A method for installing an integrated folding guide wall

Abstract

The application provides a mounting method of an integrated folding guide wall, which comprises two or more fixing bases, guide wall units arranged on the fixing bases and counterweights arranged on the guide wall units, the fixing base is provided with a limiting support, a limiting space for accommodating the guide wall unit is formed in the limiting support, the guide wall unit comprises a support frame, a first guide assembly arranged on one side of the support frame, a second guide assembly hinged to the connecting position of the first guide assembly and the support frame and folding assemblies hinged to the second guide assembly and the support frame respectively; the method can realize accurate splicing and mounting of different guide wall units, and the angle of part of the guide surface of the guide wall unit can be adjusted to meet different test driving conditions of different models.

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 foldable air deflector wall. Background Technology

[0002] During ground testing of aircraft engines, the engine thrust is extremely high, and the wake may blow away nearby small aircraft, service vehicles, and other equipment, or even cause safety accidents and endanger on-site personnel. For the sake of operational safety and personal safety, the wake needs to be treated when testing different aircraft models to prevent the wake from causing harm to surrounding facilities and personnel.

[0003] For example, Chinese patent application number 201520414789.5, classification number B64F1 / 26, and publication date 2015.11.11 discloses a splicing unit for a noise reduction and airflow guide wall for aircraft ground testing. The wall is formed by horizontally splicing several splicing units. The windward side of the splicing unit is an arc shape that can tilt the airflow upward and guide it into the air. From the windward side to the leeward side, the splicing unit consists of a stainless steel microporous plate, a sound-absorbing plate, a sound-insulating plate, a cavity layer, and a back sealing plate.

[0004] The aforementioned airflow guide wall splicing unit uses a multi-layered sound-absorbing structure formed by microporous plates, sound-absorbing plates, sound-insulating plates, and galvanized steel plates to address the issues of noise and airflow threats during aircraft testing. However, the walls in the airflow guide wall splicing unit cannot be folded, thus making it impossible to adjust the angle of the airflow guide surface to meet the different testing conditions of different aircraft models. In order to increase the area of ​​the airflow guide wall, existing technologies splice multiple airflow guide walls by fixing them separately on the ground. However, this does not consider the problem of splicing gaps between multiple airflow guide walls, nor can it ensure that multiple spliced ​​airflow guide walls can be folded or have their folding angles adjusted simultaneously. Furthermore, during installation, existing technologies place multiple airflow guide walls on the same straight line, which cannot ensure the control of gaps between adjacent airflow guide walls. Multiple adjustments are required to make the gaps relatively small and reliable after installation, resulting in a complex installation process and relatively poor airflow guide wall performance after installation. Summary of the Invention

[0005] The purpose of this invention is to provide an installation method for an integrated foldable guide wall, which can achieve precise splicing and installation of different guide wall units, and adjust the angle of the guide surface of the overall adjustment part of the guide wall unit to meet different test conditions of different models.

[0006] This invention provides the following technical solution: an installation method for an integrated foldable flow guide wall, comprising two or more fixed seats, each fixed seat having a limiting bracket, the limiting bracket having a limiting space for accommodating a flow guide wall unit, the flow guide wall unit comprising a support frame and a first flow guide component disposed on one side of the support frame; the flow guide wall unit further comprises a second flow guide component hinged to the connection between the first flow guide component and the support frame, and a folding component hinged to the second flow guide component and the support frame respectively;

[0007] It also includes the following steps:

[0008] S1 aligns the center line of the fixed seat with the first reference line according to the preset first reference line, and then fixes the two adjacent fixed seats by the splicing components set between the fixed seats;

[0009] S2 places different flow guide wall units in the corresponding limiting space. After limiting the support frame by the limiting bracket, the extension line of the straight line where the second flow guide component and the support frame are hinged is used to form a second reference line on the limiting bracket.

[0010] After S3 aligns the different flow guide wall units with the second baseline, it drives the second flow guide component to rotate to a preset angle within the limited space through the folding component, and then determines whether the second flow guide plate of the second flow guide component in the different flow guide wall units is in the same flow guide surface;

[0011] S4. A third guide plate is fixedly installed between two adjacent first guide components. Then, a fourth guide plate is fixedly installed between two adjacent second guide components. The angles between the two or more second guide components, the fourth guide plate, and the support frame are adjusted to form different curvature guide surfaces composed of the first guide area formed by the first guide component and the third guide plate and the second guide area formed by the second guide component and the fourth guide plate, and a guide test is performed.

