Installation method of aircraft ground test run guide wall

Abstract

According to the installation method of the aircraft ground test run guide walls, after the first frame body is placed on a test run field, the first frame body is supported by opening the supporting device, then the first placed guide wall serves as a reference datum, and other guide walls are aligned along the reference datum line to be spliced; the spliced adjacent flow guide walls are fixed through the locking assemblies to form a whole for gas flow guide, after gas flow guide is completed, the second frame body is driven by the turnover device to turn over to the position above the first frame body, meanwhile, the supporting devices are folded, and the adjacent flow guide walls are fixed through the locking assemblies after being symmetrically arranged relative to the datum line. In this way, the two guide wall structures are connected into a whole, the overall structure is more compact, due to the fact that the guide wall structures are symmetrically arranged, overall stress is even in the hoisting and conveying process, and the problems that due to the fact that the structures cannot be turned over, the overall structure is uneven in stress, hoisting and conveying are inconvenient, and time and labor are wasted are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of ground equipment technology associated with aircraft, and more specifically to a method for installing a deflector wall for aircraft ground testing. Background Technology

[0002] Ground testing of aircraft engines is a crucial step in aircraft engine maintenance and troubleshooting. During the test, the interoperability of the engine with fuel, hydraulic, and electrical systems is checked to ensure that all components work together properly, thus verifying system synergy. Simulated flight conditions are used to test parameters such as engine thrust, speed, and oil pressure to verify whether its performance meets design standards. During this process, the high-temperature, high-speed exhaust gas emitted by the aircraft engine under high-thrust testing conditions threatens the safety of ground personnel and vehicles. Therefore, it is necessary to guide the high-temperature, high-speed exhaust gas.

[0003] For example, Chinese patent application number 202121899538.2, classification number B64F5 / 60, and publication date of February 8, 2022, discloses a noise reduction structure for a guide wall used in aircraft ground testing, which relates to the field of aviation equipment technology. The structure includes a guide wall, on one side of which multiple sets of guide walls are evenly arranged, and on the top of the other side of which a support plate is provided. A generator is installed on the top of the support plate, and side mounting plates are provided on both sides of the top of the support plate. A rotating shaft is provided between the two sets of side mounting plates.

[0004] The aforementioned literature utilizes the function of a guide wall to guide exhaust gas into the inner side of the blade assembly and drive the blade assembly to rotate, causing the shaft to rotate. Simultaneously, under the action of the transmission mechanism, the generator works to generate electricity, thereby increasing the utilization rate of high-temperature and high-speed exhaust gas. However, the entire structure of the guide wall is fixed on the supporting truss, and the guide wall is transported to the test site by a transport vehicle before use and also needs to be removed from the test site after use. As the overall structure is large, it is inconvenient to load and transport the guide wall, and it is time-consuming and labor-intensive. Summary of the Invention

[0005] The purpose of this invention is to provide an installation method for an aircraft ground test deflector wall. By folding the deflector wall structure, the overall structural compactness of the deflector wall is improved, thereby facilitating the loading and transportation of the deflector wall and saving time, manpower and material resources.

[0006] This invention provides the following technical solution: a method for installing a deflector wall for aircraft ground testing, the deflector wall comprising a first frame, a second frame, a flipping device and a support device mounted on the first frame, the second frame being connected to the flipping device, and comprising the following steps: S1 places the first frame on the test site with the side away from the first guide plate aligned with the baseline according to the preset baseline, and then opens the support device so that the support device is set perpendicular to the baseline. S2 continues to assemble the guide wall along the baseline at one end of the first frame, and then fixes it between the guide walls using locking components; After the S3 completes the test drive, the second frame is rotated upwards around the first frame to above the first frame via the flipping device, and then the support device is closed and attached to one side of the first frame. S4 Remove the locking assembly between the guide walls, rotate one adjacent guide wall towards the other guide wall with the intersection of the two adjacent guide walls as the rotation axis, so that the two guide walls are symmetrical about the baseline and the two ends of the guide walls are aligned. S5 fixes the two guide walls at both ends of the guide wall with locking components, and fixes the upper end of the first frame to the upper end of the second frame with connecting components, so that the two guide walls after the first frame is symmetrically arranged and connected to form a whole, and then hoisted onto the transport vehicle.

