DE6610319U - TRANSPORTABLE CRANE WITH TELESCOPIC MAST. - Google Patents

Description

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/ Transportable crane with telescopic mast χ

: The invention relates to a transportable crane ! with telescopic mast.

¹ Ss such, xait a telescopic mast equipped j transportable cranes are known in which a boom is hinged to the extendable part of the telescopic mast, which can be folded for transport to the lying telescopic mast J * There are also known cranes in which the boom consists of two collapsible elements that are hinged together and for the purpose ^! of the transport are folded, whereby the ^; folded elements of the boom can be folded onto the horizontal, telescopic mast · With these known; The outer element of the boom has a crane

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Floor roller and has a trolley whose pull rope is over a pulley located in front of the trolley and assigned to the boom tip is guided. With this well-known Embodiment, a collapse of the crane for the purpose of transport is possible without difficulties, since all Parts of the crane are articulated together.

; In such cranes, where a great length of the

Boom is required, the boom consists of several Elements, namely from an element which is permanently hinged to the extendable part of the telescopic mast and which has its length less than the length of the retracted telescopic mast corresponds, and from in the sail two more elements. When the crane is in operation, one can be moved along the boom Trolley arranged, which is displaceable on the boom by means of a pull rope, the pull rope over a pulley attached to the tip of the boom is guided. It's over with these well-known cranes Transport reasons necessary to dismantle the two outer boom elements for the purpose of transport, so they can be picked up on a tow vehicle. This dismantling is the case with the known cranes because of the fixed arrangement of the pulley for the trolley required., the one used to adjust the trolley Remove the pull rope and also the load rope from the Holle and

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to attach these ropes to the boom when the crane is set up again. Such disassembly is relatively expensive, both in dismantling and reconstruction; also, errors can occur during rebuilding occur when the operating personnel does not attach the ropes in the correct position and position.

The present invention adopts one such a transportable crane equipped with a telescopic mast from, whose boom consists of several elements for the purpose of transport with the exception of the one on the telescopic mast hinged element must be dismantled. It is based on the task of training such a crane in such a way that that the dismantling and the reconstruction take the least possible time, and that in the reconstruction one incorrect arrangement of the ropes is excluded.

This task is achieved according to the invention in that the Deflection roller is arranged on a support part which is movably and lockably mounted along the boom.

Another feature is that the support part has a shackle for fastening the load rope.

It is also essential that the support part also the

! Has floor roll. - 4 -

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By, the inventive design and arrangement of Deflection pulley it is possible, before dismantling, the deflection pulley with the rope on the non-removable first To move the element of the boom that is directly linked to the extendable part of the telescopic mast This has the major advantage that the ropes do not have to be dismantled when the crane is being transported. since the deflection roller is fastened on a supporting part which is movably arranged on the boom and which is on the boom slidable and can be pushed onto the first element of the boom before dismantling, so that the two outer elements of the boom can be easily dismantled without a solution of the ropes and the Pulley is required.

The invention is further characterized in that the immediate provided with locking devices linked to the extension element of the boom and the base mast are that fix the element and the extension in their position when the intermediate part is withdrawn, and when the intermediate part and the extension are extended again, the Auelegers unfolds completely allow the outer element of the boom on the rollers to move into the vertical position α

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Another feature of the invention is that the locking devices consist of retractable latches.

ladder is can drawing that guiding devices for horizontal sliding displacement of the boom on the mast are provided.

Next is from. Significance that guiding facilities to enable the horizontal sliding displacement of at least one part of the telescopic mast with respect to the one surrounding it Maatteil are provided.

Another feature of the invention is that the Guide devices are formed by rollers, which are mounted on the side of the base mast which is adjacent to the boom in the folded position of the crane is.

It is also essential that devices for mechanical precipitation of the load container are provided.

The invention also consists in that the filling devices be formed by a bucket which is suspended by means of a cable on an arm which at one end around a

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horizontal axis on the G-Rundmast is pivotable and around this Pivot axis is rotated.

It is also characteristic that the rotation by the telescopic movement of the intermediate part takes place «

Another feature is that the twist is provided by the crane's hoist cable.

