Automatic attitude adjustment device for radar antenna array

Abstract

The present invention discloses an automatic attitude adjustment device for a radar antenna array, and belongs to the technical field of antenna assembly. The present invention includes an active end, a driven end, and a hoisting adapter; the hoisting adapter hoists the radar antenna array between the active end and the driven end; the active end is provided with an active end bearing seat, an active shaft, an active end rotating connection device, an active end base, and a driving motor; the active shaft is fixedly connected to the active end rotating connection device, and the active end rotating connection device is fixedly connected to one end of the antenna array; the driving motor drives the active shaft to rotate; the driven end is provided with a driven end bearing seat, a driven shaft, a driven end rotating connection device, and a driven end base; the driven shaft is fixedly connected to the driven end rotating connection device, and the driven end rotating connection device is fixedly connected to the other end of the antenna array. The present invention can solve the problem that the attitude of the antenna array is not adjustable and the assembly efficiency is low when the antenna array is assembled, and realize 360-degree automatic adjustment of the antenna array during the assembly process.

Description

Technical Field

[0001] The invention belongs to the technical field of antenna assembly, and in particular relates to an automatic attitude adjustment device for a radar antenna array. Background Art

[0002] With the continuous advancement of radar technology, modern phased array radars are developing in the direction of thin and light structure and highly integrated functions, and their antenna arrays have the characteristics of large caliber and high precision. The highly integrated antenna array of phased array radars leads to a large number of array devices with high density, and contains a large number of electronic components and interconnected cables.

[0003] For antenna arrays with a diameter greater than 2 meters by 2 meters, traditional assembly methods often use separate vertical or horizontal tooling. No matter which type of assembly tooling is used, it is necessary to configure a corresponding ladder or scaffolding to cover the entire antenna array. For complex antenna arrays, in order to meet assembly accessibility, it is even necessary to build two states of tooling at the same time.

[0004] The traditional antenna array assembly tooling has a fixed posture, which makes it difficult to adjust the posture to suit the most comfortable ergonomics, affecting assembly efficiency. At the same time, additional ladders or scaffolding are required to cover the entire array range, which poses certain safety hazards and a relatively chaotic assembly site.

[0005] To this end, an automatic attitude adjustment device suitable for large-size and highly integrated antenna arrays is invented, which has engineering use value. Summary of the invention

[0006] The purpose of the present invention is to provide an automatic attitude adjustment device for a radar antenna array, so as to solve the problem of low assembly efficiency caused by the fixed and non-adjustable attitude of the traditional antenna array during assembly, and to realize 360-degree automatic adjustment of the antenna array during assembly to meet the requirements for different attitudes of the antenna array during assembly and maximize the assembly efficiency of the antenna array.

[0007] Specifically, the present invention provides an automatic attitude adjustment device for a radar antenna array, including an active end, a driven end and a hoisting adapter;

[0008] The hoisting adapter is arranged at both ends of the radar antenna array, and the radar antenna array is hoisted between the active end and the driven end;

[0009] The active end is provided with an active end bearing seat, an active shaft, an active end rotating connection device, an active end base, and a driving motor; the active end bearing seat is placed on the active end base, and the active shaft is installed on the active end bearing seat; the active shaft is fixedly connected to the active end rotating connection device, and the active end rotating connection device is fixedly connected to one end of the antenna array; the driving motor drives the active shaft to rotate;

[0010] The driven end is provided with a driven end bearing seat, a driven shaft, a driven end rotating connection device, and a driven end base; the driven end bearing seat is placed on the driven end base, and the driven shaft is installed on the driven end bearing seat; the driven shaft is fixedly connected to the driven end rotating connection device, and the driven end rotating connection device is fixedly connected to the other end of the antenna array.

[0011] Furthermore, the active end rotation connection device and the driven end rotation connection device are respectively fixedly connected to the hoisting adapter devices at both ends of the antenna array surface.

[0012] Furthermore, a plurality of active end adjusting screws are provided at the bottom of the active end base to adjust the height and level of the active shaft; a plurality of driven end adjusting screws are provided at the bottom of the driven end base to adjust the height and level of the driven shaft.

