EP1387917A1 - Internal vibrator for concrete compacting - Google Patents
Internal vibrator for concrete compactingInfo
- Publication number
- EP1387917A1 EP1387917A1 EP02769475A EP02769475A EP1387917A1 EP 1387917 A1 EP1387917 A1 EP 1387917A1 EP 02769475 A EP02769475 A EP 02769475A EP 02769475 A EP02769475 A EP 02769475A EP 1387917 A1 EP1387917 A1 EP 1387917A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal
- interrupter
- vibrator
- 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
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18544—Rotary to gyratory
Definitions
- the invention relates to an internal vibrator for compacting concrete.
- FIG. 1 shows an embodiment of an internal vibrator known from DE-U-92 17 854.5, the construction and mode of operation of which are briefly explained below:
- An internal vibrator 20 has a vibrating bottle 21, a protective and operating hose 23, a built-in unit 24 integrated in the protective and operating hose 23 for receiving a converter (not shown) and an operating switch 25, a power supply line in the form of a power supply cable 26 and a power plug 27 on.
- the vibrating bottle 21 comprises a vibrating housing 21a, an electric motor (not shown in the drawing) which is built into the vibrating housing, and an unbalanced mass (not shown) which is also arranged in the vibrating housing 21a and can be rotated by the electric motor about a longitudinal axis of the vibrating bottle 21.
- the converter integrated in the installation unit 24 generates the current required to drive the electric motor with a higher frequency than the mains frequency, which is supplied to the electric motor via the power supply cable 26 integrated in the protective and operating hose 23.
- the power supply can be controlled by the operating switch 25.
- the overtemperature protection is usually implemented in the form of several bimetal switches.
- a separate bimetal switch is preferably integrated into each conductor of the power supply cable 26 in the winding head of the motor, which switches its switching state at a certain temperature and thus interrupts the power supply.
- the bimetal switches Since, due to production tolerances, the bimetal switches have slightly different temperature switching points and, moreover, inhomogeneous temperature fields can prevail within the vibrating bottle, the bimetal switches generally change their switching status at different times. However, this means that the electric motor is exposed to heavy current loads when the bimetal switch is switched off. The high current load can also quickly lead to scaling of the bimetal switches. In the worst case, the scaling can lead to a total failure of the bimetal switch and thus the internal vibrator. N eighth hg is further that when the electric motor is switched on again by the bimetal switch after a cooling phase, the electric motor is again exposed to a strong current load, since here too the bimetal switch does not switch at the exact same time. This can lead to the electric motor still being heated reaching the temperature threshold very quickly and being switched off again in a very short time by the bimetal switch.
- bimetal switches also has the disadvantage that the bimetal switches often open or close briefly due to the strong vibration generated by the electric motor and the imbalance.
- the associated current loads on the electric motor can lead to wear of the electric motor or destruction. lead to connected drive electronics.
- the electric motor, the bimetal switch and the power supply line are usually cast into a common unit using a suitable material.
- the high pressures that occur can lead to the failure of the bimetallic switches or to an undesired displacement of the respective temperature switching points due to the mechanical forces.
- the object underlying the invention is to provide an internal vibrator for compacting concrete, in which the electric motor is effectively protected against overheating.
- the internal vibrator according to the invention has a vibrating housing in which a rotatable unbalanced mass, an electric motor driving the unbalanced mass and part of a power supply line connected to the electric motor for supplying power to the electric motor are integrated. Furthermore, the internal vibrator has an interrupter interposed in the power supply line to interrupt the power supply to the electric motor.
- electrically controllable interrupters in particular triacs, are mechanically and thermally more stable than bimetal switches, since they are not subject to mechanical wear and scaling, and their function is not influenced when the components are sprayed together. This creates an internal vibrator that is optimized with regard to the manufacturing process and the costs. guaranteed for a period of time.
- the interruption signals controlling the interrupter or the interrupter subunits (hereinafter referred to as interrupter), which are generated by signal transmitters connected to the interrupter, can be divided into internal and external interruption signals.
- the internal vibrator preferably has at least one internal signal transmitter connected to the interrupter and integrated into the vibrator housing, wherein a corresponding internal interruption signal can be generated by each of the internal signal transmitters, depending on which the interrupter can be controlled.