[0007] Furthermore, the flipping device includes a first driving member, a first connecting rod, and a second connecting rod. The two ends of the first connecting rod are rotatably connected to the first frame and the output end of the first driving member fixed on the first frame, respectively. The two ends of the second connecting rod are rotatably connected to the second frame and the output end of the first driving member, respectively. Step S3 also includes: The first drive unit outputs an extension action and drives the first link to rotate downward around the first frame, while simultaneously driving the second link to rotate downward. This causes the second link to generate a pushing force on the first connecting rod of the second frame and act on the second frame, thereby causing the second frame to rotate and fold upward around the hinge between the first and second frames, thus flipping the second frame above the first guide plate.

[0008] When not in use, the above configuration allows the first driving component to drive the first connecting rod to rotate downward around the first frame, while simultaneously causing the second connecting rod to exert a pushing force on the second frame. This force causes the second frame to rotate upward around the hinge between the first and second frames, thus flipping the second frame above the first frame. When in use, the first driving component reverses the rotation of the first and second connecting rods to flip the second frame downward around the first frame, thus resetting it.

[0009] Furthermore, the first frame is provided with two or more first limiting rods and second limiting rods, and the second limiting rods are provided with second connecting ears. The first limiting rods and the second limiting rods are inclined. A first limiting through groove is formed between the first limiting rods and a second limiting through groove is formed between the second limiting rods. The first limiting through groove and the second limiting through groove are aligned and connected. The output end of the first driving member passes through the first limiting through groove and is rotatably connected to the first frame.

[0010] The above configuration allows the first drive component to rotate around the first frame while pushing the first and second connecting rods to rotate, preventing jamming. At the same time, the two first limiting rods can limit the two sides of the first drive component to prevent it from deviating or swinging during rotation. They also allow the first drive component to drive the second limiting rod to rotate within the second limiting slot, thus limiting the second limiting rod.

[0011] Furthermore, the second frame is provided with a first connecting rod, which is located between two second limiting rods. The first connecting rod is provided with a first connecting lug. The first connecting rod passes through the two second limiting rods via a first rotating shaft and is hinged to the second limiting rod in the second limiting groove.

[0012] The above configuration facilitates the rotational connection between the first driving component and the first connecting lug of the first connecting rod via the second link, and enables the two second limiting rods to limit the first connecting rod to prevent the first connecting rod from deviating and swinging during rotation.

[0013] Furthermore, there are two first connecting rods. One end of each of the two first connecting rods, which are rotatably connected to the output end of the first driving member, is respectively located on both sides of one end of the second connecting rod, which is rotatably connected to the output end of the first driving member. The other end of the first connecting rod is rotatably connected to the second connecting ear through the second rotating shaft, and the other end of the second connecting rod is rotatably connected to the first connecting ear through the third rotating shaft.

[0014] The above configuration allows the first connecting rod of the first frame to rotate through the combined action of the first and second connecting rods.

[0015] Furthermore, the first frame is provided with a first guide plate, the second frame is provided with a second guide plate, and each guide wall has two support devices, both of which are located on the side of the first frame away from the first guide plate. The support device includes a second drive member, a support frame and a fixed shaft. The second drive member is hinged to the first frame, and the fixed shaft passes through one side of the support frame and is rotatably connected to a third connecting ear provided on the first frame. One side of the support frame is rotatably connected to the output end of the second drive member. Step S1 also includes: The second drive unit performs the extension action, pushing the support frame to rotate 90° around the first frame and then set it perpendicular to the baseline; Step S3 also includes: The second drive unit performs a retraction action, pulling the support frame to rotate 90° in the opposite direction around the first frame and then attaching it to the side of the first frame away from the first guide plate.

