An antenna attitude accurate adjustment device

Abstract

This invention discloses a precise antenna attitude adjustment device, comprising an attitude adjustment subsystem, an elevation subsystem, and an omnidirectional moving fixture system. The elevation subsystem, used to adjust the antenna's elevation attitude, is connected to both the attitude adjustment subsystem and the omnidirectional moving fixture system, with the antenna mounted on the elevation subsystem. The omnidirectional moving fixture system, positioned below the elevation and attitude adjustment subsystems, is capable of omnidirectional movement and is used for antenna transport. The attitude adjustment subsystem, located below the elevation subsystem, includes a main frame and a roll attitude adjustment mechanism and a yaw attitude adjustment mechanism mounted on the main frame. The roll attitude adjustment mechanism adjusts the antenna's roll attitude, and the yaw attitude adjustment mechanism adjusts the antenna's azimuth attitude. This invention enables attitude conversion during antenna assembly and testing, as well as inter-site antenna transport, effectively achieving antenna attitude conversion during final antenna assembly, significantly saving manpower and resources, and improving antenna assembly efficiency.

Description

Technical Field

[0001] This invention relates to the field of antenna attitude adjustment technology, and more specifically to a device for precise antenna attitude adjustment. Background Technology

[0002] Phased array antennas involve various attitude changes during radar assembly, including support, transportation, and testing. Upon arrival at the assembly site, the antenna must be transitioned from a transport state to an assembly state. After assembly, it will enter an anechoic chamber for focusing tests. This requires moving the antenna from its upright position to a transport state, transferring it from the assembly area to the anechoic chamber, and adjusting it to a test state. To achieve this test state, manual adjustment of the assembly fixtures and the antenna's position relative to the probe is necessary. This entire adjustment process is highly difficult for manual operation and the operation time is unpredictable. Once the antenna test parameters meet the requirements, it must be moved from the test state to a transport state, transitioning it from a vertical position to a state conducive to transportation. The entire process of moving the antenna and fixtures in and out of the anechoic chamber relies entirely on manual operation.

[0003] The entire antenna and tooling set weighs over 20 tons. The entire transfer and testing process relies on manual operation. Not only is the time for the antenna to reach the testing state in the anechoic chamber and the time for the antenna to enter and exit the anechoic chamber uncertain, but it also occupies the assembly channel for a long time, causing unpredictable impacts on the assembly production cycle. Summary of the Invention

[0004] The purpose of this invention is to provide a device for precise antenna attitude adjustment, which can effectively realize antenna attitude conversion during antenna assembly, greatly save manpower and material resources, and improve the efficiency of antenna assembly.

[0005] To achieve the above objectives, one aspect of the present invention provides an antenna attitude precision adjustment device, including an attitude adjustment subsystem, a pitch subsystem, and an omnidirectional moving fixture system.

[0006] The pitch subsystem is used to adjust the pitch attitude of the antenna and is connected to the attitude adjustment subsystem and the omnidirectional moving tooling system respectively. The antenna is mounted on the pitch subsystem.

[0007] The omnidirectional moving fixture system is located below the pitch subsystem and attitude adjustment subsystem, and can move in all directions for antenna transfer.

[0008] The attitude adjustment subsystem is located below the pitch subsystem and includes a main frame and a roll attitude adjustment mechanism and a yaw attitude adjustment mechanism disposed on the main frame. The roll attitude adjustment mechanism is used to adjust the roll attitude of the antenna, and the yaw attitude adjustment mechanism is used to adjust the azimuth attitude of the antenna.

[0009] The yaw attitude adjustment mechanism includes a yaw attitude adjustment platform and a slewing support located in the middle of the yaw attitude adjustment platform. The slewing support enables the yaw attitude adjustment platform to rotate horizontally relative to the main frame.

[0010] The rolling attitude adjustment mechanism includes a yaw limit block, a first spiral lift, and a horizontal displacement mechanism. The yaw limit block is installed at the four corners of the main frame to control the horizontal rotation of the yaw attitude adjustment platform. The first spiral lift is installed at the four corners of the main frame to raise and lower the main frame. The horizontal displacement mechanism is fixedly connected to the first spiral lift to compensate for the horizontal displacement of the first spiral lift.

