EP1163409B1 - Innenrüttler mit frequenzumformer - Google Patents

Innenrüttler mit frequenzumformer Download PDF

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Publication number
EP1163409B1
EP1163409B1 EP00912496A EP00912496A EP1163409B1 EP 1163409 B1 EP1163409 B1 EP 1163409B1 EP 00912496 A EP00912496 A EP 00912496A EP 00912496 A EP00912496 A EP 00912496A EP 1163409 B1 EP1163409 B1 EP 1163409B1
Authority
EP
European Patent Office
Prior art keywords
housing
frequency converter
vibrator
switch
plug
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
EP00912496A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1163409A1 (de
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 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 EP1163409A1 publication Critical patent/EP1163409A1/de
Application granted granted Critical
Publication of EP1163409B1 publication Critical patent/EP1163409B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • 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 internal vibrators according to the preambles of claims 1 and 10.
  • Such internal vibrators are used for compacting fresh concrete, wherein a shaker body or housing is attached to a protective tube, in which an imbalance is rotationally driven by an electric motor.
  • an electric motor In order to generate a form suitable for the fresh concrete compaction frequency of the motor at a very high speed must, for example, 12,000 min -1, turning, which requires over the usual mains frequency increased electrical frequency.
  • To provide the increased electrical frequency of the electric motor is preceded by a frequency converter, which increases the mains frequency of 50 hertz, for example, to 200 hertz.
  • the switch housing has to be slightly enlarged, which can be detrimental to its hatchability and off-road capability on the site.
  • the slightly enlarged switch housing will get stuck to concrete reinforcements.
  • the switch housing with the integrated frequency converter a considerable weight, so that the constant pulling back of the switch housing at work can be cumbersome.
  • US Pat. No. 5,202,612 discloses an internal vibrator in which an electric motor arranged in a vibrator housing is supplied with current of an electrical frequency which differs from a mains frequency via an electrical supply.
  • the electric supply cable forming on the one hand a switch and on the other hand provided a separately arranged from the switch frequency converter.
  • GB-A-2 279 184 a mains plug is described in which a switch for interrupting the power supply is integrated.
  • Post-published EP-A-0 916 785 (Art. 54 (3) EPC) describes a concrete compacting vibrator in which a frequency converter is housed in a housing. Three-phase sockets are mounted on the housing, to which an electrical connection line to a vibrating bottle can be connected.
  • the invention has for its object to provide an internal vibrator, which is even easier to handle in practice and in particular improves the hatchability and the weight to be moved by the operator is reduced.
  • the arrangement of components of the frequency converter at certain points in the internal vibrator offers the possibility to install the components targeted where they can be accommodated particularly appropriate. So it is particularly very advantageous if a power generating a lot of heat generating power unit is housed in the immersed in the concrete vapors Haittelgephaseuse, because thereby a particularly effective cooling is possible.
  • the switch is arranged in a separate switch housing.
  • the switch can also be integrated in the plug housing, in the protective tube or in the vibrator housing.
  • the independent claim 10 defines an embodiment in which at least a part of the components of the frequency converter is arranged in the protective tube and this part of the components is not integrated in the switch housing. This makes it possible with a z. B. from EP 0 604 723 known internal vibrators to remove at least a portion of the components of the frequency converter from the switch housing described therein and to arrange elsewhere in the protective tube. As a result, the switch housing can be streamlined, whereby the slippability of the internal vibrator is improved.
  • FIGURE shows an internal vibrator according to the invention in perspective view.
  • a vibrating housing 1 also referred to as a vibrating bottle
  • an electric motor not shown, is housed, which rotatably drives an imbalance serving as a vibration generating device at high speed.
  • the vibrating housing 1 to be immersed in the still liquid concrete is set in vibration, whereby the desired compaction effect can be achieved in the concrete.
  • 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 a service hose.
  • a switch housing 3 which is also referred to as a switchboard and serves here as a coupling piece, is mounted, which carries a switch 4.
  • electrical leads 5 can be interrupted or closed in a known manner to the electric motor in the vibrator housing 1.
  • the electrical leads 5 extend inside the protective tube. 2
  • switch housing 3 From the other side of the switch housing 3, a rubber grommet 6, inside which an electric cable 7 extends, which finally ends at a switch housing 9 carrying a plug 8 extends.
  • the function of the coupling piece (here: switch housing 3) is to couple the stable protective tube 2 with the electric 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.
  • Common frequencies are in the range of 200 hertz, which is four times the mains frequency.
  • This embodiment has the advantage that the switch housing 3 occupies a very small, handy and slip-capable form, so that it can be easily passed by the operator during operation of the internal vibrator to the reinforcements. Furthermore, the heat sink volume of the electronic frequency converter can be significantly reduced because the existing metal vibrator housing 1 dissipates heat from the frequency converter and passes on to the concrete vat, which ensures a very efficient cooling. Furthermore, the protective tube 2 no longer needs to be shielded because it only supplies mains power. Finally, the winding temperature of the motor can be detected by means of a temperature sensor and read back as an operating variable. Upon provision of a corresponding control, the frequency converter can be controlled as a function of the temperature.
  • the frequency converter is completely integrated into the connector housing 9 carrying the plug 8.
  • This variant requires an enlargement of the plug housing 9 compared to conventional plug housings, but this does not lead to disadvantages for the operation of the internal vibrator, since the plug 8 is usually inserted into a stationary cable drum or socket. Therefore, during operation of the internal vibrator, the operator rarely has to raise and move the plug housing 9 with the integrated frequency converter.
  • the vibrator housing 1 and the switch housing 3 are not changed. Since now the increased frequency is already available from the connector housing 9, the electric cable 7 and the electrical leads 5 in the protective tube 2 are shielded. Since the cooling of the frequency converter takes place in the connector housing 9 substantially by air, this embodiment is advantageously suitable for small internal vibrators with low power consumption.
  • the vibrator housing 1 with the electric motor, the frequency converter, the protective tube 2 and the electric cable 7 by a suitable electronics on the frequency converter to short circuit. Earth fault and fault current to monitor and protect it. In case of damage to the protective hose 2 with the leads 5 or the electric cable 7, the power supply for the internal vibrator interrupts immediately.
  • the components of the frequency converter are distributed according to their best suitability in the internal vibrator, when the frequency converter consists of several components.
  • a power unit and a processor of the frequency converter are installed in the Rüttelgephaseuse 1, where optimum cooling by the Betonschlempe and serving as a heat sink Studttelgephaseuse 1 is possible.
  • a rectifier and a switching power supply of the frequency converter are integrated into the connector housing 9. Any required capacitors, in particular DC intermediate circuit capacitors can be integrated into the protective tube 2 of the internal vibrator.
  • a non-illustrated fourth embodiment of the invention is characterized in that the frequency converter is indeed arranged in the protective tube and the electric cable coupling coupling piece, however, the switch housing receiving switch housing is arranged separately from the coupling piece.
  • This variant allows numerous design variants to optimize weight distribution and off-road capability.
  • the fourth embodiment is developed such that the switch housing is integrated into the connector housing 9.
  • a likewise not shown in the figure sixth embodiment is characterized in that at least a part of the components of the frequency converter is arranged in a provided between the switch housing and the power plug converter housing. Also, the frequency converter and the switch housing are spatially separated from each other to obtain the advantageous design options.
  • the described variants are also suitable for internal vibrators with a short protective tube, for example rod or hand-held vibrators.
  • a short protective tube for example rod or hand-held vibrators.
  • the operation is not via the protective tube, but by means of a handle, which is summarized, for example, with the switch housing 3.
  • the switch is integrated into the protective tube. Also can be dispensed with attached to the end of the protective tube 2 coupling piece, if there is not a switch or a frequency converter must be accommodated. Instead, the end of the protective tube 2 may leak in a rubber grommet 6 similar spout and open into the electric cable 7. It is also possible to vulcanize the end of the protective tube 2 such that it passes into the electric cable 7. With simultaneous integration of the switch and the frequency converter in the plug housing 9, the protective tube 2 or the vibrator housing 1, an internal vibrator is provided with smooth outer contours without bulges, which accordingly has an excellent hatchability.

