EP2423147A1 - Assembly for rotating a load - Google Patents
Assembly for rotating a load Download PDFInfo
- Publication number
- EP2423147A1 EP2423147A1 EP11176819A EP11176819A EP2423147A1 EP 2423147 A1 EP2423147 A1 EP 2423147A1 EP 11176819 A EP11176819 A EP 11176819A EP 11176819 A EP11176819 A EP 11176819A EP 2423147 A1 EP2423147 A1 EP 2423147A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- load
- chassis
- hoist
- support means
- arrangement according
- 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.)
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Classifications
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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
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
- B66C13/085—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions electrical
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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
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
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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
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
- B66C17/06—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes
- B66C17/12—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes for handling workpieces, e.g. ingots, which require to be supported temporarily within, or withdrawn from, a treatment chamber, e.g. tong cranes, soaking-pit cranes, stripper cranes
Definitions
- the invention relates to an arrangement for turning a load, with a supported by a trolley and movable along a rail hoist, of which a first support means can be raised and lowered with a first load hook, and with an at least height adjustable second support means with a second load hook.
- the invention By turning a load in its widest sense, the invention means any change in the starting position of a load suspended on a hoist, which can be achieved by turning the same load in the raised state, the term "turning" also being intended to describe incomplete turns of the load ,
- suspension means the invention firmly associated with the hoist ropes and chains for holding the load, possibly including including connected to the hoisting rope or a lifting chain of a hoist load-receiving means, such as a load hook.
- a hoist usually has a hoist, which allows lifting and lowering of the load and consists essentially of the lifting drive, a transmission and a braking device.
- German patent DE 40 12 381 C2 describes an overhead crane with a two-rail cat used in a foundry for transporting and emptying heavy ladles.
- the overhead crane is set up to turn loads.
- two simultaneously or independently operated hoists are arranged on the two-rail cat of the gantry crane, each having a support cable with load hooks.
- Each of the load hooks is with one of the two opposing attachment points on the load connectable.
- the lifting device consists of two portals, on each of which a hoist is suspended and each having two vertical supports. At the lower ends of the supports portal feet are arranged in which support rollers are resiliently mounted.
- the gantries can only be moved in a load-free condition, whereby the gantries are supported exclusively by the support rollers on the floor. In an operating state in which the hoists are subjected to a load, the portals lower over the spring-loaded support of the support rollers until the soleplates of the portal feet come to rest on the floor.
- the invention has for its object to find a simple, compact and cost-effective arrangement for reversing hanging loads, can be turned safely with the heavy cumbersome loads.
- a first suspension means can be raised and lowered by a first load hook
- a second suspension means with a second load hook
- simple, compact and inexpensive design achieved in that the second support means is suspended from a chassis which is movable along the rail and is designed such that the chassis is supported in a load-free driving position on its wheels on the rail and in an operating position Lowered with load on the rail and relieves the wheels.
- a load hook means any type of fastening means with which a load can be fastened to a suspension element.
- the invention is characterized in that use without a complex, expensive and heavy second trolley, a second separate chassis is provided, on which the intended for the turning process second suspension means is suspended.
- the peculiarity of the chassis according to the invention is that, when picking up the load, the chassis settles on the rail, so that the high weight forces of the load are not punctiform transmitted via the wheels to the rail, but linear as a line load; As a result, the chassis can be carried out very easily overall, which is the overall benefit of the lifting capacity of the crane. Also reduce the mechanical stresses in the rail of the longitudinal member considerably. This also low wheelbase of the wheels of the chassis is possible. Also smaller wheel diameters are possible. Overall, the suspension is therefore particularly short and easy to build. A retrofit of existing gantry cranes for turning loads is easily possible and in most cases requires no new static calculations due to the low weight of the additional components. The low energy consumption of the additional chassis perfectly matches the increasingly required "green strategy".
- the wheels are mounted on a chassis frame of the chassis are mounted on the chassis frame suspension elements via the spring elements, which are movable relative to the chassis frame by the load from the driving position to the operating position and where the second support means attacks ,
- suspension parts have a suspension flange, which rests flat in the operating position of the chassis on the rail. This fully utilizes the load to decelerate the landing gear in the operating position.
- the chassis is connected via a coupling rod with the crane trolley and the chassis is unpowered.
- the chassis used weight which the load capacity of the support crane comes to good.
- the suspension is formed without a drive and dragged along by the crane.
- the chassis has its own drive.
- Structurally particularly advantageous is that on the chassis a hoist is suspended, the hoist is designed as a chain hoist and the second support means is a chain.
- a load can advantageously be turned.
- the load is suspended at a first attachment point on the first load hook and at a second stop point spaced from the first attachment point on the second load hook and the load combined via relative movements of the first load hook to the second load hook a rotational movement of the load hanging on the first or second suspension means around the first or second suspension means is reversible, the second suspension means with the second load hook exclusively for Holding the load is designed and necessary for turning the load lifting and lowering of the load is done exclusively via the hoist with the first support means and the first load hook.
