipment Ag | Ground ramming device with adaptive drive control |
| CN107100359B (en) * | 2017-05-17 | 2022-11-11 | 浙江宝杰环保科技有限公司 | Building template capable of being separated and cleaned |
| CN109079961A (en) * | 2018-09-26 | 2018-12-25 | 天津城建大学 | A kind of precast concrete vibrates parameter monitoring and processing system |
| DE102021106330A1 (en) | 2021-03-16 | 2022-09-22 | Wacker Neuson Produktion GmbH & Co. KG | Concrete compaction system and method for compacting concrete parts as part of a concrete compaction process |
| CN113276252A (en) * | 2021-04-27 | 2021-08-20 | 浙江嘉兴御豪智能装备有限公司 | Concrete distributing system and concrete distributing method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3640079A1 (en) * | 1986-11-24 | 1988-06-01 | Erwin Dipl Phys Schaefer | Apparatus for automatically adapting the working method of vibrators for material compaction to the respective state of the material to be compacted |
| DE4030665C1 (en) * | 1990-09-28 | 1991-10-24 | Carl Schenck Ag, 6100 Darmstadt, De | Regulating RPM of drive motor(s) of load-excited screening machine - supplying actual oscillating value to regulator and measuring resultant power output of motor(s) |
| JPH05156811A (en) * | 1991-12-09 | 1993-06-22 | Fujita Corp | Automatic concrete compaction system |
| TW274529B (en) * | 1993-10-21 | 1996-04-21 | Hitachi Shipbuilding Eng Co | |
| DE4400839A1 (en) * | 1994-01-14 | 1995-07-20 | Avermann Maschinenfabrik Betri | Synchronised vibrator system for multi-form precast concrete |
| DE19542868A1 (en) * | 1995-11-17 | 1997-05-22 | Stn Atlas Elektronik Gmbh | Monitoring system for jolting moulding machine for production of concrete shaped parts |
| DE29712242U1 (en) * | 1997-07-11 | 1997-09-18 | Lonz Industrieautomation GmbH, 65510 Hünstetten | Unbalance shaker |
-
1998
- 1998-03-16 DE DE19811344A patent/DE19811344C2/en not_active Expired - Fee Related
-
1999
- 1999-03-15 EP EP99915614A patent/EP1064131B1/en not_active Expired - Lifetime
- 1999-03-15 JP JP2000536540A patent/JP2002506748A/en not_active Ceased
- 1999-03-15 US US09/646,483 patent/US6544025B1/en not_active Expired - Fee Related
- 1999-03-15 WO PCT/EP1999/001692 patent/WO1999047322A1/en active IP Right Grant
- 1999-03-15 DE DE59908423T patent/DE59908423D1/en not_active Expired - Lifetime
- 1999-03-15 ES ES99915614T patent/ES2213362T3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1064131A1 (en) | 2001-01-03 |
| DE59908423D1 (en) | 2004-03-04 |
| WO1999047322A1 (en) | 1999-09-23 |
| ES2213362T3 (en) | 2004-08-16 |
| US6544025B1 (en) | 2003-04-08 |
| DE19811344A1 (en) | 1999-10-07 |
| DE19811344C2 (en) | 2002-06-27 |
| JP2002506748A (en) | 2002-03-05 |
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