Locking device for welding pre-deformation of steel box girder plate unit

• Main Authors: ZHANG PENGFEI, WANG JIANGUO, WANG LIWEI, KANG KAI, ZHAO XUDONG, JIA XIUFENG, LIU YANG, WANG JINYU, TANG XILONG, CHEN LIN
• Format: Patent
• Language: Chinese; English
• Published: 11.10.2022
• 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 invention discloses a steel box girder plate unit welding pre-deformation locking device which comprises four steel box girder units matched with one another, the four steel box girder units are jointly provided with a rectangular-ambulatory-plane mounting groove, a locking box is jointly connected into the mounting groove in a matched mode, a locking plate is slidably connected into the locking box, and the locking plate is connected with the locking box in a matched mode. The locking plate is provided with four locking bolts matched with the four steel box girder units, a plurality of compression springs are fixedly arranged at the top of the locking plate, a hydraulic cylinder is fixedly arranged at the other end of each compression spring, the fixed ends of the hydraulic cylinders are fixedly arranged at the inner top of the locking box, and the fixed ends of the hydraulic cylinders are fixedly arranged at the inner top of the locking box. And a gap filling structure is arranged in the locking box. Th