- the hoist is designed for a performance and a static load capacity, which is required for load-free height adjustment of the second support means with the second load hook and any necessary stop means and for holding the load at a desired height is designed. Therefore, the rotational movement for the load turning occurs only around the second parting agent.
- At least one sensor is attached to the chassis, via which the operating position can be seen and a signal from the sensor, the hoist is locked in its load holding function.
- a brake of the hoist or the pawl of the hoist is released or unlocked, as long as a load still depends on the hoist.
- FIG. 1 is schematically illustrated an overhead crane 1, which is designed as a single-carrier overhead crane.
- the overhead crane 1 has in the usual way a horizontally extending side member 2, on which a trolley 3 is movable in the horizontal direction.
- the trolley 3 is provided with wheels 4, which are movable along the longitudinal rail 2 serving as a rail 5.
- the trolley 3, a hoist 6, with a trained in particular as a rope first Supporting means 7 via a first load hook 8 a load 9 is suspended and lowered suspended.
- the particular limp support means 7 may be formed not only in the form of ropes but also in the form of chains or straps.
- the load 9 is shown only schematically as a cuboid object and has centrally on its upper side surface a first attachment point a in the form of a tab.
- a second attachment point b is provided centrally on its right side surface. Further attachment points, not shown, are provided on the further side surfaces.
- a third attachment point c is arranged on the lower side surface and thus the first attachment point a opposite. It is understood that the load 9 may have any shape and required for a later to be described turning the load 9 stop points a, b and c as shown in the form of eyelets or screw-on eyelets or other stop means such as loops on the Last 9 can be provided.
- the longitudinal beam 2 of the overhead crane 1 can be moved along crane runways 11 via crane trolleys 10 arranged at its ends.
- crane trolleys 10 arranged at its ends.
- an additional hoist 12 is provided.
- This hoist 12 has a second preferably designed as a chain support means 13, at the lower end of a second load hook 14 is suspended.
- this further hoist 12 via a chassis 15 also as the trolley 3 along the longitudinal member 2 can be moved.
- a coupling rod 16 is provided between the chassis 15 and the trolley 3.
- the chassis 15 of the other hoist 12 with its own Equip drive.
- the coupling rod 16 provided here allows to dispense with this further travel drive.
- the hoist 12 has the function of a load turning device together with the hoist 6.
- FIG. 2a is the load 9, as the arrow symbolize, just raised and is suspended at the first pivot point a by means of the first support means 7 of the hoist 6 to the trolley 3.
- the second pivot point b on the right side of the load 9 is not yet occupied; to recognize but is the freely suspended second support means 13 (the load hook is not shown), which is provided, but not yet attached to the pivot point b.
- FIG. 2b shows the load 9 raised, as can be seen by the schematically illustrated distance of the load 9 from the symbolized bottom 22.
- the second support means 13 has meanwhile been struck at the second point of articulation b of the load 9.
- the second support means 13 is slightly tensioned, but does not raise the load 9 in this case.
- the second support means 13 is tracked only the lifting movement of the first support means 7. This process is indicated by the direction of the arrow coinciding with the second support means 13.
- the Figure 2g shows that in still unchanged altitude of the second pivot point b, ie fixed second support means 13, the load 9 further raised by the first support means 7 in the arrow direction and thereby turned further until the previous bottom of the load 9 is rotated upwards. This can be seen on the orientation bar 23 shown graphically in the load 9.
- FIG. 2h is the turned-back load 9 after lowering the first support means 12 in the direction of arrow or lowering the hoist 9 after previous release of the second support means 15 from the second pivot point b shown.
- the load 9 is opposite in one FIG. 2 180 ° turned position on the ground 22.
- the second support means 13 has not been changed in height and thus has performed no lifting function.
- the second support means 13 was used exclusively for holding the load 9, while all lifting operations of the load 9 were performed by the first support means 7.
- FIG. 3 shows a section of the longitudinal member 2 and the chassis 15 of the additional hoist 12 in a perspective view.
- the undercarriage 15 engages around the lower flange of the longitudinal member 2 designed as a double-T-beam as a rail 5 from below in a C-shaped manner and for this purpose has a correspondingly formed undercarriage frame 17.
- This chassis frame 17 is supported by the wheels 18 on the rail 5.
- this chassis frame 17 carries suspension parts 21, which cover the rail 5 on the one hand with a suspension flange 21a seen from above and on the other hand extend in the vertical direction down through the landing gear frame 17 in the form of a hanging 21 b.
- the suspension part 21 is supported in total by spring elements 25 on the chassis frame 17.
- the suspension parts 21, in particular their suspension legs 21b, serve to receive a suspension bolt 19 on which the hoist 12 is suspended. Seen in the longitudinal direction of the longitudinal member 2, the suspension parts 21 have an angular cross-section. In this case, the suspension flange 21a extends substantially horizontally and the suspension gable 21b is substantially vertical.