[0016] The above settings, during the gas flow process, can support the entire guide wall through the support device, preventing the guide wall from deviating from its position.

[0017] Furthermore, the locking assembly includes a first locking plate, a locking member, and a second locking plate, both of which are provided with through holes that match the locking member; Step S2 also includes: After the adjacent guide walls are spliced ​​along the baseline, the first locking plate and the second locking plate are placed on the two adjacent guide walls respectively, and the through holes of the first locking plate and the second locking plate are aligned with the through holes of the fourth connecting ear set at the splicing point of the two adjacent guide walls. Then, the locking member is passed through the first locking plate, the fourth connecting ear and the second locking plate in sequence to achieve fixation.

[0018] The above settings can improve the connection stability between adjacent guide walls spliced ​​along the baseline.

[0019] Furthermore, the connecting assembly includes an arc-shaped connecting plate and a connector, wherein the arc-shaped connecting plate is provided with two or more screw holes that match the connector; Step S3 also includes: After the second frame is flipped over to be above the first frame, the upper end of the second frame and the upper end of the first frame form an arc-shaped mounting surface. Align the screw holes of the arc-shaped connecting plate with the screw holes of the connecting blocks on the first and second frames respectively. Then, the connectors pass through the arc-shaped connecting plate and the connecting blocks in sequence and are threaded into the screw holes to achieve fixation.

[0020] The above setup connects the first and second frames of the two symmetrically arranged flow guide walls into a single unit, resulting in better overall stability.

[0021] Furthermore, in step S2, the flipping device drives the second frame to flip downward around the first frame to one side of the first frame, so that the second frame and one side of the second frame fit together to form an arc-shaped mounting surface.

[0022] The above setup involves flipping the second frame to one side of the first frame before testing, thus creating an arc-shaped mounting surface between the first and second frames, which allows for the installation of the first and second air deflectors.

[0023] Furthermore, step S4 also includes: Release the locking mechanism from fixing the first and second locking plates, and then remove the first and second locking plates. Step S5 also includes: The first locking plate and the second locking plate are placed between the two first frames of the two guide walls, and the through holes of the first locking plate and the second locking plate are aligned with the through holes of the fourth connecting ear. Then, the locking member is passed through the first locking plate, the fourth connecting ear and the second locking plate in sequence to achieve fixation.

[0024] The above setup involves disassembling the first and second locking plates used for fixing in step S2 before hoisting, and then using the disassembled first and second locking plates to fix the guide walls together. This avoids the need for additional parts for fixing and prevents the loss of parts. At the same time, it makes the connection between the two symmetrically arranged guide walls more stable before hoisting and transportation.

[0025] The beneficial effects of this invention are as follows: After the first frame is placed on the test site, by opening the support device and setting it perpendicular to the baseline, the first frame can be better supported. Simultaneously, using the first placed guide wall as a reference, other guide walls can be aligned and spliced ​​along the baseline. Adjacent guide walls are then fixed together using locking components, forming a single unit, thus improving overall support stability. After gas flow is completed, the second frame is flipped above the first frame using a flipping device, while the support device is closed, thereby reducing the overall space occupied by the guide walls. After an adjacent guide wall is rotated along the baseline, the adjacent guide walls are symmetrically arranged about the baseline. The two symmetrical guide walls are fixed by the locking components after disassembly. This makes the two guide wall structures connected into one unit along the width of the guide wall. The upper ends of the two symmetrical guide walls are also connected into one unit by the connecting components, which makes the overall structure more compact. Because of the symmetrical arrangement, the stress on the whole structure is even during hoisting and transportation, effectively avoiding the problem of uneven stress on the overall structure due to the inability to fold the structure, which would lead to inconvenience and time-consuming hoisting and transportation. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the splicing of multiple flow guide walls according to the present invention.

