Middle power bogie of heavy-load multi-body hinged middle-high floor light rail vehicle

The invention discloses a middle power bogie of a large-load multi-body hinged middle-high floor light rail vehicle, which comprises two groups of wheel set axle box devices, and each wheel set axle box device comprises an axle, wheels and axle boxes, the framework is used for erecting an axle, a primary suspension device is connected between the framework and the axle box, and a central suspension device is arranged in the middle of the framework; the traction driving device and the foundation braking device are arranged in the framework; the traction device is arranged on the outer side of the framework side beam; a brake disc arranged on the foundation brake device is mounted on the axle, and a brake clamp arranged on the foundation brake device is mounted on the framework end beam; one end of the traction rod is connected with a traction rod seat arranged on the side beam of the framework, and the other end of the traction rod is connected with a swing bolster of the central suspension device. The problem