Wind tunnel flow deflector installation method

Abstract

The invention provides a wind tunnel flow deflector installation method, and relates to the technical field of wind tunnels, and the wind tunnel flow deflector installation method comprises the following steps: a hoisting port is formed in the top of a wind tunnel, a hoisting frame and a transfer trolley are arranged in the wind tunnel, and the transfer trolley is located right below the hoisting port; hoisting the flow deflector outside the wind tunnel, enabling the flow deflector to extend in the vertical direction, and putting the flow deflector into the wind tunnel along the hoisting opening until the flow deflector is placed on the transfer trolley; the transfer trolley moves until the flow deflectors are located below a hoisting mechanism of the hoisting frame; the lifting mechanism lifts the flow deflector and moves in the extending direction of the lifting frame till the flow deflector is located at the first corner; and the edges of the two ends, in the bending direction, of the flow deflector are connected to the wall bodies, located on the two sides of the first corner, of the wind tunnel correspondingly. According to the invention, the flow deflector can be smoothly installed in the wind tunnel after the wind tunnel is built.

Description

Technical Field

[0001] The invention relates to the technical field of wind tunnels, and in particular to a method for installing a wind tunnel guide vane. Background Art

[0002] Basic equipment for aerodynamic research is an important basic equipment for the research and development of aerospace vehicles. As one of the basic equipment for aerodynamic research, large wind tunnels have a complex structure, which is mainly composed of a concrete cave body and various steel structural components inside. The guide vane is one of the main components of the wind tunnel equipment. The guide vane is an arc-shaped plate that is an integral long strip. Its structural dimensions are large and it is often installed at the four corners of the concrete cave body. Due to the small internal space of the cave body and the large size of the guide vane, the guide vane is often installed during the construction of the wind tunnel in related technologies. However, after the wind tunnel is built, it is impossible to transport the prefabricated guide vane as a whole to the interior of the cave body and install it in place using conventional technical methods. Summary of the invention

[0003] The problem to be solved by the present invention is how to install the guide vane inside the wind tunnel after the wind tunnel is built.

[0004] To this end, the present invention provides a method for installing a wind tunnel guide vane, comprising the following steps:

[0005] S1. A hoisting opening is opened at the top of the wind tunnel, and a hoisting frame and a transfer vehicle are arranged in the wind tunnel, wherein one end of the hoisting frame in the extension direction is close to the first corner of the wind tunnel, and the transfer vehicle is located directly below the hoisting opening;

[0006] S2, hoisting the guide plate outside the wind tunnel so that the guide plate extends in the vertical direction, and placing the guide plate into the wind tunnel along the hoisting opening until the guide plate is placed on the transfer vehicle;

[0007] S3, the transfer vehicle moves until the guide plate is located below the lifting mechanism of the lifting frame;

[0008] S4, the lifting mechanism lifts the guide plate and sets the guide plate vertically, and moves along the extension direction of the lifting frame until the guide plate is located at the first corner;

[0009] S5. Connect the edges of the guide plate at both ends along the bending direction to the walls of the wind tunnel located on both sides of the first corner respectively.

[0010] Optionally, after step S5, the method further includes:

[0011] S6, removing the installed guide plate from the lifting mechanism, and moving the lifting mechanism and the transfer vehicle back to their original positions;

[0012] S7, repeat steps S2 to S4, continue to hoist the plurality of guide plates, so that the plurality of guide plates are stacked, the convex surface of the latter guide plate is close to the concave surface of the former guide plate, and two adjacent guide plates are welded together.

[0013] Optionally, after step S7, the method further includes:

[0014] S8, installing the hanging frames at the second corner, the third corner and the fourth corner of the wind tunnel, and repeating steps S2 to S7 until all the guide vanes at the second corner, the third corner and the fourth corner are installed.

[0015] Optionally, embedded parts are provided on the walls on both sides of the first corner, and the guide plates are welded to the embedded parts.

