EP0734785A1 - Vibratory device for moulding building blocks - Google Patents

Vibratory device for moulding building blocks Download PDF

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Publication number
EP0734785A1
EP0734785A1 EP96104769A EP96104769A EP0734785A1 EP 0734785 A1 EP0734785 A1 EP 0734785A1 EP 96104769 A EP96104769 A EP 96104769A EP 96104769 A EP96104769 A EP 96104769A EP 0734785 A1 EP0734785 A1 EP 0734785A1
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EP
European Patent Office
Prior art keywords
vibration generator
unbalanced mass
generator according
drive
endless drive
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Granted
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EP96104769A
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German (de)
French (fr)
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EP0734785B1 (en
Inventor
Karl Dipl.-Ing. Rekers
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Dipl-Ing Karl Rekers Maschinen- und Stahlbau Firma
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Dipl-Ing Karl Rekers Maschinen- und Stahlbau Firma
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    • 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
    • B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
    • B06B1/166—Where the phase-angle of masses mounted on counter-rotating shafts can be varied, e.g. variation of the vibration phase

Definitions

  • the invention relates to a vibration generator for, in particular, vibrating stations of, for example, stone molding machines with at least one unbalanced mass which can be set in rotation by a motor drive and comprises an inner unbalanced mass and an outer unbalanced mass, the inner unbalanced mass and the outer unbalanced mass being rotatable relative to one another for stepless unbalance adjustment.
  • Known vibration generators for vibrating stations of stone molding machines have two adjacent unbalance bodies with a total of four unbalanced masses (two inner and two outer unbalanced masses) assigned to a vibrating table.
  • the four unbalanced masses are stored separately and driven by four three-phase motors that are electronically controlled and coupled with respect to their rotational speed.
  • steep-pitch spindles are used in order to be able to carry out a continuous unbalance adjustment and thus an amplitude change of the generated directional vibrations.
  • the vibration generator of the type mentioned is characterized in that the inner unbalanced mass and the outer unbalanced mass can each be driven by an endless drive body which can be driven by a motorized central drive unit and at least one endless drive body Is assigned to the adjusting member, which gives this endless drive body an additional movement superimposed on its drive movement for the relative rotation of the inner unbalanced mass and / or the outer unbalanced mass.
  • the vibration generator only a motorized central drive unit is required, which drives the endless drive bodies, preferably toothed belts, of the inner and outer unbalanced mass.
  • the motorized central drive unit expediently has two outputs with drive gearwheels, so that the endless drive bodies can be driven at exactly the same speed without the need for complex electronic control means.
  • the unbalance adjustment can be carried out via the endless drive bodies of the inner and the outer unbalanced mass by the additional inner movement of the unbalanced mass and the outer unbalanced mass being rotated relative to one another by the additional movement of an endless drive body or by additional opposite movements of the two endless drive bodies.
  • the total parts required, including the drive means, are significantly reduced compared to conventional vibration generators, which means that the overall production costs of the vibration generator and thus also of a stone molding machine equipped with such a vibration generator are considerably reduced.
  • the vibrator works extremely well reliable and can be regulated significantly faster with regard to the unbalance to be set, in particular in a design in which both the inner and the outer unbalanced mass perform an additional rotary movement.
  • the space requirement of the vibration generator is also extremely positively influenced, so that, for example, the entire vibration generator with its drive and all necessary parts can be installed compactly and centrally below a vibrating table in a vibrating station of a stone molding machine.
  • the motorized central drive unit is preferably moved or moved in a translatory manner to initiate the additional movement.
  • the two endless drive means are preferably driven in opposite directions by this central motor drive unit, but are guided via deflection wheels and overlap or underclamping of toothed wheels in such a way that internal and external unbalanced masses which are assigned to one another rotate in the same direction and the imbalance bodies arranged or provided adjacent to the vibration generator rotate in opposite directions. If the motor-driven central drive unit is now moved in one direction, an endless drive body experiences an additional movement which is in the same direction as its drive movement direction, but the other drive body experiences an additional movement which is oriented in the opposite direction to its drive movement direction. This automatically leads to a superimposed angle adjustment both the inner and outer unbalance mass.
  • the inner unbalanced mass and the outer unbalanced mass are expediently designed, as in known vibration generators, in such a way that the outer unbalanced mass can overlap the inner unbalanced mass.
  • the inner unbalanced mass meshes with the outer unbalanced mass.
  • the stone molding machine schematically illustrated in FIGS. 1 and 2 has a base board 1 on which concrete products are produced.
  • the base board 1 lies on a vibrating table 2, the vertical vibrations of which are generated by the vibrating stations 3.
  • the vibrating station 3 has a vibration generator with a central drive motor 4 which can be moved horizontally.
  • the drive motor 4 has toothed belt wheels on both sides of the continuous drive shaft, on which the two toothed belts 4.1 (endless drive bodies) are guided via deflection rollers 4.2 and by gripping over / under the toothed wheels such that the two toothed belts rotate in opposite directions.
  • the arrows 5 in FIGS. 4 and 5 show these opposite belt movements generated by the rotation of the motor shaft in order to generate the vibrations.
  • FIG. 4 shows the top view with the four driven toothed disks 6, which drive the four unbalances 7, 8, 9 and 10 (inner unbalanced masses / outer unbalanced masses) via cardan shafts.
  • the toothed belt 4.1 wrapped around the toothed pulleys 6 so that the four unbalances 7, 8, 9 and 10 despite the opposite Drive movements of the toothed belts 4.1 have the correct direction of rotation for the vibration.
  • the unbalances 7 and 8 rotate in the same direction, likewise the unbalances 9 and 10. Overall, the directions of rotation of the unbalances 7 and 8 on the one hand and the unbalances 9 and 10 on the other are exactly opposite to each other.
  • the drive motor 4 can be moved, for example, by a geared motor 15 which moves the motor carriage 18 via the crank 16 and the connecting rod 17.
  • a hydraulic cylinder or another suitable element can also be used.
  • e.g. it is also possible, as illustrated in Fig. 8, e.g. to arrange individual deflection wheels so that they can be shifted in such a way that the additional movement of the toothed belt takes place via a movement of a deflection wheel.
  • the support is shown via a swivel lever.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Jigging Conveyors (AREA)
  • Adornments (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

