EP2266713A1 - Oscillation exciter - Google Patents
Oscillation exciter Download PDFInfo
- Publication number
- EP2266713A1 EP2266713A1 EP09008359A EP09008359A EP2266713A1 EP 2266713 A1 EP2266713 A1 EP 2266713A1 EP 09008359 A EP09008359 A EP 09008359A EP 09008359 A EP09008359 A EP 09008359A EP 2266713 A1 EP2266713 A1 EP 2266713A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vibration generator
- generator according
- motor
- exciter
- swivel 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
- 230000010355 oscillation Effects 0.000 title description 2
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000001050 lubricating effect Effects 0.000 claims description 5
- 230000009849 deactivation Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 12
- 239000012208 gear oil Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000006735 deficit Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Images
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
- B06B1/166—Where the phase-angle of masses mounted on counter-rotating shafts can be varied, e.g. variation of the vibration phase
-
- 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, in particular for a vibratory hammer according to the preamble of patent claim 1.
- vibration generators such as vibrators, vibrators or vibratory bears are used to bring profiles into the soil or to pull or to compact soil material.
- the soil is stimulated by vibration and thus reaches a "pseudo-liquid" state.
- the vibration is characterized by a linear movement and is generated by pairwise counter-rotating balancing within an exciter operation.
- circumferentially acting vibration generators are conceivable in which the vibration is characterized by a helical oscillation.
- Vibration generators are characterized by the installed balance (static moment) and the maximum speed.
- the previously known vibration exciter has proven itself in practice.
- the use of a rotary vane type motor allows a relative displacement of the imbalance masses to each other, without a conversion of a linear movement is required in a rotational movement, whereby a compact design can be achieved.
- the hydraulic connection of the swivel motor within the exciter transmission proves to be problematic.
- the swivel motor is connected via a rotary feedthrough with the hydraulics of the carrier device.
- the hydraulic pressure may be different depending on the working operation. It may therefore happen that the applied pressure falls below the minimum pressure required for proper operation of the swing motor. This has the consequence that the end position of the swing motor is either not achieved or too slow.
- the rotary feedthrough of the slewing motor is subject to wear, which may leak, through which hydraulic oil can get into the transmission oil.
- the lubricating properties of the transmission oil are impaired.
- an increase in the oil level can be caused in the transmission. Such an increase in the oil level in turn causes a hindrance to the movement of the rotating parts, causing a rise in temperature of the vibration generator, associated with a power loss can result.
- the invention aims to remedy this situation.
- the invention has for its object to provide a swivel motor of the type mentioned, in which the aforementioned problems are avoided. According to the invention, this object is solved by the features of claim 1.
- a vibration generator in which a reliable adjustment of the static torque is ensured, and an impairment of the transmission oil is avoided.
- the pump for feeding the swing motor at the same time the lubricating oil pump of the exciter transmission.
- the swivel motor is in this case supplied with a constant oil pressure, wherein the applied pressure is significantly higher here than during operation of the swivel motor via the hydraulic system of the carrier device according to the prior art.
- the pivot motor can be made smaller.
- the lubricating oil pump of the exciter transmission is operated via a shaft of the exciter transmission.
- the swivel motor on a rotary feedthrough for fluid supply.
- a filter is arranged in the supply line of the swivel motor.
- the pivot motor comprises a rotor shaft and a stator housing, wherein means for locking the stator housing are arranged with the rotor shaft.
- the locking means is formed by a spring-loaded multi-disc brake. This allows a compact design.
- the means for locking is hydraulically actuated.
- an inlet valve is arranged in the feed line of the swivel motor, which is set up such that the supply line is pressurized only when the swivel motor is driven. As a result, a relief of the supply pump of the swing motor is effected.
- a control device which is set up in such a way that, when the swivel motor is actuated, deactivation of the locking means takes place at the same time. This allows a vote between locking and slewing motor.
- control device is set up in addition to the control of the inlet valve, such that the inlet valve is then switched to run when no control of the swing motor takes place.
- the vibration generator chosen as an exemplary embodiment is designed as an excitation transmission, consisting essentially of a housing in which two shafts provided with gears are rotatably mounted, and a pivot motor whose rotor shaft is provided with gears and whose stature housing with a gear.
