EP2657176B1 - Crane vehicle with detachable counterweight system - Google Patents
Crane vehicle with detachable counterweight system Download PDFInfo
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- EP2657176B1 EP2657176B1 EP13155179.8A EP13155179A EP2657176B1 EP 2657176 B1 EP2657176 B1 EP 2657176B1 EP 13155179 A EP13155179 A EP 13155179A EP 2657176 B1 EP2657176 B1 EP 2657176B1
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- EP
- European Patent Office
- Prior art keywords
- counterweight assembly
- accordance
- coupling rod
- turntable
- vehicle crane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
- B66C23/76—Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
Definitions
- the present invention relates to a vehicle crane, the counterweight assembly is coupled by means of a coupling device to the boom, so that the position of the counterweight assembly depends on the rocking position of the boom.
- a crane is known in which the boom is connected by means of a linkage fixed with a horizontally displaceable counterweight, so that a buckling or rocking of the boom each causes a horizontal displacement of the counterweight.
- the EP 1 990 306 A2 shows a mobile crane with a substantially horizontally movable counterweight arrangement.
- the position of the counterweight assembly is coupled with coupled coupling device fixed to the rocking angle of the boom, with decoupled coupling device, the position of the counterweight assembly remains unchanged with changing rocking angle. It can therefore be selected between a coupled state, which allows an increasingly larger counter-torque by the counterweights when dumping, and a decoupled state in which the position of the counterweight assembly remains fixed relative to the turntable and allows the use of the crane in tight spaces.
- decoupling should also be possible during crane operation, ie not only during setup.
- the coupling device according to the invention is thus a force transmission device between the boom and the counterweight assembly, which initiates outgoing pressure from the boom pressure forces in the counterweight assembly and initiates outgoing from the counterweight assembly pressure forces in the boom.
- the coupling device is designed to take up exclusively pressure forces from the boom and from the counterweight arrangement and to forward them to the counterweight arrangement or the boom.
- the movement of the counterweight arrangement is a horizontal or vertical, in particular a horizontal and vertical movement.
- a purely horizontal movement of the counterweight assembly only the moment is exerted which exerts the counterweight assembly against the cantilever torque on the turntable, while a purely vertical movement increases or decreases the potential or positional energy of the counterweight arrangement causes.
- the coupling device has a linkage with at least one coupling rod.
- a coupling rod is adapted to absorb compressive forces and thus to act as a power transmission between the boom and counterweight assembly.
- At least one coupling rod of the coupling device linkage is configured such that at least one force application of the coupling rod can be spaced apart from a complementary force application.
- a force attack is a point on the coupling rod to understand initiated on the forces in the coupling rod and / or can be discharged from it.
- the coupling rod force application is fork-shaped, so that, for example, a bolt-shaped complementary force attack can engage in the forked force attack.
- the coupling rod force attack bolt-shaped and the complementary force application is fork-shaped.
- the coupling device is configured such that a canting of the cantilever increases the horizontal distance between the counterweight assembly and the cantilever axis and / or increases the vertical position the counterweight arrangement causes.
- a canting of the cantilever increases the horizontal distance between the counterweight assembly and the cantilever axis and / or increases the vertical position the counterweight arrangement causes.
- a pivoting movement of the counterweight arrangement ie a combined rotational / translational movement of the counterweight arrangement, is particularly preferred. This can be achieved, for example, by hanging the counterweight assembly on the turntable.
- at least two pendulum supports are provided which engage, for example, on at least one at least partially projecting in a horizontal direction support arm.
- the movement of the at least one further coupling rod is guided during rocking of the boom relative to the turntable, in particular by means of at least one mounted on a turntable fixed bearing point guide support, in particular in the region of the complementary force application to the further coupling rod attacks.
- the further coupling rod is thus guided even in a decoupled configuration of the coupling linkage, wherein the guide post mounted on the turntable causes a defined movement of the coupling rod relative to the turntable. In this way, the defined movement of the coupler linkage is not affected by the decoupling.
- the counterweights are mounted at the rearmost end of the turntable in mobile cranes. Accordingly, a further preferred embodiment of the present invention provides for the coupling rod to be mounted on the counterweight arrangement with the spaced-apart force application and / or for the coupling rod to be mounted on the cantilever with the complementary force application or the guided coupling rod in front.
- the coupling rod to be mounted on the counterweight arrangement with the spaced-apart force application and / or for the coupling rod to be mounted on the cantilever with the complementary force application or the guided coupling rod in front.
- Another advantage is a lockable embodiment of the counterweight assembly in order to fix it positionally with decoupled coupling device relative to the turntable. In this way it is prevented that the counterweight arrangement changes its position unintentionally.
