Variable cross-section tower body conversion joint structure of tower crane

• Main Authors: WEN YANYUAN, LI WEI, QIU JIE, PENG NAN, DING BANGJUN
• Format: Patent
• Language: Chinese; English
• Published: 19.01.2021
• Subjects: BLASTING; CRANES; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HAULING; HEATING; HOISTING; LIFTING; LIGHTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

The utility model discloses a tower crane variable cross-section tower body conversion joint structure which comprises a base, four sets of installation plates are installed on the upper portion of the base, the installation plates are fixedly connected with the base through bolts, and the installation plates are of a rectangular structure and arranged on the surface of the base. A first square column is arranged on the upper portion of the mounting plate and fixed to the mounting plate in a welded mode, a second square column is arranged on the upper portion of the first square column, and aconnecting piece is arranged at the joint of the first square column and the second square column. The connecting piece is arranged at the joint of the first square column and the second square column, the connecting piece is of a rectangular structure and wraps the joint of the first square column and the second square column, the side faces of the connecting piece are fixed through the fasteningbolts, meanwhile, the cla