Connecting structure for swing bolster and single car body

The utility model discloses a connecting structure for a swing bolster and a single car body. The connecting structure for the swing bolster and the single car body comprises the swing bolster connected with the car body through a connecting component. An upper cover plate of the swing bolster is provided with a slewing bearing mounting base, a slewing bearing is installed on the slewing bearing mounting base, and the slewing bearing comprises an outer ring and an inner ring capable of rotating relative to the outer ring. The inner ring is fixedly connected with the slewing bearing mounting base, and the outer ring is fixedly connected with a car body mounting base of the car body. By the adoption of a slewing bearing structure, a center plate and side bearing structure is simplified, the possibility that the swing bolster is mounted along with the car body is achieved, the special requirement of a vehicle for a small radius curve is met, and the potential problem that the friction coefficient of a side beari