It is also essential that the arm is connected to the intermediate part by a cable attached to an intermediate section of the arm;

is bound. ·

Finally, it is also important that the arm is connected to the lifting cable via a cable which is attached at one end the free end of the arm and the other end to the lifting hook is attached, with this cable over near the upper and lower end of the base mast arranged bottle pulling elements runs.

The invention is described below with "reference to

The drawing, explained by way of example, shows;

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Fig. 1 1 «· · · t · *« 1
44 «# 4 t II *
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«. II. . . <..., * « _? £ - 7 - // 3 a schematic view of the Kraus in Fig. 2,
3 and 4 folded state, schematic views showing different Fig. 5 Mg. 6 Mg. 7
and 8 successive steps in the j show the position of the crane, Pig. 9 one in the longitudinal axis of the boom ge see view of the removable holder, a profile view of the holder of the Aus casual 5, tfigsao schematic views showing two on consecutive steps i when extending the telescopic mast of the crane show a schematic view of a first Embodiment of the mechanical device services for pulling the load container of the crane, a similar schematic view of a second embodiment of this mechanical • Mulching devices, - 8 - 6610319 ii.io.73

Pig. 11th
and 12

Schematic views of two consecutive Steps for extending the telescopic mast according to one of the embodiment shown in Figs various design modifications.

In Fig. 1 to 4, a transportable crane is shown, which essentially has a movable carriage 1, which is provided with a loading container 2 and carries the telescopic foldable mast 3, which with a boom 4 consisting of several parts hinged to one another is connected. IiuFig. 1 is just the first on are in the end in line with the innermost part 6 of the tslss— copical mast 3 connected boom part 5 visible. As you can see, this part of the boom carries 5 in the transport position at the same time the trolley 7 and a support part or slide 8 provided with baths 14.

This support part is shown on a larger scale in Fig. 5 and consists essentially of a frame 9 'on which a roll 10 with a vertical axis 11 for the cable for moving the trolley 7 along the boom 4' and a fastening 12 for fastening one end of the lifting cable 13 dev trolley 7 and finally a pair of rags 14 are attached

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which a rolling support to facilitate the ■

Form a shift of the boom part to which the holder 8 is attached on the ground. In Fig. 5 this is in section

ι boom part through the two parallel profile iron 15;

and 16 shown. On the holder are facilities for |

Sliding the same along the boom and its attachment to the desired location on this provided. In which illustrated example, the carriage 8 can slide on the profile iron 15 and 16 in that two profile iron 17 and

18 gates are seen in which the profile iron 15 and 16 of the The boom intervene. There are of course not shown locking devices such as screws, wedges etc. In Irig. 6 the fastening 12 of the lifting cable running over the trolley 7 is more clearly visible. This attachment is formed by a shackle made of two parts 19 and 20, which can be rotated against each other, with the! part

19 e.g. carries a fastening loop 21. The baths 14 can of course be replaced by other equivalent support members, e.g. rollers, rollers, etc.

In Fig. 2, a crane is shown in a first intermediate position when erecting, in which the telescopic mast is in the process of being established. During this process, the carriage 8 provides a support for the first through its baths 14

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Boom part 5 on the ground. Dashed lines are shown two boom parts 22 and 23 lying on the ground, which are attached to the free end of the boom part 5 are connected, in Fig. 3 is the telescopic mast 3 in a more inclined Positioned so that all parts of the boom 4 can be brought into alignment, and the carriage 8 is moved along this boom up to the free ünde 24 of the same. During this sliding displacement, the lifting cables have become and unwound the cable for moving the trolley, accompanying the sliding movement of the carriage 8. At the At the end of 24 of the boom, the trolley 7 is also shown, over which the cables shown schematically in dashed lines to run. You can see in Pig. 4, that the boom 4 can now be seen during the next operation for extending the telescope The mast ax its end 24 over the wheels 14 of the carriage 8 supported on the ground.