- different positions can be provided in which the counterweight assembly can be locked relative to the turntable. In this way, the position and thus also the counter-torque, for example, can also be varied during the use of the crane when the coupling device is coupled in, and then fixed in different positions as required for a decoupled coupling device.
- FIG. 1 is a turntable 1 of the vehicle crane according to the invention to see, with a boom 2 is mounted on a non-designated horizontal rocking axis on the turntable 1 and this is tiltable relative to the turntable 1.
- a counterweight assembly 3 can be seen, which Counterweight plates, a base plate and a stamp plate comprises, which in the FIG. 1 not to be designated.
- the base plate 13 can be seen with a lifting cylinder to the punch plate 14, wherein on the base plate 13, the non-designated counterweight plates are mounted.
- the coupling device 4 which comprises the coupling rods 5 and 6, wherein the coupling rod 5 rotatably mounted on the die plate 14 of the counterweight assembly 3 engages and with another, at the lower end of the boom rotatably mounted attacking coupling rod 6 is engaged.
- FIGS. 3 and 4 This can be the FIGS. 3 and 4 be taken particularly well, with the FIG. 3 the slipped and the FIG. 4 the extended state of the boom 2 shows.
- a guide support 12 is also seen, which acts in the region of the force attacks 7 and 8 of the coupling rods 5 and 6 on the coupling rod 6 and thus the two coupling rods 5 and 6 leads in the rocking movement of the boom 2.
- the movement of the coupling rod 6 can be seen through an unillustrated breakthrough in the turntable.
- FIGS. 3 and 4 also show the FIGS. 5 and 6 a on or istsippten state of the boom, but here in a decoupled Coupling 4.
- the coupling rod 5 By shifting the coupling rod 5 by lowering the punch plate 14 through the located between the base plate 13 and punch plate 14 lifting cylinder, the forked force attack 7 from the complementary bolt-shaped force application 8 of the coupling rod 6 can be "hung", with a guide the coupling rod 6 through the guide post 12 is still given.
- the counterweight assembly is moved to a locking position to prevent unwanted changes in position by crane movements with decoupled coupling device. Due to the decoupling no change in position of the counterweight assembly 3 is more effected by the cantilever rocking motion, but the coupling rod 6 can be moved freely through the coupling device 4 therethrough.
- FIG. 7 provides a view of the complete lever kinematics of the coupling device 4 without the turntable 1 and the boom 2.
- Two coupling rods 5 with forked force attacks 7 engage in the bolt-shaped force attacks 8 of the boom-side coupling rods 6, wherein two, arranged on both sides to the force attacks 7 and 8 Supports 12 ensure the leadership of the coupling rods 5 and 6 in the rocking movement of the boom 2.
Description
Die vorliegende Erfindung betrifft einen Fahrzeugkran, dessen Gegengewichtsanordnung mittels einer Koppelungseinrichtung an den Ausleger gekoppelt ist, so dass die Lage der Gegengewichtsanordnung von der Wippstellung des Auslegers abhängt.The present invention relates to a vehicle crane, the counterweight assembly is coupled by means of a coupling device to the boom, so that the position of the counterweight assembly depends on the rocking position of the boom.
Aus dem Stand der Technik ist bekannt, am Drehtisch von Fahrzeugkranen Gegengewichte anzuordnen, um dem von der Last am Ausleger auf den Drehtisch wirkenden Moment entgegenzuwirken und dieses zumindest zu verringern. Ferner sind aus dem Stand der Technik Fahrzeugkrane mit Gegengewichten bekannt, deren Lage relativ zum Drehtisch variiert werden kann, um verschiedenen Lastzuständen am Ausleger gerecht zu werden.From the prior art it is known to arrange counterweights on the turntable of vehicle cranes in order to counteract and at least reduce the moment acting on the rotary table by the load on the boom. Furthermore, known from the prior art vehicle cranes with counterweights whose position can be varied relative to the turntable to meet different load conditions on the boom.
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Es ist die Aufgabe der vorliegenden Erfindung, einen Fahrzeugkran bereitzustellen, bei dem zumindest einige der oben angesprochenen Probleme gelöst werden.It is the object of the present invention to provide a vehicle crane in which at least some of the above-mentioned problems are solved.
Diese Aufgabe wird durch den Gegenstand des unabhängigen Patentanspruchs 1 gelöst. Die abhängigen Patentansprüche 2 bis 15 bilden den erfindungsgemäßen Gegenstand vorteilhaft weiter.This object is solved by the subject matter of independent claim 1. The dependent claims 2 to 15 further advantageously form the subject of the invention.
