A method of installing a wind tunnel fence

Abstract

The application provides a wind tunnel fairing installation method, and relates to the technical field of wind tunnels. The wind tunnel fairing installation method comprises the following steps: a hoisting opening is formed in the top of a wind tunnel, and a hoisting frame and a transfer trolley are arranged in the wind tunnel, wherein the transfer trolley is located directly below the hoisting opening; the fairing is hoisted outside the wind tunnel, the fairing extends in the vertical direction, and the fairing is placed on the transfer trolley by being put into the wind tunnel along the hoisting opening; the transfer trolley moves until the fairing is located below a lifting mechanism of the hoisting frame; the lifting mechanism lifts the fairing and moves along the extension direction of the hoisting frame until the fairing is located at the first corner; and the edges of the two ends of the fairing in the bending direction are respectively connected to the walls of the wind tunnel on the two sides of the first corner. The application can successfully install the fairing in the wind tunnel after the wind tunnel is built.

Description

TECHNICAL FIELD

[0001] The present application relates to the wind tunnel technical field, and in particular, to a wind tunnel guide vane installation method. BACKGROUND

[0002] The aerodynamic research basic equipment is an important basic equipment for developing aerospace vehicle research and development, and the large wind tunnel is one of the aerodynamic research basic equipment, which has complex structure and is mainly composed of a concrete tunnel body and various steel structure components inside. The guide vane is one of the main components of the wind tunnel equipment, which is an integral elongated arc-shaped plate with large structure size and is usually installed at four corners of the concrete tunnel body. Since the internal space of the tunnel body is small and the guide vane has large size, the guide vane is usually installed in the construction process of the wind tunnel, but after the wind tunnel is built, the prefabricated guide vane cannot be integrally transported to the inside of the tunnel body and installed in place by using conventional technical methods. SUMMARY

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

[0004] To this end, the present application provides a wind tunnel guide vane installation method, which comprises the following steps:

[0005] S1, a hoisting opening is formed at the top of the wind tunnel, and a hoisting frame and a transfer trolley are arranged inside the wind tunnel, one end of the extension direction of the hoisting frame is close to the first corner of the wind tunnel, and the transfer trolley is located directly below the hoisting opening;

[0006] S2, the guide vane is hoisted outside the wind tunnel, the guide vane is extended in the vertical direction, and the guide vane is put into the wind tunnel along the hoisting opening until the guide vane is placed on the transfer trolley;

[0007] S3, the transfer trolley moves until the guide vane is located below the hoisting mechanism of the hoisting frame;

[0008] S4, the hoisting mechanism hoists the guide vane and makes the guide vane vertically arranged, and moves along the extension direction of the hoisting frame until the guide vane is located at the first corner;

[0009] S5, the edges of both ends of the guide vane in the bending direction are respectively connected to the walls of the wind tunnel on both sides of the first corner.

[0010] Optionally, after step S5, the following step is further included:

[0011] S6, the installed guide vane is detached from the hoisting mechanism, and the hoisting mechanism and the transfer trolley are moved back to the original position;

[0012] S7, repeating steps S2 to S4, continuing to hoist a plurality of the guide vanes, making a plurality of the guide vanes stacked, the convex surface of a subsequent guide vane close to the concave surface of a previous guide vane, and welding adjacent two guide vanes together.

[0013] Optionally, after step S7, further comprising:

[0014] S8, setting the hoisting frame at the second corner, the third corner and the fourth corner of the wind tunnel, and repeating steps S2 to S7 until the installation of all the guide vanes at the second corner, the third corner and the fourth corner is completed.

[0015] Optionally, the wall on both sides of the first corner is provided with a pre-embedded part, and the guide vane is welded with the pre-embedded part.

[0016] Optionally, the guide vane comprises an upper part and a lower part connected together in the vertical direction, and the lower part and the upper part can be hoisted in sequence when hoisting the guide vane.

[0017] Optionally, the transfer trolley comprises a chassis and a plurality of limiting plates, the limiting plates are connected to the chassis, and the plurality of limiting plates are used to be connected to the two sides of the curved surface of the guide vane.

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

[0019] Optionally, the hoisting frame comprises a supporting leg, the hoisting mechanism and a hoisting frame, the supporting leg is used to support the ground, the hoisting frame is connected to the supporting leg and used to extend in the direction towards the first corner, and the hoisting mechanism is used to move relative to the hoisting frame in the extension direction of the hoisting frame.