The device has an unbalance body with inner and outer unbalance mass (8,10,7,9). Inner and outer mass are each driven by a continuous drive body (4.1), e.g. a toothed belt, which in turn is actuated by a central motor drive (4). At least one belt has an associated adjuster (15,16,17). This applied an additional movement to the belt, superimposed over its drive movement, for relative turning of inner and/or outer unbalance mass. The belt for the inner unbalance mass moves in the opposite direction to that for the outer mass. The central motor drive is translatory.

Description

Die Erfindung bezieht sich auf einen Schwingungserzeuger für insbesondere Rüttelstationen von beispielsweise Steinformmaschinen mit zumindest einem von einem motorischen Antrieb in Rotationsbewegung versetzbaren, eine innere Unwuchtmasse sowie eine äußere Unwuchtmasse umfassenden Unwuchtkörper, wobei zur stufenlosen Unwuchtverstellung die innere Unwuchtmasse und die äußere Unwuchtmasse relativ zueinander verdrehbar sind.The invention relates to a vibration generator for, in particular, vibrating stations of, for example, stone molding machines with at least one unbalanced mass which can be set in rotation by a motor drive and comprises an inner unbalanced mass and an outer unbalanced mass, the inner unbalanced mass and the outer unbalanced mass being rotatable relative to one another for stepless unbalance adjustment.

