Centering adjustment tool for reactor coolant pump

The utility model belongs to the technical field of nuclear power plant maintenance, and particularly relates to a centering adjusting tool for a reactor coolant pump. The device comprises a positioning plate, a rib plate, a dial indicator frame and a dial indicator mounting hole, a positioning dial indicator frame is mounted at the central position outside the positioning plate, and the positioning plate is connected with the positioning dial indicator frame through the rib plate; a dial indicator mounting hole is formed in the positioning indicator frame and used for mounting a dial indicator. According to the utility model, the centering precision and the centering efficiency of the main pump and the motor can be improved. 本实用新型属于核电厂维修技术领域，具体涉及一种反应堆冷却剂泵对中调整工具。本实用新型包括定位板、肋板、表架、百分表安装孔，定位板外部的中心位置安装有定位表架，定位板与定位表架通过肋板连接；在定位表架上设有百分表安装孔，用于安装百分表。本实用新型能够提高主泵与电机的对中精度与对中效率。