- FIG. 4 is a sectional view of FIG. 3 shown along the section line xx.
- the suspension bolt 19 is supported with its ends in the region of bores 21c in the suspension lugs 21b.
- FIG. 4 clearly, seen in the vertical direction, the suspension members 21 are under load of the suspension bolt 19 by, for example, a hung on the hoist 12 load 9 against the force of the spring elements 25 in the vertical direction on the rail 5 towards movable.
- the receiving parts 21 are based directly on their horizontal suspension flanges 21a on the rail 5 from.
- the chassis 15 and the associated wheels 18 are thus not loaded and can be dimensioned so that they only have to carry the movement of the chassis 15 on the rail 5 in an unloaded condition.
- FIG. 4 shows the FIG. 4 in that the running gear 15 are guided over guide wheels which are rotatable about vertical axes on the lateral outer edges of the rail 5 in the form of the lower flange of the longitudinal member 2.
- the landing gear 15 is shown in its unloaded driving position, that is, on the hoist 12 no load hangs 9.
- the spring elements 25 cause the between the suspension flanges 21a, which partially overlap the rail 5 seen from above and the rail 5, a gap 26 is present ,
- the chassis 15 can be moved on the rails 5.
- the hoist 12 charged when turning a load 9 so the suspension flanges 21 a lower in a so-called operating position in which these at least partially rest flat on the rail 5 and thus no gap 26 is more available.
- sensors are mounted in the form of limit switches. These sensors can detect the operating position and the driving position. The signal from the sensors is used to lock the brake or pawl of the hoist 12 to ensure that the hoist 12 can not be disengaged from its engaged or engaged ratchet hold state as long as a load 9 on the hoist 12 hangs.
- the additional hoist 12 only the second support means 13 and the second load hook 14 and any required stop means for the load 9 can be raised and lowered.
- the load 9 can not be lifted.
- an existing brake device or locking device of the hoist 12 is formed so that a raised by the hoist 6 of the trolley 3 load 9 can be securely held at this raised height level.
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Abstract
Description
Die Erfindung betrifft eine Anordnung zum Wenden einer Last, mit einem von einer Krankatze getragenen und entlang einer Schiene verfahrbaren Hubwerk, von dem ein erstes Tragmittel mit einem ersten Lasthaken heb- und senkbar ist, und mit einem zumindest höhenverstellbaren zweiten Tragmittel mit einem zweiten Lasthaken.The invention relates to an arrangement for turning a load, with a supported by a trolley and movable along a rail hoist, of which a first support means can be raised and lowered with a first load hook, and with an at least height adjustable second support means with a second load hook.
Häufig besteht die Notwendigkeit, die an einem Hebezeug hängenden Lasten zu drehen oder zu wenden, um diese zum Beispiel in eine für einen Fertigungs- oder Montageprozess günstige Lage zu bringen oder um Arbeiten an unzugänglichen Stellen der Last auszuführen. Um dies zu erreichen, sind verschiedene Vorrichtungen und Verfahren allgemein bekannt, die nach Anlegen von Seilen, Ketten, Gurten oder anderen Anschlagmitteln seitlich des Schwerpunktes der Last beim Anheben derselben an diesem Anlenkpunkt eine Lageveränderung bewirken, die bei geschickter Manipulation der Anschlagmittel in Zusammenwirkung mit dem Hebezeug ein Wenden der Last ermöglichen.Often, there is a need to rotate or turn loads suspended on a hoist, for example, to bring them into a position convenient for a manufacturing or assembly process, or to perform work in inaccessible areas of the load. To achieve this, various devices and methods are well known that cause after applying ropes, chains, straps or other slings laterally of the center of gravity of the load when lifting the same at this point of articulation a change in position with skillful manipulation of the stop means in cooperation with the Hoist allow the load to turn.
Unter dem Wenden einer Last im weitesten Sinne soll im Rahmen der Erfindung jegliche Veränderung der Ausgangslage einer an einem Hebezeug hängenden Last verstanden werden, die durch Drehen derselben Last im angehobenen Zustand erreichbar ist, wobei der Begriff "Wenden" auch unvollständige Drehungen der Last beschreiben soll. Mit Tragmitteln meint die Erfindung fest mit dem Hebezeug verbundene Seile und Ketten zum Halten der Last, gegebenenfalls auch einschließlich des mit dem Hubseil oder einer Hubkette eines Hebezeugs verbundenen Lastaufnahmemittels, wie beispielsweise eines Lasthakens. Ein Hebezeug weist üblicherweise ein Hubwerk auf, welches ein Heben und Senken der Last ermöglicht und im Wesentlichen aus dem Hubantrieb, einem Getriebe und einer Bremsvorrichtung besteht.By turning a load in its widest sense, the invention means any change in the starting position of a load suspended on a hoist, which can be achieved by turning the same load in the raised state, the term "turning" also being intended to describe incomplete turns of the load , By means of suspension means the invention firmly associated with the hoist ropes and chains for holding the load, possibly including including connected to the hoisting rope or a lifting chain of a hoist load-receiving means, such as a load hook. A hoist usually has a hoist, which allows lifting and lowering of the load and consists essentially of the lifting drive, a transmission and a braking device.