[0016] Optionally, the guide plate includes an upper portion and a lower portion connected together in a vertical direction, and when hoisting the guide plate, the lower portion and the upper portion may be hoisted in sequence.

[0017] Optionally, the transfer vehicle includes a chassis and a plurality of limit plates, wherein the limit plates are connected to the chassis, and the plurality of limit plates are used to be respectively connected to both sides of the curved surface of the guide plate.

[0018] Optionally, there are three limit plates, one of which is used to be connected to the vertex of the convex surface of the guide plate, and the other two limit plates are used to be connected to the left and right ends of the concave surface of the guide plate respectively.

[0019] Optionally, the lifting frame includes legs, the lifting mechanism and a hanger, the legs are used to be supported on the ground, the hanger is connected to the legs and is used to extend in a direction toward the first corner, and the lifting mechanism is used to move relative to the hanger along the extension direction of the hanger.

[0020] Optionally, a fixing plate is provided above the hanger, and the fixing plate is used to abut against the top of the wind tunnel.

[0021] Optionally, the lifting mechanism includes a crossbeam, rollers and electric hooks, the rollers are provided at both ends of the crossbeam, the rollers are rollingly connected to the hanger, and the two electric hooks are respectively connected to the two ends of the lower surface of the crossbeam, and the electric hooks are used to lift the guide vane.

[0022] Compared with the prior art, the wind tunnel guide vane installation method of the present invention has the following beneficial effects:

[0023] The present invention provides a hoisting opening at the top of the wind tunnel as an entrance for placing the guide vane into the wind tunnel, and arranges a hoisting frame and a transfer vehicle in the wind tunnel, wherein one end of the hoisting frame in the extension direction is close to the first corner of the wind tunnel, and the transfer vehicle is located directly below the hoisting opening; the guide vane is hoisted outside the wind tunnel to extend the guide vane in the vertical direction, and the guide vane is placed into the wind tunnel along the hoisting opening; since the transfer vehicle is located directly below the hoisting opening, the guide vane can be placed on the transfer vehicle when placed into the wind tunnel; the transfer vehicle drives the guide vane to move in the wind tunnel, And move it to the bottom of the hanging frame; the lifting mechanism on the hanging frame lifts the guide plate and sets the guide plate vertically, and the lifting mechanism drives the guide plate to move along the extension direction of the hanging frame toward the first corner of the wind tunnel until the guide plate moves to the first corner; at this time, the edges of the left and right ends of the guide plate in the bending direction are respectively connected to the wind tunnel walls on both sides of the first corner to complete the installation of the guide plate in the wind tunnel. The installation method described in the present invention can smoothly install a larger guide plate in the wind tunnel after the wind tunnel is built. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 One of the flow charts of the method for installing a wind tunnel guide vane according to an embodiment of the present invention;

[0025] Figure 2 This is a second flow chart of a method for installing a wind tunnel guide vane according to an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of the structure of a wind tunnel according to an embodiment of the present invention;

[0027] Figure 4 This is one of the structural schematic diagrams of the guide plate according to an embodiment of the present invention;

[0028] Figure 5 This is a second structural schematic diagram of a guide plate according to an embodiment of the present invention;

[0029] Figure 6 It is a schematic structural diagram of a transfer vehicle according to an embodiment of the present invention;

[0030] Figure 7 It is a structural schematic diagram of a hanging frame according to an embodiment of the present invention;

[0031] Figure 8 It is a structural schematic diagram of a lifting mechanism according to an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 11-first corner; 12-second corner; 13-third corner; 14-fourth corner; 15-lifting port; 16-embedded parts; 2-guide vane; 21-upper part; 22-lower part; 3-transfer vehicle; 31-chassis; 32-limiting plate; 4-lifting frame; 41-support leg; 42-lifting mechanism; 421-crossbeam; 422-roller; 423-electric hook; 43-hanging bracket; 44-fixed plate. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] It should be noted that in the description of the present invention, the directions or positional relationships indicated by “up”, “down”, “left”, “right”, “top”, “bottom”, “front”, “back”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as limiting the scope of protection of the present invention.

