Wind tunnel real frame for testing aviation high-precision mechanical parts

Abstract

The invention belongs to the technical field of aviation parts, in particular to a wind tunnel real frame for testing aviation high-precision mechanical parts, and provides the following scheme: the wind tunnel real frame comprises a wind tunnel main body frame, and a hollow circular plate is fixed below the wind tunnel main body frame; the wind tunnel real frame for aviation high-precision mechanical part testing is provided with a rotating plate and a movable rod, a first cylindrical gear plate and the rotating plate can be driven to rotate through starting of a first motor, and a clamping assembly can be rotated and adjusted through transmission of the first cylindrical gear plate; secondly, the rotation of a rotating plate can enable a movable rod to move, and the movement of the movable rod can enable a supporting column to slide up and down through a pull rod and a limiting groove, so that a clamping assembly can be driven to reciprocate up and down to simulate flight, and the situation that most of the wind tunnel solid frame is directly used for fixing an airplane model is avoided; and in addition, the height or the angle inclination cannot be adjusted in time according to requirements in the testing process.

Description

Technical Field

[0001] The present invention relates to the technical field of aviation parts, and in particular to a wind tunnel frame for testing aviation high-precision mechanical parts. Background Art

[0002] As aircraft develop towards high speed (such as supersonic and hypersonic aircraft), high ceiling and long range, their core mechanical components (such as engine blades, wing control mechanisms, landing gear components, etc.) need to withstand more complex aerodynamic loads, high temperature and high pressure environments and vibration shocks. For example, the leading edge components of the wings of hypersonic aircraft need to withstand aerodynamic heating of thousands of degrees Celsius during flight while maintaining structural stability, which places extremely high demands on the material properties, processing accuracy and aerodynamic compatibility of the components.

[0003] Most of the wind tunnel frames on the market are used directly to fix aircraft models and are not suitable for high-precision mechanical parts. In addition, the height or angle cannot be adjusted in time according to needs during the test.

[0004] Therefore, a wind tunnel frame is needed for testing aviation high-precision mechanical parts. Summary of the Invention

[0005] The present invention proposes a wind tunnel frame for testing high-precision aviation mechanical parts, which solves the problem that most wind tunnel frames in the prior art are directly used to fix aircraft models, are not suitable for high-precision mechanical parts, and cannot adjust the height or angle inclination in time according to needs during the test.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A wind tunnel frame for testing high-precision aviation mechanical parts, comprising a wind tunnel main frame, a hollow circular plate fixed below the wind tunnel main frame, a transparent window provided on the side wall of the wind tunnel main frame, a blowing assembly provided at one end of the wind tunnel main frame, an air outlet provided at the other end of the wind tunnel main frame, a lifting frame provided on the inner side of the wind tunnel main frame, a hollow outer shell provided at the top end of the lifting frame, an air diffusion pipe provided inside the wind tunnel main frame, and an illumination lamp provided on the lower surface of the inner top end of the lifting frame;

[0008] A first motor is fixed inside the hollow shell, a first rotating shaft is provided at the rotating end of the first motor, a first cylindrical gear plate is fixed to the outer wall of the first rotating shaft, a rotating plate is fixed to the other end of the first rotating shaft, a movable rod is provided on one side of the rotating plate, a first bearing is provided at the connection between the rotating plate and the movable rod, a second bearing is provided on the inner side of the other end of the movable rod, and a support column is provided on the inner side of the second bearing.

[0009] Preferably, a third bearing is provided on the periphery of the support column, a pulling rod is provided on the periphery of the third bearing, a limiting groove is provided on the outer side of the bottom end of the pulling rod, the upper side of the first cylindrical gear plate is meshed and connected with the second cylindrical gear plate, a telescopic rod is provided above the second cylindrical gear plate, a fourth bearing is provided on the periphery of the top end of the telescopic rod, a lifting bracket is provided on the periphery of the fourth bearing, a half-bevel gear is provided on the top of the telescopic rod, one side of the half-bevel gear is meshed and connected with the first bevel gear, and the other side of the half-bevel gear is meshed and connected with the second bevel gear.