- an excitation transmission consisting essentially of a housing in which two shafts provided with gears are rotatably mounted, and a pivot motor whose rotor shaft is provided with gears and whose stature housing with a gear.
- the exciter 1 is connected to the lubrication of the rotating parts with gear oil with a lubricating pump 2.
- the lubricating pump 2 conveys the transmission oil located in a reservoir tank of the housing of the exciter transmission 1 under high pressure to the corresponding lubrication points.
- the arranged in the exciter 1 swing motor 3 is connected via supply lines 31 to a further supply pump 4.
- the supply pump 4 conveys transmission oil from the reservoir tank of the exciter 1 in the working chambers of the swing motor 3.
- an inlet valve 5 is arranged, via which the supply of the working chambers of the swing motor 3 are controllable.
- the inlet valve 5 is a 4- / 3-way valve.
- the inlet valve is controllable via a control module 6, with which the inlet valve 5 is connected.
- designed as 4- / 3-way valve inlet valve 5 is formed electromagnetically controllable.
- the supply lines 31 are connected via a rotary feedthrough 32 with the pivot motor 3.
- the rotary feedthrough 32 is arranged without additional seals on the pivot motor 3.
- the resulting leakage is not important for the operation of the vibrator, since the exiting transmission oil passes back into the reservoir of the housing of the exciter 1. Due to the higher viscosity of the gear oil, the leakage of the rotary feedthrough 32 is low, as well as the inner leakage of the swing motor 3. Since the leakage of the rotary feedthrough 32 and the swing motor 3 and the displaced from the swing motor 3 oil no longer flow into the drain line, this is relieves, whereby the leakage oil pressure decreases.
- the pump 2 ' In the embodiment according to FIG. 2 is merely a pump 2 'arranged, which both the tasks of the lubricating pump 2 and the supply pump 4 of the swing motor 3 in the embodiment according to FIG. 1 takes over.
- the pump 2 ' is dimensioned larger.
- the pump 2 'in the embodiment according to FIG. 2 operated via a shaft of the exciter 1.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- General Details Of Gearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Die Erfindung betrifft einen Schwingungserreger, insbesondere für eine Vibrationsramme nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a vibration exciter, in particular for a vibratory hammer according to the preamble of patent claim 1.
Im Bauwesen werden Schwingungserzeuger wie Vibratoren, Rüttler oder Vibrationsbären verwendet, um Profile in den Boden einzubringen oder zu ziehen oder auch um Bodenmaterial zu verdichten. Der Boden wird durch Vibration angeregt und erreicht so einen "pseudoflüssigen" Zustand. Durch statische Auflast kann das Rammgut dann in den Baugrund gedrückt werden. Die Vibration ist gekennzeichnet durch eine lineare Bewegung und wird durch paarweise gegenläufig rotierende Umwuchten innerhalb eines Erregerbetriebes generiert. Alternativ sind umlaufend wirkende Schwingungserzeuger vorstellbar, bei denen die Vibration durch eine schraubenförmige Oszillation gekennzeichnet ist. Schwingungserzeuger werden charakterisiert durch die installierte Umwucht (statisches Moment) und die maximale Drehzahl.In construction, vibration generators such as vibrators, vibrators or vibratory bears are used to bring profiles into the soil or to pull or to compact soil material. The soil is stimulated by vibration and thus reaches a "pseudo-liquid" state. By static load the pile can then be pressed into the ground. The vibration is characterized by a linear movement and is generated by pairwise counter-rotating balancing within an exciter operation. Alternatively, circumferentially acting vibration generators are conceivable in which the vibration is characterized by a helical oscillation. Vibration generators are characterized by the installed balance (static moment) and the maximum speed.
