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Tower crane

A technology of tower cranes and tower cranes, applied in the field of rotary tower cranes, to achieve the effect of high lifting height, large load, and flexible ballasting feasibility

Active Publication Date: 2019-05-24
LIEBHERR WERK BIBERACH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although the current tower cranes are still able to meet the proposed requirements, they will encounter their technical limits in the near future

Method used

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Examples

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Embodiment Construction

[0029] The crane according to the invention comprises a crane tower 1 composed of a plurality of tower body parts 11 . The pendant 1 is supported at the bottom by means of a chassis 2 . As an alternative to the chassis, it is also possible to use connecting parts (not shown) reinforced by pouring concrete.

[0030] first with the help of figure 1To illustrate the basic structure of the crane. On the spire, a rotatable and climbable climbing mechanism 3 is installed around the tower body 1 . The climbing mechanism 3 can move vertically along the tower body 1 by means of one or more hydraulic cylinders 31 . The hydraulic cylinder 31 is mounted in a suitable brake 12 of the tower body 1 . By means of the rotatable climbing mechanism, the crane becomes an upper-slewing crane.

[0031] Two bearing frames 4, 5 are installed on both sides of the climbing mechanism 3, and the transmission unit, electric switch box and hydraulic cabinet of the crane are installed in it. A frame 5...

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Abstract

The invention relates to a tower crane, in particular a rotary tower crane, comprising a crane tower, which is constructed from a plurality of tower pieces, a main jib, which is arranged at the towertip, and a counter-jib, wherein at least one main lifting cable is guided over the main jib in order to hold a load and at least one counter-jib lifting cable is guided over the counter-jib in order to hold a balancing weight.

Description

technical field [0001] The invention relates to a tower crane, in particular a rotary tower crane, having a tower composed of a plurality of tower parts, with a main suspension arranged on the tower tip and with a corresponding suspension. Background technique [0002] For very high lifting heights and very heavy supported loads, tower cranes are often used. The construction of wind power installations requires precisely large lifting heights and high support loads. At the same time, it is desirable for the hubs of the wind turbines to be installed at higher and higher heights for reasons of efficiency. However, the maximum possible installation height is limited by the available lifting devices. [0003] Although the current tower cranes are still able to meet the proposed requirements, they will encounter their technical limits in the near future. The current form of construction consists of a pendant tower consisting of a latticework with a suspension system fixed to i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/28B66C23/72
CPCB66C23/283B66C23/72B66C23/54B66C23/76
Inventor 埃里克·科尼琴
Owner LIEBHERR WERK BIBERACH
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