Wind sensor test structure and wind tunnel

Abstract

The present application discloses a test structure and a wind tunnel for a wind sensor, wherein the test structure includes: a station room having a test space, and a side wall of the station room having a take-out opening; a placement rack located outside the test space and relatively fixed to the station room; an adapter used to install the wind sensor to be tested, and the adapter is placed on the placement rack; a mobile fixed assembly including a mechanical gripper and an automatic fixture, the automatic fixture is arranged in the test space, the mechanical gripper is located in the test space or outside the test space, the mechanical gripper can pass through the take-out opening, the mechanical gripper is used to grab the adapter, put the adapter into the automatic fixture or take it out from the automatic fixture; a sliding door module is used to cover or open the take-out opening. The test structure of the present application can realize automatic installation and removal of the adapter.

Description

Technical Field

[0001] The invention relates to the field of wind sensor testing, and in particular to a test structure and a wind tunnel of a wind sensor. Background Art

[0002] Wind tunnels can perform operations such as testing and calibration of wind sensors. In existing tests, the test piece is manually loaded into the fixture of the wind tunnel test space, which is inefficient. Summary of the invention

[0003] In view of the above problems, the present invention proposes a test structure of a wind sensor and a wind tunnel.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A wind sensor test structure, comprising:

[0006] The station room has a test space, and the side wall of the station room has a take-out opening;

[0007] The placement rack is located outside the test space and is relatively fixed to the stationary room;

[0008] An adapter, used for installing the wind sensor to be tested, the adapter being placed on the placement rack;

[0009] A mobile fixing assembly includes a mechanical gripper and an automatic fixture, wherein the automatic fixture is arranged in the test space, the mechanical gripper is located in the test space or outside the test space, the mechanical gripper can pass through the access opening, and the mechanical gripper is used to grab the adapter and put the adapter into the automatic fixture or take it out of the automatic fixture;

[0010] The sliding door module is used to cover or open the access opening.

[0011] The test structure of the present application can realize automatic installation and removal of the adapter, and its working principle is: the sliding door module works to open the access port, the mechanical gripper works to grab the corresponding adapter on the placement rack, the mechanical gripper puts the adapter into the automatic fixture through the access port, the automatic fixture clamps the adapter, the mechanical gripper resets, the sliding door module works to close the access port; when the adapter of the automatic fixture completes the test in the test space, the sliding door module works to open the access port, the mechanical gripper works to grab the adapter on the automatic fixture, and the mechanical gripper puts the adapter into the placement rack or other location through the access port.

[0012] In one embodiment of the present invention, the adapter includes:

[0013] case;

[0014] A docking seat, which is detachably mounted on the upper part of the housing and is used to mount the wind sensor to be tested;

[0015] A first circuit board is installed in the housing, the first circuit board is used to be electrically connected to the wind sensor to be tested, and the first circuit board has a wireless transmission module;

[0016] The battery is installed in the housing and is used to supply power to the adapter.

[0017] The adapter of the present application is used to connect the wind sensor to be tested, and the shell size is fixed, so it is convenient to design the corresponding clamping structure; the adapter has a wireless transmission module. Compared with the existing wired transmission method, the adapter can transmit the signal of the wind sensor to be tested to the controller of the wind tunnel through the wireless transmission module, avoiding cumbersome wiring operations.

[0018] In one embodiment of the present invention, the first circuit board further has a wireless charging module; the placement rack includes a frame body fixed relative to the stationary chamber, the frame body has at least one support plate, the support plate has a plurality of positioning grooves, the support plate is an insulating plate, and a wireless charger is provided at the bottom of the positioning groove;

[0019] The shell is used to be inserted into the positioning slot, and the wireless charger is used to cooperate with the wireless charging module to charge the battery.

[0020] The frame and the stationary chamber are relatively fixed, so that the position of the positioning groove is determined, and the device to be tested can be installed through the positioning groove, that is, the position of the device to be tested is guaranteed to be determined. The device to be tested can be charged by arranging a wireless charger at the bottom of the positioning groove.

[0021] In one embodiment of the present invention, the automatic clamp includes a support frame and a plurality of clamping blocks evenly distributed around the axis of the support frame, the clamping blocks can reciprocate relative to the support frame, each clamping block and the support frame form a clamping space with a variable size, and the automatic clamp also includes a motor or a cylinder for driving the clamping blocks to reciprocate; a magnet is installed on the support frame;

[0022] A Hall sensor is installed at the bottom of the shell, the Hall sensor is electrically connected to the first circuit board, and the Hall sensor is used to cooperate with the magnet.

