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Crane with a boom tensioning device

A crane and jib technology, applied in the field of cranes, can solve problems such as inability to achieve three-dimensional tensioning, and achieve the effects of improving lateral tensioning and good three-dimensional tensioning

Active Publication Date: 2011-05-04
LIEBHERR WERK EHINGEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution also does not allow for optimal three-dimensional tensioning

Method used

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  • Crane with a boom tensioning device
  • Crane with a boom tensioning device
  • Crane with a boom tensioning device

Examples

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Effect test

Embodiment Construction

[0042] figure 1 An embodiment of the crane according to the invention is shown in plan view. Here, a main boom 10 is provided, which is mounted pivotably about an axis 100 on the upper carriage. In addition, a cable jib mechanism 11 is provided, which is likewise articulated on the upper carriage. The main boom 10 may now be in the form of a truss jib.

[0043] Furthermore, the boarding itself is in figure 1 is not shown. The entry carriage is now mounted on an exit carriage, also not shown. Furthermore, a running gear is provided on the lower carriage 52 for traveling the crane, for example a crawler running gear or a plurality of axles with tires.

[0044] A cable winding system is provided between the cable jib mechanism 11 and the main boom 10 . The cable reel system now comprises a first cable 1 which extends from a tension point 50 on the cable jib mechanism 11 to the main boom 10 . Furthermore, the cable reeling system comprises a second cable 1' which extends fr...

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PUM

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Abstract

The present invention relates to a crane with a boom slewable in a vertical pivoting plane and a bracing boom arrangement, particularly a derrick boom arrangement in which a luffing cable is arranged between the boom and the bracing boom arrangement, in which the luffing cable has at least two guying cables that run from two guying points arranged on the opposite side of the pivoting plane, which cables belong to the bracing cable arrangement, to the boom, in which the two guying cables are each movable by means of a winch and in which a mechanical coupling is provided between the two winches by means of which the movement of the two winches can be force coupled.

Description

technical field [0001] The present invention relates to a crane, comprising a top car, the main boom is hinged on the top car so that it can pitch and swing in a vertical pitch plane, and the crane also includes a cable jib mechanism hinged on the top car, especially a boom jib mechanism, Wherein a winding system is provided between the main boom and the cable jib mechanism, and the winding system has at least two wires extending from the tension points of the cable jib mechanism arranged on opposite sides of the pitch plane to the main Boom cable. Background technique [0002] The vertical tensioning of the main boom has the advantage that it also supports the main boom against forces acting vertically to the pitch plane. [0003] Furthermore, such a crane is known from DE 20 2005 009 317 U1. In this case, two jib struts are provided, each of which is articulated to the upper carriage so as to be rotatable about an inclined axis of rotation. At this point, in the forward...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/64B66C23/82
CPCB66C23/82
Inventor H·D·威利姆
Owner LIEBHERR WERK EHINGEN
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