- at least one external signal transmitter connected to the interrupter and attached outside the vibrating housing is provided, wherein a corresponding external interruption signal can be generated by each of the external signal transmitters, depending on which the interrupter can be controlled.
- an internal signal transmitter is a voltage-dependent switching element connected to the power supply line, by means of which a corresponding internal interruption signal can be generated as a function of the voltage applied to the electric motor.
- the voltage-dependent switching element is designed in such a way that it registers a failure of the current flow or the supply voltage in one of the current conductors and, in order to avoid a high current load on the electric motor (two-phase operation), the current flow in the other current conductors by generation of corresponding internal interrupt signals also interrupts.
- the voltage-dependent switching element can be designed such that it can be switched as a function of a modulated supply voltage signal. It would also be possible to design the voltage-dependent switching element in such a way that it interrupts the current flow in the event of overvoltages or regulates it to values which correspond to the nominal values of the internal vibrator.
- An integrated logic circuit is preferably provided, which is connected to the interrupter and to respective internal and / or external signal generators, the integrated logic circuit depending on a plurality of interrupt signals supplied to it and generated by the internal or external signal generators providing a common interrupt signal (or several " common "interrupt signals when using several interrupt signal subunits) can be generated, by means of which the interrupter can be controlled.
- a common interrupt signal or several " common "interrupt signals when using several interrupt signal subunits
- FIG 1 shows an embodiment of an internal vibrator according to the prior art.
- FIG. 3 shows a schematic circuit diagram to illustrate the interaction of the interrupter with the internal / external signal transmitters of an internal vibrator according to the invention in a second embodiment
- FIG. 4 shows a schematic circuit diagram of an internal vibrator according to the invention in a third embodiment of the invention.
- FIG. 5 shows a schematic circuit diagram of an internal vibrator according to the invention in a fourth embodiment
- FIG. 6 shows a schematic circuit diagram of an internal vibrator according to the invention in a fifth embodiment
- FIG. 7 shows a schematic circuit diagram of an internal vibrator according to the invention in a sixth embodiment
- FIG. 8 is a cross-sectional view of an assembly of an electric motor head in connection with the embodiment of the internal vibrator shown in FIG. 2.
- FIG. 2 shows a schematic circuit diagram 1 with an electric motor 2, a first triac 3, a second triac 4, a first current conductor 5, a second current conductor 6, a third current conductor 7, an integrated one Logic circuit 8 and a temperature sensor 9. All components located within the area identified by reference number 15 are to be regarded as integrated in the vibrating bottle 21, all components located outside the area 15 are attached to the internal vibrator outside of the vibrating bottle 21 or are provided entirely separately therefrom.
- the embodiment shown in FIG. 3 differs from the embodiment shown in FIG. 2 only by the addition of an additional first external signal generator 11, which is connected to the integrated logic circuit 8, and which supplies a corresponding interrupt signal when the first external signal generator 11 is actuated ,
- the first external signal transmitter 11 is connected to the integrated logic circuit 8 via a signal line 12 which can be implemented, for example, on the basis of a copper or glass fiber cable or a radio transmission.
- the breaker 10 can be controlled independently of the temperature sensor 9.
- the external signal transmitter 11 is preferably designed as an on and off switch of the internal vibrator.
- the embodiment shown in FIG. 4 differs from the embodiment shown in FIG. 2 by the additional use of a second external signal transmitter 13, which is implemented here in the form of a position switch.
- the second external signal transmitter 13 is connected to the integrated logic circuit 8 via a corresponding signal line 12b, in order to be able to operate at a specific spatial, eg. B. horizontal alignment of the vibrator 20 to send a corresponding interrupt signal to the internal logic circuit 8, depending on which the integrated logic circuit acts on the interrupter 10 or the first triac 3 and the second triac 4 with the common interrupt signals.
- FIG. 5 represents a combination of the embodiments shown in FIGS. 3 and 4. Both the first external signal generator 11 and the second external signal generator 13 are present.
- the interrupter 10 can thus be controlled both by the user himself by means of the first external signal transmitter 11, and also by the temperature sensor 9 and the second external signal transmitter 13, which is preferably implemented as a position switch.
- the embodiment shown in FIG. 6 differs from the embodiment shown in FIG. 4 only in that the second external signal transmitter 13 (position switch) is designed here as an internal signal transmitter, that is to say is integrated into the vibrating housing 21a.
