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        In recent years, the number of construction projects for highways, railways, and bridges in China has been increasing. The lifting machinery mainly used in these construction projects includesBridge erecting machineForms such as gantry cranes and hoists. According to different application fields, we can also divide cranes into gantry cranes, tower cranes, bridge cranes, and other forms. The application of different cranes varies, among whichgantry craneThe essence is a gantry crane.

        We target double beamsgantry craneProvide a brief introduction to the installation process of the main beam. The main beam of this gantry crane consists of 6 sections. Before lifting, we should assemble some of its components before carrying out the lifting work. Before the main beam lifting work, we should first arrange the crane and support all its legs based on the distance between the arranged main beam and the door leg position, combined with the distance marked in the drawing. Hanging ropes are usually tied together. This typegantry craneThe four corners of the main beam must be pulled with white brown ropes to secure the wind ropes. After being lifted to a certain height, the position of the main beam flange and the door leg flange should be preliminarily adjusted using a hoist, and then accurately positioned using positioning pins. All connecting bolts should be threaded and tightened according to design requirements.

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