General testing device for large-aperture antenna array plane

Abstract

The invention belongs to the technical field of antenna array surface testing, and discloses a general testing device for a large-aperture antenna array surface, which is formed by splicing a plurality of general testing modules, and is characterized in that each general testing module comprises a frame body, and the frame body is provided with an array surface mounting assembly, an array surface heat dissipation assembly and a module locking assembly; the array surface mounting assembly comprises guide rails and a lifting device, the guide rails comprise a plurality of vertical guide rails and horizontal guide rails, the horizontal guide rails are arranged on the vertical guide rails in a lifting manner through the lifting device, the horizontal guide rails are provided with adjusting modules used for mounting antenna array surfaces, and the array surface heat dissipation assembly provides heat dissipation air for the antenna array surfaces. The module locking assembly is installed on the side face of the bottom of the frame body and comprises an adjusting pull rod and a ground rail locking device, the adjusting pull rod locks the adjacent universal test modules, and the ground rail locking device fixes the frame body and the ground rail. The universal test device can meet the test of antenna array surfaces with different specifications and sizes, especially large-aperture antenna array surfaces.

Description

Technical Field

[0001] This invention belongs to the field of antenna array testing technology, and mainly relates to a general testing device for large-aperture antenna arrays. Background Technology

[0002] As the aperture of antenna arrays increases, if antenna testing devices are still manufactured according to the original design concept, they will be too long, heavy, and have poor transportability. They also cannot meet the requirements of multi-degree-of-freedom adjustment of the array during anechoic chamber testing. Furthermore, due to the different specifications and dimensions of antenna arrays, it is necessary to design and manufacture multiple testing devices with the same function and similar structure but different sizes, resulting in a huge waste of testing costs and inconvenience for on-site equipment management.

[0003] Therefore, there is an urgent need for a testing device suitable for antenna arrays of different sizes and specifications, so as to realize the testing of antenna arrays of different sizes, especially large-aperture antenna arrays. Summary of the Invention

[0004] To address the problems in the prior art, this invention proposes a universal testing device for large-aperture antenna arrays. This device employs multiple identical universal testing modules assembled in a modular fashion to meet the testing and transportation needs of large-aperture antenna arrays. Furthermore, for antenna arrays of different sizes, the corresponding fixed installation position of the antenna array can be adjusted to achieve testing of antenna arrays of different sizes, especially large-aperture ones.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] A universal testing device for large-aperture antenna arrays is assembled from multiple universal testing modules. Each universal testing module includes a frame body, on which array mounting components, array heat dissipation components, and module locking components are mounted. The array mounting components include guide rails and a lifting device. The guide rails include multiple vertical and horizontal guide rails. The horizontal guide rails are vertically and flexibly mounted on the vertical guide rails via the lifting device. The horizontal guide rails are equipped with adjustment modules for mounting the antenna array. The array heat dissipation components provide cooling air to the antenna array. The module locking components are mounted on the side of the bottom of the frame body and include an adjusting rod and a ground rail locking device. The adjusting rod locks adjacent universal testing modules, and the ground rail locking device fixes the frame body and the ground rail.

[0007] Furthermore, the adjusting rod is a positive and negative threaded rod, and the ground rail locking device includes a ground rail transition block, a latch, and a horizontal locking assembly. The ground rail transition block is installed at the bottom of the frame body, and the latch is a heavy-duty bolt-type quick latch that locks the ground rail transition block and the frame base. The horizontal locking assembly includes a horizontal locking plate, a spring, and a ground rail locker. The horizontal locking plate is horizontally movable and installed on the side of the ground rail transition block via an adjusting screw. The spring is sleeved on the adjusting screw and limited between the ground rail transition block and the horizontal locking plate. The ground rail locker is located on the bottom surface of the horizontal locking plate for locking with the ground rail.

[0008] Furthermore, the vertical guide rail is vertically mounted on the frame body via a guide rail mounting plate. The horizontal guide rail is installed in two ways: one is to fix it horizontally to the frame body via a guide rail mounting plate, and the other is to fix it to the first slider on the vertical guide rail via a guide rail mounting plate. The guide rail mounting plate is provided with threaded holes at intervals, and the flatness of the vertical and horizontal guide rails is adjusted with the fastening screws.

[0009] Furthermore, both ends of the horizontal guide rail are foldable.

