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EP0604723A1 - Internal vibrator fed by a transformer - Google Patents

Internal vibrator fed by a transformer Download PDF

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Publication number
EP0604723A1
EP0604723A1 EP93116907A EP93116907A EP0604723A1 EP 0604723 A1 EP0604723 A1 EP 0604723A1 EP 93116907 A EP93116907 A EP 93116907A EP 93116907 A EP93116907 A EP 93116907A EP 0604723 A1 EP0604723 A1 EP 0604723A1
Authority
EP
European Patent Office
Prior art keywords
electric motor
internal vibrator
converter
switch
internal
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.)
Granted
Application number
EP93116907A
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German (de)
French (fr)
Other versions
EP0604723B1 (en
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 Werke GmbH and Co KG
Original Assignee
Wacker Werke GmbH and Co KG
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
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Application filed by Wacker Werke GmbH and Co KG filed Critical Wacker Werke GmbH and Co KG
Publication of EP0604723A1 publication Critical patent/EP0604723A1/en
Application granted granted Critical
Publication of EP0604723B1 publication Critical patent/EP0604723B1/en
Anticipated expiration legal-status Critical
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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

Definitions

  • the invention relates to an internal vibrator according to the preamble of patent claim 1.
  • the converters were provided as separate devices from the internal vibrators, which were connected to the network at the construction site and to which the external vibrators were then connected individually or in groups using the plug of their power supply cable.
  • the invention has for its object to simplify the handling of internal vibrators according to the preamble of claim 1.
  • the subclaims relate to preferred embodiments of the internal vibrator according to claim 1.
  • the internal vibrator shown in the drawing has a vibrating bottle 1, in the vibrator housing 1a of which an electric motor (not shown in the drawing) is installed, which rotates an unbalanced mass also arranged in the vibrator housing 1a about the longitudinal axis of the vibrating bottle 1.
  • the electric motor operates at a frequency which is higher than the general mains frequency, and the electrical energy is supplied to it via a switch 2a which is installed in the power supply cable 3 at such a distance from the vibrating bottle 1 that it is still outside the concrete when the vibrating bottle 1 is lowered into the concrete to be compacted via its pre-planned maximum working depth.
  • One of the usual maximum working depths are e.g. B. 6 m.
  • the power supply cable 3 is surrounded by a protective and operating hose 4 made of wear-resistant flexible material.
  • the protective tube 4 extends usually, as shown in the drawing, also a little beyond the switch 2a. At the end of the power supply cable 3 there is a plug 5.
  • the connector 5 has been connected to a converter, which supplied the higher-frequency alternating current compared to the mains frequency and was connected to the mains or to a construction site generator operating at the mains frequency via a further power supply cable.
  • the electric motor built into the vibrating bottle is usually a three-phase motor, so that the inverters are set up to supply a three-phase current of a higher frequency than the mains frequency.
  • the internal vibrator shown in the drawing differs in that the transducer 2b is installed at the location of the operating switch 2a for the vibrating bottle 1 in the power supply cable 3 or the protective and operating hose 4 and with it is combined into a miniaturized installation unit 6 with a common housing 6a.
  • the power supply cable 3 can be designed as a single-phase AC line with a protective conductor.
  • the converter 2b generates the three-phase current of higher frequency from the single-phase alternating current supplied to it from the mains frequency.
  • Electrical circuit arrangements that are capable of this are known from the basic structure, so that the converter 2b in this regard need not be explained in more detail. When designing the circuit, however, attention must be paid to the greatest possible miniaturization of the combination of switch 2a and converter 2b according to the prior art.
  • the switch part 2a of the installation unit 6 can be controlled in the usual way by the operator of the internal vibrator by means of an actuating element 2a '.
  • the converter 2b can also be set up in a known manner for supplying a feed current of variable frequency to the electric motor in the vibrating bottle 1, in which case a further actuating element 2b 'for frequency control for the operator is provided on the installation unit 6.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

An internal vibrator is proposed for compacting concrete, which internal vibrator is provided in a known manner, for driving the unbalanced mass, with an electric motor which is arranged in the vibrator casing 1a, operates at a higher frequency than the mains frequency and is fed by a transformer 2b, and with a switch 2a, which is for switching the electric motor on and off and is inserted, in the region of the insulating and operating tube 4, into the power lead 3 leading to the electric motor. According to the invention, the transformer 2a is combined with the switch 2b to form a miniaturised assembly 6. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Innenrüttler gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to an internal vibrator according to the preamble of patent claim 1.