[0012] The above setup allows different mounting bases to be placed on the test site according to the first baseline, ensuring they are aligned on the same straight line and thus guaranteeing a neat arrangement. By setting limiting spaces on the mounting bases and using limiting brackets on the bases, the support frames placed within these spaces are restricted, limiting the movement of the guide wall units to within the limited spaces. This prevents interference between adjacent guide wall units during alignment and alignment. Then, by rotating the second guide components of different guide wall units to a preset angle, it is verified whether the second guide components of the different guide wall units are within the same guide surface, thereby verifying whether adjacent different guide wall units are aligned with the same second baseline. The alignment ensures that adjacent flow guide wall units are neatly arranged on the same straight line. This also ensures that after the third and fourth flow guide plates are set between adjacent flow guide wall units, when the folding assembly drives the second flow guide assembly to fold, the fourth flow guide plate and the second flow guide assembly rotate together to achieve integrated folding. Furthermore, by observing whether the second flow guide assembly is on a straight line after the folding assembly drives the second flow guide assembly to fold, the integrated folding effect is further ensured. This improves the splicing accuracy between different flow guide wall units and allows the second flow guide assembly, after adjusting the angle, to form flow guide surfaces with different curvatures with the first flow guide assembly, in order to adapt to different aircraft ground test conditions.

[0013] Furthermore, the bottom of the fixing base is provided with two or more mounting slots, which are provided through the bottom of the fixing base along the width direction of the fixing base, and a connecting plate is provided across the mounting slot on the side of the mounting slot away from the fixing base.

[0014] Step S1 also includes:

[0015] After "fixing two adjacent fixed seats", the fixing rod passes through the mounting groove, and then the two ends of the fixing rod set at both ends of the protruding mounting groove are fixed to the ground by locking parts.

[0016] The above setup allows the mounting base to be fixed to the ground by passing a fixing rod that matches the mounting slot through the mounting slot.

[0017] Furthermore, the splicing assembly includes a splicing plate and two or more locking components, and the splicing plate is provided with through holes that match the locking components;

[0018] Step S1 also includes:

[0019] After "aligning the center line of the fixed seat with the first reference line", place the splicing plate tightly against the side of the two adjacent fixed seats, and align the perforation on the splicing plate with the connection hole on the fixed seat. Then, fix the splicing plate between the fixed seats by passing the locking piece through the perforation. Next, fix the splicing plate that is tightly against the side of the two adjacent limit brackets between the limit brackets by passing the locking piece through the perforation.

[0020] The above setup allows for initial fixation of the fixed base using splicing components. Since the limiting bracket is mounted on the fixed base, it is then spliced ​​and fixed using splicing components. This ensures that the splicing connection between the fixed bases and the splicing connection between the limiting brackets are on the same vertical line, thereby improving the connection stability between adjacent fixed bases and ensuring that adjacent fixed bases are neatly and stably arranged on the same straight line.

[0021] Furthermore, the second flow guiding assembly includes a support body, two or more second flow guiding plates, and sleeves spaced apart at the lower end of the support body and matched with the fixed shaft. The support body is provided with two or more second support rods spaced apart, and the second flow guiding plates are disposed on the second support rods.

[0022] Step S2 also includes:

[0023] Select the straight line where the support body rotates around the support frame in any flow guide wall unit located in the restricted space as the second reference line. Then mark the positioning points on different restricting brackets on the adjacent sides with the extension lines of the two ends of the second reference line, so that the fixed axis axis on the support frame in the different flow guide wall units on the adjacent sides is aligned with the two positioning points on the corresponding restricting bracket and is on the same straight line.

[0024] The above settings enable precise positioning of different flow guide wall units located in adjacent confined spaces, thereby aligning different flow guide wall units and placing them on the same straight line. This prevents positional deviations between different flow guide wall units from affecting the overall flow guiding effect after splicing.

[0025] Furthermore, each flow guide wall unit is provided with two folding assemblies. The folding assembly includes a second connecting seat fixed on the second support rod, a driving member, and a third connecting seat fixed on the support frame. The two ends of the driving member are respectively hinged to the second connecting seat and the third connecting seat.