[0010] Preferably, a support plate is fixed to the top of the support column, a fifth bearing is provided on the inner side of the top of the support plate, a hand handle is provided on the inner side of the fifth bearing, a threaded column is fixed to the end of the hand handle, the other end of the threaded column is fixed to the first connecting column, the outer periphery of the threaded column is threadedly connected to the threaded plate, the side wall of the threaded plate is fixed to the first slider, the outer side of the first slider is provided with a first slide rail, the other side of the threaded plate is provided with a movable plate, the connection between the threaded plate and the movable plate is provided with a second rotating shaft, the other end of the movable plate is provided with a clamping plate, the connection between the movable plate and the clamping plate is provided with a third rotating shaft, the interior of the hollow circular plate is fixed with a second motor, the second motor The rotating end is provided with a fourth rotating shaft, and the other end of the fourth rotating shaft is fixed with a first gear plate, the lower side of the first gear plate is meshed and connected with an annular rack plate, the lower wall of the annular rack plate is fixed with an annular slider, the outer side of the annular slider is provided with an annular slide rail, the other upper side of the annular rack plate is meshed and connected with the second gear plate, one end of the second gear plate is fixed with a second connecting column, the periphery of the second connecting column is provided with a sixth bearing, the other end of the second connecting column is fixed with a first adjusting plate, a second adjusting plate is provided on one side of the first adjusting plate, a fifth rotating shaft is provided at the connection between the first adjusting plate and the second adjusting plate, and a sixth rotating shaft is provided at the connection between the lifting frame and the second adjusting plate.

[0011] Preferably, the first cylindrical gear plate and the first rotating shaft form a rotating structure through the operation of the first motor, and the first rotating shaft and the rotating plate form a fixed structure, and the rotating plate forms a rotating structure through the first bearing and the movable rod, and the movable rod forms a rotating structure through the second bearing and the support column.

[0012] Preferably, the first cylindrical gear plate and the second cylindrical gear plate form a meshing structure, and the second cylindrical gear plate and the half bevel gear form a telescopic structure through the telescopic rod, and the half bevel gear and the first bevel gear form a meshing structure, and the half bevel gear and the second bevel gear form a meshing structure.

[0013] Preferably, the first bevel gear and the second bevel gear form a fixed structure through a support column, the support column and the pull rod form a rotating structure through a third bearing, and the pull rod and the limiting groove form a sliding structure.

[0014] Preferably, the hand-turning handle forms a rotating structure with the support plate through the fifth bearing, and the hand-turning handle forms a fixed structure with the first connecting column, and the threaded column and the threaded plate form a threaded connection, and the threaded plate forms a sliding structure with the first slider and the first slide rail.

[0015] Preferably, the threaded plate and the movable plate form a rotating structure through the second rotating shaft, and the movable plate and the clamping plate form a rotating structure through the third rotating shaft, and the clamping plate is provided with two groups symmetrically distributed about the center line of the first connecting column.

[0016] Preferably, the first gear plate and the fourth rotating shaft form a rotating structure through the operation of the second motor, and the first gear plate and the annular rack plate form an engaging structure, and the annular rack plate forms a sliding structure through the annular slider and the annular slide rail, and the annular rack plate and the second gear plate form an engaging structure.

[0017] Preferably, the second gear plate forms a fixed structure with the first adjustment plate through the second connecting column, and the first adjustment plate forms a rotating structure with the second adjustment plate through the fifth rotating shaft, and the second adjustment plate forms a rotating structure with the lifting frame through the sixth rotating shaft.

