Shafting structure of turbojet engine

The invention relates to the technical field of turbojet engines, in particular to a turbojet engine shafting structure which comprises a bearing sleeve, a cooling ring, an isolating ring and the like, and the bearing sleeve is provided with a first air-entraining hole, a second air-entraining hole, a third air-entraining hole and a pressure equalizing pipe. Aiming at the technical problems of difficulty in air entraining amount control, rotor and stator cooling design and bearing lubricating oil gas circuit design of a small turbojet engine, the turbojet engine shafting structure disclosed by the invention forms a specific circulation structure, namely a specific air system, and the air system realizes cooling of a rotor and a stator and lubrication of a front bearing and a rear bearing; according to the air system, the mutual interference of the pressure of the flow path circulation cavity is reduced, so that the design of the air entraining amount of different areas can be more conveniently realized, and t