EP1299605A2 - Convertisseur de frequences pour pervibrateur - Google Patents

Convertisseur de frequences pour pervibrateur

Info

Publication number
EP1299605A2
EP1299605A2 EP01945340A EP01945340A EP1299605A2 EP 1299605 A2 EP1299605 A2 EP 1299605A2 EP 01945340 A EP01945340 A EP 01945340A EP 01945340 A EP01945340 A EP 01945340A EP 1299605 A2 EP1299605 A2 EP 1299605A2
Authority
EP
European Patent Office
Prior art keywords
converter
frequency converter
housing
socket
voltage
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
EP01945340A
Other languages
German (de)
English (en)
Other versions
EP1299605B1 (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 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 EP1299605A2 publication Critical patent/EP1299605A2/fr
Application granted granted Critical
Publication of EP1299605B1 publication Critical patent/EP1299605B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 a frequency converter for an internal vibrator.
  • Internal vibrators are used to compact concrete that is still liquid.
  • a vibrating bottle belonging to the internal vibrator is immersed in which an electric motor and an imbalance driven by it at high speed are accommodated.
  • the engine To achieve the required engine speed and thus the compression frequency, the engine must be supplied with a special voltage whose frequency (eg 200 Hz) is above the network frequency provided by the public network.
  • the special voltage is provided by a special voltage network or by a frequency converter, which is provided either on the construction site in the form of a larger stationary unit or as an integrated component of the internal vibrator.
  • An internal vibrator with an integrated frequency converter is known from DE G 92 17 854.5.
  • CH 689598 A5 which forms the preamble of claim 1, describes an internal vibrator in which a converter can be separated from a protective tube carrying a vibrating bottle.
  • the protective hose is coupled to the converter via a specially designed electromechanical plug and socket construction, so that not only the special voltage can be transmitted, but a mechanically firm connection between the protective hose and the converter housing is guaranteed.
  • the special design of the electromechanical coupling means that the elements to be coupled must be precisely coordinated. It is not possible to use components that are not equipped for the special coupling.
  • the invention is based on the object of specifying a frequency converter which also makes it possible for internal vibrators without their own integrated frequency converter to use the advantages of internal vibrators with their own frequency converter on request.
  • a frequency converter according to the invention has a mobile converter housing with a converter circuit and is characterized in that a socket is provided which is supplied with the special voltage by the converter circuit and to which a plug part of the internal vibrator can be inserted.
  • a known internal vibrator which does not have its own frequency converter, with its mains plug serving as a plug part into the socket of the frequency converter, the socket being integrated in the converter housing or connected to the converter housing via a further supply line.
  • An internal vibrator without its own frequency converter can be converted into an internal vibrator with a frequency converter without incurring any special additional costs and without having to carry out any special construction work.
  • An advantageous embodiment of the invention is characterized in that the socket can be supplied with mains voltage as an alternative to the special voltage and that a changeover switch is provided for switching over between special and mains voltage.
  • the internal vibrator can also be connected to a special voltage network - as before - without the frequency converter having to be removed from it. This has the advantage that the frequency converter cannot be lost during busy construction site operation.
  • a securing device is provided in the region of the socket, with which the plug part of the internal vibrator is held in the socket. The safety device thus serves as train protection and enables the operator to pull the frequency converter on the internal vibrator behind him.
  • the converter housing advantageously has an elongated outer shape with minimized transverse dimensions, which considerably facilitates the ability of the converter housing to slip on the construction site, which is usually provided with numerous reinforcing bars.
  • the smooth handling of the frequency converter is further improved by a smooth outer skin of the converter housing.
  • An internal vibrator 1 known per se has a vibrating bottle 2 in which an elongated electric motor and an imbalance driven by the electric motor are accommodated.
  • the vibrating bottle 2 is connected to a switch housing 4 via a protective hose 3 of up to several meters in length.
  • the protective hose 3 also serves as an operating hose with which the vibrating bottle 2 is dipped into the concrete to be compacted by the operator.
  • a switch 5 is arranged in the switch housing 4, with which the electric motor in the vibrating bottle 2 can be switched on and off.
  • An electrical feed line 6 is led out of the switch housing 4, which leads into a mains plug 7.
  • Such an internal vibrator 1, known per se is usually connected with the mains plug 7 into a special voltage network or a stationary frequency converter available at the construction site.
  • a frequency converter 8 is provided, into which the power plug 7 is inserted.
  • the frequency converter 8 has a converter housing 9, in which an electronic converter circuit known per se is accommodated. Furthermore, an additional switch can be provided with which the current supply drove can be interrupted.
  • a feed line 10 is led from the converter housing 9 to a mains plug 11.
  • the power plug 11 can be plugged into a common public network available on the construction site.
  • a plug socket 12 is integrated in the converter housing 9, into which the mains plug 7 of the internal vibrator 1 can be inserted.
  • the frequency converter 8 draws the usual mains voltage (230 V or 400 V, 50 Hz) via the mains plug 11, which is led via the feed line 10 to the converter circuit in the converter housing 9. There the mains voltage is converted to a special voltage, which, for. B. can be 42 V with 200 Hz. The special voltage is applied to the socket 12, where it can reach the internal vibrator 1 via the mains plug 7.
  • the socket 12 it is also possible to arrange the socket 12 away from the converter housing 9 and to connect it to the converter housing 9 by means of an additional supply line.
  • the power plug 7 of the vibrator 1 is held in the socket 12 with the aid of a preferred mechanical securing device. It is thus possible for the operator to pull the vibrator 1 together with the frequency converter 8 on the protective tube 3 behind them, without the connection between the mains plug 7 and the frequency converter 8 being released.
  • the converter housing 9 has an elongated, slim outer shape with minimized transverse dimensions and a smooth outer skin in order to be able to be pulled through concrete reinforcements with as little resistance as possible. Inclined end walls 13 on the converter housing 9 further support the ability to slip.
  • the frequency converter 8 is particularly easy easy to handle on the go. Manageability is further supported if the converter housing 9 does not carry a handle that could impair the ability to slip.
  • the frequency converter 8 forms a compact unit together with the internal vibrator 1 and can be easily moved by the operator, conventional internal vibrators without an integrated frequency converter also have the operating advantages that were previously only reserved for internal vibrators with an integrated frequency converter.
  • Another embodiment of the invention enables the socket 12 to be supplied not only with the special voltage, but also optionally with the mains voltage.
  • a switch for switching between special and mains voltage is provided on the converter housing 9. While the current for generating the special voltage is passed through the converter circuit, after the switch is actuated, it is fed directly from the feed line 10 to the socket 12, that is to say only through the frequency converter 8. This makes it possible to connect the combination of internal vibrator 1 and frequency converter 8 to existing special voltage networks at least briefly, without having to separate internal vibrator 1 from frequency converter 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Dc-Dc Converters (AREA)

