CN106054136A - Mounting bracket for T/R assembly of hemispherical phased array radar - Google Patents

Abstract

The invention proposes a mounting bracket for a hemispherical phased array radar T/R assembly, aiming to provide a mounting bracket with high reliability, high integration, and simple installation and maintenance. The present invention is realized through the following technical scheme: the bracket box (2) with a support flap (3) at the upper end and an adapter plate (4) at the free end is fixedly connected to the back arc bracket according to the two-layer dislocation structure On the base plate (1), the adapter plate is fixedly connected to the front end of the bracket box with an independent movable installation unit, and the accessory support frame (5) passes through the butt joint surface between the two layers of misplaced bracket boxes, respectively from the beginning to the end of the lower layer. The front side of the bracket box at both ends is vertically inserted and fixed on the arc-shaped bracket base plate (1); the power distributor (7) and the power divider (6) located on both sides of the power distributor are fixed on the accessory support frame as accessories On the front panel of the device, the assembly work of a component sub-array (10) is completed, and finally, all component sub-arrays are fixed to the inner side of the spherical surface of the hemispherical phased array radar.

Description

Mounting Bracket for Hemispherical Phased Array Radar T/R Assembly

technical field

The invention relates to a mounting and maintenance bracket mainly used for large hemispherical phased array radar T/R components.

Background technique

The planar phased array radar XBR of the United States is an X-band multifunctional broadband phased array radar with an antenna area of 123 square meters and a total of 81,000 T/R components; the AN/TPY-2 phased array radar also works in the X-band, and the antenna With an area of 9.2 square meters, there are 25,344 T/R modules in total. The surface area of a certain type of phased array antenna in China exceeds 150 square meters, and the number of T/R components exceeds 22,000. For a hemispherical phased array radar with a diameter of more than 10 meters, the surface area exceeds 160 square meters, the number of T/R components will exceed 24,000, and the total number of internal cables exceeds 80,000, with an average length of each cable of 12 meters. If the annual failure rate of 24,000 T/R components is 3%, 720 components need to be replaced a year, an average of 2 per day. The traditional T/R component installation method is to directly fix the metal bracket on the inner side of the spherical surface of the hemispherical phased array radar through four fastening screws, and then fix the T/R component on the bracket through four fastening screws. The cables are directly connected to the front or rear of the T/R assembly; when the T/R assembly is replaced, it is necessary to unscrew all the connecting cables, and then unscrew the four fastening screws of the T/R assembly. It takes at least 12 minutes to dismantle a T/R module in a small space where T/R modules are densely packed, and then install a new module and connect all cables. There are four major difficulties in the traditional installation method: First, if 20,000 metal brackets are installed, 80,000 holes need to be tapped inside the spherical surface of the hemispherical phased array radar. The workload is heavy and the tapping positioning of many holes is not accurate, resulting in The screw installation is skewed or cannot be installed; second, the traditional bracket does not have an adapter plate or an independently movable adapter plate, which requires multiple installation and removal of connecting cables when replacing the module; third, the traditional bracket is not placed on the T/R The accessory support frame at the back end of the module causes the power divider and power distributor to be too far away from the module, increasing a large amount of invalid wiring length, resulting in a large number of cables at the back end of the module like a waterfall, which seriously blocks the module and causes a huge The limited space inside the sphere is wasted, and more importantly, the use cost of the cable is greatly increased. Fourth, because the traditional installation method does not implement the module sub-array modular installation method, all T/R components and their brackets are installed separately on the inside of the sphere of the hemispherical phased array radar, and all installation work must and can only be done on the sphere It is done internally, resulting in difficult installation and low efficiency. Therefore, using the traditional installation method to install T/R components, when the number of installed components reaches tens of thousands or even more, the waste of manpower, material resources and time is amazing.

Contents of the invention

The purpose of the present invention is to provide a modular mounting bracket with high integration, high reliability and simple installation and maintenance for the shortcomings of the existing technology, which is used for the installation and maintenance of large hemispherical phased array radar T/R components.

