Highway bridge erecting machine
Highway bridge erection machines are large-scale specialized construction equipment used in the construction of expressways, urban viaducts and other projects. They are mainly used for the transportation, hoisting and erection of prefabricated beams (such as box girders and T-beams). It can efficiently and precisely lift the beam body from the beam transport vehicle and install it onto the bridge pier or cap beam, significantly enhancing the degree of automation and safety in bridge construction. It is an indispensable key equipment in modern bridge construction.
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- Working principle
Lifting principle: The motor in the lifting mechanism drives the reducer, which in turn rotates the drum. The drum winds or releases the steel wire rope, causing the hook to rise or fall, thereby achieving the lifting and lowering operations of the beam sections.
Longitudinal movement principle: By using the traveling mechanism of the bridge erection machine itself, such as hydraulically driven tires or track trolleys, the bridge erection machine moves along the longitudinal axis of the bridge to transport the beam sections from the prefabrication yard or the beam storage area to the piers to be erected.
The principle of lateral movement: Usually, lateral movement cylinders or other lateral movement devices are used to push the relevant components of the beam sections or bridge erection machines to move laterally above the bridge piers, achieving precise alignment and installation of the beam sections.
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Main products: Luqiao District Portal Crane, bridge erector, European single beam, double beam crane, explosion-proof series cranes.