US 12,422,486 B2
Inspection device for rotary electric machine, inspection system for rotary electric machine, inspection method for rotary electric machine, and rotary electric machine to be inspected using inspection device
Daichi Goto, Tokyo (JP); Naotaka Tsujimura, Tokyo (JP); and Yoshihiro Morimoto, Tokyo (JP)
Assigned to Mitsubishi Generator Co., LTD., Kobe (JP)
Appl. No. 18/259,816
Filed by MITSUBISHI GENERATOR CO., LTD., Kobe (JP)
PCT Filed May 25, 2021, PCT No. PCT/JP2021/019831
§ 371(c)(1), (2) Date Jun. 29, 2023,
PCT Pub. No. WO2022/249290, PCT Pub. Date Dec. 1, 2022.
Prior Publication US 2024/0085480 A1, Mar. 14, 2024
Int. Cl. G01R 31/34 (2020.01)
CPC G01R 31/34 (2013.01) 18 Claims
OG exemplary drawing
 
1. An inspection device for a rotary electric machine, which inspects an inspection target part by being inserted into a gap between an inner circumferential surface of a stator and an outer circumferential surface of a rotor of the rotary electric machine, the inspection device comprising:
a base frame;
a traveling body which is attached to the base frame and moves the base frame in an axial direction in the gap;
a probe which is carried by the base frame and inspects the inspection target part;
a radial-movement portion which moves the probe in a radial direction perpendicular to the axial direction and a circumferential direction relative to the traveling body; and
a circumferential-movement portion which moves the probe in the circumferential direction in the base frame relative to the traveling body.