The present invention can be achieved through the following measures: a mounting bracket for a hemispherical phased array radar T/R assembly, comprising: an arc-shaped bracket base plate 1, a bracket box body 2, a support flip cover 3, an adapter plate 4 and an accessory support Frame 5, power splitter 6 and power distributor 7 are characterized in that: the upper end has a support flip cover 3 and the free end has a bracket box 2 with an adapter plate 4, which is fixedly connected to the back arc according to a two-layer dislocation structure On the support substrate 1, the adapter plate 4 is fixedly connected to the front end of the support box 2 as an independent movable installation unit, and the accessory support frame 5 passes through the butt joint surface between the two-layer misplaced support box 2, respectively from the beginning to the end of the lower layer. The front sides of the bracket box 2 at both ends are vertically inserted and fixed on the arc-shaped bracket substrate 1; the power distributor 7 and the power dividers 6 located on both sides of the power distributor 7 are fixed on the front of the accessory support frame 5 as accessories On the panel, the assembly work of a component sub-array is completed so far. Finally, all component sub-arrays are fixed to the inner side of the hemispherical phased array radar sphere by fastening screws to complete the array assembly work.

Compared with the existing T/R component installation scheme, the present invention has the following beneficial effects:

Modular assembly is simpler. Starting from ensuring the overall reliability, applicability and maintainability of the equipment, the present invention aims at the disadvantages of traditional bracket installation, and adopts a new type of installation bracket to reduce the invalid workload of phased array radar T/R component installation and maintenance, and minimize the overall cost. The curved surface support substrate 1 is used as the support of the entire component sub-array, and all components of the component sub-array are directly or indirectly modularly installed on the curved surface support substrate 1, and the curved surface support substrate 1 is used as the component sub-array and hemispherical surface Bridges connected by brackets. The metal material of the component sub-array and its modular volume are easier to precisely machined, and the installation is more convenient, and the curved support base plate 1 and the support box 2 on it, the support flip cover 3, the adapter plate 4, and the accessory support frame 5. The power splitter 6 and the power distributor 7 can be installed as an independent component sub-array. A large number of sub-array assembly work can be completed outside the hemispherical support, and finally the sub-array can be installed inside the sphere. The modular installation method greatly reduces the internal assembly workload of the hemisphere, and the overall installation and maintenance time of the system is shortened to one-third to one-fourth of the traditional installation method.

Installation and maintenance are simpler. The present invention adopts an independent movable installation unit adapter plate 4 and the bracket box 2 that only needs to be pushed into the T/R assembly. Just align it with the rear end of the T/R assembly and fix it with two fastening screws. Since the number of screws used for component installation is only half of the traditional bracket, and the screws are installed at the tail of the bracket, when replacing the T/R component, after unscrewing the two screws, you only need to remove the adapter plate 4 and open the support cover 3. , both to protect the cable and reduce the invalid workload. Compared with traditional brackets, the installation and removal of T/R components with new brackets is easier and more efficient.

The wiring is more economical and less expensive. In the present invention, the accessory support frame 5, the power divider 6, and the power distributor 7 are taken as an accessory unit, and are directly placed at a certain distance from the rear ends of eight T/R components, so as to shorten the relationship between the adapter plate 4 and the power supply to the greatest extent. The cable connection length of splitter 6 and power distributor 7; the traditional bracket does not have a similar accessory support frame placed at the rear end of the T/R component, which causes the power splitter and power distributor to be too far away from the T/R component, increasing a large amount of Ineffective wiring lengths lead to a large number of cables at the back end of the T/R module like a waterfall, which seriously blocks other components, wastes the limited space inside the sphere, and more importantly, greatly increases the cost of cables. If the diameter of the hemisphere is 10 meters, the length of the connecting cable of the new bracket and the power divider is shortened from the original 12 meters to the current 0.3 meters, and the length of the connecting cable and the diameter of the hemisphere are changed. It doesn't matter, the actual length of the cable is reduced to one fortieth of the original, which saves a lot of valuable space at the back of the module, and wiring is no longer a problem.