Bekannte Schwingungserzeuger für Rüttelstationen von Steinformmaschinen haben zwei benachbart angeordnete, einem Rütteltisch zugeordnete Unwuchtkörper mit insgesamt vier Unwuchtmassen (zwei innere sowie zwei äußere Unwuchtmassen). Die vier Unwuchtmassen sind separat gelagert und über vier Drehstrommotoren, die hinsichtlich ihrer Rotationsgeschwindigkeit elektronisch gesteuert und darüber gekoppelt sind, angetrieben. Zur relativen Verstellung einer inneren Unwuchtmasse gegenüber einer äußeren Unwuchtmasse werden steilgängige Spindeln eingesetzt, um eine stufenlose Unwuchtverstellung und damit eine Amplitudenänderung der erzeugten gerichteten Schwingungen vornehmen zu können.Known vibration generators for vibrating stations of stone molding machines have two adjacent unbalance bodies with a total of four unbalanced masses (two inner and two outer unbalanced masses) assigned to a vibrating table. The four unbalanced masses are stored separately and driven by four three-phase motors that are electronically controlled and coupled with respect to their rotational speed. For relative adjustment an inner unbalanced mass compared to an outer unbalanced mass, steep-pitch spindles are used in order to be able to carry out a continuous unbalance adjustment and thus an amplitude change of the generated directional vibrations.

Der mit einem solchen Schwingungserzeuger einhergehende baulich und konstruktive Aufwand ist erheblich und beeinflußt die Gesamtkosten einer Steinformmaschine- bzw. -anlage erheblich. Die insgesamt notwendigen Teile, insbesondere auch das Erfordernis von vier separaten Antriebseinheiten, beeinflußt den Platzbedarf eines solchen Schwingungserzeugers nachhaltig. Das wirkt sich auch negativ auf die Gesamtabmessungen einer fertigen Steinformmaschine aus.The constructional and constructive effort associated with such a vibration generator is considerable and has a considerable influence on the overall costs of a stone molding machine or system. The overall necessary parts, in particular the requirement of four separate drive units, have a lasting influence on the space requirement of such a vibration generator. This also has a negative impact on the overall dimensions of a finished stone molding machine.

Es ist Aufgabe der vorliegenden Erfindung, einen Schwingungserzeuger der eingangs genannten Art zu schaffen, mit dem die Unwuchtverstellung sicher und exakt durchzuführen ist, der jedoch insgesamt weniger aufwendig baut und einen geringeren Platzbedarf hat.It is an object of the present invention to provide a vibration generator of the type mentioned at the outset with which the unbalance adjustment can be carried out safely and precisely, but which overall is less complex to build and requires less space.

Zur Lösung dieser Aufgabe zeichnet sich der Schwingungserzeuger der eingangs genannten Art dadurch aus, daß die innere Unwuchtmasse und die äußere Unwuchtmasse jeweils über einen von einer motorischen Zentralantriebseinheit in Antriebsbewegungen versetzbaren Endlosantriebskörper antreibbar sind und zumindest einem Endlosantriebskörper ein Verstellorgan zugeordnet ist, der diesem Endlosantriebskörper zur relativen Verdrehung der inneren Unwuchtmasse und/oder der äußeren Unwuchtmasse eine seiner Antriebsbewegung überlagerte Zusatzbewegung erteilt.To solve this problem, the vibration generator of the type mentioned is characterized in that the inner unbalanced mass and the outer unbalanced mass can each be driven by an endless drive body which can be driven by a motorized central drive unit and at least one endless drive body Is assigned to the adjusting member, which gives this endless drive body an additional movement superimposed on its drive movement for the relative rotation of the inner unbalanced mass and / or the outer unbalanced mass.