[0013] Further, the active end rotation connection device includes an active end front connection plate, an active end rear connection plate, and an active end adjustable connection plate; the driven end rotation connection device includes a driven end front connection plate, a driven end rear connection plate, and a driven end adjustable connection plate; the hoisting adapters at both ends of the antenna array are fixedly connected to the active end front connection plate and the driven end front connection plate respectively;

[0014] The active end adjustable connecting plate is arranged around the active end front connecting plate and the active end rear connecting plate, fixedly connects the active end front connecting plate and the active end rear connecting plate, and adjusts the distance between the two; the driven end adjustable connecting plate is arranged around the driven end front connecting plate and the driven end rear connecting plate, fixedly connects the driven end front connecting plate and the driven end rear connecting plate, and adjusts the distance between the two.

[0015] Furthermore, the spacing between the active end front connecting plate and the active end rear connecting plate is adjustable in the range of 0-30 mm; the spacing between the driven end front connecting plate and the driven end rear connecting plate is adjustable in the range of 0-30 mm.

[0016] Furthermore, the automatic attitude adjustment device of the radar antenna array surface also includes an active end counterweight part arranged on the active end base and a passive end counterweight part arranged on the passive end base.

[0017] Furthermore, the automatic attitude adjustment device of the radar antenna array surface also includes a controller, which receives a drive control instruction and controls the drive motor to drive the driving shaft to rotate according to a corresponding action mode.

[0018] Furthermore, the automatic attitude adjustment device of the radar antenna array mentioned above also includes an electrical control box, which generates drive control instructions according to the operation and sends them to the controller.

[0019] Furthermore, the driven end is also provided with a brake device; when the controller receives a drive control instruction, the brake device is controlled to release, and the drive motor is controlled to drive the driving shaft to rotate; when the controller receives a stop drive signal from the drive motor, the brake device is controlled to hold the driven shaft.

[0020] The beneficial effects of the automatic attitude adjustment device of the radar antenna array of the present invention are as follows:

[0021] The automatic attitude adjustment device of the radar antenna array of the present invention has been applied in the actual assembly of the radar antenna array. Compared with the traditional assembly tooling, the automatic attitude adjustment device has the following effects:

[0022] The automatic attitude adjustment device of the radar antenna array surface of the present invention can adjust the height of the active shaft and the driven shaft from the ground through the adjustment screws arranged at the bottom of the base of the active end and the driven end, thereby adjusting the height of the antenna array surface to meet the requirements of assembly comfort for antenna array surfaces of different sizes. Operators can comfortably perform mechanical and electrical installation work in both vertical and horizontal states without the need for additional ladders or scaffolding. Only the attitude of the antenna array surface needs to be adjusted to effectively cover the operating range of the antenna array surface; the distance between the active end and the driven end is adjustable, and can be used for the assembly of antenna array surfaces of different sizes.

[0023] The automatic attitude adjustment device of the radar antenna array surface of the present invention has an active end and a driven end fixedly connected to the antenna array surface through a rotating connection device, and the front connecting plate and the rear connecting plate in the rotating connection device are connected by an adjustable connecting plate arranged around the two; and the spacing between the front connecting plate and the rear connecting plate is adjustable, and the adjustment range is determined by the length of the adjustable connecting plate arranged around the two, which can ensure that there is enough safety margin when the antenna array surface falls between the active end and the driven end, thereby improving the assembly efficiency. The controller receives the control instruction, controls the driving motor to drive the driving shaft to rotate forward, flip, stop and switch angles according to various action modes, so as to facilitate the attitude adjustment of the antenna array surface during the assembly process, and improve the adjustment accuracy and assembly efficiency. When the driving motor drives the driving shaft to rotate, the antenna array surface rotates with the driving shaft, and the driven shaft rotates with the antenna array surface; when the antenna array surface rotates to the required attitude, the driving motor stops driving, and at the same time, the brake device at the driven end holds the driven shaft tightly, which can effectively prevent the antenna array surface from rotating abnormally, thereby improving the assembly efficiency and accuracy. By adopting the automatic attitude adjustment device of the radar antenna array of the present invention, the assembly efficiency is greatly improved. The assembly work of the same antenna array is completed, the number of workers is reduced from 12 to 8, and the working time is reduced from 20 days to 12 days. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the main structure of an embodiment of the present invention.