[0023] Through the cooperation of the Hall sensor and the magnet, the automatic fixture can automatically determine whether the adapter is in place. In addition, the wireless transmission module can be automatically triggered by the signal change of the Hall sensor.

[0024] In one embodiment of the present invention, it further includes an up-and-down adjustment fixture disposed in the test space of the wind tunnel, and the lower end of the automatic fixture is fixed on the up-and-down adjustment fixture.

[0025] The height of the automatic fixture can be adjusted by adjusting the fixture up and down, and finally the height of the device to be inspected can be adjusted.

[0026] In one embodiment of the present invention, a second circuit board is installed in the support plate, and the second circuit board includes an induction sensor and an indicator light.

[0027] The induction sensor can detect whether there is a device to be tested in the corresponding installation slot, and the detection result of the induction sensor can be indicated by the indicator light. There are many types of induction sensors, such as gravity sensors, photoelectric sensors, etc.

[0028] In one embodiment of the present invention, the sliding door module includes:

[0029] Two moving tracks are respectively arranged on both sides of the taking opening;

[0030] A moving seat, slidably arranged on a moving track;

[0031] Sliding door, both sides are fixed on the moving seats of two moving tracks;

[0032] The driving mechanism is used to drive the movable seat to move back and forth so that the sliding door covers the taking opening or opens the taking opening.

[0033] In one embodiment of the present invention, a sealing strip is fixed to the outer periphery of the taking opening, and the sealing strip cooperates with the sliding door.

[0034] Setting a sealing strip can achieve reliable sealing and ensure the reliability of the test space.

[0035] In one embodiment of the present invention, there are multiple docking sockets, and different docking sockets are used to connect wind sensors of different specifications.

[0036] The application also discloses a wind tunnel, comprising a test structure.

[0037] The beneficial effects of the present invention are as follows: the test structure of the present application can realize automatic installation and removal of the adapter, and its working principle is as follows: the sliding door module works to open the access port, the mechanical gripper works to grab the corresponding adapter on the placement rack, the mechanical gripper puts the adapter into the automatic fixture through the access port, the automatic fixture clamps the adapter, the mechanical gripper resets, the sliding door module works to close the access port; when the adapter of the automatic fixture completes the test in the test space, the sliding door module works to open the access port, the mechanical gripper works to grab the adapter on the automatic fixture, and the mechanical gripper puts the adapter into the placement rack or other positions through the access port. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic diagram of the test structure of Example 1;

[0039] Figure 2 is a schematic diagram of the adapter and wind sensor;

[0040] Figure 3 is a cross-sectional view of the placement rack;

[0041] Figure 4 is a schematic diagram of a placement rack with an adapter placed thereon;

[0042] Figure 5 is a schematic diagram of the automatic fixture;

[0043] Figure 6 It is a top view of the automatic fixture;

[0044] Figure 7 This is a schematic diagram of the sliding door module installed in the resident room;

[0045] Figure 8 is a schematic diagram of a sliding door module;

[0046] Fig. 9 is a schematic diagram of the sealing strip;

[0047] Fig.10 is a schematic diagram of the wind tunnel of Example 1;

[0048] Fig.11 is a schematic structural diagram of the wind tunnel of Example 2;

[0049] Fig.12 It is a schematic diagram of the structure of the debris interception mechanism;

[0050] Fig.13 is a side view of the debris interception mechanism;

[0051] Fig.14 It is a structural diagram of the power mechanism;

[0052] Fig.15 It is a schematic diagram of the damping net installation structure;

[0053] Fig.16 It is an exploded view of the damping net installation structure;

[0054] Fig.17 This is an exploded view of the damping net installation structure from another angle;

[0055] Fig.18 is a cross-sectional view of the fixed frame;

[0056] Fig.19 It is a schematic diagram of the honeycomb installation structure;

[0057] Fig. 20 It is an exploded view of the honeycomb installation structure;

[0058] Fig.21 is a schematic diagram of a first module, a second module and a power mechanism;

[0059] Fig. 22 yes Fig.21 The enlarged view of point A in the middle;

[0060] Fig.23 This is a schematic diagram of the resident room;

[0061] Fig.24 It is a schematic diagram of the station chamber connecting the contraction section and the expansion section respectively;

[0062] Fig.25 It is a schematic diagram of the annular portion of the station chamber.

