EP0358744B1 - Vibrator - Google Patents
Vibrator Download PDFInfo
- Publication number
- EP0358744B1 EP0358744B1 EP89902787A EP89902787A EP0358744B1 EP 0358744 B1 EP0358744 B1 EP 0358744B1 EP 89902787 A EP89902787 A EP 89902787A EP 89902787 A EP89902787 A EP 89902787A EP 0358744 B1 EP0358744 B1 EP 0358744B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unbalanced
- shaft
- shafts
- hub
- unbalanced shaft
- 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
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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
- B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
- B06B1/162—Making use of masses with adjustable amount of eccentricity
- B06B1/164—Making use of masses with adjustable amount of eccentricity the amount of eccentricity being automatically variable as a function of the running condition, e.g. speed, direction
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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
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- 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
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18344—Unbalanced weights
Definitions
- the invention relates to a vibration exciter according to the preamble of patent claim 1.
- Vibration exciters of this type are known (DE-PS 29 09 204).
- the frequency of the excited vibration can be changed by changing the speed of the drive motor and the direction of the vector of the directional vibration by moving the pin with respect to the hub groove, but the mr value is unchanged. It is often desirable to work not only with a selectable, predetermined vibration frequency and a selectable predetermined vibration direction, but also with a predetermined vibration stroke of the compression element which is connected to the vibration exciter and can be selected at least between two different values.
- the invention has for its object to provide a vibration exciter according to the preamble of claim 1, in which the mr value can be changed between a predetermined minimum value and a predetermined maximum value, and to design the vibration exciter so that the double-acting actuator with the smallest possible space requirement can be integrated into the vibration exciter.
- the freely rotatable unbalance parts are on the two unbalanced shafts, depending on their drive direction, either at one or the other stop, from unbalanced shaft to unbalanced shaft at stops corresponding to each other for the same mr value of the individual shafts, so that there is a maximum resulting mr value for one drive direction - based on the directional vibration - and a minimum mr value for the other drive direction, without this having any influence on the vibration direction selected via the position of the pin with respect to the hub groove .
- the measure mentioned in claim 2 further favors this space-saving installation.
- the unbalanced shaft 2 can be driven by means of a hydraulic motor 4 and carries in its longitudinal center a gear wheel 5 connected to it in a rotationally fixed manner.
- a hub 7 surrounded by a gear wheel 6 rigidly connected to it is pushed onto the unbalanced shaft 3 approximately in the longitudinal center but axially immovable.
- the toothed wheel 6 meshes with the toothed wheel 5.
- the unbalanced shaft 3 is designed as a hollow shaft and is provided in the area of the hub with opposed, mutually parallel slots 8 which extend parallel to the axial direction and which penetrate the shaft wall.
- the hub 7 has a preferably helical groove 9, which extends over the length of the slots 8, but runs obliquely to them on. This is indicated schematically by the two parallel lines 9a in FIG. 1.
- an actuator 10 is slidable in the area of the hub 7, which is provided with a pin 11 perpendicular to the shaft axis, which passes through the longitudinal slots 8 with a sliding fit and whose ends protrude into the hub groove 9 in a slidable manner.
- the actuator 10 can be displaced at will in the axial direction of the shaft 3 by means of a double-acting hydraulic servomotor.
- this servomotor comprises two piston rods 12 which engage through the shaft on one or the other side on the actuator 10 and which are rotatably connected to it and which on the outside of the shaft end at pistons 13 rigidly connected to them, each of which in turn in one Cylinder 14 are slidable, which is mounted on one side or the other on the end face to the shaft 3 opposite to the housing 1.
- the unbalanced shaft 3 is provided with split unbalances 15 on both sides of the hub 7.
- Each unbalance 15 consists of two outside unbalance parts 15a, which are connected in a rotationally fixed manner to the unbalance shaft 3, and an unbalance part 15b located in between, which is rotatably mounted on the unbalance shaft 3 and is provided with a stop pin 16 which cooperates with the unbalance parts 15a having counter-stop surfaces and the rotation of the unbalance portion 15b with respect to the rotating rigidly connected with the shaft parts 15a unbalance o limited to about the 180th Between these end positions, the unbalance part 15b can be freely rotated with respect to the unbalance parts 15a, so that there can only be a drag connection mediated by the stop pin 16 between it and the latter.