Bei dem Schwingungserzeuger nach der Erfindung ist nur noch eine motorische Zentralantriebseinheit notwendig, die die Endlosantriebskörper, vorzugsweise Zahnriemen, der inneren und äußeren Unwuchtmasse antreibt. Dazu hat zweckmäßigerweise die motorische Zentralantriebseinheit zwei Ausgänge mit Antriebszahnrädern, so daß die Endlosantriebskörper ohne das Erfordernis aufwendiger elektronischer Steuerungsmittel mit exakt übereinstimmender Geschwindigkeit anzutreiben sind. Über die Endlosantriebskörper der inneren und der äußeren Unwuchtmasse läßt sich die Unwuchtverstellung durchführen, indem durch die Zusatzbewegung eines Endlosantriebskörper bzw. durch gegensinnige Zusatzbewegungen von beiden Endlosantriebskörpern die ansonsten gleichsinnig und mit übereinstimmender Geschwindigkeit rotierenden innere Unwuchtmasse und äußeren Unwuchtmasse relativ zueinander verdreht werden. Die insgesamt erforderlichen Teile unter Einschluß der Antriebsmittel sind gegenüber herkömmlichen Schwingungserzeugern wesentlich reduziert, womit die Gesamtgestehungskosten des Schwingungserzeugers und damit auch einer mit einem solchen Schwingungserzeuger ausgerüsteten Steinformmaschine erheblich reduziert sind. Gleichwohl arbeitet der Schwingungserzeuger außerordentlich zuverlässig und ist insbesondere in einer Ausbildung, bei der sowohl die innere als auch die äußere Unwuchtmasse eine Zusatzdrehbewegung ausführen, deutlich schneller hinsichtlich der einzustellenden Unwucht zu regeln. Der Platzbedarf des Schwingungserzeugers ist ebenfalls außerordentlich positiv beeinflußt, so daß beispielsweise der gesamte Schwingungserzeuger mit seinem Antrieb und allen notwendigen Teilen kompakt und zentral unterhalb eines Rütteltisches in einer Rüttelstation einer Steinformmaschine einzubauen ist.In the vibration generator according to the invention, only a motorized central drive unit is required, which drives the endless drive bodies, preferably toothed belts, of the inner and outer unbalanced mass. For this purpose, the motorized central drive unit expediently has two outputs with drive gearwheels, so that the endless drive bodies can be driven at exactly the same speed without the need for complex electronic control means. The unbalance adjustment can be carried out via the endless drive bodies of the inner and the outer unbalanced mass by the additional inner movement of the unbalanced mass and the outer unbalanced mass being rotated relative to one another by the additional movement of an endless drive body or by additional opposite movements of the two endless drive bodies. The total parts required, including the drive means, are significantly reduced compared to conventional vibration generators, which means that the overall production costs of the vibration generator and thus also of a stone molding machine equipped with such a vibration generator are considerably reduced. Nevertheless, the vibrator works extremely well reliable and can be regulated significantly faster with regard to the unbalance to be set, in particular in a design in which both the inner and the outer unbalanced mass perform an additional rotary movement. The space requirement of the vibration generator is also extremely positively influenced, so that, for example, the entire vibration generator with its drive and all necessary parts can be installed compactly and centrally below a vibrating table in a vibrating station of a stone molding machine.

Bevorzugtermaßen wird zur Einleitung der Zusatzbewegung die motorische Zentralantriebseinheit translatorisch bewegt bzw. verfahren. Die beiden Endlosantriebsmittel sind von dieser zentralen motorischen Antriebseinheit vorzugsweise gegensinnig angetrieben, jedoch über Umlenkräder und Übergreifen bzw. Untergreifen von Zahnrädern derart geführt, daß einander zugeordnete innere und äußere Unwuchtmassen gleichsinnig rotieren und benachbart dem Schwingungserzeuger angeordnete bzw. vorgesehene Unwuchtkörper gegensinnig rotieren. Wird die motorische Zentralantriebseinheit nunmehr in eine Richtung bewegt, erfährt ein Endlosantriebskörper eine zu seiner Antriebsbewegungsrichtung gleichgerichtete Zusatzbewegung, der andere Antriebskörper jedoch eine zu seiner Antriebsbewegungsrichtung gegensinnig ausgerichtete Zusatzbewegung. Das führt automatisch zu einer überlagerten Winkelverstellung sowohl der inneren als auch der äußeren Unwuchtmasse.The motorized central drive unit is preferably moved or moved in a translatory manner to initiate the additional movement. The two endless drive means are preferably driven in opposite directions by this central motor drive unit, but are guided via deflection wheels and overlap or underclamping of toothed wheels in such a way that internal and external unbalanced masses which are assigned to one another rotate in the same direction and the imbalance bodies arranged or provided adjacent to the vibration generator rotate in opposite directions. If the motor-driven central drive unit is now moved in one direction, an endless drive body experiences an additional movement which is in the same direction as its drive movement direction, but the other drive body experiences an additional movement which is oriented in the opposite direction to its drive movement direction. This automatically leads to a superimposed angle adjustment both the inner and outer unbalance mass.