[0011] Preferably, four casters are provided at the bottom of the main frame, two auxiliary support second screw lifts are provided in the middle of the main frame, support blocks are provided below the second screw lifts, and a rolling motor for driving the first screw lift is provided on the side of the first screw lift.

[0012] Preferably, the horizontal displacement mechanism includes a base, guide rails, limit blocks, sliders, and mounting base. Two guide rails are provided above the base, and limit blocks are provided at the front and rear ends of the guide rails. A slider is slidably connected to the guide rails, and a mounting base is screwed to the top of the slider. A first screw jack is installed inside the mounting base.

[0013] Preferably, the front end of the main frame is provided with a ranging sensor for detecting the yaw angle, the rear end of the main frame is provided with a tilt sensor for detecting the horizontal angle of the attitude adjustment subsystem, and the front end of the main frame is also provided with a control box for controlling the attitude adjustment subsystem.

[0014] Preferably, the bottom of the yaw attitude adjustment platform is connected to multiple omnidirectional ball supports, which are fixedly connected to the surface of the main frame, and the slewing support is fixedly connected to the middle of the main frame.

[0015] Preferably, the pitch subsystem includes a chassis, with a first support frame fixedly installed on both sides of one end of the chassis and a second support frame fixedly installed on both sides of the other end. The first and second support frames are used to support the antenna.

[0016] Preferably, a push rod hinge support is connected to one side of the first support frame on the chassis, and an electric push rod is connected to the push rod hinge support. The bottom end of the antenna is connected to the top end of the electric push rod by a pin.

[0017] Preferably, a tilting drive motor for driving the electric actuator is provided on the outer side of the electric actuator, and a planetary reducer is provided between the tilting drive motor and the electric actuator. The output shaft of the planetary reducer is connected to the input shaft of the electric actuator through a coupling.

[0018] Preferably, a bracket for supporting the electric actuator is provided on the chassis below the electric actuator, and a support beam for preventing the antenna from tipping over is fixedly connected to one end of the chassis.

[0019] Preferably, the yaw attitude adjustment platform has multiple mounting bases installed on its side, and the chassis has multiple connecting plates installed on its side. The multiple mounting bases and multiple connecting plates are fastened together by screws.

[0020] According to the antenna attitude precision adjustment device of the present invention, attitude conversion can be realized during antenna assembly and testing, and antenna can be transferred between sites. This effectively realizes antenna attitude conversion during antenna assembly, greatly saves manpower and material resources, and improves the efficiency of antenna assembly. Attached Figure Description

[0021] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application:

[0022] Figure 1 This is a schematic diagram of the overall structure of an antenna attitude precision adjustment device according to one embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the posture adjustment subsystem according to one embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the roll attitude adjustment mechanism according to one embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of a horizontal displacement mechanism according to one embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the pitch subsystem according to one embodiment of the present invention;

[0027] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0028] Figure 7 This is a schematic diagram of the transfer and pitching subsystem of an omnidirectional moving tooling system according to one embodiment of the present invention.

[0029] In the diagram: 1. Attitude adjustment subsystem; 2. Rolling attitude adjustment mechanism; 21. Main frame; 22. First screw jack; 23. Support block; 24. Rolling motor; 25. Casters; 26. Yaw limit block; 3. Horizontal displacement mechanism; 31. Base; 32. Guide rail; 33. Limit block; 34. Slider; 35. Mounting base; 4. Distance sensor; 5. Tilt sensor; 6. Control box; 7. Yaw attitude adjustment mechanism; 71. Yaw attitude adjustment platform; 72. 73. Omnidirectional ball support; 8. Rotary support; 9. Inverted L-shaped mounting base; 10. Mounting plate; 11. Pitch subsystem; 12. Chassis; 13. First support frame; 14. Second support frame; 15. Push rod hinge support; 16. Electric push rod; 17. Tilting drive motor; 18. Planetary reducer; 19. Coupling; 100. Bracket; 11. Support beam; 12. L-shaped connecting seat; 13. Antenna; 14. Omnidirectional moving tooling system. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-6 The present invention provides an antenna attitude precision adjustment device, including an attitude adjustment subsystem 1, an elevation subsystem 10, and an omnidirectional moving fixture system 15.