[0026] Step S3 also includes:

[0027] The drive unit drives the support to rotate around the connection between the first flow guide assembly and the support frame, thereby driving the second flow guide plate to rotate around the first flow guide plate of the first flow guide assembly. After rotating to a preset angle, if the second flow guide plate of the second flow guide assembly in different flow guide wall units on adjacent sides is in the same flow guide surface, then proceed to step S4; otherwise, repeat step S2 to readjust the position of the flow guide wall unit with positional deviation in the limiting space so that the adjusted flow guide wall unit is on the second reference line.

[0028] The above settings, after aligning different guide wall units with the second baseline, drive the second guide plate to rotate around the first guide assembly by a preset angle through the drive component in the different guide wall units. Then, verify whether the different guide wall units on the adjacent sides are aligned and on the same straight line by checking whether the different second guide plates on the adjacent sides are in the same guide surface. This effectively avoids positional differences between different guide wall units in the corresponding limiting space.

[0029] Furthermore, the first flow guiding assembly includes two or more first flow guiding plates and first support rods that match the curvature of the first flow guiding plates. The first support rods, which are spaced apart, are fixedly connected to one side of the support frame, and the first flow guiding plates are disposed on the first support rods.

[0030] Step S4 also includes:

[0031] A third guide plate is installed below two adjacent limiting brackets and between two adjacent first guide plates, so that the two sides of the third guide plate are respectively connected to the two adjacent first guide plates, thereby forming a first guide area through the first guide assembly and the third guide plate; a fourth guide plate is installed between two adjacent second guide plates, so that the second guide assembly and the fourth guide plate form a second guide area.

[0032] The above configuration allows the third guide plate to fill the gap between two adjacent first guide plates, resulting in a better flow guiding effect in the first guide zone formed by splicing different guide wall units; at the same time, the fourth guide plate fills the gap between two adjacent second guide plates, resulting in a better flow guiding effect in the second guide zone formed by splicing different guide wall units.

[0033] Furthermore, a flow guide wall unit is provided on the fixed base, and a counterweight is provided on the flow guide wall unit. Step S4 also includes: placing the counterweight in the support frame of different flow guide wall units.

[0034] With the above setup, the counterweight can further stabilize the flow guide wall unit on the fixed base, so that the second flow guide component can be driven to rotate around the support frame through the folding component.

[0035] Furthermore, the support frame includes a first support structure, a second support structure, a third support structure, two or more third support rods, a fourth support rod, and a first inclined support rod. The first, second, and third support structures are arranged sequentially at intervals along the vertical direction. The third support rods are positioned between the first and second support structures and between the second and third support structures. The first inclined support rods are inclinedly positioned between the third support rods. The first inclined support rods and the third support rods respectively form two or more storage spaces that match the counterweights between the first and second support structures and between the second and third support structures.

[0036] Step S4 also includes:

[0037] After determining that the second guide plate is in the same guide surface in different guide wall units, the counterweight is placed in the storage space of the support frame in different guide wall units, and then a baffle is installed on the side of the limiting bracket near the counterweight.

[0038] The above settings can stably place the counterweight in the storage space and limit the counterweight placed in the storage space by the baffle to prevent the counterweight from falling out of the storage space.

[0039] Furthermore, it also includes step S5,

[0040] After completing the flow guiding test, S5 drives the support body to rotate around the support frame to the buffer platform formed above the third support structure through the drive component, so that the support body abuts against the third support structure, thereby driving the second flow guiding component to fold and be placed on the buffer platform.

[0041] With the above settings, when not in use, the second flow guide component can be folded and stored on the cache platform via the driver to reduce space usage.

[0042] Furthermore, a limiting step is provided at the position of the limiting platform corresponding to the limiting bracket, and the thickness of the limiting step is matched with that of the second flow guiding component.

[0043] The above settings allow the limiting step to accommodate the frame of the second flow guide component, thus enabling the folded second flow guide component to lie flat.

[0044] The beneficial effects of this invention are as follows: Different mounting bases can be placed on the test site according to a first baseline and aligned on the same straight line to ensure neat arrangement. By setting a limiting space on the mounting base and using limiting brackets on the mounting base, the support frame placed within the limiting space can be limited, thus restricting the flow guide wall units to move only within the limiting space, ensuring that adjacent flow guide wall units do not interfere with each other during alignment. Then, by rotating the second flow guide components of different flow guide wall units to a preset angle, it is verified whether the second flow guide components of different flow guide wall units are within the same flow guide surface, thereby verifying whether adjacent different flow guide wall units are within the same first... On the two baselines, it is ensured that adjacent different guide wall units are neatly arranged on the same straight line. This also ensures that after the third and fourth guide plates are set between adjacent different guide wall units, when the folding component drives the second guide component to fold, the fourth guide plate and the second guide component rotate together to achieve integrated folding. After the folding component drives the second guide component to fold, by observing whether the second guide component is on a straight line, the integrated folding effect is further ensured, thereby improving the splicing accuracy between different guide wall units. And the second guide component after the angle is adjusted forms a guide surface with different curvatures with the first guide component to adapt to different aircraft ground test conditions. Attached Figure Description

[0045] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0046] Figure 2 This is a side view of the present invention.

