Three-legged mast hoisting device

• Main Authors: ZHANG YACHONG, HU BAOWEI, TANG DEHAI, XU SHUTAO, LUO JIANGPING, XIAO JIN, YANG YONGWEI
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: CRANES; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TRANSPORTING

A three-legged mast hoisting device comprises base plates, supporting legs, two sets of reinforcing rods, a cross beam, a support lifting device and an upper lifting sliding device, each supporting leg is of a two-section structure, an adjusting device and two sets of reinforcing rods are installed between each two sections of supporting legs, the lower ends of the two sets of supporting legs are installed at the upper ends of the base plates respectively, and the cross beam is connected with the support lifting device. The lower end of each set of reinforcing force rod and the upper end of a set of hydraulic oil cylinder A are fixedly installed together, and the lower end of the hydraulic oil cylinder A is installed on the base plate. The lower portions of the front ends and the rear ends of the two cross beams are installed together with the upper ends of the two supporting legs and the upper ends of the reinforcing rods respectively, and the upper ends of the two cross beams are each provided with a limiti