High-precision axial force measuring wind tunnel strain balance

The invention relates to a high-precision axial force measuring wind tunnel strain balance which comprises an inner cone of the balance, a five-component measurement member, an axial force frame, an axial force measuring member, a support sheet beam group, an equal-diameter transition section and a back cone of the balance, the axial force frame is provided with a through groove which penetrates up and down in the design center of the balance, the axial force measuring member is arranged in the through groove and penetrates the design center, the axial force frame is divided into upper and down portions by a skewed slot which penetrates the design center in the front and back direction, and the upper and lower portions are connected into an integrated body by the support sheet beam group and the axial force measuring member. Structural design and arrangement manner of an axial force measurement member of a traditional six-component rod balance are changed, the problem that other aerodynamic force components i