Rotatable shield tunneling machine lifting lug

• Main Authors: CHEN WEI, MA SAI, XUE BIN, MA SHAOQI, ZHANG SHIWEI, MENG YIMIN, HE KAIWEI, XIA YAMING, YU ZHONGXIAO, WU HAO
• Format: Patent
• Language: Chinese; English
• Published: 19.07.2024
• Subjects: CRANES; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TRANSPORTING

The utility model relates to the technical field of shield tunneling, in particular to a rotatable lifting lug of a shield tunneling machine, and solves the problem that in the prior art, a lifting lug structure is prone to structural failure during horizontal lifting. A rotatable lifting lug of a shield tunneling machine comprises a main lifting lug plate and a lifting lug base arranged on a cutter head, and the main lifting lug plate is rotationally connected with the lifting lug base. The lifting lug has the beneficial effects that a revolute pair is formed between the main lifting lug plate and the lifting lug seat, so that the main lifting lug plate can be adjusted according to different lifting states of the cutterhead in the horizontal lifting process of the cutterhead so as to reach an optimal stress position, and a load can always act on a strong structure with a bearing capacity designed by the lifting lug; and the safety of the cutter head in the hoisting process is improved. 本实用新型涉及盾构技术领域，特别是指一种可旋