Der Fahrzeugkran gemäß der vorliegenden Erfindung umfasst:
- ein Fahrgestell;
- einen auf dem Fahrgestell drehbar gelagerten Drehtisch;
- einen am Drehtisch gelagerten und um eine horizontale Achse wippbaren Ausleger;
- eine am Drehtisch gelagerte Gegengewichtsanordnung, die relativ zum Drehtisch beweglich ist; und
- eine die Lage der Gegengewichtsanordnung mechanisch an den Wippwinkel des Auslegers koppelnde Koppelungseinrichtung,
- wobei die Koppelungseinrichtung entkoppelbar ist und ausgestaltet ist, ausschließlich Druckkräfte vom Ausleger (2) aufzunehmen und an die Gegengewichtsanordnung (3) weiterzuleiten und ausschließlich Druckkräfte von der Gegengewichtsanordnung (3) aufzunehmen und an den Ausleger (2) weiterzuleiten.
- a chassis;
- a turntable rotatably mounted on the chassis;
- a boom mounted on the turntable and tiltable about a horizontal axis;
- a turntable mounted counterweight assembly that is movable relative to the turntable; and
- a coupling device mechanically coupling the position of the counterweight assembly to the rocking angle of the boom;
- wherein the coupling device is decoupled and is configured to take only compressive forces from the boom (2) and forward to the counterweight assembly (3) and only absorb pressure forces from the counterweight assembly (3) and forward to the boom (2).
Mit anderen Worten wird die Lage der Gegengewichtsanordnung bei eingekoppelter Koppelungseinrichtung fest an den Wippwinkel des Auslegers gekoppelt, wobei bei entkoppelter Koppelungseinrichtung die Lage der Gegengewichtsanordnung bei sich veränderndem Wippwinkel unverändert bleibt. Es kann also zwischen einem eingekoppelten Zustand gewählt werden, welcher beim Auswippen ein zunehmend größeres Gegenmoment durch die Gegengewichte ermöglicht, und einem ausgekoppelten Zustand, bei dem die Lage der Gegengewichtsanordnung relativ zum Drehtisch fest bleibt und der den Einsatz des Krans bei beengten Platzverhältnissen ermöglicht. Eine Entkoppelung soll gemäß einer bevorzugten Ausführungsform auch während des Kranbetriebs möglich sein, also nicht nur während des Rüstens.In other words, the position of the counterweight assembly is coupled with coupled coupling device fixed to the rocking angle of the boom, with decoupled coupling device, the position of the counterweight assembly remains unchanged with changing rocking angle. It can therefore be selected between a coupled state, which allows an increasingly larger counter-torque by the counterweights when dumping, and a decoupled state in which the position of the counterweight assembly remains fixed relative to the turntable and allows the use of the crane in tight spaces. In accordance with a preferred embodiment, decoupling should also be possible during crane operation, ie not only during setup.
Der hier verwendete Begriff "mechanische Koppelung" soll zum Ausdruck bringen, dass gemäß der vorliegenden Erfindung die Lage der Gegengewichtsanordnung direkt, also rein anhand physikalischer Wechselwirkung zwischen Ausleger und Gegengewichtsanordnung vom Wippwinkel des Auslegers abhängig gemacht wird. Eine separate Steuerung der Lage der Gegengewichtsanordnung, beispielsweise mittels eines Computers, samt Sensorik für den Wippwinkel des Auslegers ist somit nicht notwendig, was die Ausfallwahrscheinlichkeit der Koppelungseinrichtung erheblich verringert.The term "mechanical coupling" used here is intended to express that according to the present invention, the position of the counterweight assembly directly, so purely on the basis of physical interaction between the boom and counterweight assembly is made dependent on the luffing angle of the boom. A separate control of the position of the counterweight assembly, for example by means of a computer, including sensors for the rocking angle of the boom is thus not necessary, which significantly reduces the probability of failure of the coupling device.
Grundsätzlich denkbar sind für eine mechanische Koppelung sämtliche Einrichtungen, welche es gestatten, die für die Bewegung der Gegengewichtsanordnung erforderliche Kraft vom Ausleger ausgehend in die Gegengewichtsanordnung einzuleiten und umgekehrt. Mit anderen Worten handelt es sich bei der erfindungsgemäßen Koppelungseinrichtung also um eine Kraftübertragungseinrichtung zwischen dem Ausleger und der Gegengewichtsanordnung, die vom Ausleger ausgehende Druckkräfte in die Gegengewichtsanordnung einleitet und von der Gegengewichtsanordnung ausgehende Druckkräfte in den Ausleger einleitet.In principle, all devices which allow the force required for the movement of the counterweight arrangement to be initiated from the jib into the counterweight arrangement and vice versa are conceivable for a mechanical coupling. In other words, in the coupling device according to the invention is thus a force transmission device between the boom and the counterweight assembly, which initiates outgoing pressure from the boom pressure forces in the counterweight assembly and initiates outgoing from the counterweight assembly pressure forces in the boom.
