MOBILE CRANE, MOBILE CRANE SYSTEM AND METHOD FOR ADDING AND REMOVING GUYING EQUIPMENT TO AND FROM A MOBILE CRANE

Abstract

A mobile crane comprising a telescopic boom which has a main casing with linearly moveable inner casings. Guying equipment can be added to the telescopic boom, where at least one securing region arranged on the main casing is provided for the fixing of the guying equipment. In order for the adding and removal of the guying equipment to and from from mobile crane to be carried out more easily and safely, at least one coupling region is arranged on one of the inner casings for adding and/or removing the guying equipment and which can be connected to the same. In this way, the guying equipment can be received directly from a transport unit by the at least partially extended telescopic boom, the guying equipment can be moved onto the main casing by retracting the telescopic boom and coupled to the same.

Claims

1. A vehicle crane system comprising: a vehicle crane, the vehicle crane comprising a telescoping jib which has a basic box with linearly displaceable inner boxes, wherein the telescoping jib is configured to be equipped with a bracing apparatus; at least one fastening region is arranged on the basic box, wherein the fastening region is configured to fix the bracing apparatus; and wherein at least one coupling region is arranged on one of the inner boxes and is configured to be connected to the bracing apparatus for the purpose of rigging and/or de-rigging the bracing apparatus.

2. The vehicle crane system as claimed in claim 1, wherein the coupling region is arranged on a free end portion of an inner box.

3. The vehicle crane system as claimed in claim 2, wherein a first inner box is supported directly on the basic box, and wherein the coupling region is arranged on the first inner box.

4. The vehicle crane system as claimed in claim 1, further comprising the bracing apparatus and a transport unit configured to transport the bracing apparatus.

5. The vehicle crane system as claimed in claim 4, wherein the bracing apparatus has a first connection region corresponding to the coupling region of one of the inner boxes of the telescoping jib of the vehicle crane and has a second connection region corresponding to the fastening region of the basic box of the telescoping jib of the vehicle crane.

6. The vehicle crane system as claimed in claim 5, wherein the first connection region and the second connection region of the bracing apparatus are arranged next to one another.

7. The vehicle crane system as claimed in claim 4, wherein the bracing apparatus and/or the transport unit has at least one support via which the bracing apparatus can be supported over a loading surface of the transport unit, thus forming a free space.

8. A method for transferring a bracing apparatus from a transport unit of a vehicle crane system to a telescoping jib of a vehicle crane, said method comprising: providing the transport unit having the bracing apparatus, received thereon, in the region of the vehicle crane; arranging the transport unit and telescoping jib relative to one another such that a longitudinal direction of the bracing apparatus is oriented with respect to a longitudinal direction of the telescoping jib; before or after the arranging the transport unit step, orienting a longitudinal direction of the telescoping jib towards a free space located between a loading surface of the transport unit and the bracing apparatus; extending at least one inner box of the telescoping jib into the free space; orienting the telescoping jib until a first connection region of the bracing apparatus is aligned with a coupling region of an inner box; coupling the first connection region of the bracing apparatus to the coupling region of the inner box; retracting the at least one inner box with simultaneous displacement of the bracing apparatus away from the transport apparatus towards the vehicle crane; terminating the retraction of the at least one inner box as soon as a second connection region of the bracing apparatus is aligned with a fastening region of a basic box of the telescoping jib; coupling the second connection region of the bracing apparatus to the fastening region of the basic box; and releasing the coupling between the first connection region of the bracing apparatus and the coupling region of the inner box.

9. The method as claimed in claim 8, wherein during or after the retraction of the telescoping jib, a support configured to support the bracing apparatus on the loading surface of the transport unit is pivoted from a usage position to a non-usage position.

10. A method for transferring a bracing apparatus from a basic box of a telescoping jib of a vehicle crane to a transport unit of a vehicle crane system, said method comprising: providing the transport unit in the region of the vehicle crane; retracting or extending the telescoping jib as required until a first connection region of the bracing apparatus is aligned with a coupling region of an inner box of the telescoping jib; coupling the first connection region of the bracing apparatus to the coupling region of the inner box; decoupling a second connection region of the bracing apparatus from a fastening region of the basic box; subsequently or previously arranging a transport apparatus and the telescoping jib relative to one another such that a longitudinal direction of the telescoping jib is oriented with respect to the longitudinal direction of a loading surface of the transport unit; extending at least the inner box of the telescoping jib coupled to the bracing apparatus while simultaneously displacing the bracing apparatus away from the vehicle crane towards the loading surface of the transport unit; terminating the extension of the telescoping jib as soon as the bracing apparatus is arranged on or above the loading surface of the transport unit; orienting the telescoping jib as required such that the bracing apparatus is placed down on the loading surface of the transport unit; decoupling the first connection region of the bracing apparatus from the coupling region of the inner box; retracting the telescoping jib until it is at least removed from a free space located between the loading surface of the transport unit and the bracing apparatus (9); previously or simultaneously orienting the telescoping jib as required in such a way that it has no contact with the bracing apparatus.

