Airplane wing wind resistance performance detection device

Abstract

The utility model provides an aircraft wing wind resistance performance detection device, and belongs to the technical field of aircraft research and development. The device is simple in structure, adjustable in size, good in adaptation effect and good in wind resistance detection effect. A guide rail of the device is fixedly laid on the ground, one end of the guide rail is fixedly connected with a fixed fan set, a shifting seat sliding frame is placed on the guide rail, a simulation machine body is erected on a shifting seat, and a connecting assembly is detachably and fixedly hung on the simulation machine body. The wings are detachably installed on the connecting assemblies to bear airflow blown out by the fixed fan sets to execute wind resistance detection, and the extension fan sets are connected to the sides of the fixed fan sets according to needs and used for being matched with the lengths of the wings. According to the device, the fan set is arranged in a modular splicing mode, adaptive adjustment can be carried out according to requirements, the adaptation degree is high, assembling is convenient, the connecting flange pieces matched with different wing models are arranged on the connecting assemblies of the device, replacement can be carried out according to different detected wings, and the universality of device detection is high.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft research and development technology, and in particular relates to a device for testing the wind resistance performance of aircraft wings. Background Technology

[0002] During the research and development and production of aircraft, it is necessary to conduct performance tests on components that have undergone design improvements. When testing the wind resistance performance of aircraft wings, since the wing structures of different aircraft models are different, the wings need to be connected to different aircraft bodies for testing. Because the testing equipment is quite expensive and it is inconvenient to set up multiple testing chambers, it is necessary to cyclically change the aircraft bodies in the testing chambers when testing the performance of different wings. This process is time-consuming and labor-intensive, making the testing difficult. Therefore, there is a need for equipment that can simplify the wing performance testing process to meet the testing needs of aircraft research and development. Utility Model Content

[0003] To address the problems existing in the background art, this utility model provides an aircraft wing wind resistance performance testing device. The device has a simple structure, adjustable size, and can be adapted to various types and sizes of wings, with good adaptation effect and good wind resistance performance testing effect.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an aircraft wing wind resistance performance testing device, including a fixed fan unit, a guide rail, a shift seat, a simulated fuselage and a connecting component. The guide rail is fixedly laid on the ground, and one end of the guide rail is fixedly connected to the shell of the air outlet side of the fixed fan unit. The shift seat slides on the guide rail. The shift seat is L-shaped. The simulated fuselage is mounted on the shift seat. The side wall of the simulated fuselage is fixedly connected to a horizontally fixed crossbeam on the upright plate of the shift seat. The bottom surface of the simulated fuselage is fixedly connected to a vertically fixed support column on the bottom plate of the shift seat. The connecting component is detachably and fixedly hung on the simulated fuselage. The wing is detachably mounted on the connecting component to withstand the airflow blown from the fixed fan unit to perform wind resistance performance testing.

[0005] A guide groove is formed on the bottom surface of the base plate of the shifting seat. The guide groove is fastened to the guide rail. A fabric groove is formed on the lower surface of the base plate of the shifting seat to avoid the guide groove. A walking component is installed in the fabric groove. The walking component supports the shifting seat to adjust its position along the guide rail.

[0006] The walking assembly includes a hydraulic rod, a lifting plate, and walking wheels. The upper base end of the hydraulic rod is fixedly connected to the bottom of the fabric trough, and the vertically pointing telescopic end of the hydraulic rod is fixedly connected to the lifting plate. Multiple walking wheels are rotatably mounted on the lifting plate.

[0007] The connecting assembly includes a mounting plate, a connecting flange, two lugs, and multiple fixing bolts. A mounting groove is provided in the middle section of the simulator body. The mounting plate hooks onto the mounting groove. The mounting plate is concave with its opening facing downwards. One side of the mounting plate has a long plate, and the other side has a short plate. The long and short plates are connected by a horizontal plate. The mounting groove is shallow where it mates with the short plate, and deep where it mates with the long plate. The shallow and deep grooves are connected by a horizontal groove. The short plate of the mounting plate is inserted into the shallow groove, the long plate into the deep groove, and the horizontal plate into the horizontal groove. Lugs protrude from both ends of the horizontal plate of the mounting plate. A flat-fitting groove is provided on the simulator body corresponding to the lugs. The lugs are inserted into the flat-fitting groove and detachably fixed by multiple fixing bolts. The connecting flange is fixedly installed on the outer surface of the long plate away from the short plate. The wing is detachably fixedly installed on the connecting flange.

