Gantry Crane For Shipbuilding

Introduce

Advantages of shipbuilding gantry cranes:

The shipbuilding gantry crane is a kind of gantry crane, which is mainly used to assemble the hull on the slipway.

The shipbuilding gantry crane has two trolleys: one has two main hooks, which run on the track of the upper flange of the bridge; the other has one main hook and one auxiliary hook, which runs on the track of the lower flange of the bridge , two trolleys run crosswise to flip and lift large hull sections.

Dafang shipbuilding gantry crane has the functions of lifting, lifting, turning over in the air and other functions. It is particularly prominent for the features such as turning over and closing the hull. The segmented turning operation is performed by two trolleys. The first is to adjust the lifting and lowering, so that the entire segment is supported by the upper trolley.

The crane used in the place where the ship is manufactured and on the dock, its task is to transport all the parts (ribs, profiles, steel plates, etc.) required for the manufacture of the hull from the ground transportation equipment to the manufacturing location. This kind of transportation work must be able to complete the task quickly in a long distance. Therefore, the decision of the number of cranes is based on the principle that the foundation area of the entire dock can be reached, and the cranes do not interfere with each other.

Features of shipbuilding gantry crane:

1. The metal structure of the crane is mainly composed of the main beam, rigid legs, flexible legs, lower beams, bars, driver’s cab, etc.
2. The main beam of the crane adopts a double beam structure. There are four tracks on the panels of the two main beams for the upper and lower trolleys to travel. One has two main hooks, which run on the rails of the upper flange of the bridge; the other has one main hook and one auxiliary hook, which run on the rails of the lower flange of the bridge, for tide turning and lifting of large hull parts. part.
3. In order to reduce the self-weight, the rigid leg adopts an integral box-shaped structure; the flexible leg adopts a herringbone frame structure, which is composed of an upper joint, two round pipes and a lower joint.
4. The power supply of the cart adopts the cable reel power supply type. The upper and lower trolleys are powered by a suspension cable pulley device, which are respectively arranged on the top surfaces of the two main beams.
5. The crane is equipped with overload protection, wind-proof rail clamps, anchoring devices, anemometers and limit and load display devices for each mechanism.