Tool for lifting big pieces for double travelling cranes and manufacturing method thereof

Abstract

The invention discloses a tool for lifting big pieces for double travelling cranes. The tool comprises a main beam, wherein the main beam is formed in a way that two parallel H-shaped beams are weldedalong upper and lower flanges, and a plurality of lining plates are welded in the U-shaped position of the flange, which is welded, on each H-shaped beam; two travelling crane lifting lugs are symmetrically welded above the main beam from left to right along the longitudinal center line of the main beam, and a big piece lifting lug is welded in the middle below the main beam; and rib plates are symmetrically welded respectively on both sides of the two travelling crane lifting lugs and the big piece lifting lug, and the bottoms of the rib plates are fixedly welded with the upper surface of the flanges of the H-shaped beams of the main beam. The invention further discloses a manufacturing method of the tool for lifting the big pieces for the double travelling cranes. By applying the tool,two travelling cranes can be used for lifting the big pieces in parallel, the tool has the advantages of rapidity, convenience, safety, low investment cost and high working efficiency, the onsite actual demand can be satisfied, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of machinery, and in particular relates to a tool for lifting and transporting large parts with double cranes and a manufacturing method thereof. Background technique [0002] Double-girder bridge crane (crane) is an indispensable core equipment in the production of enterprises. It has become an important part of the main equipment on the production line. Considering the purchase and maintenance costs and installation space, the lifting weight of the crane in the general factory is based on During routine production and maintenance, it is necessary to design the weight of the lifting object. For some large items that need to be lifted occasionally, the lifting capacity of a single crane cannot meet the requirements. Using a truck crane sometimes requires a lot of auxiliary work due to site constraints. Such as building Dalin, dismantling some equipment, etc., will bring a lot of trouble to the lifting of large pieces....

AI Technical Summary

Problems solved by technology

[0002] Double-girder bridge crane (crane) is an indispensable core equipment in the production of enterprises. It has become an important part of the main equipment on the production line. Considering the purchase and maintenance costs and installation space, the lifting weight of the crane in the general factory is based on During routine production and maintenance, it is necessary to design the weight of the lifting object. For some large items that need to be lifted occasionally, the lifting capacity of a single crane cannot meet the requirements. Using a truck crane sometimes requires a lot of auxiliary work due to site constraints. Such as building Dalin, dismantling some equipment, etc., will bring a lot of trouble to the lifting of large pieces

[0003] In order to solve the problem of insufficient lifting capacity of a single crane and meet the production needs of enterprises, it is necessary to invent an intermediate transition tool for lifting large parts with double cranes.

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