[0018] The present invention proposes a wind tunnel test frame for testing high-precision aviation mechanical parts. Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This wind tunnel frame for testing high-precision mechanical parts for aviation is equipped with a rotating plate and a movable rod. By turning on the first motor, the first cylindrical gear plate and the rotating plate can be driven to rotate. The transmission of the first cylindrical gear plate can make the clamping assembly rotate and adjust. Secondly, the rotation of the rotating plate can make the movable rod move. The movement of the movable rod can make the support column slide up and down through the pull rod and the limit slot, thereby driving the clamping assembly to move up and down to simulate flight. This avoids the problem that most wind tunnel frames are directly used to fix aircraft models and are not suitable for high-precision mechanical parts. In addition, during the test, the height or angle cannot be adjusted in time according to needs.

[0020] 2. The wind tunnel frame for testing high-precision aviation mechanical parts is equipped with a first bevel gear and a second bevel gear. Through the meshing structure of the first cylindrical gear plate and the second cylindrical gear plate, the rotation of the first cylindrical gear plate can cause the second cylindrical gear plate to rotate, indirectly driving the half bevel gear to rotate. Because the tooth block on the outer side of the half bevel gear is not a full circle, when one side of the tooth block is engaged with the first bevel gear or the second bevel gear, it will drive the first bevel gear to rotate forward or the second bevel gear to rotate reversely, respectively. Therefore, the same connecting column can rotate forward and backward under different structural meshing conditions, thereby realizing automatic reciprocating flipping of the clamping assembly and changing the angle;

[0021] 3. This wind tunnel test frame for high-precision aviation mechanical parts is equipped with a threaded column and a threaded plate. By turning the hand-turned handle with external force, the threaded column can be driven to rotate. Through the threaded connection between the threaded column and the threaded plate, the rotation of the threaded column can move the threaded plate, and the movement of the threaded plate can move the movable plate. The movement of the two sets of movable plates can drive the movement of the clamping plate. The relative movement of the two sets of clamping plates can form a clamping assembly, which is convenient for clamping and fixing parts, thereby facilitating the assembly and disassembly of parts.

[0022] 4. The wind tunnel frame for testing high-precision aviation mechanical parts is provided with a first gear plate and an annular rack plate. The operation of the second motor can drive the first gear plate to rotate. Through the meshing structure of the first gear plate and the annular rack plate, the rotation of the first gear plate can make the annular rack plate slide through the annular slider and the annular slide rail. Similarly, the sliding of the annular rack plate can rotate the second gear plate, and the rotation of the second gear plate can rotate the first adjustment plate. The rotation of the first adjustment plate can push the second adjustment plate to move, indirectly driving the lifting frame to move. The lifting of the lifting frame can facilitate the pushing out or retracting of mechanical parts for subsequent replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view schematic diagram of the wind tunnel frame for testing aviation high-precision mechanical parts proposed by the present invention;

[0024] Figure 2 This is a rear view schematic diagram of the wind tunnel frame for testing aviation high-precision mechanical parts proposed by the present invention;

[0025] Figure 3 This is a side view 1 structural diagram of a wind tunnel frame for testing aviation high-precision mechanical parts proposed by the present invention;

[0026] Figure 4 This is a side view 2 structural diagram of a wind tunnel frame for testing aviation high-precision mechanical parts proposed by the present invention;

[0027] Figure 5 This is a schematic diagram of the internal structure of a hollow circular plate of a wind tunnel frame for testing aviation high-precision mechanical parts proposed by the present invention;

[0028] Figure 6 This is a schematic diagram of the bottom-up structure of a wind tunnel frame for testing high-precision aviation mechanical parts proposed by the present invention;

[0029] Figure 7 This is a schematic cross-sectional view of a wind tunnel frame for testing high-precision aviation mechanical parts proposed by the present invention;

[0030] Figure 8 This is a schematic diagram of the cross-sectional structure of the support plate of a wind tunnel frame for testing aviation high-precision mechanical parts proposed by the present invention.

