| 摘要 |
PURPOSE: A joining structure of a turbine rotor and a bucket and cold assembling method thereof are provided to prevent a loosening of a joining even in an environment of steam of high temperatures and rotation of high speeds because a coupling force of a notch bucket and first and second normal buckets is strengthened. CONSTITUTION: A combination structure of a turbine rotor and a bucket comprises first and second normal buckets(10,11), a notch bucket(12), and pin members(13). The first and second normal buckets respectively comprises combining groove portions(10a,11a) and pin grooves(10b,11b). The combining groove portions are formed in the lower part of a turbine rotor by corresponding to a joining projection portion(3). The first and second normal buckets are respectively inserted through a bucket insertion portion(4) along the joining projections in one and the other direction of the bucket insertion portion. The notch bucket comprises a joining groove portion(12a) and pin grooves(12b,12c). The notch bucket is inserted into the bucket insertion portion. The pin members are respectively inserted into first and second joining holes. |