[0063] The reference numerals in the figures are:

[0064] 1. Debris interception mechanism; 2. Hollow tube body; 3. Interception net; 4. Slag discharge port; 5. Closing plate; 6. Hollow branch pipe; 7. Intermediate pipe; 8. Fixed ring; 9. Ring-shaped part; 10. Handle; 11. Diffuser section; 12. Power mechanism; 13. Power frame; 14. Power motor; 15. Wind cover; 16. Connection port; 17. Air outlet; 18. Vortex blade; 19. Disc body; 20. Blade; 21. Metal mesh; 22. Shock absorber; 23. Flow stabilization section housing; 2 4. rectifier shell; 25. damping net assembly; 26. fixing frame; 27. damping net; 28. metal frame; 29. ​​silicone strip; 30. annular groove; 31. flange; 41. first hollow section; 42. second hollow section; 43. honeycomb assembly; 44. connector; 45. split; 46. first part; 47. second part; 48. first module; 49. second module; 50. first base frame; 51. rectifier section; 52. flow stabilization section; 53. contraction section ; 54, stationary room; 55, second base frame; 56, anti-slip groove; 57, connecting strip; 58, connecting bolt; 59, second threaded hole; 60, body; 61, first plate; 62, second plate; 63, second opening; 64, movable door; 65, inlet and outlet; 66, handle; 67, annular portion; 68, pressure regulating hole; 69, baffle; 70, adapter; 71, placement rack; 72, sliding door module; 73, mobile fixing assembly; 74, shell; 75, docking seat; 7 6. Frame; 77. Support plate; 78. Positioning slot; 79. Wireless charger; 80. Second circuit board; 81. Inductive sensor; 82. Indicator light; 83. Mechanical gripper; 84. Automatic fixture; 85. Test space; 86. Support frame; 87. Clamp block; 88. Clamping space; 89. Up and down adjustment fixture; 90. Moving track; 91. Moving seat; 92. Sliding door; 93. Driving mechanism; 94. Travel sensor; 95. Sealing strip; 96. Wind sensor. DETAILED DESCRIPTION

[0065] The present invention is described in detail below in conjunction with the accompanying drawings.

[0066] Example 1

[0067] like Figure 1 As shown, a test structure of a wind sensor includes:

[0068] The station chamber 54 has a test space 85, and the side wall of the station chamber 54 has a take-out opening (not shown in the figure);

[0069] The placement rack 71 is located outside the test space 85 and is relatively fixed to the stationary chamber 54;

[0070] An adapter 70, used for mounting a wind sensor 96 to be tested, the adapter 70 being placed on a placement frame 71;

[0071] The mobile fixing assembly 73 includes a mechanical gripper 83 and an automatic fixture 84. The automatic fixture 84 is arranged in the test space 85. The mechanical gripper 83 is located in the test space 85 or outside the test space 85. The mechanical gripper 83 can pass through the access opening. The mechanical gripper 83 is used to grab the adapter 70 and put the adapter 70 into the automatic fixture 84 or take it out of the automatic fixture 84.

[0072] The sliding door module 72 is used to cover or open the access opening.

[0073] The test structure of the present application can realize automatic installation and removal of the adapter 70, and its working principle is: the sliding door module 72 works to open the access port, the mechanical gripper 83 works to grab the corresponding adapter 70 on the placement rack 71, the mechanical gripper 83 puts the adapter 70 into the automatic fixture 84 through the access port, the automatic fixture 84 clamps the adapter 70, the mechanical gripper 83 resets, the sliding door module 72 works to close the access port; when the adapter 70 of the automatic fixture 84 completes the test in the test space 85, the sliding door module 72 works to open the access port, the mechanical gripper 83 works to grab the adapter 70 on the automatic fixture 84, and the mechanical gripper 83 puts the adapter 70 into the placement rack 71 or other positions through the access port.

[0074] like Figure 2 As shown, in this embodiment, the adapter 70 includes:

[0075] Housing 74;

[0076] A docking seat 75 , which is detachably mounted on the upper portion of the housing 74 and is used to mount a wind sensor 96 to be tested (such as a wind speed sensor or a wind direction sensor);

[0077] A first circuit board (omitted and not shown in the figure) is installed in the housing 74. The first circuit board is used to be electrically connected to the wind sensor 96 to be tested. The first circuit board has a wireless transmission module;

[0078] A battery (not shown in the figure) is installed in the housing 74 and is used to supply power to the adapter 70 .

