High-rigidity large-rotation-angle A-C-E shipborne antenna pedestal

Abstract

The invention discloses a high-rigidity large-rotation-angle A-C-E shipborne antenna pedestal. The high-rigidity large-rotation-angle A-C-E shipborne antenna pedestal is mainly composed of an orientation assembly, a crossing assembly, a pitching assembly and an antenna reflector. Different from shaft connection of a traditional seat frame, the cross assembly and the pitching assembly are connected through the turntable bearings, the structural rigidity of the seat frame is improved, and meanwhile wiring design is facilitated. According to the structural form of the crossed stand column, a left supporting lug and a right supporting lug support an inclined plate, the inclined plate inclines by 30 degrees relative to the vertical direction, namely, a crossed shaft inclines by 30 degrees from the horizontal position, on one hand, the crossed rotation range can be enlarged within a limited movement envelope, and on the other hand, the cross sectional area of the crossed stand column can be increased; the contact area between the bottom of the cross column and the azimuth turntable is increased, so that the structural rigidity of the seat frame is improved. According to the A-C-E seat frame, improvement and optimization are carried out on the basis of a traditional A-C-E seat frame, the structural rigidity is remarkably improved, and the tactical use requirement of a large rotation range is met on the premise that the movement envelope is not increased.

Description

Technical Field

[0001] This invention relates to the field of shipborne antenna technology, and in particular to a shipborne ACE antenna mount. Background Technology

[0002] Low Earth Orbit (LEO) satellites offer advantages such as low latency, low path loss, and high bandwidth. With continuous optimization of manufacturing and launch technologies, LEO satellites can achieve global network coverage at a relatively low cost, demonstrating enormous development potential in the communications field. Compared to geostationary satellites, LEO satellites are closer to the ground and rapidly rise from below the horizon to the zenith and then descend during transit. This necessitates that the elevation angle range of shipborne antennas be as wide as possible to achieve full airspace coverage of LEO satellites.

[0003] In modern naval warfare, smaller vessels, with their high efficiency, flexibility, and adaptability to various mission scenarios, complement larger ships. They can conduct reconnaissance, early warning, and attack missions, providing support and protection for larger vessels. Furthermore, with increasing emphasis on maritime rights by various countries, a large number of smaller vessels are needed for near-shore patrols, surveillance, and anti-submarine warfare. Through optimized ship design and the integration of advanced equipment, the comprehensive combat capabilities of smaller vessels are continuously improving. As an indispensable communication device, the antenna system is crucial for the deployment of ship missions. However, when smaller vessels are sailing, they are affected by factors such as waves, resulting in relatively large roll and pitch amplitudes. To meet normal communication requirements, the antenna mount needs a larger range of rotation to compensate for the hull's rolling motion.

[0004] Based on the aforementioned application background and development needs, this invention will utilize an ACE-type mount to achieve a wide range of rotation for shipborne antennas. ACE mounts typically feature cross columns, with a cross axis connected to the cross columns via shaft holes, and a pitch arm extending from the front, with the antenna surface connected to the pitch arm via the pitch axis. This structural feature means that the weight of the cross components, pitch components, antenna reflector, and power amplifier, etc., is borne by the cross columns, resulting in poor rigidity of the ACE mount. Therefore, this invention will optimize and improve the structure of the traditional ACE mount, providing a high-rigidity, large-angle ACE shipborne antenna mount. Summary of the Invention

