A lifting device for pipe piles

Abstract

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.

Description

technical field [0001] The invention belongs to the field of mechanical devices and relates to a lifting device for pipe piles. Background technique [0002] The pile foundation is a kind of creative structure that human beings build buildings on the foundation that cannot be used originally, and it expands the range of terrain that can be used by human beings. With the development of science and technology, the form and material of pile foundations are changing, from wooden piles to concrete piles to steel piles, from several meters to tens of meters or even over 100 meters of large marine steel pipe piles. With the change of the pile form, the lifting and handling of the pile during the construction process also requires corresponding construction devices to improve the construction efficiency and ensure the construction quality. [0003] For the lifting of small steel piles, there is generally no special pile lifting device at present, and temporary tooling or simple met...

AI Technical Summary

Problems solved by technology

[0003] For the lifting of small steel piles, there is generally no special pile lifting device at present, and temporary tooling or simple methods are often used to operate, which not only has low construction efficiency but also has construction risks.

For the lifting of large-scale steel piles, the currently used pile-hanging devices mostly use claw clamping methods, which have the disadvantages of uneven clamping, great damage to steel piles, inconvenient construction, complex device structure and high manufacturing cost.

Images