Manufacturing method of upper supporting legs of tire crane

Abstract

The invention discloses a manufacturing method of upper supporting legs of a tire crane, and relates to the technical field of tire crane components. The method comprises the following steps that firstly, box bodies and flanges of the upper supporting legs are manufactured, and the flanges and the upper supporting leg box bodies are installed; the upper supporting leg flanges are manufactured, specifically, bolt hole positions and web and wing plate mounting lines are scribed on lower flanges according to lower supporting leg upper flanges, and bolt hole positions, web and wing plate mountinglines and supporting leg center lines are scribed on the upper flanges according to main beam flanges; the lower flanges are installed, specifically, the lower flanges of the supporting legs are connected with the upper flanges of the lower supporting legs through bolts and clamping plates, upper supporting leg lower ports are trimmed by using flange plates as a reference, welfding is completed asrequired after correction is qualified; and the upper flanges are installed, specifically, upper flange mounting inspection lines are scribed on the upper supporting legs according to lower cross beam center lines or large axle hole centers, and upper ports and the upper flanges are positioned according to the upper supporting leg center lines. The manufacturing method of the upper supporting legs of the tire crane has the advantages that after the upper flanges and the lower flanges are installed, main beams are directly hoisted to the upper supporting legs for final assembly, so that the hoisting frequency is reduced.

Description

technical field [0001] The invention relates to the technical field of tire crane components, in particular to a method for manufacturing the upper legs of the tire crane. Background technique [0002] With the growth of container throughput, the improvement of loading and unloading efficiency and economic benefits, and the development of modern science and technology, tire cranes have begun to play an increasingly important role. [0003] In the prior art, when making the upper legs of the tire crane, the flange installation process is to connect the two flanges, weld them to the legs, then hoist the main beam to the legs, pre-weld the main beam and the flanges, and then The main girder is hoisted down, the flanges are painted and repaired, and finally hoisted again for final assembly. The number of hoistings is high and the safety factor is low. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a method for manu...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for manufacturing the upper leg of the tire, which can solve the problem of many times of hoisting when the upper leg is manufactured in the prior art

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