Erfindungsgemäß ist die Koppelungseinrichtung ausgestaltet, ausschließlich Druckkräfte vom Ausleger und von der Gegengewichtsanordnung aufzunehmen und an die Gegengewichtsanordnung bzw. den Ausleger weiterzuleiten.According to the invention, the coupling device is designed to take up exclusively pressure forces from the boom and from the counterweight arrangement and to forward them to the counterweight arrangement or the boom.
Um diese Aufgabe zu erfüllen, ist auch eine hydraulische Koppelung, welche Kräfte zwischen dem Ausleger und der Gegengewichtsanordnung überträgt vorstellbar. Entgegen dem Stand der Technik werden die erforderlichen Kräfte bzw. Drücke also nicht mittels Hydraulikpumpen erzeugt, sondern direkt durch die Gegengewichtsanordnung und den Ausleger, beispielsweise durch deren auf Kolben wirkende Gewichtskraft.To accomplish this task, a hydraulic coupling, which transmits forces between the boom and the counterweight assembly is conceivable. Contrary to the prior art, the required forces or pressures are thus not generated by means of hydraulic pumps, but directly through the counterweight assembly and the boom, for example, by their force acting on the piston weight.
Gemäß einer weiteren bevorzugten Ausführungsform ist die Bewegung der Gegengewichtsanordnung eine horizontale oder vertikale, insbesondere eine horizontale und vertikale Bewegung. Bei einer rein horizontalen Bewegung der Gegengewichtsanordnung wird lediglich das Moment variiert, welches die Gegengewichtsanordnung entgegen dem Auslegermoment auf den Drehtisch ausübt, während eine rein vertikale Bewegung eine Zu- oder Abnahme der potenziellen bzw. Lageenergie der Gegengewichtsanordnung bewirkt. Im zweiteren Falle ist es also möglich, die zum Heben der Gegengewichtsanordnung aufgebrachte Energie wieder zurückzugewinnen und beispielsweise für das Einwippen des Auslegers zu verwenden, so dass ein Teil der Kraft zum Einwippen des Auslegers eingespart werden kann, welcher von den dafür vorgesehenen Hydraulikmotoren aufgebracht werden müsste.According to a further preferred embodiment, the movement of the counterweight arrangement is a horizontal or vertical, in particular a horizontal and vertical movement. In a purely horizontal movement of the counterweight assembly, only the moment is exerted which exerts the counterweight assembly against the cantilever torque on the turntable, while a purely vertical movement increases or decreases the potential or positional energy of the counterweight arrangement causes. In the second case, it is thus possible to recover the energy applied for lifting the counterweight arrangement and to use it, for example, for rocking in the boom, so that a part of the force for rocking in the boom can be saved, which would have to be applied by the hydraulic motors provided for this purpose ,
Eine solche Ausgestaltung bringt den weiteren Vorteil einer Energieeinsparung mit sich, wobei gegebenenfalls sogar die Einrichtungen, die zum Wippen des Auslegers erforderlich sind, kleiner und somit leichter dimensioniert werden können. Dies hat wiederum ein geringeres Eigengewicht des Krans und somit eine weitere Erhöhung des Verhältnisses Tragfähigkeit/Eigengewicht zur Folge.Such a configuration brings with it the further advantage of saving energy, with possibly even the facilities required for rocking the boom to be smaller and thus lighter in size. This in turn has a lower dead weight of the crane and thus a further increase in the ratio load capacity / weight result.
Gemäß einer besonders bevorzugten Ausführungsform der vorliegenden Erfindung weist die Koppelungseinrichtung ein Gestänge mit zumindest einer Koppelstange auf. Eine solche Koppelstange ist dazu geeignet, Druckkräfte aufzunehmen und so als Kraftübertragung zwischen Ausleger und Gegengewichtsanordnung zu fungieren.According to a particularly preferred embodiment of the present invention, the coupling device has a linkage with at least one coupling rod. Such a coupling rod is adapted to absorb compressive forces and thus to act as a power transmission between the boom and counterweight assembly.
Gemäß einer weiteren bevorzugten Ausführungsform der vorliegenden Erfindung ist zumindest eine Koppelstange des Koppelungseinrichtungs-Gestänges so ausgestaltet, dass zumindest ein Kraftangriff der Koppelstange von einem komplementären Kraftangriff beabstandbar ist. Unter einem Kraftangriff ist eine Stelle an der Koppelstange zu verstehen, an der Kräfte in die Koppelstange eingeleitet und/oder aus ihr ausgeleitet werden können. Durch die Beabstandung des Koppelstangen-Kraftangriffs von einem komplementären Kraftangriff, also einem Kraftangriff, der ansonsten mit dem Koppelstangen-Kraftangriff in Verbindung steht, wird die Entkoppelung der Koppelungseinrichtung bewirkt, da nun keine Kräfte mehr zwischen den komplementären Kraftangriffen übertragen werden.In accordance with a further preferred embodiment of the present invention, at least one coupling rod of the coupling device linkage is configured such that at least one force application of the coupling rod can be spaced apart from a complementary force application. Under a force attack is a point on the coupling rod to understand initiated on the forces in the coupling rod and / or can be discharged from it. By the spacing of the coupling rod force attack of a complementary force attack, ie a force attack, which is otherwise associated with the coupling rod force attack, the decoupling of the coupling device is effected, since now no more forces are transmitted between the complementary force attacks.