- the middle unbalance part 15b In one end position, the middle unbalance part 15b, as shown in FIG. 1, is pushed between the unbalance parts 15a and thus increases the effective unbalance mass of the unbalance 15, while in the other end position it is unscrewed between the unbalance parts 15a and thus reduces the effective unbalance mass .
- Which of the two end positions the middle unbalance part 15b assumes with respect to the outer (15a) depends on the direction of rotation of the unbalance shaft 3.
- the position shown in FIG. 1 results when the unbalanced shaft 3 rotates in the direction shown in FIG. 1 for the top right unbalanced part 15a, the other end position turned out between the unbalanced parts 15a when the unbalanced shaft 3 rotates in the opposite direction.
- the unbalances 15 Since the unbalance shafts 2 and 3 rotate in the opposite direction due to the coupling by the gear wheels 5 and 6, the unbalances 15 have the same setting with regard to the relative position of their middle unbalance part 15b with respect to the two outer 15a.
- the unbalance parts 15b are therefore all either screwed in or out of the latter, so that the unbalances 15 also always have the same effective mass, that is, depending on the direction of shaft rotation, either the maximum value or the minimum value.
- their relative phase position from one unbalanced shaft to the other depends on the changeable phase position between the hub 7 and the unbalanced shaft 3.
- the direction of rotation of the balancer shafts 2 and 3 depends on the reversible direction of rotation of the hydraulic motor 4, which can also be equipped with a variable speed.
- pressure medium is supplied to one cylinder and simultaneously released from the other pressure medium.
- the displacement takes place in one or the other direction.
- the phase shift of the unbalanced shaft 3 relative to the hub 7 and thus the unbalance 15 arranged thereon compared to the unbalanced mass 15 on the unbalanced shaft 2, in a positive or negative sense, depends on the length and the slope of the hub groove 9 on both sides of the middle position shown.
- the pressure medium supply and the pressure medium discharge from the Cylinders 14 can be controlled by means of a control valve 116 with three switching positions, which variably connects the pressure line and the return line of a pressure medium source with the connections to the cylinders 14 in the manner shown in FIG. 1 in parallel or crosswise and completely in the middle position thereof separates, whereby the pistons 13 and with them the actuator 10 are hydraulically locked after reaching a desired setting.
- FIG. 2 shows a front view of the positions which the middle unbalance parts 15b assume and in which directions of rotation relative to the associated unbalance parts 15a.
- the sectional view corresponds to the section along the section line III-III in FIG. 1.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Schwingungserreger gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a vibration exciter according to the preamble of
Schwingungserreger dieser Art sind bekannt (DE-PS 29 09 204).Vibration exciters of this type are known (DE-PS 29 09 204).
Bei den bekannten Schwingungserregern können zwar die Frequenz der erregten Schwingung durch Ändern der Drehzahl des Antriebsmotors und die Richtung des Vektors der gerichteten Schwingung durch Verschieben des Stiftes bezüglich der Nabennut verändert werden, doch ist der m.r-Wert unverändert vorgegeben. Häufig ist es erwünscht, nicht nur mit einer wählbaren, vorgegebenen Schwingungsfrequenz und einer wählbaren vorgegebenen Schwingungsrichtung zu arbeiten, sondern auch mit einem wenigstens zwischen zwei verschiedenen Werten wählbaren vorbestimmten Schwingungshub des Verdichtungsorgans, das an den Schwigungserreger angeschlossen ist. Der Schwingungshub s hängt von der Masse M des Verdichtungsorgans und dem mr-Wert des Schwingungserregers nach der Beziehung
Der Erfindung liegt die Aufgabe zugrunde, einen Schwingungserreger gemäß dem Oberbegriff des Patentanspruchs 1 zu schaffen, bei dem auch der m.r-Wert zwischen einem vorbestimmten Minimalwert und einem vorbestimmten Maximalwert verändert werden kann, und den Schwingungserreger dabei so zu gestalten, daß der doppelwirkende Stellmotor mit möglichst geringem Raumbedarf in den Schwingungserreger integriert werden kann.The invention has for its object to provide a vibration exciter according to the preamble of
