EP2423149A1 - Mounting for an auxiliary lifting device on a mobile crane - Google Patents
Mounting for an auxiliary lifting device on a mobile crane Download PDFInfo
- Publication number
- EP2423149A1 EP2423149A1 EP10173822A EP10173822A EP2423149A1 EP 2423149 A1 EP2423149 A1 EP 2423149A1 EP 10173822 A EP10173822 A EP 10173822A EP 10173822 A EP10173822 A EP 10173822A EP 2423149 A1 EP2423149 A1 EP 2423149A1
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- EP
- European Patent Office
- Prior art keywords
- auxiliary hoist
- frame
- setup
- foot
- crane
- 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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- 238000009434 installation Methods 0.000 claims abstract description 5
- 238000003860 storage Methods 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 230000037431 insertion Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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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
- 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
-
- 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
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
-
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
Definitions
- the present invention generally relates to equipping an auxiliary hoist on a mobile crane.
- it is concerned with a mobile crane auxiliary hoist setting system and a method of setting up a mobile crane auxiliary hoist;
- a foot support for a mobile crane auxiliary hoist is disclosed.
- auxiliary hoists to complement or support the main hoists is known in mobile crane construction.
- auxiliary hoists are provided for specific purposes as separate units to equip and deploy them on the crane when needed.
- hoists on Hinstbefest Trenten which are usually arranged on their frame parts and serve to attach the Hilfsshubtechnikes on the crane.
- the object of the present invention to provide a set-up system and a method for setting up a mobile crane auxiliary hoist, which improves the set-up of such an auxiliary hoist Shape the way.
- the setup should be possible with a manageable work, time and attention.
- the setup system according to the present invention having auxiliary hoist truss attachments associated with the auxiliary hoist frame and for attachment of the auxiliary hoist to the crane has a scaffolding which can place the auxiliary hoist frame and / or the setup fixtures in a set-up position.
- the set-up system according to the present invention is provided with its own mounting equipment which is capable of moving the necessary parts of the auxiliary hoist or the auxiliary hoist itself or to bring into a position that allows the execution of the set-up process or makes possible.
- the scaffolding could be considered in this sense as a movement or adjusting device for the Hilfsshubwerkrahmen or the Hinstbefest Trenten.
- the scaffolding according to the invention supports the setup process in such a way that it can be performed much less expensive and labor-intensive, in many cases even automatically or semi-automatically.
- the counterbalance lifting system no longer has to be misused for the auxiliary hoist setup or adapted for this task.
- the auxiliary hoist set-up operation can be carried out quickly, and because that, in particular automatic or semi-automatic, retrofittable, will always perform the same, correct actions, also in a very safe manner.
- the setup position may be a mounting position on the crane superstructure, in which an engagement between the auxiliary hoist setup fixtures and countermounts takes place, which are arranged on the crane uppercarriage, in particular on the main lifting gear.
- the setup position at any suitable location on the mobile crane, where it makes sense depending on the crane design to fix the auxiliary hoist.
- the scaffolding can work in different ways and direction, or act, for example, move the auxiliary hoist frame and / or the setup fixtures in the setup position, move or offset, in particular up, down, obliquely up or down or sideways ,
- various drive or actuation types are conceivable, namely, for example, electrically, hydraulically, pneumatically or in a combination
- mechanical drives in each of the mentioned drive forms play a role or can be used separately or alone.
- manually operated mechanical drives such as, for example, crank drives or toothed gears can also be used. It is important that the set-up process always takes place in a comprehensible manner in a reproducible manner, as is in particular also expressed by the term "armor".
- the scaffolding includes a hydraulic lifting cylinder device that raises or lifts the auxiliary hoist frame from a substructure.
- a sub-element may be part of the auxiliary hoist unit.
- the auxiliary hoist and its armor advantageously form one unit, i. a separate or individual or separable component.
- the substructure element is a supporting base or base plate, which is assigned to the frame, in particular via the scaffolding or the lifting cylinder device, from which the frame can be lifted away into the set-up position by means of the scaffolding or the lifting cylinder device.
- the sub-element may be the part that comes to rest on the corresponding crane part and is designed to fit while the scaffolding lifts the rest of the auxiliary hoist away from that substructure into the setup position.
- the armor or the Lifting cylinder device flameproof, especially tensile and pressure resistant, to connect to the support base or base plate. In the latter case (tensile and pressure-resistant), the frame can not only be pushed away from the substructure, but can also be pulled back to the frame after the setup process, the substructure, so that the auxiliary hoist is free of its mounting position.
- a plurality of feet are arranged on the underside or the side facing away from the frame of the support base or base plate, in particular positionally adjustable and / or position-compensating feet.
- feet can also be placed directly on the lower part of the framework, e.g. in the case where there is no support base or base plate under the scaffolding.
- foot counter-bearings are provided on the substructure, in particular on the counterweight rest or on the mounting frame, complementary to the feet of the support base or base plate, in particular foot retainers.
- feet or a footrest for a mobile crane auxiliary hoist have already been addressed in some places.
- a foot support is disclosed herein individually, that is, as a device that establishes an inventive unit individually, but it may also form part of a set-up system or a set-up system, as they do will be described in detail above and in particular later.
- the foot support has a downwardly projecting foot bearing element which is arranged in a limited mobility and / or adjustable in at least one direction relative to the auxiliary hoist.
- Such relative to the auxiliary hoist there are already increased possible tolerances for this direction, both during production and during installation of the auxiliary hoist on its substructure.
- a movable arrangement in this sense comprises both one-way adjustability and movability, which can be achieved by design measures but also by material choice.
- the coupled largerelement be configured elastically deformable, in particular perpendicular to its longitudinal axis or transversely to its attachment, so that a mobility is given in two axes perpendicular to the longitudinal axis.
- Another or additional possibility is to equip the the contemplatlagerelement the auxiliary hoist or on its support base or base plate with an adjustable along the feasibleelement longitudinal axis or in the direction of its attachment, lockable storage, which can be a lockable screw-threaded connection.
- Such a connection makes a simple height adjustment possible.
