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1. 发明专利

JP2004270483A Turbine moving-blade body and assembly method 审中-公开
公开(公告)号：JP2004270483A
公开(公告)日：2004-09-30
申请号：JP2003059696
申请日：2003-03-06
申请人： Toshiba Corp , 株式会社東芝
发明人： KUMANO SATORU , OKUNO KENICHI , SAKATA MORITO , MURAKAMI TORU , SHIBAGAKI TORU
IPC分类号： F01D5/32 , F01D25/00 , F02C7/00
摘要： PROBLEM TO BE SOLVED: To provide a turbine moving-blade body having a structure for locking in a small rotor a fixed blade for securing a turbine moving-blade in an undisplaceable manner in the peripheral direction.
SOLUTION: The fixed blade 11 is for securing an embedded part 11a embedded in a rotor 1 of a turbine moving blade so as not to displace in the circumferential direction in an engagement groove 2. An engaging member 14 is for inserting the fixed blade 11 in a notch 12. A locking means 13 is for locking the engaging member 14 to the rotor. By combined use of the engaging member 14 and the locking means 13, the fixed blade 11 is locked in an undisplaceable manner in the axial and radial directions of the turbine shaft. Shapes, constructions, and dimensions of the notch 12, the engaging member 14 and the locking means 13 can be set freely to some extent, and accordingly the turbine performance can be enhanced by reducing the dimension of in the radial and axial directions of the rotor 1.
COPYRIGHT: (C)2004,JPO&NCIPI

2. 发明专利

JP2002349207A TURBINE ROTOR BLADE 失效
公开(公告)号：JP2002349207A
公开(公告)日：2002-12-04
申请号：JP2001152872
申请日：2001-05-22
申请人： TOSHIBA CORP
发明人： SAKATA MORITO , SUZUKI TOSHIO , KOMIYAMA MANABU
IPC分类号： F01D5/30
摘要： PROBLEM TO BE SOLVED: To increase degree of freedom of pinhole arrangement of a turbine rotor blade and a rotor wheel planting part, and to reduce shearing stress generated around the pinhole of the each planting part. SOLUTION: This turbine rotor blade is provided with a blade 1 including the forked planting part 2 and a wheel 5 including a groove 6 corresponding to the planting part 2 of the blade 1 at an out circumference part and has a forked planting structure making pin holes 4, 8 formed on a groove forming wall 7 of the wheel 5 and the planting part 2 of the blade 1 coincide with each other and inserting the planting part 2 of the blade 1 into the groove 6 of the wheel 5 and locking the same with a pin. The pinhole 8 formed on the groove- forming wall 7 of the wheel 5 and the pinhole 4 formed on the planting part 2 of the blade 1 is arranged in a staggered arrangement relative to a rotor radius line.

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