[0032] Antenna 14 is mounted on elevation subsystem 10, which is used to adjust the elevation attitude of antenna 14 and is connected to attitude adjustment subsystem 1 and omnidirectional moving fixture system 15, respectively. Elevation subsystem 10 can adjust the elevation attitude of antenna 14 from 4.5° to 92°, and can achieve precise adjustment of antenna vertical elevation attitude within a range of ±2°.

[0033] The attitude adjustment subsystem 1 is located below the pitch subsystem 10 and is used to adjust the azimuth attitude (yaw attitude) and roll attitude (horizontal attitude on the left and right sides) of the antenna 14, enabling precise adjustment of the antenna 14 within the range of ±2° of azimuth attitude and ±2° of roll attitude.

[0034] An omnidirectional moving fixture system 15 is positioned below the elevation subsystem 10 and the attitude adjustment subsystem 1, enabling omnidirectional movement for the transport of the antenna 14. The omnidirectional movement of the fixture system 15 includes straight, horizontal, diagonal, head-swinging, tail-swinging, and center-rotation movements. As an example, the omnidirectional moving fixture system 15 can be an omnidirectional transport vehicle with a positioning accuracy of ±1mm and a load capacity of 20 tons. The omnidirectional moving fixture system 15 effectively solves the problem of transporting the antenna 14 between the assembly and testing areas, saving labor costs and significantly improving product transport efficiency.

[0035] The attitude adjustment subsystem 1 includes a main frame 21 and a roll attitude adjustment mechanism 2 and a yaw attitude adjustment mechanism 7 disposed on the main frame 21. The roll attitude adjustment mechanism 2 is used to adjust the roll attitude of the antenna 14, and the yaw attitude adjustment mechanism 7 is used to adjust the azimuth attitude of the antenna 14.

[0036] exist Figure 3 In this embodiment, the roll attitude adjustment mechanism 2 includes a yaw limit block 26, a first spiral lift 22, and a horizontal displacement mechanism 3. Yaw limit blocks 26 are screwed to the four corners of the main frame 21 to control the horizontal rotation (around the Z-axis) of the yaw attitude adjustment platform 71. Four casters 25 are provided below the main frame 21, and four first spiral lifts 22 are installed on the outer side of the main frame 21 to raise and lower the main frame 21. Two second spiral lifts for auxiliary support are provided in the middle of the main frame 21, and support blocks 23 are provided below the second spiral lifts. Roll motors 24 are provided on the sides of the four first spiral lifts 22, and a horizontal displacement mechanism 3 is provided at the bottom of the first spiral lifts 22 to compensate for the horizontal displacement generated during attitude adjustment. The two second spiral lifts in the middle of the main frame 21 are adjusted by handwheels and are used for auxiliary support when the main frame 21 is stored. Four casters 25 are provided below the main frame 21. In the unloaded state, the casters 25 can be used to transfer the attitude adjustment subsystem 1. The main frame 21 is connected to the yaw attitude adjustment platform 71 through the slewing support 73 and the universal ball support 72 described later. Limit switches are installed at both ends of the stroke of the first spiral lift 22, and there are mechanical limit switches for double limit protection. Emergency stop buttons are installed at both ends of the main frame 21. Pressing the emergency stop will cut off the power and brake to ensure safety.

[0037] exist Figure 4In this embodiment, the horizontal displacement mechanism 3 includes a base 31, with two guide rails 32 mounted above the base 31. Limit blocks 33 are provided at the front and rear ends of the guide rails 32. A slider 34 is slidably connected to the guide rails 32, and a mounting base 35 is screwed to the top of the slider 34. A screw jack 22 is installed inside the mounting base 35. The horizontal displacement mechanism 3 is connected and fixed to the screw jack 22 to release horizontal stress during use. The screw jack 22 on one side of the main frame 21 is equipped with a horizontal displacement mechanism 3 to compensate for the horizontal displacement generated during the adjustment of the two screw jacks 22. The guide rails 32 are of model HGH65HA, and the sliders 34 are mounted on the guide rails 32. The basic dynamic load is 208.36KN, the basic static load is 457.15KN, and the stroke is ±40mm.

[0038] Furthermore, a ranging sensor 4 is installed at the front end of the main frame 21 to assist in detecting the yaw angle, and a tilt sensor 5 is installed at the rear end of the main frame 21 to detect the horizontal angle of the attitude adjustment subsystem 1. The sensor can monitor and adjust the angle in real time, and its accuracy is ±0.01°. A control box 6 is also installed at the front end of the main frame 21 to control the attitude adjustment subsystem 1.

