FIELD: mechanical engineering; turbine building.
SUBSTANCE: proposed dovetail joint between rotor wheel and blade has male component of joint of rotor wheel and female component of joint on blade. Male component is provided with great number of projections over perimeter found at opposite sides of plane perpendicular to axis and dividing male component of joint in two halves. Surface of at least pair of projections on each of opposite sides of plane form angle α with plane and pass from said plane to said axis and from axis. Angles of surfaces of each pair of projections on each opposite side of plane are equal. Pocket is found at opposite sides of male component of joint which adjoins its base and has surface pointed to axis arranged at angle. Female component of joint has shank to be fitted in said pocket which is provided with surface pointed to axis and arranged at angle. Angle of surface of shank arranged at angle is greater than surface of pocket arranged at angle.
EFFECT: reduced concentration of stresses in joint.
8 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FIRST STAGE DISC OF TURBOJET ENGINE LOW-PRESSURE COMPRESSOR ROTOR SHAFT (VERSIONS) | 2015 |
|
RU2603217C1 |
| STEAM TURBINE, AND TURNING BLADE (VERSIONS) | 2008 |
|
RU2471998C2 |
| TURBOJET ENGINE LOW-PRESSURE COMPRESSOR FIRST STAGE ROTOR IMPELLER (VERSIONS) | 2015 |
|
RU2603382C1 |
| THIRD STAGE DISC OF TURBOJET ENGINE LOW-PRESSURE COMPRESSOR ROTOR SHAFT (VERSIONS) | 2015 |
|
RU2603219C1 |
| SECOND STAGE DISC OF TURBOJET ENGINE LOW-PRESSURE COMPRESSOR ROTOR SHAFT (VERSIONS) | 2015 |
|
RU2603215C1 |
| TURBOJET ENGINE LOW-PRESSURE COMPRESSOR SECOND STAGE ROTOR IMPELLER (VERSIONS) | 2015 |
|
RU2603383C1 |
| TURBOJET ENGINE LOW-PRESSURE COMPRESSOR THIRD STAGE ROTOR IMPELLER (VERSIONS) | 2015 |
|
RU2603384C1 |
| GAS TURBINE ENGINE LOW-PRESSURE COMPRESSOR ROTOR SECOND STAGE DISC (VERSIONS) | 2015 |
|
RU2603218C1 |
| GAS TURBINE ENGINE LOW-PRESSURE COMPRESSOR ROTOR FIRST STAGE DISC (VERSIONS) | 2015 |
|
RU2603304C1 |
| GAS TURBINE ENGINE LOW PRESSURE COMPRESSOR ROTOR IMPELLER (VERSIONS) | 2015 |
|
RU2603377C1 |
