Cellular beam bridge machine is how it works

  On the highway, highway bridge machine generally used to complete the erection of the bridge , the current HZQ cellular beam bridge erecting machine is a new device , the bridge machine has obtained national patents,overhead gantry crane especially for small space beam field , using subgrade beam field of engineering . Daily stand four beams , enabling reverse bridge , a significant reduction in construction costs and construction cycles.
    Erecting machine installation is complete, check the functioning of the institutions , subject to normal after the main beam leveling , while the transport and haulage vehicles precast beam girder erecting machine reaches the end , ready vias ; cause outrigger cylinder , placed firmly , so that the main beam elevated appropriate location , and then insert the pin in the casing , the legs ( with sliding rails ) rely on their own hanging forward 50 meters in place, will be in the legs and sliding down the track pad solid ; front legs cylinder by force, the pin out , and the whole drop , fall in the main beam and the rear leg bracket idler wheel, the front and rear lifting the legs open to the vicinity of the car , and the rear legs startup bracket roller mechanism , so that the main beam forward 20 meters , before lifting the car move backward 20 meters synchronized ; recovery tank rear bracket so vacant, hanging on their own bodies ( without power ) forward 30 meters , will be in place after the flat bracket and insert the pin ; then recovered after the outrigger cylinder so vacant, both before and after the lifting trolley to move the tail ; startup outrigger and rear bracket roller mechanism , so that the main beam forward 15 meters , before lifting trolley sync moving backward 15 meters ; then after lifting trolley continue synchronizing backward to the main beam ends, while transporting girder vehicle checked precast beams in place, after lifting one end of the car lifting precast beams and securely connected as a counterweight ;hoist gantry crane startup charged legs and rear bracket roller mechanism , so that the main beam forward 15 meters , so that the front legs in place and lifting, so the top to the front axle support platform to meet the requirements of girder , and then check the machine agencies, for aircraft beam preparations.
    When erecting edge beam : the edge beam position put to the side two , falling edge beam and support, then remove the spreader ; erecting machine reverse lateral displacement of the center of the outer edge of the main beam beam center vertical ; lifting trolley movable pulley upgrade outward sliding , and then two pulleys ride unilateral main beam fall, connected with the original lifting beam ; lifting trolley hoist upgrade, lift edge beam outward sliding , falling beams in place.
    At this stage, usually walking bridge machine bridging machine that bridge machine vias , without laying diversion track , eliminating the tracks of the material , reducing the labor intensity , except for the first hole needs another tire beam carrier girder with through-hole ,bridge gantry crane and the remaining span bridge machine can rely on their own institutions to achieve self-balancing vias .