Method and tool for repairing yaw driving flange of main frame of wind generating set

• Main Authors: CHEN BIN, ZHAO HAIYAN, LU LIGANG, ZHOU XUEKAI, SUN WEIPING
• Format: Patent
• Language: Chinese; English
• Published: 03.11.2023
• Subjects: COMBINED OPERATIONS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention discloses a method and a tool for repairing a yaw driving flange of a main frame of a wind generating set. The method comprises the following steps: removing parts around a deformed hole and pre-treating the surface; installing a positioning reference tool based on the assembling surface of the yaw bearing, and determining a reference surface; determining a mounting surface of the milling device based on the reference surface, and adjusting; roughly milling the flange surface to a preset depth; measuring whether the distance from the roughly milled flange surface to the reference surface meets the requirement or not; roughly milling to a preset depth, and then finely milling to a standard depth; the milling device is dismantled, a boring positioning tool is installed on the basis that the flange face obtained after finish milling serves as a positioning face, and adjustment is conducted; finely boring the flange hole to a preset size; broaching and tapping are conducted on original bolt holes in