Rotor head of rotary wing aircraft having a refrain bar between the elastic return for the wings of damping device built-in

摘要

PURPOSE: To remove the excessive coupling to a rotor head by holding an essential toggle joint on a means for connecting a blade to a hub in the radially outside beyond the intersection forming the single center of the joint connecting of a connecting member to the hub. CONSTITUTION: A blade-to-blade connecting device having a plurality of resilient- return tie rod 29 with built-in damping arrangement mounted in a ring form is provided around a hub 1. An essential toggle joint 41 is situated about on the feathering axial line X-X, and held by a means 13 for connecting a blade to the hub 1 in the radially outside beyond the intersection C where the flapping axial line, the drag axial line and the feathering axial line cross to form the single center of the joint connection of a connecting member 13 to the hub 1. According to this, the excessive coupling to a rotor head can be removed.