[0027] Figure 2 This is a structural schematic diagram of the splicing of multiple flow guide walls according to the present invention from another perspective.

[0028] Figure 3 This is a three-dimensional structural diagram of the flow guide wall in this invention.

[0029] Figure 4 This is a schematic diagram of the flow guide wall from another perspective in this invention.

[0030] Figure 5 This is a schematic diagram of the structure of the present invention after the second frame is folded.

[0031] Figure 6 for Figure 3 Enlarged view of point A in the middle.

[0032] Figure 7 for Figure 5 Enlarged view of section B in the middle.

[0033] Figure 8 This is a schematic diagram of the structure in this invention where the two flow guide walls are connected after folding over the second frame.

[0034] Figure 9 This is a side view of the two flow guide walls connected after the second frame is folded up in this invention.

[0035] Figure 10 This is a schematic diagram of the structure in this invention where two guide walls are connected by a locking assembly before hoisting.

[0036] Figure 11 This is a schematic diagram of the structure in this invention where two flow guide walls are connected by a locking assembly when spliced ​​along a baseline.

[0037] Figure 12 for Figure 1 Enlarged view of point C in the middle.

[0038] Figure 13 This is an exploded view of the present invention.

[0039] Figure 14 This is a flowchart of the present invention.

[0040] Explanation of icon numbers: 1-First frame; 2-Second frame; 3-First guide vane; 4-Second guide vane; 5-Second limiting rod; 6-Second connecting ear; 7-First connecting rod; 8-First connecting ear; 9-First rotating shaft; 10-First driving component; 11-First connecting rod; 12-Second connecting rod; 13-First limiting rod; 14-Second rotating shaft; 120-Fifth rotating shaft; 21-Guide wall; 22-Second driving component; 23-Fixed shaft; 24-Third connecting ear; 25-First support rod; 26-Second support rod; 27-Third Support rod; 28-Fourth support rod; 29-Fifth support rod; 30-Fifth connecting ear; 301-Sixth rotating shaft; 31-First locking plate; 32-Second locking plate; 33-Fourth connecting ear; 34-Arc-shaped connecting plate; 35-Connector; 101-First frame; 102-First and second frames; 1021-First and second horizontal frames; 1022-First and second vertical frames; 1023-First and second arc-shaped frames; 201-Second horizontal frame; 202-Second vertical frame; 203-Second arc-shaped frame. Detailed Implementation

[0041] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0042] like Figure 1-13 As shown, the present invention provides an installation method for an aircraft ground test deflector wall. The deflector wall 21 includes a first frame 1, a flipping device, and a second frame 2. The first frame 1 is provided with a first deflector plate 3, and the second frame 2 is provided with a second deflector plate 4. The flipping device is disposed on the first frame 1. The first frame 1 is provided with two second limiting rods 5, forming a second limiting through groove between the second limiting rods 5. The second limiting rods 5 are provided with second connecting ears 6. The second frame 2 is provided with a first connecting rod 7, which is disposed between the two second limiting rods 5. The first connecting rod 7 is provided with a first connecting ear 8. The first connecting rod 7 passes through the two second limiting rods 5 via a first rotating shaft 9 and is hinged to the second limiting rods 5 in the second limiting through groove. This allows the first frame 1 and the second frame 2 to rotate hingedly. During the rotation, the two second limiting rods 5 simultaneously limit the first connecting rod 7 to prevent the first connecting rod 7 from deviating or swinging. In this embodiment, there are two hinges between the first frame 1 and the second frame 2 on each guide wall 21, which makes the second frame 2 more stable during rotation when the flipping device drives the second frame 2 to rotate.