- a mobility or adjustability of the contemplatlagerelements can reduce manufacturing costs, because the tolerances to be complied with for the components can be increased.
- the cutting work is reduced.
- Even for adjacent components large manufacturing tolerances can be compensated, for example, when using Gussplatten-receiving holes and in particular during the setup process in the event that a cast plate (substructure) is not stored centrally. Because the recording points can be made larger and are more visible to the crane operator, the set-up can be done faster, and with sufficient space can auxiliary support structures partially or completely omitted, such as the above-mentioned Spitzdornkonstruktionen.
- auxiliary hoist In the inventive method for equipping a mobile crane auxiliary hoist with auxiliary hoist attachment, which are associated with the framework of the auxiliary hoist and serve to attach the auxiliary hoist on the crane, the auxiliary hoist or its auxiliary hoist frame and / or the Jostbefest toen be moved to a set-up, proceed or offset.
- the movement, the process or the offset by a mounted on the auxiliary hoist scaffolding which brings the Hilfssubtechnik frame and / or the Studstbefest onlyen in the setup position.
- the method according to the invention again has those advantages and optional features which have already been described above with reference to the set-up system or the setup system.
- a set-up system, a set-up installation or a foot storage can be used or used, as described above or in detail later.
- FIGS. 1 to 4 An embodiment of a mobile crane auxiliary hoist, which is configured according to the invention with a framework, is in the FIGS. 1 to 4 to see.
- the FIG. 1 shows an oblique, perspective view from top left, the FIG. 2 a top view that FIG. 3 a side view and the FIG. 4 a front view.
- the auxiliary hoist 10 has a steel frame 14 in which a winch 12 is rotatably mounted.
- a winch 12 is rotatably mounted on a front page, in the FIG. 4 serves as a view page, the connection piece 36 protrudes for the winch 12 out of the frame 14.
- the auxiliary hoist 10 also includes three other assemblies, namely the assembly of the setup fixtures, the assembly of the framework and the predominantly largerungs assembly.
- the setup fixtures With the setup fixtures, the auxiliary hoist on the crane superstructure, e.g. attached to the main hitch, while the framework can bring in the frame with the setup fixtures in a setup position.
- the auxiliary hoist itself, only its frame, or even just the set-up fixtures, can be moved with the scaffolding so that the set-up position is achieved. But it can also be a combination of these components are moved, as is the case in the present example.
- the truss fixtures with which the auxiliary hoist of the FIGS. 1 to 4 is secured in its working position located on the side of the hoist 10, which in the FIGS. 1 and 3 can be seen from diagonally front or front. They are bilateral and mirror-inverted mounted at the edges and have a projection on top 18, which holds a bolt 16 from two sides. On the underside, in turn, a double projection 20 is formed, which forms a gap 22, in which a bolt 26 can retract from the piston-cylinder unit 24.
- the bolts 16 and 26 are, as already mentioned, the attachment of the auxiliary hoist frame 10 to the crane superstructure or to the main hoist, as will be explained in more detail later.
- the second, functionally essential assembly of the hoist 10 is the scaffolding, which is capable of lifting the hoist 10 on its frame 14 and bring in a set-up position in which the bolts 16 and 26 form a mounting engagement.
- the piston-cylinder unit which is arranged on each end face on the frame 10, wherein the cylinder has the reference numeral 32 and the piston has been given the reference numeral 40. While the cylinder is above the side plate 34 (FIG. FIG. 1 ) is attached to the frame 10, the piston 40 has via its end piece 38 an attachment to the base plate 28, which in the FIGS. 1 and 4 is clearly visible.
- the third assembly of Hilfshubwerks 10, in the FIGS. 1 to 4 becomes apparent, is the subjectlagerung, here with in the FIGS. 1, 3 and 4 apparent feet 30 is realized.
- the satisfiedlagerung and the feet 30 are also described in more detail; they have a downwardly conically tapered and made of an elastic material foot bearing element that can be particularly easily used in an abutment and thereby allows large tolerances and positioning inaccuracies or compensates.
- the feet 30 are disposed at the bottom of the (four) corners of the base plate 28; they are shown explicitly on the front page.
- auxiliary hoist is used in this example to prepare for the setup process on the in FIG. 5 apparent counterweight package 44 set up.
- the counterweight package 44 rests on the crane undercarriage 42 of a mobile crane, and the uppermost counterweight with the trained as a round, concave recesses foot receptacles 48 is used as a substructure for the setup process.
- FIG. 6 shows how an auxiliary hoist 10 has been placed on the top counterweight plate 46 in preparation for the set-up process so that the here barely visible feet have been introduced into the foot receptacles 48.
- the same state is in an oblique view from the opposite side in FIG. 7 represented, where the previously mentioned foot 30 is indicated in its footrest with a reference numeral.
- the direction "forward" relative to the crane undercarriage 42 goes in the FIG. 6 to the left and up in the FIG. 7 to the right diagonally downwards, so that it can be said that the auxiliary hoist 10 with its setup fastenings 16, 18, 20, 24 is parked on the crane forwardly aligned on the uppermost counterweight element 46.
- the further setup process is the FIG. 8 to withdraw, the view direction again that of Figures 5 and 6 equivalent.
- the auxiliary hoist 10 still on the top counterweight element 46 as it is in the FIGS. 6 and 7 has been shown. But it has the crane-superstructure 48 with the hoist bracket 50 to which the main lift 52 is attached, screwed backwards so that it is straight forward and backward over the crane undercarriage 42 is.
- the Haupthubwerk 52 comes in one Position in which the auxiliary lifting counter-attachments 54 and 56 attached to it just come to rest freely above the set-up fixtures 16, 18, and 20.
- the counter-attachments 54 and 56 include upper hook members 54 mounted on both sides and attached on both sides catching and centering tabs 56.
- the piston-cylinder unit with the cylinder 32, so the scaffolding, still fully retracted, so that the frame 10 sits tightly over the plate 28.
- the skeleton is operated to perform attachment of the auxiliary hoist 10 to the main hoist 52, and the state after this step is in the FIG. 9 shown.