Um in Abhängigkeit von Rammgut und Bodeneigenschaften einen optimalen Vortrieb bzw. eine gute Verdichtung zu erreichen, ist es erforderlich, die Einstellung der Vibration über eine Veränderung des statischen Moments oder der Phasenlage der Unwuchten zu regeln. Beim Anfahren des Schwingungserregers wird der Eigenfrequenzbereich des Bodens durchfahren. Wird der Boden im Resonanzbereich angeregt, wird die Amplitude der Bodenschwingung sehr groß, was zu Schäden bei angrenzender Bebauung führen kann. Daher ist es erforderlich, dass beim Anfahren des Schwingungserregers keine Umwuchten wirken. Aus der
Der vorbekannte Schwingungserreger hat sich in der Praxis bewährt. Der Einsatz eines Drehflügelschwenkmotors ermöglicht eine relative Verstellung der Unwuchtmassen zueinander, ohne dass eine Umwandlung einer linearen Bewegung in eine Drehbewegung erforderlich ist, wodurch eine kompakte Bauweise erzielt werden kann. Als problematisch erweist sich jedoch der hydraulische Anschluss des Schwenkmotors innerhalb des Erregergetriebes. Der Schwenkmotor ist über eine Drehdurchführung mit der Hydraulik des Trägergerätes verbunden. Dabei kann der Hydraulikdruck jedoch je nach Arbeitsbetrieb unterschiedlich sein. Es kann mithin vorkommen, dass der anliegende Druck unter den Mindestdruck fällt, der für einen ordnungsmäßigen Betrieb des Schwenkmotors erforderlich ist. Dies hat zur Folge, dass die Endlage des Schwenkmotors entweder gar nicht oder zu langsam erzielt wird. Darüber hinaus unterliegt die Drehdurchführung des Schwenkmotors einem Verschleiß, wodurch Leckagen auftreten können, über die Hydrauliköl ins Getriebeöl gelangen kann. Hierdurch werden die Schmiereigenschaften des Getriebeöls beeinträchtigt. Außerdem kann ein Anstieg des Ölstands im Getriebe verursacht sein. Ein solcher Anstieg des Ölstands bewirkt wiederum eine Behinderung der Bewegung der drehenden Teile, was einen Temperaturanstieg des Schwingungserregers, verbunden mit einem Leistungsabfall zur Folge haben kann.The previously known vibration exciter has proven itself in practice. The use of a rotary vane type motor allows a relative displacement of the imbalance masses to each other, without a conversion of a linear movement is required in a rotational movement, whereby a compact design can be achieved. However, the hydraulic connection of the swivel motor within the exciter transmission proves to be problematic. The swivel motor is connected via a rotary feedthrough with the hydraulics of the carrier device. However, the hydraulic pressure may be different depending on the working operation. It may therefore happen that the applied pressure falls below the minimum pressure required for proper operation of the swing motor. This has the consequence that the end position of the swing motor is either not achieved or too slow. In addition, the rotary feedthrough of the slewing motor is subject to wear, which may leak, through which hydraulic oil can get into the transmission oil. As a result, the lubricating properties of the transmission oil are impaired. In addition, an increase in the oil level can be caused in the transmission. Such an increase in the oil level in turn causes a hindrance to the movement of the rotating parts, causing a rise in temperature of the vibration generator, associated with a power loss can result.
Hier will die Erfindung Abhilfe schaffen. Der Erfindung liegt die Aufgabe zugrunde, einen Schwenkmotor der eingangs genannten Art zu schaffen, bei dem die vorgenannten Probleme vermieden sind. Gemäß der Erfindung wird diese Aufgabe durch die Merkmale des Patentanspruchs 1 gelöst.The invention aims to remedy this situation. The invention has for its object to provide a swivel motor of the type mentioned, in which the aforementioned problems are avoided. According to the invention, this object is solved by the features of claim 1.
Mit der Erfindung wird ein Schwingungserzeuger geschaffen, bei dem eine zuverlässige Einstellung des statischen Moments gewährleistet ist, sowie eine Beeinträchtigung des Getriebeöls vermieden ist. Durch den Betrieb des Schwenkmotors über eine Pumpe, die über eine Welle des Erregergetriebes betrieben ist, ist zum einen eine Entkopplung des Schwenkmotors vom Arbeitsbetrieb des Trägergerätes erzielt. Zum anderen ist bei einem Betrieb des Schwenkmotors mit Getriebeöl des Erregergetriebes eine Verunreinigung des Getriebeöls durch Leckagen des Schwenkmotors ausgeschlossen.With the invention, a vibration generator is provided in which a reliable adjustment of the static torque is ensured, and an impairment of the transmission oil is avoided. By the operation of the swivel motor via a pump which is operated via a shaft of the exciter transmission, a decoupling of the swivel motor from the working operation of the carrier device is achieved on the one hand. On the other hand, in an operation of the swivel motor with gear oil of the exciter gear impurity of the gear oil is excluded by leaks of the swivel motor.