[0008] The aircraft wing wind resistance performance testing device also includes an extended fan unit. The extended fan unit is detachably and fixedly installed on the side wall of the fixed fan unit. The air outlet side of the extended fan unit and the air outlet side of the fixed fan unit are located on the same side. The extended fan unit has a second ear plate protruding from the side facade on the top surface of its shell. The fixed fan unit has a second flat groove on the top surface of its shell to fit the second ear plate. The second ear plate is inserted into the second flat groove and screwed with multiple second fixing bolts, thus completing the detachable and fixed connection between the extended fan unit and the fixed fan unit.

[0009] On the top surface of the extended fan unit, a flat groove 2 is also opened on the side away from the ear plate 2. Multiple extended fan units are spliced ​​together by matching ear plates 2 and flat groove 2, and are detachably fixed by fixing bolts 2.

[0010] The beneficial effects of this utility model are as follows: The fan unit of the device is set up in a modular splicing form, which can be adapted and adjusted according to the size of different airfoils being tested, with high adaptability and convenient assembly; the connecting components of the device are equipped with connecting flanges adapted to different airfoil models, which can be replaced according to different airfoils being tested, thereby improving the wide range of testing capabilities of the device; the shifting seat of the device can move along the guide rail to simulate different situations to meet testing requirements. Attached Figure Description

[0011] In the attached diagram:

[0012] Figure 1 This is a schematic diagram illustrating the overall application effect of this utility model;

[0013] Figure 2 This is a schematic diagram of the connection relationship between the various components of this utility model (the wings are omitted in the diagram);

[0014] Figure 3 yes Figure 2 Enlarged view of part A in the middle;

[0015] Figure 4 yes Figure 2 Enlarged view of part B in the middle;

[0016] Figure 5 This is a schematic diagram of the working principle of the displacement seat of this utility model (the wings are hidden in the figure);

[0017] Figure 6 This is a schematic diagram of the bottom structure of the shift seat of this utility model;

[0018] In the diagram: 1. Fixed fan unit; 2. Guide rail; 3. Shifting seat; 4. Simulated fuselage; 5. Connecting assembly; 6. Extended fan unit; 7. Wing; 31. Crossbeam; 32. Support column; 33. Hydraulic rod; 34. Lifting plate; 35. Traveling wheel; 36. Guide groove; 37. Fabric loading groove; 41. Hanging groove; 42. Flat embedding groove one; 51. Hanging plate; 52. Connecting flange; 53. Ear plate one; 54. Fixing bolt one; 61. Ear plate two; 62. Flat embedding groove two; 63. Fixing bolt two. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] An aircraft wing wind resistance performance testing device includes a fixed fan unit 1, a guide rail 2, a displacement seat 3, a simulated fuselage 4, and a connecting assembly 5. The guide rail 2 is fixedly laid on the ground, and one end of the guide rail 2 is fixedly connected to the air outlet side shell of the fixed fan unit 1. The displacement seat 3 is placed on the guide rail 2 and can slide along the guide rail 2 to move closer to or away from the fixed fan unit 1. The displacement seat 3 is L-shaped. The simulated fuselage 4 is mounted on the displacement seat 3. The side wall of the simulated fuselage 4 is fixedly connected to a horizontally fixed crossbeam 31 on the vertical plate of the displacement seat 3. The bottom surface of the simulated fuselage 4 is fixedly connected to a vertically fixed support column 32 on the bottom plate of the displacement seat 3. The connecting assembly 5 is detachably and fixedly hung on the simulated fuselage 4. The wing 7 is detachably mounted on the connecting assembly 5 to withstand the airflow blown from the fixed fan unit 1 and perform wind resistance performance testing.

[0021] A guide groove 36 is provided on the bottom surface of the base plate of the shifting seat 3. The guide groove 36 is fastened to the guide rail 2. A fabric groove 37 is provided on the lower surface of the base plate of the shifting seat 3 to avoid the guide groove 36. A walking component is installed in the fabric groove 37. The walking component supports the shifting seat 3 to adjust its position along the guide rail 2.