- the piston 40 of the framework has been extended out of the cylinder 32 and has raised the frame of the auxiliary hoist 10 from the base plate 28 upwards.
- the bolt 16 (between its bearings 18) retracted into the hook 54 on the upper rear side of the Haupthubtechniks 52, on the other hand, the projection 20 with initially not triggered bolt 26 in the catching and centering tab 56 on the lower side captured on both sides.
- the bolt 26 can then be retracted by means of the piston / cylinder unit 24 in the intermediate space 22 (see, eg FIG. 1 ), and a centered, fixed bolt connection has been achieved on the underside between main lift 52 and auxiliary hoist 10.
- the fasteners 16, 18 and 54 ensure on the top of both sides for the tilting safety.
- FIG. 11 If it is necessary to attach the counterweight to the crane superstructure, still how to fix the FIG. 11 can take the piston-cylinder unit 58 are used, which engages with its attachment 60 in the counterweight package and raise it altogether. In this case, the auxiliary hoist 10 comes to rest in its foot storage and the entire counterweight package can be transported with the hoists on the superstructure.
- FIGS. 12 to 14 Another embodiment of the present invention is shown in FIGS. 12 to 14 shown.
- the auxiliary hoist 10 should be placed at a certain height on the crane undercarriage 42, so that the main lift 52 moved up and the auxiliary hoist can be moved by lifting it with the scaffolding in its coupled setup position.
- the height of the parking was the height of the top counterweight element, but there may be cases where fewer or no counterweights are prepared.
- a mounting frame can be provided as shown in FIG FIG. 12 has been shown and provided with the reference numeral 64.
- the mounting frame 64 rests with its two columns 66 on the counterweight tray 62, and it carries the frame 68, in the above four foot receptacles 70 are introduced, which are similar in arrangement and design of the foot 48, the example in the FIG. 5 you can see.
- FIG. 13 shows how a Hilfssubtechnik 10 can be placed on the mounting frame 46 accordingly, and thus already the preparation for the setup process is done, which then takes place in a corresponding embodiment exactly as in the FIGS. 8 to 10 is shown, wherein the mounting frame 64 takes over the function of the uppermost counterweight plate 46 as a footprint for the Hilfsshubwerk 10.
- the embodiment with the mounting frame not only works without counterweights, but also when a number of counterweights 72 are prepared, these counterweights have recesses 74 for the passage of the column 66.
- FIG. 15 shows here a quarter-cut view of a broadband source, while a half-cut view of the FIG. 16 is removable.
- the foot 30 is fixed to a corner of the base plate 28, wherein its providedlagerelement 92 comes to lie in the recess or foot 48 of a counterweight plate 46.
- the subjectlagerelement 92 is made of an elastically deformable material, and this can be compensated for relatively large manufacturing tolerances, and it takes place at the onset of automatic centering when the convex cone-shaped Withlagerelement 92 enters the concave, correspondingly reverse foot receptacle 48. Because of the relatively large diameter of the consideredlagerelements 92 and the foot 48 shots the setup process or the erection of the auxiliary hoist can be done quickly, also because the mounting points for the crane operator are clearly visible.
- the satisfiedlagerelement 92 which can be configured as a special rubber spring element, ensures in the horizontal direction for an automatic compensation of positioning inaccuracies and for a radial play compensation.
- the aforesaid horizontal adjustability resulting from the elasticity of the foot support member 92 acts mainly perpendicular to the longitudinal axis of the foot attachment defined by the bolt 82.
- the bolt 82 is a bolt which is centered with its head centered over a disk 84 in a bushing consisting of an upper half 86 and a lower half 88 and comprising the base plate 28 on both sides. Below the lower sleeve half 88, the bolt 82 passes through another washer 90 into the foot support member 92, thereby holding it in threaded engagement.
- the disc 90 is fixedly connected to the elastic material of the contemplatlagerelements 92 - it is made of a metallic material and carries an internal thread, which engages with the external thread of the bolt 82 in the lower region.
- twisting the bolt 82 causes the distance between the foot support member 92 and the base plate 28 to increase or decrease such that the foot 30 can be lowered or raised as viewed from the base plate 28.
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Abstract
Description
Die vorliegende Erfindung betrifft ganz allgemein das Rüsten eines Hilfshubwerks an einem Mobilkran. Insbesondere beschäftigt sie sich mit einem Rüstsystem für ein Mobilkran-Hilfshubwerk und mit einem Verfahren zum Rüsten eines Mobilkran-Hilfshubwerks; außerdem wird eine Fußlagerung für ein Mobilkran-Hilfshubwerk offenbart.The present invention generally relates to equipping an auxiliary hoist on a mobile crane. In particular, it is concerned with a mobile crane auxiliary hoist setting system and a method of setting up a mobile crane auxiliary hoist; In addition, a foot support for a mobile crane auxiliary hoist is disclosed.
Die Verwendung von Hilfshubwerken zur Ergänzung bzw. Unterstützung der Haupthubwerke ist im Mobilkran-Bau bekannt. Meist werden Hilfshubwerke für bestimmte Einsatzzwecke als separate Einheiten bereitgestellt, um sie bei Bedarf am Kran zu rüsten und zum Einsatz zu bringen. Zu diesem Zweck weisen solche Hubwerke Rüstbefestigungen auf, die meist an ihren Rahmenteilen angeordnet sind und der Befestigung des Hilfshubwerkes am Kran dienen.The use of auxiliary hoists to complement or support the main hoists is known in mobile crane construction. In most cases auxiliary hoists are provided for specific purposes as separate units to equip and deploy them on the crane when needed. For this purpose, such hoists on Rüstbefestigungen, which are usually arranged on their frame parts and serve to attach the Hilfsshubwerkes on the crane.
Bisher wurden die Hilfshubwerke, die natürlich aufgrund ihres Gewichtes und ihrer Abmessungen kraftunterstützt bewegt werden müssen, meist mit Hilfe des vorhandenen Gegengewichts-Hubsystems bewegt und gerüstet, d.h. verhoben und dann an einer Drehtischaufnahme befestigt.So far, the auxiliary hoists, which of course have to be moved under power because of their weight and dimensions, have mostly been moved and prepared with the aid of the existing counterbalance lifting system, i. and then attached to a turntable holder.