[0010] Furthermore, the horizontal guide rail is provided with multiple second sliders, and the adjustment module is mounted on the second sliders.

[0011] Furthermore, the adjustment module includes a base plate, a transition plate, an L-shaped limiting plate, and a product connecting plate. The base plate is fixed to the second slider, and a slide rail lock is provided on the base plate to fix the position of the adjustment module on the horizontal guide rail. The transition plate is installed on the base plate, and the L-shaped limiting plate and the product connecting plate are both installed on the transition plate. The gap between the L-shaped limiting plate and the product connecting plate is adjusted by fine-tuning screws.

[0012] Furthermore, the lifting device includes an electric winch, fixed pulleys, and a steel wire rope. The electric winch is located at the bottom of the frame body. There is a pair of fixed pulleys, one above the other, located at the top and bottom of the frame body respectively. A lifting ring is set at the midpoint of the horizontal guide rail. One end of the steel wire rope is fixed to the lifting ring, and the other end passes through the fixed pulley at the top and the fixed pulley at the bottom in sequence, and then connects to the electric winch at the bottom. The electric winch uses the steel wire rope to pull the horizontal guide rail up and down to adjust its position through the fixed pulleys.

[0013] Furthermore, the array heat dissipation assembly includes a bottom fan, a long fan, and side fans. The bottom fan is located at the bottom of the frame body and has an upward-opening air guide shroud. There are multiple long fans, which are horizontally arranged in the middle section of the frame body. There are multiple side fans, which are detachably installed on both sides of the frame body through an angle adjustment device.

[0014] Furthermore, the angle adjustment device includes a hook, a rotating shaft, a knurled nut, and an equidistant toothed plate. One end of the hook is rotatably mounted on the side wall of the frame body, and the other end is rotatably connected to the equidistant toothed plate. The equidistant toothed plate is provided with multiple slots. The rotating shaft is set on the side wall of the frame body, and the knurled nut is set at the end of the rotating shaft. The side fan is mounted on the hook. When the side fan is adjusted to a suitable angle, the rotating shaft is engaged with the corresponding slot on the equidistant toothed plate, and the knurled nut is tightened to fix the side fan.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This invention, by setting a movable horizontal guide rail and a slider on the horizontal guide rail, allows for the replacement of different adjustment modules, which can meet the testing needs of antenna arrays of different specifications and sizes, and has broad application prospects.

[0017] 2. This invention uses multiple modular universal test modules that can be spliced ​​together to solve the problem of transporting large-aperture antenna array test devices. It can integrate parts into a whole or break the whole into parts. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the adjustment module of the present invention.

[0020] Figure 3 This is a front view of the adjustment module of the present invention.

[0021] Figure 4 This is a schematic diagram of the lifting device of the present invention.

[0022] Figure 5 This is a schematic diagram of the angle adjustment device of the present invention.

[0023] Figure 6 This is a schematic diagram of the module locking component of the present invention.

[0024] Among them: 1. Frame body; 1-1. Frame base; 1-2. Frame support;

[0025] 2. Vertical guide rail;

[0026] 3. Horizontal guide rail;

[0027] 4. Guide rail mounting plate; 4-1. Fastening threaded holes;

[0028] 5. Adjustment module; 5-1. Base plate; 5-2. Transition plate; 5-3. L-shaped limiting plate; 5-4. Product connecting plate; 5-5. Fine-tuning screw;

[0029] 6. Slide rail locking device;

[0030] 7. Lifting device; 7-1. Electric winch; 7-2. Fixed pulley; 7-3. Steel wire rope;

[0031] 8. Bottom fan;

[0032] 9. Long fan;

[0033] 10. Side fan;

[0034] 11. Angle adjustment device; 11-1. Hook; 11-2. Knurled nut; 11-3. Equidistant toothed plate;

[0035] 12. Adjusting lever;

[0036] 13. Ground track transition block;

[0037] 14. Lock;

[0038] 15. Horizontal locking plate;

[0039] 16. Spring;

[0040] 17. Ground rail lock;

[0041] 18. Fall arrestor. Detailed Implementation

[0042] The specific embodiments of the present invention will be further explained below with reference to the accompanying drawings.

[0043] like Figures 1-6 As shown, this is a general-purpose test device for large-aperture antenna arrays, which is composed of multiple general-purpose test modules. Each general-purpose test module has the same structure. When testing large-aperture antenna arrays, the multiple general-purpose test modules are assembled side by side in a modular way, which can meet the testing needs of various types of large-aperture antenna arrays.

