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Steel pile pipe internal expansion type pile lifter
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.
Steel pile pipe internal expansion type pile lifter
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.
Steel pile pipe internal expansion type pile lifter
JIA FANGMIN (author) / GAO TIANBAO (author) / JI YANTAO (author) / CHI YANFEN (author) / WEI ZHONGGE (author) / WANG YUN (author) / GENG LIGUO (author)
2015-08-26
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2018
STEEL PIPE PILE DEVICE, STEEL PIPE PILE AND METHOD FOR INSTALLING STEEL PIPE PILE
| European Patent Office | 2018