Dieses Vorgehen brachte nachteiligerweise einen hohen Bedarf an Arbeit und Aufmerksamkeit durch das Bedienungspersonal mit sich, um das genaue Ansetzen des Hilfshubwerks mittels eines Hubwerkes zu bewerkstelligen, das eigentlich für die Bewegung von Gegengewichten ausgelegt ist.This procedure disadvantageously entailed a great deal of work and attention from the operator in order to accomplish the accurate application of the auxiliary hoist by means of a hoist actually designed for the movement of counterweights.
Vor diesem Hintergrund ist es die Aufgabe der vorliegenden Erfindung, ein Rüstsystem sowie ein Verfahren zum Rüsten eines Mobilkran-Hilfshubwerkes bereitzustellen, welche das Rüsten eines solchen Hilfshubwerkes in verbesserter Weise gestalten. Insbesondere soll das Rüsten mit einem überschaubaren Arbeits-, Zeit- und Aufmerksamkeitsaufwand erfolgen können.Against this background, it is the object of the present invention to provide a set-up system and a method for setting up a mobile crane auxiliary hoist, which improves the set-up of such an auxiliary hoist Shape the way. In particular, the setup should be possible with a manageable work, time and attention.
Diese Aufgabe wird erfindungsgemäß durch ein Rüstsystem gemäß dem Anspruch 1 sowie eine Rüstanlage nach dem Anspruch 9 und ein Verfahren zum Rüsten eines Mobilkran-Hilfshubwerkes nach dem Anspruch 14 gelöst. Die Unteransprüche definieren bevorzugte Ausführungsformen der Erfindung.This object is achieved by a set-up system according to claim 1 and a set-up system according to claim 9 and a method for equipping a mobile crane auxiliary hoist according to
Das Rüstsystem gemäß der vorliegenden Erfindung, das Hilfshubwerk-Rüstbefestigungen aufweist, die dem Rahmen des Hilfshubwerks zugeordnet sind und der Befestigung des Hilfshubwerkes am Kran dienen, hat ein Rüstwerk, welches den Hilfshubwerk-Rahmen und/oder die Rüstbefestigungen in eine Rüststellung bringen kann. Mit anderen Worten ist das Rüstsystem gemäß der vorliegenden Erfindung mit einer eigenen Montageausstattung versehen, die dazu in der Lage ist, die notwendigen Teile des Hilfshubwerkes oder das Hilfshubwerk selbst zu bewegen bzw. in eine Stellung zu bringen, die das Durchführen des Rüstvorganges erlaubt bzw. möglich macht. Das Rüstwerk könnte in diesem Sinne auch als Bewegungs-oder Stelleinrichtung für den Hilfshubwerkrahmen bzw. die Rüstbefestigungen betrachtet werden.The setup system according to the present invention having auxiliary hoist truss attachments associated with the auxiliary hoist frame and for attachment of the auxiliary hoist to the crane has a scaffolding which can place the auxiliary hoist frame and / or the setup fixtures in a set-up position. In other words, the set-up system according to the present invention is provided with its own mounting equipment which is capable of moving the necessary parts of the auxiliary hoist or the auxiliary hoist itself or to bring into a position that allows the execution of the set-up process or makes possible. The scaffolding could be considered in this sense as a movement or adjusting device for the Hilfsshubwerkrahmen or the Rüstbefestigungen.
Vorteilhafterweise unterstützt das erfindungsgemäß vorhandene Rüstwerk den Rüstvorgang in einer solchen Art, dass dieser sehr viel weniger aufwendig und arbeitsintensiv, in vielen Fällen sogar automatisch oder halbautomatisch durchgeführt werden kann. Das Gegengewichts-Hubsystem muss nicht mehr für den Hilfshubwerk-Rüstvorgang zweckentfremdet oder für diese Aufgabe angepasst werden. Der Hilfshubwerk-Rüstvorgang kann schnell, und weil das, insbesondere automatische oder halbautomatische, Rüstwerk wiederholbar immer die gleichen, richtigen Tätigkeiten durchführen wird, auch in sehr sicherer Art und Weise durchgeführt werden.Advantageously, the scaffolding according to the invention supports the setup process in such a way that it can be performed much less expensive and labor-intensive, in many cases even automatically or semi-automatically. The counterbalance lifting system no longer has to be misused for the auxiliary hoist setup or adapted for this task. The auxiliary hoist set-up operation can be carried out quickly, and because that, in particular automatic or semi-automatic, retrofittable, will always perform the same, correct actions, also in a very safe manner.
Die Rüststellung kann eine Befestigungsstellung am Kran-Oberwagen sein, bei der ein Eingriff zwischen den Hilfshubwerk-Rüstbefestigungen und Gegenbefestigungen stattfindet, die am Kranoberwagen, insbesondere am Haupthubwerk angeordnet sind. Natürlich kann die Rüststellung an jedweder geeigneter Stelle am Mobilkran sein, wo es je nach Krangestaltung Sinn ergibt, das Hilfshubwerk zu befestigen. Das Rüstwerk kann in unterschiedlicher Art und Weise sowie Richtung arbeiten, bzw. wirken, beispielsweise den Hilfshubwerk-Rahmen und/oder die Rüstbefestigungen in die Rüststellung bewegen, verfahren oder versetzen, insbesondere nach oben, nach unten, schräg nach oben bzw. unten oder seitwärts. Ferner sind verschiedene Antriebs- bzw. Betätigungsarten denkbar, nämlich z.B. elektrisch, hydraulisch, pneumatisch oder in einer Kombination, wobei natürlich mechanische Antriebe bei jeder der genannten Antriebsformen eine Rolle spielen oder auch separat bzw. alleine verwendet werden können. Natürlich sind auch grundsätzlich auch handbetätigte mechanische Antriebe, wie z.B. Kurbelantriebe oder verzahnte Getriebe einsetzbar. Wichtig ist, dass der Rüstvorgang immer wieder nachvollziehbar in reproduzierbarer Art und Weise stattfindet, wie insbesondere auch durch den Begriff "Rüstwerk" zum Ausdruck kommt.The setup position may be a mounting position on the crane superstructure, in which an engagement between the auxiliary hoist setup fixtures and countermounts takes place, which are arranged on the crane uppercarriage, in particular on the main lifting gear. Of course, the setup position at any suitable location on the mobile crane, where it makes sense depending on the crane design to fix the auxiliary hoist. The scaffolding can work in different ways and direction, or act, for example, move the auxiliary hoist frame and / or the setup fixtures in the setup position, move or offset, in particular up, down, obliquely up or down or sideways , Furthermore, various drive or actuation types are conceivable, namely, for example, electrically, hydraulically, pneumatically or in a combination, of course, mechanical drives in each of the mentioned drive forms play a role or can be used separately or alone. Of course, manually operated mechanical drives, such as, for example, crank drives or toothed gears can also be used. It is important that the set-up process always takes place in a comprehensible manner in a reproducible manner, as is in particular also expressed by the term "armor".
