Ball and damper coupling device for a helicopter rotor, and helicopter rotor with it

摘要

PROBLEM TO BE SOLVED: To provide a ball for a rotor of a helicopter for lengthening the life of a connector by dispersing stress due to applied displacement and load, a damper connector, and a rotor of a helicopter having it. ;SOLUTION: Two opposite independent modules are constituted by laminated balls 6, 6' and flat laminated dampers 7, 7'. The laminated dampers 7, 7' are connected to a torque tube 2 by outer connecting elements 10, 10' of outer end parts. The laminated balls 6, 6' including a lamination of a metal layer and an elastomer layer are connected to a flexible wing spar 1 by inner connecting elements 8, 8' of the inner end parts. A connecting element 3 for reinforcing the space between an intermediate connecting element 9 in one module and an intermediate connecting element 9' in the other module and connecting the same is provided on the connecting device, which is interposed between the flexible wing spar 1 and the torque tube 2.;COPYRIGHT: (C)2004,JPO