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2台大型履带式起重机因机型老,自身没有顶升装置,每次拆卸或安装时需要2台大吨位起重机抬吊主机和履带组件,作业难度大、耗时长、费用高、安全隐患大。介绍了为这2台履带式起重机设计制作的一套液压顶升装置。利用这套顶升装置,拆装这2台履带式起重机就不需要起重机抬吊作业,使得这2台履带式起重机的拆装工作变得十分简便和安全。顶升装置采用独立液压泵站,泵的额定压力16MPa、排量4.8mL/r、电机功率2.2kW,支腿液压缸4只,缸径170mm,顶升总质量81t,单支腿设计负荷30t。1台顶升装置可为多台起重机维修服务。
Two large crawler cranes due to the old models do not have their own lifting device, each demolition or installation requires two large tonnage cranes to lift the host and track components, difficult operation, long time-consuming, high cost, security risks. Introduced a set of hydraulic lifting device designed for the two crawler cranes. With this jacking device, the two crawler cranes can be disassembled and disassembled without lifting the crane, making the disassembly work of the two crawler cranes very simple and safe. The jacking device adopts an independent hydraulic pump station. The rated pressure of the pump is 16MPa, the displacement is 4.8mL / r, the motor power is 2.2kW, the hydraulic cylinder of the leg is 4, the bore diameter is 170mm, the total lifting mass is 81t and the single leg design load is 30t. One lifting device for multiple crane service.