Abstract

Convertisseur de fréquences (8) destiné à un pervibrateur (1), comprenant un boîtier mobile (9), un circuit convertisseur disposé dans le boîtier (9) pour la conversion d'une tension de ligne en une tension particulière, ainsi qu'une ligne d'amenée (10) reliée mécaniquement au boîtier (9) et connectée électriquement audit circuit, et présentant un élément d'enfichage (11) à son extrémité opposée au boîtier (9) du convertisseur. Une fiche femelle (12) est alimentée par la tension particulière en provenance du circuit convertisseur, une prise au secteur (7) du pervibrateur étant enfichable sur ladite fiche femelle (12).
EP01945340A 2000-07-07 2001-07-05 Convertisseur de frequences pour pervibrateur Expired - Lifetime EP1299605B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10033137A DE10033137A1 (de) 2000-07-07 2000-07-07 Frequenzumformer für einen Innenrüttler
DE10033137 2000-07-07
PCT/EP2001/007721 WO2002004764A2 (fr) 2000-07-07 2001-07-05 Convertisseur de frequences pour pervibrateur

Publications (2)

Publication Number Publication Date
EP1299605A2 true EP1299605A2 (fr) 2003-04-09
EP1299605B1 EP1299605B1 (fr) 2007-09-05

Family

ID=7648183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01945340A Expired - Lifetime EP1299605B1 (fr) 2000-07-07 2001-07-05 Convertisseur de frequences pour pervibrateur

Country Status (6)

Country Link
US (2) US7498691B2 (fr)
EP (1) EP1299605B1 (fr)
JP (1) JP2004502887A (fr)
DE (2) DE10033137A1 (fr)
ES (1) ES2290147T3 (fr)
WO (1) WO2002004764A2 (fr)

Families Citing this family (6)

* 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
DE10033137A1 (de) * 2000-07-07 2002-01-31 Wacker Werke Kg Frequenzumformer für einen Innenrüttler
DE10101277B4 (de) * 2001-01-12 2006-11-02 Wacker Construction Equipment Ag Hochfrequenz-Innenrüttler mit gekühltem elektronischen Frequenzumformer
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.
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 (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427111A (en) * 1942-04-14 1947-09-09 Remington Rand Inc Converter
US3410528A (en) * 1966-10-17 1968-11-12 Koehring Co Concrete vibrator
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
US5019767A (en) * 1989-02-16 1991-05-28 Nintendo Co., Ltd. Portable power supply
DE9217854U1 (de) * 1992-12-30 1993-03-04 Wacker-Werke Gmbh & Co Kg, 8077 Reichertshofen Von einem Umformer gespeister Innenrüttler
US5612580A (en) * 1995-10-10 1997-03-18 Northrop Grumman Corporation Uninterruptible power system
DE19722107C1 (de) * 1997-05-27 1998-10-01 Wacker Werke Kg Kabeltrommel mit integriertem Frequenzumformer
CH689598A5 (de) * 1998-06-09 1999-06-30 Msz Motoren Service Ag Zuerich Von einem Umformer gespeister Innenrüttler
DE10033137A1 (de) * 2000-07-07 2002-01-31 Wacker Werke Kg Frequenzumformer für einen Innenrüttler

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0204764A2 *

Also Published As

Publication number Publication date
JP2004502887A (ja) 2004-01-29
ES2290147T3 (es) 2008-02-16
EP1299605B1 (fr) 2007-09-05
US7498691B2 (en) 2009-03-03
US7385315B2 (en) 2008-06-10
DE10033137A1 (de) 2002-01-31
WO2002004764A3 (fr) 2002-06-20
WO2002004764A2 (fr) 2002-01-17
US20060158038A1 (en) 2006-07-20
US20030012041A1 (en) 2003-01-16
DE50112968D1 (de) 2007-10-18

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