In der deutschen Patentschrift
Die Verwendung von zwei Hubwerken an einem Laufkran zum Heben und Senken sowie Wenden der angeschlagenen Lasten bedarf wegen der Einbeziehung beider Hubwerke in den Lasthebeprozess eine Auslegung jedes Hubwerkes auf das Gesamtgewicht der Last, d.h., die beiden Hubwerke sind üblicherweise gleich ausgelegt, da während des Wendevorganges das Lastgewicht wechselweise von dem einen oder dem anderen Hubwerk oder von beiden Hubwerken gemeinsam getragen wird. Hierbei muss jedes Hubwerk auf die Maximallast ausgelegt werden und durch ihr Eigengewicht vermindern die Hubwerke die Tragfähigkeit des Laufkranes. Zudem sind bei den somit groß dimensionierten Hubwerken starke Schrägzüge der Tragseile unvermeidbar, die sich aus den erforderlichen Abständen der Seilrollen beider Hubwerke ergeben.The use of two hoists on an overhead crane for lifting and lowering and turning the ailing loads requires because of the inclusion of both hoists in the lifting process a design of each hoist on the total weight of the load, ie, the two hoists are usually the same design, since during the turning process the load weight is alternately carried by one or the other hoist or by both hoists together. Here, each hoist must be designed for the maximum load and their own weight reduce the hoists the carrying capacity of the overhead crane. In addition, in the thus large-sized hoists strong diagonal trains of the support cables are unavoidable, resulting from the required intervals of the pulleys both hoists.
In der deutschen Offenlegungsschrift
Der Erfindung liegt die Aufgabe zugrunde, eine einfache, kompakte und kostengünstige Anordnung zum Wenden von hängenden Lasten zu finden, mit dem schwere unhandliche Lasten sicherer gewendet werden können.The invention has for its object to find a simple, compact and cost-effective arrangement for reversing hanging loads, can be turned safely with the heavy cumbersome loads.
Diese Aufgabe wird durch eine Anordnung mit den Merkmalen des Anspruches 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Ansprüchen 2 bis 10 angegeben.This object is achieved by an arrangement with the features of claim 1. Advantageous embodiments of the invention are in the
Erfindungsgemäß wird bei einer Anordnung zum Wenden einer Last, mit einem von einer Krankatze getragenen und entlang einer Schiene verfahrbaren Hubwerk, von dem ein erstes Tragmittel mit einem ersten Lasthaken heb- und senkbar ist, und mit einem zumindest höhenverstellbaren zweiten Tragmittel mit einem zweiten Lasthaken, einfache, kompakte und kostengünstige Ausgestaltung, dadurch erreicht, dass das zweite Tragmittel an einem Fahrwerk aufgehängt ist, das entlang der Schiene verfahrbar ist und derart ausgestaltet ist, dass sich das Fahrwerk in einer lastfreien Fahrstellung über seine Laufräder auf der Schiene abstützt und in einer Betriebsstellung mit aufgenommener Last unter Entlastung der Laufräder auf die Schiene absenkt und abstützt.According to the invention, in an arrangement for turning a load, with a hoist carried by a crane trolley and movable along a rail, of which a first suspension means can be raised and lowered by a first load hook, and with an at least height-adjustable second suspension means with a second load hook, simple, compact and inexpensive design, achieved in that the second support means is suspended from a chassis which is movable along the rail and is designed such that the chassis is supported in a load-free driving position on its wheels on the rail and in an operating position Lowered with load on the rail and relieves the wheels.
Im Sinne der Erfindung ist unter einem Lasthaken jegliche Art von Befestigungsmittel zu verstehen, mit dem eine Last an einem Tragmittel befestigt werden kann.For the purposes of the invention, a load hook means any type of fastening means with which a load can be fastened to a suspension element.