[0043] like Figure 13As shown, the lower end of the first frame 1 is provided with a first frame 101, the cross-section of which is a square frame structure. The upper end of the first frame 101 is provided with a first second frame 102, which includes a first second horizontal frame 1021, a first second vertical frame 1022, and a first second arc-shaped frame 1023. The first second horizontal frame 1021, the first second vertical frame 1022, and the first second arc-shaped frame 1023 are connected end to end to form a frame. The second frame 2 includes a second first horizontal frame. The second vertical frame 202, the second arc-shaped frame 203, the second horizontal frame 201, the second vertical frame 202, and the second arc-shaped frame 203 are connected end to end to form a frame. After the second frame 2 is unfolded, the height of the second vertical frame 202 is set to be equal to the height of the first frame 101. The first and second arc-shaped frames 1023 and the second arc-shaped frame 203 are arranged opposite to each other to form a complete arc-shaped support frame. The first guide plate 3 and the second guide plate 4 are set on the arc-shaped support frame.

[0044] like Figure 6 and 7 As shown, the flipping device includes a first driving member 10, a first connecting rod 11, and a second connecting rod 12. The two ends of the first connecting rod 11 are rotatably connected to the first frame 1 and the output end of the first driving member 10, which is hinged to the first frame 1, respectively. The two ends of the second connecting rod 12 are rotatably connected to the second frame 2 and the output end of the first driving member 10, respectively. Two first limiting rods 13 are also provided on the first frame 1. The first limiting rods 13 and the second limiting rods 13 are inclined and form a first limiting through groove between adjacent first limiting rods 13. The output end of the first driving member 10 passes through the first limiting through groove and is rotatably connected to the first frame 1 through a fourth rotating shaft. This facilitates the first driving member 10 to drive the first connecting rod 11 and the second connecting rod 12 to push the second frame 2 to rotate and flip around the first frame 1. During the flipping process, the first driving member 10 can also rotate around the first frame 1 to avoid jamming. At the same time, the two first limiting rods 13 can limit the two sides of the first driving member 10 to prevent the first driving member 10 from deviating and swinging during rotation. In this embodiment, the first driving component 10 is a cylinder.

[0045] like Figure 6 and 7As shown, there are two first connecting rods 11. One end of the first connecting rod 11 and one end of the second connecting rod 12 are rotatably connected to the output end of the first driving member 10 through the fifth rotating shaft 120. One end of the two first connecting rods 11 rotatably connected to the output end of the first driving member 10 are respectively set on both sides of one end of the second connecting rod 12 rotatably connected to the output end of the first driving member 10. The other end of the first connecting rod 11 is set inside the second connecting ear 6 and is rotatably connected to the second connecting ear 6 through the second rotating shaft 14. At the same time, the distance between the second connecting ears 6 matches the distance of the second limiting through groove. The other end of the second connecting rod 12 is rotatably connected to the first connecting ear 8 through the third rotating shaft. In this embodiment, the width of the second connecting rod 12 is smaller than the distance of the second limiting through groove so that the second connecting rod 12 can pass through the second limiting groove during the rotation of the second frame 2.

[0046] In this embodiment, the length of the first link 11 is greater than the length of the second link 12. Since the first connecting ear 8 is located above the second connecting ear 6, the first link 11 needs to rotate around the first frame 1 by a larger radius during the process of pushing the second frame 2 to rotate to the position above the first frame 1.

[0047] like Figure 12 As shown, each guide wall 21 has two support devices, both located on the side of the first frame 1 away from the first guide plate. Each support device includes a second drive member 22, a support frame, and a fixed shaft 23. The second drive member 22 is hinged to the first frame. The fixed shaft 23 passes through one side of the support frame and is rotatably connected to a third connecting ear 24 located on the first frame. One side of the support frame is rotatably connected to the output end of the second drive member 22. In this embodiment, the support frame includes a first support rod 25, a second support rod 26, a third support rod 27, a fourth support rod 28, and two fifth support rods 29. The fourth support rod 28 has a fifth connecting ear 30, which is connected to the output end of the second drive member 22 via a sixth rotating shaft 301. The fourth support rod 28 is rotatably connected to the fifth support rod 29 at both ends. The fixed shaft 23 passes through the fifth support rod 29 and is rotatably connected to the third connecting ear 24. One end of the first support rod 25 is fixedly connected to a fifth support rod 29. One end of the second support rod 26 is fixedly connected to another fifth support rod 29. The other end of the first support rod 25, which is inclined downward relative to a fifth support rod 29, is fixedly connected to the other end of the second support rod 26, which is inclined downward relative to another fifth support rod 29. The third support rod 27 is fixedly connected between the first support rod 25 and the second support rod 26, so as to stably support the first frame. In this embodiment, the second driving component 22 is a cylinder.