[0079] The adapter 70 of the present application is used to connect the wind sensor 96 to be tested, and the size of the shell 74 is fixed, so it is convenient to design the corresponding clamping structure; the adapter 70 has a wireless transmission module. Compared with the existing wired transmission method, the adapter 70 can transmit the signal of the wind sensor 96 to be tested to the controller of the wind tunnel through the wireless transmission module, avoiding cumbersome wiring operations.

[0080] In this embodiment, a Hall sensor (omitted and not shown) is installed at the bottom of the housing 74, and the Hall sensor is electrically connected to the first circuit board. The battery is a rechargeable battery, and a wired charging module and a wireless charging module are installed on the first circuit board.

[0081] In this embodiment, there are multiple docking sockets 75, and different docking sockets 75 are used to connect wind sensors 96 of different specifications. The docking socket 75 is connected to the lower end of the wind sensor 96 to be tested by plugging, clamping, rotating clamping or threading.

[0082] like Figure 3 and 4 As shown, in this embodiment, the placement rack 71 includes a frame body 76 fixed relative to the stationary chamber 54, the frame body 76 has at least one support plate 77, the support plate 77 has a plurality of positioning grooves 78, the support plate 77 is an insulating plate, and a wireless charger 79 is provided at the bottom of the positioning groove 78.

[0083] The housing 74 is used to be inserted into the positioning groove 78, and the wireless charger 79 is used to cooperate with the wireless charging module to charge the battery. The frame 76 is relatively fixed to the stationary chamber 54, so that the position of the positioning groove 78 is determined, and the device to be tested can be installed through the positioning groove 78, that is, the position of the device to be tested is guaranteed to be determined. By arranging the wireless charger 79 at the bottom of the positioning groove 78, the device to be tested can be charged.

[0084] The frame 76 is relatively fixed to the stationary chamber 54 (wind tunnel body), so that the position of the positioning groove 78 is determined, and the device to be tested can be installed through the positioning groove 78, that is, the position of the device to be tested is guaranteed to be determined. The support plate 77 is an insulating plate that can effectively isolate the current. By arranging a wireless charger 79 at the bottom of the positioning groove 78, the device to be tested can be charged.

[0085] like Figure 3 As shown, in this embodiment, a second circuit board 80 is installed in the support plate 77, and the second circuit board 80 includes an inductive sensor 81 and an indicator light 82. The inductive sensor 81 is provided to detect whether there is a device to be tested in the corresponding mounting slot, and the indicator light 82 can indicate the detection result of the inductive sensor 81. The inductive sensor 81 can be of various types, such as a gravity sensor, a photoelectric sensor, and the like.

[0086] In this embodiment, the induction sensor 81 is a photoelectric sensor, and the induction sensor 81 is disposed on the side wall of the positioning groove 78. The indicator light 82 is embedded on the upper surface of the support plate 77.

[0087] like Figure 4 As shown, in this embodiment, there are a plurality of support plates 77, and each support plate 77 is arranged at intervals up and down. The upper and lower interval arrangement can place more devices to be tested.

[0088] like Figure 1 , 5 As shown in 6, the automatic clamp 84 includes a support frame 86 and a plurality of clamping blocks 87 evenly distributed around the axis of the support frame 86. The clamping blocks 87 can reciprocate relative to the support frame 86. Each clamping block 87 and the support frame 86 form a clamping space 88 with a variable size. The automatic clamp 84 also includes a motor or cylinder (omitted and not shown in the figure) for driving the clamping blocks 87 to reciprocate; a magnet (omitted and not shown in the figure) is installed on the support frame 86; and a Hall sensor is used to cooperate with the magnet.

[0089] Through the cooperation of the Hall sensor and the magnet, the automatic clamp 84 can automatically determine whether the adapter 70 is in place. In addition, the wireless transmission module can be automatically triggered to work through the signal change of the Hall sensor.

[0090] like Figure 1 As shown, in this embodiment, a vertical adjustment fixture 89 is also included in the test space 85 of the wind tunnel, and the lower end of the automatic fixture 84 is fixed on the vertical adjustment fixture 89. The height of the automatic fixture 84 can be adjusted by the vertical adjustment fixture 89, and finally the height of the device to be tested can be adjusted.

[0091] like Figure 5 As shown, in this embodiment, there are four clamping blocks 87 .

