DEVICE FOR SECURING A BLANKET MODULE TO A FUSION REACTOR VACUUM VESSEL

The invention relates to the field of thermonuclear fusion and can be used in devices for securing a blanket module to the vacuum vessel of a fusion reactor. A device for securing a blanket module to a fusion reactor vacuum vessel comprises a flexible support in the form of rods that are mounted between two flanges, a displacement compensator, and a threaded fastening member in the form of a locknut with a male thread. The displacement compensator is mounted on the flange of the flexible support which is oriented towards the module, said flange having a concave spherical surface, and is rigidly connected to the blanket module, wherein the displacement compensator comprises a locking screw and a supporting sleeve, which are pivotally interconnected, a spacer sleeve, and a coupling sleeve with a spherical protuberance. The spacer sleeve is movably connected to the locking screw and has a convex spherical surface and a concave spherical surface, which form a pivot connection to the flange of the support and to the spherical protuberance of the coupling sleeve respectively. The coupling sleeve is rigidly connected to a stop surface of the locknut. The technical result of the present invention is an increase in the permissible amount of tension force in the threaded joint between the flexible support and the module, which increases the load-support capacity of the device, prevents possible weakening of the threaded joint by virtue of self-locking ability, and provides for self-compensation of angular and axial displacements occurring as the module is mounted on the vacuum vessel.