[0022] The walking assembly includes a hydraulic rod 33, a lifting plate 34, and walking wheels 35. The upper base end of the hydraulic rod 33 is fixedly connected to the bottom of the fabric groove 37. The vertically pointing telescopic end of the hydraulic rod 33 is fixedly connected to the lifting plate 34. Multiple walking wheels 35 are rotatably mounted on the lifting plate 34. The walking wheels 35 abut against the ground. When the telescopic end of the hydraulic rod 33 extends, it pushes the entire displacement seat 3 upward, causing the bottom surface of the displacement seat 3 to lift off the ground. The walking wheels are driven by a drive motor embedded in the lifting plate 34 to rotate, thereby realizing the position movement of the displacement seat 3 along the guide rail 2. When the drive motor stops running, the walking wheels 35 stop rotating, the telescopic end of the hydraulic rod 33 retracts, that is, the displacement seat 3 descends, the bottom surface of the displacement seat 3 touches the ground, and the displacement seat 3 comes to a stable stop.

[0023] The connecting assembly 5 includes a mounting plate 51, a connecting flange 52, two ear plates 53, and multiple fixing bolts 54. A mounting groove 41 is provided in the middle section of the simulator body 4. The mounting plate 51 is hooked onto the mounting groove 41. The mounting plate 51 is concave with its opening facing downwards. One side of the mounting plate 51 has a long plate, and the other side has a short plate. The long and short plates are connected by a horizontal plate. The mounting groove 41 is shallow when it mates with the short plate, and is located in the middle of the simulator body 4 in the width direction. The mounting groove 41 is deep when it mates with the long plate, and is located on the side of the simulator body 4 away from the horizontal tie beam 31. The deep groove extends through the upper and lower end faces of the simulator body 4. The groove and the deep groove are connected by a horizontal groove. The short plate of the mounting plate 51 is inserted into the shallow groove, the long plate is inserted into the deep groove, and the horizontal plate is fitted into the horizontal groove. Both ends of the horizontal plate of the mounting plate 51 are provided with ear plates 53. The simulated fuselage 4 has a flat groove 42 corresponding to the ear plate 53. The ear plate 53 is inserted into the flat groove 42 and is detachably fixed by multiple fixing bolts 54. The connecting flange 52 is fixedly set on the outer surface of the long plate away from the short plate. The wing 7 is detachably fixedly connected to the connecting flange 52. The connecting flange 52 is set according to the shape of the connecting end of the wing 7 to be tested for wind resistance.

[0024] The aircraft wing wind resistance performance testing device also includes an extended fan unit 6, which is detachably and fixedly installed on the side wall of the fixed fan unit 1. The air outlet side of the extended fan unit 6 and the air outlet side of the fixed fan unit 1 are located on the same side. The top surface of the shell of the extended fan unit 6 is provided with ear plates 61 protruding from the side facade. The top surface of the shell of the fixed fan unit 1 is provided with a flat groove 62 to fit the ear plates 61. The ear plates 61 are inserted into the flat groove 62 and multiple fixing bolts 63 are screwed on, thus completing the detachable fixed connection between the extended fan unit 6 and the fixed fan unit 1.

[0025] The extended fan unit 6 has a flat groove 62 on the top surface of its shell away from the ear plate 61. Multiple extended fan units 6 are spliced ​​together by the matching ear plate 61 and the flat groove 62, and are detachably fixed by the fixing bolt 63. The number of extended fan units 6 is determined according to the length of the wing 7 being tested. The air outlet formed by the fixed fan unit 1 and multiple extended fan units 6 covers the entire length of the wing 7.

[0026] The operating power of both the fixed fan unit 1 and the extended fan unit 6 is adjustable, which allows for the adjustment of airflow speed to simulate real flight conditions.

[0027] Working principle: When testing the wind resistance performance of the wing 7, according to the model of the wing 7 to be tested, a connecting assembly 5 equipped with a connecting flange 52 of the same model is selected, and the connecting assembly 5 is stably installed on the simulated fuselage 4. Then, the wing 7 to be tested is connected and installed on the connecting flange 52. According to the length of the wing 7 to be tested, the number of extended fan units 6 is adjusted accordingly so that the air outlet formed by the fixed fan unit 1 and the extended fan unit 6 can cover the entire length of the wing 7.

[0028] During testing, start the fixed fan unit 1 and the extended fan unit 6, adjust the airflow velocity to the experimental value, and then perform the test. During the test, the position of the shift seat 3 can be adjusted according to the specific simulation requirements. To adjust the position, extend the hydraulic rod 33 to raise the shift seat 3, then start the drive motor to move the shift seat 3 closer to or away from the fixed fan unit 1. Once the position movement is complete, adjust the hydraulic rod 33 to retract, allowing the shift seat 3 to land.

