Mach number adjusting mechanism suitable for trans-supersonic wind tunnel
A technology of adjusting mechanism and Mach number, which is applied in the field of aerodynamic wind tunnel test, can solve the problems of poor aerodynamic performance, the adjustment sheet cannot be smoothly retracted, and the Mach number measurement blockage degree is large, so as to achieve good aerodynamic performance and blockage degree. small effect
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specific Embodiment approach 1
[0015] Specific implementation mode one: combine Figure 1 to Figure 3 Describe this embodiment, a Mach number adjustment mechanism suitable for a transsupersonic wind tunnel in this embodiment includes a main electric cylinder 1, an auxiliary adjustment mechanism 2, a main electric cylinder mounting seat 3, a joint bearing 5, a connecting seat 6, and a slide rail Slider 7, slide rail mounting seat 8, front tail extension plate 9, diamond-shaped adjustment piece 10 and rear tail extension plate 11, the front tail extension plate 9 and rear tail extension plate 11 are installed on the upper wall plate 13 of the second throat In the cavity formed by the lower wall plate 14 of the second throat, a diamond-shaped regulating piece 10 is hinged between the front tail extension plate 9 and the rear tail extension plate 11, and the diamond-shaped frame of the diamond-shaped regulating piece 10 is provided with an auxiliary adjustment mechanism 2 , the front tail extension plate 9 is f...
specific Embodiment approach 2
[0016] Specific implementation mode two: combination Figure 1 to Figure 3 Describe this embodiment, the diamond-shaped adjusting piece 10 described in a Mach number adjustment mechanism suitable for a trans-supersonic wind tunnel in this embodiment includes a first adjusting piece 16, a second adjusting piece 17, a third adjusting piece 18 and a fourth adjusting piece The adjustment piece 19, the first adjustment piece 16 and the second adjustment piece 17 are connected with the front tail extension plate 9 through a hinged manner, and the third adjustment piece 18 and the fourth adjustment piece 19 are connected with the rear tail extension plate through a hinged manner. The extension plate 11 establishes a connection, the first adjusting piece 16 is hinged with the third adjusting piece 18, the second adjusting piece 17 is hinged with the fourth adjusting piece 19, and the first adjusting piece 16 and the second adjusting piece 16 after the hinge connection are hinged. The ...
specific Embodiment approach 3
[0017] Specific implementation mode three: combination Figure 1 to Figure 3 Describe this embodiment, a Mach number adjustment mechanism suitable for transsupersonic wind tunnels according to this embodiment. The auxiliary adjustment mechanism 2 includes an auxiliary electric cylinder 15, an auxiliary electric cylinder mounting seat 4 and a push rod 12. The push rod The rod 12 is set in the frame formed by the diamond-shaped adjusting piece 10, and the push rod 12 completes the pushing action through the auxiliary electric cylinder 15 installed on the auxiliary electric cylinder mounting seat 4, and the auxiliary electric cylinder mounting seat 4 is fixedly installed on the second throat On the outer wall of the wall plate 13 and the lower wall plate 14 of the second throat. In this way, driven by the auxiliary electric cylinder 15, the diamond-shaped regulating piece 10 in the folded and flat state can be opened to a small angle to break the dead center position of the mecha...
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