Zweckmäßigerweise sind die inneren Unwuchtmasse und die äußere Unwuchtmasse wie bei bekannten Schwingungserzeugern derart ausgebildet, daß die äußere Unwuchtmasse die innere Unwuchtmasse übergreifen kann. Es ist allerdings ebenfalls möglich, daß z.B. die innere Unwuchtmasse mit der äußeren Unwuchtmasse kämmt.The inner unbalanced mass and the outer unbalanced mass are expediently designed, as in known vibration generators, in such a way that the outer unbalanced mass can overlap the inner unbalanced mass. However, it is also possible that e.g. the inner unbalanced mass meshes with the outer unbalanced mass.

Bezüglich weiterer Ausgestaltungen der Erfindung wird auf die Ansprüche 2 bis 12 die nachfolgende Beschreibung und auf die Zeichnung verwiesen. In der Zeichnung zeigen:

Fig. 1
ein Ausführungsbeispiel eines Schwingungserzeugers nach der Erfindung in einer Vorderansicht, eingebaut in eine Rüttelstation einer Steinformmaschine;
Fig. 2
eine schematische Seitendarstellung der Rüttelstation nach Fig. 1;
Fig. 3
in einer Draufsicht ein Ausführungsbeispiel eines Schwingungserzeugers nach der Erfindung;
Fig. 4
eine schematische Seitenansicht im Bereiche der strichpunktierten Linie bei II-II im ausgewuchteten Zustand (Rüttelkraft Null)
Fig. 5
eine Seitenansicht der Teile gemäß der Linie I-I in Fig. 3, einmal im Zustand Rüttelkraft Null (Fig. 4) und einmal im Zustand maximaler Rüttelkraft (Fig. 6).
Fig. 7
die zur Fig. 4 analoge Darstellung (II-II) bei maximaler Rüttelkraft, und
Fig. 8
ein alternatives Ausführungsbeispiel mit an einem Schwenkarm lageversetzbar abgestützten Umlenkrädern.
With regard to further refinements of the invention, reference is made to claims 2 to 12, the following description and to the drawing. The drawing shows:
Fig. 1
an embodiment of a vibration generator according to the invention in a front view, installed in a vibrating station of a stone molding machine;
Fig. 2
is a schematic side view of the vibrating station of FIG. 1;
Fig. 3
in a plan view an embodiment of a vibration generator according to the invention;
Fig. 4
a schematic side view in the area of the dash-dotted line at II-II in the balanced state (zero vibrating force)
Fig. 5
a side view of the parts along the line II in Fig. 3, once in the state vibrating zero (Fig. 4) and once in the maximum state Vibration force (Fig. 6).
Fig. 7
the representation analogous to FIG. 4 (II-II) at maximum vibratory force, and
Fig. 8
an alternative embodiment with deflection wheels supported in a displaceable manner on a swivel arm.