[0031] In the figure: 1. wind tunnel main frame; 2. hollow circular plate; 3. transparent window; 4. blowing assembly; 5. air outlet; 6. lifting frame; 7. hollow shell; 8. air diffuser; 9. lighting lamp; 10. first motor; 11. first rotating shaft; 12. first cylindrical gear plate; 13. rotating plate; 14. first bearing; 15. movable rod; 16. second bearing; 17. supporting column; 18. third bearing; 19. pulling rod; 20. limiting groove; 21. second cylindrical gear plate; 22. telescopic rod; 23. fourth bearing; 24. lifting bracket; 25. half-bevel gear; 26. first bevel gear; 27 , second bevel gear; 28, support plate; 29, fifth bearing; 30, hand handle; 31, threaded column; 32, first connecting column; 33, threaded plate; 34, first slider; 35, first slide rail; 36, second rotating shaft; 37, movable plate; 38, third rotating shaft; 39, clamping plate; 40, second motor; 41, fourth rotating shaft; 42, first gear plate; 43, annular rack plate; 44, annular slider; 45, annular slide rail; 46, second gear plate; 47, second connecting column; 48, sixth bearing; 49, first adjusting plate; 50, fifth rotating shaft; 51, second adjusting plate; 52, sixth rotating shaft. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-8The present invention provides a technical solution: a wind tunnel frame for testing high-precision aviation mechanical parts, comprising a wind tunnel main frame 1, a hollow circular plate 2 is fixed below the wind tunnel main frame 1, a transparent window 3 is provided on the side wall of the wind tunnel main frame 1, a blowing assembly 4 is provided at one end of the wind tunnel main frame 1, an air outlet 5 is provided at the other end of the wind tunnel main frame 1, a lifting frame 6 is provided on the inner side of the wind tunnel main frame 1, a hollow shell 7 is provided at the top of the lifting frame 6, an air diffusion pipe 8 is provided inside the wind tunnel main frame 1, and an illumination lamp 9 is provided on the lower surface of the inner top of the lifting frame 6;

[0034] A first motor 10 is fixed inside the hollow shell 7, and a first rotating shaft 11 is provided at the rotating end of the first motor 10. A first cylindrical gear plate 12 is fixed to the outer wall of the first rotating shaft 11, and a rotating plate 13 is fixed to the other end of the first rotating shaft 11. A movable rod 15 is provided on one side of the rotating plate 13, and a first bearing 14 is provided at the connection between the rotating plate 13 and the movable rod 15. A second bearing 16 is provided on the inner side of the other end of the movable rod 15, and a support column 17 is provided on the inner side of the second bearing 16. The fan is fanned by the blowing component 4 to inhale the gas containing smoke and blow it to the surface of the mechanical parts to observe the airflow pattern, etc. Secondly, it is easier to observe when illuminated by the colored light of the lighting lamp 9.

[0035] Furthermore, a third bearing 18 is provided on the periphery of the support column 17, a pull rod 19 is provided on the periphery of the third bearing 18, a limiting groove 20 is provided on the outer side of the bottom end of the pull rod 19, the upper side of the first cylindrical gear plate 12 is meshed and connected with the second cylindrical gear plate 21, a telescopic rod 22 is provided above the second cylindrical gear plate 21, a fourth bearing 23 is provided on the periphery of the top end of the telescopic rod 22, a lifting bracket 24 is provided on the periphery of the fourth bearing 23, a half-bevel gear 25 is provided on the top of the telescopic rod 22, one side of the half-bevel gear 25 is meshed and connected with the first bevel gear 26, and the other side of the half-bevel gear 25 is meshed and connected with the second bevel gear 27.

