EP0483885B1 - Vibrateur pour béton ou similaire - Google Patents

Vibrateur pour béton ou similaire Download PDF

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Publication number
EP0483885B1
EP0483885B1 EP91118827A EP91118827A EP0483885B1 EP 0483885 B1 EP0483885 B1 EP 0483885B1 EP 91118827 A EP91118827 A EP 91118827A EP 91118827 A EP91118827 A EP 91118827A EP 0483885 B1 EP0483885 B1 EP 0483885B1
Authority
EP
European Patent Office
Prior art keywords
vibrator
vibrator according
unbalance
ring
ring wheels
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
EP91118827A
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German (de)
English (en)
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EP0483885A1 (fr
Inventor
Dietrich Erhart
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0483885A1 publication Critical patent/EP0483885A1/fr
Application granted granted 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
    • E04G21/063—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools
    • E04G21/065—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools acting upon the shuttering

Definitions

  • the invention relates to a vibrator for concrete or the like, with a housing which is formed by a cylindrical inner space formed from individual, superimposed ring disks made of sheet metal and the end cover closing the inner space, the vibrator having a driven unbalance rotating around an axis .
  • a vibrator for cultivation is e.g. described on a formwork.
  • This vibrator has an electric motor drive with a symmetrical structure.
  • Eccentrically mounted rotating weights are provided on both sides of the electric motor.
  • a vibrator of the type specified at the outset is apparent from FR-A-844.060.
  • This vibrator includes a housing that is is intended to be embedded in the concrete to be compacted like a pear.
  • An electric motor drives an imbalance that rotates in the housing.
  • the stator of the electric motor is formed from individual, uniform annular disks lying one on top of the other, as is known per se in AC motors, in order to suppress the eddy current formation. To improve the heat dissipation, the disks form part of the housing in the known vibrator.
  • vibrators which e.g. be attached to formwork and which are formed by two end covers, which are connected with a cast housing. It is necessary to machine the cast housing on all major surfaces.
  • the end covers have a fixed axle. This axis carries a tube, the inside diameter of which is larger than the outside diameter of the axis and which represents the eccentrically rotating unbalance.
  • the unbalance is driven by compressed air, which is introduced into the interior of the unbalance tube via a membrane and discharged again through an outlet on the opposite side.
  • the invention is based on the vibrator of the type specified.
  • the interior absorbs the circumferential unbalance and the ring disks are made from plates by means of laser cutting.
  • the design according to the invention of the housing of the unbalance from ring disks brings a significant simplification. Depending on the size of the desired housing, more or fewer ring washers can be put together. It is not necessary to specially edit the washers.
  • the inner surface of the housing is not a running surface for the unbalance, which is guided by the central axis.
  • the annular discs have round holes distributed uniformly on the circumference Pick up fasteners. These round holes are produced in the same operation as the panes themselves.
  • the round holes accommodate, for example, screw bolts which extend between the end covers.
  • the desired size of the housing can easily be obtained in this way by adding or omitting washers.
  • a particular advantage of this design is that the end covers can be mounted in different positions relative to the ring washers, ie relative to the housing.
  • the position of the central axis for the unbalance can also be changed in this way. This has the advantage that, depending on the type of use of the vibrator, the supply of compressed air can be adjusted, so that it is always ensured that the vibrator also starts up. With the previous design, it was necessary to align the axis with the end covers accordingly.
  • the invention further proposes that a plurality of ring disks of substantially the same shape are combined with ring disks which have contours on the outer circumference which serve to fasten the housing on a base frame and / or on a formwork.
  • the fastening means for the housing can be produced in the same way as the ring disks themselves.
  • Part of the ring disks can, for example, have foot-like projections which serve to connect the relevant ring disks and thus also the vibrator to a base frame or formwork .
  • the contours are also produced by laser cutting, so that their manufacturing costs are greatly reduced.
  • end covers are also made from plate by means of laser cutting. If flat plates made of tempered sheet metal are used, it is easy to obtain arrangements that no longer require subsequent processing.
  • the washers that form the housing in the invention generally have the same thickness. However, it is also possible to insert one or more spacer rings between the ring disks or the ring disks and the end covers in order to achieve a certain housing length with sufficient accuracy.
  • the invention proposes recesses in the end caps which deviate from the circular shape and which carry the central axes for the unbalance.
  • the ends of the central axis are adapted to these recesses. In this way, the mutual position of the central axis and the end cover is determined.
  • the orientation of the central axis with respect to the respective intended use is obtained by twisting the end cover in relation to the ring washers. This alignment is important for the startup behavior.
  • the end covers can in particular consist of several disks, which are also each made by laser cutting. By assembling the end cover from several disks, the designs required for the correct functioning can easily be achieved without the need for complex machining processes.
  • the design according to the invention is not only applicable to vibrators which are driven by compressed air.
  • the design according to the invention can also be implemented in the case of vibrators operated by an electric motor.
  • the washers are at least partially made of non-magnetizable material and the washers accommodate a motor winding between them.
  • the housing 1 consists of a package of annular disks 2, some of which have the same shape, but which also differ from one another in particular with regard to their outer contour 5.
  • the end covers 8 and 9 each consist of two disks 13 and 14.
  • the disks 13 and 14 or the end covers 8 and 9 serve on the one hand to close the interior 15, which is enclosed by the annular disks 2, and on the other hand also to guide the tubular imbalance 16 and the fixation and non-rotatable fixing of the central axis 12.
  • the disks 13 and 14 have recesses 11 which deviate from the circular shape, as shown in the illustrations 4 and 6 emerge.
  • a flattening 17 is provided on the central axis 12.
  • Both the washers 2 and the washers 13 and 14 of the end covers 8 and 9 have uniformly distributed round holes 3, in which the connecting elements 4 designed as screws are arranged.
  • the associated nuts are designated 18 and the screw heads 19.
  • the uniform distribution of the round holes 3 allows the end caps 8 and 9, and thus also the central axis 12, to be arranged in different ways in the intended division of, for example, 45 degrees, in order to select the correct position of the central axis 12 with respect to the respective installation.
  • part of the annular disks 2 is designed as a simple disk, while other annular disks, namely the annular disks 32, have foot-like projections 7, so that an outer contour 5 which deviates from the circular shape is obtained.
  • other approaches 21 are provided.
  • the foot-like lugs 7 engage under the mounting bolts 20 of the base frame 6.
  • the lugs 21 cooperate with the clamping wedge 23, which is also supported on the base frame 6 by means of the tab 22. In this way, a stable fixing of the housing 1 with respect to the base frame 6 can be obtained.
  • On the base frame 6 there are also support surfaces 24 for the housing 1.
  • the central axis 12 has the connection 25 for the compressed air which flows through the membrane 26 into the interior of the unbalance 16. This training is known per se. The air finally reaches the outlet openings 28 via the ventilation bores 27.
  • a suitable number of distance compensation rings 10 can also be used, which are made of thinner material than the washers 2.
  • FIG. 4 differs from that of FIGS. 1 to 3 essentially in that a part of the washers 2 each have two foot-like lugs 7 which cooperate with circular wedges 29 on the base frame 6.
  • the exemplary embodiment according to FIGS. 5 and 6 partly has ring disks whose foot-like approaches 7 are designed in such a way that pressure plates 30 can be placed on these foot-like approaches.
  • These pressure plates 30 have screw openings 31, for example, through which screws can be inserted.
  • the washers 2 with the foot-like approaches 7 and washers 2 without such approaches are combined in such a way that the fastening screws in the screw openings 31 are not hindered, so that a vibrator of this type can be screwed directly onto a formwork.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Claims (9)

