Double-load trolley of tower crane

• Main Authors: WANG KEWEI, LIU ZUNZHENG, GUO CHONGSONG, WANG JIANJUN, LI HAIFENG
• Format: Patent
• Language: English
• Published: 01.07.2015
• Subjects: CRANES; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TRANSPORTING

The utility model discloses a double-load trolley of a tower crane. The double-load trolley includes a rear trolley, a front trolley, an auxiliary lifting hook and a main lifting hook, wherein the rear trolley includes a rear trolley frame, a guide roller and a pulley block; the front trolley includes a front trolley frame, a guide roller and a pulley block; the rear trolley and the front trolley move on a rail of a cargo boom through the guide rollers, and are fixed or separated through a trolley connecting shaft; the auxiliary lifting hook is connected with the pulley block of the rear trolley through a steel wire rope; the main lifting hook is connected with the pulley block of the front trolley through a steel wire rope; the auxiliary lifting hook and the main lifting hook are fixed or separated through a lifting hook connecting plate. According to the utility model, the load trolley is designed to adopt a double-trolley structure, and the trolleys are mutually connected, so that when the four multiplying power hoisting is used, the two trolleys are used, and the steel wire rope is prevented from being wound as the entire width of the double trolleys is larger; and when the two multiplying power hoisting is used, one trolley is used, and the other trolley is fixed at the root of the cargo boom, so that the total weight of the load trolley is reduced, and the hoisting performance of the complete machine is greatly improved.