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JQ900型架桥机用于铁路客运专线(时速250 km、350km)20m、24m、32m双线整孔混凝土箱梁架设。主要由主梁、前、后吊梁行车、辅助行车、前、后支腿、辅助前支腿、辅助后支腿、下导梁、电气及控制系统、液压系统等组成。该机具有采用短尾喂梁、一跨式架梁、下导梁过孔的架梁作业法,使整机结构简单,自重轻;受力明显,安全可靠,不需要在墩顶设置锚固;使用了机、电、液一体化技术,工作机构动作
JQ900 bridge erecting machine is used for the erection of 20m, 24m, 32m double-line whole-hole concrete box girders for passenger dedicated railway lines (250 km / h and 350 km / h). Mainly by the main beam, front and rear crane beam driving, auxiliary traffic, front and rear legs, auxiliary front legs, auxiliary rear legs, the next beam, electrical and control systems, hydraulic systems and other components. The machine has the use of short tail feed beam, a span beam, the lower beam through the hole girder work method, so that the whole structure is simple, light weight; force obvious, safe and reliable, do not need to set anchor in the pier; Using the machine, electricity, liquid integration technology, work organization movements