Bridge girder erection machine is a device that places the prefabricated beams on the prefabricated piers. Bridge girder erection machine belongs to the category of crane, because its main function is to lift the beam, and then transport it to the designated location and put it down. But it is quite different from cranes in general sense. The requirements are strict, and there is a row on the beam,or it is called longitudinal displacement. Bridge girder erection machines are divided into
highway bridges, conventional railway bridges, passenger dedicated railway bridges and so on. The bridge girder erection machine produced by HuangHe FangBao Company can not only carry out standard erection work, but also meet the equirements of first and last span erection, curve erection, variable span erection, span continuous beam, combined beam, continuous steel structure,etc. The bridge girder erection machine has the advantages of simple erection, fixed point lifting,good stability of beam body lifting, high operation efficiency, safety and reliability, convenientad justment of variable span, and convenient operation, etc. In addition, the bridge girder erectionmachine is composed of main girder, crane, front supporting leg, rear supporting leg, middle bracket, front supporting leg cylinder, rear supporting leg cylinder and transverse connection frame of front, middle and rear end of main girder. The control part is composed of hydraulic
system and electronic control system.
The company produces a new step type of two-way bridge girder erection machine, which canreverse erect beams without turning the head when erecting beams, and does not need to layspecial tracks when passing through holes. The bridge girder erection machine can meet therequirements of large slope, small radius curved bridge, skew bridge and tunnel portal bridge erection. The bridge girder erection machine can carry side beams in place at one time, which is safe, reliable, simple and fast. The pin and flange are used to connect the main girder and main connecting structures to facilitate transportation, installation and disassembly. The bridge girder erection machine is a kind of lifting and erecting equipment for rail prefabricated beams of steel structure with wide operation scope, excellent performance, convenient operation and safe structure. It is suitable for working in the environment of -20 ~ 40℃, non-corrosive medium.
The structure of the bridge girder erection machine can be divided into main girder, lifting trolley,front supporting leg, middle supporting leg, walking track, flat transporting girder vehicle,hydraulic and electrical parts, forming a complete structure system. Its main girder is a triangu lartruss structure, which is welded by shape steel and steel plate. It has the advantages of light structure, good rigidity, strong stability, strong anti-wind capability and beautiful appearance.