Rail mounted gantry crane is a lifting device for cargo handling in places such as warehouses, stations, and construction sites. It can lift,descend and move horizontally to carry cargos. The structure of a heavy duty gantry crane is a complex and robust system, designed to handle the demanding tasks of container transport in shipping terminals and inter-modal yards. Understanding the rail mounted gantry crane structure helps the crane users and operators optimize crane performance, reduce downtime, and maintain safe, productive operations.
Main Beams (Girders): These horizontal beams span the width of the crane and support the weight of the trolley, hoisting system, and the container being lifted. The main beams are designed to withstand significant loads, often constructed from high-strength steel.
Legs (Columns): The legs support the main beams and connect them to the ground or rail system. In a heavy duty gantry crane, these legs run on tracks along the length of the crane’s working area. For a rubber-tired gantry container crane, the legs are equipped with rubber tires, enabling mobility within the container yard.
Trolley and Hoisting Mechanism: The trolley is a mobile platform that runs along the length of the main beams. It houses the hoisting mechanism, which is responsible for lifting and lowering containers. The hoisting mechanism includes a system of ropes, pulleys, and a motor-driven hoist drum that enables the lifting operation.
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