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: A high-rigidity, large-angle ACE shipborne antenna mount includes an azimuth assembly, a cross assembly, a pitch assembly, and an antenna reflector; the azimuth assembly includes a base 5, an azimuth turntable 6, and an azimuth drive device 9. The azimuth turntable 6 is located above the base 5, and the two are connected by the azimuth turntable bearing 7; the azimuth drive device 9 is installed on the upper surface of the azimuth turntable 6, and the drive gear at its output end passes through the azimuth turntable 6 and meshes with the external teeth of the azimuth turntable bearing 7; the rotor of the azimuth turntable bearing 7 is connected to the base, and the stator is connected to the azimuth turntable. The cross assembly is mounted on the upper surface of the azimuth turntable 6, and includes a cross column 11 and a cross drive device 12. The cross column has an angle of 30° with the azimuth rotation axis, one end of which is fixed on the azimuth turntable, and the other end is connected to the U-shaped frame 14 of the pitch assembly body through the cross turntable bearing 13. The cross drive device is fixedly mounted on the cross column 11, and the drive gear at its output end meshes with the external gear of the cross turntable bearing 13. The stator of the cross turntable bearing is mounted on the cross column, and the rotor is connected to the U-shaped frame 14 of the pitch assembly. The main body of the pitch assembly is a U-shaped frame 14; a pitch turntable bearing 15 is installed on the U-shaped frame, the rotor of the pitch turntable bearing is installed on the U-shaped frame, and the stator is connected to the pitch right support arm 16 on its inner side; a pitch drive device 19 is provided on the pitch right support arm, and the output gear of the pitch drive device 19 meshes with the external gear on the pitch turntable bearing 15. The U-shaped frame is also provided with a left pitch support arm 17, which is connected to the U-shaped frame by a bearing and is set opposite to the right pitch support arm 16; the antenna reflector is installed on the left pitch support arm 17 and the right pitch support arm 16.

[0006] Furthermore, the main body of the cross column is an inclined plate; the back of the inclined plate is provided with two parallel lugs; the two lugs are perpendicular to the inclined plate; the outer side of the lugs is provided with grooves for mounting equipment; the lugs are also provided with circular through holes for cable routing.

[0007] Furthermore, a slip ring 8 is provided at the center of the azimuth turntable.

[0008] The high-rigidity, large-angle ACE shipborne antenna mount involved in this invention has the following characteristics: 1. The cross component adopts an inclined design, that is, the cross axis is tilted 30° from the horizontal position, which can increase the effective range of motion of the cross axis, enabling the antenna to maintain accurate tracking of the target even when the carrier attitude is large, avoiding cross-limiting situations, and ensuring the continuity and stability of communication.

[0009] 2. The cross components adopt an inclined design, which allows for more design space for the cross columns, effectively increasing the cross column cross area and improving the structural rigidity of the frame.

[0010] 2. The cross axis and pitch axis are orthogonal in space. After tilting by 30°, the secant compensation effect can be used to enable the antenna to smoothly and reliably track targets over the zenith, reducing the requirements for antenna performance.

[0011] 4. Unlike traditional antenna mounts that use shaft connections, this one uses turntable bearings for both cross and elevation connections, which improves the rigidity of the mount structure and also facilitates cable routing design. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the orientation component of the present invention; Figure 3 This is a schematic diagram of the cross component of the present invention; Figure 4 This is a schematic diagram of the pitch component of the present invention; Figure 5 This is a schematic diagram of the cross pillar of the present invention.

[0013] Explanation of reference numerals in the attached drawings: Azimuth component 1, Cross component 2, Elevation component 3, Antenna reflector 4, Base 5, Azimuth turntable 6, Azimuth turntable bearing 7, Slip ring 8, Azimuth drive device 9, Zero-position calibration device 10, Cross column 11, Cross drive device 12, Cross turntable bearing 13, U-shaped frame 14, Elevation turntable bearing 15, Right elevation support arm 16, Left elevation support arm 17, Support arm connecting plate 18, and Elevation drive device 19. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings.

[0015] This embodiment includes an azimuth component 1, a cross component 2, a pitch component 3, and an antenna reflector 4.

[0016] The overall layout of the base is as follows: the azimuth component 1 is located at the bottom of the base, the cross component 2 is installed above the azimuth component 1 by screws and rotates together with the azimuth component 1; the elevation component 3 is connected to the cross component 2 through a turntable bearing and can rotate relative to the cross component 2; the antenna reflector 4 is connected to the elevation component 3 through a turntable bearing and can rotate relative to the elevation component 3.

[0017] The orientation component 1 consists of a base 5, an orientation turntable 6, an orientation turntable bearing 7, a slip ring 8, an orientation drive device 9, and a zero-position calibration device 10.

[0018] The base 5 and the azimuth turntable 6 are connected by an azimuth turntable bearing 7. The azimuth drive device 9 is installed on the azimuth turntable 6 and can drive the azimuth turntable 6 to rotate relative to the base 5. The slip ring 8 is located at the center of the azimuth assembly 1. The stator is fixedly connected to the base 5 and the rotor is fixedly connected to the azimuth turntable 6, thereby ensuring normal communication under continuous azimuth rotation of 360°. The zero-position calibration device 10 is installed on the azimuth turntable 6 and cooperates with the sensing column on the base 5 to detect the initial position of the azimuth rotation.