Bei einer bevorzugten Ausführungsform der vorliegenden Erfindung umfasst das Rüstwerk eine hydraulische Hebezylindervorrichtung, die den Hilfshubwerk-Rahmen von einem Unterbauelement weg- oder anhebt. Ein solches Unterbauelement kann ein Teil der Hilfshubwerk-Einheit sein. Ganz generell bilden gemäß der vorliegenden Erfindung das Hilfshubwerk und sein Rüstwerk vorteilhafterweise eine Einheit, d.h. ein separates oder einzelnes bzw. vereinzelbares Bauteil.In a preferred embodiment of the present invention, the scaffolding includes a hydraulic lifting cylinder device that raises or lifts the auxiliary hoist frame from a substructure. Such a sub-element may be part of the auxiliary hoist unit. More generally, according to the present invention, the auxiliary hoist and its armor advantageously form one unit, i. a separate or individual or separable component.
Bei einer Ausgestaltung des erfindungsgemäßen Rüstsystems ist das Unterbauelement eine dem Rahmen zugeordnete, insbesondere über das Rüstwerk bzw. die Hebezylindervorrichtung mit dem Rahmen verbundene, Abstützbasis oder Grundplatte, von welcher der Rahmen mittels des Rüstwerk bzw. der Hebezylindervorrichtung weg in die Rüstposition gehoben werden kann. Mit anderen Worten kann das Unterbauelement derjenige Teil sein, der auf dem entsprechenden Kranteil zur Auflage kommt und dafür passend ausgestaltet ist, während das Rüstwerk den Rest des Hilfshubwerks von dieser Unterbaukonstruktion weg in die Rüststellung anhebt. Dabei ist es möglich, das Rüstwerk bzw. die Hebezylindervorrichtung druckfest, insbesondere zug- und druckfest, mit der Abstützbasis oder Grundplatte zu verbinden. Im letzteren Fall (zug- und druckfest) kann der Rahmen nicht nur von der Unterbaukonstruktion weg gedrückt werden, vielmehr lässt sich nach dem Rüstvorgang die Unterbaukonstruktion dann auch wieder zum Rahmen hinziehen, so dass das Hilfshubwerk von seinem Montageplatz frei wird.In one embodiment of the setting system according to the invention, the substructure element is a supporting base or base plate, which is assigned to the frame, in particular via the scaffolding or the lifting cylinder device, from which the frame can be lifted away into the set-up position by means of the scaffolding or the lifting cylinder device. In other words, the sub-element may be the part that comes to rest on the corresponding crane part and is designed to fit while the scaffolding lifts the rest of the auxiliary hoist away from that substructure into the setup position. It is possible, the armor or the Lifting cylinder device flameproof, especially tensile and pressure resistant, to connect to the support base or base plate. In the latter case (tensile and pressure-resistant), the frame can not only be pushed away from the substructure, but can also be pulled back to the frame after the setup process, the substructure, so that the auxiliary hoist is free of its mounting position.
Gemäß einer Ausführungsform der Erfindung sind an der Unterseite bzw. der dem Rahmen abgewandten Seite der Abstützbasis oder Grundplatte mehrere Füße angeordnet, insbesondere positionsmäßig einstellbare und/oder positionsausgleichende Füße. Solche Füße können natürlich auch unmittelbar am unteren Teil des Rüstwerks angeordnet werden, z.B. in dem Fall, wo keine Abstützbasis oder Grundplatte unter dem Rüstwerk vorhanden ist.According to one embodiment of the invention, a plurality of feet are arranged on the underside or the side facing away from the frame of the support base or base plate, in particular positionally adjustable and / or position-compensating feet. Of course, such feet can also be placed directly on the lower part of the framework, e.g. in the case where there is no support base or base plate under the scaffolding.
Die erfindungsgemäße Rüstanlage für ein Mobilkran-Hilfshubwerk umfasst ein Rüstsystem, wie es oben allgemein in verschiedenen Ausführungsformen und im Weiteren auch detaillierter beschrieben wird, und sie weist ferner eine zum Aufsetzen des Hilfshubwerkes oder seiner Abstützbasis oder Grundplatte geeignete bzw. angepasste Unterkonstruktion auf. Eine solche Unterkonstruktion kann sein:
- das oberste montierte Gegengewichtselement und/oder
- ein auf die Gegengewichtsablage oder ein Gegengewichtselement aufgestelltes Montagegestell.
- the topmost mounted counterweight element and / or
- a mounted on the counterweight tray or a counterweight assembly frame.
Gemäß einer Ausführungsvariante der Rüstanlage sind auf der Unterkonstruktion, insbesondere auf der Gegengewichtsablage oder auf dem Montagegestell, komplementär zu den Füßen der Abstützbasis oder Grundplatte Fuß-Gegenlagerungen vorgesehen, speziell Fußaufnahmen.According to an embodiment variant of the setup system, foot counter-bearings are provided on the substructure, in particular on the counterweight rest or on the mounting frame, complementary to the feet of the support base or base plate, in particular foot retainers.
