Mounting structure of vehicle-mounted large antenna

Abstract

The utility model provides a mounting structure of a vehicle-mounted large antenna, which comprises an antenna frame provided with a lifting lug device, a first pitching support assembly, a second pitching support assembly, a third pitching support assembly, a fourth pitching support and a fifth pitching support. According to the utility model, the problems of heavy weight, low strength, large welding difficulty, large deformation and the like of an antenna mounting structure are solved, the technical effects of light weight and high rigidity and strength are achieved, the production cost is reduced, the development period is shortened, and the working performance of products is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle-mounted antennas, and particularly relates to an installation structure of a large vehicle-mounted antenna. Background Technique

[0002] The antenna installation structure is an important support structure for microwave antenna sub-arrays and power distribution waveguides. It is characterized by large volume, heavy weight, and high requirements for rigidity and strength. As an important structure for supporting microwave antennas, the design of the installation structure of large aperture antennas is an important link affecting the technical indicators of the entire microwave antenna system.

[0003] At present, there are mainly two forms of existing products for the installation structure of large aperture antennas: the first is a steel welding structure, in which the main components of the frame are made of steel, and finally a large antenna frame structure is formed by welding; the second is an aluminum alloy material structure, in which the main components of the frame are made of aluminum alloy, and finally a large antenna installation structure is formed by welding. The above two antenna installation structures have the following defects: 1. The material selected for the installation structure is a steel structure, which is too heavy, has a large amount of welding, large deformation, and a long processing cycle, and does not meet the development needs of new products; 2. The material selected for the installation structure is aluminum alloy material. Although the weight is reduced, the strength is relatively low, and there are also problems of large welding amount, large deformation, and long processing cycle; 3. Whether it is steel or aluminum, there are problems of large welding amount, large deformation, and it is difficult to ensure the external dimensions, installation dimensions, flatness, and form and position tolerances, which directly affect the functions and performance indicators of the microwave antenna system. Content of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides an installation structure of a large vehicle-mounted antenna.

[0005] The utility model is realized through the following technical solutions.

[0006] An installation structure of a large vehicle-mounted antenna includes an antenna frame, and a lifting lug device, a first pitch bracket assembly, a second pitch bracket assembly, a third pitch bracket assembly, a fourth pitch bracket, and a fifth pitch bracket are arranged on the antenna frame.

[0007] The antenna frame includes an upper cross beam, a lower cross beam, a left single longitudinal beam, a right single longitudinal beam, a middle cross beam, a double longitudinal beam, a single longitudinal beam, and a single cross beam, and the upper cross beam, the lower cross beam, the left single longitudinal beam, the right single longitudinal beam, the middle cross beam, the double longitudinal beam, the single longitudinal beam, and the single cross beam are connected to each other in a criss-cross manner.

[0008] The lifting lug device includes a lifting lug and a lifting lug mounting seat. The lifting lug is installed on the lifting lug mounting seat through a screw, and the lower part of the lifting lug mounting seat is a hollow structure;

[0009] The lug device is installed at the joints of the upper crossbeam and the single longitudinal beam, and at the joints of the lower crossbeam and the single longitudinal beam.

[0010] The first pitching support assembly includes a first pitching support I, a first pitching support II, and a first pitching support III;

[0011] The first pitching support I includes a first top plate and first support columns fixed at the four corners of the first top plate. A first mounting plate is fixed on the first support columns, and bolt holes are provided on the first mounting plate; the first top plate is a hollow structure and has bolt holes around it;

[0012] The first pitching support II includes a first bottom plate and second support columns fixed at the left and right ends of the first bottom plate. A second mounting plate is fixed on the second support columns, and the second support columns are hollow structures;

[0013] The first pitching support III includes a second bottom plate and third support columns fixed at the left and right ends of the second bottom plate. A third mounting plate is fixed on the third support columns, and the third support columns are hollow structures;

[0014] The first pitching support assembly 3 is installed at the joint of the single crossbeam 16 and the double longitudinal beams 14.