11. The method as claimed in claim 10, wherein during or after the extension of the telescoping jib, a support configured to support the bracing apparatus on the loading surface of the transport unit is pivoted from a non-usage position to a usage position.

12. The method as claimed in claim 10, wherein the step of orienting the telescoping jib as required such that the bracing apparatus is placed down on the loading surface of the transport unit comprises luffing the telescoping jib as required, and wherein the step of previously or simultaneously orienting the telescoping jib as required in such a way that it has no contact with the bracing apparatus comprises previously or simultaneously luffing the telescoping jib as required.

13. The method as claimed in claim 8, wherein the step of orienting the telescoping jib until a first connection region of the bracing apparatus is aligned with a coupling region of an inner box comprises luffing the telescoping jib until a first connection region of the bracing apparatus is aligned with a coupling region of an inner box.

14. The vehicle crane system as claimed in claim 6, wherein the first connection region and the second connection region of the bracing apparatus are arranged directly next to one another.

15. The vehicle crane system as claimed in claim 7, wherein the at least one support comprises a pivotable support.

16. The vehicle crane system as claimed in claim 3, further comprising the bracing apparatus and a transport unit configured to transport the bracing apparatus.

17. The vehicle crane system as claimed in claim 16, wherein the bracing apparatus has a first connection region corresponding to the coupling region of one of the inner boxes of the telescoping jib of the vehicle crane and has a second connection region corresponding to the fastening region of the basic box of the telescoping jib of the vehicle crane.

18. The vehicle crane system as claimed in claim 17, wherein the first connection region and the second connection region of the bracing apparatus are arranged next to one another.

19. The vehicle crane system as claimed in claim 18, wherein the first connection region and the second connection region of the bracing apparatus are arranged directly next to one another.

20. The vehicle crane system as claimed in claim 16, wherein the bracing apparatus and/or the transport unit has at least one support via which the bracing apparatus can be supported over a loading surface of the transport unit, thus forming a free space.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG. 1 shows a vehicle crane in accordance with the invention in a side view;

[0029] FIG. 2 shows a vehicle crane system in accordance with the invention comprising the vehicle crane of FIG. 1 in a side view;

[0030] FIG. 3 shows the vehicle crane system of FIG. 2 with a changed orientation of a telescoping jib of the vehicle crane;

[0031] FIG. 4 shows the vehicle crane system of FIG. 3 with a changed position of the vehicle crane;

[0032] FIG. 5 shows the vehicle crane system of FIG. 4 in an intermediate position during extension of the telescoping jib;

[0033] FIG. 6 shows the vehicle crane system of FIG. 5 in an end position of the extended telescoping jib;

[0034] FIG. 7 shows the vehicle crane system of FIG. 6 in a first connected state of the telescoping jib with an attachment part to be received;

[0035] FIG. 8 shows the vehicle crane system of FIG. 7 in an intermediate position during retraction of the telescoping jib with a received attachment part;

[0036] FIG. 9 shows the vehicle crane system of FIG. 8 in an end position of the retracted telescoping jib with a received attachment part;

[0037] FIG. 10 shows the vehicle crane system of FIG. 9 in a second connected state of the telescoping jib with the received attachment part;

[0038] FIG. 10 shows the vehicle crane system of FIG. 9 in a second connected state of the telescoping jib with the received attachment part; and

[0039] FIG. 11 shows the vehicle crane system of FIG. 10 in a partially unconnected state of the telescoping jib with the received attachment part.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0040] FIG. 1 shows the structure of a vehicle crane 1 in accordance with the invention which is parked on ground U and comprises a telescoping jib 2 which extends in the present case in parallel with a horizontal direction X. The vehicle crane 1 has a lower carriage 3 which, in the example shown here, comprises a wheeled running gear unit 4 which includes a total of six axles 4a to 4f each having at least two rubber-tyred wheels 5 mounted to be rotatable on the axles and spaced apart from one another in parallel with a transverse direction Y. Arranged on the lower carriage 3 is a superstructure 6 which carries the telescoping jib 2 and can be rotated relative to the lower carriage 3 about an axis of rotation Z1 extending in parallel with a substantially vertical upwards direction Z. The telescoping jib 2 extending in its longitudinal direction X1 is articulated correspondingly in a luffable manner on the superstructure 6 via a horizontal pivot axis Y1 extending in the transverse direction Y.