7 and 8 then show the crane during the next processes, which correspond to the extension of the telescopic mast 3. In the example shown, this mast consists of three interlocking parts, namely one Base mast 26, an intermediate part 27 and an upper extension 28. Hachdem the mast 3 in the vertical position was brought, the intermediate part 27, in which

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- lino ch d: ie the extension 28 is pulled out of the Grimdmast 26 'by means of a cable which is driven by the winch of the crane and runs over not shown plaschenzugelemente, which are attached to the base mast and, for example, to the lower part of the intermediate part 27 . The boom part 5 then hangs freely along the mast 3, and there are j locking devices j interacting with one another

for example at 29 on an intermediate section of the base mast 26 or at the end of the boom part 5, so that it is possible to fasten the Aualegegteil 5 to the base mast 26 by means of these devices 29. Under these conditions \

The extension 28 remains with its upper on the boom;

j part 5 hinged end to this now attached boom- j part 5 suspended, and by slackening the cable, which was used to raise the intermediate part 27, this can be lowered back into its original position, as in FIG Pig. 8 shown. It is clearly visible on this Pigur that the extension 28 then emerges from the intermediate part 27 is pulled out and in this position on the intermediate part 27 with the aid of not shown on the parts 27 and 29 attached to each other cooperating blocking devices can be attached. If then they with each other cooperating blocking devices 29 are released, the intermediate part 27 can be raised again by means of the winch of the crane, with the end 24 of the boom 4 on the

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The floor 31 is displaced with the aid of the baths 14 of the carriage 8 until the intermediate part 27 is pulled out of the base mast 26 is. It is then sufficient to place the intermediate part 27 in this position in the base mast 26 with the aid of devices (not shown) to block and to complete the erection by lifting the boom 4 and placing it in the horizontal position Bringing working position.

The devices for mutual locking of the sliding parts of the telescopic mast can be retractable be remotely operated pawls if necessary. Likewise, the devices 29 for blocking the delivery part »5 on the Basic mast retractable pawls or locking devices with wedges or any other equivalent Be mean, if necessary, soften with another an intermediate section of the boom part 5 arranged attachment point to be completed.

This arrangement for extending the telescopic mast using a boom part is apparently also applicable to cranes applicable, their telescopic mast as well as the foldable one Boom consist of any larger number of parts than in the example shown. With these design modifications The blocking devices can of course be provided on an intermediate part of the boom

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which of the direct with the telescopic Mast connected 2eil 5 is different.

In Pig. 11 and 12 shown embodiment modification ) the telescopic mast can be extended without any cable if necessary. Taking the exit from the in Fig. 3

position shown, in which the boom parts 23, 22 and 5 are combined, the carriage 8 was brought to the free end 24 of the boom 4, which is then returned to the horizontal position in which it is on the also in the horizontal telescopic position Mast lies, as in Pig. 11 shown «As can be seen from this figure, guide means, such as rollers 46 and 47 are provided j. in order to facilitate the displacement of the boom 4 in relation to the telescopic mast. Likewise, guide means, for example a roller 48, are provided which are, for example, firmly connected to the foot of the extension 28 and facilitate the displacement of the extension with respect to the intermediate part 27 when the telescopic mast is in the horizontal position. When the crane is then brought into the position shown in FIG. 1, it is sufficient to place your hand on the end 24 of the boom 4 in the direction of the end 6

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of the telescopic mat 3 to push the boom 4 at the microscopic a. To roll along mast 3, taking the at its end 6 attached extension 28 takes with it. In Fig. 12 is the state of the crane after this operation shown, in which case the extension 28 is pulled out of the intermediate part 27. This extension can then be converted into this position with the intermediate part 27 by any Yerriggelmittel be connected, such as bolts, tabs, retractable latches, etc.> Furthermore, the extension of the telescopic mast can be completed if necessary, by pulling out the other sliding files of the mast 3 in the same way. The full or partial 'Extended telescopic mast 3 is then brought into the vertical position, whereupon the boom 4 by the usual Lifting devices is brought into the working position.

