EP1163409A1 - Pervibrateur dote d'un convertisseur de frequence - Google Patents

Pervibrateur dote d'un convertisseur de frequence

Info

Publication number
EP1163409A1
EP1163409A1 EP00912496A EP00912496A EP1163409A1 EP 1163409 A1 EP1163409 A1 EP 1163409A1 EP 00912496 A EP00912496 A EP 00912496A EP 00912496 A EP00912496 A EP 00912496A EP 1163409 A1 EP1163409 A1 EP 1163409A1
Authority
EP
European Patent Office
Prior art keywords
housing
switch
frequency converter
internal vibrator
electric motor
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
EP00912496A
Other languages
German (de)
English (en)
Other versions
EP1163409B1 (fr
Inventor
Michael Steffen
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 Werke GmbH and Co KG
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 Werke GmbH and Co KG, Wacker Construction Equipment AG filed Critical Wacker Werke GmbH and Co KG
Publication of EP1163409A1 publication Critical patent/EP1163409A1/fr
Application granted granted Critical
Publication of EP1163409B1 publication Critical patent/EP1163409B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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.
  • Internal vibrators of this type are used to compact fresh concrete, a vibrating body or housing being attached to a protective hose, in which an unbalance is driven in rotation by an electric motor.
  • the motor To generate a compression frequency suitable for fresh concrete, the motor must rotate at a very high speed, for example 12,000 min, which requires an electrical frequency that is higher than the usual mains frequency.
  • a frequency converter is connected upstream of the electric motor, which increases the mains frequency from 50 Hertz to 200 Hertz, for example.
  • the switch housing had to be enlarged somewhat, which can be disadvantageous for its slippage and off-road capability on the construction site.
  • the somewhat enlarged switch housing gets caught on concrete reinforcements.
  • the switch housing with the integrated frequency converter has a not insignificant weight, so that the constant pulling of the switch housing it can be difficult at work.
  • the invention is based on the object of specifying an internal vibrator which is even easier to handle in practice and in which in particular the ability to slip is improved and the weight to be moved by the operator is reduced.
  • An internal vibrator according to the invention is characterized in that at least some of the components of the frequency converter are arranged in the vibrating housing, the plug housing or the protective hose. Essentially four embodiments are covered:
  • the components of the frequency converter are installed at various locations on the internal vibrator.
  • the frequency converter is no longer integrated into the switch housing, which has the advantage that, due to its low weight and small dimensions, it is again very light and "slippery", ie capable of slipping.
  • the switch housing can be easily pulled behind when working on the operating hose.
  • the arrangement of components of the frequency converter at certain points in the internal vibrator offers the possibility of installing the components in a targeted manner where they can be accommodated particularly expediently. It is particularly advantageous if a power unit that generates a lot of heat during operation is accommodated in the vibrating housing which is immersed in the concrete slurry, because this enables particularly effective cooling.
  • the switch is arranged in its own switch housing.
  • the switch can also be integrated in the connector housing, in the protective tube or in the vibrating housing.
  • the independent claim 11 defines an embodiment in which the frequency converter and the switch are also housed in different housings, namely here in a coupling piece and in a switch housing. This also enables an optimization of the weight distribution on the internal vibrator and a shape for better off-road mobility. This can go so far that the switch is integrated into the connector housing, while the frequency converter is arranged in the coupling piece between the protective hose and the electrical cable.
  • Another variant of the invention is defined in independent claim 13, according to which at least some of the components of the frequency converter are arranged in a converter housing provided between the switch housing and the power plug. This also allows the weight distribution and external shape of the internal vibrator to be optimized.
  • An electric motor (not shown) is housed in a vibrating housing 1, also referred to as a vibrating bottle, which drives an imbalance serving as a vibration generator in a rotating manner at high speed.
  • a vibrating housing 1 which is to be immersed in the still liquid concrete is set into vibrations, as a result of which the desired compacting effect in the concrete can be achieved.
  • the vibrator housing 1 is attached on one side to a protective tube 2, which can be up to several meters (for example 6 meters) and is held in operation by the operator. Therefore, the protective tube 2 also serves as an operating tube.
  • a switch housing 3 which is also referred to as a switchgear and is used here as a coupling piece, is mounted, which carries a switch 4.
  • electrical leads 5 to the electric motor in the vibrating housing 1 can be interrupted or closed in a known manner.
  • the electrical supply lines 5 run inside the protective tube 2.
  • a rubber grommet 6 extends from the other side of the switch housing 3, inside which an electrical cable 7 runs, which finally ends at a switch housing 9 carrying a plug 8.
  • the function of the coupling piece (here: switch housing 3) is to couple the stable protective hose 2 to the electrical cable 7.
  • the electric motor must rotate at a very high speed and therefore requires an electrical frequency which is above the mains frequency for its operation.
  • Frequencies in the range of 200 Hertz are usual, which corresponds to four times the mains frequency.
  • all components of the electronic hybrid frequency converter are mers integrated in the vibrator housing 1 and attached directly to the electric motor.
  • the mains current is fed to the vibrating housing 1 via the plug 8, the electrical cable 7, the switch 4 and the electrical feed lines 5.
  • the electrical cable 7 and the electrical supply lines 5 form an electrical supply between the connector 8 and the electric motor.
  • This embodiment has the advantage that the switch housing 3 takes on a very small, handy and slip-resistant shape, so that the operator can easily move it past the reinforcements during operation of the internal vibrator. Furthermore, the heat sink volume of the electronic frequency converter can be considerably reduced, since the vibrating housing 1, which is made of metal, dissipates heat from the frequency converter and passes it on to the concrete slurry, which ensures very efficient cooling. Furthermore, the protective tube 2 no longer has to be shielded, since it only supplies mains current. Finally, the winding temperature of the motor can be detected by means of a temperature sensor and read back as an operating variable. If a corresponding control is provided, the frequency converter can be controlled depending on the temperature.
  • the frequency converter is completely integrated into the connector housing 9 carrying the connector 8.
  • This variant requires an enlargement of the connector housing 9 compared to conventional connector housings, which, however, does not lead to disadvantages for the operation of the internal vibrator, since the connector 8 is usually inserted into a stationary cable drum or socket. Therefore, the operator rarely has to lift and move the connector housing 9 with the integrated frequency converter while the internal vibrator is operating.
  • the vibrator housing 1 and the switch housing 3 are not changed. Since the increased frequency is now available from the connector housing 9, the electrical cable 7 and the electrical supply lines 5 in the protective tube 2 must be shielded. Since the frequency converter in the connector housing 9 is essentially cooled by air, this embodiment is advantageously suitable for small internal vibrators with low power consumption.
  • the integration of the frequency converter in the connector housing 9 - for example by integration with a residual current circuit breaker (FI-DI switch) - enables a particularly high level of operating safety.
  • FI-DI switch residual current circuit breaker
  • the components of the frequency converter are distributed according to their best suitability in the internal vibrator if the frequency converter consists of several components.
  • a power unit and a processor of the frequency converter are installed in the vibrator housing 1, where optimal cooling by the concrete slurry and the vibrator housing 1 serving as a heat sink is possible.
  • a rectifier and a switching power supply of the frequency converter are integrated in the connector housing 9.
  • Capacitors that may be required, in particular direct current intermediate circuit capacitors, can be integrated into the protective hose 2 of the internal vibrator.
  • a construction of this type enables a minimal construction volume and thus also a minimal weight of the internal vibrator.
  • the switch housing 3, which still only carries the switch 4, remains small and all-terrain. Due to the cooling effect of the vibrating bottle 1, additional cooling body volumes can be dispensed with. Due to the generation of the higher frequency in the vibrating housing 1 itself, the protective tube 2 and the electrical cable 7 do not have to be shielded.
  • a fourth embodiment of the invention is characterized in that the frequency converter is arranged in the coupling piece coupling the protective tube and the electrical cable, but the switch housing receiving the switch is arranged separately from the coupling piece.
  • This variant enables numerous design variants to optimize weight distribution and off-road capability.
  • the fourth embodiment is further developed such that the switch housing is integrated in the connector housing 9.
  • a sixth embodiment is characterized in that at least some of the components of the frequency converter are arranged in a converter housing provided between the switch housing and the power plug. This also spatially separates the frequency converter and the switch housing in order to maintain the advantageous design options.
  • the variants described are also suitable for internal vibrators with a short protective hose, for example stick or hand-held vibrators.
  • the operation is not carried out via the protective tube, but by means of a handle which is combined, for example, with the switch housing 3.