[0036] Furthermore, a support plate 28 is fixed to the top of the support column 17, a fifth bearing 29 is provided on the inner side of the top of the support plate 28, a hand handle 30 is provided on the inner side of the fifth bearing 29, a threaded column 31 is fixed to the end of the hand handle 30, a first connecting column 32 is fixed to the other end of the threaded column 31, a threaded plate 33 is connected to the outer periphery of the threaded column 31, a first slider 34 is fixed to the side wall of the threaded plate 33, a first slide rail 35 is provided on the outer side of the first slider 34, a movable plate 37 is provided on the other side of the threaded plate 33, a second rotating shaft 36 is provided at the connection between the threaded plate 33 and the movable plate 37, a clamping plate 39 is provided at the other end of the movable plate 37, a third rotating shaft 38 is provided at the connection between the movable plate 37 and the clamping plate 39, a second motor 40 is fixed to the inside of the hollow circular plate 2, and the second motor 4 0 is provided with a fourth rotating shaft 41 at the rotating end of the gear plate 40, and a first gear plate 42 is fixed to the other end of the fourth rotating shaft 41. The lower side of the first gear plate 42 is meshedly connected with an annular rack plate 43, and an annular slider 44 is fixed to the lower wall of the annular rack plate 43. An annular slide rail 45 is provided on the outer side of the annular slider 44, and the other upper side of the annular rack plate 43 is meshedly connected with a second gear plate 46. A second connecting column 47 is fixed to one end of the second gear plate 46, and a sixth bearing 48 is provided on the periphery of the second connecting column 47. A first adjusting plate 49 is fixed to the other end of the second connecting column 47. A second adjusting plate 51 is provided on one side of the first adjusting plate 49. A fifth rotating shaft 50 is provided at the connection between the first adjusting plate 49 and the second adjusting plate 51, and a sixth rotating shaft 52 is provided at the connection between the lifting frame 6 and the second adjusting plate 51.

[0037] Furthermore, the first cylindrical gear plate 12 and the first rotating shaft 11 form a rotating structure through the operation of the first motor 10, and the first rotating shaft 11 and the rotating plate 13 form a fixed structure, and the rotating plate 13 forms a rotating structure through the first bearing 14 and the movable rod 15, and the movable rod 15 forms a rotating structure through the second bearing 16 and the support column 17. By turning on the first motor 10, the first cylindrical gear plate 12 and the rotating plate 13 can be driven to rotate, and the transmission of the first cylindrical gear plate 12 can make the clamping assembly rotate and adjust. Secondly, the rotation of the rotating plate 13 can make the movable rod 15 movable, and the movement of the movable rod 15 can make the support column 17 slide up and down through the pull rod 19 and the limit slot 20, thereby driving the clamping assembly to move back and forth up and down to simulate flight.

[0038] Furthermore, the first cylindrical gear plate 12 and the second cylindrical gear plate 21 form a meshing structure, and the second cylindrical gear plate 21 forms a telescopic structure with the half bevel gear 25 through the telescopic rod 22, and the half bevel gear 25 forms a meshing structure with the first bevel gear 26, and the half bevel gear 25 forms a meshing structure with the second bevel gear 27. Through the meshing structure of the first cylindrical gear plate 12 and the second cylindrical gear plate 21, the rotation of the first cylindrical gear plate 12 can cause the second cylindrical gear plate 21 to rotate, indirectly driving the half bevel gear 25 to rotate. Since the tooth block on the outer side of the half bevel gear 25 is not a full circle, when one side of the tooth block is respectively engaged with the first bevel gear 26 or the second bevel gear 27, it will drive the first bevel gear 26 to rotate forward or the second bevel gear 27 to rotate reversely, thereby realizing the forward and reverse rotation of the same connecting column under different structural meshing conditions, thereby realizing automatic reciprocating flipping of the clamping assembly and changing the angle.

[0039] Furthermore, the first bevel gear 26 forms a fixed structure with the second bevel gear 27 through the support column 17, and the support column 17 forms a rotating structure with the pull rod 19 through the third bearing 18, and the pull rod 19 and the limit groove 20 form a sliding structure. The sliding structure of the pull rod 19 and the limit groove 20 can make the support column 17 have a certain stability during the lifting and lowering process.