Significant savings in system costs. The present invention installs 8 T/R components into a sub-array of components as a whole, and the distance between the T/R component and the power splitter and power distributor on the accessory support frame is short and meets the requirements for T/R component replacement. The appropriate distance is 0.3 meters. If the diameter of the hemisphere is 10 meters, then there are 40,000 transceiver local oscillator cables for 20,000 T/R components, and 20,000 bundles of power lines. The total cost of cables and power lines is about 1400. One fortieth of 10,000 yuan is 350,000 yuan, which saves 40 times the cost of cables compared with traditional installation methods.

The comparison of actual cost changes is shown in the table below

Improve the maintainability and security of the equipment. After adopting the present invention, the installation and replacement of the T/R module is simpler, and the cable does not need to be plugged and pulled out when the module is replaced, and the replacement of the module is no longer limited by insufficient surrounding space, and the replacement efficiency is higher. The overall integration of the equipment is improved, the length of the connecting cable is greatly shortened, the layout inside the sphere is more concise and beautiful, and the heat dissipation effect of the equipment inside the sphere is further improved.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the mounting bracket used in the large hemispherical phased array radar T/R assembly according to the present invention.

Figure 2. Schematic side view of Figure 1.

FIG. 3 is an expanded schematic diagram of the embodiment in FIG. 1 .

Fig. 4 is a schematic diagram of rear view decomposition of the installation relationship of the inner spherical surface of the hemispherical phased array radar.

In the figure: 1 curved surface support base plate, 2 support box, 3 support flip cover, 4 adapter plate, 5 accessory support frame, 6 power divider, 7 power distributor, 8 vibrator antenna, 9 hemispherical support, 10 components Array, 11 cables, 12 optical cables.

detailed description

See Figure 1-Figure 2. In the embodiment described below, a mounting bracket for a large-scale hemispherical phased array radar T/R assembly includes: arc surface bracket substrate 1, bracket box 2, support flip 3, adapter plate 4 and accessory support Frame 5, power divider 6 and power distributor 7, seven parts in total, wherein, the support box body 2 with supporting flip cover 3 at the upper end and adapter plate 4 at the free end is fixedly connected at the rear according to the two-layer dislocation structure On the back arc-shaped bracket substrate 1, the adapter plate 4 is fixedly connected to the front end of the bracket box 2 as an independent movable installation unit, and the accessory support frame 5 passes through the butt joint surface between the two layers of misplaced bracket boxes 2, respectively. From the front side of the bracket box 2 at both ends of the lower layer, insert and fix it vertically on the arc-shaped bracket substrate 1; the power distributor 7 and the power dividers 6 located on both sides of the power distributor 7 are fixed on the accessory support frame 5 as accessories At this point, the assembly work of a component sub-array is completed. Finally, all component sub-arrays are fixed to the inner side of the hemispherical phased array radar sphere by fastening screws to complete the array assembly work.

The curved surface support base plate 1 and the support box 2, support cover 3, adapter plate 4, accessory support frame 5, power splitter 6 and power distributor 7 on it can be installed as an independent component sub-array. The assembly work of a large number of component subarrays can be completed outside the hemispherical phased array sphere in advance, and then according to the number of the component subarrays, multiple component subarrays are spliced continuously to form a hemispherical phased array radar, that is: the component subarrays are located in the hemisphere After the surface phased array sphere is pre-assembled outside the body, it is numbered according to the assembly sequence and spliced continuously to form a hemispherical phased array radar. The curved support substrate 1 is the bridge connecting the entire support and the phased array radar sphere, and is the inner lining of the entire radar sphere; the support box 2 and the support flap 3 are the main bodies supporting the T/R assembly. The 8 support boxes 2 are installed on the arc surface support base plate 1 by fastening screws, the 8 support flaps 3 are respectively fixed on the 8 support boxes 2 by rivets, and the adapter plate 4 is installed on the support box by fastening screws 2 and the support clamshell 3. The power divider 6 and the power distributor 7 are respectively installed on the accessory support frame 5, and then the accessory support frame 5 is fixed on the arc surface support substrate 1; by installing the accessory support frame 5 as shown in Figure 2, the maximum shortening The length of the connecting cable between the adapter board 4 and the power divider 6 and the power distributor 7 is specified.

