Disk hoisting tool
View Patent ↗Provided is a disk hoisting tool which can prevent deformation or fracture of corner portions of a fitting groove, falling of a disk, and damage to a surface forming the fitting groove, and can safely reverse the disk. The disk hoisting tool which is mounted so as to hoist a disk where a plurality of fitting grooves penetrating in a plate thickness direction are circumferentially formed in a peripheral portion, the disk hoisting tool including a hoisting body ( 11 ) that includes: an eye plate ( 21 ) having a through hole penetrating in a plate thickness direction; and a fitting projection ( 22 ) formed so as to be fitted with the fitting groove.
1. A disk hoisting tool which is mounted so as to hoist a compressor disk and/or a turbine disk for mounting blades where a plurality of fitting grooves for engaging blades that penetrate in a plate thickness direction are circumferentially formed in a peripheral portion, said disk hoisting tool comprising:
a hoisting body comprising:
an eye plate comprising a through hole penetrating in a plate thickness direction;
a fitting projection formed so as to be fitted with the fitting groove; and
a fixing means that fixes the hoisting body to the disk,
wherein the fixing means comprises:
a first stopper arranged at one end portion of the fitting projection located on one end surface side of the disk to restrain movement of the hoisting body to the other end surface side of the disk;
a first fixing portion inserted into a hole formed in the one end portion of the fitting projection and a hole formed in the first stopper to fix the first stopper to the one end portion of the fitting projection;
a second stopper arranged at the other end portion of the fitting projection located on the other end surface side of the disk to restrain movement of the hoisting body to the one end surface side of the disk; and
a second fixing portion inserted into a hole formed in the other end portion of the fitting projection and a hole formed in the second stopper to fix the second stopper to the other end portion of the fitting projection,
wherein the fitting projection is a member that has a same shape as a blade root of the blade to be embedded in the fitting groove.
2. The disk hoisting tool according to claim 1 , wherein
each of the hole formed in the one end portion of the fitting projection and hole formed in the other end portion of the fitting projection is formed such that its axial line is aligned with a longitudinal direction of the fitting projection.