Composite transmission shaft joint

摘要

A fibre reinforced composite shaft bearing a metallic flanged end coupling (F 1 ) attached to the outside diameter through a concentric cylindrical torsional joint, comprising: a)-a cylindrical end region comprising a wedge shaped inner layer of fibre (Hp) composite; b)-a layer of outer helical composite plies (He) forming the shaft and extending over the wedge shaped inner layer, wherein the layer of outer helical plies has a tapered end part overlying wedge shaped inner layer to form the cylindrical end portion, wherein all helical plies of fibre layers are exposed on an outer surface; and c)-a metallic flanged end coupling attached to the outer surface of the cylindrical end region through a primary mechanically interface (Sp) which may be splined. The joint may be strengthened by internally reinforcing the main shaft with an interference fit tubular plug (Pg) and protected from environmental degradation by inboard secondary adhesive bond (Ad).