Grundsätzlich wäre es denkbar, durch Verringerung der axialen Erstreckung einer Koppelstange, beispielsweise über einen Gewindeeingriff von zwei Koppelstangenteilen, die entlang der Längsachse der Koppelstange ineinander eingeschraubt sind, eine Beabstandung komplementärer Kraftangriffe zu bewirken, besonders bevorzugt wird gemäß einer weiteren Ausführungsform jedoch eine Rotation bzw. ein Verschwenken der Koppelstange um einen weiteren Kraftangriff der Koppelstange. Mit anderen Worten wird die Koppelstange hierdurch verschwenkt und "ausgehängt". Alternativ oder zusätzlich könnte die Koppelstange angehoben oder abgesenkt werden, beispielsweise durch Absenken oder Anheben ihres Kraftangriffs, welcher an einer Stempelplatte der Gegengewichtsanordnung angeordnet sein kann, um eine Beabstandung der komplementären Kraftangriffe zu bewirken.In principle, it would be conceivable, by reducing the axial extension of a coupling rod, for example via a threaded engagement of two coupling rod parts, which along the longitudinal axis of the coupling rod into one another are screwed to cause a spacing of complementary force attacks, particularly preferred according to a further embodiment, however, a rotation or pivoting of the coupling rod to a further force application of the coupling rod. In other words, the coupling rod is thereby pivoted and "unhooked". Alternatively or additionally, the coupling rod could be raised or lowered, for example, by lowering or raising its force application, which may be arranged on a stamp plate of the counterweight assembly to effect a spacing of the complementary force attacks.
Für eine möglichst einfache und unkomplizierte Beabstandung der komplementären Kraftangriffe ist gemäß einer weiteren bevorzugten Ausführungsform der Koppelstangen-Kraftangriff gabelförmig ausgestaltet, so dass ein beispielsweise bolzenförmiger komplementärer Kraftangriff in den gabelförmigen Kraftangriff eingreifen kann. Es ist jedoch ebenso denkbar, dass der Koppelstangen-Kraftangriff bolzenförmig und der komplementäre Kraftangriff gabelförmig ausgestaltet ist.For a simple and uncomplicated spacing of the complementary force attacks according to a further preferred embodiment of the coupling rod force application is fork-shaped, so that, for example, a bolt-shaped complementary force attack can engage in the forked force attack. However, it is also conceivable that the coupling rod force attack bolt-shaped and the complementary force application is fork-shaped.
Um die weiter oben schon angesprochenen Vorteile der vorliegenden Erfindung zu nutzen, ist gemäß einer besonders bevorzugten Ausführungsform die Koppelungseinrichtung so ausgestaltet, dass ein Auswippen des Auslegers eine Vergrößerung des horizontalen Abstands zwischen der Gegengewichtsanordnung und der Ausleger-Wippachse und/oder eine Erhöhung der vertikalen Lage der Gegengewichtsanordnung bewirkt. Auf diese Weise wird erreicht, dass beim Auswippen des Auslegers das durch die Gegengewichte hervorgerufene Gegenmoment erhöht und/oder die beim Auswippen frei werdende potenzielle Energie des Auslegers durch Erhöhung der Lage der Gegengewichte "zwischengespeichert" wird und so für ein späteres Einwippen des Auslegers wieder zur Verfügung steht. Besonders bevorzugt wird eine Kombination aus der Vergrößerung des horizontalen Abstandes zur Ausleger-Wippachse und der Erhöhung der vertikalen Lage der Gegengewichtsanordnung.In order to utilize the above-mentioned advantages of the present invention, according to a particularly preferred embodiment, the coupling device is configured such that a canting of the cantilever increases the horizontal distance between the counterweight assembly and the cantilever axis and / or increases the vertical position the counterweight arrangement causes. In this way, it is achieved that when the boom is released, the counter-torque caused by the counterweights increases and / or released during release potential energy of the boom is "cached" by increasing the position of the counterweights and so for a later luffing the boom back to Available. Particularly preferred is a combination of the increase of the horizontal distance to the boom rocking axis and the increase of the vertical position of the counterweight assembly.