[0092] like Figure 7 and 8 As shown, the sliding door module 72 includes:

[0093] Two movable tracks 90 are respectively arranged on both sides of the taking opening;

[0094] A movable seat 91 is slidably arranged on the movable track 90;

[0095] The sliding door 92 is fixed on two moving seats 91 of the two moving rails 90 on both sides;

[0096] The driving mechanism 93 is used to drive the movable seat 91 to move back and forth, so that the sliding door 92 covers the taking opening or opens the taking opening.

[0097] like Fig. 9As shown, in this embodiment, a sealing strip 95 is fixed to the outer periphery of the taking port, and the sealing strip 95 cooperates with the sliding door 92. The sealing strip 95 can achieve reliable sealing and ensure the reliability of the test space 85.

[0098] In actual use, the driving mechanism 93 may include a screw rod rotatably mounted on the moving track 90 and a driving motor for driving the screw rod to rotate, and the moving seat 91 has a first threaded hole that cooperates with the screw rod.

[0099] In actual use, the driving mechanism 93 may include a driving motor, a transmission wheel set and a transmission belt installed on the transmission wheel set. The movable seat 91 is fixed to the transmission belt. The driving motor is used to drive at least one transmission wheel of the transmission wheel set to rotate.

[0100] like Figure 7 As shown, in this embodiment, a travel sensor 94 is installed at the moving track 90, and the travel sensor 94 is used to detect the moving position of the sliding door 92. The travel sensor 94 is a photoelectric sensor or a micro switch. The travel sensor 94 can accurately control the position of the sliding door 92.

[0101] In actual use, for the convenience of observation, in this embodiment, the main body 60 includes a plurality of transparent side panels. The sliding door 92 is a transparent panel.

[0102] like Fig.10 As shown, the present application also discloses a wind tunnel, including the test structure of the present embodiment, and also including a contraction section 53 and a diffusion section 11 connected to the front end of the stationary chamber 54 .

[0103] Example 2

[0104] This embodiment discloses Fig.11 As shown, a wind tunnel includes a flow straightening section 51, a flow stabilizing section 52, a contraction section 53, a pressure diffuser section 11 and a power mechanism 12 which are arranged in sequence.

[0105] like Fig.11 , 12 As shown in Figure 13, the wind tunnel also includes a debris interception mechanism 1, including a hollow tube body 2 and an interception net 3 fixed on the hollow tube body 2, the interception net 3 is used to intercept debris and prevent the debris from passing through the hollow tube body 2; the side wall of the hollow tube body 2 has a slag discharge port 4, the slag discharge port 4 is located at the front and lower side of the interception net 3, and a sealing plate 5 is installed at the slag discharge port 4.

[0106] The interception net 3 can effectively intercept the debris and prevent it from entering other parts of the wind tunnel; the slag discharge port 4 and the sealing plate 5 can facilitate the discharge of the intercepted debris.

[0107] In actual use, preferably, there are multiple interception nets 3, each interception net 3 is distributed in sequence, and the side wall of the hollow tube 2 has a slag discharge port 4 below the front side of each interception net 3. The provision of multiple interception nets 3 can achieve more reliable interception.

[0108] In actual use, preferably, the aperture of the interception net 3 at the rear side is smaller than the aperture of the adjacent interception net 3 at the front side. The interception efficiency can be effectively improved through multi-level interception.

[0109] In this embodiment, there are two intercepting nets 3, each having square holes. The aperture range of the square holes of the intercepting net 3 located on the front side is 80mm*80mm~100mm*100mm, and the aperture range of the square holes of the intercepting net 3 located on the rear side is 50mm*50mm~70mm*70mm.

[0110] like Fig.12 As shown, in this embodiment, the hollow tube body 2 has a plurality of hollow branch pipes 6 , an interception net 3 is fixed to the rear end of each hollow branch pipe 6 , and two adjacent hollow branch pipes 6 are directly connected or connected through an intermediate pipe 7 .

[0111] like Fig.13 As shown, in this embodiment, a fixing ring 8 is also included, and the end of the hollow branch pipe 6 has an annular portion 9 extending outward, and the periphery of the intercepting net 3 is located between the fixing ring 8 and the annular portion 9. The fixing ring 8 is fixed to the annular portion 9 by fasteners to tighten the intercepting net 3.

[0112] In actual use, one end of the sealing plate 5 is rotatably mounted on the hollow tube body 2, and the other end is fixed to the hollow tube body 2 by magnetic attraction, clamping or fasteners. This structure of the sealing plate 5 is convenient for opening and closing.

