Manufacturing method of turbine inter-stage support with cage bars

The invention discloses a turbine interstage support with cage bars, belonging to the technical field of aeroengines, and includes a bearing outer ring, a bearing support plate and a bearing inner ring. The bearing inner ring includes an inner ring mounting edge and a cage bar type The sleeve is composed of a sleeve and an inner edge plate. One end of the cage sleeve is fixedly connected with the inner ring mounting edge. The cage sleeve is provided with several cage bars and supporting parts for fixing the two ends of the cage bars. The cage bars are circumferentially distributed on the turbine The rotor is used for elastic support between turbine stages. Integrating the cage-type elastic support structure into the bearing inner ring can simultaneously meet the bearing capacity of the turbine stage support, control the critical speed of the rotor and the needs of vibration reduction, reduce the number of parts, facilitate assembly, and reduce costs. The cage-type load-bearing inner ring can reduce the heat transfer of the hot gas from the runner to the bearing seat and bearing through the inner ring, reduce the thermal stress of the load-bearing inner ring, reduce the bearing operating temperature, and improve the life and safety of the turbine inter-stage support and the bearing sex

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