Ultrasonic detection test block for yaw and variable pitch bearing of in-service wind driven generator

• Main Authors: LI JIAOJIAO, YIN ZUN, GAO LEI, GAO YANZHONG, LIN LIN, SUN PUJIE, ZHU TING, HOU ZHAOTANG, LYU YOU, MENG YONGLE, LYU YINAN
• Format: Patent
• Language: Chinese; English
• Published: 12.07.2022
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

The utility model discloses an ultrasonic detection test block for yaw and variable pitch bearings of an in-service wind driven generator, and belongs to the technical field of measuring equipment. Comprising a first test block and a second test block, a plurality of bolt holes are formed in the first test block and the second test block, and a plurality of manual rectangular grooves are formed in the inner walls of partial bolt holes; the plane where the artificial rectangular groove of the first test block is located is located in the radial direction from the bolt hole axis to the raceway and perpendicular to the bearing end face; the plane where the artificial rectangular groove of the second test block is located is located in the radial direction from the bolt hole axis to the gear and perpendicular to the bearing end face. According to the utility model, the positions of crack type defects in the bearing of an in-service unit and an ultrasonic detection environment can be simulated more truly, so that