[0036] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0037] Moreover, although the present invention is described with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the features of the various dependent claims and herein may be combined in a manner not described in the original claims. It may also be understood that the features described in conjunction with the individual embodiments may be used in other embodiments.

[0038] To solve the above problems, Figure 1 , Figure 3 and Figure 4 As shown, the present invention provides a method for installing a wind tunnel guide vane, comprising the following steps:

[0039] S1. A hoisting opening 15 is opened at the top of the wind tunnel, and a hoisting frame 4 and a transfer vehicle 3 are arranged in the wind tunnel, wherein one end of the hoisting frame 4 in the extending direction is close to the first corner 11 of the wind tunnel, and the transfer vehicle 3 is located directly below the hoisting opening 15;

[0040] S2, hoisting the guide plate 2 outside the wind tunnel so that the guide plate 2 extends in the vertical direction, and putting the guide plate 2 into the wind tunnel along the hoisting opening 15 until the guide plate 2 is placed on the transfer vehicle 3;

[0041] S3, the transfer vehicle 3 moves until the guide plate 2 is located below the lifting mechanism 42 of the lifting frame 4;

[0042] S4, the lifting mechanism 42 lifts the guide plate 2 and sets the guide plate 2 vertically, and moves along the extension direction of the lifting frame 4 until the guide plate 2 is located at the first corner 11;

[0043] S5. Connect the edges of the guide plate 2 at both ends along the bending direction to the walls of the wind tunnel located on both sides of the first corner 11 respectively.

[0044] In this embodiment, a hoisting port 15 is opened at the top of the wind tunnel as an entrance for placing the guide vane 2 into the wind tunnel, and a hoisting frame 4 and a transfer vehicle 3 are arranged in the wind tunnel, one end of the hoisting frame 4 in the extension direction is close to the first corner 11 of the wind tunnel, and the transfer vehicle 3 is located directly below the hoisting port 15; the guide vane 2 is hoisted outside the wind tunnel so that the guide vane 2 extends in the vertical direction, and the guide vane 2 is placed into the wind tunnel along the hoisting port 15. Since the transfer vehicle 3 is located directly below the hoisting port 15, the guide vane 2 can be placed on the transfer vehicle 3 when it is placed into the wind tunnel; the transfer vehicle 3 drives the guide vane 2 in the wind tunnel Move, and move to the bottom of the hanging frame 4; the lifting mechanism 42 on the hanging frame 4 lifts the guide plate 2, and makes the guide plate 2 vertically set, and the lifting mechanism 42 drives the guide plate 2 to move along the extension direction of the hanging frame 4 to the first corner 11 of the wind tunnel, until the guide plate 2 moves to the first corner 11; at this time, the edges of the left and right ends of the guide plate 2 in the bending direction are respectively connected to the wind tunnel walls on both sides of the first corner 11, to complete the installation of the guide plate 2 in the wind tunnel. The installation method described in the present invention can smoothly install the larger guide plate 2 in the wind tunnel after the wind tunnel is built.

[0045] Specifically, when erecting the hanging frame 4 , a scaffolding may be first built in the wind tunnel, and the hanging frame 4 may be erected close to the top of the wind tunnel through the scaffolding, and the hanging opening 15 may be opened near the first corner 11 .

[0046] Alternatively, if Figure 2 and Figure 5 As shown, after step S5, it also includes:

[0047] S6, removing the installed guide plate 2 from the lifting mechanism 42, and moving the lifting mechanism 42 and the transfer vehicle 3 back to their original positions;

[0048] S7, repeat steps S2 to S4, continue to hoist the multiple guide plates 2, so that the multiple guide plates 2 are stacked, the convex surface of the latter guide plate 2 is close to the concave surface of the previous guide plate 2, and the two adjacent guide plates 2 are welded together.