[0015] The second pitching support assembly includes a second pitching support I, a second pitching support II, and a second pitching support III;

[0016] The second pitching support I includes a second top plate and fourth support columns fixed at the left and right ends of the second top plate. A fourth mounting plate is fixed on the fourth support columns, and bolt holes are provided on the fourth mounting plate and the second top plate. The second top plate and the fourth support columns are hollow structures;

[0017] The second pitching support II includes a third bottom plate and fifth support columns fixed at the front and back ends of the third bottom plate. A fifth mounting plate is fixed on the fifth support columns, and the fifth support columns are hollow structures;

[0018] The second pitching support III includes a fourth bottom plate and sixth support columns fixed at the front and back ends of the fourth bottom plate. A sixth mounting plate is fixed on the sixth support columns, and the sixth support columns are hollow structures;

[0019] The second pitching support assembly is installed at the joint of the single crossbeam and the single longitudinal beam.

[0020] The third pitching support assembly includes a third pitching support I, a third pitching support II, and a third pitching support III;

[0021] The third pitching bracket I includes a third top plate and seventh support columns fixed at the left and right ends of the third top plate. A seventh mounting plate and an eighth mounting plate are respectively fixed at the lower left / right side of the seventh support columns. Bolt holes are provided on the seventh mounting plate, the eighth mounting plate and the third top plate; the third top plate is of a hollow structure;

[0022] The third pitching bracket II includes a fifth bottom plate and eighth support columns fixed at the front and rear ends of the fifth bottom plate. The eighth support columns are of a "U" shape structure;

[0023] The third pitching bracket III includes a sixth bottom plate and ninth support columns fixed at the front and rear ends of the sixth bottom plate. The ninth support columns are of a "U" shape structure;

[0024] The third pitching bracket assembly 5 is installed at the junction of the single cross beam 16 and the double longitudinal beams 14.

[0025] The fourth pitching bracket includes a seventh bottom plate and tenth support columns fixed at the left and right ends of the seventh bottom plate. A ninth mounting plate is fixed on the tenth support columns. Bolt holes are provided on the ninth mounting plate. The seventh bottom plate and the tenth support columns are of a hollow structure;

[0026] The fourth pitching bracket is installed on the double longitudinal beams and the lower cross beam.

[0027] The fifth pitching bracket includes a fourth top plate and eleventh support columns fixed at the left and right ends of the fourth top plate. A tenth mounting plate is fixed on the eleventh support columns. Bolt holes are provided on the fourth top plate. The fourth top plate and the eleventh support columns are of a hollow structure;

[0028] The fifth pitching bracket is installed on the double longitudinal beams.

[0029] A fixing block is installed above the front of the middle cross beam. Bolt holes are provided on the fixing block.

[0030] A first strengthening beam is fixedly installed above the back of the single cross beam; a second strengthening beam and a third strengthening beam are fixedly installed side by side above the back of the middle cross beam.

[0031] The beneficial effects of the present utility model are as follows:

[0032] The present utility model solves the problems of heavy weight, low strength, large welding difficulty, large deformation amount, etc. of the antenna installation structure, achieves the technical effects of light weight, high rigidity and low deformation amount, reduces the production cost, shortens the development cycle, and ensures the working performance of the product. Description of the Drawings

[0033] Figure 1 It is a front view of the installation structure of a large vehicle-mounted antenna according to an embodiment of the present utility model;

[0034] Figure 2 Rear view of an installation structure of a large vehicle-mounted antenna according to an embodiment of the present utility model;

[0035] Figure 3 Structural diagram of the lifting lug device of the present utility model;

[0036] Figure 4 According to an embodiment of the present utility model Figure 2 Schematic enlarged view of part F;

[0037] Figure 5 Structural diagram of the first pitching bracket assembly of the present utility model;

[0038] Figure 6 According to an embodiment of the present utility model Figure 2 Schematic enlarged view of part A;

[0039] Figure 7 Structural diagram of the second pitching bracket assembly of the present utility model;

[0040] Figure 8 According to an embodiment of the present utility model Figure 2 Schematic enlarged view of part B;