Die in den Fig. 1 und 2 schematisch veranschaulichte Steinformmaschine hat ein Unterlagebrett 1, auf dem Betonprodukte hergestellt werden. Das Unterlagebrett 1 liegt auf einem Rütteltisch 2, dessen vertikale Schwingungen durch die Rüttelstationen 3 erzeugt werden. Dazu hat die Rüttelstation 3 einen Schwingungserzeuger mit einem zentralen Antriebsmotor 4, der horizontal zu verschieben ist. Der Antriebsmotor 4 hat zu diesem Zweck an beiden Seiten auf der durchgehenden Antriebswelle Zahnriemenräder, an denen die beiden Zahnriemen 4.1 (Endlosantriebskörper) über Umlenkrollen 4.2 und durch Übergreifen/Untergreifen der Zahnräder derart geführt sind, daß die beiden Zahnriemen gegensinnig umlaufen. Die Pfeile 5 in den Fig. 4 und 5 zeigen diese durch die Rotation der Motorwelle erzeugten gegenläufigen Riemenbewegungen zur Erzeugung der Rüttelschwingungen. Fig. 4 zeigt die Draufsicht mit den vier angetriebenen Zahnscheiben 6, die über Kardanwellen die vier Unwuchten 7, 8, 9 und 10 (inneren Unwuchtmassen/äußeren Unwuchtmassen) antreiben. Die Zahnriemen 4.1 umschlingen die Zahnscheiben 6 so, daß die vier Unwuchten 7, 8, 9 und 10 trotz der gegenläufigen Antriebsbewegungen der Zahnriemen 4.1 die für die Rüttelung richtige Drehrichtung haben. Die Unwuchten 7 und 8 drehen gleichgerichtet, ebenfalls die Unwuchten 9 und 10. Insgesamt sind die Drehrichtungen der Unwuchten 7 und 8 einerseits und die Unwuchten 9 und 10 andererseits exakt zueinander gegenläufig.The stone molding machine schematically illustrated in FIGS. 1 and 2 has a base board 1 on which concrete products are produced. The base board 1 lies on a vibrating table 2, the vertical vibrations of which are generated by the vibrating stations 3. For this purpose, the vibrating station 3 has a vibration generator with a central drive motor 4 which can be moved horizontally. For this purpose, the drive motor 4 has toothed belt wheels on both sides of the continuous drive shaft, on which the two toothed belts 4.1 (endless drive bodies) are guided via deflection rollers 4.2 and by gripping over / under the toothed wheels such that the two toothed belts rotate in opposite directions. The arrows 5 in FIGS. 4 and 5 show these opposite belt movements generated by the rotation of the motor shaft in order to generate the vibrations. 4 shows the top view with the four driven toothed disks 6, which drive the four unbalances 7, 8, 9 and 10 (inner unbalanced masses / outer unbalanced masses) via cardan shafts. The toothed belt 4.1 wrapped around the toothed pulleys 6 so that the four unbalances 7, 8, 9 and 10 despite the opposite Drive movements of the toothed belts 4.1 have the correct direction of rotation for the vibration. The unbalances 7 and 8 rotate in the same direction, likewise the unbalances 9 and 10. Overall, the directions of rotation of the unbalances 7 and 8 on the one hand and the unbalances 9 and 10 on the other are exactly opposite to each other.

Wird nun der Antriebsmotor 4 in Richtung der Pfeile 13 verschoben, so ergibt sich eine Relativbewegung der Zahnriemen 4. 1 in Richtung der Pfeile 14, wodurch - unabhängig von der Drehung der Motorwellen und der Bewegungsrichtung 5 der Zahnriemen - die Unwuchtmassen relativ zueinander so verdreht werden, so daß schließlich die Anordnung gemäß den Fig. 6 und 7 mit maximaler Rüttelkraft erreicht wird.If the drive motor 4 is now displaced in the direction of the arrows 13, there is a relative movement of the toothed belts 4.1 in the direction of the arrows 14, as a result of which - regardless of the rotation of the motor shafts and the direction of movement 5 of the toothed belts - the unbalanced masses are rotated relative to one another , so that finally the arrangement according to FIGS. 6 and 7 is achieved with maximum vibrating force.

Die Verschiebung des Antriebsmotors 4 kann beispielsweise durch einen Getriebemotor 15 erfolgen, der über die Kurbel 16 und das Pleuel 17 den Motorschlitten 18 bewegt. Selbstverständlich kann auch ein Hydraulikzylinder oder ein anderes geeignetes Element eingesetzt werden.The drive motor 4 can be moved, for example, by a geared motor 15 which moves the motor carriage 18 via the crank 16 and the connecting rod 17. Of course, a hydraulic cylinder or another suitable element can also be used.

Alternativ ist es ebenfalls möglich, wie dies Fig. 8 veranschaulicht, z.B. einzelne Umlenkräder derart lageversetzbar anzuordnen, daß die Zusatzbewegung der Zahnriemen über eine Bewegung eines Umlenkrades erfolgt. Gezeigt ist die Abstützung über einen Schwenkebel.Alternatively, it is also possible, as illustrated in Fig. 8, e.g. to arrange individual deflection wheels so that they can be shifted in such a way that the additional movement of the toothed belt takes place via a movement of a deflection wheel. The support is shown via a swivel lever.