Oben wurden schon an einigen Stellen Füße bzw. eine Fußlagerung für ein Mobilkran-Hilfshubwerk angesprochen. Eine solche Fußlagerung wird hierin einzeln, also als individuell eine erfinderische Einheit begründende Vorrichtung offenbart, sie kann aber auch einen Teil eines Rüstsystems bzw. einer Rüstanlage bilden, wie sie oben und insbesondere später detailliert beschrieben werden. In jedem Fall weist die Fußlagerung ein nach unten vorstehendes Fußlagerelement auf, das in mindestens einer Richtung gegenüber dem Hilfshubwerk eingeschränkt beweglich und/oder verstellbar angeordnet ist.At the top, feet or a footrest for a mobile crane auxiliary hoist have already been addressed in some places. Such a foot support is disclosed herein individually, that is, as a device that establishes an inventive unit individually, but it may also form part of a set-up system or a set-up system, as they do will be described in detail above and in particular later. In any case, the foot support has a downwardly projecting foot bearing element which is arranged in a limited mobility and / or adjustable in at least one direction relative to the auxiliary hoist.
Bisher wurden solche Fußlagerungen meist als Spitzdornkonstruktionen mit Stahldornen ausgeführt, die in Aufnahmelöcher in der jeweils vorhandenen Unterkonstruktion eingesetzt werden konnten. Eine solche starre Lagerung ist höchst unflexibel und macht den Rüstvorgang langsam und kompliziert, da ein genaues Einsetzen erforderlich wird. Wenn aber, wie gemäß der vorliegenden Erfindung, eine eingeschränkte Beweglichkeit in mindestens einer Richtung gegenüber dem Hilfshubwerk vorhanden ist, ergeben sich schon für diese Richtung erhöhte mögliche Toleranzen, sowohl bei der Fertigung als auch bei der Aufstellung des Hilfshubwerks auf seiner Unterkonstruktion. Eine bewegliche Anordnung umfasst in diesem Sinne sowohl eine Verstellbarkeit in einer Richtung als auch eine Bewegbarkeit, die durch Konstruktionsmaßnahmen aber auch durch Materialwahl erzielt werden kann. Beispielsweise kann das Fußlagerelement elastisch verformbar ausgestaltet werden, insbesondere senkrecht zu seiner Längsachse bzw. quer zu seiner Befestigung, so dass eine Beweglichkeit in zwei Achsen senkrecht zur Längsachse gegeben ist.So far, such Fußlagerungen were usually designed as Spitzdornkonstruktionen with steel mandrels that could be used in receiving holes in the existing substructure. Such a rigid bearing is highly inflexible and makes the setup process slow and complicated, as an accurate insertion is required. However, if, as in accordance with the present invention, there is limited mobility in at least one direction relative to the auxiliary hoist, there are already increased possible tolerances for this direction, both during production and during installation of the auxiliary hoist on its substructure. A movable arrangement in this sense comprises both one-way adjustability and movability, which can be achieved by design measures but also by material choice. For example, the Fußlagerelement be configured elastically deformable, in particular perpendicular to its longitudinal axis or transversely to its attachment, so that a mobility is given in two axes perpendicular to the longitudinal axis.
Eine andere oder zusätzliche Möglichkeit besteht darin, das Fußlagerelement am Hilfshubwerk oder an dessen Abstützbasis oder Grundplatte mit einer entlang der Fußelement-Längsachse bzw. in Richtung seiner Befestigung verstellbaren, arretierbaren Lagerung auszurüsten, die eine arretierbare Schrauben-Gewinde-Verbindung sein kann. Eine solche Verbindung macht eine einfache Höheneinstellung möglich. Eine Bewegbarkeit bzw. Verstellbarkeit des Fußlagerelements kann die Fertigungskosten reduzieren, weil die einzuhaltenden Toleranzen für die Bauteile vergrößert werden können. Außerdem reduziert sich die Zerspanungsarbeit. Auch für angrenzende Bauteile lassen sich große Fertigungstoleranzen ausgleichen, z.B. bei der Verwendung von Gussplatten-Aufnahmelöchern und insbesondere auch beim Rüstvorgang für den Fall, dass eine Gussplatte (Unterkonstruktion) nicht zentrisch abgelegt ist. Weil die Aufnahmepunkte größer gestaltet werden können und so für den Kranfahrer besser sichtbar sind, lässt sich der Rüstvorgang schneller durchführen, und bei ausreichendem Bauraum können Aufnahme-Hilfskonstruktionen teilweise oder ganz entfallen, wie z.B. die oben schon angesprochene Spitzdornkonstruktionen.Another or additional possibility is to equip the Fußlagerelement the auxiliary hoist or on its support base or base plate with an adjustable along the Fußelement longitudinal axis or in the direction of its attachment, lockable storage, which can be a lockable screw-threaded connection. Such a connection makes a simple height adjustment possible. A mobility or adjustability of the Fußlagerelements can reduce manufacturing costs, because the tolerances to be complied with for the components can be increased. In addition, the cutting work is reduced. Even for adjacent components, large manufacturing tolerances can be compensated, for example, when using Gussplatten-receiving holes and in particular during the setup process in the event that a cast plate (substructure) is not stored centrally. Because the recording points can be made larger and are more visible to the crane operator, the set-up can be done faster, and with sufficient space can auxiliary support structures partially or completely omitted, such as the above-mentioned Spitzdornkonstruktionen.