[0041] To illustrate the structure of the telescoping jib 2, it is shown in a state where it is extended to a limited extent. This shows that a basic box 2a of the telescoping jib 2 articulated to the superstructure 6 includes a plurality of inner boxes 2b to 2e. Owing to their stepped cross-sections matched to one another, said inner boxes 2b to 2e are arranged one inside the other and within the basic box 2a such that these can be displaced, in particular can be hydraulically retracted and extended, accordingly linearly in the longitudinal direction X1 of the telescoping jib 2. It is evident that the basic box 2a has a fastening region 7 which is indicated in the present case by two circles lying one above the other and is arranged on a free end portion of the basic box 2a. The first inner box 2b which is directly supported on the basic box 2a has a coupling region 8 which in the present case is likewise indicated by two circles lying one above the other and is arranged on a free end portion of the first inner box 2b. The fastening region 7 of the basic box 2a and the coupling region 8 of the first inner box 2b are used for simple rigging and de-rigging of the mobile crane 1 in relation to a bracing apparatus 9 which is not yet evident here, as will be made clearer hereinunder.

[0042] FIG. 2 shows a vehicle crane system 10 in accordance with the invention which comprises the vehicle crane 1 in accordance with the invention explained in more detail above with reference to FIG. 1, as well as a transport unit 11 together with the aforementioned bracing apparatus 9. By way of example, the transport unit 11 shown in this case has a towing vehicle 11 a which is coupled to a semi-trailer 11b. In this case, the bracing apparatus 9 is arranged on a loading surface 11c of the transport unit 11, in particular its semi-trailer 11b, so that it can be transported separately from the vehicle crane 1 to and from its respective place of usage. The bracing apparatus 9 which is also referred to as the lateral superlift jib lies with one of its end regions on the loading surface 11c, while its opposite end region is supported on the loading surface 11c via a support device 12. The bracing apparatus 9 typically consists of a semi-annular connection element, one or two bracing supports arranged in a pivotable manner thereon and in each case a pivot-out drive therefor. As a result, the part of the bracing apparatus 9 supported in this way is located accordingly in a spaced manner above the loading surface 11c, thus forming a free space R. By way of example, the support device 12 is allocated in this case to the transport unit 11, in particular its semi-trailer 11b, to which it is pivotably connected. In the present case, the support device 12 is in its usage position P1 which refers to its extension which is substantially vertical and thus in parallel with the upwards direction Z.

[0043] Looking at the part of the bracing apparatus 9 lying on the loading surface 11c of the transport unit 11, it becomes clear that it has two connection regions 13, 14, each indicated in the present case as circles lying one above the other on the connection element. The connection regions 13, 14 are arranged and formed in such a way that the first connection region 13 corresponds to the coupling region 8 provided on the first inner box 2b of the telescoping jib 2, while the second connection region 14 arranged immediately adjacent to the first connection region 13 corresponds to the fastening region 7 located on the basic box 2a of the telescoping jib 2.

[0044] With reference to the further FIGS. 3 to 11, the rigging of the vehicle crane 1 with the bracing apparatus 9 located on the transport unit 11 is described in more detail hereinafter, while the de-rigging of the vehicle crane 1 can be performed analogously in the correspondingly reverse order.

[0045] FIG. 3 shows the vehicle crane system 10 already shown in FIG. 2, with its vehicle crane 1 and transport unit 11 arranged with respect to one another. Compared to the illustration in FIG. 2, the superstructure 6 of the vehicle crane 1 has been rotated by 180° and so the longitudinal direction X1 of the telescoping jib 2 is oriented towards the longitudinal direction of the bracing apparatus 9. It can be seen that the free end of the telescoping jib 2 now points in the direction of the free space R between the loading surface 11c and the bracing apparatus 9, for which reason the telescoping jib 2 has been luffed slightly downwards from its previous horizontal extension. The arranging and orientation of the vehicle crane 1 and the transport unit 11 are effected by their corresponding movement and/or the orientation of the telescoping jib 2.