[0020] Optionally, a fixed plate is arranged above the hoisting frame, and the fixed plate is used to abut against the top of the wind tunnel.

[0021] Optionally, the hoisting mechanism comprises a cross beam, a roller and an electric lifting hook, both ends of the cross beam are provided with the roller, the roller is in rolling connection with the hoisting frame, two electric lifting hooks are connected to the two ends of the lower surface of the cross beam respectively, and the electric lifting hook is used to hoist the guide vane.

[0022] Compared with the prior art, the wind tunnel guide vane installation method has the following advantages:

[0023] The application opens a hoisting opening at the top of a wind tunnel, which is used as an entrance for placing a guide vane into the wind tunnel, and sets a hoisting frame and a transfer trolley in the wind tunnel, one end of the extension direction of the hoisting frame is close to the first corner of the wind tunnel, and the transfer trolley is located directly below the hoisting opening; the guide vane is hoisted outside the wind tunnel, so that the guide vane extends in the vertical direction and is placed into the wind tunnel along the hoisting opening, since the transfer trolley is located directly below the hoisting opening, the guide vane can be placed on the transfer trolley when being placed into the wind tunnel; the guide vane is moved in the wind tunnel by the transfer trolley and moves to below the hoisting frame; the hoisting mechanism on the hoisting frame hoists the guide vane and makes the guide vane vertically arranged, the hoisting mechanism drives the guide vane to move along the extension direction of the hoisting frame to the first corner of the wind tunnel, until the guide vane moves to the first corner; at this time, the edges of the left and right ends of the guide vane in the bending direction are connected to the wind tunnel walls on the two sides of the first corner respectively, and the installation of the guide vane in the wind tunnel is completed, the installation method can successfully install the guide vane with large size in the wind tunnel after the wind tunnel is built. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 One of flow charts of the wind tunnel guide vane installation method of the embodiment of the application;

[0025] Figure 2 The second flow chart of the wind tunnel guide vane installation method of the embodiment of the application;

[0026] Figure 3 The structural schematic diagram of the wind tunnel of the embodiment of the application;

[0027] Figure 4 The structural schematic diagram of the guide vane of the embodiment of the application;

[0028] Figure 5 The second structural schematic diagram of the guide vane of the embodiment of the application;

[0029] Figure 6 The structural schematic diagram of the transfer trolley of the embodiment of the application;

[0030] Figure 7 The structural schematic diagram of the hoisting frame of the embodiment of the application;

[0031] Figure 8 The structural schematic diagram of the hoisting mechanism of the embodiment of the application.

[0032] Explanation of reference signs:

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

[0034] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings.

[0035] It should be noted that in the description of the present application, the directions or positional relationships indicated by "upper", "lower", "left", "right", "top", "bottom", "front", "back", "inner" and "outer" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the devices referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0036] The terms "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0037] Moreover, although the present application is described with reference to specific examples in the present application, it should be understood that these examples are only examples of the principles and applications of the present application. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not deviate from the spirit and scope of the present application defined in the appended claims. It should be understood that different dependent claims and features herein can be combined in ways not described in the original claims. It should also be understood that features described in conjunction with a single embodiment can be used in other embodiments.

[0038] To solve the above problems, as shown in Figure 1 , Figure 3 and Figure 4 , the present application provides a wind tunnel guide vane installation method, comprising the following steps:

[0039] S1, a lifting opening 15 is formed at the top of the wind tunnel, and a lifting frame 4 and a transfer trolley 3 are arranged in the wind tunnel, one end of the extension direction of the lifting frame 4 is close to the first corner 11 of the wind tunnel, and the transfer trolley 3 is located directly below the lifting opening 15;

[0040] S2, hoisting the guide vane 2 outside the wind tunnel to extend the guide vane 2 in the vertical direction and placing the guide vane 2 into the wind tunnel along the hoisting opening 15 until the guide vane 2 is placed on the transfer trolley 3;

[0041] S3, moving the transfer trolley 3 until the guide vane 2 is located below the hoisting mechanism 42 of the hoisting frame 4;

[0042] S4, hoisting the guide vane 2 by the hoisting mechanism 42 to vertically arrange the guide vane 2 and moving the guide vane 2 along the extension direction of the hoisting frame 4 until the guide vane 2 is located at the first corner 11;

[0043] S5, connecting the edges of the two ends of the guide vane 2 in the bending direction to the walls of the wind tunnel on both sides of the first corner 11 respectively.