[0044] The general test module includes a frame body 1, on which array mounting components, array heat dissipation components and module locking components are provided.

[0045] The frame body 1, which serves as the foundation of the entire test device, includes a frame base 1-1 and a frame support 1-2. The overall structure is a steel frame, and its side view has a trapezoidal structure that is narrower at the top and wider at the bottom. This structure is more conducive to maintaining the stability of the test device after the antenna array to be tested is installed.

[0046] The array mounting assembly includes guide rails and a lifting device 7. The guide rails include multiple vertical guide rails 2, multiple horizontal guide rails 3, and multiple guide rail mounting plates 4 that are compatible with both the vertical guide rails 2 and the horizontal guide rails 3. The vertical guide rails 2 are vertically mounted on the frame body 1 via the guide rail mounting plates 4. The horizontal guide rails 3 can be installed in two ways: one is to fix them horizontally to the frame body 1 via the guide rail mounting plates 4, and the other is to fix them to a first slider on the vertical guide rail 2 via the guide rail mounting plates 4. The first slider is mounted on the vertical guide rail 2 and drives the horizontal guide rails 3 to slide up and down along the vertical guide rail 2. The guide rail mounting plates 4 are provided with spaced fastening threaded holes 4-1, which, together with fastening screws, adjust the flatness of the vertical guide rails 2 and the horizontal guide rails 3 when the universal testing device is used for the first time.

[0047] The two ends of the horizontal guide rail 3 are foldable. When testing a narrower antenna array, the two ends of the horizontal guide rail 3 can be folded, and when testing a wider antenna array, the two ends of the horizontal guide rail 3 can be unfolded, further expanding the versatility of antenna array testing.

[0048] The horizontal guide rail 3 is provided with multiple second sliders, and the second sliders are equipped with multi-angle adjustable adjustment modules 5 for installing antenna arrays of different specifications and sizes. The adjustment module 5 includes a base plate 5-1, a transition plate 5-2, an L-shaped limiting plate 5-3, and a product connecting plate 5-4. The base plate 5-1 is fixed to the second sliders and is provided with a slide rail lock 6 for fixing the position of the adjustment module 5 on the horizontal guide rail 3. The transition plate 5-2 is installed on the base plate 5-1. The L-shaped limiting plate 5-3 and the product connecting plate 5-4 are both installed on the transition plate 5-2. The gap between the L-shaped limiting plate 5-3 and the product connecting plate 5-4 is adjusted by fine-tuning screws 5-5. The two edges of the transition plate 5-2 are installed on the side, bottom, or top edge of the transition plate 5-3, serving as the limit for the fine-tuning of the product connecting plate 5-4 on the transition plate 5-2. The product connecting plate 5-4 is fine-tunable on the transition plate 5-2, and its gap with the L-shaped limiting plate 5-3 can be adjusted and fixed by setting shims. During installation, loosen the fine-tuning screw 5-5 to adjust the gap between the L-shaped limiting plate 5-3 and the product connecting plate 5-4, select a shim of appropriate thickness and place it in the gap between the two, and then tighten the fine-tuning screw 5-5 to fix the L-shaped limiting plate 5-3 and the product connecting plate 5-4 to meet the fine-tuning adjustment of the installation position of the antenna array. The product connecting plate 5-4 is also provided with edge protrusions for limiting the antenna array to be installed.

[0049] The lifting device 7 is used to adjust the height of the horizontal guide rail 3. It includes an electric winch 7-1, fixed pulleys 7-2, and a wire rope 7-3. The electric winch 7-1 is mounted on the frame base 1-1 of the frame body 1. The fixed pulleys 7-2 are a pair, one above the other, located at the top and bottom of the frame body 1 respectively. A lifting ring is set at the midpoint of the horizontal guide rail 3. One end of the wire rope 7-3 is fixed to the lifting ring, and the other end passes sequentially upward through the upper fixed pulley 7-2, downward through the bottom fixed pulley 7-2, and then connects to the electric winch 7-1 at the bottom. The electric winch 7-1 uses the wire rope 7-3 to pull the horizontal guide rail 3 up and down to adjust its position via the fixed pulleys 7-2. When multiple horizontal guide rails 3 are lifted using the same wire rope, they can be manually switched as needed.

