Two-degree-of-freedom model supporting device for low-speed wind tunnel test

The utility model discloses a two-degree-of-freedom model supporting device for testing a fixed airfoil profile in a low-speed wind tunnel. The device comprises a force measuring balance, a scale base, an alignment tray, a scale convex circle, an L-shaped supporting rod, a U-shaped telescopic rod, a butterfly bolt and the like. The bottom of the scale base is installed on the force measuring balance, the top is matched with the alignment tray through precise threads, and the windward direction of a measured piece can be changed by rotating the alignment tray. The scale convex circle is arranged in the alignment tray through the shaft bracket, and the attack angle of the measured piece can be changed by rotating the convex circle; and the tested piece is pressed and fixed by the pressing sheet and the bolt and is kept horizontal with the upper part of the L-shaped supporting rod. The device can realize the assembly of the model and the force measuring balance, changes the angle between the incoming flow direct