Bisher wurden die Umformer als von den Innenrüttlern gesonderte Geräte bereitgestellt, die auf der Baustelle mit dem Netz verbunden wurden und an die dann die Außenrüttler einzeln oder zu mehreren mit dem Stecker ihres Stromzuführungskabels angeschlossen wurden.So far, the converters were provided as separate devices from the internal vibrators, which were connected to the network at the construction site and to which the external vibrators were then connected individually or in groups using the plug of their power supply cable.

Der Erfindung liegt die Aufgabe zugrunde, die Handhabung von Innnenrüttlern gemäß dem Oberbegriff des Patentanspruchs 1 zu vereinfachen.The invention has for its object to simplify the handling of internal vibrators according to the preamble of claim 1.

Die vorstehende Aufgabe wird durch die im Kennzeichnungsteil des Patentanspruchs 1 genannten Merkmale gelöst.The above object is achieved by the features mentioned in the characterizing part of patent claim 1.

Gegenüber dem bisherigen System mit dem Umformer als vom eigentlichen Innenvibrator gesonderte Baueinheit ergeben sich für die Erfindung insbesondere die nachstehenden Vorteile:

  • 1. Der Umformer ist unverlierbar und unvergeßbar mit dem zugehörigen Innenrüttler verbunden.
  • 2. Da jedem Innenvibrator individuell sein Umformer zugeordnet ist, ist eine eventuell vorhandene Möglichkeit der Umschaltung auf unterschiedliche Betriebsfrequenzen vielfältiger nutzbar als bei Verwendung eines einzigen Umformers für mehrere Innenrüttler.
  • 3. Mit dem Abschalten des Innenrüttlers wird auch der Umformer vollständig mit abgeschaltet, und
  • 4. ein eventueller Ausfall des Umformers betrifft nur einen einzigen Innenrüttler.
Compared to the previous system with the converter as a separate unit from the actual internal vibrator, the following advantages result in particular for the invention:
  • 1. The converter is captive and unmistakably connected to the associated vibrator.
  • 2. Because each internal vibrator is individually assigned its converter is, a possible possibility of switching to different operating frequencies is more versatile than when using a single converter for several internal vibrators.
  • 3. When the internal vibrator is switched off, the converter is also switched off completely, and
  • 4. A possible failure of the converter affects only a single internal vibrator.

Die Unteransprüche haben bevorzugte Ausführungsformen des Innenrüttlers gemäß Patentanspruch 1 zum Gegenstand.The subclaims relate to preferred embodiments of the internal vibrator according to claim 1.

Die Erfindung wird nachstehend anhand der Zeichnung an einem Ausführungsbeispiel noch näher erläutert. Die einzige Figur der Zeichnung zeigt einen neuerungsgemäßen Innenrüttler in Ansicht von der Seite.The invention is explained in more detail below with reference to the drawing using an exemplary embodiment. The only figure in the drawing shows an internal vibrator according to the invention viewed from the side.

Der in der Zeichnung dargestellte Innenrüttler weist eine Rüttelflasche 1 auf, in deren Rüttlergehäuse 1a ein in der Zeichnung nicht zu sehender Elektromotor eingebaut ist, der eine ebenfalls im Rüttlergehäuse 1a angeordnete Unwuchtmasse um die Längsachse der Rüttelflasche 1 in Drehung versetzt. Der Elektromotor arbeitet mit einer gegenüber der allgemeinen Netzfrequenz höheren Frequenz, und die elektrische Energie wird ihm über einen Schalter 2a zugeführt, der in das Stromzuführungskabel 3 in einem solchen Abstand von der Rüttelflasche 1 eingebaut ist, daß er sich noch außerhalb des Betons befindet, wenn die Rüttelflasche 1 über ihre vorgeplante maximale Arbeitstiefe in den zu verdichtendne Beton hinein abgesenkt ist. Eine der gebräuchlichen maximalen Arbeitstiefen sind z. B. 6 m. Über diesen Abstand zwischen der Rüttelflasche 1 und dem Schalter 2a ist das Stromzuführungskabel 3 von einem Schutz- und Bedienungsschlauch 4 aus verschleißfestem biegsamen Material umgeben. Der Schutzschlauch 4 erstreckt sich gewöhnlich, wie in der Zeichnung dargestellt, auch noch ein Stück über den Schalter 2a hinaus. Am Ende des Stromzuführungskabels 3 befindet sich ein Stecker 5.The internal vibrator shown in the drawing has a vibrating bottle 1, in the vibrator housing 1a of which an electric motor (not shown in the drawing) is installed, which rotates an unbalanced mass also arranged in the vibrator housing 1a about the longitudinal axis of the vibrating bottle 1. The electric motor operates at a frequency which is higher than the general mains frequency, and the electrical energy is supplied to it via a switch 2a which is installed in the power supply cable 3 at such a distance from the vibrating bottle 1 that it is still outside the concrete when the vibrating bottle 1 is lowered into the concrete to be compacted via its pre-planned maximum working depth. One of the usual maximum working depths are e.g. B. 6 m. About this distance between the vibrating bottle 1 and the switch 2a, the power supply cable 3 is surrounded by a protective and operating hose 4 made of wear-resistant flexible material. The protective tube 4 extends usually, as shown in the drawing, also a little beyond the switch 2a. At the end of the power supply cable 3 there is a plug 5.

