Gantry crane with adjustable lifting points

The utility model discloses a gantry crane with adjustable lifting points. The gantry crane structurally comprises side frames and a frame protecting beam, wherein a power-driven flatcar is located below the gantry crane, jacking oil cylinders are connected with lifting beams which are connected with guide sleeves, and the lifting beams and the guide sleeves run vertically along guide pillars; bolt holes in the guide pillars coincide with bolt holes in the side frames; horizontal moving oil cylinders are arranged on the lifting beams and connected with an oil cylinder base which is connected with the lifting beams; rod head lugs of the horizontal moving cylinders are connected with moving boxes, lifting appliances are connected with the moving boxes, the jacking oil cylinders, the horizontal moving oil cylinders and integrated electromagnetic hydraulic directional valves are connected, the integrated electromagnetic hydraulic directional valves are connected with a hydraulic pressure station oil way, a generator set supplies power to a hydraulic pressure station, and a remote control receiver controls the integrated electromagnetic hydraulic directional valves to drive the jacking oil cylinders and the horizontal moving oil cylinders to work; and two horizontal moving oil cylinders are arranged, two groups of moving boxes, two groups of lifting appliances and two groups of rod head lugs are arranged, and the adjustable distance between the two groups of lifting appliances is 1,500-2,700 mm. The use range of the gantry crane is enlarged, remote control operation is adopted, the operation intensity is reduced, the efficiency is improved, the structure is simple, and the maintenance is convenient.