Steel pile pipe internal expansion type pile lifter

Abstract

Disclosed is a steel pile pipe internal expansion type pile lifter. A lifting lug, a center shaft, a hollow oil cylinder, a connecting base, a guiding cylinder, an axial movement conical wedge and a bearing baffle ring are sequentially installed on the same axis to form a driving cone body. The lifting lug and the hollow oil cylinder are located on the upper portion of the center shaft. The axial movement conical wedge and the bearing baffle ring are located on the lower portion of the center shaft. The hollow oil cylinder is connected with the upper portion of the connecting base through a connecting bolt. The guiding cylinder is connected with the lower portion of the connecting base through a connecting bolt. A balancing suspension arm is welded to the connecting base. The center shaft penetrates through the connecting base. T-shaped grooves are evenly formed in the conical surface of the axial movement conical wedge and matched with T-shaped beams on radial movement wedges. Rectangular windows are evenly distributed in the circumferential direction of the guiding cylinder and matched with the radial movement wedges. The steel pile pipe internal expansion type pile lifter has the advantages that machining difficulty is reduced, improving quality can be improved easily, machining period is shortened, machining cost is reduced, purchasing, piping, installation and maintenance are facilitated, and due to the fact that the hollow oil cylinder is arranged outside, working area is larger, and larger expansion force can be provided.

Description

technical field [0001] The invention relates to a mechanical device, in particular to a steel pile tube internal expansion pile hanger. Background technique [0002] Currently used in hoisting engineering, especially the pile hanger in marine engineering, the central axis of the cylinder barrel and the axially moving wedge are manufactured as one part. Although such a design has the advantage of compact structure, it also brings the disadvantages of complex parts, difficult processing, high requirements, many processing steps for a single part, long cycle time, high quality requirements, and difficult installation and maintenance. Contents of the invention [0003] The object of the present invention is to avoid the deficiencies of the prior art, and provide a steel pile tube internal expansion pile hanger. [0004] The technical solution of the present invention is: a steel pile tube internal expansion type pile hanger, including lifting lugs, a central shaft, a hollow o...

AI Technical Summary

Problems solved by technology

Such a design has the advantage of compact structure, but it also brings the disadvantages of complex parts, difficult processing, high requirements, many processing steps for a single part, long cycle time, high quality requirements, and difficult installation and maintenance.

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