Bearing wheel integrated mounting seat for gauge-changeable bogie

The invention belongs to the technical field of bogie systems, and particularly relates to a bearing wheel integrated mounting seat for a gauge-changeable bogie. The bearing wheel integrated mountingseat comprises a bearing mounting seat, a wheel mounting seat and a sliding pair joint, the bearing mounting seat and the wheel mounting seat are mutually connected, and the degree-of-freedom direction of the sliding pair joint is as same as the axial direction of an axle. The invention aims to provide a mounting seat to solve the problem that transportation efficiency of a train is low when the train passes railways with different rail gauges, the mounting seat is applied to the bogie, and wheels can be adjusted relative to axles in the axial direction, so that wheel set wheel gauges of the gauge-changeable bogie adapt to the railways with different rail gauges. Railway transportation of a 'silk road economic belt' is implemented, the problem of non-uniform railway gauges needs to be solved, and the most economic