公开(公告)号：US5622476A

公开(公告)日：1997-04-22

申请号：US572045

申请日：1995-12-14

申请人： Danielle C. R. Adde ,  Jean-Louis Charbonnel ,  Philippe F. P. Gougeon ,  Gerard G. Miraucourt

发明人： Danielle C. R. Adde ,  Jean-Louis Charbonnel ,  Philippe F. P. Gougeon ,  Gerard G. Miraucourt

IPC分类号： F01D5/30 ,  F01D5/32

CPC分类号： F01D5/323 ,  Y02T50/671

摘要： A fixing arrangement for axially fixing a blade in position on a rotor disk of a turbomachine rotor includes a relatively flexible locking wedge inserted between the root of the blade and the bottom of the axial groove in the periphery of the rotor disk in which the root is received in a radially interlocking manner, the locking wedge having a retaining hook which is received in a groove in the blade root to hold the locking wedge in position. In one embodiment the locking wedge holds a plate in position in the recesses defined by undercut projections on the upstream face of the blade root and the rotor disk to prevent axial movement the blade relative to the disk. In an alternative embodiment the downstream end of the locking wedge has a stop which engages the downstream faces of the blade root and the rotor disk to prevent axial movement of the blade in the upstream direction, and the upstream face of the blade root has a projection which overlaps and bears against an upstream face of the disk to prevent axial movement of the blade in the downstream direction.

摘要翻译： 用于将叶片轴向固定在涡轮机转子的转子盘上的位置的固定装置包括插入叶片根部和转子盘周边中的轴向槽底部之间的相对柔性的锁定楔，其中根部是 以径向互锁的方式接收，所述锁定楔具有保持钩，所述保持钩被容纳在所述叶片根部中的凹槽中以将所述锁定楔保持在适当位置。 在一个实施例中，锁定楔将板固定在由叶片根部和转子盘的上游面上的切削突起限定的凹部中，以防止叶片相对于盘的轴向移动。 在替代实施例中，锁定楔的下游端具有止动件，其与叶片根部和转子盘的下游面接合，以防止叶片沿上游方向的轴向移动，并且叶片根部的上游面具有突起 其与盘的上游面重叠并抵靠，以防止叶片在下游方向上的轴向移动。