[0044] In the embodiment, the hoisting opening 15 is formed at the top of the wind tunnel as an entrance for placing the guide vane 2 into the wind tunnel, the hoisting frame 4 and the transfer trolley 3 are arranged in the wind tunnel, one end of the extension direction of the hoisting frame 4 is close to the first corner 11 of the wind tunnel, and the transfer trolley 3 is located directly below the hoisting opening 15; the guide vane 2 is hoisted outside the wind tunnel to extend in the vertical direction, and the guide vane 2 is placed into the wind tunnel along the hoisting opening 15, so that the guide vane 2 can be placed on the transfer trolley 3 when being placed into the wind tunnel; the guide vane 2 is moved in the wind tunnel by the transfer trolley 3 and is moved below the hoisting frame 4; the hoisting mechanism 42 on the hoisting frame 4 hoists the guide vane 2 to vertically arrange the guide vane 2, and the hoisting mechanism 42 drives the guide vane 2 to move along the extension direction of the hoisting frame 4 to the first corner 11 of the wind tunnel until the guide vane 2 moves to the first corner 11; at this time, the edges of the left and right ends of the guide vane 2 in the bending direction are connected to the walls of the wind tunnel on both sides of the first corner 11 respectively to complete the installation of the guide vane 2 in the wind tunnel, and the installation method can successfully install the guide vane 2 with a large size in the wind tunnel after the wind tunnel is built.

[0045] Specifically, when erecting the hoisting frame 4, a scaffold can be erected in the wind tunnel first, the hoisting frame 4 with a height close to the top of the wind tunnel is erected through the scaffold, and the hoisting opening 15 can be formed close to the first corner 11.

[0046] Optionally, as shown in Figure 2 and Figure 5 after step S5, the method further comprises:

[0047] S6, dismounting the installed guide vane 2 from the hoisting mechanism 42, and moving the hoisting mechanism 42 and the transfer trolley 3 back to the original position;

[0048] S7, repeating steps S2 to S4, continuing to hoist multiple guide vanes 2, and stacking the multiple guide vanes 2, with the convex surface of the subsequent guide vane 2 close to the concave surface of the previous guide vane 2, and welding the adjacent two guide vanes 2 together.

[0049] In this embodiment, after the guide vane 2 closest to the first corner 11 is installed, the guide vane 2 is detached from the hoisting mechanism 42, the hoisting mechanism 42 and the transfer trolley 3 are moved back to the original position, and the subsequent multiple guide vanes 2 are hoisted according to steps S2 to S4 outside the wind tunnel, and the subsequent multiple guide vanes 2 are all welded on the previous guide vane 2, the multiple guide vanes 2 are stacked, the convex surface of the subsequent guide vane 2 is close to the concave surface of the previous guide vane 2, and the installation of the multiple guide vanes 2 at the first corner 11 of the wind tunnel is completed.

[0050] Optionally, as shown in Figure 2 and Figure 3 After step S7, it further includes:

[0051] S8, the hoisting frame 4 is arranged at the second corner 12, the third corner 13 and the fourth corner 14 of the wind tunnel, and steps S2 to S7 are repeated until the installation of all the guide vanes 2 at the second corner 12, the third corner 13 and the fourth corner 14 is completed.

[0052] In this embodiment, by arranging the hoisting frames 4 extending towards the second corner 12, the third corner 13 and the fourth corner 14 in the wind tunnel in sequence, and installing the multiple guide vanes 2 at the second corner 12, the third corner 13 and the fourth corner 14 according to the steps of installing the guide vanes 2 at the first corner 11, the installation of the guide vanes 2 at the four corners in the wind tunnel is completed.

[0053] Optionally, the pre-embedded parts 16 are arranged on the walls on both sides of the first corner 11, and the guide vanes 2 are welded with the pre-embedded parts 16.

[0054] In this embodiment, by arranging the pre-embedded parts 16 in the walls on both sides of the first corner 11, part of the pre-embedded parts 16 is located in the wall and part of the pre-embedded parts 16 is located outside the wall, when installing the guide vanes 2, the two sides of the guide vanes 2 in the horizontal direction can be welded on the guide vanes 2 on the walls on both sides of the first corner 11, and the connection between the guide vanes 2 closest to the first corner 11 and the walls on both sides of the first corner 11 is completed.