[0050] A fall arrestor 18 is suspended from the top of the frame body 1. The fall arrestor 18 is connected to a horizontal guide rail 3 that can slide up and down via a steel wire rope to prevent sudden falls from causing safety hazards.

[0051] The array heat dissipation assembly includes a bottom fan 8, a long fan 9, and side fans 10. The bottom fan 8 is mounted on the frame base 1-1 and has an upward-opening air guide shroud to blow air upwards from the bottom. Multiple long fans 9 are arranged horizontally in the middle section of the frame body. Multiple side fans 10 are also included and are detachably mounted on both sides of the frame body via an angle adjustment device 11. The angle adjustment device 11 includes a hook 11-1, a rotating shaft, a knurled nut 11-2, and an equidistant toothed plate 11-3. The hook 11-1 is used to mount the side fans 10, and one end is rotatably mounted on the side wall of the frame body. The other end is rotatably connected to an equidistant toothed plate 11-3. The equidistant toothed plate 11-3 has multiple slots. The rotating shaft is set on the side wall of the frame body. The knurled nut 11-2 is set at the end of the rotating shaft. After the side fan 10 is adjusted to a suitable angle, the rotating shaft is inserted into the corresponding slot on the equidistant toothed plate 11-3. Then, the knurled nut 11-2 is tightened directly to fix the hook 11-1. This allows for quick adjustment of the position and angle of the side fan 10 to meet the heat dissipation requirements of antenna arrays of different sizes during full-load testing. In addition, the bottom fan 8, the long fan 9, and the side fan 10 are all equipped with speed controllers to control the wind speed to meet the heat dissipation effect.

[0052] The module locking assembly is installed on the frame base 1-1 and includes an adjusting rod 12 and a ground rail locking device. When multiple general test modules are assembled together, they need to be placed on a ground rail (not shown in the figure) with high requirements for levelness and parallelism to ensure the installation accuracy of each general test module.

[0053] The adjusting rod 12 is a positive and negative threaded rod, which is installed at the center of the side of the frame base 1-1. The distance between the two general test modules can be adjusted and locked by tightening the positive and negative threaded adjusting rod 12 with a wrench.

[0054] The ground rail locking device is used to fix the universal test module at any position on the ground rail. It includes a ground rail transition block 13, a latch 14, and a horizontal locking assembly. The ground rail transition block 13 is installed at the bottom of the frame base 1-1. The latch 14 is a heavy-duty bolt-type quick-lock latch 14 used to lock the ground rail transition block 13 and the frame base 1-1. The horizontal locking assembly includes a horizontal locking plate 15, a spring 16, and a ground rail locker 17. The horizontal locking plate 15 is horizontally movable and installed on the ground rail transition block via an adjusting screw. On the side of 13, spring 16 is sleeved on adjusting screw and limited between ground rail transition block 13 and horizontal locking plate 15. Ground rail lock 17 is set on the bottom surface of horizontal locking plate 15 for locking with ground rail. In use, ground rail lock 17 is fixed to ground rail. By adjusting screw, the frame base 1-1 of the general test module and horizontal locking plate 15 can move slightly, thereby achieving precise adjustment of the distance between each antenna array. The adjusting screw adopts fine thread with small pitch to meet the high-precision adjustment requirements.

[0055] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A universal testing device for large-aperture antenna arrays, characterized in that, It is composed of multiple general test modules. The general test module includes a frame body (1). The frame body (1) is provided with an array mounting component, an array heat dissipation component and a module locking component. The array mounting component includes a guide rail and a lifting device (7). The guide rail includes multiple vertical guide rails (2) and horizontal guide rails (3). The horizontal guide rails (3) are raised and lowered on the vertical guide rails (2) by the lifting device (7). The horizontal guide rails (3) are provided with an adjustment module (5) for mounting the antenna array. The array heat dissipation component provides heat dissipation air for the antenna array. The module locking component is installed on the side of the bottom of the frame body (1) and includes an adjustment rod (12) and a ground rail locking device. The adjustment rod (12) locks the adjacent general test modules. The ground rail locking device fixes the frame body (1) and the ground rail.

