Flow type bridge erecting machine

Abstract

The invention discloses a flow type bridge erecting machine, which relates to the technical field of bridge erecting machine. A girder is provided with a hoisting and lifting device; the rear part of the girder is provided with a tire-type backward big vehicle travelling device, and the front part of the girder is provided with a tire-type forward big vehicle travelling device; the front part of the girder is provided with a movable triangular main support leg device on which a horizontal guiding wheel device, a press wheel device and a support wheel device driven by a press wheel driving device are arranged; and the front end of the girder is provided with an assistant support leg device. The flow type bridge erecting machine has simple structure and is convenient to operate; during the transportation of the girder, the flow type bridge erecting machine can make the girder smoothly pass through the tunnel and smoothly erect the girder at the tunnel entrance or in the tunnel without needing a guide beam for support or any assistant tool, thereby bringing high efficiency and being easy to guarantee the project quality and conducive to reducing the cost. The flow type bridge erecting machine can carry any type of girder to smoothly pass through tunnels at a speed of 250 km per hour and a speed of 350 km per hour and is particularly applicable to the transportation and erecting of 900-ton, 750-ton and 550-ton prestressed reinforced concrete box girders of high-speed railway and passenger special line.

Description

technical field [0001] The invention relates to the technical field of bridge erecting machines. Background technique [0002] At present, the bridge transport equipment at home and abroad can be divided into two categories in terms of its transport mode, one is the separate machine for transporting the frame, and the other is the integrated machine for transporting the frame. The so-called frame transport split machine refers to the operation mode in which the beam transport is completed by the beam transport vehicle, and the beam erection is completed by the bridge erecting machine. Although the working efficiency of this mode is high, sometimes it will not work at all when encountering problems between tunnels. For example, any beam transport vehicle cannot carry beams through a tunnel at a speed of 250 kilometers per hour, which forces people to change. The girder type (such as changing the whole box girder to double box juxtaposed girder) not only increases the project...

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Problems solved by technology

[0004] The purpose of this invention is to provide a mobile bridge erecting machine, which can solve the difficult problem of bridge erection under complex geological conditions. It has a simple structure and convenient operation, and it can make the beam body pass through the tunnel smoothly during the transportation of the beam body. , the beam can be erected smoothly at the tunnel entrance or in the tunnel without the support of the guide beam and any auxiliary equipment. It has high efficiency, is easy to ensure the quality of the project, and is conducive to reducing costs

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