Figures 9 and 10 show two embodiments of mechanical games;

Means for mechanically filling the loading container 2. i

In the first embodiment shown in FIG. 9, is on an intermediate point 32 of the (round mast 26 a to a level ι

right pivot axis rotatable arm 33 articulated. At the free end 34 of this arm is a filling bucket by means of a cable 33

36 attached, its opening and closing if necessary

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can be controlled by means of a cable running through points 32 and 34. At a point 37 of the arm 33 ■

ι a cable 38 is attached, the other end of which is connected to one of the j sliding parts of the mast, e.g. at the upper end 39 of the intermediate part 27

partly 27 from the base mast 26 apparently comes with a suitable ί Dimensioning of the arm 33 and the cable 38 of the filling tub 36 ί via the loading container 2 · It can then be as explained above Device for erecting the telescopic mast, in which the intermediate part 27 is a reciprocating ascending and performing a descending movementJ in order to simultaneously fill the load retainer,

In the embodiment shown in FIG. 10, the rotation of the arm 33 carrying the cube 5b takes place about its own horizontal pivot axis 32 through the lifting cable 40, which, as stated above, is permanently attached to the trolley of the crane boom. In this embodiment ν binds an intermediate cable 41 which is attached via e.g. Pulley elements £ 2, 43 and 44 runs, the end of 34 of the Arms 33 with lifting hook 45.

Patent attorneys

Seiler, Pfenning, Meinig

661031911.10.73

Claims (14)

1. Transportable crane with telescopic mast, its extendable Part of a boom that can be folded up on the horizontal mast for transport and its elements can be folded up carries, which is provided with a ground roller and a trolley, the pull rope over a front of the trolley on the boom arranged pulley is guided, thereby characterized in that the deflection roller (10) on a removable and in its position on the boom (4, 5) adjustable holding member (8) is arranged. 2. Crane according to claim 1, characterized in that the holding member (8) has a shackle (19, 20) for fastening the load rope. 3. Crane according to claim 1, characterized in that the support member (8) also has a bottom roller (14), 661031911,10.73 4th crane after. Claim 3 ₅ , characterized in that the element (5) of the jib (4) hinged directly to the extension (28) and the base mast (26) are provided with blocking devices (29) which hold the element (p) and fix the extension (28) in its position when the intermediate part (27) is withdrawn, and which, when the intermediate part (27) and the extension (28) are extended again, allow the boom (4) to be completely unfolded, the outer element ( 23) of the boom (4) on the clump (14) moves into the vertical position. 5. Crane according to claim 4, characterized in that the blocking devices (29) consist of retractable pawls exist. 6. Crane according to claim. 1 to 5, characterized in that ! Guide s devices (46, 47) for the horizontal sliding Displacement of the boom on the mast are provided. 7 · Crane according to claims 1 to 6, characterized by a guide device en (48) to enable the horizontal sliding displacement of at least a part (28) of the telescopic Mast (3) opposite the mast part (27) surrounding it. 661031911,10.73 8. Crane after. Claim 6, characterized in that the guide devices by. Rolls are formed, which are attached to the side of the base mast (26) which the Boom (4) in the folded position of the crane is adjacent. 9. Crane according to claim 1 to 8, characterized by devices for mechanical filling of the loading container (2). 10. Crane according to claim 9 _5, characterized in that the Füllein directions are formed by a bucket (36), weclher is suspended by means of a cable on an arm (33) which at one end about a horizontal axis (32) on the base mast (26) is pivotable and is rotated about this pivot axis (32). 11. Crane according to claim 10, characterized in that the rotation takes place by the telescopic movement of the intermediate part (27). 12. Crane according to claim 10, characterized in that the rotation takes place through the lifting cable (40) of the crane. 13 »Crane according to claim 10, characterized in that the arm (33) with the intermediate part (27) through an at an intermediate section (37) of the arm attached cable (38) is connected 661031911.10.73 14. Crane according to claim. 12, characterized in that the arm (33) is connected to the lifting cable via a cable (4-1), which is attached at one end to the free end (34) of the arm and at the other end to the lifting hook (45), said cable (41) via pulley elements arranged in the vicinity of the upper and lower ends of the base mast (42, 43, 44) is running. Patent attorneys Seiler, Pfenning, Meinig §61031911,10.73