Fastening structure of ring gear

摘要

Disclosed is a fastening structure of a ring gear, wherein a ring gear is fastened to a flange of a differential case constituting a differential subassembly. The ring gear has an inner peripheral surface to be press-fitted to the outer peripheral surface of the flange, and is swaged by a swaging portion provided on at least one end of the flange in the axial direction. In order to prevent the ring gear from deforming in the radial direction, an engaging means for engaging the flange with the ring gear using the relationship between a recess and a protrusion is provided. The engaging means is comprised of a recess formed at an end face of the ring gear and a protrusion formed on the flange. The protrusion is engaged in the recess by swaging.

主权项

1. A fastening structure of a ring gear to fasten the ring gear to a flange of a differential case constituting a differential sub-assembly, wherein
an inner circumferential surface of the ring gear is press-fitted to an outer circumferential surface of the flange, the ring gear is swaged by a swaging part provided on at least one of both ends of the flange in an axial direction, and the fastening structure includes an engaging device for engagement between the flange and the ring gear in a recess-and-protrusion relationship to prevent deformation of the ring gear in a radial direction wherein the inner circumferential surface of the ring gear is separated from the outer circumferential surface of the flange, wherein the engaging device includes a protrusion formed in an end surface of the ring gear and a recess formed in the flange, the recess being configured in a manner that a protruding part formed in the flange is deformed by swaging.