Claims (12)

Schwingungserzeuger für insbesondere Rüttelstationen von beispielsweise Steinformmaschinen mit zumindest einem von einem motorischen Antrieb in Rotationsbewegung versetzbaren, eine innere Unwuchtmasse (8,10) sowie eine äußere Unwuchtmasse (7,9) umfassenden Unwuchtkörper, wobei zur stufenlosen Unwuchtverstellung die innere Unwuchtmasse (8,10) und die äußere Unwuchtmasse (7,9) relativ zueinander verdrehbar sind, dadurch gekennzeichnet , daß die innere Unwuchtmasse (8,10) und die äußere Unwuchtmasse (7,9) jeweils über einen von einer motorischen Zentralantriebseinheit (4) in Antriebsbewegungen versetzbaren Endlosantriebskörper (4.1) antreibbar sind und zumindest einem Endlosantriebskörper (4.1) ein Verstellorgan (15,16,17) zugeordnet ist, der diesem Endlosantriebskörper (4.1) zur relativen Verdrehung der inneren Unwuchtmasse (8,10) und/oder der äußeren Unwuchtmasse (7,9) eine seiner Antriebsbewegung überlagerte Zusatzbewegung erteilt.Vibration generator for, in particular, vibrating stations of, for example, stone molding machines with at least one unbalanced mass (8, 10) which can be rotated by a motor drive and comprises an outer unbalanced mass (8, 10) and an outer unbalanced mass (7, 9), the inner unbalanced mass (8, 10) for stepless unbalance adjustment. and the outer unbalanced mass (7, 9) can be rotated relative to one another, characterized in that the inner unbalanced mass (8, 10) and the outer unbalanced mass (7, 9) each have an endless drive body (4) which can be set in drive movements by a motorized central drive unit (4). 4.1) are drivable and at least one endless drive body (4.1) is assigned an adjusting element (15, 16, 17) which is used for this relative drive body (4.1) for the relative rotation of the inner unbalanced mass (8,10) and / or the outer unbalanced mass (7,9 ) issued an additional movement superimposed on its drive movement. Schwingungserzeuger nach Anspruch 1, dadurch gekennzeichnet, daß der Endlosantriebskörper (4.1) der inneren Unwuchtmasse (8,10) gegensinnig zu dem Endlosantriebskörper (4.1) der äußeren Unwuchtmasse (7,9) umläuft.Vibration generator according to claim 1, characterized in that the endless drive body (4.1) of the inner unbalanced mass (8,10) rotates in the opposite direction to the endless drive body (4.1) of the outer unbalanced mass (7,9). Schwingungserzeuger nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Endlosantriebskörper (4.1) als Zahnriemen ausgebildet sind.Vibration generator according to claim 1 or 2, characterized in that the endless drive bodies (4.1) are designed as toothed belts. Schwingungserzeuger nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die motorische Zentralantriebseinheit (4) translatorisch bewegbar ausgebildet ist.Vibration generator according to one of claims 1 to 3, characterized in that the motorized central drive unit (4) is designed to be translationally movable. Schwingungserzeuger nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die motorische Zentralantriebseinheit (4) über einen Endlosantriebskörper (4.1) zwei gegensinnig rotierende innere Unwuchten (8,10) und über den anderen Endlosantriebskörper (4.1) zwei gegensinnig rotierende äußere Unwuchtmassen (7,9) antreibt.Vibration generator according to one of Claims 1 to 4, characterized in that the motor-driven central drive unit (4) has two inner unbalances (8, 10) rotating in opposite directions via an endless drive body (4.1) and two outer unbalanced masses (7) rotating in opposite directions via the other endless drive body (4.1) , 9) drives. Schwingungserzeuger nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Endlosantriebskörper (4.1) über mehrere Umlenkrollen geführt sind.Vibration generator according to one of Claims 1 to 4, characterized in that the endless drive bodies (4.1) are guided over a plurality of deflection rollers. Schwingungserzeuger nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die motorische Zentraleinheit (4) auf einem Motorschlitten (18) abgestützt ist.Vibration generator according to one of claims 1 to 6, characterized in that the motorized central unit (4) is supported on a motor carriage (18). Schwingungserzeuger nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Verstellantrieb einen Getriebemotor (15), eine Kurbel (16) und ein Pleuel (17) aufweist.Vibration generator according to one of Claims 1 to 7, characterized in that the adjustment drive has a geared motor (15), a crank (16) and a connecting rod (17). Schwingungserzeuger nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der Verstellantrieb als Hydraulikzylinder ausgebildet ist.Vibration generator according to one of claims 1 to 8, characterized in that the adjustment drive is designed as a hydraulic cylinder. Schwingungserzeuger nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Endlosantriebskörper (4.1) über lageversetzbare Umlenkrollen geführt sind.Vibration generator according to one of Claims 1 to 9, characterized in that the endless drive bodies (4.1) are guided over deflecting rollers which can be displaced in position. Schwingungserzeuger nach Anspruch 10, dadurch gekennzeichnet, daß die lageversetzbaren Umlenkräder an einem Schwenkhebel abgestützt sind.Vibration generator according to claim 10, characterized in that the displaceable deflection wheels are supported on a pivot lever. Steinformmaschine mit einer einen Schwingungserzeuger nach einem der Ansprüche 1 bis 11 umfassenden Rüttelstation (3), dadurch gekennzeichnet, daß der Schwingungserzeuger mit der motorischen Zentralantriebseinheit (4) unterhalb eines Rütteltisches (2) der Rüttelstation (3) angeordnet ist.Stone molding machine with a vibration station (3) comprising a vibration generator according to one of claims 1 to 11, characterized in that the vibration generator with the motorized central drive unit (4) is arranged below a vibration table (2) of the vibration station (3).
EP96104769A 1995-03-31 1996-03-26 Vibratory device for moulding building blocks Expired - Lifetime EP0734785B1 (en)