Landscapes

  • 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

Pervibrateur destiné à compacter du béton, qui est doté d'un boîtier vibrant (1) contenant une masse non équilibrée et un moteur électrique, d'un tuyau de protection (2) reliant le boîtier vibrant (1) à un boîtier (3) de commutateur, d'un câble électrique (7) reliant le boîtier (3) de commutateur à un boîtier de connexion (9) et d'un convertisseur de fréquence alimentant le moteur électrique. Ledit pervibrateur est caractérisé en ce qu'au moins une partie des éléments constituant le convertisseur de fréquence est placée dans le boîtier vibrant (1), le tuyau de protection (2) ou le boîtier de connexion (9).
EP00912496A 1999-03-24 2000-02-22 Pervibrateur dote d'un convertisseur de frequence Expired - Lifetime EP1163409B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19913305A DE19913305C2 (de) 1999-03-24 1999-03-24 Innenrüttler mit Frequenzumformer
DE19913305 1999-03-24
PCT/EP2000/001429 WO2000056999A1 (fr) 1999-03-24 2000-02-22 Pervibrateur dote d'un convertisseur de frequence

Publications (2)

Publication Number Publication Date
EP1163409A1 true EP1163409A1 (fr) 2001-12-19
EP1163409B1 EP1163409B1 (fr) 2006-10-25