[0048] like Figure 10 and 11As shown, the locking assembly includes a first locking plate 31, a locking element, and a second locking plate 32. Both the first locking plate 31 and the second locking plate 32 have through holes that match the locking element. This locking assembly, through its fixing effect, improves the connection stability between adjacent guide walls 21 spliced ​​along the baseline, and also provides greater stability for the connection between two symmetrically arranged guide walls 21 before hoisting and transportation. In this embodiment, the lengths of the first locking plate 31 and the second locking plate 32 match the spacing between the fourth connecting ears 33 on the first frame, and the locking element consists of a bolt and a nut that matches the bolt.

[0049] like Figure 10 As shown, the connecting assembly includes an arc-shaped connecting plate 34 and a connector 35. The arc-shaped connecting plate 34 has two or more screw holes that match the connector 35. Through the fixing connection of the connecting assembly, the first and second frames on the two symmetrically arranged guide walls 21 can be connected into one unit, thus ensuring overall stability. In this embodiment, the connector 35 is a screw that matches the screw holes.

[0050] The installation method includes the following specific steps: S1 marks a preset baseline on the test site along the direction perpendicular to the gas flow. Based on the preset baseline, the side of the first frame 1 away from the first guide plate 3 is aligned with the baseline and placed on the test site. Then, the support device is opened, and the second drive member 22 performs an extension action, pushing the support frame to rotate 90° around the first frame 1 and set it perpendicular to the baseline.

[0051] S2 continues to splice the guide wall 21 along the baseline at one end of the first frame 1, and then fixes it between the guide walls 21 by locking components. Specifically, the first locking plate 31 and the second locking plate 32 are placed on two adjacent guide walls 21 respectively, and the through holes of the first locking plate 31 and the second locking plate 32 are aligned with the through holes of the fourth connecting ear 33 set at the splicing point of the two adjacent guide walls 21. Then, the locking component is passed through the first locking plate 31, the fourth connecting ear 33 and the second locking plate 32 in sequence to achieve fixation until the length of the spliced ​​guide wall 21 meets the length required by the test site.

[0052] After completing the test run, S3 folds up the adjacent guide wall 21. The specific folding process is as follows: the output end of the first drive unit extends and drives the first connecting rod 11 to rotate downward around the first frame 1, while simultaneously driving the second connecting rod 12 to rotate downward. Then, the second connecting rod 12 exerts a pushing force on the first connecting rod 11 of the second frame 2 and acts on the second frame 2, thereby causing the second frame 2 to rotate upward around the hinge between the first frame 1 and the second frame 2, thus flipping the second frame 2 above the first guide plate 3. After the second frame 2 is flipped above the first guide plate 3, the screw holes of the arc-shaped connecting plate 34 are aligned with the screw holes of the connecting block on the first frame 1 and the connecting block on the second frame 2, respectively. Then, the connecting piece 35 passes through the arc-shaped connecting plate 34 and the connecting block in sequence and is threadedly connected to the screw holes to achieve fixation. Then, the second drive unit 22 performs a retraction action, pulling the support frame to rotate 90° in the opposite direction around the first frame 1 and then attaching it to the side of the first frame 1 away from the first guide plate.

