SHAFT CONNECTION STRUCTURE AND SHAFT CONNECTION METHOD

摘要

A shaft connection device facilitates the engagement between male and female spline shafts and prevents the runout of the shafts after the engagement. A shaft connection device for connecting a pair of rotating shafts by engaging a pair of male and female spline shafts (7, 11). The shaft connection device is provided with: a shaft connection assistance device (21) for aligning the axes of the pair of spline shafts with each other prior to the engagement between the pair of spline shafts; and a shaft runout prevention mechanism for preventing the runout of the spline shafts after the engagement between the pair of spline shafts. The shaft connection assistance device (21) comprises: a centering ring (22) which is disposed outside one spline shaft (7) of the pair of spline shafts (7, 11) so as to be coaxial therewith; and centering pins (23) which are disposed outside the other spline shaft (11) so as to be located on the same circle, which is centered on the other spline shaft (11), with predetermined angular intervals provided therebetween and which engage with the outer peripheral surface of the centering ring (22) to align the axes of the pair of spline shafts (7, 11) with each other.