[0047] Figure 3 This is a schematic diagram of the connection of the splicing components in this invention.

[0048] Figure 4 This is a structural schematic diagram from another perspective of the present invention.

[0049] Figure 5 This is a partial exploded view of the present invention.

[0050] Figure 6 This is a partial exploded view of the flow guide wall unit in this invention.

[0051] Figure 7 for Figure 1 Enlarged view of point A in the middle.

[0052] Figure 8 This is a flowchart of the present invention.

[0053] Explanation of icon numbers:

[0054] 1-Support frame; 2-First flow guide assembly; 3-Second flow guide assembly; 4-Folding assembly; 5-Buffer platform; 6-First support structure; 7-Second support structure; 8-Third support structure; 9-Third support rod; 10-Fourth support rod; 11-First inclined support rod; 12-Second inclined support rod; 13-Third inclined support rod; 14-First support rod; 15-Fixed shaft; 16-First flow guide plate; 17-Second flow guide plate; 18-Sleeve; 19-Support body; 20-Second support rod; 21-Second connecting seat; 22- Drive component; 23-Third connecting seat; 24-First guide hole; 25-Second guide hole; 26-First guide hole array; 27-Second guide hole array; 28-Fixed seat; 29-Guide wall unit; 30-Limiting bracket; 31-Limiting space; 32-Splicing plate; 33-Locking component; 34-Mounting groove; 35-Connecting plate; 36-Third guide plate; 37-Third guide hole; 38-Third guide hole array; 39-Fourth guide plate; 40-Fourth guide hole; 41-Fourth guide hole array; 42-Counterweight block; 43-Baffle. Detailed Implementation

[0055] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0056] like Figure 1-7As shown, this invention provides an installation method for an integrated foldable flow guide wall. The integrated foldable flow guide wall includes two or more fixed seats 28, flow guide wall units 29 disposed on the fixed seats 28, and counterweights 42 disposed on the flow guide wall units 29. A limiting bracket 30 is provided on the fixed seat 28. A buffer platform 5 is provided on the limiting bracket 30 corresponding to the limiting platform position. The thickness of the buffer platform 5 is matched with that of the second flow guide component 3 to accommodate the frame of the second flow guide component, allowing the folded second flow guide component 3 to be laid flat. A limiting space 31 is formed within the limiting bracket 30 to accommodate the flow guide wall unit 29. Adjacent fixed seats 28 and adjacent limiting brackets 30 are locked together by splicing components. The splicing components include splicing plates 32 and two or more locking members 33. The splicing plates 32 have through holes that match the locking members 33. In this embodiment, the locking members 33 are... Bolts and matching nuts are used to initially fix the fixing base 28 using the splicing assembly. Since the limiting bracket 30 is set on the fixing base 28, the limiting bracket 30 is then spliced ​​and fixed using the splicing assembly. This ensures that the splicing connection between the fixing bases 28 and the splicing connection between the limiting brackets 30 are on the same vertical line, thereby improving the connection stability between adjacent fixing bases 28 and ensuring that adjacent different fixing bases 28 are neatly and stably arranged on the same straight line. In this embodiment, the bottom of the fixing base 28 is provided with two or more mounting grooves 34. The mounting grooves 34 are set through the bottom of the fixing base 28 along the width direction. The side of the mounting groove 34 away from the fixing base 28 is provided with a connecting plate 35 that spans the mounting groove 34. After the fixing rod that matches the mounting groove 34 passes through the mounting groove 34, the fixing base 28 is installed and fixed on the ground.