Der vorstehend beschriebene Aufbau ist als solcher bekannt. Bisher wurde der Stecker 5 an einen Umformer angeschlossen, der den gegenüber der Netzfrequenz höherfrequenten Wechselstrom lieferte und über ein weiteres Stromzuführungskabel an das Netz oder an einen mit Netzfrequenz arbeitenden Baustellen-Generator angeschlossen war. Der in die Rüttelflasche eingebaute Elektromotor ist gewöhnlich ein Drehstrommotor, so daß die Umrichter für die Lieferung eines Drehstromes von gegenüber der Netzfrequenz höherer Frequenz eingerichtet sind.The structure described above is known as such. So far, the connector 5 has been connected to a converter, which supplied the higher-frequency alternating current compared to the mains frequency and was connected to the mains or to a construction site generator operating at the mains frequency via a further power supply cable. The electric motor built into the vibrating bottle is usually a three-phase motor, so that the inverters are set up to supply a three-phase current of a higher frequency than the mains frequency.

Von dem vorgenannten Stand der Technik unterscheidet sich der in der Zeichnung dargestellte, gemäß der Erfindung gestaltete Innenrüttler dadurch, daß der Umformer 2b am Ort des Bedienungsschalters 2a für die Rüttelflasche 1 in das Stromzuführungskabel 3 bzw. den Schutz- und Bedienungsschlauch 4 eingebaut und mit diesem zu einer miniaturisierten Einbaueinheit 6 mit gemeinsamem Gehäuse 6a zusammengefaßt ist. Die Einbaueinheit 6 fügt sich ebenso wie die bei den bekannten Innenrüttlern als "Schalterei" bezeichneten Ein-Aus-Schalter in den Schutzschlauch 4 ein, ohne ein störendes Hindernis im Gebrauch des Innenrüttlers zu bilden, und sie ist untrennbar mit der Rüttelflasche 1 verbunden, so daß dieser ein eigener Umformer unverlierbar und unvergeßbar zugeordnet ist.From the aforementioned prior art, the internal vibrator shown in the drawing, designed according to the invention, differs in that the transducer 2b is installed at the location of the operating switch 2a for the vibrating bottle 1 in the power supply cable 3 or the protective and operating hose 4 and with it is combined into a miniaturized installation unit 6 with a common housing 6a. The installation unit 6, like the on-off switch referred to as "switchgear" in the known internal vibrators, fits into the protective tube 4 without forming a disturbing obstacle in the use of the internal vibrator, and it is inseparably connected to the vibrating bottle 1, so that this is a captive and unmistakable dedicated converter.

Bis zur Einbaueinheit 6 kann das Stromzuführungskabel 3 als Einphasen-Wechselstromleitung mit Schutzleiter ausgeführt sein. In diesem Falle erzeugt der Umformer 2b den Drehstrom höherer Frequenz aus dem ihm zugeführten Einphasen-Wechselstrom von Netzfrequenz. Elektrische Schaltungsanordnungen, die dies vermögen, sind vom grundsätzlichen Aufbau her bekannt, so daß der Umformer 2b in dieser Hinsicht nicht näher erläutert zu werden braucht. Beim Entwurf der Schaltung ist allerdings auf eine nach dem Stand der Technik größtmögliche Miniaturisierung der Kombination Schalter 2a und Umformer 2b zu achten.Up to the installation unit 6, the power supply cable 3 can be designed as a single-phase AC line with a protective conductor. In this case, the converter 2b generates the three-phase current of higher frequency from the single-phase alternating current supplied to it from the mains frequency. Electrical circuit arrangements that are capable of this are known from the basic structure, so that the converter 2b in this regard need not be explained in more detail. When designing the circuit, however, attention must be paid to the greatest possible miniaturization of the combination of switch 2a and converter 2b according to the prior art.

