A gantry crane is a type of gantry crane specifically designed for bridge construction. The lifting machine is mainly composed of assembled main beams, supporting legs, overhead cranes, etc. The components are connected by pin shafts and high-strength bolts, which are easy to disassemble, assemble and transport; Compared with ordinary gantry cranes, installation is convenient, fast, economical and practical. Suitable for road and bridge construction units that frequently move.

technical requirement

1. Improve the positioning accuracy of prefabricated beams and reduce the impact on the structure of the lifting machine by lowering the operating speed of the lifting and running mechanisms.

2. The internal space of the lifting machine should be large enough to meet the assembly needs of lifting prefabricated beams and bridge erecting machines.

3. The main steel structure should be considered for disassembly and transportation while meeting the requirements of strength, stiffness, and stability.

When using two cranes to lift prefabricated beams, it is necessary to ensure that the two machines operate synchronously.

Operation and maintenance

1. Operators must undergo training and be qualified before they can take up their posts.

2. Strictly follow the operating requirements and steps.

3. Regularly inspect and maintain mechanical and electrical devices.

4. If any problems are found, the machine should be stopped for inspection until the problem is resolved.