[0039] The yaw attitude adjustment mechanism 7 includes a yaw attitude adjustment platform 71 and a slewing support 73 located in the middle of the yaw attitude adjustment platform 71. The slewing support 73 enables the yaw attitude adjustment platform 71 to rotate horizontally relative to the main frame 21. Figure 2 In this embodiment, the bottom of the yaw attitude adjustment platform 71 is connected to 18 omnidirectional ball supports 72, and the middle of the yaw attitude adjustment platform 71 is connected to a slewing support 73. The omnidirectional ball supports 72 are fixedly connected to the surface of the main frame 21, and the slewing support 73 is fixedly connected to the middle of the main frame 21. The yaw attitude adjustment platform 71 in the yaw attitude adjustment mechanism 7 is fixed on the slewing support 73, and the slewing support 73 is fastened to the main frame 21. An interface for fixing to the pitch subsystem 10 is provided on the top. This interface matches the interface of the pitch subsystem 10. When adjusting the yaw attitude, the drive motor rotates to drive the slewing support 73 to rotate, thereby realizing the rotation of the yaw attitude adjustment platform 71. The rated load of the omnidirectional ball supports 72 is 2580 kg, which is used to assist in supporting the yaw attitude adjustment platform 71.

[0040] In addition, eight L-shaped mounting seats 8 are screwed on the side of the yaw attitude adjustment platform 71, and a mounting plate 9 is screwed to the middle position of the yaw attitude adjustment platform 71. The eight L-shaped mounting seats 8 screwed on the side of the yaw attitude adjustment platform 71 are fastened to the eight L-shaped connecting plates 13 mounted on the side of the chassis 101 of the pitch subsystem 10 by screws. The bottom of the pitch subsystem 10 is fastened to the mounting plate 9 of the attitude adjustment subsystem 1 by screws. The guide pin holes provided at the diagonal positions of the L-shaped mounting seats 8 serve as guides during the installation of the two systems.

[0041] exist Figure 5 and Figure 6 In this embodiment, the pitch subsystem 10 includes a chassis 101. First support frames 102 are fixedly mounted on both sides of one end of the chassis 101, and second support frames 103 are fixedly mounted on both sides of the other end of the chassis 101. A push rod hinge support 104 is screwed onto one side of the chassis 101 located on the first support frame 102, and an electric push rod 105 is connected to the push rod hinge support 104. When the antenna 14 is at a 4.5° position, the electric push rod 105 is in its initial position. As the electric push rod 105 extends, the antenna 14 begins to rotate upwards. When the antenna 14 rotates to 92°, the electric push rod 105 is in its final position, thus realizing the rotation action of the antenna 14 from 4.5° to 92°. When stored for a long period, the antenna 14 is supported by two second support frames 103 to prevent the electric push rod 105 from being subjected to long-term stress.

[0042] The pitch subsystem 10 can be used independently or in combination with the omnidirectional moving tooling system 15. For example... Figure 7 As shown, the pitch subsystem 10 is used in combination with the omnidirectional moving fixture system 15. The omnidirectional moving fixture system 15 transports the pitch subsystem 10 on which the antenna 14 is installed, completes the transfer of the antenna 14 in different work positions and factory rooms, and completes the coarse positioning of the antenna 14 in the two-dimensional plane at the predetermined work position, and completes the coarse horizontal (yaw) positioning of the antenna on the left and right sides.

[0043] In addition, a tilting drive motor 106 is installed on the outside of the housing of the electric actuator 105. A planetary reducer 107 is installed between the tilting drive motor 106 and the electric actuator 105. The planetary reducer 107 is connected to the outside of the housing of the electric actuator 105 through a retainer. The output shaft of the planetary reducer 107 is connected to the input shaft of the electric actuator 105 through a coupling 108. Emergency stop buttons are installed on both sides of the chassis 101. Since the drive motor has a holding brake, pressing the emergency stop button can disconnect the power and engage the brake. Furthermore, the worm gear inside the housing of the electric actuator 105 also has a self-locking function to ensure safety.

