Multi-angle adjusting large antenna attitude conversion device

Abstract

The application discloses a multi-angle adjusting large antenna attitude conversion device, which comprises an attitude conversion frame and a lifting tool, an antenna subarray is placed on the attitude conversion frame, the lifting tool is connected with the antenna subarray, the inclination angle of the antenna subarray is adjusted through the attitude conversion frame, and the lifting tool is vertically lifted through a lifting rope; the application does not need to control the antenna subarray conversion attitude by adopting a manual rope pulling mode, greatly eliminates the hidden danger of personnel high-altitude operation, adjusts different angle ranges for different array surfaces, and directly enters assembly on the large antenna array surface after a specific angle is fixedly arranged on the ground, the installation angle precision is high, assembly errors are reduced, and the application has the characteristics of high consistency and safety.

Description

Technical Field

[0001] This invention relates to the field of radar assembly technology, and more specifically to a large antenna attitude conversion device with multi-angle adjustment. Background Technology

[0002] For large antenna arrays, the entire array is deployed at a certain angle, and the angles of different arrays are different. Each array is composed of thousands of antenna subarrays stacked together. It is not feasible to transport and erect the entire array as a whole. The current practice is that ground personnel assemble and debug each antenna subarray and then ship it to the equipment deployment site for erection.

[0003] To ensure the stability of the subarrays during long-distance transportation, transport fixtures are used to ensure that the subarrays are placed vertically on the vehicle. After the antenna subarrays are transported to the destination lifting area and their integrity is checked, they are lifted to a height of tens of meters by a vertical lifting device. Then, the ropes around the subarrays are controlled to ensure that the antenna subarrays are assembled at a specific angle.

[0004] After the antenna subarray is lifted close to the large antenna array, for antenna arrays at different angles, it is necessary to manually pull ropes to ensure that the antenna subarray is adjusted to a specific angle before it can be assembled. High-altitude operations have a high risk factor and can easily cause injury or death to personnel.

[0005] In view of the above-mentioned defects, the inventors of this invention have finally obtained this invention after a long period of research and practice. Summary of the Invention

[0006] To address the aforementioned technical deficiencies, the present invention provides a large antenna attitude conversion device with multi-angle adjustment, comprising an attitude conversion frame and a hoisting device. The antenna subarray is placed on the attitude conversion frame, and the hoisting device is connected to the antenna subarray. The attitude conversion frame adjusts the tilt angle of the antenna subarray, and the hoisting device is vertically lifted using a hoisting rope.

[0007] Preferably, the attitude conversion frame includes a base plate, a support frame, and an adjustment frame. The bottoms of the support frame and the adjustment frame are connected to the base plate via rotating seats. The support frame and the adjustment frame are connected via an adjustment assembly. The antenna subarray is placed on the support frame. The adjustment assembly adjusts the connection state between the support frame and the adjustment frame to adjust the tilt angle of the support frame.

[0008] Preferably, the adjusting frame includes two adjusting rods and a reinforcing rod. The two ends of the reinforcing rod are respectively fixedly connected to the two adjusting rods to form an H-shaped adjusting frame. The bottom ends of the two adjusting rods are connected to the base plate through the rotating seat, and the top ends of the two adjusting rods are connected to the support frame through the adjusting assembly.

[0009] Preferably, the support frame includes two parallel support rods, the bottom ends of which are connected to the base plate via the rotating seat. A limiting plate is provided on the upper surface of each support rod. The limiting plates on the two support rods are arranged in a one-to-one correspondence, and the corresponding limiting plates are symmetrically arranged. The distance between the corresponding limiting plates is consistent with the width of the antenna subarray. The two support rods are positioned between the corresponding limiting plates. A limiting pad is provided on the corresponding two limiting plates at the lowest position, and the limiting pad is positioned between the two limiting plates.

[0010] Preferably, the upper end face of the support rod is provided with a plurality of pads, and the plurality of pads are equidistantly arranged along the extension direction of the support rod.

[0011] Preferably, the adjustment assembly includes an adjustment seat, an adjustment plate, and an adjustment fixing pin. The adjustment seat is fixedly disposed on the top end of the adjustment rod, and the adjustment plate is fixedly disposed on the support rod. The adjustment seat and the adjustment plate are connected by the adjustment fixing pin.