Family

ID=7902222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00912496A Expired - Lifetime EP1163409B1 (fr) 1999-03-24 2000-02-22 Pervibrateur dote d'un convertisseur de frequence

Country Status (5)

Country Link
US (2) US6619832B1 (fr)
EP (1) EP1163409B1 (fr)
JP (1) JP2002540322A (fr)
DE (3) DE19964444B4 (fr)
WO (1) WO2000056999A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2466035A1 (fr) 2010-12-15 2012-06-20 Industrias Technoflex SA Appareil de vibration pour le compactage de béton

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19913077C2 (de) * 1999-03-23 2003-06-12 Wacker Construction Equipment Innenrüttler mit Meßsystem
DE19964444B4 (de) * 1999-03-24 2008-06-26 Wacker Construction Equipment Ag Innenrüttler mit Frequenzumformer
ES2163978B1 (es) * 1999-06-14 2003-08-16 Ind Techno Flex S A Dispositivo vibrador para compactar hormigon.
DE10101277B4 (de) * 2001-01-12 2006-11-02 Wacker Construction Equipment Ag Hochfrequenz-Innenrüttler mit gekühltem elektronischen Frequenzumformer
DE10124145C1 (de) * 2001-05-17 2002-08-14 Wacker Werke Kg Innenrüttler zum Verdichten von Beton
EP1316655A1 (fr) * 2001-11-28 2003-06-04 Industrias Techno-Flex, S.A. Dispositif de vibration pour compacter le beton
ES2243124B1 (es) * 2003-12-30 2006-07-16 Hervisa, S.A. Vibrador para el compactado de hormigon.
US8092071B1 (en) 2008-02-08 2012-01-10 Robert Allan Baker External vibratory grout consolidator for vertically reinforced concrete masonry
US10696502B2 (en) * 2017-05-09 2020-06-30 William E HODGE Method and apparatus to reduce volume occupied by dry particulate commodities during transportation or storage
DE102018118555A1 (de) 2018-07-31 2020-02-06 Wacker Neuson Produktion GmbH & Co. KG Tragbares Antriebssystem für ein Arbeitsgerät
DE102018118563A1 (de) * 2018-07-31 2020-02-06 Wacker Neuson Produktion GmbH & Co. KG Innenrüttler mit Gleichspannungsversorgung
CN110242052A (zh) * 2019-05-30 2019-09-17 诸暨市辉煌五金有限公司 分体式混凝土振动装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2808238A (en) * 1955-08-09 1957-10-01 Master Vibrator Co Concrete vibrator
US2966804A (en) * 1959-03-05 1961-01-03 Pacific Mercury Electronics In Mechanical vibrator for use with fluids and semi-fluids
US3061278A (en) * 1959-05-25 1962-10-30 Dreyer Herbert Vibrator tool
DE1936231U (de) * 1965-12-06 1966-04-07 Anton Poettgens Betonruettelflasche.
US3410528A (en) * 1966-10-17 1968-11-12 Koehring Co Concrete vibrator
US3583677A (en) * 1969-08-28 1971-06-08 Electro Sonic Oil Tools Inc Electro-mechanical transducer for secondary oil recovery
DE2114899B2 (de) * 1971-03-27 1973-07-05 Von hand zu fuehrender innenruettler zum verdichten von beton
JPH0833079B2 (ja) * 1988-01-29 1996-03-29 三笠産業株式会社 コンクリートバイブレータ
US5202612A (en) * 1988-01-29 1993-04-13 Sinano Electric Co., Ltd. Concrete vibrator
DE9217854U1 (fr) * 1992-12-30 1993-03-04 Wacker-Werke Gmbh & Co Kg, 8077 Reichertshofen, De
US5725304A (en) * 1995-12-13 1998-03-10 Makita Corporation Battery concrete vibrator
US6109111A (en) * 1997-02-14 2000-08-29 Racine Federated Inc. Concrete vibrator monitor
EP0916785A1 (fr) * 1997-11-11 1999-05-19 BOMAG GmbH Vibreur pour compacter du béton
DE19964444B4 (de) * 1999-03-24 2008-06-26 Wacker Construction Equipment Ag Innenrüttler mit Frequenzumformer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0056999A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2466035A1 (fr) 2010-12-15 2012-06-20 Industrias Technoflex SA Appareil de vibration pour le compactage de béton

Also Published As

Publication number Publication date
US20030198123A1 (en) 2003-10-23
US6733169B2 (en) 2004-05-11
JP2002540322A (ja) 2002-11-26
EP1163409B1 (fr) 2006-10-25
DE19913305A1 (de) 2000-10-12
DE19964444B4 (de) 2008-06-26
DE19913305C2 (de) 2003-01-02
DE50013664D1 (de) 2006-12-07
US6619832B1 (en) 2003-09-16
WO2000056999A1 (fr) 2000-09-28

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