Hoisting method of offshore crane

Abstract

The invention discloses a hoisting method of an offshore crane. The method comprises the following steps that three hoisting points which are not located in the same plane are randomly taken, and thegravity center of a base is solved; hoisting points of hoisting are determined; lifting lugs are connected to the lifting points; steel wire ropes of the crane are connected with the lifting lugs to realize lifting of the base; a rotating platform assembly is hoisted; three hoisting points which are not located in the same plane are randomly taken, the gravity center of the rotating platform assembly is solved, and the hoisting points for hoisting are determined; a lifting lug is connected to the lifting point of a left side connecting lug; steel wire ropes of the crane are connected with thelifting points on the lifting lug on the left side and a right side connecting lug to lift the base; a tripod is hoisted, three hoisting points which are not located in the same plane are taken randomly, and the gravity center of the tripod is obtained; hoisting points of hoisting are determined; steel wire ropes are connected with the top end hoisting point and the lower hoisting point, and the upper ends of all the steel wire ropes are gathered and connected to the crane, and the crane is used for realizing hoisting; and a crane jib is hoisted. The method has the advantages that selection ofthe hoisting points of crane components is accurate and convenient, and the stress of the components is reasonable during hoisting.

Description

technical field

[0001] The invention relates to the technical field of cranes, in particular to a method for hoisting an offshore crane. Background technique

[0002] The assembly of large-scale cranes in the prior art generally uses a crane to gradually assemble the basic components of the crane such as the base, base, slewing platform, slewing bearing, tripod and boom. However, for the hoisting of large-scale cranes, the volume of the components Large, if the center of gravity is not determined for hoisting, it is easy to damage the parts in the component. Moreover, if the lifting point is not rotated accurately, it will be difficult to adjust accurately when installing between components due to the large size and weight of the component, thus increasing the assembly time. and cost. Contents of the invention

[0003] The invention provides a hoisting method of an offshore crane. By using the method of the invention, when hoisting crane parts, the selection of hoisting p...

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