Besonders bevorzugt wird ferner eine Schwenkbewegung der Gegengewichtsanordnung, also eine kombinierte rotatorische/translatorische Bewegung der Gegengewichtsanordnung. Dies kann beispielsweise erreicht werden, indem die Gegengewichtsanordnung am Drehtisch hängend gelagert ist. Hierfür können beispielsweise zumindest zwei Pendelstützen vorgesehen werden, die beispielsweise an zumindest einem zumindest teilweise in einer horizontalen Richtung auskragenden Tragarm angreifen.Furthermore, a pivoting movement of the counterweight arrangement, ie a combined rotational / translational movement of the counterweight arrangement, is particularly preferred. This can be achieved, for example, by hanging the counterweight assembly on the turntable. For this purpose, for example, at least two pendulum supports are provided which engage, for example, on at least one at least partially projecting in a horizontal direction support arm.
Es ist zwar grundsätzlich vorstellbar, dass der Kraftangriff der Koppelstange direkt am Ausleger oder an der Gegengewichtsanordnung angreift, der komplementäre Kraftangriff also direkt am Ausleger oder an der Gegengewichtsanordnung ausgebildet ist, allerdings wird eine weitere Koppelstange bevorzugt, an welcher der komplementäre Kraftangriff ausgebildet ist. Zwischen der Gegengewichtsanordnung und dem Ausleger sind also zumindest zwei Koppelstangen in Reihe geschalten.Although it is in principle conceivable that the force application of the coupling rod acts directly on the boom or on the counterweight assembly, the complementary force attack is thus formed directly on the boom or on the counterweight assembly, however, a further coupling rod is preferred on which the complementary force application is formed. Between the counterweight assembly and the boom so at least two coupling rods are connected in series.
Dabei ist es von besonderem Vorteil, wenn die Bewegung der zumindest einen weiteren Koppelstange beim Wippen des Auslegers relativ zum Drehtisch geführt ist, insbesondere mittels zumindest einer an einem zum Drehtisch festen Lagerpunkt gelagerten Führungsstütze, die im Speziellen im Bereich des komplementären Kraftangriffs an der weiteren Koppelstange angreift. Mit anderen Worten wird die weitere Koppelstange also selbst bei einer entkoppelten Konfiguration des Koppelungseinrichtungs-Gestänges geführt, wobei die am Drehtisch gelagerte Führungsstütze eine definierte Bewegung der Koppelstange relativ zum Drehtisch bewirkt. Auf diese Weise wird die definierte Bewegung des Koppelungseinrichtungs-Gestänges durch die Entkoppelung nicht beeinflusst.It is particularly advantageous if the movement of the at least one further coupling rod is guided during rocking of the boom relative to the turntable, in particular by means of at least one mounted on a turntable fixed bearing point guide support, in particular in the region of the complementary force application to the further coupling rod attacks. In other words, the further coupling rod is thus guided even in a decoupled configuration of the coupling linkage, wherein the guide post mounted on the turntable causes a defined movement of the coupling rod relative to the turntable. In this way, the defined movement of the coupler linkage is not affected by the decoupling.
Gewöhnlicherweise sind bei Fahrzeugkranen die Gegengewichte am hintersten Ende des Drehtischs gelagert. Eine weitere bevorzugte Ausführungsform der vorliegenden Erfindung sieht demnach die Koppelstange mit dem beabstandbaren Kraftangriff an der Gegengewichtsanordnung gelagert und/oder die Koppelstange mit dem komplementären Kraftangriff bzw. die geführte Koppelstange am Ausleger gelagert vor. Somit wird eine einfachere Entkoppelung am hinteren Ende des Drehtischs ermöglicht, wobei grundsätzlich auch die umgekehrte Ausgestaltung vorstellbar ist.Usually the counterweights are mounted at the rearmost end of the turntable in mobile cranes. Accordingly, a further preferred embodiment of the present invention provides for the coupling rod to be mounted on the counterweight arrangement with the spaced-apart force application and / or for the coupling rod to be mounted on the cantilever with the complementary force application or the guided coupling rod in front. Thus, a simpler decoupling at the rear end of the turntable is possible, in principle, the reverse embodiment is conceivable.
Von weiterem Vorteil ist eine arretierbare Ausgestaltung der Gegengewichtsanordnung, um diese bei entkoppelter Koppelungseinrichtung relativ zum Drehtisch positionell zu fixieren. Auf diese Weise wird verhindert, dass die Gegengewichtsanordnung ihre Lage ungewollt verändert. Vorteilhaft können unterschiedliche Stellungen vorgesehen werden, in denen die Gegengewichtsanordnung relativ zum Drehtisch arretiert werden kann. Auf diese Weise kann die Lage und somit auch das Gegenmoment beispielsweise auch während des Kraneinsatzes bei eingekoppelter Koppelungseinrichtung variiert und dann in je nach Bedarf unterschiedlichen Positionen bei entkoppelter Koppelungseinrichtung fixiert werden.Another advantage is a lockable embodiment of the counterweight assembly in order to fix it positionally with decoupled coupling device relative to the turntable. In this way it is prevented that the counterweight arrangement changes its position unintentionally. Advantageously, different positions can be provided in which the counterweight assembly can be locked relative to the turntable. In this way, the position and thus also the counter-torque, for example, can also be varied during the use of the crane when the coupling device is coupled in, and then fixed in different positions as required for a decoupled coupling device.