[0057] like Figure 5-6 As shown, the flow guide wall unit 29 includes a support frame 1, a first flow guide component 2 disposed on one side of the support frame 1, a second flow guide component 3 hinged to the connection between the first flow guide component 2 and the support frame 1, and a folding component 4 hinged to the second flow guide component 3 and the support frame 1 respectively. The first flow guide component 2 includes two or more first flow guide plates 16 and first support rods 14 that match the curvature of the first flow guide plates 16. The first support rods 14, which are spaced apart, are fixedly connected to one side of the support frame 1. The first flow guide plates 16 are disposed on the first support rods 14. In this embodiment, each flow guide wall unit 29 is provided with four first flow guide plates 16.

[0058] like Figure 5-6As shown, the second flow guiding assembly 3 includes a support body 19, two or more second flow guiding plates 17, and sleeves 18 spaced apart at the lower end of the support body 19 and matched with the fixed shaft 15. The support body 19 is provided with two or more second support rods 20 spaced apart. The second flow guiding plates 17 are disposed on the second support rods 20 so that the second flow guiding plates 17 can be installed and fixed on the second support rods 20. At the same time, the sleeves 18 enable the second flow guiding assembly 3 to be hinged to the support frame 1. In this embodiment, each flow guiding wall unit 29 is provided with four second flow guiding plates 17.

[0059] like Figure 5-6 As shown, each flow guide wall unit 29 has two folding components 4. Each folding component 4 includes a second connecting seat 21 fixed to the second support rod 20, a driving member 22, and a third connecting seat 23 fixed to the support frame 1. The two ends of the driving member 22 are hinged to the second connecting seat 21 and the third connecting seat 23, respectively. This allows the driving member 22 to rotate the second flow guide component 3 relative to the fixed shaft 15, thereby adjusting the angle between the second flow guide component 3 and the support frame 1. In this embodiment, the driving member 22 is a driving cylinder.

[0060] like Figure 2 , 5As shown in Figure 6, a buffer platform 5 matching the second flow guiding component 3 is formed at the top of the support frame 1. The support frame 1 includes a first support structure 6, a second support structure 7, a third support structure 8, two or more third support rods 9, a fourth support rod 10, a first inclined support rod 11, and a second inclined support rod 12. The first support structure 6, the second support structure 7, and the third support structure 8 are arranged sequentially at intervals along the vertical direction. The first support structure 6 and the second support structure 7, and the second support structure 7 and the third support structure 8 are all connected by the third support rods 9 for installation. The first inclined support rod 11 and the third support rod 9 respectively form two or more storage spaces matching the counterweight 42 between the first support structure 6 and the second support structure 7 and between the second support structure 7 and the third support structure 8. At the same time, a fourth support rod 10 is provided between the first support structure 6 and the second support structure 7 and on the side closer to the first support rod 14. By improving the connection stability between the first support structure 6 and the second support structure 7, the fourth support rod 10 is located between the first support structure 6 and the second support structure 7 and between the second support structure 7 and the third support structure 8. Each of the three support structures is provided with a first inclined support rod 11 that is inclined to the third support rod 9. The first inclined support rod 11 between the first support structure 6 and the second support structure 7 is parallel to the first inclined support rod 11 between the second support structure 7 and the third support structure 8. A second inclined support rod 12 is provided between the first support structure 6 and the second support structure 7 and is inclined between the third support rod 9 and the fourth support rod 10. A third inclined support rod 13 parallel to the first inclined support rod 11 is provided between the first support rod 14 and the third support rod 9 and between the first support rod 14 and the fourth support rod 10. In this way, the first support rod 14 can be supported by the combined action of the third support rod 9, the fourth support rod 10, the first inclined support rod 11, the second inclined support rod 12, and the third inclined support rod 13, so as to better support the first guide plate 16. In this embodiment, the first support rod 14 is an arc-shaped rod that matches the first guide plate 16. The first support structure 6, the second support structure 7, and the third support structure 8 are arranged parallel to each other. The third support structure 8 is located at the top of the support frame 1 to form a buffer platform 5.

[0061] like Figure 2 , 5 As shown in Figure 6, a fixed shaft 15 is provided on the third support structure 8 at the connection between the first support rod 14 and the support frame 1, and is arranged along the length of the support frame 1. The fixed shaft 15 is fixed to the top of the support frame 1 by a first connecting seat (not shown in the figure). In another embodiment, the two ends of the fixed shaft 15 can be fixedly connected to the limiting bracket 30 by welding. This allows the second flow guiding assembly 3 to be rotatably connected to the support frame 1 through the fixed shaft 15.