[0041] Figure 9 Structural diagram of the third pitching bracket assembly of the present utility model;

[0042] Figure 10 According to an embodiment of the present utility model Figure 2 Schematic enlarged view of part C;

[0043] Figure 11 Structural diagram of the fourth pitching bracket of the present utility model;

[0044] Figure 12 According to an embodiment of the present utility model Figure 2 Schematic enlarged view of part D;

[0045] Figure 13 Structural diagram of the fifth pitching bracket of the present utility model;

[0046] Figure 14 According to an embodiment of the present utility model Figure 2 Schematic enlarged view of part E;

[0047] In the figure: 1 - antenna frame, 2 - lifting lug device, 3 - first pitching support assembly, 4 - second pitching support assembly, 5 - third pitching support assembly, 6 - fourth pitching support, 7 - fifth pitching support, 8 - upper cross beam, 9 - lower cross beam, 10 - left single longitudinal beam, 11 - right single longitudinal beam, 12 - middle cross beam, 13 - fixing block, 14 - double longitudinal beam, 15 - single longitudinal beam, 16 - single cross beam, 17 - radar clearance opening, 18 - optoelectronic equipment installation area, 19 - lifting lug, 20 - lifting lug mounting seat, 21 - screw, 22 - first pitching support I, 23 - first pitching support II, 24 - first pitching support III, 25 - second pitching support I, 26 - second pitching support II, 27 - second pitching support III, 28 - third pitching support I, 29 - third pitching support II, 30 - third pitching support III, 31 - first reinforcing beam, 32 - second reinforcing beam, 33 - third reinforcing beam. Detailed implementation mode

[0048] The technical solution of the present utility model will be further described below in conjunction with the drawings and embodiments, but the scope of protection required is not limited thereto.

[0049] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "lower part", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for differential description and cannot be understood as indicating or implying relative importance.

[0050] Embodiment reference Figures 1 to 14

[0051] Main parameter indicators of the embodiment:

[0052] The external dimensions without the pitching support assembly and the lifting device 2 are: length × width × height = (7510 ± 3) mm × (2810 ± 2) mm × (150 ± 2) mm;

[0053] Weight: not more than 1000 kg;

[0054] The maximum deformation of the front flatness under working conditions: not more than 6 mm under the condition of including load;

[0055] Withstand loads including antenna subarray, power dividing waveguide, etc.: 2600 kg.

[0056] Such as Figure 1The front view of the installation structure of a large vehicle-mounted antenna according to the present utility model is shown, and the front is the installation surface of the microwave antenna sub-array; Figure 2 The rear view of the installation structure of a large vehicle-mounted antenna according to the present utility model is shown, and the rear is the installation surface of the lifting lug device 2, the first pitching support assembly 3, the second pitching support assembly 4, the third pitching support assembly 5, the fourth pitching support 6 and the fifth pitching support 7; An installation structure of a large vehicle-mounted antenna, including an antenna frame 1, wherein a lifting lug device 2, a first pitching support assembly 3, a second pitching support assembly 4, a third pitching support assembly 5, a fourth pitching support 6 and a fifth pitching support 7 are arranged on the antenna frame 1;

[0057] Preferably, the materials of the first pitching support assembly 3, the second pitching support assembly 4, the third pitching support assembly 5, the fourth pitching support 6 and the fifth pitching support 7 are all made of titanium alloy TC4 material, and this material can achieve the technical effects of high strength and light weight.

[0058] Preferably, 4 lifting lug devices 2, 2 first pitching support assemblies 3, 2 second pitching support assemblies 4, 1 third pitching support assembly 5, 2 fourth pitching supports 6 and 1 fifth pitching support 7 are adopted in this embodiment;

[0059] Preferably, in this embodiment, the antenna frame 1 is fixedly connected through 2 first pitching support assemblies 3, 2 second pitching support assemblies 4, 1 third pitching support assembly 5, 2 fourth pitching supports 6 and 1 fifth pitching support 7. The 2 first pitching support assemblies 3, 2 second pitching support assemblies 4, 1 third pitching support assembly 5, 2 fourth pitching supports 6 and 1 fifth pitching support 7 are used to be installed and fixed on the electric lifting cylinder of the follow-up system, and can rotate - 5° to 75° around the rotating shaft in the working state. The antenna frame 1 keeps the maximum comprehensive deformation less than 5 mm during the working state to ensure the normal operation of the antenna device.

