TURBOMACHINE ASSEMBLY, COMPRISING VANE SUPPORTING PARTS AND SYSTEM FOR LOCKING SAID PARTS, TURBOMACHINE COMPRISING SAID ASSEMBLY, AND METHOD OF INSTALLING SAID ASSEMBLY Russian patent published in 2018 - IPC F01D25/24 F01D9/04 

FIELD: machine building.

SUBSTANCE: turbomachine assembly comprises two turbomachine vane supporting parts and a system for locking the parts to prevent their relative translational movement in the axial and radial directions relative to the axis of the turbomachine. Locking system comprises a split rim, having a U-shaped cross-section, adapted to receive the end of both parts and having two arms connected by a cross member. One of the arms of the rim and the part facing said arm have engaging teeth adapted for such interaction, which ensures interaction by engaging the rim on said part. When engaging the rim on said part, the rim first interacts with said parts so that the ends of the parts are placed between said arms of the rim, and the engaging rim teeth are offset relative to the engaging teeth of the part. Rim is then rotated relative to the parts so that the engaging teeth of the rim face the engaging teeth of the part, and the rim forms an abutment for the part in the axial direction of the translational movement. Locking system further comprises a member to prevent the rim from rotating relative to the part with which it engages. Another invention of the group relates to a turbomachine with said assembly. When installing said assembly, both axisymmetric parts are installed concentrically one inside the other, the split rim is moved and engaged with one of the parts. Member is positioned to prevent the rim from rotating relative to the part.

EFFECT: group of inventions makes it possible to increase the reliability of the turbomachine assembly, which ensures that the parts are held together in order to support the blades allowing thermal expansion of the said parts.

12 cl, 12 dwg