Single-track bogie and track vehicle with single-track bogie

The invention provides a single-track bogie. The single-track bogie comprises a framework, a traction device fixed on the framework, gearbox bases firmly disposed on the framework and a motor base firmly disposed on the framework, wherein the framework comprises two centrally symmetric longitudinal beam modules; and lower cover plates of the longitudinal beam modules are integrated with the motor base. Because of the form of integrating the motor base and longitudinal beams, manufacture is more convenient, time spent on separation installation of the motor base is saved, and operation efficiency is increased. In addition, intensity of parent materials of the integral structure is stronger than intensity of a combined structure. The gearbox bases are disposed inside the longitudinal beam modules, so an integral structure is formed by the gearbox bases and the longitudinal beam modules. In this way, the installed gearbox structure is more stable; the gearbox bases are not shaken easily during gearbox work; and