Der Schalterteil 2a der Einbaueinheit 6 ist in üblicher Weise mittels eines Betätigungselements 2a' von dem Bedienungsmann des Innenvibrators nach Bedarf steuerbar.The switch part 2a of the installation unit 6 can be controlled in the usual way by the operator of the internal vibrator by means of an actuating element 2a '.

Der Umformer 2b kann auch in einer bekannten Weise für die Lieferung eines Speisestroms veränderbarer Frequenz an den Elektromotor in der Rüttelflasche 1 eingerichtet sein, in welchem Falle an der Einbaueinheit 6 ein weiteres Betätigungselement 2b' zur Frequenzsteuerung für den Bedienungsmann vorgesehen ist.The converter 2b can also be set up in a known manner for supplying a feed current of variable frequency to the electric motor in the vibrating bottle 1, in which case a further actuating element 2b 'for frequency control for the operator is provided on the installation unit 6.

Claims (3)

Innenrüttler zum Verdichten von Beton, mit im Rüttlergehäuse (1a) angeordnetem, mit höherer als Netzfrequenz arbeitendem, von einem Umformer (2b) gespeistem Elektromotor zum Antrieb der Unwuchtmasse und mit einem im Bereich des Schutz- und Bedienungsschlauchs (4) in die Stromzuführung (3) zum Elektromotor eingebauten Schalter (2a) zum Ein- und Ausschalten des Elektromotors, dadurch gekennzeichnet, daß der Umformer (2a) mit dem Schalter (2b) zu einer miniaturisierten Einbaueinheit (6) zusammengefaßt ist.Internal vibrator for compacting concrete, with an electric motor arranged in the vibrator housing (1a), which operates at a higher frequency than the mains frequency and is powered by a converter (2b) to drive the unbalanced mass and with one in the area of the protective and operating hose (4) into the power supply (3 ) built-in to the electric motor switch (2a) for switching the electric motor on and off, characterized in that the converter (2a) with the switch (2b) is combined to form a miniaturized installation unit (6). Innenrüttler nach Anspruch 1, dadurch gekennzeichnet, daß die Einbaueinheit (6) einen langgestreckten Außenumriß hat.Internal vibrator according to claim 1, characterized in that the installation unit (6) has an elongated outer contour. Innenrüttler nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Umformer (2b) zum Erzeugen von Drehstrom aus Einphasen-Wechselstrom eingerichtet ist.Internal vibrator according to claim 1 or 2, characterized in that the converter (2b) is set up for generating three-phase current from single-phase alternating current.
EP93116907A 1992-12-30 1993-10-20 Internal vibrator fed by a transformer Expired - Lifetime EP0604723B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9217854U DE9217854U1 (en) 1992-12-30 1992-12-30 Internal vibrator fed by a converter
DE9217854U 1992-12-30

Publications (2)

Publication Number Publication Date
EP0604723A1 true EP0604723A1 (en) 1994-07-06
EP0604723B1 EP0604723B1 (en) 1996-03-27

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ID=6887695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116907A Expired - Lifetime EP0604723B1 (en) 1992-12-30 1993-10-20 Internal vibrator fed by a transformer

Country Status (5)

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US (1) US6084327A (en)
EP (1) EP0604723B1 (en)
JP (1) JP2558059B2 (en)
DE (1) DE9217854U1 (en)
ES (1) ES2086851T3 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998021429A1 (en) * 1996-11-11 1998-05-22 Otto Heinzle Device for compacting concrete in a form
EP0916785A1 (en) 1997-11-11 1999-05-19 BOMAG GmbH Vibrator for compacting concrete
EP0964116A1 (en) 1998-06-09 1999-12-15 S.I.M.E. S.p.A. Immersion vibrator powered by a transformer
WO2000056999A1 (en) 1999-03-24 2000-09-28 Wacker-Werke Gmbh & Co. Kg Poker vibrator with frequency converter
EP1316655A1 (en) 2001-11-28 2003-06-04 Industrias Techno-Flex, S.A. Vibrating device for concrete compacting
EP1464776A3 (en) * 2003-04-02 2004-12-01 Industrias Techno-Flex, S.A. Vibrating device for compacting concrete
CN102383607A (en) * 2011-09-16 2012-03-21 郑州轻工业学院 Plug-in type frequency conversion vibrating spear for concrete

