Connection structure of main beam and end beam of bridge type crane

Abstract

A connection structure of a main beam and an end beam of a bridge type crane includes a main beam connection plate, an end beam connection plate, and bolts. An end portion of the main beam is provided with the main beam connection plate. An end portion of the end beam is provided with the end beam connection plate. The bolts are arranged between the main beam connection plate and the end beam connection plate. The end portion of the main beam and the end portion of the end beam are provided with the connection plates. The connection plates have anti-shearing locating members. The main beam and the end beam are connected by the common bolts through the connection plates. The high strength bolt connection or hinge hole bolt connection in the previous design is simplified, the stress of the bolts is reduced, and the crane running safety is increased. The main beam and the end beam can be individually separated, the transport is convenient, the transport cost is reduced, and the work efficiency is improved.

Description

technical field [0001] The invention relates to a connection structure between a main girder and an end girder of a crane, in particular to a connection structure between a main girder and an end girder of a bridge crane. Background technique [0002] Since my country's reform and opening up, the national economy has grown rapidly, which has brought prosperity to the machinery industry. With "scientific and technological innovation and independent innovation", the machinery industry is gradually developing in the direction of intensive, energy-saving, emission-reducing, and low-carbon. Since the beginning of human civilization, material handling has become an important part of human activities, with a history of more than 5,000 years. With the expansion of production scale and the improvement of automation, cranes, which are important equipment for material handling, are more and more widely used in the modern production process, and their functions are becoming more and mo...

AI Technical Summary

Problems solved by technology

The main girder and the end girder of the existing bridge crane are connected by rigid welding. The upper and lower cover plates at the end of the main girder leave a gap for the total height of the end girder. The end girder is inserted into the gap at the end of the main girder. The web and the upper and lower cover plates are welded and connected by stiffeners. The end girder and the main girder cannot be disassembled for transportation, and the end girder can only be divided into two; High-strength reamed hole bolts are used for connection. High-strength reamed bolts are subjected to forces in several directions such as shear force and tension. They are easily damaged and pose a threat to production safety. In the hope of developing a more advanced connection structure between the main girder and the end girder of the crane, although some progress has been made, there are still technical problems that have not been overcome in practical application.

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