[0019] The cross assembly 2 consists of a cross column 11, a cross drive device 12, and a cross turntable bearing 13.

[0020] The cross column 11 is connected to the pitch assembly 3 via a cross turntable bearing 13, which has higher rigidity than a shaft connection. In addition, the enlarged center hole facilitates the passage of cables. The cross drive device 12 is installed on the back of the cross column 11 and is used to drive the pitch assembly 3 to rotate.

[0021] Furthermore, the cross column 11 is structured with two lugs on the left and right sides supporting an inclined plate, which is tilted at 30° relative to the vertical direction. This design can increase the rotation range of the cross axis within a limited motion envelope, increase the cross-sectional area of ​​the cross column 11 itself, and increase the contact area between the bottom of the cross column 11 and the orientation turntable 6, thereby improving the rigidity of the frame structure.

[0022] Furthermore, the bottom of the cross column 11 and the middle of the two ears are "door" shaped through holes, and there is a circular through hole at the top and bottom of each ear. These through holes are mainly used for cable routing design; the outer side of the two ears is a groove structure for installing equipment and increasing space utilization.

[0023] The pitch assembly 3 consists of a U-shaped frame 14, a pitch turntable bearing 15, a right pitch support arm 16, a left pitch support arm 17, a support arm connecting plate 18, and a pitch drive device 19.

[0024] The right pitch support arm 16 is mounted on the right side of the U-shaped frame 14 via a pitch turntable bearing 15, and the left pitch support arm 17 is mounted on the left side of the U-shaped frame 14 via a shaft. The support arm connecting plate 18 connects the right pitch support arm 16 and the left pitch support arm 17 into one unit with screws. The pitch drive device 19 is mounted on the right pitch support arm 16 and is used to drive the antenna reflector 4 to rotate.

[0025] The following is a more specific example: like Figure 1The invention shown is a high-rigidity, large-angle ACE shipborne antenna mount, comprising four main parts: an azimuth assembly 1, a cross assembly 2, an elevation assembly 3, and an antenna reflector 4. The azimuth assembly 1 is located at the bottom of the mount. The cross assembly 2 is mounted on top of the azimuth assembly 1 with screws and rotates with it. The elevation assembly 3 is connected to the cross assembly 2 via a turntable bearing and can rotate relative to the cross assembly 2. The antenna reflector 4 is connected to the elevation assembly 3 via a turntable bearing and can rotate relative to the elevation assembly 3.

[0026] Unlike the traditional frame's shaft connection, both the cross assembly 2 and the pitch assembly 3 are connected using turntable bearings, which improves the frame's structural rigidity and also facilitates cable routing design.

[0027] Specifically, such as Figure 2 As shown, the azimuth component 1 consists of a base 5, an azimuth turntable 6, an azimuth turntable bearing 7, a slip ring 8, an azimuth drive device 9, and a zero-position calibration device 10. The base 5 and the azimuth turntable 6 are connected by the azimuth turntable bearing 7. The azimuth drive device 9 is mounted on the azimuth turntable 6 and can drive the azimuth turntable 6 to rotate relative to the base 5. The slip ring 8 is located at the center of the azimuth component 1, with its stator fixed to the base 5 and its rotor fixed to the azimuth turntable 6, thus ensuring normal communication even with continuous 360° azimuth rotation. The zero-position calibration device 10 is mounted on the azimuth turntable 6 and cooperates with the sensing column on the base 5 to detect the initial position of the azimuth rotation.

[0028] like Figure 3 As shown, the cross assembly 2 consists of a cross column 11, a cross drive device 12, and a cross turntable bearing 13. The cross column 11 is connected to the pitch assembly 3 via the cross turntable bearing 13, and the cross drive device 12 is mounted on the back of the cross column 11 to drive the pitch assembly 3 to rotate.

[0029] The cross-column 11 structure consists of two lugs on the left and right sides supporting an inclined plate, such as... Figure 5 As shown, the inclined plate is tilted 30° relative to the vertical direction, meaning the cross axis is tilted 30° from the horizontal position. This design increases the rotation range of the cross axis within a limited motion envelope, and also increases the cross-sectional area of ​​the cross column 11 itself, as well as the contact area between the bottom of the cross column 11 and the orientation turntable 6, thereby improving the rigidity of the frame structure. Furthermore, the bottom of the cross column 11 and the middle of the two lugs have "door"-shaped through holes, and each lug has a circular through hole at the top and bottom. These through holes are mainly used for cable routing. The outer surfaces of the two lugs have groove structures for installing equipment, increasing space utilization.

