The invention provides a lifting device for
pipe piles, which belongs to the field of
mechanical devices. The lifting device includes an upper top cover, a housing cavity, a traction body, a flat suspension arm, a limit plate, an extended expansion plate, a hydraulic driver and a swing
cam; the upper top cover, the housing cavity, and the traction body are connected to form a The cavity, the stretching expansion plate, the hydraulic driver and the swing
cam are all installed in this cavity; the swing
cam is installed on the support seat inside the cavity of the housing, powered by the hydraulic drive, and can swing, and during the swing process In the middle, the stretching expansion plate in contact with it is stretched out or retracted in the window on the cavity of the shell, so as to realize the expansion and loosening of the
pipe pile. The overall structure of the lifting device proposed by the present invention is simple, the
processing of each component is convenient, and the
processing cycle and cost are reduced; the complexity of the device
system is low, the possibility of
device failure is reduced, and the stability and safety of the
pile lifting process are guaranteed; the swing cam The structure is simple and the size is small, so that the overall weight of the device is light.