| 摘要 |
A device for chocking and retaining a dovetail root (30) of a blade of a gas turbine engine (10) in a corresponding axially-extending slot (34) in the rim of a disc (32), the root being mounted in the slot by insertion of a leading end of the root into a proximal end of the slot and then sliding the root towards a distal end of the slot. The device includes a first wedging body (36) having a key portion (38) receivable in a keyway (40) formed at the distal end of the slot. The keyway restrains the first wedging body against movement in the axial direction. The first wedging body further has a first angled surface (42) over which a correspondingly angled leading end surface 844) of the root slides when the root is inserted in the slot to urge the leading end of the root radially outwardly; and a second wedging body (46), having a second angled surface (48); the wedging bodies urging the blade radially outwardly and retaining the root axially in the slot. |