[0040] Furthermore, the hand-turning handle 30 forms a rotating structure with the support plate 28 through the fifth bearing 29, and the hand-turning handle 30 forms a fixed structure with the first connecting column 32 through the threaded column 31, and the threaded column 31 and the threaded plate 33 form a threaded connection, and the threaded plate 33 forms a sliding structure with the first slider 34 and the first slide rail 35. By rotating the hand-turning handle 30 by external force, the threaded column 31 can be driven to rotate. Through the threaded connection between the threaded column 31 and the threaded plate 33, the rotation of the threaded column 31 can make the threaded plate 33 move, and the movement of the threaded plate 33 can make the movable plate 37 move.

[0041] Furthermore, the threaded plate 33 forms a rotating structure with the movable plate 37 through the second rotating shaft 36, and the movable plate 37 forms a rotating structure with the clamping plate 39 through the third rotating shaft 38, and the clamping plate 39 is provided with two groups symmetrically distributed about the center line of the first connecting column 32. The movement of the two groups of movable plates 37 can drive the clamping plate 39 to move, and the relative movement of the two groups of clamping plates 39 can form a clamping assembly, which is convenient for clamping and fixing parts, thereby facilitating the disassembly and assembly of parts.

[0042] Furthermore, the first gear plate 42 and the fourth rotating shaft 41 form a rotating structure through the operation of the second motor 40, and the first gear plate 42 and the annular rack plate 43 form an engaging structure, and the annular rack plate 43 forms a sliding structure with the annular slide block 44 and the annular slide rail 45, and the annular rack plate 43 and the second gear plate 46 form an engaging structure. Through the operation of the second motor 40, the first gear plate 42 can be driven to rotate. Through the engaging structure of the first gear plate 42 and the annular rack plate 43, the rotation of the first gear plate 42 can make the annular rack plate 43 slide with the annular slide rail 45 through the annular slide block 44. Similarly, the sliding of the annular rack plate 43 can make the second gear plate 46 rotate.

[0043] Furthermore, the second gear plate 46 forms a fixed structure with the first adjustment plate 49 through the second connecting column 47, and the first adjustment plate 49 forms a rotating structure with the second adjustment plate 51 through the fifth rotating shaft 50, and the second adjustment plate 51 forms a rotating structure with the lifting frame 6 through the sixth rotating shaft 52. The rotation of the second gear plate 46 can cause the first adjustment plate 49 to rotate, and the rotation of the first adjustment plate 49 can push the second adjustment plate 51 to move, thereby indirectly driving the lifting frame 6 to move up and down. The lifting of the lifting frame 6 can facilitate the pushing out or retracting of mechanical parts for subsequent replacement.