[0113] like Fig.12 As shown, in this embodiment, the outer side wall of the sealing plate 5 has a handle 10 .

[0114] In this embodiment, preferably, the debris interception mechanism 1 is located at the rear end of the diffuser section 11 .

[0115] like Fig.11 and 14 As shown, the power mechanism 12 of this embodiment includes:

[0116] Power rack 13;

[0117] A power motor 14 is fixed on the power frame 13;

[0118] A hollow wind cover 15 is arranged on the power frame 13. The front end of the wind cover 15 has a connection port 16, which is used to connect to the diffuser section 11 of the wind tunnel. The rear end of the wind cover 15 is opposite to the output end (not shown in the figure) of the power motor 14. The side end of the wind cover 15 has an air outlet 17.

[0119] The vortex blades 18 are arranged in the wind cover 15 and face the connecting port 16 , and are fixed to the output shaft (not shown) of the power motor 14 . When the vortex blades 18 rotate, air enters from the connecting port 16 and is discharged from the air outlet 17 .

[0120] When the power mechanism 12 is working, air enters from the connection port 16 and is discharged from the air outlet 17 at the side end of the wind cover 15. The air will not pass through the power motor 14, which can effectively prevent debris from entering the power motor 14, and the entire power mechanism 12 is more stable and reliable.

[0121] like Fig.11 As shown, in this embodiment, the vortex blade 18 includes a disk body 19 and a plurality of blades 20 . The blades 20 are disposed on the edge of the disk body 19 and are evenly distributed around the axis of the disk body 19 .

[0122] like Fig.14 As shown, in this embodiment, a metal mesh 21 is installed at the air outlet 17. The metal mesh 21 can improve safety, prevent external objects from entering the air cover 15 through the air outlet 17, and filter debris. In actual use, preferably, the metal mesh 21 is detachably installed on the air cover 15 by fasteners.

[0123] like Fig.14 As shown, in this embodiment, a plurality of shock absorbing devices 22 are installed at the lower part of the power frame 13. The shock absorbing devices 22 can effectively reduce vibration and improve the working environment.

[0124] In this embodiment, the flow stabilizing section 52 includes a flow stabilizing section housing 23 , the flow straightening section 51 includes a flow straightening section housing 24 , and the flow straightening section housing 24 includes a first hollow section 41 and a second hollow section 42 .

[0125] The wind tunnel of this embodiment also includes a damping net 27 installation structure, such as Fig.15 , 16 As shown in FIG. 17 , the damping net 27 installation structure includes a flow stabilizing section housing 23, a flow rectifying section housing 24, and a damping net assembly 25 located between the flow stabilizing section housing 23 and the flow rectifying section housing 24. The damping net assembly 25 includes a fixing frame 26, a damping net 27, and a metal frame 28 arranged in sequence. The fixing frame 26 and the metal frame 28 are pressed and fixed to each other, and the damping net 27 is limited in the middle. The end of the flow stabilizing section housing 23 is docked with the fixing frame 26, and the end of the flow rectifying section housing 24 is docked with the metal frame 28. The damping net 27 can be pressed and fixed in advance by the fixing frame 26 and the metal frame 28, so that the flatness of the damping net 27 can be ensured, and the damping net 27 can be conveniently installed between the flow stabilizing section housing 23 and the flow rectifying section housing 24.

[0126] In this embodiment, the fixing frame 26 is made of plastic.

[0127] like Fig.16 and 18 As shown, in this embodiment, a silicone strip 29 is bonded to the end of the flow stabilizing section housing 23 along the circumferential direction, and an annular groove 30 is provided at one end of the fixing frame 26 facing the flow stabilizing section housing 23, and the silicone strip 29 is embedded in the annular groove 30. The silicone strip 29 and the annular groove cooperate with each other to facilitate the positioning and installation of the damping net assembly 25, and to make the damping net 27 better tensioned to ensure flatness.

[0128] In this embodiment, the material of the fixing frame 26 is PP.

[0129] In this embodiment, the metal frame 28 is made of steel.

[0130] In this embodiment, the damping mesh 27 is a steel mesh.

[0131] like Fig.16 As shown, in this embodiment, both the end of the flow stabilizing section housing 23 and the end of the flow straightening section housing 24 have a flange portion 31 , and the flow stabilizing section housing 23 and the flow straightening section housing 24 are fixed by bolts passing through the flange portion 31 .

