| 摘要 |
FIELD: machine building.SUBSTANCE: main bearing journal of the bearing of gas-turbine engine inner shaft as well as assembly of the main bearing journal and a sealing bush. The main bearing journal comprises a device to hold the sealing bush (200) embracing the said shaft. The holding device includes a solid radial ring flange made on the inlet side on the axial cylindrical part of the main bearing journal and tangential blocking tools. The solid flange is designed for axial stop against the ring radial flange of the sealing bush. The tangential blocking tools are made on the outlet side of the axial cylindrical part of the main bearing journal and are designed for tangential blocking of the sealing bush in relation to the main bearing journal. The assembly comprises the ring radial flange including a lubrication ring, the lubrication ring is in surface contact with the inner side of the main bearing journal and its input end axially rests against the radial ring flange of the axial stop provided at the main bearing journal.EFFECT: reducing wear due to the distribution of tangential and axial stresses in main bearing journal.22 cl, 25 dwg |