[0053] S4 Remove the locking parts used to fix the first locking plate 31 and the second locking plate 32 between the guide walls 21, and remove the first locking plate 31 and the second locking plate 32. Rotate an adjacent guide wall 21 180° along the intersection of the two adjacent guide walls as the rotation axis, so that the two guide walls 21 are symmetrically arranged about the baseline and the two ends of the guide walls 21 are aligned.

[0054] S5 places the first locking plate 31 and the second locking plate 32 between the two first frames 1 of the two guide walls 21 at both ends of the guide wall 21, and aligns the through holes of the first locking plate 31 and the second locking plate 32 with the through holes of the fourth connecting ear 33. Then, the locking member passes through the first locking plate 31, the fourth connecting ear 33 and the second locking plate 32 in sequence to fix the two guide walls 21, so that the two guide walls 21 after folding the first frames are symmetrically arranged and connected to form a whole. The guide wall is lifted onto the transport vehicle and transported away from the test site by hooking the arc-shaped mounting plate position with the hoisting equipment.

[0055] The working principle of this invention is as follows: After the first frame 1 is placed on the test site, the support device is opened and set perpendicular to the baseline to support the first frame 1. Then, using the first placed guide wall 21 as a reference, the other guide walls 21 are aligned and spliced ​​along the baseline. The adjacent guide walls 21 after splicing are fixed by locking components, thus forming a whole, thereby achieving better overall support stability. After the gas flow is completed, the second frame is flipped above the first frame by the flipping device, and the support device is closed at the same time. The adjacent guide walls 21 are then symmetrically arranged about the baseline and fixed by locking components. This makes the two guide walls 21 structurally connected to form a whole, thus making the overall structure more compact. Moreover, due to the symmetrical arrangement, the stress on the whole is uniform during hoisting and transportation, effectively avoiding the problem of uneven stress on the overall structure due to the inability to flip the structure, which would lead to inconvenience and time-consuming hoisting and transportation.

Claims

1. A method for installing a deflector wall for aircraft ground testing, the deflector wall comprising a first frame, a second frame, a tilting device and a supporting device mounted on the first frame, the second frame being connected to the tilting device, characterized in that: S1 places the first frame on the test site with the side away from the first guide plate aligned with the baseline according to the preset baseline, and then opens the support device so that the support device is set perpendicular to the baseline. S2 continues to assemble the guide wall along the baseline at one end of the first frame, and then fixes it between the guide walls using locking components; After the S3 completes the test run, the second frame is rotated upwards around the first frame to above the first frame via the flipping device, and then the support device is closed and attached to the side of the first frame away from the first guide plate. S4 Remove the locking assembly between the guide walls, rotate one adjacent guide wall towards the other guide wall with the intersection of the two adjacent guide walls as the rotation axis, so that the two guide walls are symmetrical about the baseline and the two ends of the guide walls are aligned. S5 fixes the two guide walls at both ends of the guide wall with locking components, and fixes the upper end of the first frame to the upper end of the second frame with connecting components, so that the two guide walls after the first frame is symmetrically arranged and connected to form a whole, and then hoisted onto the transport vehicle.

2. The installation method of the aircraft ground test guide wall according to claim 1, characterized in that: The flipping device includes a first driving member, a first connecting rod, and a second connecting rod. The two ends of the first connecting rod are rotatably connected to the first frame and the output end of the first driving member fixed on the first frame, respectively. The two ends of the second connecting rod are rotatably connected to the second frame and the output end of the first driving member, respectively. Step S3 also includes: The first drive unit outputs an extension action and drives the first link to rotate downward around the first frame, while simultaneously driving the second link to rotate downward. This causes the second link to generate a pushing force on the first connecting rod of the second frame and act on the second frame, thereby causing the second frame to rotate and fold upward around the hinge between the first and second frames, thus flipping the second frame above the first guide plate.

3. The installation method of an aircraft ground test deflector wall according to claim 1, characterized in that: The first frame is provided with two or more first limiting rods and second limiting rods. The second limiting rod is provided with a second connecting ear. The first limiting rod and the second limiting rod are inclined. A first limiting through groove is formed between the first limiting rods and a second limiting through groove is formed between the second limiting rods. The first limiting through groove and the second limiting through groove are aligned and connected. The output end of the first driving member passes through the first limiting through groove and is rotatably connected to the first frame.