[0132] In this embodiment, the bolts pass through the fixing frame 26 and the metal frame 28 .

[0133] The wind tunnel of this embodiment also includes a honeycomb mounting structure, such as Fig.19 and 20 As shown, the honeycomb mounting structure includes a first hollow section 41, a second hollow section 42 and a honeycomb assembly 43 clamped and fixed between the first hollow section 41 and the second hollow section 42. The honeycomb assembly 43 includes a connecting piece 44 and a plurality of split bodies 45. Each split body 45 is laid out in sequence. The connecting piece 44 is located between two adjacent split bodies 45 and is fixed to the corresponding two split bodies 45. Both ends of the connecting piece 44 are located between the first hollow section 41 and the second hollow section 42.

[0134] The split 45 structure can effectively reduce the volume of a single split 45 and is easy to process; the two splits 45 can be connected by a connecting piece 44, and both ends of the connecting piece 44 are located between the first hollow section 41 and the second hollow section 42. The connecting piece 44 can improve the force effect of the split 45, and the entire honeycomb assembly 43 is not easily deformed.

[0135] like Fig. 20 As shown, in this embodiment, the connector 44 is T-shaped, and has a first portion 46 and a second portion 47 that are perpendicular to each other, the first portion 46 is located between the side walls of the corresponding two split bodies 45, and the second portion 47 is respectively in contact with the end faces of the corresponding two split bodies 45. The connector 44 is T-shaped, which can reliably fix the two split bodies 45, and the windshield area can be set to be smaller.

[0136] In this embodiment, the connecting member 44 is an aluminum profile.

[0137] In actual use, the connecting member 44 is fixed to the split body 45 via a fastener, or the connecting member 44 is fixed to the split body 45 by bonding.

[0138] In this embodiment, there are two split bodies 45 .

[0139] like Fig.19 As shown, in this embodiment, both the end of the first hollow section 41 and the end of the second hollow section 42 have a flange portion 31 , and the first hollow section 41 and the second hollow section 42 are fixed by bolts passing through the flange portion 31 .

[0140] The wind tunnel of this application is a modular wind tunnel, such as Fig.21 As shown, the wind tunnel can be divided into a first module 48, a second module 49 and a power mechanism 12. The first module 48 includes a first base frame 50 and a straightening section 51, a flow stabilizing section 52, a contraction section 53 and a stationary chamber 54 for experiments which are installed on the first base frame 50 and connected in sequence; the second module 49 includes a second base frame 55 and a diffuser section 11 installed on the second base frame 55.

[0141] The wind tunnel is divided into three parts. This modular split 45-type structure is easy to transport, and after arriving at the destination, the installation workload is also small. It is only necessary to connect the first module 48 with the second module 49, and the second module 49 with the power mechanism 12.

[0142] like Fig. 22 As shown, in this embodiment, the first pedestal 50 and the second pedestal 55 are both provided with anti-slip grooves 56 along their length direction, and the anti-slip grooves 56 of the first pedestal 50 and the anti-slip grooves 56 of the second pedestal 55 are matched one by one, and the modular wind tunnel also includes a connecting strip 57 and a connecting bolt 58, the connecting strip 57 has a second threaded hole 59, and the two ends of the connecting strip 57 are respectively inserted into the corresponding anti-slip grooves 56 of the first pedestal 50 and the second pedestal 55, and the connecting bolt 58 is screwed into the corresponding second threaded hole 59, so that the connecting strip 57 is fixed in the corresponding anti-slip groove 56. This connection structure of the first pedestal 50 and the second pedestal 55 is convenient and reliable.

[0143] like Fig.23 As shown, the stationary chamber 54 of this embodiment is located between the contraction section 53 and the diffuser section 11, and the stationary chamber 54 includes a hollow body 60, and the body 60 has a first plate 61 and a second plate 62 that are relatively arranged, and the middle part of the first plate 61 has a first opening (not marked in the figure) that is connected to the contraction section 53, and the middle part of the second plate 62 has a second opening 63 that is connected to the diffuser section 11, and the body 60 also has at least one openable movable door 64.

[0144] The internal space of the stationary chamber 54 of the present application is large and is no longer limited by the size of the ends of the contraction section 53 and the diffusion section 11. The movable door 64 can facilitate personnel to operate inside the main body 60, such as installing or adjusting the instrument to be tested, which is more convenient during wind tunnel testing.