[0025] Figure 2It is a stereoscopic diagram of the active end of an embodiment of the present invention.

[0026] Figure 3 It is a stereoscopic view of the driven end of an embodiment of the present invention.

[0027] Figure 4 It is a stereoscopic diagram of a rotary connection device according to an embodiment of the present invention.

[0028] Figure 5 It is a three-dimensional diagram of a hoisting adapter device according to an embodiment of the present invention.

[0029] Figure 6 It is a schematic diagram of an antenna array surface falling into an automatic posture adjustment device according to an embodiment of the present invention.

[0030] 1-active end; 11-active end bearing seat; 12-active shaft; 13-active end rotating connection device; 131-active end front connection plate; 132-active end rear connection plate; 133-active end adjustable connection plate; 14-active end counterweight; 15-active end base; 16-active end adjustment screw; 17-electrical control box; 18-driving motor; 2-driven end; 21-driven end bearing seat; 22-driven shaft; 23-driven end rotating connection device; 231-driven end front connection plate; 232-driven end rear connection plate; 233-driven end adjustable connection plate; 24-driven end counterweight; 25-driven end base; 26-driven end adjustment screw; 27-brake device; 3-antenna array; 4-hoisting adapter. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with embodiments and with reference to the accompanying drawings.

[0032] One embodiment of the present invention is an automatic attitude adjustment device for a radar antenna array.

[0033] The present invention provides an automatic attitude adjustment device suitable for large-size, highly integrated radar antenna arrays, the structure of which is as follows: Figure 1 As shown, the following technical solutions are adopted:

[0034] like Figure 1 As shown, the automatic posture adjustment device of this embodiment includes an active end 1, a passive end 2 and a hoisting adapter 4. The active end 1 and the passive end 2 are independent in structure and are respectively fixedly connected to one end of the antenna array 3 to be assembled through the hoisting adapter 4 to form a whole.

[0035] like Figure 2As shown, the active end 1 is provided with an active end bearing seat 11, an active shaft 12, an active end rotating connection device 13, an active end counterweight part 14, an active end base 15, an active end adjusting screw 16, an electrical control box 17, and a driving motor 18. The active end bearing seat 11 is placed on the active end base 15, and the active shaft is installed on the active end bearing seat 11. The active shaft 12 is fixedly connected to one end of the antenna array 3 through the active end rotating connection device 13. The driving motor 18 drives the active shaft 12 of the active end 1 to rotate, thereby driving the antenna array 3 to rotate, and realizing the posture adjustment of the antenna array 3.

[0036] like Figure 3 As shown, the driven end 2 is provided with a driven end bearing seat 21, a driven shaft 22, a driven end rotating connection device 23, a driven end counterweight part 24, a driven end base 25, a driven end adjusting screw 26, and a brake device 27. The driven end bearing seat 21 is placed on the driven end base 25, and the driven shaft 22 is installed on the driven end bearing seat 21. The driven shaft 22 is fixedly connected to one end of the antenna array 3 through the driven end rotating connection device 23.

[0037] The active end base 15 and the passive end base 25 serve as the bearing bases of the devices of the active end 1 and the passive end 2 respectively, and are also the bearing bases of the antenna array 3 as a whole after being connected with the automatic attitude adjustment device of the antenna array. The weight of the active end counterweight part 14 placed on the active end base 15 and the weight of the passive end counterweight part 24 placed on the passive end base 25 are calculated and checked according to the weight of the antenna array 3 to be assembled, so that the active end 1 after the active end counterweight part 14 is placed and the passive end 2 after the passive end counterweight part 24 is placed have anti-overturning ability.

[0038] A plurality of (e.g., 4) active end adjusting screws 16 are disposed at the bottom of the active end base 15, and a plurality of (e.g., 4) passive end adjusting screws 26 are disposed at the bottom of the passive end base 25. By adjusting the active end adjusting screws 16 and the passive end adjusting screws 26 respectively, the height and horizontality of the active shaft 12 and the passive shaft 22 from the ground, as well as the height of the antenna array 3 can be adjusted to meet the requirements of assembly comfort for antenna arrays of different sizes.

