To provide a torque transmission structure capable of transmitting a torque of a low temperature rotary machine by means of a torque tube made of FRP without being affected by an axial force of a bolt.
In a torque transmission structure 1 of a low temperature rotary machine, provided with a torque tube 10 for transmitting a rotary torque of a rotor core 20 provided with a superconducting coil to a rotor and bolts for fixing the torque tube 10 to the rotor core 20, the torque tube 10 is formed of a fiber-reinforced plastic having a cylindrical part arranged between the rotor core 20 and the rotor and a rotor-core-side flange 11 including a junction surface 12 in the direction right-angled to the axis of the cylindrical part. The junction surface 12 of the rotor-core-side flange 11 and a junction surface 21 of the rotor core 20 have engagement parts 30 which are engaged with each other in the circumferential direction, respectively.
IWASAKI ISATO
TSUMURA YOSUKE
MURAKISHI OSAMU
SATOU HISAYASU
UMEMOTO KATSUYA