Bei dem erfindungsgemäßen Verfahren zum Rüsten eines Mobilkran-Hilfshubwerkes mit Hilfshubwerk-Rüstbefestigung, die dem Rahmen des Hilfshubwerks zugeordnet sind und der Befestigung des Hilfshubwerkes am Kran dienen, werden das Hilfshubwerk oder sein Hilfshubwerk-Rahmen und/oder die Rüstbefestigungen in eine Rüststellung bewegt, verfahren oder versetzt. Dabei erfolgt die Bewegung, das Verfahren oder das Versetzen durch ein am Hilfshubwerk angebrachtes Rüstwerk, welches den Hilfshubwerk-Rahmen und/oder die Rüstbefestigungen in die Rüststellung bringt. Natürlich hat das erfindungsgemäße Verfahren wiederum diejenigen Vorteile und optionale Merkmale die oben schon anhand des Rüstsystems bzw. der Rüstanlage beschrieben worden sind. Außerdem können bei einem erfindungsgemäßen Verfahren in verschiedenen Ausführungsformen beim Rüsten ein Rüstsystem, eine Rüstanlage oder eine Fußlagerung verwendet bzw. eingesetzt werden, wie sie oben oder im Detail später noch beschrieben wurden bzw. werden.In the inventive method for equipping a mobile crane auxiliary hoist with auxiliary hoist attachment, which are associated with the framework of the auxiliary hoist and serve to attach the auxiliary hoist on the crane, the auxiliary hoist or its auxiliary hoist frame and / or the Rüstbefestigungen be moved to a set-up, proceed or offset. In this case, the movement, the process or the offset by a mounted on the auxiliary hoist scaffolding, which brings the Hilfssubwerk frame and / or the Rüstbefestigungen in the setup position. Of course, the method according to the invention again has those advantages and optional features which have already been described above with reference to the set-up system or the setup system. In addition, in a method according to the invention in various embodiments, a set-up system, a set-up installation or a foot storage can be used or used, as described above or in detail later.
Die Erfindung wird im Weiteren anhand von Ausführungsbeispielen näher erläutert. Sie kann alle hierin beschriebenen Merkmale einzeln sowie in jedweder sinnvollen Kombination umfassen. In den Zeichnungen zeigen:
- Figuren 1 bis 4
- ein erfindungsgemäß ausgestaltetes Hilfshubwerk in einer schrägen, perspektivischen Ansicht, einer Ansicht von oben, einer seitlichen sowie einer stirnseitigen Ansicht;
- Figuren 5 bis 11
- einen Rüstvorgang mit einem erfindungsgemäßen Rüstsystem, mit einem Gegengewicht als Unterkonstruktion für das Hubwerks-Rüstsystem, vom freiliegenden Gegengewicht bis zum am Haupthubwerk gerüsteten, vom Gegengewicht abgehobenen Hilfshubwerk;
Figuren 12 bis 14- ein Beispiel für eine Rüstsystem, das ein Montagegestell als Unterkonstruktion verwendet; und
- Figuren 15 und 17
- Einzelheiten einer erfindungsgemäßen Fußlagerung für ein Mobilkran-Hilfshubwerk in freigeschnittenen Darstellungen.
- FIGS. 1 to 4
- an auxiliary hoist designed according to the invention in an oblique, perspective view, a view from above, a side view and an end view;
- FIGS. 5 to 11
- a set-up operation with a set-up system according to the invention, with a counterweight as a substructure for the hoist set-up system, from the exposed counterweight to the auxiliary hoist mounted on the main hoist and lifted off the counterweight;
- FIGS. 12 to 14
- an example of a setup system that uses a mounting frame as a substructure; and
- FIGS. 15 and 17
- Details of a foot support according to the invention for a mobile crane auxiliary hoist in cut-away representations.
Eine Ausführungsform eines Mobilkran-Hilfshubwerkes, das erfindungsgemäß mit einem Rüstwerk ausgestaltet ist, ist in den
Das Hilfshubwerk trägt insgesamt das Bezugszeichen 10. An dieser Stelle ist anzumerken, dass Bezugszeichen, die durchgängig in den Figuren verwendet werden, auch gleiche oder zumindest funktionsgleiche Teile bezeichnen.The auxiliary hoist bears the
Das Hilfshubwerk 10 weist einen Stahlrahmen 14 auf, in dem eine Seilwinde 12 drehbar gelagert ist. Auf einer Stirnseite, die in der
Das Hilfshubwerk 10 umfasst außerdem drei weitere Baugruppen, nämlich die Baugruppe der Rüstbefestigungen, die Baugruppe des Rüstwerks und die Fußlagerungs-Baugruppe. Mit den Rüstbefestigungen wird das Hilfshubwerk am Kran-Oberwagen, z.B. am Haupthubwerk befestigt, während das Rüstwerk im Rahmen mit den Rüstbefestigungen in eine Rüststellung bringen kann. An dieser Stelle ist anzumerken, dass ganz allgemein das Hilfshubwerk selbst, nur sein Rahmen oder auch lediglich die Rüstbefestigungen mit dem Rüstwerk so bewegt werden können, dass die Rüststellung erreicht wird. Es kann aber auch eine Kombination dieser Bauteile bewegt werden, wie dies im vorliegenden Beispiel der Fall ist.The auxiliary hoist 10 also includes three other assemblies, namely the assembly of the setup fixtures, the assembly of the framework and the Fußlagerungs assembly. With the setup fixtures, the auxiliary hoist on the crane superstructure, e.g. attached to the main hitch, while the framework can bring in the frame with the setup fixtures in a setup position. It should be noted at this point that, in general, the auxiliary hoist itself, only its frame, or even just the set-up fixtures, can be moved with the scaffolding so that the set-up position is achieved. But it can also be a combination of these components are moved, as is the case in the present example.