[0055] Specifically, at the first corner 11, the subsequent guide vanes 2 are directly welded on the previous guide vanes 2, and it is not necessary to arrange the pre-embedded parts 16 to connect the subsequent guide vanes 2.

[0056] Optionally, as shown in Figure 4As shown, the guide vane 2 comprises an upper portion 21 and a lower portion 22 connected together in the vertical direction, and the lower portion 22 and the upper portion 21 can be hoisted in sequence when hoisting the guide vane 2.

[0057] In the embodiment, the guide vane 2 is divided into the upper portion 21 and the lower portion 22 in the vertical direction, and the upper portion 21 and the lower portion 22 are hoisted respectively, so as to reduce the hoisting weight and facilitate hoisting. When installing, the lower portion 22 is hoisted first, and then the upper portion 21 is hoisted after the lower portion 22 is connected to the wall bodies on both sides of the first corner 11, and then the upper portion 21 is connected to the wall bodies on both sides of the first corner 11. After the upper portion 21 and the lower portion 22 are both installed, the upper portion 21 and the lower portion 22 are welded together.

[0058] Optionally, as shown in the figure, Figure 6 The transfer trolley 3 comprises a chassis 31 and a plurality of limiting plates 32, the limiting plates 32 are connected to the chassis 31, and the plurality of limiting plates 32 are used to be connected to the two sides of the curved surface of the guide vane 2 respectively.

[0059] In the embodiment, the chassis 31 is provided as the power source of the transfer trolley 3, and a plurality of limiting plates 32 are arranged on the chassis 31. The chassis 31 can drive the limiting plates 32 to move in the wind tunnel. The plurality of limiting plates 32 form a limiting cavity. When the guide vane 2 is placed on the transfer trolley 3, it can be placed in the limiting cavity. The plurality of limiting plates 32 abut against the two sides of the curved surface of the guide vane 2 in the horizontal plane to limit the guide vane 2, so as to prevent the guide vane 2 from moving randomly.

[0060] Optionally, as shown in the figure, Figure 6 The limiting plates 32 are three, one of which is used to be connected to the vertex of the convex surface of the guide vane 2, and the other two are used to be connected to the left and right ends of the concave surface of the guide vane 2 respectively.

[0061] In the embodiment, the limiting plates 32 are provided as three, one of which is connected to the vertex of the convex surface of the guide vane 2, and the other two are located on one side of the concave surface of the guide vane 2 and connected to the left and right ends of the concave surface of the guide vane 2 in the horizontal direction respectively. Three points determine a plane. The three limiting plates 32 are the minimum number of limiting plates 32 that can limit the random movement of the guide vane 2 on the transfer trolley 3. By providing three limiting plates 32, resource waste is avoided.

[0062] Optionally, as shown in the figure, Figure 7 The hoisting frame 4 comprises a supporting leg 41, a hoisting mechanism 42, and a hoisting frame 43. The supporting leg 41 is used to be supported on the ground. The hoisting frame 43 is connected to the supporting leg 41 and is used to extend in the direction towards the first corner 11. The hoisting mechanism 42 is used to move relative to the hoisting frame 43 in the extension direction of the hoisting frame 43.

[0063] In the embodiment, the plurality of legs 41 stand on the ground, the hanger 43 is connected to the legs 41, the hanger 43 can reach a height facilitating hoisting of the guide vane 2, the hanger 43 is a hollow rectangular frame, the hanger 43 extends towards the first corner 11, the hoisting mechanism 42 is connected to the hanger 43, the hoisting mechanism 42 can move along the extension direction of the hanger 43, after the hoisting mechanism 42 hoists the guide vane 2, the hoisting mechanism 42 drives the guide vane 2 to move along the extension direction of the hanger 43 towards the first corner 11, facilitating movement of the guide vane 2 to the first corner 11.

[0064] Optionally, as shown in Figure 7 the hanger 43 is provided with a fixed plate 44 above the hanger 43, the fixed plate 44 is used to abut against the top of the wind tunnel.

[0065] In the embodiment, the fixed plate 44 is arranged above the hanger 43, the fixed plate 44 abuts against the top of the wind tunnel, the legs 41 and the fixed plate 44 support the hanger 43 from below and above respectively, and the overall structure of the hoisting frame 4 is more stable.

