Force transmission structure suitable for short and small blade high-temperature test

The invention belongs to the technical field of blade test devices, and particularly relates to a force transmission structure suitable for a short and small blade high-temperature test, which is used for clamping and applying a load to a short and small blade in the high-temperature test. A high-pressure turbine rotor blade in an aero-engine has the characteristics of short blade body, complex geometric shape and the like, so that a blade test piece is difficult to clamp. According to the invention, a blade-clamp integrated design is adopted, a blade test piece and a profiling blade crown are welded together by using a brazing process, and a load acting in a blade height direction acts on a blade tip through a clamp, so that clamping and load transmission of the blade test piece are completed; meanwhile, in order to prevent a brazed part from being damaged in advance due to heating, a cooling water channel is designed and used for reducing the temperature around a weld joint; the upper adapter, the force tra