Die Rüstbefestigungen, mit denen das Hilfshubwerk der
Die zweite, funktionswesentliche Baugruppe des Hubwerks 10 ist das Rüstwerk, welches dazu in der Lage ist, das Hubwerk 10 an seinem Rahmen 14 anzuheben und in eine Rüststellung zu bringen, in der die Bolzen 16 und 26 einen Montageeingriff bilden. Für die Hubbewegung verantwortlich ist die Kolben-Zylinder-Einheit, die an jeder Stirnseite am Rahmen 10 angeordnet ist, wobei der Zylinder das Bezugszeichen 32 und der Kolben das Bezugszeichen 40 erhalten haben. Während der Zylinder über die seitliche Platte 34 (
Die dritte Baugruppe des Hilfshubwerks 10, die in den
Anhand der
Die
Der weitere Rüstvorgang ist der
Nunmehr wird das Rüstwerk betätigt, um die Befestigung des Hilfshubwerks 10 am Haupthubwerk 52 vorzunehmen, und der Zustand nach diesem Schritt ist in der
In einem weiteren Arbeitsschritt, der in der
Wenn es erforderlich ist, das Gegengewicht am Kranoberwagen zu befestigen, kann noch, wie man der
Eine weitere Ausführungsform der vorliegenden Erfindung ist in den
Die
Wie oben schon angedeutet, wird nunmehr mit Bezugnahme auf die
Der Fuß 30 ist an einer Ecke der Grundplatte 28 befestigt, wobei sein Fußlagerelement 92 in der Ausnehmung bzw. Fußaufnahme 48 einer Gegengewichtsplatte 46 zu liegen kommt. Das Fußlagerelement 92 besteht aus einem elastisch verformbaren Material, und schon hierdurch lassen sich relativ große Fertigungstoleranzen ausgleichen, und es findet beim Einsetzen eine automatische Zentrierung statt, wenn das konvexe, kegelförmige Fußlagerelement 92 in die konkave, entsprechend umgekehrt ausgebildete Fußaufnahme 48 eintritt. Wegen des relativ großen Durchmessers des Fußlagerelements 92 und der Fußaufnahmen 48 kann der Rüstvorgang bzw. das Aufstellen des Hilfshubwerks schnell erfolgen, auch weil die Aufnahmepunkte für den Kranführer gut sichtbar sind. Das Fußlagerelement 92, das als Spezialgummifederelement ausgestaltet werden kann, sorgt in der horizontalen Richtung für einen selbsttätigen Ausgleich von Positionierungsungenauigkeiten sowie für einen Radialspielausgleich.The
Die vorgenannte horizontale Verstellbarkeit bzw. Beweglichkeit, die aus der Elastizität des Fußlagerelements 92 resultiert, wirkt hauptsächlich senkrecht zur Längsachse der Fußbefestigung, die durch den Bolzen 82 festgelegt wird. Der Bolzen 82 ist ein Schraubbolzen, der mit seinem Kopf oben über eine Scheibe 84 in einer Buchse zentriert gelagert wird, die aus einer oberen Hälfte 86 und einer unteren Hälfte 88 besteht und die Grundplatte 28 beidseitig umfasst. Unterhalb der unteren Buchsenhälfte 88 geht der Bolzen 82 durch eine weitere Scheibe 90 hindurch in das Fußlagerelement 92 hinein, wodurch dieses im Gewindeeingriff gehalten wird. Die Scheibe 90 ist fest mit dem elastischen Material des Fußlagerelements 92 verbunden - sie ist aus einem metallischen Werkstoff und trägt ein Innengewinde, das mit dem Außengewinde des Bolzens 82 im unteren Bereich eingreift.The aforesaid horizontal adjustability resulting from the elasticity of the
Bei dieser Konstruktion bewirkt ein Verdrehen des Bolzens 82 die Vergrößerung oder Verkleinerung des Abstandes zwischen dem Fußlagerelement 92 und der Grundplatte 28, so dass der Fuß 30 von der Grundplatte 28 her gesehen abgesenkt oder angehoben werden kann. Hieraus resultiert eine weitere Beweglichkeit bzw. Verstellbarkeit des Fußlagerelements 92 bzw. des Fußes 30 in Längsrichtung seiner Befestigung, also in Längsrichtung des Bolzens und senkrecht zur horizontalen Befestigungsebene.In this construction, twisting the
Mit der in zwei Richtungen (x, y) horizontalen mechanischen Verstellbarkeit und der Beweglichkeit durch das elastische Fußlagerelement und der Höhenverstellbarkeit z durch den Bolzen 82 ist der Fuß 30 demnach bei dieser Ausführungsform in drei Richtungen beweglich bzw. verstellbar und kann so große Fertigungstoleranzen ausgleichen und immer für einen geeigneten Aufstellwinkel des Hilfshubwerkes sorgen. Diese Verstellbarkeit erfolgt durch Normteile wie Schrauben, Scheiben und Muttern und ist deshalb in einfacher Weise herstellbar; sie kann auch große Einstellbereiche, beispielsweise +/- 15 mm sowohl in der horizontalen Ebene als auch in der hierzu senkrechten Längsrichtung bereitstellen. Speziell kann dazu, wie in der
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EP10173822.7A EP2423149B1 (en) | 2010-08-24 | 2010-08-24 | Mounting for an auxiliary lifting device on a mobile crane |
CA2748068A CA2748068A1 (en) | 2010-08-24 | 2011-08-05 | Assembling an auxiliary lifting unit on a mobile crane |
JP2011180365A JP5607588B2 (en) | 2010-08-24 | 2011-08-22 | Assembling the auxiliary lift unit to the mobile crane |
CN201110243390.1A CN102442613B (en) | 2010-08-24 | 2011-08-23 | Assembling an auxiliary lifting unit on a mobile crane |
US13/216,083 US9394146B2 (en) | 2010-08-24 | 2011-08-23 | Assembling an auxiliary lifting unit on a mobile crane |
KR1020110084442A KR20120019400A (en) | 2010-08-24 | 2011-08-24 | Assembling an auxiliary lifting unit on a mobile crane |
BRPI1104776-3A BRPI1104776A2 (en) | 2010-08-24 | 2011-08-24 | mounting system, installation and support bracket for a mobile crane auxiliary lifting unit, and method for mounting a mobile crane auxiliary lifting unit |
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Also Published As
Publication number | Publication date |
---|---|
JP2012051732A (en) | 2012-03-15 |
CA2748068A1 (en) | 2012-02-24 |
JP5607588B2 (en) | 2014-10-15 |
CN102442613B (en) | 2015-01-28 |
BRPI1104776A2 (en) | 2013-02-13 |
US20120118846A1 (en) | 2012-05-17 |
KR20120019400A (en) | 2012-03-06 |
CN102442613A (en) | 2012-05-09 |
EP2423149B1 (en) | 2016-11-23 |
US9394146B2 (en) | 2016-07-19 |
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