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Hoisting method of offshore crane

A hoisting method and crane technology, which are applied to the testing and measuring devices of cranes, machines/structural components, etc., can solve the problems of increasing assembly time and cost, difficulty in precise adjustment, and large volume of components, and achieve convenient operation and high precision. , The effect of hoisting stability

Active Publication Date: 2021-02-19
中船华南船舶机械广州有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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

Method used

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  • Hoisting method of offshore crane
  • Hoisting method of offshore crane
  • Hoisting method of offshore crane

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Embodiment Construction

[0068] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0069] Such as Figure 1-Figure 12 As shown, a hoisting method of an offshore crane includes hoisting the base 1, the slewing platform assembly 2, the tripod 3 and the boom 4

[0070] The hoisting of the base includes the following steps:

[0071] (1) Take any three lifting points that are not on the same plane to obtain the center of gravity of the base. The specific steps are:

[0072] (1.1) Take any point on the base as a lifting point. After being lifted by a crane, attach the magnetic laser light to the base directly below the lifting point, and adjust the light output direction of the magnetic laser light so that the light output direction is vertical. level;

[0073] (1.2) Take another point on the base as a lifting point. After being lifted by a crane, another magnetic laser light is adsorbed on the base directly below the ...

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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...

Claims

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Application Information

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IPC IPC(8): B66C23/18B66C1/66G01M1/12
CPCB66C23/18B66C1/66G01M1/122
Inventor 陈懿王良伟邹韬黄英凡雷伟胡文安沈琪黎国政焦鹤关宝蒙金文郭安罗韦淋睦
Owner 中船华南船舶机械广州有限公司
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