2. The universal testing device for large-aperture antenna arrays according to claim 1, characterized in that, The adjusting rod (12) is a positive and negative threaded rod. The ground rail locking device includes a ground rail transition block (13), a latch (14) and a horizontal locking assembly. The ground rail transition block (13) is installed at the bottom of the frame body (1). The latch (14) is a heavy-duty door latch type quick latch (14) that locks the ground rail transition block (13) and the frame base (1-1). The horizontal locking assembly includes a horizontal locking plate (15), a spring (16) and a ground rail locker (17). The horizontal locking plate (15) is horizontally movable on the side of the ground rail transition block (13) by adjusting the screw. The spring (16) is sleeved on the adjusting screw and limited between the ground rail transition block (13) and the horizontal locking plate (15). The ground rail locker (17) is set on the bottom surface of the horizontal locking plate (15) for locking with the ground rail.

3. The universal testing device for large-aperture antenna arrays according to claim 1, characterized in that, The vertical guide rail (2) is vertically mounted on the frame body (1) via the guide rail mounting plate (4). The horizontal guide rail (3) is installed in two ways: one is horizontally fixed on the frame body (1) via the guide rail mounting plate (4), and the other is fixed on the first slider on the vertical guide rail (2) via the guide rail mounting plate (4). The guide rail mounting plate (4) is provided with fastening threaded holes (4-1) at intervals, and the flatness of the vertical guide rail (2) and the horizontal guide rail (3) is adjusted with fastening screws.

4. The universal testing device for large-aperture antenna arrays according to claim 1, characterized in that, The two ends of the horizontal guide rail (3) are foldable.

5. The universal testing device for large-aperture antenna arrays according to claim 1, characterized in that, The horizontal guide rail (3) is provided with multiple second sliders, and the adjustment module (5) is installed on the second sliders.

6. The universal testing device for large-aperture antenna arrays according to claim 1, characterized in that, The adjustment module (5) includes a base plate (5-1), a transition plate (5-2), an L-shaped limiting plate (5-3), and a product connecting plate (5-4). The base plate (5-1) is fixed to the second slider. The base plate (5-1) is provided with a slide rail lock (6) for fixing the position of the adjustment module (5) on the horizontal guide rail (3). The transition plate (5-2) is installed on the base plate (5-1). The L-shaped limiting plate (5-3) and the product connecting plate (5-4) are both installed on the transition plate (5-2). The gap between the L-shaped limiting plate (5-3) and the product connecting plate (5-4) is adjusted by a fine-tuning screw (5-5).

7. The universal testing device for large-aperture antenna arrays according to claim 1, characterized in that, The lifting device (7) includes an electric winch (7-1), a fixed pulley (7-2), and a wire rope (7-3). The electric winch (7-1) is located at the bottom of the frame body (1). The fixed pulleys (7-2) are a pair, one above the other, located at the top and bottom of the frame body (1). A lifting ring is set at the midpoint of the horizontal guide rail (3). One end of the wire rope (7-3) is fixed to the lifting ring, and the other end passes through the fixed pulley (7-2) at the top and the fixed pulley (7-2) at the bottom, and then connects to the electric winch (7-1) at the bottom. The electric winch (7-1) uses the wire rope (7-3) to pull the horizontal guide rail (3) up and down to adjust its position through the fixed pulley (7-2).

8. The universal testing device for large-aperture antenna arrays according to claim 1, characterized in that, The array heat dissipation assembly includes a bottom fan (8), a long fan (9) and a side fan (10). The bottom fan (8) is located at the bottom of the frame body (1) and has an upward-opening air guide shroud. There are multiple long fans (9) arranged horizontally in the middle of the frame body. There are multiple side fans (10) arranged in a detachable manner on both sides of the frame body by means of an angle adjustment device (11).

9. A universal testing device for large-aperture antenna arrays according to claim 1, characterized in that, The angle adjustment device (11) includes a hook (11-1), a rotating shaft, a knurled nut (11-2), and an equidistant toothed plate (11-3). One end of the hook (11-1) is rotatably mounted on the side wall of the frame body, and the other end is rotatably connected to the equidistant toothed plate (11-3). The equidistant toothed plate (11-3) is provided with multiple slots. The rotating shaft is set on the side wall of the frame body, and the knurled nut (11-2) is set at the end of the rotating shaft. The side fan (10) is mounted on the hook (11-1). When the side fan (10) is adjusted to a suitable angle, the rotating shaft is engaged with the corresponding slot on the equidistant toothed plate (11-3), and the knurled nut (11-2) is tightened to fix the side fan (10).

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