[0012] Preferably, the adjusting seat is provided with an adjusting hole, the adjusting plate is provided with an adjusting groove, and the adjusting fixing pin is provided with a cylindrical snap-fit ​​section. The snap-fit ​​section is inserted into both the adjusting hole and the adjusting groove. The adjusting seat and the adjusting plate are connected. The adjusting groove includes a plurality of linearly arranged positioning holes. The positioning holes are circular holes, and the diameters of the positioning holes, the snap-fit ​​section, and the adjusting holes are the same.

[0013] Preferably, the lifting device includes a fixed frame, a connecting rod, and a lifting plate. The connecting rod and the lifting plate are both mounted on the fixed frame. The fixed frame is connected to the antenna subarray via the connecting rod, and the fixed frame is connected to the lifting rope via the lifting plate.

[0014] Preferably, both ends of the connecting rod are provided with threaded sections, and two fixing nuts are threadedly connected to each threaded section. The fixing frame or the antenna subarray is disposed between the two fixing nuts on the same threaded section.

[0015] Preferably, the lifting plate is provided with a plurality of lifting holes arranged in a straight line, and a lifting block is provided in the lifting hole, the lifting block being fixedly connected to the end of the lifting rope.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention does not require manual rope pulling to control the attitude change of the antenna subarray, which greatly eliminates the hidden dangers of personnel working at height. It can adjust different angle ranges for different array surfaces, and after a specific angle is fixed on the ground, it can be directly installed on the large antenna array surface. The installation angle accuracy is high, reducing assembly errors, and has the characteristics of high consistency and good safety. Attached Figure Description

[0017] Figure 1 This is a structural view of the large antenna attitude conversion device with multi-angle adjustment;

[0018] Figure 2 This is a schematic diagram of the lifting of the antenna subarray;

[0019] Figure 3 This is a structural view of the attitude conversion frame;

[0020] Figure 4 This is a structural view of the adjustment component;

[0021] Figure 5 This is a structural view of the lifting device;

[0022] Figure 6 This is a structural view of the lifting plate.

[0023] The numbers in the diagram represent:

[0024] 1-Attitude conversion frame; 2-Lifting device; 3-Antenna subarray; 4-Lifting rope; 11-Base plate; 12-Support frame; 13-Adjusting frame; 14-Adjusting assembly; 15-Limiting plate; 16-Pad plate; 17-Limiting pad; 21-Fixing frame; 22-Connecting rod; 23-Lifting plate; 141-Adjusting seat; 142-Adjusting clamping plate; 143-Adjusting fixing pin; 231-Lifting hole; 232-Lifting block. Detailed Implementation

[0025] The above-mentioned and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] like Figure 1 , Figure 2 As shown, Figure 1 This is a structural view of the large antenna attitude conversion device with multi-angle adjustment; Figure 2 This is a schematic diagram of the lifting of the antenna subarray.

[0028] The large antenna attitude conversion device with multi-angle adjustment according to the present invention includes an attitude conversion frame 1 and a hoisting device 2. The antenna subarray 3 is placed on the attitude conversion frame 1. The hoisting device 2 is connected to the antenna subarray 3. The tilt angle of the antenna subarray 3 is adjusted by the attitude conversion frame 1, and the hoisting device 2 is vertically lifted by the hoisting rope 4 to ensure that the line connecting the hoisting point and the center of gravity is perpendicular to the ground. This ensures that the antenna subarray 3 is lifted at a specific angle during hoisting, thus ensuring that the antenna subarray 3 is assembled at a specific angle.

[0029] This invention eliminates the need for ropes to be used for attitude conversion at high altitudes. The original vertical lifting device could only install 4 units per day, while this solution can install 16 units per day. For large antenna arrays containing thousands of subarrays, this greatly shortens the project cycle and saves more than 4 million yuan in installation costs.

[0030] This invention eliminates the need for manual rope pulling to control the attitude change of the antenna subarray 3, greatly reducing the risks of personnel working at heights. It allows for adjustment of different angle ranges for different array surfaces, and since specific angles are already fixed on the ground, it can be directly installed on the large antenna array surface. The installation angle accuracy is high, reducing assembly errors and featuring high consistency and good safety.

[0031] Example 2

[0032] like Figure 3 , Figure 4 As shown, Figure 3 This is a structural view of the attitude conversion frame; Figure 4 This is a structural view of the adjustment component.

[0033] The attitude conversion frame 1 includes a base plate 11, a support frame 12, and an adjustment frame 13. The bottoms of the support frame 12 and the adjustment frame 13 are connected to the base plate 11 via rotating seats. The support frame 12 and the adjustment frame 13 are connected via an adjustment assembly 14. The antenna subarray 3 is placed on the support frame 12. The connection state between the support frame 12 and the adjustment frame 13 is adjusted by the adjustment assembly 14, thereby adjusting the tilt angle of the support frame 12 and ensuring the placement angle of the antenna subarray 3 on the support frame 12.