[0060] Preferably, the antenna frame 1 includes an upper cross beam 8, a lower cross beam 9, a left single longitudinal beam 10, a right single longitudinal beam 11, a middle cross beam 12, a double longitudinal beam 14, a single longitudinal beam 15 and a single cross beam 16. The upper cross beam 8, the lower cross beam 9, the left single longitudinal beam 10, the right single longitudinal beam 11, the middle cross beam 12, the double longitudinal beam 14, the single longitudinal beam 15 and the single cross beam 16 are connected to each other through vertical and horizontal intersections;

[0061] Preferably, a plurality of single cross beams 16 are arranged between the upper cross beam 8 and the middle cross beam 12 and between the lower cross beam 9 and the middle cross beam 12, and a plurality of double longitudinal beams 14 and a plurality of single longitudinal beams 15 are arranged between the left single longitudinal beam 10 and the right single longitudinal beam 11;

[0062] Preferably, bolt holes are arranged on the upper cross beam 8, the lower cross beam 9, the left single longitudinal beam 10, the right single longitudinal beam 11 and the spaced single cross beam 16;

[0063] Preferably, in this embodiment, the antenna frame 1 has a crisscross structure, and the upper cross beam 8, the lower cross beam 9, the left single longitudinal beam 10, the right single longitudinal beam 11, the middle cross beam 12, the double longitudinal beam 14, the single longitudinal beam 15 and the single cross beam 16 are made of unidirectional carbon fiber composite material T300 and internal sandwich PMI foam material.

[0064] Preferably, the front surface of the antenna frame 1 is the installation surface of the antenna subarray. Antenna subarray bolt holes are provided on the antenna frame 1, and the model of the antenna subarray bolt holes is ∮11. A fixing block 13 is installed on the middle cross beam 12, and antenna subarray fixing bolt holes are provided on the fixing block 13. The multiple single cross beams 16 include a first single cross beam, a second single cross beam, a third single cross beam, a fourth single cross beam, a fifth single cross beam and a sixth single cross beam. The multiple double longitudinal beams 14 include a first double longitudinal beam, a second double longitudinal beam and a third double longitudinal beam. The multiple single longitudinal beams 15 include a first single longitudinal beam, a second single longitudinal beam, a third single longitudinal beam and a fourth single longitudinal beam;

[0065] Preferably, the first single cross beam, the second single cross beam and the third single cross beam are located between the upper cross beam 8 and the middle cross beam 12. The fourth single cross beam, the fifth single cross beam and the sixth single cross beam are located between the middle cross beam 12 and the lower cross beam 8. The first double longitudinal beam, the second double longitudinal beam and the third double longitudinal beam are located between the second single longitudinal beam and the third single longitudinal beam. A fifth single longitudinal beam and a sixth single longitudinal beam are respectively provided between the first double longitudinal beam and the second double longitudinal beam and between the second double longitudinal beam and the third double longitudinal beam. The fifth single longitudinal beam and the sixth single longitudinal beam end at the third single cross beam;

[0066] Reference Figure 3 to the structure diagram of the lifting lug device of the present utility model shown; the lifting lug device 2 includes a lifting lug 19 and a lifting lug mounting seat 20. One end of the lifting lug 19 is designed as a screw rod (21), and the screw rod 21 is installed on the lifting lug mounting seat 20. The lower part of the lifting lug mounting seat 20 is a hollow structure;

[0067] Reference Figure 4 to the enlarged structure schematic diagram of part F of the embodiment of the present utility model shown; the lifting lug device 2 is installed at the junction of the upper cross beam 8 and the single longitudinal beam 15 and at the junction of the lower cross beam 9 and the single longitudinal beam 15; Figure 2