[0039] like Figure 2~Figure 4 As shown, the active end rotation connection device 13 and the driven end rotation connection device 23 have the same structure and are respectively arranged at the active end 1 and the driven end 2, and are used to fix the active end 1, the antenna array 3, and the driven end 2. The active end rotation connection device 13 includes an active end front connection plate 131, an active end rear connection plate 132, and an active end adjustable connection plate 133. The driven end rotation connection device 23 includes a driven end front connection plate 231, a driven end rear connection plate 232, and a driven end adjustable connection plate 233. Figure 5As shown, the active end front connecting plate 131 and the driven end front connecting plate 231 are respectively provided with fixing connection components (such as flanges). Figure 5 As shown, the two ends of the antenna array 3 are respectively provided with a hoisting adapter 4 (such as a flange), which can be fixedly connected to the fixing connection components (such as flanges and screws) on the active end front connecting plate 131 and the driven end front connecting plate 231, such as Figure 6 shown.

[0040] The active end front connecting plate 131 and the active end rear connecting plate 132 are connected by an active end adjustable connecting plate 133 arranged around the two ends; the spacing between the active end front connecting plate 131 and the active end rear connecting plate 132 is adjustable, and the adjustment range is determined by the length of the active end adjustable connecting plate 133. Preferably, the adjustment range is 0-30 mm. The passive end front connecting plate 231 and the passive end rear connecting plate 232 are connected by an adjustable passive end connecting plate 233 arranged around the two ends; the spacing between the passive end front connecting plate 231 and the passive end rear connecting plate 232 is adjustable, and the adjustment range is determined by the length of the passive end adjustable connecting plate 233. Preferably, the adjustment range is 0-30 mm. The active end rotating connecting device 13 and the passive end rotating connecting device 23 can ensure that there is sufficient safety margin when the antenna array surface 3 falls between the active end 1 and the passive end 2, thereby improving assembly efficiency. For example, when the distance between the active end front connecting plate 131 and the active end rear connecting plate 132, and the distance between the driven end front connecting plate 231 and the driven end rear connecting plate 232 are large, the antenna array surface 3 and the active end front connecting plate 131 and the driven end front connecting plate 231 fixed at both ends of the antenna array surface 3 can be conveniently dropped between the active end 1 and the driven end 2 when hoisting the antenna array surface 3.

[0041] The antenna array surface 3 is fixedly connected to the driving shaft 12 through the active end rotation connection device 13, and the driven shaft 22 of the driven end 2 is fixedly connected to the antenna array surface 3 through the driven end rotation connection device 23. The rotation centers of the driving shaft 12, the driven shaft 22, and the antenna array surface 3 are on the same straight line. When the driving motor 18 drives the driving shaft 12 of the active end 1 to rotate, the antenna array surface 3 rotates with the driving shaft 12, and the driven shaft 22 rotates with the antenna array surface 3. When the antenna array surface 3 rotates to the desired posture, the driving motor 18 stops driving.

[0042] The PLC is used inside the electrical control box 17 to receive the drive control instructions generated by the operation button, and control the drive motor 18 to drive the active shaft 12 to rotate forward, flip, stop and switch angles according to the corresponding action mode, so as to facilitate the posture adjustment of the antenna array 3 during the assembly process and improve the adjustment accuracy. The action mode can be set to a jog mode (when the operation button is pressed, the drive motor 18 drives the active shaft 12 to rotate, and when the operation button is released, the drive motor 18 stops driving), an automatic mode (for example, when the operation button is pressed, the drive motor 18 drives the active shaft 12 to rotate a preset angle in a preset direction), etc. Preferably, in another embodiment, the driven end 2 is also provided with a brake device 27. When the PLC receives the driving control instruction generated by the operation button, the brake device 27 of the driven end 2 is controlled to be released, and the driving motor 18 is controlled to drive the driving shaft 12 of the active end 1 to rotate, and the antenna array 3 rotates with the driving shaft 12; when the antenna array 3 rotates to the desired posture, the driving motor 18 stops driving, and when the PLC receives the stop driving signal, the brake device 27 is controlled to hold the driven shaft 22 tightly. In addition to the driving motor locking the active shaft, the brake device 27 can be used to hold the driven shaft 22 tightly to better prevent the abnormal rotation of the antenna array 3. It can be understood that other controllers such as single-chip microcomputers, DCS, FCS, etc. can be used to implement the corresponding functions of the PLC in this embodiment.