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DE19913077C2 (en) * 1999-03-23 2003-06-12 Wacker Construction Equipment Internal vibrator with measuring system
DE19916378C2 (en) * 1999-04-12 2003-08-21 Wacker Construction Equipment Internal vibrating device with variable vibration amplitude
DE10003064C2 (en) * 2000-01-25 2002-06-27 Wacker Werke Kg Tool with an electrical consumer and a protective device
DE10033137A1 (en) * 2000-07-07 2002-01-31 Wacker Werke Kg Frequency converter for an internal vibrator
DE10101277B4 (en) 2001-01-12 2006-11-02 Wacker Construction Equipment Ag High-frequency internal vibrator with cooled electronic frequency converter
DE10124145C1 (en) * 2001-05-17 2002-08-14 Wacker Werke Kg Internal vibrator for compacting concrete
TWM295851U (en) * 2006-01-27 2006-08-11 Huan-Yao Peng Induction motor
JP5207486B2 (en) * 2009-10-07 2013-06-12 エクセン株式会社 Concrete vibrator
DE102010032351A1 (en) 2010-07-27 2012-02-02 Wacker Neuson Produktion GmbH & Co. KG Hand-guided implement with operator recognition device
EP3054064A1 (en) 2015-02-04 2016-08-10 Wacker Neuson Produktion GmbH & Co. KG Internal vibration device with a vibration body that is protected by an elastic element
CN106836819A (en) * 2017-03-13 2017-06-13 钟浪雅 It is a kind of can regularly vibrate and the depth that can voluntarily determine to vibrate vibrator
DE102018118555A1 (en) * 2018-07-31 2020-02-06 Wacker Neuson Produktion GmbH & Co. KG Portable drive system for an implement
DE102018118558A1 (en) 2018-07-31 2020-02-06 Wacker Neuson Produktion GmbH & Co. KG Carrier with an energy system
DE102018118563A1 (en) * 2018-07-31 2020-02-06 Wacker Neuson Produktion GmbH & Co. KG Internal vibrator with DC voltage supply
CN112647382B (en) * 2021-01-18 2022-08-02 中铁八局集团有限公司 Inverted V-shaped farm unit terrace and construction method thereof

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998021429A1 (en) * 1996-11-11 1998-05-22 Otto Heinzle Device for compacting concrete in a form
EP0916785A1 (en) 1997-11-11 1999-05-19 BOMAG GmbH Vibrator for compacting concrete
EP0964116A1 (en) 1998-06-09 1999-12-15 S.I.M.E. S.p.A. Immersion vibrator powered by a transformer
DE19964444B4 (en) * 1999-03-24 2008-06-26 Wacker Construction Equipment Ag Internal vibrator with frequency converter
WO2000056999A1 (en) 1999-03-24 2000-09-28 Wacker-Werke Gmbh & Co. Kg Poker vibrator with frequency converter
DE19913305A1 (en) * 1999-03-24 2000-10-12 Wacker Werke Kg Internal vibrator with frequency converter
DE19913305C2 (en) * 1999-03-24 2003-01-02 Wacker Werke Kg Internal vibrator with frequency converter
US6619832B1 (en) 1999-03-24 2003-09-16 Wacker Construction Equipment Ag Poker vibrator with frequency converter
US6733169B2 (en) * 1999-03-24 2004-05-11 Wacker Construction Equipment Ag Poker vibrator with frequency transformer
EP1316655A1 (en) 2001-11-28 2003-06-04 Industrias Techno-Flex, S.A. Vibrating device for concrete compacting
EP1464776A3 (en) * 2003-04-02 2004-12-01 Industrias Techno-Flex, S.A. Vibrating device for compacting concrete
CN102383607A (en) * 2011-09-16 2012-03-21 郑州轻工业学院 Plug-in type frequency conversion vibrating spear for concrete
CN102383607B (en) * 2011-09-16 2013-09-18 郑州轻工业学院 Plug-in type frequency conversion vibrating spear for concrete

Also Published As

Publication number Publication date
DE9217854U1 (en) 1993-03-04
US6084327A (en) 2000-07-04
JPH06220994A (en) 1994-08-09
ES2086851T3 (en) 1996-07-01
JP2558059B2 (en) 1996-11-27
EP0604723B1 (en) 1996-03-27

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