In Weiterbildung der Erfindung ist die Pumpe zur Speisung des Schwenkmotors gleichzeitig die Schmierölpumpe des Erregergetriebes. Hierdurch ist eine Reduzierung der Bauteile sowie eine kompakte Ausführung des Schwingungserregers bewirkt. Der Schwenkmotor wird hierbei mit einem konstanten Öldruck versorgt, wobei der anliegende Druck hier deutlich höher ist, als beim Betrieb des Schwenkmotors über das Hydrauliksystem des Trägergerätes nach dem Stand der Technik. Hierdurch kann der Schwenkmotor kleiner dimensioniert werden.In a further development of the invention, the pump for feeding the swing motor at the same time the lubricating oil pump of the exciter transmission. As a result, a reduction of the components and a compact design of the vibration exciter is effected. The swivel motor is in this case supplied with a constant oil pressure, wherein the applied pressure is significantly higher here than during operation of the swivel motor via the hydraulic system of the carrier device according to the prior art. As a result, the pivot motor can be made smaller.
In Ausgestaltung der Erfindung ist die Schmierölpumpe des Erregergetriebes über eine Welle des Erregergetriebes betrieben. Hierdurch ist die für die zusätzliche Versorgung des Schwenkmotors erforderliche größere Dimensionierung der Pumpe bei gleichzeitig kompakter Bauweise erzielbar.In an embodiment of the invention, the lubricating oil pump of the exciter transmission is operated via a shaft of the exciter transmission. As a result, the required for the additional supply of the swing motor larger dimensions of the pump at the same time compact design can be achieved.
In weiterer Ausgestaltung der Erfindung weist der Schwenkmotor eine Drehdurchführung zur Fluidversorgung auf.In a further embodiment of the invention, the swivel motor on a rotary feedthrough for fluid supply.
In Weiterbildung der Erfindung ist in der Versorgungsleitung des Schwenkmotors ein Filter angeordnet. Hierdurch ist einer Beeinträchtigung des Schwenkmotors durch in dem Getriebeöl vorhandene Schmutzpartikel entgegengewirkt.In a further development of the invention, a filter is arranged in the supply line of the swivel motor. As a result, an impairment of the swing motor is counteracted by present in the transmission oil dirt particles.
In Ausgestaltung der Erfindung umfasst der Schwenkmotor eine Rotorwelle und ein Statorgehäuse, wobei Mittel zur Arretierung des Statorgehäuses mit der Rotorwelle angeordnet sind. Hierdurch ist im Arbeitsbetrieb des Schwingungserregers eine konstante Stellung der Unwuchten bei gleichzeitiger Entlastung des Versorgungssystems des Schwenkmotors erzielt. Die Pumpe zur Vorsorgung des Schwenkmotors muss nur dann gegen den Verstelldruck arbeiten, wenn der Schwenkmotor tatsächlich angesteuert wird.In an embodiment of the invention, the pivot motor comprises a rotor shaft and a stator housing, wherein means for locking the stator housing are arranged with the rotor shaft. As a result, a constant position of the imbalance while simultaneously relieving the supply system of the swing motor is achieved in the working mode of the vibrator. The pump for supplying the swivel motor only has to work against the adjustment pressure if the swivel motor is actually actuated.
Bevorzugt ist das Mittel zur Arretierung durch eine Federdruck-Lamellenbremse gebildet. Hierdurch ist eine kompakte Bauweise ermöglicht. Vorteilhaft ist das Mittel zur Arretierung hydraulisch betätigbar.Preferably, the locking means is formed by a spring-loaded multi-disc brake. This allows a compact design. Advantageously, the means for locking is hydraulically actuated.
In weiterer Ausgestaltung der Erfindung ist in der Zulaufleitung des Schwenkmotors ein Zulaufventil angeordnet, dass derart eingerichtet ist, dass die Zulaufleitung nur dann mit Druck beaufschlagt wird, wenn der Schwenkmotor angesteuert wird. Hierdurch ist eine Entlastung der Versorgungspumpe des Schwenkmotors bewirkt.In a further embodiment of the invention, an inlet valve is arranged in the feed line of the swivel motor, which is set up such that the supply line is pressurized only when the swivel motor is driven. As a result, a relief of the supply pump of the swing motor is effected.