Die vorstehende Aufgabe wird durch die im Kennzeichnungsteil des Patentanspruchs 1 genannte Merkmalskombination gelöst, von der die Merkmale a) und b) aus DE-B-1 285 777 für sich bekannt sind.The above object is achieved by the combination of features mentioned in the characterizing part of
Bei dem erfindungsgemäßen Schwingungserreger liegen die frei drehbaren Unwuchtteile auf den beiden Unwuchtwellen je nach deren Antriebsrichtung entweder jeweils an dem einen oder an dem anderen Anschlag, und zwar von Unwuchtwelle zu Unwuchtwelle jeweils an für gleichen m.r-Wert der einzelnen Wellen einander entsprechenden Anschlägen ,an, so daß sich für die eine Antriebsrichtung - bezogen auf die gerichtete Schwingung - ein maximaler resultierender m.r-Wert und für die andere Antriebsrichtung ein minimaler m.r-Wert ergibt, ohne daß dies auf die über die Stellung des Stiftes bezüglich der Nabennut gewählte Schwingungsrichtung einen Einfluß hätte.In the vibration exciter according to the invention, the freely rotatable unbalance parts are on the two unbalanced shafts, depending on their drive direction, either at one or the other stop, from unbalanced shaft to unbalanced shaft at stops corresponding to each other for the same mr value of the individual shafts, so that there is a maximum resulting mr value for one drive direction - based on the directional vibration - and a minimum mr value for the other drive direction, without this having any influence on the vibration direction selected via the position of the pin with respect to the hub groove .
Die im Patentanspruch 2 genannte Maßnahme begünstigt diesen raumsparenden Einbau noch weiter.The measure mentioned in
Die Erfindung wird anhand des in der Zeichnung dargestellten Ausführungsbeispieles noch näher erläutert.The invention is explained in more detail with reference to the embodiment shown in the drawing.
In der Zeichnung zeigt:
- Fig. 1
- einen Schwingungserreger in Draufsicht, teilweise im Schnitt parallel zur Zeichenebene durch die Mittelachsen der Unwuchtwellen,
- Fig. 2,3 und 4
- jeweils schematische Darstellungen der relativen Lage der Unwuchtmassen bei verschiedenen Drehrichtungen der Unwuchtwellen und unterschiedlichen Winkelstellungen auf den letzteren.
- Fig. 1
- a vibration exciter in plan view, partly in section parallel to the plane of the drawing through the center axes of the unbalanced shafts,
- Figs. 2,3 and 4
- schematic representations of the relative position of the unbalanced masses at different directions of rotation of the unbalanced shafts and different angular positions on the latter.
Der Schwingungserreger nach Fig. 1 weist ein Gehäuse 1 auf, in dem parallel zueinander zwei Unwuchtwellen 2 und 3 drehbar gelagert sind. Die Unwuchtwelle 2 ist mittels eines Hydromotors 4 antreibbar und trägt in ihrer Längsmitte ein drehfest mit ihr verbundenes Zahnrad 5. Auf die Unwuchtwelle 3 ist etwa in der Längsmitte drehbar aber axial unverschiebbar eine von einem starr mit ihr verbundenen Zahnrad 6 umgebene Nabe 7 aufgeschoben. Das Zahnrad 6 kämmt mit dem Zahnrad 5. Die Unwuchtwelle 3 ist als Hohlwelle ausgeführt und im Bereich der Nabe mit gegenüberliegenden, zueinander parallelen , sich parallel zur Achsrichtung erstreckenden Schlitzen 8 versehen, die die Wellenwandung durchsetzen. Die Nabe 7 weist eine sich über die Länge der Schlitze 8 erstreckende, zu diesen jedoch schräg verlaufende, vorzugsweise schraubenförmige Nut 9 auf. Dies deuten die beiden zueinander parallelen Striche 9a in Fig. 1 schematisch an.1 has a
In dem Hohlraum 3a der Welle 3 ist im Bereich der Nabe 7 ein Stellglied 10 gleitbar , das mit einem zur Wellenachse senkrechten Stift 11 versehen ist, der die Längsschlitze 8 mit Gleitpassung durchsetzt und mit seinen Enden in die Nabennut 9 gleitbar hineinragt.In the