- the second external signal transmitter 13 position switch
- the embodiment shown in FIG. 7 differs from the embodiment shown in FIG. 5 in that the second external signal transmitter 13 (position switch) is configured here as an internal signal transmitter, as in the embodiment according to FIG. 6.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10124145 | 2001-05-17 | ||
DE10124145A DE10124145C1 (en) | 2001-05-17 | 2001-05-17 | Internal vibrator for compacting concrete |
PCT/EP2002/005107 WO2002092941A1 (en) | 2001-05-17 | 2002-05-08 | Internal vibrator for concrete compacting |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1387917A1 true EP1387917A1 (en) | 2004-02-11 |
EP1387917B1 EP1387917B1 (en) | 2010-06-02 |
Family
ID=7685202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02769475A Expired - Lifetime EP1387917B1 (en) | 2001-05-17 | 2002-05-08 | Internal vibrator for concrete compacting |
Country Status (6)
Country | Link |
---|---|
US (1) | US20040144188A1 (en) |
EP (1) | EP1387917B1 (en) |
JP (1) | JP2004531384A (en) |
DE (2) | DE10124145C1 (en) |
ES (1) | ES2344685T3 (en) |
WO (1) | WO2002092941A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2249081B1 (en) * | 2003-04-02 | 2007-04-16 | Industrias Techno-Flex, S.A. | "VIBRATOR DEVICE FOR COMPACTING CONCRETE". |
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 |
DE202018100292U1 (en) | 2018-01-18 | 2018-02-02 | G & P GmbH Ingenieurbüro für Elektro- und Automatisierungstechnik | Temperature monitoring device |
WO2019207748A1 (en) * | 2018-04-27 | 2019-10-31 | 三笠産業株式会社 | Concrete vibrator with idling mode |
WO2021102226A1 (en) * | 2019-11-20 | 2021-05-27 | Milwaukee Electric Tool Corporation | Concrete vibrator |
CN113846845A (en) * | 2021-09-06 | 2021-12-28 | 中国建筑第八工程局有限公司 | Constructional column concrete vibrating pouring equipment and pouring method thereof |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2808238A (en) * | 1955-08-09 | 1957-10-01 | Master Vibrator Co | Concrete vibrator |
GB1097651A (en) * | 1965-09-03 | 1968-01-03 | Stothert & Pitt Ltd | Improvements in vibratory compactors |
DE1936231U (en) * | 1965-12-06 | 1966-04-07 | Anton Poettgens | CONCRETE RUETTEL BOTTLE. |
FR1526524A (en) * | 1967-06-08 | 1968-05-24 | Fyne Machinery & Eng | Improvements to electric vibrators with built-in motor or relating to these vibrators |
DE2162201C2 (en) * | 1971-12-15 | 1974-05-09 | Herbert 4021 Metzkausen Bergmann | Internal vibrator |
DE9217854U1 (en) * | 1992-12-30 | 1993-03-04 | Wacker-Werke Gmbh & Co Kg, 8077 Reichertshofen, De | |
DE19722107C1 (en) * | 1997-05-27 | 1998-10-01 | Wacker Werke Kg | Electrical cable reel with integrated frequency converter esp for concrete compacting |
DE19811344C2 (en) * | 1998-03-16 | 2002-06-27 | Wacker Werke Kg | Concrete compacting arrangement with vibration sensor and control |
DE19964444B4 (en) * | 1999-03-24 | 2008-06-26 | Wacker Construction Equipment Ag | Internal vibrator with frequency converter |
DE10003064C2 (en) * | 2000-01-25 | 2002-06-27 | Wacker Werke Kg | Tool with an electrical consumer and a protective device |
DE20017054U1 (en) * | 2000-09-30 | 2001-01-18 | Tamme Werner | Internal vibrator |
DE10101277B4 (en) * | 2001-01-12 | 2006-11-02 | Wacker Construction Equipment Ag | High-frequency internal vibrator with cooled electronic frequency converter |
-
2001
- 2001-05-17 DE DE10124145A patent/DE10124145C1/en not_active Expired - Fee Related
-
2002
- 2002-05-08 EP EP02769475A patent/EP1387917B1/en not_active Expired - Lifetime
- 2002-05-08 JP JP2002590191A patent/JP2004531384A/en active Pending
- 2002-05-08 DE DE50214469T patent/DE50214469D1/en not_active Expired - Lifetime
- 2002-05-08 WO PCT/EP2002/005107 patent/WO2002092941A1/en active Application Filing
- 2002-05-08 ES ES02769475T patent/ES2344685T3/en not_active Expired - Lifetime
- 2002-05-17 US US10/476,516 patent/US20040144188A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO02092941A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1387917B1 (en) | 2010-06-02 |
ES2344685T3 (en) | 2010-09-03 |
DE50214469D1 (en) | 2010-07-15 |
DE10124145C1 (en) | 2002-08-14 |
WO2002092941A1 (en) | 2002-11-21 |
JP2004531384A (en) | 2004-10-14 |
US20040144188A1 (en) | 2004-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3271932B1 (en) | Safety switching device for fail-safe disconnecting of an electrical load | |