[0066] Optionally, as shown in Figure 8 the hoisting mechanism 42 includes a cross beam 421, a roller 422 and an electric hoist 423, both ends of the cross beam 421 are provided with the roller 422, the roller 422 is in rolling connection with the hanger 43, two electric hoists 423 are connected to both ends of the lower surface of the cross beam 421 respectively, and the electric hoist 423 is used to hoist the guide vane 2.

[0067] In the embodiment, the cross beam 421 is arranged as the main body of the hoisting mechanism 42, both ends of the cross beam 421 are provided with the roller 422, the cross beam 421 can roll on the hanger 43 through the roller 422, facilitating driving of the guide vane 2 to move towards the first corner 11, the lower surface of the cross beam 421 is provided with the electric hoist 423 at both ends, the electric hoist 423 can be elongated or shortened in the vertical direction through a steel wire, and the guide vane 2 is hoisted.

[0068] Specifically, a motor is further arranged in driving connection with the roller 422, a guide groove is arranged on the hanger 43 for rolling of the roller 422, the guide groove extends towards the first corner 11, and an ear is arranged above the guide vane 2 for cooperation with the electric hoist 423.

[0069] Although the present application is disclosed as above, the protection scope of the present application is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and these changes and modifications shall fall within the protection scope of the present application.

Claims

1. A method for installing wind tunnel guide vanes, characterized in that, Includes the following steps: 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 set in the wind tunnel. One end of the hoisting frame (4) is close to the first corner (11) of the wind tunnel, and the transfer vehicle (3) is located directly below the hoisting opening (15). S2. Hoist the guide vane (2) outside the wind tunnel so that the guide vane (2) extends in the vertical direction, and put the guide vane (2) into the wind tunnel along the hoisting port (15) until the guide vane (2) is placed on the transfer vehicle (3); S3. The transfer vehicle (3) moves until the guide plate (2) is below the lifting mechanism (42) of the hoisting frame (4); S4. The lifting mechanism (42) lifts the guide vane (2) and makes the guide vane (2) vertical, and moves it along the extension direction of the lifting frame (4) until the guide vane (2) is located at the first corner (11); S5. Connect the edges of the two ends of the guide vane (2) along the bending direction to the walls on both sides of the wind tunnel located at the first corner (11).

2. The wind tunnel guide vane installation method according to claim 1, characterized in that, The process after step S5 also includes: S6. Remove the installed guide vane (2) from the lifting mechanism (42), and move the lifting mechanism (42) and the transfer vehicle (3) back to their original positions; S7. Repeat steps S2 to S4 to continue hoisting multiple guide vanes (2) so that multiple guide vanes (2) are stacked, with the convex surface of the last guide vane (2) close to the concave surface of the previous guide vane (2), and weld two adjacent guide vanes (2) together.

3. The wind tunnel guide vane installation method according to claim 2, characterized in that, The process after step S7 also includes: S8. The hoisting frame (4) is set at the second corner (12), the third corner (13) and the fourth corner (14) of the wind tunnel, and steps S2 to S7 are repeated until all the guide vanes (2) at the second corner (12), the third corner (13) and the fourth corner (14) are installed.

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

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

6. The wind tunnel guide vane installation method according to claim 1, characterized in that, The transfer vehicle (3) includes a chassis (31) and multiple limiting plates (32). The limiting plates (32) are connected to the chassis (31), and the multiple limiting plates (32) are respectively connected to both sides of the curved surface of the guide plate (2).

7. The wind tunnel guide vane installation method according to claim 6, characterized in that, There are three limiting 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 limiting plates (32) are used to connect to the left and right ends of the concave surface of the guide plate (2) respectively.

8. The wind tunnel guide vane installation method according to claim 1, characterized in that, The hoisting frame (4) includes a support leg (41), a hoisting mechanism (42), and a hanger (43). The support leg (41) is used to support 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 hoisting mechanism (42) is used to move relative to the hanger (43) in the extension direction of the hanger (43).

9. The wind tunnel guide vane installation method according to claim 8, 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 wind tunnel guide vane installation method according to claim 8, characterized in that, The lifting mechanism (42) includes a crossbeam (421), rollers (422) and electric hooks (423). The crossbeam (421) is provided with rollers (422) at both ends. The rollers (422) are tumblingly 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).

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