honeycomb bridge girder launcher

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The bridge girder erection machine, designed to solve the existing problem during bridge erection is a new-type bridging equipment which keeps the advantages of traditional bridge girder launcher home and abroad (1)Main feature/advantages： 1. Unique honeycomb-girder structure, low deflection and high stiffness 2. put boundary beam in place one time when it has a side load. without hanging landing leg in the air, safe and reliable 3. if the landing leg front and back is changed a little, it can erect the bridge in a reverse direction 4. The error of bridge girder erection is less than 5mm 5. Unique pin connection, firm and reliable, easy to install 6. A-type fracture surface, continuous girder with low center of gravity, convenient and reliable (2)Main structure and function: 1. Main longitudinal girder Consist of several independent section girder, upper the girder there is a track for trolley with hoist to transporting girder longitudinally, underpart of the girder is landing leg 2. Trolley with hoist Consist of trolley frame, winch, pulley block and wheel box 3. Connection framework Connect two main longitudinal girders together with bolts and pins 4. Landing leg Consists of leg bracket, outer sleeve, inner sleeve, hydro-cylinder, pin, wheelbox twisted seat and travelling wheel box 5. Lateral movement track Take u-steel and steel plate or joist steel as foundation, on the surface of which the steel rail is laid as a track 6. Boundary girder pylons Consist of hammock and slings for lifting loads,be used to erect boundary girder 7. Hydraulic system Consist of hydraulic unit, multiple directional control valve, hydro-cylinder and oil-way, be mainly used to jack the machine 8. Electrical system Be made up of motor, control cabinet and so on. Trolley with hoist and main longitudinal girder are controlled respectively by their own control cabinet. Item HZQ50-160B HZQ40-100B HZQ35-80B HZQ30-60B Max Span 50m 40m 35m 30m Lifting Capacity 160t 100t 80t 60t Lifting Speed of Trolley 0.8m/min 0.8m/min 0.8m/min 0.8m/min Moving Speed of Trolley 4.5m/min 4.5m/min 4.5m/min 4.5m/min Moving Speed of Gantry 2.7m/min 2.7m/min 2.7m/min 2.7m/min Loading Capacity for Concrete Girder 80t×2 50t×2 40t×2 30t×2 Speed of Heavy Load 4-8M/min 4-8M/min 4-8M/min 4-8M/min Speed of Empty Load 18M/min 18M/min 18M/min 18M/min Max Angle of Inclined Bridge 45° 45° 45° 45° Min Allowed Radius for Curved Bridge R350 R300 R300 R300 1. the machine can accomplish the build of girders with carrying and erection at the same time. 2. the machine can erect 4 pieces fo girders with the other two cranes one day, reducing construction cycle. 3. the machine can continue to work just exchanging the front rear legs, no need extra assembly.

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Zhengzhou Huazhong Construction Machinery Co., Ltd

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