Die Erfindung zeichnet sich dadurch, dass ohne eine aufwändige, teure und schwere zweite Krankatze einzusetzen, ein zweites separates Fahrwerk vorgesehen wird, an dem das für den Wendvorgang vorgesehene zweite Tragmittel aufgehängt ist. Die Besonderheit des erfindungsgemäßen Fahrwerkes besteht darin, dass beim Aufnehmen der Last das Fahrwerk auf der Schiene absetzt, so dass die hohen Gewichtskräfte der Last nicht punktförmig über die Laufräder auf die Schiene, sondern linienförmig als Streckenlast übertragen werden; hierdurch kann das Fahrwerk insgesamt sehr leicht ausgeführt werden, was insgesamt der Tragkraft des Laufkrans zu Gute kommt. Auch reduzieren sich die mechanischen Spannungen in der Schiene des Längsträgers erheblich. Dadurch ist auch geringer Radstand der Laufräder des Fahrwerks möglich. Auch sind kleinere Raddurchmesser möglich. Insgesamt ist somit das Fahrwerk besonders kurz und leicht zu bauen. Eine Nachrüstung bestehender Trägerkrane zum Wenden von Lasten ist problemlos möglich und erfordert in den meisten Fällen wegen des geringen Gewichts der zusätzlichen Bauteile keine neuen statischen Berechnungen. Der geringe Energieverbrauch des zusätzlichen Fahrwerks passt ausgezeichnet zur vermehrt geforderten "Green-Strategy".The invention is characterized in that use without a complex, expensive and heavy second trolley, a second separate chassis is provided, on which the intended for the turning process second suspension means is suspended. The peculiarity of the chassis according to the invention is that, when picking up the load, the chassis settles on the rail, so that the high weight forces of the load are not punctiform transmitted via the wheels to the rail, but linear as a line load; As a result, the chassis can be carried out very easily overall, which is the overall benefit of the lifting capacity of the crane. Also reduce the mechanical stresses in the rail of the longitudinal member considerably. This also low wheelbase of the wheels of the chassis is possible. Also smaller wheel diameters are possible. Overall, the suspension is therefore particularly short and easy to build. A retrofit of existing gantry cranes for turning loads is easily possible and in most cases requires no new static calculations due to the low weight of the additional components. The low energy consumption of the additional chassis perfectly matches the increasingly required "green strategy".
Um die Bewegbarkeit des Fahrwerks zwischen der Fahrstellung und der Betriebsstellung zu erreichen, sind konstruktiv besonders einfach zwischen den Laufrädern des Fahrwerks und dem zweiten Tragmittel Federelemente angeordnet.To the mobility of the chassis between the driving position and the operating position to reach, structurally particularly simple between the wheels of the chassis and the second support means spring elements are arranged.
Hierbei ist konstruktiv besonders vorteilhaft, dass die Laufräder an einem Fahrwerksrahmen des Fahrwerks gelagert sind, an dem Fahrwerksrahmen über die Federelemente Aufhängeteile befestigt sind, die relativ zu dem Fahrwerksrahmen durch die Last aus der Fahrstellung in die Betriebsstellung bewegbar sind und an denen das zweite Tragmittel angreift.This is structurally particularly advantageous that the wheels are mounted on a chassis frame of the chassis are mounted on the chassis frame suspension elements via the spring elements, which are movable relative to the chassis frame by the load from the driving position to the operating position and where the second support means attacks ,
Eine gute Bremswirkung und Übertragung der Last von dem Fahrwerk auf die Schiene wird dadurch erreicht, dass die Aufhängeteile einen Aufhängeflansch aufweisen, der in der Betriebsstellung des Fahrwerks flächig auf der Schiene aufliegt. Hierdurch wird die Last vollständig genutzt, um das Fahrwerk in der Betriebsstellung abzubremsen.A good braking effect and transmission of the load from the chassis to the rail is achieved in that the suspension parts have a suspension flange, which rests flat in the operating position of the chassis on the rail. This fully utilizes the load to decelerate the landing gear in the operating position.
Besonders vorteilhaft ist vorgesehen, dass das Fahrwerk über eine Koppelstange mit der Krankatze verbunden ist und das Fahrwerk antriebslos ist. Wie zuvor ausgeführt, kann durch das verwendete Fahrwerk deutlich Gewicht eingespart werden, was der Tragfähigkeit des Tragkranes zu Gute kommt. In Fortsetzung dieses Gedankens wird das Fahrwerk ohne Antrieb ausgebildet und von der Krankatze mitgeschleppt.Particularly advantageous is provided that the chassis is connected via a coupling rod with the crane trolley and the chassis is unpowered. As stated above, can be saved significantly by the chassis used weight, which the load capacity of the support crane comes to good. In continuation of this idea, the suspension is formed without a drive and dragged along by the crane.
Alternativ kann vorgesehen sein, dass Fahrwerk einen eigenen Fahrantrieb aufweist.Alternatively it can be provided that the chassis has its own drive.
Konstruktiv besonders vorteilhaft ist, dass an dem Fahrwerk ein Hebezeug aufgehängt ist, das Hebezeug als Kettenzug ausgebildet ist und das zweite Tragmittel eine Kette ist.Structurally particularly advantageous is that on the chassis a hoist is suspended, the hoist is designed as a chain hoist and the second support means is a chain.
