The invention provides a following lifting or internal climbing type self-discharging crane arm. One end of a cargo boom is fixed to a supporting column of a crane arm bearing. The cargo boom is formed by splicing a plurality of arm sections I. Every two adjacent arm sections I are connected through a self-dismounting screw device. The two sides of the cargo boom are each provided with a steel cable I as a guide rail in a pulling manner. The arm sections I are provided with guide wheel sets I matched with the steel cables I respectively. The guide wheel sets I can roll along the steel cables I. One ends of the steel cables I are fixed to a stand column, and the other ends of the steel cables I are gathered at the far end of the cargo boom. Each arm section I is provided with a steel cable III in a pulling manner. One end of each steel cable III is connected with one corresponding arm section I, and the other end of each steel cable III is wound on a winch. A tower crane cross arm is demounted through the steel cables and the guide wheel sets, so that demounting work is simplified, and convenience and reliability are achieved.
Following lifting or internal climbing type self-discharging crane arm
2016-02-17
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |
European Patent Office | 2022
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