[0044] Working principle: First, the staff needs to operate the second motor 40 to drive the first gear plate 42 to rotate. The rotation of the first gear plate 42 can make the annular rack plate 43 slide through the annular slider 44 and the annular slide rail 45. Similarly, the sliding of the annular rack plate 43 can make the second gear plate 46 rotate. The rotation of the second gear plate 46 can make the first adjustment plate 49 rotate. The rotation of the first adjustment plate 49 can push the second adjustment plate 51 to move, indirectly driving the lifting frame 6 to lift. The lifting of the lifting frame 6 can facilitate the push-out of mechanical parts. Then, the hand-turned handle 30 is rotated by external force, which can drive the threaded column 31 to rotate. The rotation of the threaded column 31 can make the threaded plate 33 move, and the threaded plate 3 3 can make the movable plate 37 move, and the movement of the two sets of movable plates 37 can drive the clamping plate 39 to move. The relative movement of the two sets of clamping plates 39 can form a clamping assembly, which is convenient for clamping and fixing parts, thereby facilitating the installation of parts. Then the lifting frame 6 is retracted, and the first motor 10 is turned on to drive the first cylindrical gear plate 12 and the rotating plate 13 to rotate. The transmission of the first cylindrical gear plate 12 can make the clamping assembly rotate and adjust. Secondly, the rotation of the rotating plate 13 can make the movable rod 15 move, and the movement of the movable rod 15 can make the support column 17 slide up and down through the pull rod 19 and the limit slot 20, thereby driving the clamping assembly to move back and forth up and down, simulating flight and conducting tests.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A wind tunnel frame for testing high-precision aviation mechanical parts, comprising a wind tunnel main frame (1), characterized in that: A hollow circular plate (2) is fixed below the wind tunnel main frame (1), a transparent window (3) is provided on the side wall of the wind tunnel main frame (1), a blowing assembly (4) is provided at one end of the wind tunnel main frame (1), an air outlet port (5) is provided at the other end of the wind tunnel main frame (1), a lifting frame (6) is provided on the inner side of the wind tunnel main frame (1), a hollow shell (7) is provided at the top end of the lifting frame (6), an air diffusion pipe (8) is provided inside the wind tunnel main frame (1), and a lighting lamp (9) is provided on the lower surface of the inner top end of the lifting frame (6); A first motor (10) is fixed inside the hollow shell (7), a first rotating shaft (11) is provided at the rotating end of the first motor (10), a first cylindrical gear plate (12) is fixed to the outer wall of the first rotating shaft (11), a rotating plate (13) is fixed to the other end of the first rotating shaft (11), a movable rod (15) is provided on one side of the rotating plate (13), a first bearing (14) is provided at the connection between the rotating plate (13) and the movable rod (15), a second bearing (16) is provided on the inner side of the other end of the movable rod (15), and a support column (17) is provided on the inner side of the second bearing (16).

2. The wind tunnel test frame for testing aviation high-precision mechanical parts according to claim 1, characterized in that: A third bearing (18) is provided on the periphery of the support column (17), a pull rod (19) is provided on the periphery of the third bearing (18), a limiting groove (20) is provided on the outer side of the bottom end of the pull rod (19), the upper side of the first cylindrical gear plate (12) is meshedly connected with the second cylindrical gear plate (21), a telescopic rod (22) is provided above the second cylindrical gear plate (21), a fourth bearing (23) is provided on the periphery of the top end of the telescopic rod (22), a lifting bracket (24) is provided on the periphery of the fourth bearing (23), a half-bevel gear (25) is provided on the top end of the telescopic rod (22), one side of the half-bevel gear (25) is meshedly connected with the first bevel gear (26), and the other side of the half-bevel gear (25) is meshedly connected with the second bevel gear (27).

3. The wind tunnel test frame for testing high-precision aviation mechanical parts according to claim 1, characterized in that: A support plate (28) is fixed to the top of the support column (17), a fifth bearing (29) is provided on the inner side of the top of the support plate (28), a hand-turning handle (30) is provided on the inner side of the fifth bearing (29), a threaded column (31) is fixed to the end of the hand-turning handle (30), a first connecting column (32) is fixed to the other end of the threaded column (31), a threaded plate (33) is connected to the outer periphery of the threaded column (31), and a first sliding block (34) is fixed to the side wall of the threaded plate (33). ), a first slide rail (35) is provided on the outer side of the first slider (34), a movable plate (37) is provided on the other side of the threaded plate (33), a second rotating shaft (36) is provided at the connection between the threaded plate (33) and the movable plate (37), a clamping plate (39) is provided at the other end of the movable plate (37), a third rotating shaft (38) is provided at the connection between the movable plate (37) and the clamping plate (39), a second motor (40) is fixed inside the hollow circular plate (2), and the second motor The rotating end of the machine (40) is provided with a fourth rotating shaft (41), the other end of the fourth rotating shaft (41) is fixed with a first gear plate (42), the lower side of the first gear plate (42) is meshed with an annular rack plate (43), the lower wall of the annular rack plate (43) is fixed with an annular slider (44), the outer side of the annular slider (44) is provided with an annular slide rail (45), the other upper side of the annular rack plate (43) is meshed with a second gear plate (46), the second gear plate (46) is fixed with an annular slide rail (45), and the second gear plate (46) is fixed with an annular slide rail (45). ) is fixed with a second connecting column (47) at one end, a sixth bearing (48) is provided on the periphery of the second connecting column (47), a first adjusting plate (49) is fixed to the other end of the second connecting column (47), a second adjusting plate (51) is provided on one side of the first adjusting plate (49), a fifth rotating shaft (50) is provided at the connection between the first adjusting plate (49) and the second adjusting plate (51), and a sixth rotating shaft (52) is provided at the connection between the lifting frame (6) and the second adjusting plate (51).