Mit der erfindungsmäßen Anordnung kann vorteilhafter Weise eine Last gewendet werden. Hierfür ist vorgesehen, dass zum Wenden der Last die Last an einem ersten Anschlagpunkt an dem ersten Lasthaken und an einem von dem ersten Anschlagpunkt beabstandeten zweiten Anschlagpunkt an dem zweiten Lasthaken aufgehängt ist und die Last über relative Bewegungen des ersten Lasthakens zu dem zweiten Lasthaken kombiniert mit einer eine Rotationsbewegung der an dem ersten oder zweiten Tragmittel hängenden Last um das erste oder zweite Tragmittel herum wendbar ist, das zweite Tragmittel mit dem zweiten Lasthaken ausschließlich zum Halten der Last ausgelegt ist und das zum Wenden der Last erforderliche Heben und Senken der Last ausschließlich über das Hubwerk mit dem ersten Tragmittel und dem ersten Lasthaken erfolgt.With the arrangement according to the invention, a load can advantageously be turned. For this purpose, it is provided that for turning the load, the load is suspended at a first attachment point on the first load hook and at a second stop point spaced from the first attachment point on the second load hook and the load combined via relative movements of the first load hook to the second load hook a rotational movement of the load hanging on the first or second suspension means around the first or second suspension means is reversible, the second suspension means with the second load hook exclusively for Holding the load is designed and necessary for turning the load lifting and lowering of the load is done exclusively via the hoist with the first support means and the first load hook.
Um weiter Energie, Gewicht und Kosten einzusparen ist vorgesehen, dass das Hebezeug auf eine Leistung und eine statische Tragfähigkeit ausgelegt ist, die zur lastfreien Höhenverstellung des zweiten Tragmittels mit dem zweiten Lasthaken nebst etwaig notwendiger Anschlagmittel erforderlich ist und zum Halten der Last auf einer gewünschten Höhe ausgelegt ist. Daher erfolgt die Rotationsbewegung für das Lastwenden ausschließlich um das zweite Trennmittel herum.To further save energy, weight and cost, it is provided that the hoist is designed for a performance and a static load capacity, which is required for load-free height adjustment of the second support means with the second load hook and any necessary stop means and for holding the load at a desired height is designed. Therefore, the rotational movement for the load turning occurs only around the second parting agent.
Besonders vorteilhaft ist vorgesehen, dass an dem Fahrwerk mindestens ein Sensor befestigt ist, über den die Betriebsstellung erkennbar ist und über ein Signal des Sensors das Hebezeug in seiner Lasthaltefunktion verriegelt ist. Hierdurch wird vorteilhafterweise vermieden, dass eine Bremse des Hebezeuges oder die Sperrklinke des Hebezeuges gelüftet bzw. entriegelt wird, solange noch eine Last an dem Hebezeug hängt.It is particularly advantageously provided that at least one sensor is attached to the chassis, via which the operating position can be seen and a signal from the sensor, the hoist is locked in its load holding function. As a result, it is advantageously avoided that a brake of the hoist or the pawl of the hoist is released or unlocked, as long as a load still depends on the hoist.
Nachfolgend wird die Erfindung anhand eines Ausführungsbeispiels näher beschrieben. Es zeigen:
-
Figur 1 einen Laufkran mit einer Anordnung zum Wenden einer Last, -
Figur 2a bis Figur 2h eine Abfolge der einzelnen Arbeitsschritte zum Wenden der Last, -
Figur 3 eine Ausschnittsvergrößerung vonFigur 1 aus dem Bereich eines zweiten Fahrwerks in perspektivischer Darstellung und -
einen senkrechten Schnitt durch das zweite Fahrwerk gemäßFigur 4Figur 3 entlang der Schnittlinie x-x.
-
FIG. 1 an overhead crane with an arrangement for turning a load, -
Figure 2a to Figure 2h a sequence of the individual work steps for turning the load, -
FIG. 3 an excerpt fromFIG. 1 from the area of a second chassis in perspective and -
FIG. 4 a vertical section through the second chassis according toFIG. 3 along the section line xx.
In der
Grundsätzlich ist es auch möglich, dass anstelle des Lasthakens 8 andere Lastaufnahmemittel vorzusehen. Auch können die insbesondere biegeschlaffen Tragmittel 7 nicht nur in Form von Seilen sondern auch in Form von Ketten oder Tragbändern ausgebildet sein.In principle, it is also possible to provide 8 instead of the load hook other load handling devices. Also, the particular limp support means 7 may be formed not only in the form of ropes but also in the form of chains or straps.