[0062] like Figure 1 and7 As shown, the first guide plate 16 is provided with a first guide hole array 26 composed of two or more first guide holes 24; the second guide plate 17 is provided with a second guide hole array 27 composed of two or more second guide holes 25; the third guide plate 36 is provided with a third guide hole array 38 composed of two or more third guide holes 37; and the fourth guide plate 39 is provided with a fourth guide hole array 41 composed of two or more fourth guide holes 40. In this embodiment, the two ends of the third guide plate 36 are fixed to the two sides of the second guide assembly by screws, and the two ends of the fourth guide plate 39 are fixed to the two sides of the second guide assembly by screws. The spacing between two adjacent rows of third guide holes 37 in the third guide hole array 38 is equal to the spacing between two adjacent rows of first guide holes 24 in the first guide hole array 26. The spacing between the two adjacent rows of second guide holes 25 in the second guide hole array 27 is greater than the spacing between the two adjacent rows of second guide holes 25 in the second guide hole array 27. The spacing between the two adjacent rows of second guide holes 25 in the second guide hole array 27 is greater than the spacing between the two adjacent rows of fourth guide holes 40 in the fourth guide hole array 41. This allows the third guide plate 36, the third guide hole array 38 on the third guide plate 36, the first guide plates on both sides of the third guide plate 36, and the first guide hole array on the first guide plate to form a first guide area. This allows the fourth guide plate 39, the fourth guide hole array 41 on the fourth guide plate 39, the second guide plates on both sides of the fourth guide plate 39, and the second guide hole array on the second guide plate to form a second guide area. By rotating the second guide area at different angles through the folding component, it can form a combined guide area with the first guide area with different curvatures to meet the different test conditions of different models. In one embodiment, the second guide plate is a planar guide plate. In another embodiment, the side of the second guide plate closer to the first guide plate can be a planar guide plate that is smoothly connected to the guide surface of the first guide plate, and the side of the second guide plate away from the first guide plate can be a curved guide plate that is smoothly connected to the planar guide plate. That is, the second guide plate is formed by splicing the planar guide plate and the curved guide plate.

[0063] like Figure 8 As shown, the installation method includes the following specific steps:

[0064] S1 places the center line of the fixed seat 28 on the test site according to the preset first reference line, aligns it with the first reference line, and then attaches the splicing plate tightly to the side of the two adjacent fixed seats 28, aligning the through hole on the splicing plate with the connection hole on the fixed seat 28. After the locking member 33 passes through the through hole, the splicing plate is fixed between the fixed seats 28. Then, after the locking member 33 passes through the through hole, the splicing plate that is tightly attached to the side of the two adjacent limit brackets 30 is fixed between the limit brackets 30. Thus, the two adjacent fixed seats 28 are fixed by the splicing assembly. Then, the fixing rod (not shown in the figure) passes through the mounting groove 34, and the two ends of the fixing rod that are set at both ends of the mounting groove 34 are fixed to the ground by the locking member 33.

[0065] S2 places different flow guide wall units 29 in corresponding limiting spaces 31. After limiting the support frame with limiting brackets 30, the straight line where the support body of any flow guide wall unit 29 located in the limiting space 31 rotates around the support frame is selected as the second reference line. Then, the extension lines at both ends of the second reference line are used to mark positioning points on different limiting brackets 30 on adjacent sides, so that the fixed axis axis of the support frame in the different flow guide wall units 29 on adjacent sides is aligned with the two positioning points on the corresponding limiting brackets 30 and is on the same straight line. This makes the different flow guide wall units 29 aligned and on the same straight line, preventing positional deviations of the different flow guide wall units 29 from affecting the overall flow guiding effect after splicing.

[0066] After aligning the different guide wall units 29 with the second reference line, the drive unit drives the support body to rotate around the connection between the first guide assembly and the support frame, so as to drive the second guide plate to rotate around the first guide plate of the first guide assembly within the limiting space 31. After rotating to a preset angle, if the second guide plate of the second guide assembly in the different guide wall units 29 on both sides is in the same guide surface, then proceed to step S4; otherwise, repeat step S2 to readjust the position of the guide wall unit 29 with positional deviation in the limiting space 31 so that the adjusted guide wall unit 29 is on the second reference line.