4. The installation method of an aircraft ground test deflector wall according to claim 1, characterized in that: The second frame is provided with a first connecting rod, which is located between two second limiting rods. The first connecting rod is provided with a first connecting lug. The first connecting rod passes through the two second limiting rods via a first rotating shaft and is hinged to the second limiting rod in the second limiting groove.

5. The installation method of an aircraft ground test guide wall according to claim 2, characterized in that: The first connecting rod is provided in two parts. One end of the two first connecting rods, which are rotatably connected to the output end of the first driving component, is respectively located on both sides of one end of the second connecting rod, which is rotatably connected to the output end of the first driving component. The other end of the first connecting rod is rotatably connected to the second connecting ear through the second rotating shaft, and the other end of the second connecting rod is rotatably connected to the first connecting ear through the third rotating shaft.

6. The installation method of an aircraft ground test deflector wall according to claim 1, characterized in that: The first frame is provided with a first guide plate, and the second frame is provided with a second guide plate. Each guide wall has two support devices, both of which are located on the side of the first frame away from the first guide plate. The support device includes a second drive member, a support frame and a fixed shaft. The second drive member is hinged to the first frame. The fixed shaft passes through one side of the support frame and is rotatably connected to a third connecting ear located on the first frame. One side of the support frame is rotatably connected to the output end of the second drive member. Step S1 also includes: The second drive unit performs the extension action, pushing the support frame to rotate 90° around the first frame and then set it perpendicular to the baseline; Step S3 also includes: The second drive unit performs a retraction action, pulling the support frame to rotate 90° in the opposite direction around the first frame and then attaching it to the side of the first frame away from the first guide plate.

7. The installation method of an aircraft ground test deflector wall according to claim 1, characterized in that: The locking assembly includes a first locking plate, a locking member, and a second locking plate. Both the first locking plate and the second locking plate are provided with through holes that match the locking member. Step S2 also includes: After the adjacent guide walls are spliced ​​along the baseline, the first locking plate and the second locking plate are placed on the two adjacent guide walls respectively, and the through holes of the first locking plate and the second locking plate are aligned with the through holes of the fourth connecting ear set at the splicing point of the two adjacent guide walls. Then, the locking member is passed through the first locking plate, the fourth connecting ear and the second locking plate in sequence to achieve fixation.

8. The installation method of an aircraft ground test deflector wall according to claim 1, characterized in that: The connecting assembly includes an arc-shaped connecting plate and a connector, wherein the arc-shaped connecting plate is provided with two or more screw holes that match the connector; Step S3 also includes: After the second frame is rotated upwards around the first frame by the flipping device and placed above the first frame, the upper end of the second frame and the upper end of the first frame form an arc-shaped mounting surface. The screw holes of the arc-shaped connecting plate are aligned with the screw holes of the connecting blocks on the first and second frames, respectively. Then, the connecting parts are threaded through the arc-shaped connecting plate and the connecting blocks and then fixed by screws.

9. The installation method of an aircraft ground test deflector wall according to claim 1, characterized in that: In step S2, the flipping device drives the second frame to flip downward around the first frame to one side of the first frame, so that the second frame and one side of the second frame fit together to form an arc-shaped mounting surface.

10. The installation method of an aircraft ground test deflector wall according to claim 7, characterized in that: Step S4 also includes: Release the locking mechanism from fixing the first and second locking plates, and then remove the first and second locking plates. Step S5 also includes: After removing the first and second locking plates, place them between the two first frames of the two guide walls, aligning the through holes of the first and second locking plates with the through holes of the fourth connecting ear. Then, pass the locking components through the first locking plate, the fourth connecting ear, and the second locking plate in sequence to achieve fixation.

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