Die Last 9 ist nur schematisch als quaderförmiger Gegenstand dargestellt und weist zentral an seiner oberen Seitenfläche einen ersten Anschlagpunkt a in Form einer Lasche auf. Ein zweiter Anschlagpunkt b ist zentral an seiner rechten Seitenfläche vorgesehen. Weitere nicht dargestellte Anschlagpunkte sind an den weiteren Seitenflächen vorgesehen. Ein dritter Anschlagpunkt c ist auf der unteren Seitenfläche und somit dem ersten Anschlagpunkt a gegenüberliegend angeordnet. Es ist selbstverständlich, dass die Last 9 jede beliebige Form haben kann und die für ein noch später zu beschreibendes Wenden der Last 9 erforderlichen Anschlagpunkte a, b und c wie dargestellt in Form von Ösen beziehungsweise anschraubbaren Ösen oder durch andere Anschlagmittel wie beispielsweise Seilschlaufen an der Last 9 vorgesehen werden können.The
Desweiteren ist der Längsträger 2 des Laufkrans 1 über an seinen Enden angeordnete Kranfahrwerke 10 entlang von Kranbahnen 11 verfahrbar. Somit können in üblicher Weise über den Laufkran 1 durch Fahrbewegungen des Längsträger 2 und der Krankatze 3 entlang des Längsträgers 2 beliebige Orte in einem Überdeckungsbereich des Laufkrans 1 erreicht werden.Furthermore, the
Um mittels dieses handelsüblichen Laufkrans 1 an dem ersten Lasthaken 8 aufgehängte Lasten 9 wenden zu können, ist ein zusätzliches Hebezeug 12 vorgesehen. Dieses Hebezeug 12 verfügt über ein zweites vorzugsweise als Kette ausgebildetes Tragmittel 13, an dessen unterem Ende ein zweiter Lasthaken 14 aufgehängt ist. Auch ist dieses weitere Hebezeug 12 über ein Fahrwerk 15 ebenfalls wie die Krankatze 3 entlang des Längsträgers 2 verfahrbar. Um das Fahrwerk 15 des Hebezeuges 12 antriebslos ausgestalten zu können, ist zwischen dem Fahrwerk 15 und der Krankatze 3 eine Koppelstange 16 vorgesehen. Grundsätzlich ist es auch möglich, das Fahrwerk 15 des weiteren Hebezeuges 12 mit einem eigenen Fahrantrieb auszustatten. Die hier vorgesehene Koppelstange 16 ermöglicht jedoch, auf diesen weiteren Fahrantrieb zu verzichten.To be able to turn
Wie mit Hilfe der Krankatze 3 und dem zusätzlichen Hebezeug 12 eine Last 9 gewendet werden kann, wird nachfolgend anhand der
In der
Die
In
In
Die
In
Die
In der
Auch zeigt die
Außerdem sind am Fahrwerksrahmen 17 nicht dargestellte Sensoren in Form von Endschaltern befestigt. Diese Sensoren können die Betriebsstellung und die Fahrstellung erkennen. Das Signal der Sensoren wird zur Verriegelung der Bremse oder einer Sperrklinke des Hebezeugs 12 verwendet, um zu garantieren, dass das Hebezeug 12 nicht aus seinem Haltezustand mit im Eingriff befindliche Bremse oder eingefallener Sperrklinke heraus geschaltet werden kann, solange eine Last 9 an dem Hebezeug 12 hängt.In addition, not shown on the
Ergänzend wird darauf hingewiesen, das von den zusätzlichen Hebezeug 12 nur das zweite Tragmittel 13 und der zweite Lasthaken 14 sowie etwaig erforderliche Anschlagmittel für die Last 9 angehoben und abgesenkt werden können. Die Last 9 kann nicht gehoben werden. Jedoch ist eine vorhandene Bremsvorrichtung oder Sperrvorrichtung des Hebezeuges 12 so ausgebildet, das auch eine von dem Hubwerk 6 der Krankatze 3 angehobene Last 9 auf diesen angehobenen Höhenniveau sicher gehalten werden kann.In addition, it is pointed out that of the additional hoist 12 only the second support means 13 and the
- 11
- Laufkranoverhead crane
- 22
- Längsträgerlongitudinal beams
- 33
- Krankatzecrab
- 44
- Räderbikes
- 55
- Schienerail
- 66
- Hubwerkhoist
- 77
- erstes Tragmittelfirst suspension means
- 88th
- erster Lasthakenfirst load hook
- 99
- Lastload
- 1010
- Kranfahrwerkecrane trolleys
- 1111
- Kranbahnenrunways
- 1212
- Hebezeughoist
- 1313
- zweites Tragmittelsecond suspension means
- 1414
- zweiter Lasthakensecond load hook
- 1515
- Fahrwerklanding gear
- 1616
- Koppelstangecoupling rod
- 1717
- Fahrwerksrahmenchassis frame
- 1818
- Laufräderimpellers
- 1919
- Aufhängebolzensuspension bolts
- 2020
- Führungsräderguide wheels
- 2121
- Aufhängeteilesuspension parts
- 21a21a
- Aufhängeflanschsuspension flange
- 21b21b
- AufhängeschenkelAufhängeschenkel
- 21c21c
- Bohrungendrilling
- 2222
- Bodenground
- 2323
- Orientierungsbalkenorientation bar
- 2424
- Querstrichslash
- 2525
- Federelementespring elements
- 2626
- Spaltgap
- aa
- erster Anschlagpunktfirst stop point
- bb
- zweiter Anschlagpunktsecond stop point
- cc
- dritter Anschlagpunktthird stop point
- xx
- Schnittebenecutting plane