[0067] S4 places the counterweight 42 into the storage space of the support frame in different flow guide wall units 29, and installs a baffle 43 on the side of the limiting bracket 30 near the counterweight 42 to prevent the counterweight 42 from leaving the storage space. Then, a third flow guide plate 36 is installed below two adjacent limiting brackets 30 and between two adjacent first flow guide plates, so that the two sides of the third flow guide plate 36 are connected to the two adjacent first flow guide plates respectively, thereby forming a first flow guide area through the first flow guide assembly and the third flow guide plate 36. A fourth flow guide plate 39 is installed between two adjacent second flow guide plates, so that the second flow guide assembly and the fourth flow guide plate 39 form a second flow guide area. The angle between the second flow guide assembly and the support frame is adjusted according to different working conditions, so that the first flow guide area formed by the first flow guide assembly and the third flow guide plate 36 and the second flow guide area formed by the second flow guide assembly and the fourth flow guide plate 39 form different arc flow guide surfaces. After completion, a flow guide test is performed.

[0068] After completing the flow guiding test, the S5 drives the support body to rotate around the support frame and onto the buffer platform formed above the third support structure, so that the support body abuts against the third support structure, thereby driving the second flow guiding component to fold and be placed on the buffer platform. In this way, when not in use, the second flow guiding component can be folded and stored on the buffer platform by the drive component to reduce the space occupied.

[0069] The working principle of this invention is as follows: First, different fixed seats 28 are placed on the test site according to the first reference line and are on the same straight line to ensure the neat arrangement of different fixed seats 28. At the same time, the limiting brackets 30 on the fixed seats 28 limit the support frame placed in the limiting space 31, thereby restricting the flow guide wall unit 29 to move only within the limiting space 31, so that the two adjacent flow guide wall units 29 do not interfere with each other during the alignment and collinearity process. Then, the second flow guide component of different flow guide wall units 29 is rotated to a preset angle to verify whether the second flow guide component of different flow guide wall units 29 is in the same flow guide surface, thereby verifying whether the adjacent different flow guide wall units 29 are on the same second reference line, thereby ensuring that the adjacent different flow guide wall units 29 are neatly arranged on the same straight line, thereby improving the splicing accuracy between different flow guide wall units 29. Thus, the second flow guide component can be rotated around the support frame by the folding component, and the second flow guide component after the angle is adjusted and the first flow guide component forms a flow guide surface with different curvatures to adapt to the aircraft ground test under different working conditions.

Claims

1. A method for installing an integrated foldable flow guide wall, wherein the integrated foldable flow guide wall includes two or more fixed seats, each fixed seat is provided with a limiting bracket, and a limiting space is formed within the limiting bracket to accommodate a flow guide wall unit, the flow guide wall unit includes a support frame and a first flow guide component disposed on one side of the support frame, characterized in that: The flow guide wall unit also includes a second flow guide assembly hinged to the connection between the first flow guide assembly and the support frame, and a folding assembly hinged to the second flow guide assembly and the support frame respectively; it also includes the following steps: S1 aligns the center line of the fixed seat with the first reference line according to the preset first reference line, and then fixes the two adjacent fixed seats by the splicing components set between the fixed seats; S2 places different flow guide wall units in the corresponding limiting space. After limiting the support frame by the limiting bracket, the extension line of the straight line where the second flow guide component and the support frame are hinged is used to form a second reference line on the limiting bracket. After aligning the different flow guide wall units with the second baseline in step S3, the second flow guide component is rotated to a preset angle within the limiting space by the folding component. Then, it is determined whether the second flow guide plates of the second flow guide components in the different flow guide wall units are in the same flow guide surface. If the second flow guide plates of the second flow guide components in the different flow guide wall units on adjacent sides are in the same flow guide surface, then proceed to step S4. Otherwise, repeat step S2 to readjust the position of the flow guide wall unit with positional deviation in the limiting space so that the adjusted flow guide wall unit is on the second baseline. The buffer platform formed above the support frame is matched with the thickness of the second flow guide component to accommodate the frame of the second flow guide component so that the folded second flow guide component can be laid flat. S4 fixes a third guide plate between two adjacent first guide assemblies, so that the two sides of the third guide plate are connected to the two adjacent first guide plates respectively, thereby forming a first guide area through the first guide assembly and the third guide plate; then fixes a fourth guide plate between two adjacent second guide assemblies, so that the second guide assembly and the fourth guide plate form a second guide area. The second guide assembly is rotated to a preset angle within the limited space by the folding assembly. The angle between the second guide assembly and the support frame is adjusted according to different working conditions. The angle between two or more second guide assemblies, the fourth guide plate and the support frame is adjusted to form different curvature guide surfaces composed of the first guide area formed by the first guide assembly and the third guide plate and the second guide area formed by the second guide assembly and the fourth guide plate, and a guide test is performed.