[0029] When inspecting different wings 7, simply replace the connecting assembly 5 with the connecting flange 52 that is of the appropriate size and model.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for testing the wind resistance performance of an aircraft wing, characterized in that: The device includes a fixed fan unit (1), a guide rail (2), a shift seat (3), a simulated fuselage (4), and a connecting component (5). The guide rail (2) is fixedly laid on the ground, and one end of the guide rail (2) is fixedly connected to the shell of the air outlet side of the fixed fan unit (1). The shift seat (3) slides on the guide rail (2) and is L-shaped. The simulated fuselage (4) is mounted on the shift seat (3). The side wall of the simulated fuselage (4) is fixedly connected to the horizontally fixed horizontal tie beam (31) on the upright plate of the shift seat (3). The bottom surface of the simulated fuselage (4) is fixedly connected to the vertically fixed support column (32) on the bottom plate of the shift seat (3). The connecting component (5) is detachably and fixedly hung on the simulated fuselage (4). The wing (7) is detachably mounted on the connecting component (5) to withstand the airflow blown out by the fixed fan unit (1) and perform wind resistance performance testing.

2. The aircraft wing wind resistance performance testing device according to claim 1, characterized in that: A guide groove (36) is provided on the bottom surface of the base plate of the shifting seat (3). The guide groove (36) is fastened to the guide rail (2). A fabric groove (37) is provided on the lower surface of the base plate of the shifting seat (3) to avoid the guide groove (36). A walking component is installed in the fabric groove (37). The walking component supports the shifting seat (3) to adjust its position along the guide rail (2).

3. The aircraft wing wind resistance performance testing device according to claim 2, characterized in that: The walking assembly includes a hydraulic rod (33), a lifting plate (34), and walking wheels (35). The base end of the upper end of the hydraulic rod (33) is fixedly connected to the bottom of the fabric groove (37). The telescopic end of the hydraulic rod (33) pointing vertically downward is fixedly connected to the lifting plate (34). Multiple walking wheels (35) are rotatably installed on the lifting plate (34).

4. The aircraft wing wind resistance performance testing device according to claim 2, characterized in that: The connecting assembly (5) includes a mounting plate (51), a connecting flange (52), two ear plates (53), and multiple fixing bolts (54). A mounting groove (41) is provided in the middle section of the simulator body (4). The mounting plate (51) is hooked onto the mounting groove (41). The mounting plate (51) is concave with its opening facing downwards. One side of the mounting plate (51) is a long plate, and the other side is a short plate. The long plate and the short plate are connected by a horizontal plate. The mounting groove (41) is set as a shallow groove where it meets the short plate, and as a deep groove where it meets the long plate. The shallow groove and the deep groove are connected by a horizontal groove. The short plate of the mounting plate (51) is inserted into the shallow groove, the long plate is inserted into the deep groove, and the horizontal plate is fitted into the horizontal groove. Both ends of the horizontal plate of the mounting plate (51) are provided with ear plates (53). The simulated fuselage (4) is provided with a flat groove (42) corresponding to the ear plate (53). The ear plate (53) is inserted into the flat groove (42) and is detachably fixed by multiple fixing bolts (54). The connecting flange (52) is fixedly installed on the outer surface of the long plate away from the short plate. The wing (7) is detachably fixedly installed on the connecting flange (52).

5. The aircraft wing wind resistance performance testing device according to claim 1 or 4, characterized in that: The aircraft wing wind resistance performance testing device also includes an extended fan unit (6), which is detachably and fixedly installed on the side wall of the fixed fan unit (1). The air outlet side of the extended fan unit (6) and the air outlet side of the fixed fan unit (1) are located on the same side. The extended fan unit (6) has a second ear plate (61) protruding from the side facade on the top surface of the shell. The fixed fan unit (1) has a second flat groove (62) on the top surface of the shell that matches the second ear plate (61). The second ear plate (61) is inserted into the second flat groove (62) and screwed with multiple second fixing bolts (63), thus completing the detachable fixed connection between the extended fan unit (6) and the fixed fan unit (1).

6. The aircraft wing wind resistance performance testing device according to claim 5, characterized in that: On the top surface of the extended fan unit (6) away from the ear plate two (61), a flat groove two (62) is also opened. Multiple extended fan units (6) are spliced ​​together by the matching ear plate two (61) and the flat groove two (62), and are detachably fixed by the fixing bolt two (63).

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