[0043] The following describes in detail the process of assembling the radar antenna array using the automatic attitude adjustment device of the radar antenna array of the present invention in conjunction with the accompanying drawings:

[0044] 1) If Figure 2 and Figure 3 As shown, the required active end counterweight part 14 and the driven end counterweight part 24 are calculated according to the weight of the antenna array to be measured, and are placed on the active end 1 and the driven end 2 respectively; the adjusting screws (active end adjusting screw 16, driven end adjusting screw 26) at the bottom of the active end base 15 and the driven end base 25 are adjusted respectively, so that the active end 1 and the driven end 2 are stably and horizontally placed on the ground. Specifically, the active shaft 12 of the active end 1 and the driven shaft 22 of the driven end 2 are both horizontal to the ground and maintain the same height with the ground.

[0045] 2) According to the dimensions of the antenna array, adjust the distance between the active end 1 and the passive end 2 so that the antenna array 3 can be placed between the active end 1 and the passive end 2, such as Figure 1 The distance between the active end 1 and the passive end 2 is adjustable, so that the automatic posture adjustment device of the radar antenna array surface of this embodiment can be used for assembling antenna array surfaces of different sizes.

[0046] 3) Adjust the adjusting screws (active end adjusting screw 16, driven end adjusting screw 26) at the bottom of the active end base 15 and the driven end base 25 respectively, and adjust the rotation center heights of the active shaft 12 and the driven shaft 22 so that the two are at the same height and the operators can comfortably perform mechanical and electrical installation work in both vertical and horizontal positions.

[0047] 4) Move the bases of the driving end and the driven end (driving end base 15, driven end base 25) so that the driving shaft 12 and the driven shaft 22 remain coaxial.

[0048] 5) The active end front connecting plate 131 and the passive end front connecting plate 231 are fixedly assembled with the two ends of the antenna array surface 3 respectively.

[0049] 6) If Figure 6 As shown, the antenna array 3 and the active end front connecting plate 131 and the passive end front connecting plate 231 are hoisted so that they fall between the active end rear connecting plate 132 and the passive end rear connecting plate 232, and the active end front connecting plate 131 and the active end rear connecting plate 132 are fixedly connected by the active end adjustable connecting plate 133, and the passive end front connecting plate 231 and the passive end rear connecting plate 232 are fixedly connected by the passive end adjustable connecting plate 233.

[0050] 7) According to assembly requirements, operate the electrical control box to drive the antenna array to rotate until the requirements are met.

[0051] The automatic attitude adjustment device of the radar antenna array of the present invention has been applied in the actual assembly of the radar antenna array. Compared with the traditional assembly tooling, the automatic attitude adjustment device has the following effects:

[0052] The height of the active shaft and the driven shaft from the ground can be adjusted by adjusting the adjustment screws at the bottom of the base of the active end and the driven end, thereby adjusting the height of the antenna array to meet the assembly comfort requirements of antenna arrays of different sizes. Operators can comfortably perform mechanical and electrical installation work in both vertical and horizontal positions without the need for additional ladders or scaffolding. They only need to adjust the antenna array posture to effectively cover the operating range of the antenna array. The distance between the active end and the driven end is adjustable, and can be used for the assembly of antenna arrays of different sizes.

[0053] The active end and the driven end are fixedly connected to the antenna array surface through a rotating connection device, and the front connecting plate and the rear connecting plate in the rotating connection device are connected through an adjustable connecting plate arranged around the two; and the spacing between the front connecting plate and the rear connecting plate is adjustable, and the adjustment range is determined by the length of the adjustable connecting plate arranged around the two, which can ensure that there is enough safety margin when the antenna array surface falls between the active end and the driven end, thereby improving assembly efficiency;

[0054] The controller receives control instructions and controls the drive motor to drive the active axis to rotate forward, flip, stop and switch angles according to various action modes, so as to facilitate the posture adjustment of the antenna array during the assembly process and improve the adjustment accuracy and assembly efficiency;

[0055] When the driving motor drives the active shaft to rotate, the antenna array rotates with the active shaft, and the driven shaft rotates with the antenna array. When the antenna array rotates to the required posture, the driving motor stops driving, and the brake device at the driven end holds the driven shaft tightly, which can effectively prevent the antenna array from rotating abnormally and improve assembly efficiency and accuracy.