4. The wind tunnel test frame for testing high-precision aviation mechanical parts according to claim 1, characterized in that: The first cylindrical gear plate (12) and the first rotating shaft (11) form a rotating structure through the operation of the first motor (10), and the first rotating shaft (11) and the rotating plate (13) form a fixed structure, and the rotating plate (13) forms a rotating structure through the first bearing (14) and the movable rod (15), and the movable rod (15) forms a rotating structure through the second bearing (16) and the support column (17).

5. The wind tunnel test frame for testing high-precision aviation mechanical parts according to claim 1, characterized in that: The first cylindrical gear plate (12) and the second cylindrical gear plate (21) form a meshing structure, and the second cylindrical gear plate (21) forms a telescopic structure with the half-bevel gear (25) through the telescopic rod (22), and the half-bevel gear (25) and the first bevel gear (26) form a meshing structure, and the half-bevel gear (25) and the second bevel gear (27) form a meshing structure.

6. The wind tunnel test frame for testing high-precision aviation mechanical parts according to claim 2, characterized in that: The first bevel gear (26) forms a fixed structure with the second bevel gear (27) through the support column (17), and the support column (17) forms a rotating structure with the pull rod (19) through the third bearing (18), and the pull rod (19) and the limiting groove (20) form a sliding structure.

7. The wind tunnel test frame for testing high-precision aviation mechanical parts according to claim 3, characterized in that: The hand-turning handle (30) forms a rotating structure with the support plate (28) through the fifth bearing (29), and the hand-turning handle (30) forms a fixed structure with the first connecting column (32) through the threaded column (31), and the threaded column (31) and the threaded plate (33) form a threaded connection, and the threaded plate (33) forms a sliding structure with the first sliding rail (35) through the first sliding block (34).

8. The wind tunnel test frame for testing aviation high-precision mechanical parts according to claim 3, characterized in that: The threaded plate (33) forms a rotating structure with the movable plate (37) through the second rotating shaft (36), and the movable plate (37) forms a rotating structure with the clamping plate (39) through the third rotating shaft (38), and the clamping plate (39) is provided with two groups symmetrically distributed about the center line of the first connecting column (32).

9. The wind tunnel test frame for testing aviation high-precision mechanical parts according to claim 3, characterized in that: The first gear plate (42) and the fourth rotating shaft (41) form a rotating structure through the operation of the second motor (40), and the first gear plate (42) and the annular rack plate (43) form an engaging structure, and the annular rack plate (43) forms a sliding structure through the annular slider (44) and the annular slide rail (45), and the annular rack plate (43) and the second gear plate (46) form an engaging structure.

10. The wind tunnel test frame for testing aviation high-precision mechanical parts according to claim 3, characterized in that: The second gear plate (46) forms a fixed structure with the first adjustment plate (49) through the second connecting column (47), and the first adjustment plate (49) forms a rotating structure with the second adjustment plate (51) through the fifth rotating shaft (50), and the second adjustment plate (51) forms a rotating structure with the lifting frame (6) through the sixth rotating shaft (52).

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