[0044] Furthermore, a bracket 11 is installed on the chassis 101 below the electric actuator 105. A support beam 12 is connected to one end of the chassis 101, and eight L-shaped connectors 13 are screwed to the side of the chassis 101. The support beam 12 is fastened to the chassis 101 with screws. When the antenna 14 is fully erected, the support beam 12 prevents the entire system from tipping over due to changes in the center position of the antenna 14 on the elevation subsystem 10. When replacing the antenna, the electric actuator 105 is supported by the bracket 11 to keep the actuator suspended in the air so as to maintain its position in space.

[0045] Furthermore, an antenna 14 is mounted on the first support frame 102 and the second support frame 103. The first support frame 102 is hinged to the bottom of the antenna 14, and the bottom of the antenna 14 is connected to the top of the electric push rod 105 by a pivot pin.

[0046] In use, the antenna attitude precision adjustment device of the present invention is installed by connecting the elevation subsystem 10 and the attitude adjustment subsystem 1, and then installing it with the omnidirectional moving fixture system 15. The omnidirectional moving fixture system 15 enables omnidirectional movement, facilitating the transfer of the antenna 14 between the assembly and testing sites. When attitude adjustment is required, the two second spiral lifts at the middle position of the main frame 21 are lifted off the ground, and the first spiral lift 22 on one side of the main frame 21 is adjusted to move up and down, causing the main frame 21 to rotate around the ball joint of the first spiral lift 22 on the other side of the main frame 21, thereby adjusting the roll attitude of the antenna 14. The horizontal displacement mechanism 3 of the first spiral lift 22 is used for... To compensate for the horizontal displacement generated during the attitude adjustment of the first spiral lift 22, the slewing support 73 can adjust the antenna 14 to rotate around the Z-axis during yaw attitude adjustment. In conjunction with the first spiral lift 22 at the four corners of the attitude adjustment subsystem 1, the yaw attitude adjustment platform 71 is rotated to ensure that the plane of the antenna 14 being tested is parallel to the YZ plane. This ensures that the entire antenna 14 being tested is orthogonal to the test probe during anechoic chamber testing. When the antenna 14 needs to be pitched, the flip drive motor 106 is started to control the electric push rod 105 to extend and retract synchronously, thereby raising and lowering the antenna. At the same time, in order to ensure that the single-end electric push rod 105 can be finely adjusted, the angle between one side of the antenna 14 and the horizontal plane XY can be adjusted by controlling the rotation of the single-end flip drive motor 106.

[0047] The antenna attitude precision adjustment device according to the above embodiments of the present invention has at least the following beneficial effects:

[0048] (1) The pitch and attitude adjustment subsystems are set up to realize the automatic and flexible adjustment of the antenna pitch and horizontal attitude during the installation and testing process.

[0049] (2) The pitch subsystem can be set to adjust the pitch of the antenna from 4.5° to 92°, which can simultaneously meet the requirements of erection, deployment and anechoic chamber testing, and achieve precise adjustment of the antenna's vertical pitch attitude within a range of ±2°.

[0050] (3) Through the set attitude adjustment subsystem, the antenna can be precisely adjusted by ±2° in the roll direction and by ±2° in the flip direction. This solves the problem of high position accuracy requirements when the antenna is adjusted to the assembly and testing state, reduces the difficulty of the antenna to the testing state, and at the same time greatly reduces the workload of personnel, thus achieving cost reduction and efficiency improvement.