[0145] In this embodiment, the main body 60 is a cubic structure.

[0146] like Fig.23 and 24 As shown, in this embodiment, the side end of the body 60 has an inlet and outlet 65 , and one end of a movable door 64 is rotated on the body 60 to open or close the inlet and outlet 65 .

[0147] In actual use, the movable end of the movable door 64 is fixed to the movable door 64 by means of a latch or magnetic attraction.

[0148] like Fig.23 As shown, in this embodiment, the movable door 64 has a handle 66 .

[0149] like Fig.23 , 24 As shown in FIG. 25 , in this embodiment, the second plate 62 has an annular portion 67 extending toward the inside of the body 60, and the side wall of the annular portion 67 has a pressure regulating hole 68, and a baffle 69 is detachably mounted on the pressure regulating hole 68. By adjusting the baffle 69, the pressure regulation function can be achieved to ensure that the pressure in the stationary chamber 54 meets the test conditions.

[0150] In actual use, the resident chamber of this embodiment can be used in Example 1 as the resident chamber of Example 1.

[0151] In actual application, the test structure of Example 1 can be applied to the wind tunnel of this embodiment. More specifically, the test structure of Example 1 is used to replace the stationary chamber 54 of this embodiment.

[0152] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention and the drawings, directly or indirectly used in other related technical fields, is also included in the protection scope of the present invention.

Claims

1. A wind sensor test structure, characterized in that: include: The station room has a test space, and the side wall of the station room has a take-out opening; The placement rack is located outside the test space and is relatively fixed to the stationary room; An adapter, used for installing the wind sensor to be tested, the adapter being placed on the placement rack; A mobile fixing assembly includes a mechanical gripper and an automatic fixture, wherein the automatic fixture is arranged in the test space, the mechanical gripper is located in the test space or outside the test space, the mechanical gripper can pass through the access opening, and the mechanical gripper is used to grab the adapter and put the adapter into the automatic fixture or take it out of the automatic fixture; A sliding door module, used for covering or opening the access opening; The automatic clamp comprises a support frame and a plurality of clamping blocks evenly distributed around the axis of the support frame, the clamping blocks can reciprocate relative to the support frame, each clamping block and the support frame form a clamping space with a variable size, and the automatic clamp also comprises a motor or a cylinder for driving the clamping blocks to reciprocate; a magnet is installed on the support frame; The adapter comprises: a housing; a docking seat, which is detachably mounted on the upper part of the housing and is used to mount the wind sensor to be tested; A Hall sensor is installed at the bottom of the housing, the Hall sensor is electrically connected to the first circuit board, and the Hall sensor is used to cooperate with the magnet; It also includes an up-and-down adjustment fixture arranged in the test space of the wind tunnel, and the lower end of the automatic fixture is fixed on the up-and-down adjustment fixture; There are multiple docking sockets, and different docking sockets are used to connect wind sensors of different specifications.

2. The wind sensor test structure according to claim 1, characterized in that: The adapter also includes: A first circuit board is installed in the housing, the first circuit board is used to be electrically connected to the wind sensor to be tested, and the first circuit board has a wireless transmission module; The battery is installed in the housing and is used to supply power to the adapter.

3. The wind sensor test structure according to claim 2, characterized in that: The first circuit board also has a wireless charging module; the placement rack includes a frame body fixed relative to the stationary chamber, the frame body has at least one support plate, the support plate has a plurality of positioning grooves, the support plate is an insulating plate, and a wireless charger is arranged at the bottom of the positioning groove; The shell is used to be inserted into the positioning slot, and the wireless charger is used to cooperate with the wireless charging module to charge the battery.

4. The wind sensor test structure according to claim 3, characterized in that: A second circuit board is installed in the support plate, and the second circuit board includes an induction sensor and an indicator light.

5. The wind sensor test structure according to claim 1, characterized in that: The sliding door module comprises: Two moving tracks are respectively arranged on both sides of the taking opening; A moving seat, slidably arranged on a moving track; Sliding door, both sides are fixed on the moving seats of two moving tracks; The driving mechanism is used to drive the movable seat to move back and forth so that the sliding door covers the taking opening or opens the taking opening.

6. The wind sensor test structure according to claim 5, characterized in that: A sealing strip is fixed on the outer periphery of the taking port, and the sealing strip cooperates with the sliding door.

7. A wind tunnel, characterized in that: A test structure comprising any one of claims 1 to 6.

Images