Das Stellglied 10 ist mittels eines doppelwirkenden hydraulischen Stellmotors in Achsrichtung der Welle 3 gewillkürt verschiebbar. Bei der Ausführung nach Fig. 1 umfaßt dieser Stellmotor zwei durch die Welle hindurch auf der einen bzw. anderen Seite am Stellglied 10 angreifende , drehbar mit diesem verbundene Kolbenstangen 12, die wellenaussenseitig an starr mit ihnen verbundenen Kolben 13 enden, die ihrerseits jeweils in einem Zylinder 14 gleitbar sind, der auf der einen bzw. anderen Seite stirnseitig zur Welle 3 dieser gegenüber an das Gehäuse 1 angebaut ist. Wenn sich der eine Kolben 13 in seinem Zylinder 14 welleneinwärts bewegt, verschiebt er über die zugehörige Kolbenstange 12 und das Stellglied 10 die andere Kolbenstange 12 mit ihrem Kolben 13 wellenauswärts, so daß die ganze Kolben/Zylinder-Anordnung wie ein doppelwirkender Arbeitszylinder funktioniert. Bei der damit einhergehenden Verschiebung des Stellgliedes 10 wird mittels des Stiftes 11 die Winkelposition zwischen der Nabe 7 und der Unwuchtwelle 3 geändert. Aufgrund der durch die Zahnräder 5 und 6 geschaffenen drehungssynchronen Verbindung zwischen der Unwuchtwelle 2 und der Nabe 7 ist dies gleichbedeutend mit einer Änderung der relativen Winkelposition zwischen den Unwuchtwellen 2 und 3.The
Die Unwuchtwelle 3 ist beiderseits der Nabe 7 mit geteilten Unwuchten 15 versehen. Jede Unwucht 15 besteht aus zwei außenseitigen Unwuchtteilen 15a, die drehfest mit der Unwuchtwelle 3 verbunden sind, und einem dazwischen befindlichen Unwuchtteil 15b, die drehbar auf der Unwuchtwelle 3 gelagert und mit einem Anschlagstift 16 versehen ist, der mit den Gegenanschlagflächen aufweisenden Unwuchtteilen 15a zusammenwirkt und die Drehbarkeit des Unwuchtteiles 15b gegenüber den drehstarr mit der Welle verbundenen Unwuchtteilen 15a auf etwa 180o begrenzt. Zwischen diesen Endpositionen ist der Unwuchtteil 15b gegenüber den Unwuchtteilen 15a frei drehbar, so daß zwischen ihm und den letzteren nur eine durch den Anschlagstift 16 vermittelte Schleppverbindung bestehen kann. In der einen Endposition ist der mittlere Unwuchtteil 15b, wie in Fig. 1 dargestellt, zwischen die Unwuchtteile 15a hineingeschoben und vergrößert damit die wirksame Unwuchtmasse der Unwucht 15, während er in der anderen Endposition zwischen den Unwuchtteilen 15a herausgedreht ist und so die wirksame Unwuchtmasse verkleinert. Welche von den beiden Endlagen der mittlere Unwuchtteil 15b gegenüber dem äußeren (15a) einnimmt, hängt von der Drehrichtung der Unwuchtwelle 3 ab. Die in Fig. 1 eingezeichnete Stellung ergibt sich, wenn sich die Unwuchtwelle 3 in der in Fig. 1 beim obersten rechten Unwuchtteil 15a eingezeichneten Richtung dreht, die andere, zwischen den Unwuchtteilen 15a herausgedrehte Endposition bei Drehung der Unwuchtwelle 3 in der Gegenrichtung.The
Aus Übersichtlichkeitsgründen ist nur für die in Fig. 1 rechts oben zu sehende Umwucht 15 die Bezeichnung mit Bezugszahlen vorgenommen. Die geschilderten Verhältnisse und Bezeichnungen gelten auch für die andere Unwucht 15 sowie für entsprechende Unwuchten 15 gleicher Konstruktion und Masse, die im gleicher Längsposition auf der Umwuchtwelle 2 angeordnet sind.For reasons of clarity, the designation with reference numbers has only been made for the
Da sich die Unwuchtwellen 2 und 3 aufgrund der Kopplung durch die Zahnräder 5 und 6 in Gegenrichtung drehen, haben die Unwuchten 15 hinsichtlich der relativen Lage ihres mittleren Unwuchtteils 15b gegenüber den beiden äußeren 15a jeweils die gleiche Einstellung. Die Unwuchtteile 15b sind also alle entweder zwischen die letzteren hineingedreht oder daraus herausgedreht, so daß die Unwuchten 15 untereinander auch stets gleiche wirksame Masse haben, also abhängig von der Wellendrehrichtung entweder den Maximalwert oder dem Minimalwert. Ihre relative Phasenlage von der einen Umwuchtwelle zur anderen hängt hierbei jedoch von der verändorbaren Phasenlage zwischen der Nabe 7 und der Unwuchtwelle 3 ab.Since the
Die Drehrichtung der Umwuchtwellen 2 und 3 hängt von der umkehrbaren Drehrichtung des Hydromotors 4 ab, der auch mit einer veränderbaren Drehzahl ausgerüstet sein kann. Zur Verschiebung des Stellgliedes 10 wird jeweils dem einen Zylinder Druckmittel zugeführt und gleichzeitig aus dem anderen Druckmittel abgelassen. Je nach dem welcher der beiden Zylinder 14 mit Druck beaufschlagt wird, findet die Verschiebung in der einen bzw. anderen Richtung statt. Die damit gegenüber der in Fig. 1 dargestellten Position erreichbare Phasenverschiebung der Unwuchtwelle 3 gegenüber der Nabe 7 und damit der auf dieser angeordneten Unwuchten 15 gegenüber den Unwuchten 15 auf der Unwuchtwelle 2 im positiven oder negativen Sinne hängt von der Länge und der Steigung der Nabennut 9 beiderseits der dargestellten Mittelposition ab.The direction of rotation of the