[0056] By adopting the automatic attitude adjustment device of the radar antenna array of the present invention, the assembly efficiency is greatly improved. The assembly work of the same antenna array is completed, the number of workers is reduced from 12 to 8, and the working time is reduced from 20 days to 12 days.

[0057] Although the present invention has been disclosed as above with preferred embodiments, the embodiments are not intended to limit the present invention. Any equivalent changes or modifications made without departing from the spirit and scope of the present invention also belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the content defined by the claims of this application.

Claims

1. An automatic attitude adjustment device for a radar antenna array, characterized in that: It includes a driving end, a driven end and a lifting transfer device; The hoisting adapter is arranged at both ends of the radar antenna array, and the radar antenna array is hoisted between the active end and the driven end; The active end is provided with an active end bearing seat, an active shaft, an active end rotating connection device, an active end base, and a driving motor; the active end bearing seat is placed on the active end base, and the active shaft is installed on the active end bearing seat; the active shaft is fixedly connected to the active end rotating connection device, and the active end rotating connection device is fixedly connected to one end of the antenna array; the driving motor drives the active shaft to rotate; The driven end is provided with a driven end bearing seat, a driven shaft, a driven end rotating connection device, and a driven end base; The driven end bearing seat is placed on the driven end base, and the driven shaft is installed on the driven end bearing seat; the driven shaft is fixedly connected to the driven end rotating connection device, and the driven end rotating connection device is fixedly connected to the other end of the antenna array.

2. The automatic attitude adjustment device for the radar antenna array according to claim 1 is characterized in that: The active end rotation connection device and the driven end rotation connection device are respectively fixedly connected to the hoisting adapter devices at both ends of the antenna array surface.

3. The automatic attitude adjustment device for radar antenna array according to claim 1, characterized in that: The bottom of the active end base is provided with a plurality of active end adjusting screws for adjusting the height and levelness of the active shaft; the bottom of the passive end base is provided with a plurality of passive end adjusting screws for adjusting the height and levelness of the passive shaft.

4. The automatic attitude adjustment device for radar antenna array according to claim 1, characterized in that: The active end rotation connection device includes an active end front connection plate, an active end rear connection plate, and an active end adjustable connection plate; the driven end rotation connection device includes a driven end front connection plate, a driven end rear connection plate, and a driven end adjustable connection plate; the hoisting adapters at both ends of the antenna array are fixedly connected to the active end front connection plate and the driven end front connection plate respectively; The active end adjustable connecting plate is arranged around the active end front connecting plate and the active end rear connecting plate, fixedly connects the active end front connecting plate and the active end rear connecting plate, and adjusts the distance between the two; the driven end adjustable connecting plate is arranged around the driven end front connecting plate and the driven end rear connecting plate, fixedly connects the driven end front connecting plate and the driven end rear connecting plate, and adjusts the distance between the two.

5. The automatic attitude adjustment device for the radar antenna array according to claim 4 is characterized in that: The adjustment range of the spacing between the active end front connecting plate and the active end rear connecting plate is 0-30mm; the adjustment range of the spacing between the driven end front connecting plate and the driven end rear connecting plate is 0-30mm.

6. The automatic attitude adjustment device for radar antenna array according to claim 1, characterized in that: It also includes an active end counterweight part arranged on the active end base and a passive end counterweight part arranged on the passive end base.

7. The automatic attitude adjustment device for radar antenna array according to claim 1, characterized in that: It also includes a controller, which receives a drive control instruction and controls the drive motor to drive the driving shaft to rotate according to a corresponding action mode.

8. The automatic attitude adjustment device for radar antenna array according to claim 7, characterized in that: It also includes an electrical control box, which generates a drive control instruction according to the operation and sends it to the controller.

9. The automatic attitude adjustment device for radar antenna array according to claim 7, characterized in that: The driven end is also provided with a brake device; when the controller receives a drive control instruction, the brake device is controlled to release, and the drive motor is controlled to drive the driving shaft to rotate; when the controller receives a stop drive signal from the drive motor, the brake device is controlled to hold the driven shaft.

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