Large-scale ultrahigh lift height floating crane

Abstract

The invention discloses a large-scale ultrahigh lift height floating crane. The large-scale ultrahigh lift height floating crane comprises an arm support bracket, an arm support, a small arm support and an A-bracket which are connected in sequence, wherein a main hook pulley system, a dead rope pulley system and a main rigging hook pulley system are arranged on the arm support; an arm support head adjusting mechanism, a dead rope mechanism and an auxiliary winch mechanism are arranged at the root part of the arm support; an assistant hook pulley system, an assistant rigging hook pulley system and an arm support head adjusting pulley system for connecting the arm support and the small arm support are arranged on the small arm support; the arm support bracket is arranged at the bottom of the arm support; a limiting system and a lubricating system are arranged at the connecting part of the arm support and the arm support bracket; a metal structure and a luffing pulley system are arranged on the A-bracket; a ladder platform and a machine room are arranged at the lower part of the A-bracket. The floating crane is high in lifting height and huge in weight, can lift a maximal 3000 ton object to the height of 165 m at a time, and is high in mounting efficiency and low in cost; the original mounting is changed, spud legs of the floating crane are successfully mounted at a time, the cost is lower, and the mounting efficiency is improved.

Description

technical field [0001] The invention relates to a large-scale ultra-high lifting height floating crane used for ocean engineering installation. Background technique [0002] Floating crane is an important equipment for offshore engineering installation, lifting and installation. It is widely used in the installation and construction of offshore oil platforms, especially in the field of offshore engineering lifting operations, such as the installation of offshore platforms, the installation of derricks, etc. Maintenance, installation of offshore wind power equipment, etc.; at the same time, floating cranes are also important equipment for subsea installation. The existing floating cranes are divided into offshore floating cranes and deep sea floating cranes according to their uses. The lifting capacity of the deep sea operation is relatively large, because the lifting capacity of the floating crane directly determines the construction capacity of the floating crane. At ...

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Problems solved by technology

At present, the largest floating crane in China has a lifting weight of 7,500 tons, and the lifting weight of floating cranes in the world is also at the same level. Therefore, in the field of offshore installation, the original floating crane can no longer adapt to the trend of large-scale marine engineering, and the installation efficiency is too low, which seriously restricts the development of marine engineering, and the present invention is suitable for the trend of large-scale marine engineering. Invented a floating crane with a lifting capacity of 3,000 tons and a lifting height of 165 meters, which is tens of meters higher than the existing floating crane, greatly expanding the operating range of the floating crane. Improve the efficiency of installation, reduce the cost of installation, and achieve greater economic benefits

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