Die Druckmittelzufuhr und der Druckmittelablaß aus den Zylindern 14 ist mittels eines Steuerventils 116 mit drei Schaltpositionen steuerbar, das die Druckleitung und die Rückführleitung einer Druckmittelquelle in veränderbarer Weise mit dem Anschlüssen an den Zylindern 14 in der in Fig. 1 dargestellten Weise parallel oder über Kreuz verbindet und in der Mittelstellung von diesen vollständig trennt, wodurch die Kolben 13 und mit diesen das Stellglied 10 nach Erreichen einer gewünschten Einstellung hydraulisch verriegelt werden.The pressure medium supply and the pressure medium discharge from the
Die Fig. 2 gibt in Stirnansicht wieder, welche Positionen die mittleren Unwuchtteile 15b bei welchen Drehrichtungen gegenüber den zugehörigen Unwuchtteilen 15a einnehmen. Die Schnittdarstellung entspricht dem Schnitt entlang der Schnittlinie III-III in Fig. 1.2 shows a front view of the positions which the
Die Fig. 3 und 4 geben jeweils für die eine bzw. andere der beiden in Fig. 2 eingetragenen Drehrichtungen drei verschiedene , mittels des Stellgliedes 10 wählbare Phasenlagen zwischen den Unwuchtwellen 2 und 3 und den zugehörigen Vektor V der resultierenden gerichteten Schwingung nach Größe und Richtung wieder. Die Vektorrichtung ist kontinuierlich veränderbar , während die Vektorgröße bei fester Drehzal und vorgegebenen Unwuchten nur zwei vorgegebene Festwerte annehmen kann. Hiervon abweichende Werte sind nur über eine Drehzahlerhöhung oder -minderung gegenüber der vorgenannten festen Drehzahl erreichbar. Viele Verdichtungsarbeiten verlangen eine vorbestimmte Vibratorfrequenz und die Möglichkeit, hierbei mit unterschiedlichen m.r-Werten arbeiten zu können, ist vom größtem Vorteil.3 and 4 give three for one or the other of the two directions of rotation entered in FIG. 2 Different phase positions between the
Claims (2)
- Vibration exciter with two axially parallel unbalanced shafts coupled to each other in a form fit manner to be rotatable in opposite directions, one of which is driven by a driving motor, and which are coupled by means of a hub for continuous counter rotation in order to change the phase relationship of the unbalanced masses, which hub is disposed on one of the unbalanced shafts in a rotatable but axially fixed manner and in the wall surrounding the shaft comprises a hub groove extending along the unbalanced shaft, into which groove a pin held in a rotationally fixed manner with respect to the unbalanced shaft is inserted in a sliding manner, which pin can be displaced in a slit in the unbalanced shaft, extending along the unbalanced shaft and inclined to the hub groove, by means of an adjusting member which can be actuated at will by a servomotor and is disposed coaxially to the unbalanced shaft, characterised by the combination of the features which are known per se,a) that the driving direction of the driven unbalanced shaft is reversible,b) each unbalanced shaft comprises an unbalanced part rigidly attached to it and an unbalanced part to be freely rotatable on it through a predetermined angle range between end positions defined by stops and the stops are disposed with respect to the rigid unbalanced part in such a way that the total imbalance from the rigid unbalanced part and the movable unbalanced part has one maximum value in one end position of the latter and one maximum value in the other end position and the rotatable unbalanced parts on both unbalanced shafts each take up the same end position in dependence upon the driving direction, andc) the servomotor is formed to be double acting,and characterised in thatd) the double acting servomotor consists of two single acting servomotors operating in directions which are opposite to each other, of which one engages the adjusting member from one end of the unbalanced shaft and the other from the other end of the unbalanced shaft.