Die Erfindung wird im Folgenden anhand einer bevorzugten Ausführungsform näher beschrieben. Sie kann alle hierin beschriebenen Merkmale einzeln sowie in jedweder sinnvollen Kombination umfassen. In den beiliegenden Figuren zeigen:
- Figur 1
- einen Fahrzeugkran-Drehtisch mit der erfindungsgemäßen Gegengewichtsanordnung,
Figur 2- den Drehtisch aus
Figur 1 in einem vertikalen Längsschnitt, - Figur 3/4
- den
Drehtisch aus Figur 2 im eingewippten/ausgewippten Zustand bei eingekoppelter Koppelungseinrichtung, Figur 5/6- den
Drehtisch aus Figur 2 im eingewippten/ausgewippten Zustand bei ausgekoppelter Koppelungseinrichtung, - Figur 7
- das Koppelungseinrichtungs-Gestänge ohne den Drehtisch.
- FIG. 1
- a vehicle crane turntable with the counterweight arrangement according to the invention,
- FIG. 2
- turn off the turntable
FIG. 1 in a vertical longitudinal section, - Figure 3/4
- turn off the turntable
FIG. 2 in the flipped / dumped state with coupling device coupled in, - Figure 5/6
- turn off the turntable
FIG. 2 in the flipped-in / flipped-out state with coupled-out coupling device, - FIG. 7
- the coupler linkage without the turntable.
In der
Im vertikalen Längsschnitt des Drehtischs in der
Dies kann den
Wie schon zuvor die
Die
Claims (14)
- A vehicle crane, comprising:- a bogie;- a turntable (1) which is rotatably mounted on the bogie;- a jib (2) which is mounted on the turntable (1) and can be tilted about a horizontal axis;- a counterweight assembly (3) which is mounted on the turntable (1) and can be moved relative to the turntable (1); and- a coupling means (4) which mechanically couples the position of the counterweight assembly (3) to the tilt angle of the jib (2),
characterised in that the coupling means (4) can be decoupled and is embodied to receive only pressure forces from the jib (2) and relay them to the counterweight assembly (3) and to receive only pressure forces from the counterweight assembly (3) and relay them to the jib (2). - The vehicle crane in accordance with claim 1, wherein the movement of the counterweight assembly (3) is a horizontal or vertical movement, in particular a horizontal and vertical movement.
- The vehicle crane in accordance with any one of claims 1 or 2, wherein the coupling means (4) comprises a linkage comprising at least one coupling rod (5, 6).
- The vehicle crane in accordance with claim 3, wherein at least one coupling rod (5) is embodied such that at least one force contact (7) of the coupling rod (5) can be spaced from a complementary force contact (8).
- The vehicle crane in accordance with claim 4, wherein the force contacts are spaced by rotating the coupling rod (5) about an additional force contact (9) of the coupling rod (5) or shifting the coupling rod (5) by lowering the prop plate (14) of the counterweight assembly (3).
- The vehicle crane in accordance with claim 4 or 5, wherein the force contact (7) which can be spaced is embodied in the shape of a fork, in order to allow the complementary force contact (8) to engage.
- The vehicle crane in accordance with any one of claims 1 to 6, wherein the coupling means (4) is embodied such that tilting the jib (2) out increases the horizontal distance between the counterweight assembly (3) and the tilt axis of the jib and/or raises the vertical position of the counterweight assembly (3).
- The vehicle crane in accordance with any one of claims 1 to 7, wherein the movement of the counterweight assembly (3) is a pivoting movement.
- The vehicle crane in accordance with any one of claims 1 to 8, wherein the counterweight assembly (3) is mounted suspended on the turntable (1).
- The vehicle crane in accordance with claim 9, wherein the counterweight assembly (3) is mounted by means of at least two pendulum supports (10) which in particular act on at least one bearing arm (11) which projects at least partially in a horizontal direction.
- The vehicle crane in accordance with any one of claims 4 to 10, comprising at least one additional coupling rod (6) on which the complementary force contact (8) is formed.
- The vehicle crane in accordance with claim 11, wherein the movement of the at least one additional coupling rod (6) when the jib (2) is tilted relative to the turntable (1) is guided, in particular by means of at least one guide support (12) which is mounted on a bearing point which is fixed with respect to the turntable (1), wherein the guide support acts on the additional coupling rod (6), specifically in the region of the complementary force contact (8).
