Assembly structure of differential shell and planetary gear shaft

An assembling structure of a differential shell and a planetary gear shaft comprises the differential shell, the planetary gear shaft arranged in the differential shell, a planetary gear arranged on the planetary gear shaft in a sleeving mode and a spherical gasket clamped and cushioned between the planetary gear and the differential shell, the ends of the planetary gear shaft extend into connecting holes in the differential shell respectively, one end of the planetary gear shaft is positioned with the differential shell through a positioning pin, and the other end of the planetary gear shaft is positioned with the differential shell through a positioning pin. The connecting structure is characterized in that the aperture of the connecting hole is increased, the wear-resistant bushing is pressed in the connecting hole in an interference manner, the end part of the planetary gear shaft extends into the wear-resistant bushing, and the wear-resistant bushing is matched with the spherical gasket to limit the rota