[0049] In this embodiment, after the guide vane 2 closest to the first corner 11 is installed, the guide vane 2 is removed from the lifting mechanism 42, and the lifting mechanism 42 and the transfer vehicle 3 are moved back to their original positions, and the subsequent multiple guide vanes 2 are continuously lifted outside the wind tunnel according to steps S2 to S4, and the subsequent multiple guide vanes 2 are welded to the previous guide vane 2. The multiple guide vanes 2 are stacked and the convex surface of the latter guide vane 2 is close to the concave surface of the previous guide vane 2, thereby completing the installation of the multiple guide vanes 2 at the first corner 11 of the wind tunnel.

[0050] Alternatively, if Figure 2 and Figure 3 As shown, after step S7, it also includes:

[0051] S8, installing the hanging frame 4 at the second corner 12, the third corner 13 and the fourth corner 14 of the wind tunnel, and repeating steps S2 to S7 until all the guide vanes 2 at the second corner 12, the third corner 13 and the fourth corner 14 are installed.

[0052] In this embodiment, by sequentially arranging a hanging frame 4 extending toward the second corner 12, the third corner 13 and the fourth corner 14 in the wind tunnel, and following the steps of installing the guide vane 2 at the first corner 11, a plurality of guide vanes 2 are respectively installed at the second corner 12, the third corner 13 and the fourth corner 14, thereby completing the installation of the guide vanes 2 at the four corners in the wind tunnel.

[0053] Optionally, embedded parts 16 are provided on the walls on both sides of the first corner 11 , and the guide plate 2 is welded to the embedded parts 16 .

[0054] In this embodiment, embedded parts 16 are arranged in the walls on both sides of the first corner 11, with part of the embedded parts 16 located in the wall and part of the embedded parts 16 located outside the wall. When installing the guide plate 2, the guide plate 2 can be welded on both sides in the horizontal direction to the guide plate 2 on the walls on both sides of the first corner 11, thereby completing the connection between the guide plate 2 closest to the first corner 11 and the walls on both sides of the first corner 11.

[0055] Specifically, at the first corner 11 , the subsequent guide vane 2 is directly welded to the previous guide vane 2 , and there is no need to provide an embedded part 16 to connect with the subsequent guide vane 2 .

[0056] Alternatively, if Figure 4As shown, the guide plate 2 includes an upper portion 21 and a lower portion 22 connected together in a vertical direction. When hoisting the guide plate 2, the lower portion 22 and the upper portion 21 can be hoisted in sequence.

[0057] In this embodiment, the guide plate 2 is divided into an upper part 21 and a lower part 22 in the vertical direction, and the upper part 21 and the lower part 22 are hoisted separately to reduce the hoisting weight and facilitate hoisting. During installation, the lower part 22 is hoisted first, and after the lower part 22 is connected to the walls on both sides of the first corner 11, the upper part 21 is hoisted and connected to the walls on both sides of the first corner 11. After the upper part 21 and the lower part 22 are installed, the upper part 21 and the lower part 22 are welded together.

[0058] Alternatively, if Figure 6 As shown, the transfer vehicle 3 includes a chassis 31 and a plurality of limit plates 32 , wherein the limit plates 32 are connected to the chassis 31 , and the plurality of limit plates 32 are used to be respectively connected to both sides of the curved surface of the guide plate 2 .

[0059] In this embodiment, a chassis 31 is provided as a power source for the transfer vehicle 3, and a plurality of limit plates 32 are provided on the chassis 31. The chassis 31 can drive the limit plates 32 to move in the wind tunnel. The plurality of limit plates 32 are combined to form a limit cavity. When the guide plate 2 is placed on the transfer vehicle 3, it can be placed in the limit cavity. The plurality of limit plates 32 are respectively abutted against both sides of the curved surface of the guide plate 2 to limit the guide plate 2 in the horizontal plane to prevent the guide plate 2 from moving at will.