Claims (10)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010035894 DE102010035894A1 (en) | 2010-08-31 | 2010-08-31 | Arrangement for turning a load |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2423147A1 true EP2423147A1 (en) | 2012-02-29 |
EP2423147B1 EP2423147B1 (en) | 2013-02-20 |
Family
ID=44905359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20110176819 Not-in-force EP2423147B1 (en) | 2010-08-31 | 2011-08-08 | Assembly for rotating a load |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2423147B1 (en) |
DE (1) | DE102010035894A1 (en) |
ES (1) | ES2410061T3 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2544513A (en) * | 2015-11-19 | 2017-05-24 | Sapphire Balustrades Ltd | Controller and method of controlling a load |
CN106743420A (en) * | 2016-12-02 | 2017-05-31 | 广州三五汽车部件有限公司 | Automatic turning device |
CN108557651A (en) * | 2018-05-29 | 2018-09-21 | 湖北卡斯工业科技有限公司 | The accurate folding and unfolding hanging of massive casting mold |
CN108821115A (en) * | 2018-09-04 | 2018-11-16 | 沈阳飞机工业(集团)有限公司 | A kind of snap-gauge turnover mechanism |
CN110356965A (en) * | 2019-08-22 | 2019-10-22 | 淮南矿业(集团)有限责任公司 | A kind of winch head sheave with boom hoisting |
CN114684633A (en) * | 2020-12-29 | 2022-07-01 | 湖北铭科达自动化设备有限公司 | Upset lifting machine and upset lifting means |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1137539B (en) * | 1958-03-13 | 1962-10-04 | Wagner & Co Werkzeugmaschinenf | Turning and transport device for handling long workpieces, especially when processing on straightening and bending presses |
DE1781278A1 (en) | 1968-09-19 | 1970-12-10 | Glueckauf Guenther Klerner Mas | Container lifting device for loading and unloading container transport vehicles |
DE4012381C2 (en) | 1990-04-18 | 1996-03-28 | Miele & Cie | Using a traveling crane to turn loads and methods of turning the load |
US5893471A (en) * | 1997-06-05 | 1999-04-13 | Zakula; Daniel Brian | Freely-movable auxiliary hoist for a gantry crane and method for pivoting a load |
DE102005030969A1 (en) * | 2005-06-15 | 2006-12-21 | Kronimus Ag | Hoist system especially for removing cast concrete preforms from shuttering has a spreader frame with position adjustable slings and with one slid length adjustable |
-
2010
- 2010-08-31 DE DE201010035894 patent/DE102010035894A1/en not_active Withdrawn
-
2011
- 2011-08-08 EP EP20110176819 patent/EP2423147B1/en not_active Not-in-force
- 2011-08-08 ES ES11176819T patent/ES2410061T3/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1137539B (en) * | 1958-03-13 | 1962-10-04 | Wagner & Co Werkzeugmaschinenf | Turning and transport device for handling long workpieces, especially when processing on straightening and bending presses |
DE1781278A1 (en) | 1968-09-19 | 1970-12-10 | Glueckauf Guenther Klerner Mas | Container lifting device for loading and unloading container transport vehicles |
DE4012381C2 (en) | 1990-04-18 | 1996-03-28 | Miele & Cie | Using a traveling crane to turn loads and methods of turning the load |
US5893471A (en) * | 1997-06-05 | 1999-04-13 | Zakula; Daniel Brian | Freely-movable auxiliary hoist for a gantry crane and method for pivoting a load |
DE102005030969A1 (en) * | 2005-06-15 | 2006-12-21 | Kronimus Ag | Hoist system especially for removing cast concrete preforms from shuttering has a spreader frame with position adjustable slings and with one slid length adjustable |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2544513A (en) * | 2015-11-19 | 2017-05-24 | Sapphire Balustrades Ltd | Controller and method of controlling a load |
GB2544513B (en) * | 2015-11-19 | 2021-07-14 | Sapphire Balconies Ltd | Controller and method of controlling a load |
CN106743420A (en) * | 2016-12-02 | 2017-05-31 | 广州三五汽车部件有限公司 | Automatic turning device |
CN108557651A (en) * | 2018-05-29 | 2018-09-21 | 湖北卡斯工业科技有限公司 | The accurate folding and unfolding hanging of massive casting mold |
CN108821115A (en) * | 2018-09-04 | 2018-11-16 | 沈阳飞机工业(集团)有限公司 | A kind of snap-gauge turnover mechanism |
CN108821115B (en) * | 2018-09-04 | 2024-01-23 | 沈阳飞机工业(集团)有限公司 | Cardboard tilting mechanism |
CN110356965A (en) * | 2019-08-22 | 2019-10-22 | 淮南矿业(集团)有限责任公司 | A kind of winch head sheave with boom hoisting |
CN114684633A (en) * | 2020-12-29 | 2022-07-01 | 湖北铭科达自动化设备有限公司 | Upset lifting machine and upset lifting means |
Also Published As
Publication number | Publication date |
---|---|
EP2423147B1 (en) | 2013-02-20 |
DE102010035894A1 (en) | 2012-03-01 |
ES2410061T3 (en) | 2013-06-28 |
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