[0068] Preferably, there are 4 lifting lug devices 2 in this embodiment. The first lifting lug device 2 is installed at the junction of the upper cross beam 8 and the second single longitudinal beam. The second lifting lug device 2 is installed at the junction of the upper cross beam 8 and the third single longitudinal beam. The first lifting lug device 2 and the second lifting lug device 2 are symmetric about the central axis. The third lifting lug device 2 is installed at the junction of the lower cross beam 9 and the second single longitudinal beam. The third lifting lug device 2 is installed at the junction of the lower cross beam 9 and the third single longitudinal beam. The third lifting lug device 2 and the fourth lifting lug device 2 are symmetric about the central axis; ​

[0069] Preferably, the lug device 2 is used for the hoisting requirements of the product. The lug mounting seat 20 is made of titanium alloy TC4 material and is adhesively bonded and fixed to the antenna frame 1. The lug 19 is made of stainless steel. The bolt holes of the lug mounting seat 20 are connected with M64 screw holes and are only bolt-connected to the antenna frame 1 during hoisting operations. The hoisting support can be removed and placed in the vehicle toolbox during the transportation state or working state.

[0070] Selecting the titanium alloy TC4 material for the lug mounting seat 20 can achieve the technical effects of high strength and light weight.

[0071] Reference Figure 5 Refer to the structure diagram of the first pitching support assembly of the present utility model shown in; the first pitching support assembly 3 includes a first pitching support Ⅰ 22, a first pitching support Ⅱ 23 and a first pitching support Ⅲ 24;

[0072] The first pitching support Ⅰ 22 includes a first top plate and first support columns fixed at the four corners of the first top plate. A first mounting plate is fixed on the first support columns, and bolt holes are provided on the first mounting plate; the first top plate is a hollow structure and bolt holes are provided around it;

[0073] The first pitching support Ⅱ 23 includes a first bottom plate and second support columns fixed at the left and right ends of the first bottom plate. A second mounting plate is fixed on the second support columns, and the second support columns are hollow structures;

[0074] The first pitching support Ⅲ 24 includes a second bottom plate and third support columns fixed at the left and right ends of the second bottom plate. A third mounting plate is fixed on the third support columns, and the third support columns are hollow structures;

[0075] Reference Figure 6 Refer to the Figure 2 A partial enlarged structure diagram of the present utility model shown in; the first pitching support assembly 3 is installed at the intersection of the single cross beam 16 and the double longitudinal beams 14.

[0076] Preferably, there are 2 first pitching support assemblies 3 in this embodiment. The 2 first pitching support assemblies 3 are symmetric about the central axis. One of the first pitching support assemblies 3 is fixedly mounted at the intersection of the first double longitudinal beam and the second single cross beam by means of encircling, and the other first pitching support assembly 3 is fixedly mounted at the intersection of the third double longitudinal beam and the second single cross beam by means of encircling and is fixedly connected by screwing through the bolt holes on the first mounting plate, that is, fastened with screws;

[0077] Reference Figure 7 Refer to the structure diagram of the second pitching support assembly of the present utility model shown in; the second pitching support assembly 4 includes a second pitching support Ⅰ 25, a second pitching support Ⅱ 26 and a second pitching support Ⅲ 27;

[0078] The second pitching bracket I 25 includes a second top plate and fourth support columns fixed to the left and right ends of the second top plate. Fourth mounting plates are fixed on the fourth support columns. Bolt holes are provided on the fourth mounting plates and the second top plate. The second top plate and the fourth support columns are of hollow structure;

[0079] The second pitching bracket II 26 includes a third bottom plate and fifth support columns fixed to the front and rear ends of the third bottom plate. Fifth mounting plates are fixed on the fifth support columns. The fifth support columns are of hollow structure;

[0080] The second pitching bracket III 27 includes a fourth bottom plate and sixth support columns fixed to the front and rear ends of the fourth bottom plate. Sixth mounting plates are fixed on the sixth support columns. The sixth support columns are of hollow structure;

[0081] Reference Figure 8 to the enlarged structure schematic diagram of part B of the new embodiment of the present utility model shown in Figure 2 ; The second pitching bracket assembly 4 is installed at the intersection of the single cross beam 16 and the single longitudinal beam 15..