[0060] Alternatively, if Figure 6 As shown, there are three limit plates 32, one of which is used to connect to the vertex of the convex surface of the guide plate 2, and the other two limit plates 32 are used to connect to the left and right ends of the concave surface of the guide plate 2 respectively.

[0061] In this embodiment, three limit plates 32 are set, one of which is connected to the vertex of the convex surface of the guide plate 2, and the other two limit plates 32 are located on one side of the concave surface of the guide plate 2, and are respectively connected to the left and right ends of the concave surface of the guide plate 2 in the horizontal direction. The three points determine a plane, and the three limit plates 32 are the minimum number of limit plates 32 that can limit the arbitrary movement of the guide plate 2 on the transfer vehicle 3. Three limit plates 32 are set to avoid waste of resources.

[0062] Alternatively, if Figure 7 As shown, the lifting frame 4 includes a support leg 41, a lifting mechanism 42 and a hanger 43. The support leg 41 is used to be supported on the ground. The hanger 43 is connected to the support leg 41 and is used to extend in the direction toward the first corner 11. The lifting mechanism 42 is used to move relative to the hanger 43 along the extension direction of the hanger 43.

[0063] In this embodiment, by setting up legs 41 and hangers 43, multiple legs 41 stand on the ground, and the hangers 43 are connected to the legs 41, so that the hangers 43 can reach a height that is convenient for lifting the guide vane 2. The hanger 43 is a hollow rectangular frame, and the hanger 43 extends toward the first corner 11. The lifting mechanism 42 is connected to the hanger 43, and the lifting mechanism 42 can move along the extension direction of the hanger 43. After the lifting mechanism 42 lifts the guide vane 2, the lifting mechanism 42 drives the guide vane 2 to move along the extension direction of the hanger 43 toward the first corner 11, so as to facilitate moving the guide vane 2 to the first corner 11.

[0064] Alternatively, if Figure 7 As shown, a fixing plate 44 is provided above the hanger 43, and the fixing plate 44 is used to abut against the top of the wind tunnel.

[0065] In this embodiment, a fixing plate 44 is arranged above the hanger 43, the fixing plate 44 supports the top of the wind tunnel, and the legs 41 and the fixing plate 44 support the hanger 43 below and above the hanger 43 respectively, so that the overall structure of the hanging frame 4 is more stable.

[0066] Alternatively, if Figure 8 As shown, the lifting mechanism 42 includes a crossbeam 421, a roller 422 and an electric hook 423. The rollers 422 are provided at both ends of the crossbeam 421. The rollers 422 are rollingly connected to the hanger 43. The two electric hooks 423 are respectively connected to the two ends of the lower surface of the crossbeam 421. The electric hooks 423 are used to lift the guide vane 2.

[0067] In this embodiment, a crossbeam 421 is set as the main body of the lifting mechanism 42, and rollers 422 are provided at both ends of the crossbeam 421. The crossbeam 421 can roll on the hanger 43 through the rollers 422, so as to drive the guide vane 2 to move toward the first corner 11. Electric hooks 423 are provided at both ends of the lower surface of the crossbeam 421. The electric hooks 423 can be extended or shortened in the vertical direction through a steel wire, so as to facilitate the lifting of the guide vane 2.

[0068] Specifically, a motor is provided to drive and connect the roller 422 , a guide groove is provided on the hanger 43 for the roller 422 to roll, the guide groove extends toward the first corner 11 , and a lifting ear can be provided above the guide plate 2 for use with the electric hook 423 .