Vorteilhaft ist eine Steuervorrichtung vorgesehen, die derart eingerichtet ist, dass bei Ansteuerung des Schwenkmotors gleichzeitig eine Deaktivierung der Arretierungsmittel erfolgt. Hierdurch ist eine Abstimmung zwischen Arretierungsmittel und Schwenkmotor ermöglicht.Advantageously, a control device is provided, which is set up in such a way that, when the swivel motor is actuated, deactivation of the locking means takes place at the same time. This allows a vote between locking and slewing motor.
Bevorzugt ist die Steuervorrichtung zusätzlich zur Steuerung des Zulaufventils eingerichtet, derart, dass das Zulaufventil dann auf Durchlauf geschaltet wird, wenn keine Ansteuerung des Schwenkmotors erfolgt.Preferably, the control device is set up in addition to the control of the inlet valve, such that the inlet valve is then switched to run when no control of the swing motor takes place.
Andere Weiterbildungen und Ausgestaltungen der Erfindung sind in den übrigen Unteransprüchen angegeben. Ein Ausführungsbeispiel der Erfindung ist in denOther developments and refinements of the invention are specified in the remaining subclaims. An embodiment of the invention is in the
Zeichnungen dargestellt und wird nachfolgend im Einzelnen beschrieben. Es zeigen:
- Figur 1
- die schematische Darstellung eines Schwingungserzeugers mit separater Versorgungspumpe des Schwenkmotors;
- Figur 2
- die schematische Darstellung eines Schwingungserzeugers mit nur einer Versorgungspumpe für Erregergetriebe und Schwenkmotor und
- Figur 3
- die schematische Darstellung eines Hydraulikschaltplans zum Be- trieb des Schwenkmotors mit Getriebeöl.
- FIG. 1
- the schematic representation of a vibration generator with separate supply pump of the swing motor;
- FIG. 2
- the schematic representation of a vibrator with only one supply pump for exciter and swing motor and
- FIG. 3
- the schematic representation of a hydraulic circuit diagram for operating the swing motor with gear oil.
Der als Ausführungsbeispiel gewählte Schwingungserzeuger ist als Erregergetriebe ausgebildet, im Wesentlichen bestehend aus einem Gehäuse, in dem zwei mit Zahnrädern versehene Wellen drehbar gelagert sind, sowie einem Schwenkmotor, dessen Rotorwelle mit Zahnrädern und dessen Staturgehäuse mit einem Zahnrad versehen ist. In Bezug auf die Ausgestaltung des Erregergetriebes wird auf die Ausführungen der
Das Erregergetriebe 1 ist zur Schmierung der drehenden Teile mit Getriebeöl mit einer Schmierpumpe 2 verbunden. Die Schmierpumpe 2 fördert das in einem Reservoirtank des Gehäuses des Erregergetriebes 1 befindliche Getriebeöl unter hohem Druck zu den entsprechenden Schmierstellen.The exciter 1 is connected to the lubrication of the rotating parts with gear oil with a lubricating pump 2. The lubricating pump 2 conveys the transmission oil located in a reservoir tank of the housing of the exciter transmission 1 under high pressure to the corresponding lubrication points.