[0082] Preferably, the two second pitching bracket assemblies 4 in this embodiment are symmetric about the central axis. One second pitching bracket assembly 4 is fixed by embracing at the intersection of the fifth single longitudinal beam and the second single cross beam, and the other second pitching bracket assembly 4 is fixed by embracing at the intersection of the sixth single longitudinal beam and the second single cross beam, and is fixedly connected by screwing through the bolt holes on the fourth mounting plate, that is, fastened with screws.

[0083] Reference Figure 9 to the structure diagram of the third pitching bracket assembly of the present utility model shown in

[0084] The third pitching bracket I 28 includes a third top plate and seventh support columns fixed to the left and right ends of the third top plate. A seventh mounting plate and an eighth mounting plate are respectively fixed to the lower left / right sides of the seventh support columns. Bolt holes are provided on the seventh mounting plate, the eighth mounting plate and the third top plate; The third top plate is of hollow structure;

[0085] The third pitching bracket II 29 includes a fifth bottom plate and eighth support columns fixed to the front and rear ends of the fifth bottom plate. The eighth support columns are of "U" shape structure;

[0086] The third pitching bracket III 30 includes a sixth bottom plate and ninth support columns fixed to the front and rear ends of the sixth bottom plate. The ninth support columns are of "U" shape structure;

[0087] Reference Figure 10 to the new embodiment of the present utility model shown inFigure 2 The third pitch support assembly 5 is installed at the intersection of the single cross beam 16 and the double longitudinal beam 14;

[0088] Preferably, a third pitch bracket assembly 5 of the present embodiment is fixed at the junction of the second double longitudinal beam and the second single transverse beam in an embracing manner, and is screwed and fixed through bolt holes on the seventh mounting plate and the eighth mounting plate, that is, fastened with screws.

[0089] refer to Figure 11 The structure diagram of the fourth pitch bracket of the utility model shown in the figure; the fourth pitch bracket 6 includes a seventh base plate and a tenth support column fixed to the left ends of the seventh base plate, a ninth mounting plate is fixed on the tenth support column, a bolt hole is provided on the ninth mounting plate, and the seventh base plate and the tenth support column are hollow structures;

[0090] refer to Figure 12 The utility model embodiment shown in Figure 2 The fourth pitch bracket 6 is installed on the double longitudinal beam 14 and the lower cross beam 9;

[0091] Preferably, the two fourth pitch brackets 6 of the present embodiment are symmetrical about the central axis, one of the fourth pitch brackets 6 is fixed to the first double longitudinal beam in an embracing manner, and the other fourth pitch bracket 6 is fixed to the third double longitudinal beam in an embracing manner, and is screwed and fixed to the lower cross beam 9 through the bolt holes on the ninth mounting plate, that is, fastened with screws.

[0092] refer to Figure 13 The structure diagram of the fifth pitch bracket of the utility model shown in the figure; the fifth pitch bracket 7 includes a fourth top plate and an eleventh support column fixed to the left and right ends of the fourth top plate, a tenth mounting plate is fixed to the eleventh support column, a bolt hole is provided on the fourth top plate, and the fourth top plate and the eleventh support column are hollow structures;

[0093] refer to Figure 14 The utility model embodiment shown in Figure 2 The enlarged structure of part E is schematically shown; the fifth pitch bracket 7 is installed on the double longitudinal beam 14.

[0094] Preferably, the fifth pitch bracket 7 of the present embodiment is fixed to the second double longitudinal beam in an embracing manner; and is screwed and fixed through bolt holes, that is, fastened with screws.

[0095] In this embodiment, the middle position of the antenna frame 1 uses the first double longitudinal beam, the second double longitudinal beam and the third double longitudinal beam. Since the force and support points are mainly concentrated in the middle position, the double longitudinal beam is used in the middle position to meet the requirements of supporting strength for the antenna subarray.

