Device and method for hoisting ship longitudinal bone

Abstract

The invention relates to a hoisting device of a ship longitudinal frame, of which the main mechanism is that a first side plate and a second side plate are the identical stripy straight plates, of which a cross section is upper curved and lower straight; the first side plate and the second side plate are placed in alignment; an under part is parallel to an upper part and bends outward to form a wide mouth; end regions of one end of the first side plate and the second plate are inclined and are jointly fixed on an edge of a blanking plate; a first element and a second element with a triangle-shaped cross section are symmetrically fixed on an outside bottom of the first side plate and the second side plate. A method for hoisting the ship longitudinal frame comprises the following steps: (1)the hoisting device is fixed on an assembling steel plate of the ship longitudinal frame; (2) the ship longitudinal frame is hoisted to the upper edge of the hoisting device; the ship longitudinal frame is loosed to slide into the wide mouth of the hoisting device until to the bottom; (3) the ship longitudinal frame is positioned by spot-welding; (4) the hoisting device is demounted; the ship longitudinal frame and the assembling steel plate are fixed. By adopting the hoisting device and the hoisting method of the invention, stability and security of hoisting the ship longitudinal frame can be improved, workload of participation people can be reduced and production efficiency can be increased.

Description

technical field [0001] The invention relates to hull construction, in particular to a hoisting tool for hoisting longitudinal frames on a ship's plane segmented assembly line, and a method for positioning and assembling with the hoisting tool, thereby ensuring more accurate and efficient hoisting work. Background technique [0002] In hull construction, the hull structure is composed of thousands of steel parts. The assembly process requires the positioning and fastening of steel parts, which is called assembly in the industry. Assembly must also rely on measuring tools and tools for positioning of parts and components. After the installation position is determined, it is still necessary to check its correctness, so it is necessary to use various measuring instruments, and finally use fastening tools to fix the parts and parts to achieve the purpose of assembly. [0003] In modern shipbuilding, the assembly and welding man-hours of the hull account for about 12-18% of the ...

AI Technical Summary

Problems solved by technology

[0008] There are many problems in the above-mentioned hoisting method: firstly, the process of raising the longitudinals with levers is relatively dangerous, and the operator who participates in the hoisting will be injured if there is any carelessness, and the labor intensity is relatively high; secondly, welding on the longitudinals must be A large number of support plates will bring about an increase in production costs. After cutting the support plates, it will have a negative impact on the strength of the longitudinal bone. Finally, a series of cumbersome processes will take up a lot of time and the production efficiency will be low.

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