- Vibration exciter according to claim 1, characterised in that the servomotors are hydraulic working cylinders of which the cylinder chambers protrude at least partially into the unbalanced shaft.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3806897A DE3806897A1 (en) | 1988-03-03 | 1988-03-03 | Vibration exciter |
| DE3806897 | 1988-03-03 | ||
| PCT/EP1989/000222 WO1989007988A1 (en) | 1988-03-03 | 1989-03-03 | Vibrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0358744A1 EP0358744A1 (en) | 1990-03-21 |
| EP0358744B1 true EP0358744B1 (en) | 1996-06-26 |
Family
ID=6348737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89902787A Expired - Lifetime EP0358744B1 (en) | 1988-03-03 | 1989-03-03 | Vibrator |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5010778A (en) |
| EP (1) | EP0358744B1 (en) |
| JP (1) | JP2718415B2 (en) |
| DE (2) | DE3806897A1 (en) |
| ES (1) | ES2010628A6 (en) |
| WO (1) | WO1989007988A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10031617A1 (en) * | 2000-06-29 | 2002-01-17 | Wacker Werke Kg | Vibration exciter with amplitude adjustment |
| WO2002011906A1 (en) * | 2000-08-04 | 2002-02-14 | Wacker-Werke Gmbh & Co. Kg | Controllable vibration generator |
| DE10057807A1 (en) * | 2000-11-22 | 2002-06-06 | Wacker Werke Kg | Adjustment device for function parameters for an unbalance vibration exciter |
| DE10241200A1 (en) * | 2002-09-05 | 2004-03-25 | Wacker Construction Equipment Ag | Vibration exciter for soil compaction equipment |
| DE102004028715B3 (en) * | 2004-06-14 | 2006-02-02 | Wacker Construction Equipment Ag | Vibration exciter includes an adjusting device with switch and force action device to switch selectively between first and second device so that movable elements can be positioned in different operating positions |
| DE102005029433A1 (en) * | 2005-06-24 | 2006-12-28 | Wacker Construction Equipment Ag | Vibrating plate for compacting soil has one unbalanced mass not requiring phase adjusting device but all other unbalanced masses with such device |
| DE102006029241A1 (en) * | 2006-06-26 | 2007-12-27 | Gebr. Bellmer Gmbh Maschinenfabrik | Device for generating vibrations |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0506722B1 (en) * | 1989-12-20 | 1994-09-14 | Gedib Ingenieurbüro Und Innovationsberatung Gmbh | Vibration generator |
| FR2679156B1 (en) * | 1991-07-15 | 1993-10-29 | Procedes Techniques Construction | A VARIABLE MOMENT THAT CAN BE USED IN PARTICULAR FOR Sinking objects into the ground. |
| US5231886A (en) * | 1991-08-29 | 1993-08-03 | Renold, Inc. | Non-metallic gear shaker |
| JPH05161305A (en) * | 1991-09-02 | 1993-06-25 | Toyo Kikai Seisakusho:Kk | Variable vibration force device for dual vibration generator |
| FR2692523B1 (en) * | 1992-06-19 | 1994-10-07 | Procedes Tech Construction | Device for controlling a vibrator at variable time. |
| DE4301368A1 (en) * | 1992-07-03 | 1994-01-05 | Gedib Ingbuero Innovation | Device and method for exciting vibrations |
| DE4434779A1 (en) * | 1994-09-29 | 1996-04-04 | Bomag Gmbh | Method and device for dynamically compacting soil |
