High-bearing-capacity connecting structure of spacecraft bearing cylinder

The high-bearing-capacity connecting structure comprises an inner hole sleeve and an outer hole sleeve, the inner hole sleeve and the outer hole sleeve are each of a hollow rotary body structure and comprise a cylindrical section and a flanging section, the flanging section and the cylindrical section are coaxial and arranged at one end of the cylindrical section, internal threads are arranged on the inner wall of the cylindrical section of the inner hole sleeve, and external threads are arranged on the outer wall of the cylindrical section of the outer hole sleeve; the center of the outer hole sleeve is connected with a steel wire thread insert and serves as an external connector, the drawing allowable load acting on the steel wire thread insert is not lower than 1.5 kN, and the shearing allowable load acting on the steel wire thread insert is not lower than 10 kN. According to the invention, the requirement of large bearing capacity of a thin plate similar to a bearing cylinder type honeycomb sandwich plate