Hinged structure for connecting swing bolster and two sections of vehicle bodies

The invention discloses a hinged structure for connecting a swing bolster and two sections of vehicle bodies. The hinged structure for connecting the swing bolster and the two sections of vehicle bodies comprises an A section connection arm used for being fixedly connected with an A section vehicle body end beam, a B section connection arm used for being fixedly connected with a B section vehicle body end beam, and the swing bolster. The swing bolster is provided with a slewing bearing installation base. The A section connection arm, the B section connection arm and the swing bolster are connected through a three-ring slewing bearing installed on the slewing bearing installation base. An outer ring of the three-ring slewing bearing is fixedly connected with the A section connection arm, a middle ring of the three-ring slewing bearing is fixedly connected with the swing bolster, and an inner ring of the three-ring slewing bearing is hinged to the B section connection arm through an elastic shaft sleeve assembl