2. The installation method of the integrated folding flow guide wall according to claim 1, characterized in that: The bottom of the fixing base is provided with two or more mounting slots, which are set through the bottom of the fixing base along the width direction of the fixing base. A connecting plate is provided across the mounting slot on the side of the mounting slot away from the fixing base. Step S1 also includes: After "fixing two adjacent fixed seats", the fixing rod passes through the mounting groove, and then the two ends of the fixing rod set at both ends of the protruding mounting groove are fixed to the ground by locking parts.

3. The installation method of the integrated folding guide wall according to claim 1, characterized in that: The splicing assembly includes a splicing plate and two or more locking components, and the splicing plate is provided with through holes that match the locking components; Step S1 also includes: After "aligning the center line of the fixed seat with the first reference line", place the splicing plate tightly against the side of the two adjacent fixed seats, and align the perforation on the splicing plate with the connection hole on the fixed seat. Then, fix the splicing plate between the fixed seats by passing the locking piece through the perforation. Next, fix the splicing plate that is tightly against the side of the two adjacent limit brackets between the limit brackets by passing the locking piece through the perforation.

4. The installation method of the integrated folding guide wall according to claim 1, characterized in that: The second flow guiding assembly includes a support body, two or more second flow guiding plates, and sleeves spaced apart at the lower end of the support body and matched with the fixed shaft. The support body is provided with two or more second support rods spaced apart, and the second flow guiding plates are disposed on the second support rods. Step S2 also includes: Select the straight line where the support body rotates around the support frame in any flow guide wall unit located in the restricted space as the second reference line. Then mark the positioning points on different restricting brackets on the adjacent sides with the extension lines of the two ends of the second reference line, so that the fixed axis axis on the support frame in the different flow guide wall units on the adjacent sides is aligned with the two positioning points on the corresponding restricting bracket and is on the same straight line.

5. The installation method of the integrated folding guide wall according to claim 1, characterized in that: Each flow guide wall unit is provided with two folding components. The folding components include a second connecting seat fixed on the second support rod, a driving member, and a third connecting seat fixed on the support frame. The two ends of the driving member are respectively hinged to the second connecting seat and the third connecting seat. Step S3 also includes: The drive unit drives the support body to rotate around the connection between the first flow guide assembly and the support frame, thereby driving the second flow guide plate to rotate around the first flow guide plate of the first flow guide assembly.

6. The installation method of the integrated folding guide wall according to claim 1, characterized in that: The first flow guiding assembly includes two or more first flow guiding plates and first support rods that match the curvature of the first flow guiding plates. The first support rods, which are spaced apart, are fixedly connected to one side of the support frame, and the first flow guiding plates are disposed on the first support rods.

7. The installation method of the integrated folding guide wall according to claim 1, characterized in that: A flow guide wall unit is provided on the fixed base, and a counterweight is provided on the flow guide wall unit. Step S4 also includes: placing the counterweight in the support frame of different flow guide wall units.

8. The installation method of the integrated folding flow guide wall according to claim 7, characterized in that: The support frame includes a first support structure, a second support structure, a third support structure, two or more third support rods, a fourth support rod, and a first inclined support rod. The first, second, and third support structures are arranged sequentially and at intervals along the vertical direction. The third support rods are positioned between the first and second support structures and between the second and third support structures. The first inclined support rods are inclinedly positioned between the third support rods. The first inclined support rods and the third support rods respectively form two or more storage spaces that match the counterweights between the first and second support structures and between the second and third support structures. Step S4 also includes: After determining that the second guide plate is in the same guide surface in different guide wall units, the counterweight is placed in the storage space of the support frame in different guide wall units, and then a baffle is installed on the side of the limiting bracket near the counterweight.

9. The installation method of the integrated folding flow guide wall according to claim 1, characterized in that: It also includes step S5, After completing the flow guiding test, S5 drives the support body to rotate around the support frame to the buffer platform formed above the third support structure through the drive component, so that the support body abuts against the third support structure, thereby driving the second flow guiding component to fold and be placed on the buffer platform.

10. The installation method of the integrated folding guide wall according to claim 1, characterized in that: The limiting bracket is provided with a limiting step at the position of the limiting platform, and the thickness of the limiting step is matched with that of the second flow guiding component.

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