EP1012960B1 (en) | Three-phase motor | |
EP1387917B1 (en) | Internal vibrator for concrete compacting | |
EP2020068B1 (en) | Device for automatically switching off or switching on an electrical consumer | |
EP2256770B1 (en) | Manually activated protective switch with replaceable trigger module | |
DE10164204A1 (en) | Protection device for electric motor with sensor and evaluation unit | |
WO2017157704A1 (en) | Dc overcurrent protection apparatus | |
DE102005027016A1 (en) | Drive arrangement with a drive device of an electrical switching device and method for operating the drive assembly | |
EP0750788B1 (en) | Current-limiting switch | |
EP2555003B1 (en) | Current transducer and load separator with same | |
EP2013892B1 (en) | Electrical circuit breaker | |
DE102021200854A1 (en) | Remote drive, device arrangement with a remote drive and method | |
EP1243990B1 (en) | Guidance/Control-system with a programmable logic control and a plurality of actuators and/or sensors and/or input-units and/or output-units and/or input/output-units | |
WO2013086551A1 (en) | Switch | |
EP2034498B1 (en) | Electromagnetic switching device | |
EP3566275A1 (en) | Electrical switching device | |
EP2502354A2 (en) | Electrical installation system | |
EP0298278A1 (en) | Power supply device connected by a junction cable to at least one electrical tool | |
EP2129846B1 (en) | Outside concrete vibrator having an operation display | |
EP3723238A1 (en) | Electrical installation | |
DE10319081A1 (en) | Electrodynamic drive device | |
DE10041633A1 (en) | Switch apparatus has switch-off process initiated by integrated electronic trigger unit and/or coupling module | |
DE102022123571B3 (en) | SYSTEM FOR ACTUATING A TAP SWITCH | |
EP3915126B1 (en) | Load break switch device and fused switch device having a fuse | |
EP3821217A1 (en) | Protective isolating module for an electrical machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20030929 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
17Q | First examination report despatched |
Effective date: 20081013 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: WACKER NEUSON SE |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR IT SE |
|
REF | Corresponds to: |
Ref document number: 50214469 Country of ref document: DE Date of ref document: 20100715 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2344685 Country of ref document: ES Kind code of ref document: T3 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20110303 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 50214469 Country of ref document: DE Effective date: 20110302 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: PC2A Owner name: WACKER NEUSON PRODUKTION GMBH & CO.KG Effective date: 20120208 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50214469 Country of ref document: DE Representative=s name: MUELLER - HOFFMANN & PARTNER PATENTANWAELTE, DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 50214469 Country of ref document: DE Owner name: WACKER NEUSON PRODUKTION GMBH & CO. KG, DE Free format text: FORMER OWNER: WACKER NEUSON SE, 80809 MUENCHEN, DE Effective date: 20120326 Ref country code: DE Ref legal event code: R082 Ref document number: 50214469 Country of ref document: DE Representative=s name: MUELLER - HOFFMANN & PARTNER PATENTANWAELTE, DE Effective date: 20120326 Ref country code: DE Ref legal event code: R082 Ref document number: 50214469 Country of ref document: DE Representative=s name: MUELLER HOFFMANN & PARTNER PATENTANWAELTE MBB, DE Effective date: 20120326 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20130525 Year of fee payment: 12 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140508 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20150521 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20150519 Year of fee payment: 14 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160509 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20170131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160531 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20170522 Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20170601 Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50214469 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181201 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20190913 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180509 |