Large telescopic compensation joint flange welding alignment mechanism

• Main Authors: WU KEYANG, WU JIANCHAO
• Format: Patent
• Language: Chinese; English
• Published: 24.01.2023
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The utility model discloses a large expansion joint flange welding alignment mechanism which comprises a centering support and an alignment piece, the centering support comprises a horizontally-arranged cylindrical nut, the directions of threads at the two ends of the interior of the cylindrical nut are opposite, the two ends of the interior of the cylindrical nut are in threaded connection with screws, and the two ends of the interior of the cylindrical nut are in threaded connection with the alignment piece. A cross rod is arranged at the end, away from the cylindrical nut, of the screw rod, sleeves used for making contact with the inner wall of the expansion joint flange sleeve are arranged at the two ends of the cross rod, and a positioning base is rotationally arranged in the middle of the cylindrical nut. According to the flange welding alignment mechanism for the large telescopic compensation joint, a split type structure is adopted, the centering support can be installed in an inner pipe or an outer p