[0034] The adjustment frame 13 includes two adjustment rods and a reinforcing rod. The two ends of the reinforcing rod are respectively fixedly connected to the two adjustment rods to form an H-shaped adjustment frame 13. The bottom ends of the two adjustment rods are connected to the base plate 11 through the rotating seat, and the top ends of the two adjustment rods are connected to the support frame 12 through the adjustment assembly 14.

[0035] The support frame 12 includes two parallel support rods. The bottom end of the support rods is connected to the base plate 11 through the rotating seat. A limiting plate 15 is provided on the upper surface of the support rod. The limiting plates 15 on the two support rods are arranged one-to-one and symmetrically. The distance between the two corresponding limiting plates 15 is the same as the width of the antenna subarray 3. The two support rods are arranged between the two corresponding limiting plates 15, so that the antenna subarray 3 can be placed on the upper surface of the support rod. At the same time, the limiting plates 15 can be used to fix and limit the antenna subarray 3.

[0036] Preferably, the upper end face of the support rod is provided with a plurality of pads 16, and the plurality of pads 16 are equidistantly arranged along the extension direction of the support rod.

[0037] Preferably, a limiting pad 17 is provided on the two limiting plates 15 at the lowest position, and the limiting pad 17 is disposed between the two limiting plates 15 to limit and fix the bottom of the antenna subarray 3.

[0038] Preferably, the adjusting rod, the reinforcing rod, and the supporting rod are all made of square tubing and are welded together, with a structural form that conforms to the stability design of a triangle.

[0039] The pad 16 is made of soft rubber to prevent the antenna subarray 3 from being bumped or damaged during attitude transitions.

[0040] The limiting pad 17 is made of hard rubber. Generally, the inner wall of the limiting plate 15 is provided with a hard rubber pad with a large coefficient of friction. The limiting plate 15 contacts the antenna subarray 3 through the hard rubber pad, which serves two purposes: first, to protect the antenna subarray 3, and second, to prevent the antenna subarray 3 from slipping during the process of lifting the antenna subarray 3 onto the attitude conversion frame 1.

[0041] The adjustment assembly 14 includes an adjustment seat 141, an adjustment plate 142, and an adjustment fixing pin 143. The adjustment seat 141 is fixedly mounted on the top of the adjustment rod, and the adjustment plate 142 is fixedly mounted on the support rod. The adjustment seat 141 and the adjustment plate 142 are connected by the adjustment fixing pin 143.

[0042] Specifically, the adjusting seat 141 is provided with an adjusting hole, the adjusting plate 142 is provided with an adjusting groove, and the adjusting fixing pin 143 is provided with a cylindrical snap-fit ​​section. The snap-fit ​​section is inserted into both the adjusting hole and the adjusting groove, and the adjusting seat 141 and the adjusting plate 142 are connected.

[0043] The adjustment groove includes several positioning holes arranged in a straight line. The positioning holes are circular holes, and the diameters of the positioning holes, the snap-fit ​​section, and the adjustment holes are the same.

[0044] Preferably, adjacent positioning holes are provided with overlapping areas to reduce the distance between adjacent positioning holes and ensure the adjustment of the support frame 12 at multiple tilt angles and the adjustment accuracy.

[0045] Example 3

[0046] like Figure 5 , Figure 6 As shown, Figure 5 This is a structural view of the lifting device; Figure 6This is a structural view of the lifting plate.

[0047] The lifting device 2 includes a fixed frame 21, a connecting rod 22, and a lifting plate 23. The connecting rod 22 and the lifting plate 23 are both mounted on the fixed frame 21. The fixed frame 21 is connected to the antenna subarray 3 through the connecting rod 22, and the fixed frame 21 is connected to the lifting rope 4 through the lifting plate 23.

[0048] Both ends of the connecting rod 22 are provided with threaded sections, and two fixing nuts are threadedly connected to each threaded section. The fixing frame 21 or the antenna subarray 3 is disposed between the two fixing nuts on the same threaded section, thereby realizing the fixed connection between the connecting rod 22 and the fixing frame 21 or the antenna subarray 3. The fixing frame 21 or the antenna subarray 3 can be fixed by setting the two fixing nuts.