[0096] A fixing block 13 is installed above the front of the middle crossbeam 12, and a bolt hole is provided on the fixing block 13; specifically, the front is the installation surface of the microwave antenna sub-array.

[0097] Preferably, in this embodiment, the fixing block 13 is used to install and fix the microwave antenna sub-array, enhancing the stability of the microwave antenna sub-array.

[0098] On the back of the antenna frame 1, the back is the non-microwave antenna sub-array installation surface. Above the back of the single crossbeam 16, a first reinforcing beam 31 is fixedly installed; above the back of the middle crossbeam 12, a second reinforcing beam 32 and a third reinforcing beam 33 are fixedly installed in parallel.

[0099] Reinforcing beam design is adopted above the crossbeam 16 and the middle crossbeam 12 at the middle and upper positions of the antenna frame 1 to increase the overall strength of the antenna frame 1 and play a role in supporting the microwave antenna sub-array.

[0100] The third reinforcing beam 33 is provided with bolt holes at intervals for the fixed installation of the rear cover.

[0101] The first reinforcing beam 31, the second reinforcing beam 32 and the third reinforcing beam 33 are composed of high-modulus carbon fiber composite material M40J and internal sandwich PMI foam material; adopting T300-grade and M40J-grade carbon fiber reinforced epoxy resin materials has the technical effects of high strength, light weight and low deformation.

[0102] Preferably, in this embodiment, the first reinforcing beam 31 is fixed by screwing and glued above the first single crossbeam, and the second reinforcing beam 32 and the third reinforcing beam 33 are fixed by screwing and glued above the middle crossbeam 12.

[0103] In this embodiment, 16 microwave antenna sub-arrays can be installed on the front of the antenna frame 1 and fixed by screwing through bolt holes, that is, screwed tightly with screws.

[0104] The utility model solves the problems of heavy weight, low strength, large welding difficulty, large deformation amount, etc. of the antenna installation structure, achieves the technical effects of light weight, high rigidity and low deformation amount, reduces the production cost, shortens the development cycle, and ensures the product workability.

Claims

1. An installation structure for a large vehicle-mounted antenna, characterized in that: It includes an antenna frame (1), on which a lug device (2), a first pitching bracket assembly (3), a second pitching bracket assembly (4), a third pitching bracket assembly (5), a fourth pitching bracket (6) and a fifth pitching bracket (7) are provided.

2. The installation structure of a large vehicle-mounted antenna according to claim 1, characterized in that: The antenna frame (1) includes an upper cross beam (8), a lower cross beam (9), a left single longitudinal beam (10), a right single longitudinal beam (11), a middle cross beam (12), a double longitudinal beam (14), a single longitudinal beam (15) and a single cross beam (16), and the upper cross beam (8), the lower cross beam (9), the left single longitudinal beam (10), the right single longitudinal beam (11), the middle cross beam (12), the double longitudinal beam (14), the single longitudinal beam (15) and the single cross beam (16) are interconnected by crisscrossing.

3. The installation structure of a large in-vehicle antenna according to claim 1, characterized in that: The lug device (2) includes a lug (19) and a lug mounting seat (20), the lug (19) is mounted on the lug mounting seat (20) through a screw (21), and the lower part of the lug mounting seat (20) is of a hollow structure; The lug device (2) is installed at the junction of the upper cross beam (8) and the single longitudinal beam (15) and at the junction of the lower cross beam (9) and the single longitudinal beam (15).

4. The installation structure of a large vehicle-mounted antenna according to claim 1, characterized in that: The first pitching bracket assembly (3) includes a first pitching bracket Ⅰ (22), a first pitching bracket Ⅱ (23) and a first pitching bracket Ⅲ (24); The first pitching bracket Ⅰ (22) includes a first top plate and first support columns fixed at the four corners of the first top plate. A first mounting plate is fixed on the first support columns, and bolt holes are provided on the first mounting plate; the first top plate is of a hollow structure, and bolt holes are provided around it; The first pitching bracket Ⅱ (23) includes a first bottom plate and second support columns fixed at the left and right ends of the first bottom plate. A second mounting plate is fixed on the second support columns, and the second support columns are of a hollow structure; The first pitching bracket Ⅲ (24) includes a second bottom plate and third support columns fixed at the left and right ends of the second bottom plate. A third mounting plate is fixed on the third support columns, and the third support columns are of a hollow structure; The first pitching bracket assembly (3) is installed at the junction of the single cross beam (16) and the double longitudinal beam (14).

