Section assembly bridge girder erection machine suitable for bridge with small curve radius

Abstract

The invention discloses a section assembly bridge girder erection machine suitable for a bridge with a small curve radius. The section assembly bridge girder erection machine structurally comprises amoving frame, a first support, a vehicle head, a vehicle compartment, a beam piece, a second support, a fine adjusting system and a third supporting frame. The vehicle compartment is mechanically connected with the vehicle head, a motor is arranged in the vehicle head, the first support is fixedly arranged on the vehicle compartment, and the movable frame is mounted at the top end of the first support. The section assembly bridge girder erection machine is provided with the fine adjusting system, a fine adjusting correction system, a step balancing structure and a counterweight system, the weight of a base is increased, the stability performance of the base is improved, the gravity center is lowered, meanwhile adjustment on the gravity center can be conducted according to the fine adjusting correction system, the section assembly bridge girder erection machine is suitable for any bridge, particularly overlapping joint of beam pieces of the bridge with the small curve radius, when the third supporting frame is unfolded and fixed, the base is stable, the gravity center is low, adding of assistance of external force is not needed, the fixing time is shortened, and the time cost is reduced.

Description

technical field [0001] The invention relates to a segmental assembly bridge-erecting machine suitable for bridges with small curve radius, belonging to the field of bridge-erecting machines. Background technique [0002] The bridge erecting machine is the equipment that places the prefabricated beams on the prefabricated bridge piers. The bridge erecting machine belongs to the category of cranes, because its main function is to lift the beams, and then transport them to the position and put them down. The bridge erecting machine has the same general meaning The cranes on the road are very different. The required conditions are harsh, and there is walking on the beam, or called longitudinal movement. The bridge erecting machine is divided into erecting road bridges, conventional railway bridges, and passenger railway bridges. Bridge construction is inseparable from the bridge erecting machine. The small curve radius bridge increases the emphasis on the lap joint of the girder...

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Problems solved by technology

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a segmental assembly bridge erecting machine suitable for small curve radius bridges, so as to solve the problems of insufficient weight at the bottom of the existing support mechanism, unstable support and external force assistance for installation at the bottom. It takes a long time and takes more than two days. When more beams need to be overlapped, the problem of high time cost

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