| GB2305488B (en) * | 1995-09-21 | 1999-04-28 | Moog Inc | Modular vibratory force generator, and method of operating same |
| DE19547043C2 (en) * | 1995-12-18 | 1997-10-02 | Wacker Werke Kg | Vibration exciter for generating a directional vibration |
| DE19913074C2 (en) * | 1999-03-23 | 2001-07-26 | Wacker Werke Kg | Soil compacting device with servo control |
| US7059802B1 (en) * | 2000-11-15 | 2006-06-13 | Wacker Corporation | Vibratory compactor and compact exciter assembly usable therewith |
| US6769838B2 (en) | 2001-10-31 | 2004-08-03 | Caterpillar Paving Products Inc | Variable vibratory mechanism |
| JP3799022B2 (en) * | 2003-02-24 | 2006-07-19 | 酒井重工業株式会社 | Vibration mechanism and vibration roller |
| US7165469B2 (en) * | 2003-04-10 | 2007-01-23 | M-B-W Inc. | Shift rod piston seal arrangement for a vibratory plate compactor |
| DE202005006059U1 (en) * | 2005-04-15 | 2005-06-23 | MTS Gesellschaft für Maschinentechnik und Sonderbauten mbH | Cultivation compressor with adjustable exciter mass |
| US20070170207A1 (en) * | 2005-09-23 | 2007-07-26 | General Kinematics Corporation | Bin activator apparatus |
| DE102007018353A1 (en) * | 2007-04-18 | 2008-10-30 | Wacker Construction Equipment Ag | Vibration generator for soil compacting devices |
| DE102011112316B4 (en) * | 2011-09-02 | 2020-06-10 | Bomag Gmbh | Vibration exciter for generating a directional excitation vibration |
| DE102012025378A1 (en) * | 2012-12-27 | 2014-07-03 | Wacker Neuson Produktion GmbH & Co. KG | VIBRATOR FOR FLOOR COMPACTERS |
| DE102012025376A1 (en) * | 2012-12-27 | 2014-07-03 | Wacker Neuson Produktion GmbH & Co. KG | VIBRATING ARMOR FOR STEERING FLOOR COMPENSATING DEVICES |
| EP3642420A4 (en) * | 2017-06-19 | 2021-02-17 | Volvo Construction Equipment AB | Vibratory eccentric assemblies for compaction machines |
| JP6879221B2 (en) * | 2018-01-12 | 2021-06-02 | トヨタ自動車株式会社 | Internal combustion engine |
| GB2573535B (en) * | 2018-05-08 | 2021-05-05 | Terex Gb Ltd | Adjustable vibratory drive system |
| AT523034A3 (en) * | 2019-09-18 | 2024-02-15 | Plasser & Theurer Export Von Bahnbaumaschinen Gmbh | Machine and method for stabilizing a track |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1078058B (en) * | 1957-11-09 | 1960-03-17 | Losenhausenwerk Duesseldorfer | Unbalance vibrators, especially for soil compactors, with adjustable unbalance bodies |
| DE1285777B (en) * | 1967-03-10 | 1968-12-19 | Losenhausen Maschb Ag | Unbalance rioters |
| DE1758340B1 (en) * | 1968-05-15 | 1969-09-04 | Delmag Maschinenfabrik | Device for changing the phase position of two unbalances |
| DE2625696A1 (en) * | 1976-06-08 | 1977-12-22 | Mueller & Co Masch Fernthal | Vibratory ram with synchronously rotating imbalances - has two shafts each mounting fixed eccentric mass with stop engaged by movable mass |
| JPS5559869A (en) * | 1978-10-27 | 1980-05-06 | Kensetsu Kikai Chiyousa Kk | Vibromotive force variable vibration device |
| DE2909204C2 (en) * | 1979-03-09 | 1982-08-19 | Wacker-Werke Gmbh & Co Kg, 8077 Reichertshofen | Vibration exciter with two unbalances |
| DE3120654C2 (en) * | 1981-05-23 | 1985-11-28 | Wolfgang Ing.(grad.) 5241 Steinebach Springer | Arrangement for generating mechanical vibrations with two mutually adjustable rotating unbalanced masses |
