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Crane boom segment for assembly of a crane boom, method for assembling a crane boom

A technology of cranes and booms, applied in the direction of cranes, etc., can solve problems such as lifting, errors, and large time consumption

Active Publication Date: 2016-06-22
ITREC BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Making the large number of required connections of structural elements on site can be a time-consuming and labor-intensive build, and the possibility of errors in assembly rises

Method used

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  • Crane boom segment for assembly of a crane boom, method for assembling a crane boom
  • Crane boom segment for assembly of a crane boom, method for assembling a crane boom
  • Crane boom segment for assembly of a crane boom, method for assembling a crane boom

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Embodiment Construction

[0083] exist figure 1 A crawler crane 1 is shown, which is designed to lift loads of several hundred metric tons. The crane 1 shown is a self-propelled crane and has a mobile base structure 2 which enables the crane to move along a surface 9 . In many cases the surface is the ground possibly reinforced by suitable foundations, but the use of the crane on large pontoon bridges and the like is also envisaged.

[0084] A rotating superstructure 3 is mounted on the base structure 2 so that the superstructure 3 can rotate relative to the base structure 2 about a vertical axis of rotation A.

[0085] The crane 1 further has a boom 4 and a stern mast 5 . One end 4e of the boom is hinged to the superstructure 3 so as to pivot the boom 4 about a horizontal pivot axis 6 . The stern mast 5 is also hinged to the superstructure 3 about a horizontal pivot axis 7 . Furthermore, a fly jib arrangement 8 is provided which comprises an arm 8a and brackets 8b, 8c, both of which are pivotally ...

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PUM

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Abstract

The invention provides a crane boom segment for assembly of a crane boom, a method for assembling a crane boom. Crane boom segment (20) for assembly of a crane boom by interconnection of multiple crane boom segments from a transport configuration to an operational configuration. The crane boom segment (20) comprises a first and second planar latticed truss (21, 22), each with two chords (21 a, 21 b, 22a, 22b) between which permanent lacing elements (21c, 22) extend, wherein both chords of each planar latticed truss (21, 22) comprise segment connection parts (26) at their head ends allowing crane boom segments to be connected to each other in series, and wherein in the operational configuration the first and second planar latticed trusses are provided at opposite sides of the longitudinal axis of the crane boom segment (40). A crane boom segment (40) further comprises a first and second lattice web (23, 24), each lattice web (23, 24) connectable to one of the chords of the first planar latticed truss (21, 22) and one of the chords of the second planar latticed truss. The invention also relates to a modular crane (90), comprising a travelling base frame (95) which allows for travel of said crane over a surface, and a crane boom assembled from crane boom segments, one end of the crane boom being hingedly connected about a substantially horizontal pivot axis, to said travelling base frame.

Description

technical field [0001] The invention relates generally to the field of cranes for lifting heavy loads and, more particularly, to cranes for assembling crane booms by interconnecting a plurality of crane boom sections from a transport configuration to a working configuration boom section. Crane booms generally consist of individual crane boom sections connected at the ends. Boom segments are typically formed to a specific length, eg 10, 20, 40 ft. Thereby, the length of the boom of the crane can be adjusted to suit each individual lift. Background technique [0002] The crane boom segment has a substantially rectangular cross-section and a longitudinal axis. In general, crane boom sections are known which include: [0003] · first and second planar lattice trusses, wherein each planar lattice truss has two chords between which permanent lattice elements extend; wherein the two planar lattice trusses Each chord includes a segment connecting member at its front end to enab...

Claims

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Application Information

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IPC IPC(8): B66C23/70B66C23/28B66C23/36
CPCB66C23/365B66C23/70
Inventor J·勒登贝格G·斯豪滕
Owner ITREC BV
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