- The vehicle crane in accordance with any one of claims 4 to 12, wherein the coupling rod (5) comprising the force contact (7) which can be spaced is mounted on the counterweight assembly (3) and/or the guided coupling rod (6) is mounted on the jib (2).
- The vehicle crane in accordance with any one of claims 1 to 13, wherein the counterweight assembly (3) is embodied to be locked in position relative to the turntable (1), in particular in different positions.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012006494.2A DE102012006494B4 (en) | 2012-03-30 | 2012-03-30 | Mobile crane with decoupling counterweight arrangement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2657176A1 EP2657176A1 (en) | 2013-10-30 |
EP2657176B1 true EP2657176B1 (en) | 2015-07-08 |
Family
ID=47710003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13155179.8A Active EP2657176B1 (en) | 2012-03-30 | 2013-02-14 | Crane vehicle with detachable counterweight system |
Country Status (9)
Country | Link |
---|---|
US (1) | US9440824B2 (en) |
EP (1) | EP2657176B1 (en) |
JP (1) | JP5750467B2 (en) |
KR (1) | KR20130111323A (en) |
CN (1) | CN103359635B (en) |
BR (1) | BR102013006026A2 (en) |
CA (1) | CA2805936A1 (en) |
DE (1) | DE102012006494B4 (en) |
ES (1) | ES2546894T3 (en) |
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DE102011118926B3 (en) * | 2011-11-21 | 2013-05-16 | Wolffkran Holding Ag | Counterweight fixation |
US9341028B2 (en) * | 2013-02-15 | 2016-05-17 | Black Hawk Energy Services Ltd. | Counterweight assembly for a self-propelled derrick rig assembly |
US9238945B2 (en) | 2013-02-15 | 2016-01-19 | Black Hawk Energy Services, Inc. | Base beam and self-propelled derrick rig assembly |
CN103771301A (en) * | 2013-12-31 | 2014-05-07 | 江苏南铸科技股份有限公司 | Forklift balance weight |
CN104828714B (en) * | 2014-12-19 | 2017-06-06 | 北汽福田汽车股份有限公司 | For the balance weight mechanism of engineering machinery |
NO2694425T3 (en) | 2015-01-28 | 2018-04-28 | ||
DE102015006439B4 (en) | 2015-03-24 | 2023-08-31 | Liebherr-Werk Ehingen Gmbh | mobile crane |
US10544012B2 (en) | 2016-01-29 | 2020-01-28 | Manitowoc Crane Companies, Llc | Visual outrigger monitoring system |
US11130658B2 (en) * | 2016-11-22 | 2021-09-28 | Manitowoc Crane Companies, Llc | Optical detection and analysis of a counterweight assembly on a crane |
JP7039200B2 (en) * | 2017-07-10 | 2022-03-22 | 株式会社加藤製作所 | Split counterweight |
CN108328494A (en) * | 2018-04-08 | 2018-07-27 | 苏州库力铁重工有限公司 | Rollover-resistant mechanism for crane |
DE102019123313B4 (en) * | 2019-08-30 | 2023-01-26 | Manitowoc Crane Group France Sas | MOBILE CRANE WITH VARIABLE COUNTERWEIGHT |
CN112661036B (en) * | 2021-03-22 | 2021-05-28 | 湖南工业职业技术学院 | Automobile crane and using method thereof |
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- 2013-02-14 ES ES13155179.8T patent/ES2546894T3/en active Active
- 2013-02-15 CA CA2805936A patent/CA2805936A1/en not_active Abandoned
- 2013-03-04 JP JP2013041854A patent/JP5750467B2/en active Active
- 2013-03-13 BR BRBR102013006026-7A patent/BR102013006026A2/en not_active IP Right Cessation
- 2013-03-20 KR KR1020130029805A patent/KR20130111323A/en not_active Application Discontinuation
- 2013-03-22 CN CN201310093024.1A patent/CN103359635B/en active Active
- 2013-03-28 US US13/852,378 patent/US9440824B2/en active Active
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Also Published As
Publication number | Publication date |
---|---|
JP2013212929A (en) | 2013-10-17 |
DE102012006494B4 (en) | 2014-03-13 |
CN103359635B (en) | 2016-01-06 |
CA2805936A1 (en) | 2013-09-30 |
BR102013006026A2 (en) | 2015-06-02 |
US20130270209A1 (en) | 2013-10-17 |
CN103359635A (en) | 2013-10-23 |
JP5750467B2 (en) | 2015-07-22 |
EP2657176A1 (en) | 2013-10-30 |
DE102012006494A1 (en) | 2013-10-02 |
ES2546894T3 (en) | 2015-09-29 |
KR20130111323A (en) | 2013-10-10 |
US9440824B2 (en) | 2016-09-13 |
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