[0046] FIG. 4 illustrates the approach, which is performed by way of example in this case in reverse, of the vehicle crane 1 closer to the transport unit 11 (indicated by the arrow), whereby the telescoping jib 2 which is still retracted protrudes at least in part into the free space R and is received under or between the bracing support(s) of the bracing apparatus 9.

[0047] FIG. 5 shows an intermediate station of the telescoping jib 2 being extended (indicated by an arrow), which in the example shown in this case is limited to the linear displacement of the first inner box 2b relative to the basic box 2a.

[0048] FIG. 6 shows the end position of the extended telescoping jib 2 (indicated by arrow) required for rigging. Subsequently or simultaneously, the telescoping jib 2 is oriented e.g. by luffing it such that the first connection region 13 of the bracing apparatus 9 is aligned with the coupling region 8 of the first inner box 2b.

[0049] FIG. 7 illustrates the subsequent coupling of the first connection region 13 of the bracing apparatus 9 with the coupling region 8 of the inner box 2b, in that the first connection region 13, which was previously only indicated by two circles, is now shown with two black spots. In other words, the bracing apparatus 9 is now connected to the first inner box 2b of the telescoping jib 2, preferably via corresponding bolts. Now the telescoping jib 2 is slightly luffed up so that the bracing apparatus 9 is lifted off the loading surface 11c of the transport unit 11 and the support device 12. The one or the two bracing supports of the bracing apparatus 9 are preferably supported via a roller on the top side of the basic box 2a. The bracing supports of the bracing apparatus 9 can also be supported in a cantilever manner on the connection element of the bracing apparatus 9 and maintain a spaced interval from the basic box 2a.

[0050] FIG. 8 shows the retraction of the telescoping jib 2, in particular its first inner box 2b. By reason of the coupling with the bracing apparatus 9, the latter is simultaneously displaced away from the loading surface 11c of the transport unit 11 towards the vehicle crane 1 (indicated by arrow). At a suitable point in time, the support device 12 is pivoted from its usage position P1 to a substantially horizontal non-usage position P2 with respect thereto (as indicated by a curved arrow).

[0051] FIG. 9 illustrates the further retraction of the telescoping jib 2 to an end position (indicated by arrow). In this end position, the second connection region 14 of the bracing apparatus 9 and the fastening region 7 of the basic box 2a of the telescoping jib 2 are aligned with one another. If required, their aligned orientation must be adjusted by correspondingly linearly displacing the first inner box 2b relative to the basic box 2a.

[0052] FIG. 10 shows the transfer of the bracing apparatus 9 to the basic box 2a of the telescoping jib 2 which is associated with a coupling of the second connection region 14 of the bracing apparatus 9 with the fastening region 7 of the basic box 2a, preferably via bolts. In the present case, this is illustrated by the fact that the second connection region 13 which was previously indicated only by two circles is now likewise shown with two black spots.

[0053] FIG. 11 shows the end of the rigging process, in which the transport unit 11 is removed e.g. from the vehicle crane 1 (indicated by arrow). In order to restore the linear mobility of the telescoping jib 2, the coupling between the first connection region 13 of the bracing apparatus 9 and the coupling region 8 of the inner box 2b, as required to receive the bracing apparatus 9, is now released. In order to indicate this, the corresponding black spots have been replaced in the present case by circles.

[0054] As already indicated, the bracing apparatus 9 is transferred from the telescoping jib 2 of the vehicle crane 1 back to the transport unit 11 in the reverse manner, as already shown in the rest of the description and which can be followed in a logical manner using FIGS. 1 to 11 explained herein. For this purpose, the telescoping jib 2 is, inter alia, initially retracted or extended until the first connection region 13 of the bracing apparatus 9 is then aligned with the coupling region 8 of the first inner box 2b of the telescoping jib 2 so that they can be coupled together. Subsequently, the second connection region 14 of the bracing apparatus 9 is then decoupled from the fastening region 7 of the basic box 2a, and so the bracing apparatus 9 can be displaced away from its basic box 2a by extension of the telescoping jib 2. Placing the bracing apparatus 9 down on the loading surface 11c of the transport unit 11 and detaching it from the first basic box 2b follow logically from the foregoing.