The metal structure of a bridge crane mainly consists of the following key components:

Main beam: The main beam is the main load-bearing component of the metal structure of the bridge crane, which spans over the workshop and is connected to the end beam at both ends. The material of the main beam is usually selected from steel with high strength and good toughness, such as 16Mn. The design of the main beam needs to consider its bearing capacity and stiffness to ensure that there will be no significant deformation when lifting heavy objects.

End beam: The end beam is located at both ends of the main beam and is vertically connected to the main beam. The main function of the end beam is to support the main beam and transmit the load on the main beam to the crane walking mechanism. The structural forms of end beams are diverse, including box structures and truss structures, among which box structures are the most widely used.

Walkway and railing: A walking platform and safety railing are usually installed on the outer side of the main beam for operators to use when walking and maintaining equipment. These facilities not only improve the safety of the crane, but also facilitate the daily work of the operators.

Driver's cab (control room): The driver's cab is the control center of the bridge crane, usually fixed at one end of the main beam. In the driver's cab, operators can manipulate various movements of the crane through control devices, such as lifting, small car walking, and large car walking. The design of the driver's cab needs to consider its comfort and wide field of view to ensure that operators can safely and efficiently complete tasks.

In summary, the metal structure of bridge cranes mainly consists of main beams, end beams, walkways, railings, and driver's cab. These parts together form the skeleton and support system of the bridge crane, ensuring the stability and safety of the crane.

It should be noted that with the continuous advancement of technology and the updating of crane design concepts, the metal structure of bridge cranes is also constantly developing and improving. Therefore, in practical applications, metal structures may be adjusted and optimized according to specific needs and conditions.

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