Rear force-bearing oil supply structure of aero-engine turbine

The invention provides a rear force-bearing oil supply structure of an aero-engine turbine, and belongs to the technical field of aero-engines. The oil supply structure comprises a supporting frame used for supporting the oil supply structure, an oil inlet guide pipe and a horn mouth connecting pipe which are fixed through the supporting frame, and an oil supply pipe connected with the horn mouth connecting pipe. The horn mouth connecting pipe is connected with the oil supply pipe in a sealing mode through a sealing pressing head and a pressing nut. According to the oil supply structure, the sealing function structure and the pressing function structure of the pipe joint are designed in a decoupling mode, the tolerance capacity of the pipe joint is improved, and the sealing performance of the pipe joint is still good under the condition that the structure is out of tolerance or deforms due to multiple times of assembly; the displacement of the oil supply pipe structure in the axial direction and the circumfer