  1. Vibreur pour ouvrages en beton ou d'autres choses semblables avec un corps qui est fait d'un cylindrique intérieur formé par des particulieres rondelles annulaires de tôle l'un sur l'autre et des couvercles finaux terminant l'interieur; ainsi le vibreur montre un balourd propulsé roulant par un axe characterisé que l' intérieur prend le balourd rotatif et les rondelles annulaires (2) sont faites de planches par coupe de laser.
  2. Vibreur par révendication 1 characterisé que les rondelles annulaires (2) montrent des troux circulaires (3) distribués homogenement à la circonférence qui acceptent les elements de jonction (4).
  3. Vibreur par une ou deux des révendications precedentes characterisé que plusieures rondelles annulaires (2) en principe de meme forme sont combinées avec des rondelles annulaires qui montrent des contours (5) à la circonférence extérieure pour fixer le corps (1) à un embasse (6) et/ou au coffrage.
  4. Vibreur par une ou plusieures révendications precedentes characterisé qu' au moins une part des rondelles annulaires (2) montre des embouts de pies (7).
  5. Vibreur par une ou plusieures révendications precedentes characterisé qu'aussi les couvercles finaux (8,9) sont faits par coupe de laser.
  6. Vibreur par une ou plusieures révendications precedentes characterisé qu'on met dans la ligne des rondelles annulaires (2) un ou plusieurs anneaux compensation de la distance (10).
  7. Vibreur par une ou plusieures révendications precedentes characterisé que des couvercles finaux (8,9) portent dans des evidements (11), qui ne sont pas circulairs, un axe central (12) pour le balourd.
  8. Vibreur par une ou plusieures révendications precedentes characterisé que le rondelles annulaires (2) n' existent au moins partiellement d'un materiel non magnetisable et qu' elles ont un enroulement de moteur entre elles.
  9. Vibreur par une ou plusieures révendications precedentes characterisé que le couvercles finaux (8,9) se composent de plusieures rondelles (13,14).
EP91118827A 1990-11-02 1991-11-04 Vibrateur pour béton ou similaire Expired - Lifetime EP0483885B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9015077U DE9015077U1 (de) 1990-11-02 1990-11-02 Rüttler für Beton o.dgl.
DE9015077U 1990-11-02

Publications (2)

Publication Number Publication Date
EP0483885A1 EP0483885A1 (fr) 1992-05-06
EP0483885B1 true EP0483885B1 (fr) 1995-08-09

Family

ID=6858955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91118827A Expired - Lifetime EP0483885B1 (fr) 1990-11-02 1991-11-04 Vibrateur pour béton ou similaire

Country Status (2)

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EP (1) EP0483885B1 (fr)
DE (2) DE9015077U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2715424B1 (fr) * 1994-01-21 1996-04-12 Quille Entreprise Procédé et dispositif pour contrôler la mise en Óoeuvre du béton dans un train de banches.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172986A (en) * 1978-04-21 1979-10-30 Okura Electric Industry Company, Ltd. Vibrator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR749490A (fr) * 1933-07-24
FR844060A (fr) * 1937-09-30 1939-07-18 Bosch Gmbh Robert Appareil pour le vibrage intérieur du béton et autres matériaux semblables

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172986A (en) * 1978-04-21 1979-10-30 Okura Electric Industry Company, Ltd. Vibrator

Also Published As

Publication number Publication date
EP0483885A1 (fr) 1992-05-06
DE59106213D1 (de) 1995-09-14
DE9015077U1 (de) 1992-03-12

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