A lightweight multifunctional container gantry crane and its assembly method

Abstract

The invention discloses a lightweight multifunctional container portal crane and an assembly method thereof. The crane comprises a portal assembly, travelling trolleys mounted at the four corners of the portal assembly, lifting mechanisms mounted on the portal assembly and a hoister. The two lifting mechanisms are correspondingly arranged on the portal assembly. Each lifting mechanism comprises two lifting winding mechanisms, a drag type fixed pulley trolley and a drag type traveling winding mechanism. The lifting winding mechanisms are distributed on upper cross beams or lower cross beams or supporting legs. The lifting winding mechanisms are distributed at the four corners of the portal assembly correspondingly, shift-down of the gravity center of the whole crane is achieved through the position distribution of the lifting winding mechanisms, the load weight of the upper structure is reduced, and lightweight of the structure of the container portal crane is achieved; and one of the four lifting winding mechanisms can independently act, or two or three or all of the four lifting winding mechanisms can act jointly to be used for loading and unloading other cargos, so that the multiple functions of the crane are achieved.

Description

technical field [0001] The invention relates to the field of cranes, in particular to a lightweight multifunctional container gantry crane and an assembly method thereof. Background technique [0002] Container transportation originated in the United Kingdom in the early 19th century. So far, container transportation has developed rapidly in the United States, Germany, France and other European and American countries, and has become the best transportation method for countries all over the world to ensure international trade. [0003] my country's railway container transportation began in the 1950s and has gone through more than 50 years of development. At present, my country's railway network has a scale of more than 90,000 kilometers, and the railway transportation capacity has been enhanced. Due to the wide coverage of the railway transportation network and the low transportation cost, it is very suitable for the development of multimodal transportation of railway contai...

AI Technical Summary

Problems solved by technology

In actual equipment selection, these multi-purpose medium and small railway freight yards have problems of being unaffordable, unmanageable, and unusable for large-scale professional rail-mounted gantry cranes, and general lifting equipment is very expensive. It is difficult to take into account the work requirements of loading, unloading, stacking and handling of multi-purpose yards, so that these medium and small multi-purpose railway freight yards face many difficulties in the selection of loading and unloading equipment

At present, my country has been able to mass-produce shoreside container cranes and tire cranes with the international advanced level in the 1990s, while the research and development capabilities of rail cranes are relatively backward, especially the lightweight multifunctional container doors suitable for container handling business in small and medium-sized railway freight yards. The research and development of type cranes is still blank in China

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