| DE3208070A1 (en) * | 1982-03-05 | 1983-09-08 | Maschinenbau Ulm Gmbh, 7900 Ulm | Vibrator device |
| DE3410449A1 (en) * | 1984-03-22 | 1985-09-26 | Uhde Gmbh, 4600 Dortmund | Unbalanced oscillatory drive |
| DE3418268A1 (en) * | 1984-05-17 | 1985-11-21 | Benno 5205 St Augustin Kaltenegger | VIBRATION DEVICE, ESPECIALLY FOR SOIL COMPRESSION DEVICES |
-
1988
- 1988-03-03 DE DE3806897A patent/DE3806897A1/en not_active Withdrawn
-
1989
- 1989-03-03 ES ES8900775A patent/ES2010628A6/en not_active Expired
- 1989-03-03 US US07/442,321 patent/US5010778A/en not_active Expired - Lifetime
- 1989-03-03 EP EP89902787A patent/EP0358744B1/en not_active Expired - Lifetime
- 1989-03-03 DE DE58909695T patent/DE58909695D1/en not_active Expired - Lifetime
- 1989-03-03 JP JP1502580A patent/JP2718415B2/en not_active Expired - Lifetime
- 1989-03-03 WO PCT/EP1989/000222 patent/WO1989007988A1/en active IP Right Grant
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10031617A1 (en) * | 2000-06-29 | 2002-01-17 | Wacker Werke Kg | Vibration exciter with amplitude adjustment |
| WO2002011906A1 (en) * | 2000-08-04 | 2002-02-14 | Wacker-Werke Gmbh & Co. Kg | Controllable vibration generator |
| DE10038206A1 (en) * | 2000-08-04 | 2002-02-21 | Wacker Werke Kg | Adjustable vibration exciter |
| DE10038206C2 (en) * | 2000-08-04 | 2002-09-26 | Wacker Werke Kg | Adjustable vibration exciter |
| DE10057807A1 (en) * | 2000-11-22 | 2002-06-06 | Wacker Werke Kg | Adjustment device for function parameters for an unbalance vibration exciter |
| DE10057807C2 (en) * | 2000-11-22 | 2002-10-24 | Wacker Werke Kg | Adjustment device for function parameters for an unbalance vibration exciter |
| EP1335799A1 (en) * | 2000-11-22 | 2003-08-20 | Wacker Construction Equipment AG | Readjusting device for an unbalanced mass exciter |
| DE10241200A1 (en) * | 2002-09-05 | 2004-03-25 | Wacker Construction Equipment Ag | Vibration exciter for soil compaction equipment |
| CN100348339C (en) * | 2002-09-05 | 2007-11-14 | 威克建设设备有限公司 | Vibration exciter for soil compacting devices |
| DE102004028715B3 (en) * | 2004-06-14 | 2006-02-02 | Wacker Construction Equipment Ag | Vibration exciter includes an adjusting device with switch and force action device to switch selectively between first and second device so that movable elements can be positioned in different operating positions |
| DE102005029433A1 (en) * | 2005-06-24 | 2006-12-28 | Wacker Construction Equipment Ag | Vibrating plate for compacting soil has one unbalanced mass not requiring phase adjusting device but all other unbalanced masses with such device |
| DE102006029241A1 (en) * | 2006-06-26 | 2007-12-27 | Gebr. Bellmer Gmbh Maschinenfabrik | Device for generating vibrations |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1989007988A1 (en) | 1989-09-08 |
| US5010778A (en) | 1991-04-30 |
| JPH02501811A (en) | 1990-06-21 |
| JP2718415B2 (en) | 1998-02-25 |
| DE3806897A1 (en) | 1989-09-14 |
| EP0358744A1 (en) | 1990-03-21 |
| DE58909695D1 (en) | 1996-08-01 |
| ES2010628A6 (en) | 1989-11-16 |
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