Applications Claiming Priority (2)

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DE19511895A DE19511895C2 (en) 1995-03-31 1995-03-31 Vibration generator, in particular for vibrating stations
DE19511895 1995-03-31

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EP0734785B1 EP0734785B1 (en) 1998-10-28

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AT (1) ATE172651T1 (en)
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084445A (en) * 1975-12-11 1978-04-18 Erwin Arthur F Contra-rotating vibrator
US4262549A (en) * 1978-05-10 1981-04-21 Schwellenbach Donald D Variable mechanical vibrator
EP0400510A1 (en) * 1989-06-02 1990-12-05 M.A.B. Apparatus with vibrating table for making concrete products
EP0582872A1 (en) * 1992-08-12 1994-02-16 RILCO GmbH Belt gear
DE4317351A1 (en) * 1993-05-25 1994-12-01 Omag Maschinenbau Ag Concrete mould vibrating machine, in particular core vibrator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708922A1 (en) * 1987-03-19 1988-09-29 Henke Maschf Gmbh Device for manufacturing concrete parts

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084445A (en) * 1975-12-11 1978-04-18 Erwin Arthur F Contra-rotating vibrator
US4262549A (en) * 1978-05-10 1981-04-21 Schwellenbach Donald D Variable mechanical vibrator
EP0400510A1 (en) * 1989-06-02 1990-12-05 M.A.B. Apparatus with vibrating table for making concrete products
EP0582872A1 (en) * 1992-08-12 1994-02-16 RILCO GmbH Belt gear
DE4317351A1 (en) * 1993-05-25 1994-12-01 Omag Maschinenbau Ag Concrete mould vibrating machine, in particular core vibrator

Also Published As

Publication number Publication date
EP0734785B1 (en) 1998-10-28
DK0734785T3 (en) 1999-07-12
ATE172651T1 (en) 1998-11-15
DE19511895A1 (en) 1996-10-02
DE59600725D1 (en) 1998-12-03
DE19511895C2 (en) 1997-12-04

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