[0030] like Figure 4As shown, the pitch assembly 3 consists of a U-shaped frame 14, a pitch turntable bearing 15, a right pitch support arm 16, a left pitch support arm 17, a support arm connecting plate 18, and a pitch drive device 19. The right pitch support arm 16 is mounted on the right side of the U-shaped frame 14 via the pitch turntable bearing 15, and the left pitch support arm 17 is mounted on the left side of the U-shaped frame 14 via a shaft. The support arm connecting plate 18 connects the right pitch support arm 16 and the left pitch support arm 17 into one unit with screws. The pitch drive device 19 is mounted on the right pitch support arm 16 and is used to drive the antenna reflector 4 to rotate.

[0031] In this embodiment, the main body of the turntable bearing consists of a stator and a rotor, with external teeth disposed on the rotor. The rotor of the azimuth turntable bearing 7 is connected to the base, and the stator is connected to the azimuth turntable; the stator of the cross turntable bearing is mounted on a cross column, and the rotor is connected to the U-shaped frame 14 of the pitch assembly; the rotor of the pitch turntable bearing is mounted on the U-shaped frame, and the stator is connected to the right pitch support arm 16 on its inner side.

[0032] Based on the above structural optimizations and improvements, a 0.42-meter diameter shipborne antenna can be arbitrarily rotated within a space with an outer contour of 530mm in diameter and 660mm in height, with an azimuth of 0° to +360°, an elevation of -10° to +120°, and an intersection of -45° to +45°.

[0033] The above description is merely one embodiment of the present invention and is not intended to limit the present invention.

Claims

1. A high-rigidity, large-angle ACE shipborne antenna mount, comprising an azimuth assembly, a cross assembly, a pitch assembly, and an antenna reflector; characterized in that, The orientation component includes a base (5), an orientation turntable (6), and an orientation drive device (9). The azimuth turntable (6) is located above the base (5), and the two are connected by an azimuth turntable bearing (7); the azimuth drive device (9) is installed on the upper surface of the azimuth turntable (6), and the drive gear at its output end passes through the azimuth turntable (6) and meshes with the external teeth of the azimuth turntable bearing (7); the rotor of the azimuth turntable bearing (7) is connected to the base, and the stator is connected to the azimuth turntable. The cross assembly is mounted on the upper surface of the azimuth turntable (6), and includes a cross column (11) and a cross drive device (12); the cross column is at an angle of 30° with the azimuth rotation axis, one end of which is fixed on the azimuth turntable, and the other end is connected to the U-shaped frame (14) of the pitch assembly body through the cross turntable bearing (13); the cross drive device is fixedly mounted on the cross column (11), and the drive gear at its output end meshes with the external gear of the cross turntable bearing (13); the stator of the cross turntable bearing is mounted on the cross column, and the rotor is connected to the U-shaped frame (14) of the pitch assembly; The main body of the pitch assembly is a U-shaped frame (14); a pitch turntable bearing (15) is installed on the U-shaped frame, the rotor of the pitch turntable bearing is installed on the U-shaped frame, and the stator is connected to the pitch right support arm (16) on its inner side; a pitch drive device (19) is provided on the pitch right support arm, and the output gear of the pitch drive device (19) meshes with the external gear on the pitch turntable bearing. The U-shaped frame is also provided with a left pitch support arm (17), which is connected to the U-shaped frame bearing and is set opposite to the right pitch support arm (16); the antenna reflector is installed on the left pitch support arm (17) and the right pitch support arm (16).

2. The high-rigidity, large-angle ACE shipborne antenna according to claim 1, characterized in that, The main body of the cross column is an inclined plate; the back of the inclined plate is provided with two parallel lugs; the two lugs are perpendicular to the inclined plate; the outer side of the lugs is provided with grooves for mounting equipment; the lugs are also provided with circular through holes for cable routing.

3. The high-rigidity, large-angle AEC shipborne antenna according to claim 1, characterized in that, The center of the azimuth turntable is also provided with a slip ring (8).

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