See Figure 3. The illustration shows the side-by-side installation relationship of the four component sub-arrays, but they have not been installed on the inside of the spherical surface of the hemispherical phased array. In the figure, the T/R components have been placed in the bracket box 2. From the figure, it can be seen that the relative spatial position relationship between the sub-arrays is more conducive to cable connection, wiring and module installation and replacement.

See Figure 4. The figure shows the installation relationship between the four component sub-arrays 10 and the hemispherical bracket 9, using this local installation relationship to demonstrate the global installation effect of the hemispherical phased array sphere inner bracket. If the component sub-arrays (10) are divided into four groups, the four component sub-arrays 10 are fixed on the hemispherical support 9 by fastening screws, and the antenna vibrator passes through the through hole on the hemispherical support 9, and the fastening screws and T/R Component docking. After the four component sub-arrays are installed, the cables 11 and optical cables 12 of each component sub-array are connected respectively. It can be seen from the figure that after adopting the new bracket, the positions of T/R components, power splitters, power distributors and other accessories are more compact, the connecting cables are shorter, and the overall layout is simple and clear. The new bracket achieves the predetermined design goals of reliability, applicability and maintainability.

The novelty of the present invention is shown and described through relevant figures, and those skilled in the art should understand that improvements made in form and content are within the scope of the present invention.

Claims (6)

1. A mounting bracket for hemispherical phased array radar T/R components, including: curved surface bracket substrate (1), bracket box (2), support flap (3), adapter plate (4) and accessories The support frame (5), the power divider (6) and the power distributor (7), are characterized in that: the upper end has a support flip cover (3) and the free end has a support box (2) with an adapter plate (4) , fixedly connected to the back arc-shaped bracket substrate (1) according to a two-layer dislocation structure, the adapter plate (4) is fixedly connected to the front end of the bracket box (2) with an independent movable installation unit, and the accessory support frame (5) Through the butt joint surface between the two layers of misplaced support box (2), respectively from the front side of the support box (2) at both ends of the lower layer, vertically inserted and fixed on the arc-shaped support base plate (1); power distribution The power divider (7) and the power divider (6) located on both sides of the power distributor (7) are fixed on the front panel of the accessory support frame (5) as accessories, and the assembly work of a component sub-array (10) is completed so far , finally, all component sub-arrays (10) are fixed to the inner side of the spherical surface of the hemispherical phased array radar by fastening screws to complete the array assembly work. 2. The mounting bracket for the hemispherical phased array radar T/R assembly as claimed in claim 1, characterized in that: the arc bracket substrate (1) and the bracket box (2) on it, the support flip (3 ), an adapter plate (4), an accessory support frame (5), a power divider (6) and a power distributor (7) are installed as an independent component sub-array. 3. The mounting bracket for hemispherical phased array radar T/R components as claimed in claim 1, characterized in that: after the component sub-arrays are pre-assembled outside the hemispherical phased array sphere, they are numbered according to the assembly sequence and spliced continuously Constitute a hemispherical phased array radar. 4. The mounting bracket for the hemispherical phased array radar T/R assembly as claimed in claim 1, characterized in that: the curved surface support substrate (1) is connected to the whole assembly sub-array (10) and the phased array radar sphere The bridge is the inner lining of the entire radar sphere. 5. The mounting bracket for the hemispherical phased array radar T/R assembly according to claim 1, characterized in that: the bracket box (2) and the support flip (3) are the main bodies supporting the T/R assembly. 6. the mounting bracket for hemispherical phased array radar T/R assembly as claimed in claim 1, is characterized in that: assembly sub-array (10) is divided into four groups, and four assembly sub-arrays (10) are fastened Screws are fixed on the hemispherical support (9), and the antenna vibrator passes through the through hole on the hemispherical support (9), and is docked with the T/R assembly through fastening screws.