[0051] (4) The omnidirectional mobile tooling system effectively solved the problem of transferring products such as antennas between the final assembly and testing sites, saving labor costs and greatly improving the efficiency of product transfer.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for precise adjustment of antenna attitude, characterized in that, It includes an attitude adjustment subsystem (1), a pitch subsystem (10), and an omnidirectional moving tooling system (15). The pitch subsystem (10) is used to adjust the pitch attitude of the antenna (14), and is connected to the attitude adjustment subsystem (1) and the omnidirectional moving fixture system (15) respectively. The antenna (14) is mounted on the pitch subsystem (10). The omnidirectional moving fixture system (15) is located below the pitch subsystem (10) and the attitude adjustment subsystem (1), and can move in all directions for the transfer of the antenna (14). The attitude adjustment subsystem (1) is located below the pitch subsystem (10), including a main frame (21) and a roll attitude adjustment mechanism (2) and a yaw attitude adjustment mechanism (7) located on the main frame (21). The roll attitude adjustment mechanism (2) is used to adjust the roll attitude of the antenna (14), and the yaw attitude adjustment mechanism (7) is used to adjust the azimuth attitude of the antenna (14). The yaw attitude adjustment mechanism (7) includes a yaw attitude adjustment platform (71) and a slewing support (73) located in the middle of the yaw attitude adjustment platform (71). The slewing support (73) enables the yaw attitude adjustment platform (71) to rotate horizontally relative to the main frame (21). The rolling attitude adjustment mechanism (2) includes a yaw limit block (26), a first spiral lift (22), and a horizontal displacement mechanism (3). The yaw limit block (26) is installed at the four corners of the main frame (21) to control the horizontal rotation of the yaw attitude adjustment platform (71). The first spiral lift (22) is installed at the four corners of the main frame (21) to raise and lower the main frame (21). The horizontal displacement mechanism (3) is fixedly connected to the first spiral lift (22) to compensate for the horizontal displacement of the first spiral lift (22). The horizontal displacement mechanism (3) includes a base (31), a guide rail (32), a limit block (33), a slider (34), and a mounting base (35). Two guide rails (32) are provided above the base (31). Limit blocks (33) are provided at the front and rear ends of the guide rails (32). A slider (34) is slidably connected to the guide rails (32). The top of the slider (34) is screwed to the mounting base (35). A first screw jack (22) is installed inside the mounting base (35).

2. The antenna attitude precision adjustment device according to claim 1, characterized in that: Four casters (25) are provided below the main frame (21). Two second spiral lifts for auxiliary support are provided in the middle of the main frame (21). A support block (23) is provided below the second spiral lift. A rolling motor (24) for driving the first spiral lift (22) is provided on the side of the first spiral lift (22).

3. The antenna attitude precision adjustment device according to claim 1 or 2, characterized in that: The front end of the main frame (21) is equipped with a ranging sensor (4) for detecting the yaw angle, the rear end of the main frame (21) is equipped with a tilt sensor (5) for detecting the horizontal angle of the attitude adjustment subsystem (1), and the front end of the main frame (21) is also equipped with a control box (6) for controlling the attitude adjustment subsystem (1).

4. The antenna attitude precision adjustment device according to claim 1 or 2, characterized in that: The bottom of the yaw attitude adjustment platform (71) is connected to multiple omnidirectional ball supports (72), which are fixedly connected to the surface of the main frame (21), and the slewing support (73) is fixedly connected to the middle of the main frame (21).

5. The antenna attitude precision adjustment device according to claim 1 or 2, characterized in that: The pitch subsystem (10) includes a chassis (101). A first support frame (102) is fixedly installed on both sides of one end of the chassis (101), and a second support frame (103) is fixedly installed on both sides of the other end. The first support frame (102) and the second support frame (103) are used to support the antenna (14).

6. The antenna attitude precision adjustment device according to claim 5, characterized in that: A push rod hinge support (104) is connected to one side of the first support frame (102) on the chassis (101). An electric push rod (105) is connected to the push rod hinge support (104). The bottom end of the antenna (14) is connected to the top end of the electric push rod (105) by a pin.

7. The antenna attitude precision adjustment device according to claim 6, characterized in that: A tilting drive motor (106) for driving the electric push rod (105) is provided on the outside of the electric push rod (105). A planetary reducer (107) is provided between the tilting drive motor (106) and the electric push rod (105). The output shaft of the planetary reducer (107) is connected to the input shaft of the electric push rod (105) through a coupling (108).

8. The antenna attitude precision adjustment device according to claim 7, characterized in that: A bracket (11) for supporting the electric push rod (105) is provided on the chassis (101) below the electric push rod (105), and a support beam (12) for preventing the antenna (14) from tipping over is fixedly connected to one end of the chassis (101).

9. The antenna attitude precision adjustment device according to claim 1 or 2, characterized in that: The yaw attitude adjustment platform (71) has multiple L-shaped mounting seats (8) installed on its side, and the chassis 101 has multiple L-shaped connecting plates (13) installed on its side. The multiple L-shaped mounting seats (8) and multiple L-shaped connecting plates (13) are fastened together by screws.

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