Der in dem Erregergetriebe 1 angeordnete Schwenkmotor 3 ist über Zulaufleitungen 31 mit einer weiteren Versorgungspumpe 4 verbunden. Die Versorgungspumpe 4 fördert Getriebeöl aus dem Reservoirtank des Erregergetriebes 1 in die Arbeitskammern des Schwenkmotors 3. In den Zuleitungen 31 ist ein Zulaufventil 5 angeordnet, über das die Versorgung der Arbeitskammern des Schwenkmotors 3 steuerbar sind. Im Ausführungsbeispiel ist das Zulaufventil 5 ein 4-/3-Wegeventil. Das Zulaufventil ist über ein Steuermodul 6 steuerbar, mit dem das Zulaufventil 5 verbunden ist. Hierzu ist das als 4-/3-Wegeventil ausgebildete Zulaufventil 5 elektromagnetisch steuerbar ausgebildet.The arranged in the exciter 1 swing motor 3 is connected via
Die Zulaufleitungen 31 sind über eine Drehdurchführung 32 mit dem Schwenkmotor 3 verbunden. Dabei ist die Drehdurchführung 32 ohne zusätzliche Dichtungen an dem Schwenkmotor 3 angeordnet. Die hierdurch bedingte Leckage ist für den Betrieb des Schwingungserzeugers nicht von Bedeutung, da das austretende Getriebeöl zurück in das Reservoir des Gehäuses des Erregergetriebes 1 gelangt. Aufgrund der höheren Viskosität des Getriebeöls ist die Leckage der Drehdurchführung 32 gering, ebenso wie die innere Leckage des Schwenkmotors 3. Da die Leckage der Drehdurchführung 32 und des Schwenkmotors 3 sowie das aus dem Schwenkmotor 3 verdrängte Öl nicht mehr in die Leckölleitung fließen, wird diese entlastet, wodurch der Lecköldruck sinkt.The
Im Ausführungsbeispiel gemäß
Claims (12)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT09008359T ATE531462T1 (en) | 2009-06-26 | 2009-06-26 | VIBRATION EXCITER |
EP09008359A EP2266713B1 (en) | 2009-06-26 | 2009-06-26 | Oscillation exciter |
US12/802,329 US20100326222A1 (en) | 2009-06-26 | 2010-06-04 | Vibration exciter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09008359A EP2266713B1 (en) | 2009-06-26 | 2009-06-26 | Oscillation exciter |
Publications (2)
Publication Number | Publication Date |
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EP2266713A1 true EP2266713A1 (en) | 2010-12-29 |
EP2266713B1 EP2266713B1 (en) | 2011-11-02 |
Family
ID=41544638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09008359A Active EP2266713B1 (en) | 2009-06-26 | 2009-06-26 | Oscillation exciter |
Country Status (3)
Country | Link |
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US (1) | US20100326222A1 (en) |
EP (1) | EP2266713B1 (en) |
AT (1) | ATE531462T1 (en) |
Cited By (1)
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CN104324874A (en) * | 2014-09-03 | 2015-02-04 | 西安交通大学 | Alternating current servo motor straight-driven type end cam straight shaft vibration exciter |
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EP2669436B1 (en) * | 2012-05-30 | 2014-12-31 | ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH | Ramming and traction device |
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DE202007005383U1 (en) | 2007-04-12 | 2007-08-02 | Lin, Wei-Chih, Banchiao City | Food processor |
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DE202007003532U1 (en) * | 2007-03-07 | 2007-07-05 | Abi Gmbh | Vibrator, for a road surface tamping machine, has a rotary vane swing motor to adjust the relative positions of the out-of-balance masses |
EP2067533B2 (en) * | 2007-12-06 | 2016-12-07 | ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH | Vibrator for a vibratory pile driver |
EP2085148B1 (en) * | 2008-01-29 | 2013-09-18 | ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH | Vibrator for a vibratory pile driver |
-
2009
- 2009-06-26 EP EP09008359A patent/EP2266713B1/en active Active
- 2009-06-26 AT AT09008359T patent/ATE531462T1/en active
-
2010
- 2010-06-04 US US12/802,329 patent/US20100326222A1/en not_active Abandoned
Patent Citations (5)
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EP0251076A1 (en) * | 1986-06-27 | 1988-01-07 | Dynapac Light Equipment AB | Vibrating plate compactor |
DE3937644A1 (en) * | 1989-11-11 | 1991-05-16 | Bayerische Motoren Werke Ag | IC engine camshaft hydraulic rotary angle adjuster - has locking device securing vaned wheel in initial angular position w.r.t. sliding vane wheel |
US6504278B1 (en) * | 1998-05-08 | 2003-01-07 | Gedib Ingenieurburo Und Innovationsberatung Gmbh | Regulating device for adjusting the static moment resulting from unbalanced mass vibration generators |
DE202007005283U1 (en) | 2007-03-07 | 2007-07-12 | Abi Gmbh | vibration exciter |
DE202007005383U1 (en) | 2007-04-12 | 2007-08-02 | Lin, Wei-Chih, Banchiao City | Food processor |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104324874A (en) * | 2014-09-03 | 2015-02-04 | 西安交通大学 | Alternating current servo motor straight-driven type end cam straight shaft vibration exciter |
Also Published As
Publication number | Publication date |
---|---|
EP2266713B1 (en) | 2011-11-02 |
US20100326222A1 (en) | 2010-12-30 |
ATE531462T1 (en) | 2011-11-15 |
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