[0049] The lifting plate 23 is provided with a plurality of lifting holes 231 arranged in a straight line. Lifting blocks 232 are provided in the lifting holes 231, and the lifting blocks 232 are fixedly connected to the end of the lifting rope 4. The lifting device 2 sets the lifting point position, i.e., the lifting hole 231, during the lifting process. The lifting point is adjustable in five positions and is adjusted accordingly according to the adjustment mechanism of the attitude conversion frame 1 to ensure that the line connecting the lifting point and the center of gravity is perpendicular to the ground, so that the antenna subarray 3 can be lifted at a specific angle during lifting.

[0050] Preferably, the connecting rod 22 is made of high-strength 45 steel, and the fixing frame 21 is configured as a rectangular frame structure.

[0051] The above description is merely a preferred embodiment of the present invention and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, all of which will fall within the protection scope of the present invention.

Claims

1. A large antenna attitude conversion device with multi-angle adjustment, characterized in that, The device includes an attitude conversion frame and a lifting device. The antenna subarray is placed on the attitude conversion frame, and the lifting device is connected to the antenna subarray. The attitude conversion frame is used to adjust the tilt angle of the antenna subarray, and the lifting device is lifted vertically by a sling to ensure that the line connecting the lifting point and the center of gravity is perpendicular to the ground. The lifting device includes a fixed frame, a connecting rod, and a lifting plate. The connecting rod and the lifting plate are both mounted on the fixed frame. The fixed frame is connected to the antenna subarray via the connecting rod, and the fixed frame is connected to the lifting rope via the lifting plate. Both ends of the connecting rod are provided with threaded sections, and two fixing nuts are threadedly connected to each threaded section. The fixing frame or the antenna subarray is arranged between the two fixing nuts on the same threaded section. The lifting plate is provided with a number of lifting holes arranged in a straight line, and a lifting block is provided in the lifting hole. The lifting block is fixedly connected to the end of the lifting rope.

2. The large antenna attitude conversion device with multi-angle adjustment as described in claim 1, characterized in that, The attitude conversion frame includes a base plate, a support frame, and an adjustment frame. The bottoms of the support frame and the adjustment frame are connected to the base plate via rotating seats. The support frame and the adjustment frame are connected by an adjustment assembly. The antenna subarray is placed on the support frame. The adjustment assembly adjusts the connection state between the support frame and the adjustment frame to adjust the tilt angle of the support frame.

3. The large antenna attitude conversion device with multi-angle adjustment as described in claim 2, characterized in that, The adjustment frame includes two adjustment rods and a reinforcing rod. The two ends of the reinforcing rod are respectively fixedly connected to the two adjustment rods to form an H-shaped adjustment frame. The bottom ends of the two adjustment rods are connected to the base plate through the rotating seat, and the top ends of the two adjustment rods are connected to the support frame through the adjustment assembly.

4. The large antenna attitude conversion device with multi-angle adjustment as described in claim 3, characterized in that, The support frame includes two parallel support rods. The bottom end of each support rod is connected to the base plate via the rotating seat. A limiting plate is provided on the upper surface of each support rod. The limiting plates on the two support rods are arranged in a one-to-one correspondence. The two corresponding limiting plates are symmetrically arranged, and the distance between the two corresponding limiting plates is consistent with the width of the antenna subarray. The two support rods are arranged between the two corresponding limiting plates. A limiting pad is provided on the two corresponding limiting plates at the lowest position, and the limiting pad is arranged between the two limiting plates.

5. The large antenna attitude conversion device with multi-angle adjustment as described in claim 4, characterized in that, The upper end face of the support rod is provided with several pads, and the several pads are equidistantly arranged along the extension direction of the support rod.

6. The large antenna attitude conversion device with multi-angle adjustment as described in claim 4, characterized in that, The adjustment assembly includes an adjustment seat, an adjustment plate, and an adjustment fixing pin. The adjustment seat is fixedly mounted on the top of the adjustment rod, and the adjustment plate is fixedly mounted on the support rod. The adjustment seat and the adjustment plate are connected by the adjustment fixing pin.

7. The large antenna attitude conversion device with multi-angle adjustment as described in claim 6, characterized in that, The adjusting seat is provided with an adjusting hole, the adjusting plate is provided with an adjusting groove, and the adjusting fixing pin is provided with a cylindrical snap-fit ​​section. The snap-fit ​​section is inserted into both the adjusting hole and the adjusting groove. The adjusting seat and the adjusting plate are connected. The adjusting groove includes several linearly arranged positioning holes. The positioning holes are circular holes, and the diameters of the positioning holes, the snap-fit ​​section, and the adjusting holes are the same.

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