5. The mounting structure of a large vehicle-mounted antenna according to claim 1, characterized in that: The second pitching bracket assembly (4) includes a second pitching bracket Ⅰ (25), a second pitching bracket Ⅱ (26) and a second pitching bracket Ⅲ (27); The second pitching bracket Ⅰ (25) includes a second top plate and fourth support columns fixed at the left and right ends of the second top plate. A fourth mounting plate is fixed on the fourth support columns, bolt holes are provided on the fourth mounting plate and the second top plate, and the second top plate and the fourth support columns are of a hollow structure; The second pitching bracket Ⅱ (26) includes a third bottom plate and fifth support columns fixed at the front and back ends of the third bottom plate. A fifth mounting plate is fixed on the fifth support columns, and the fifth support columns are of a hollow structure; The second pitching bracket Ⅲ (27) includes a fourth bottom plate and sixth support columns fixed at the front and back ends of the fourth bottom plate. A sixth mounting plate is fixed on the sixth support columns, and the sixth support columns are of a hollow structure; The second pitching bracket assembly (4) is installed at the junction of the single cross beam (16) and the single longitudinal beam (15).

6. The installation structure of a large vehicle-mounted antenna according to claim 1, characterized in that: The third pitching bracket assembly (5) includes a third pitching bracket I (28), a third pitching bracket II (29), and a third pitching bracket III (30); The third pitching bracket I (28) includes a third top plate and seventh support columns fixed at the left and right ends of the third top plate. A seventh mounting plate and an eighth mounting plate are respectively fixed at the lower left / right sides of the seventh support columns. Bolt holes are provided on the seventh mounting plate, the eighth mounting plate, and the third top plate; the third top plate is a hollow structure; The third pitching bracket II (29) includes a fifth bottom plate and eighth support columns fixed at the front and rear ends of the fifth bottom plate. The eighth support columns are in a "U" shape; The third pitching bracket III (30) includes a sixth bottom plate and ninth support columns fixed at the front and rear ends of the sixth bottom plate. The ninth support columns are in a "U" shape; The third pitching bracket assembly (5) is installed at the junction of the single cross beam (16) and the double longitudinal beams (14).

7. The installation structure of a large vehicle-mounted antenna according to claim 1, characterized in that: The fourth pitching bracket (6) includes a seventh bottom plate and tenth support columns fixed at the left and right ends of the seventh bottom plate. A ninth mounting plate is fixed on the tenth support columns. Bolt holes are provided on the ninth mounting plate. The seventh bottom plate and the tenth support columns are hollow structures; The fourth pitching bracket (6) is installed on the double longitudinal beams (14) and the lower cross beam (9).

8. The installation structure of a large vehicle-mounted antenna according to claim 1, characterized in that: The fifth pitching bracket (7) includes a fourth top plate and eleventh support columns fixed at the left and right ends of the fourth top plate. A tenth mounting plate is fixed on the eleventh support columns. Bolt holes are provided on the fourth top plate. The fourth top plate and the eleventh support columns are hollow structures; The fifth pitching bracket (7) is installed on the double longitudinal beams (14).

9. The mounting structure of a large vehicle-mounted antenna according to claim 2, characterized in that: A fixing block (13) is installed above the front of the middle cross beam (12), and bolt holes are provided on the fixing block (13).

10. The installation structure of a large vehicle-mounted antenna according to claim 2, characterized in that: A first reinforcing beam (31) is fixedly installed above the back of the single cross beam (16); a second reinforcing beam (32) and a third reinforcing beam (33) are fixedly installed side by side above the back of the middle cross beam (12).

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