Adjustable container portal crane lifting appliance torsion inhibition method and device

• Main Authors: YANG ZHI, HAO YUNSONG, LIU FENG, YAO XUECHENG, ZHU LIANYI, CAO HAIXIN, LI XIN, GUO ZHIGANG
• Format: Patent
• Language: Chinese; English
• Published: 05.01.2021
• Subjects: CAPSTANS; CRANES; HAULING; HOISTING; HOISTS; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TACKLES, e.g. PULLEY BLOCKS; TRANSPORTING; WINCHES

The invention discloses an adjustable container portal crane lifting appliance torsion inhibition method and device The device comprises two sets of lifting appliance upper frame pulley supporting structures installed on a lifting appliance upper frame main structure, two lifting appliance upper frame pulleys installed through two sets of lifting appliance pulley assembly shafting arranged on eachsupporting structure, adjustable rope-out-preventing guardrails arranged on the lifting appliance upper frame pulley supporting structures and adjusting and fastening assemblies arranged on the lifting appliance upper frame pulley supporting structures. A method of performing mechanical transformation on the lifting appliance upper frame pulley assembly structures is adopted, and the uneven stress condition of four hanging ropes of a winding drum is improved by adjusting the lengths of annular sleeves on main shafts on the two sides of the upper frame pulleys, so that the influence of reciprocating torsion in the des