[0069] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A method for installing a wind tunnel guide vane, characterized in that: The steps include: S1. A lifting opening (15) is opened at the top of the wind tunnel, and a lifting frame (4) and a transfer vehicle (3) are arranged in the wind tunnel, wherein one end of the lifting frame (4) in the extension direction is close to the first corner (11) of the wind tunnel, and the transfer vehicle (3) is located directly below the lifting opening (15); S2, hoisting the guide plate (2) outside the wind tunnel so that the guide plate (2) extends in the vertical direction, and placing the guide plate (2) into the wind tunnel along the hoisting opening (15) until the guide plate (2) is placed on the transfer vehicle (3); S3, the transfer vehicle (3) moves until the guide plate (2) is located below the lifting mechanism (42) of the lifting frame (4); S4, the lifting mechanism (42) lifts the guide plate (2) and sets the guide plate (2) vertically, and moves along the extension direction of the lifting frame (4) until the guide plate (2) is located at the first corner (11); S5. Connecting the edges of the guide plate (2) at both ends along the bending direction to the walls of the wind tunnel located on both sides of the first corner (11).

2. The wind tunnel guide vane installation method according to claim 1, characterized in that: After step S5, the method further includes: S6, removing the installed guide plate (2) from the lifting mechanism (42), and moving the lifting mechanism (42) and the transfer vehicle (3) back to their original positions; S7, repeat steps S2 to S4, continue to hoist the plurality of guide plates (2), so that the plurality of guide plates (2) are stacked, the convex surface of the latter guide plate (2) is close to the concave surface of the former guide plate (2), and two adjacent guide plates (2) are welded together.

3. The method for installing a wind tunnel guide vane according to claim 2, characterized in that: After step S7, the method further includes: S8, installing the hanging frame (4) at the second corner (12), the third corner (13) and the fourth corner (14) of the wind tunnel, and repeating steps S2 to S7 until all the guide vanes (2) at the second corner (12), the third corner (13) and the fourth corner (14) are installed.

4. The method for installing a wind tunnel guide vane according to claim 1, characterized in that: Embedded parts (16) are provided on the walls on both sides of the first corner (11), and the guide plate (2) is welded to the embedded parts (16).

5. The method for installing a wind tunnel guide vane according to claim 1, characterized in that: The guide plate (2) comprises an upper part (21) and a lower part (22) connected together in a vertical direction. When the guide plate (2) is hoisted, the lower part (22) and the upper part (21) can be hoisted in sequence.

6. The method for installing a wind tunnel guide vane according to claim 1, characterized in that: The transfer vehicle (3) comprises a chassis (31) and a plurality of limit plates (32), wherein the limit plates (32) are connected to the chassis (31), and the plurality of limit plates (32) are used to be respectively connected to two sides of the curved surface of the guide plate (2).

7. The method for installing a wind tunnel guide vane according to claim 6, characterized in that: There are three limit plates (32), one of which is used to be connected to the vertex of the convex surface of the guide plate (2), and the other two limit plates (32) are used to be connected to the left and right ends of the concave surface of the guide plate (2), respectively.

8. The method for installing a wind tunnel guide vane according to claim 1, characterized in that: The hanging frame (4) comprises a supporting leg (41), a lifting mechanism (42) and a hanger (43); the supporting leg (41) is used for supporting on the ground; the hanger (43) is connected to the supporting leg (41) and is used for extending in a direction toward the first corner (11); and the lifting mechanism (42) is used for moving relative to the hanger (43) along an extending direction of the hanger (43).

9. The method for installing a wind tunnel guide vane according to claim 1, characterized in that: A fixing plate (44) is provided above the hanger (43), and the fixing plate (44) is used to abut against the top of the wind tunnel.

10. The method for installing a wind tunnel guide vane according to claim 8, characterized in that: The lifting mechanism (42) comprises a crossbeam (421), a roller (422) and an electric hook (423); the rollers (422) are provided at both ends of the crossbeam (421); the rollers (422) are rollingly connected to the hanger (43); the two electric hooks (423) are respectively connected to the two ends of the lower surface of the crossbeam (421); and the electric hooks (423) are used to lift the guide vane (2).

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