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)
EP00912496A 1999-03-24 2000-02-22 Innenrüttler mit frequenzumformer Expired - Lifetime EP1163409B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19913305 1999-03-24
DE19913305A DE19913305C2 (de) 1999-03-24 1999-03-24 Innenrüttler mit Frequenzumformer
PCT/EP2000/001429 WO2000056999A1 (de) 1999-03-24 2000-02-22 Innenrüttler mit frequenzumformer

Publications (2)

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

Family

ID=7902222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00912496A Expired - Lifetime EP1163409B1 (de) 1999-03-24 2000-02-22 Innenrüttler mit frequenzumformer

Country Status (5)

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

Families Citing this family (13)

* 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 (en) * 2001-11-28 2003-06-04 Industrias Techno-Flex, S.A. Vibrating device for concrete compacting
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
ES1073625Y (es) 2010-12-15 2011-04-07 Ind Technoflex Sa Aparato vibrador para compactar hormigon
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

Family Cites Families (14)

* 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 (de) * 1992-12-30 1993-03-04 Wacker-Werke Gmbh & Co Kg, 8077 Reichertshofen Von einem Umformer gespeister Innenrüttler
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 (de) * 1997-11-11 1999-05-19 BOMAG GmbH Vibrator zur Beton-Verdichtung
DE19964444B4 (de) * 1999-03-24 2008-06-26 Wacker Construction Equipment Ag Innenrüttler mit Frequenzumformer

Also Published As

Publication number Publication date
WO2000056999A1 (de) 2000-09-28
EP1163409A1 (de) 2001-12-19
DE19913305C2 (de) 2003-01-02
US20030198123A1 (en) 2003-10-23
US6619832B1 (en) 2003-09-16
JP2002540322A (ja) 2002-11-26
DE50013664D1 (de) 2006-12-07
US6733169B2 (en) 2004-05-11
DE19913305A1 (de) 2000-10-12
DE19964444B4 (de) 2008-06-26

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