High-precision antenna turntable based on slewing reducer

Abstract

The utility model discloses a high accuracy antenna rotary table based on rotary speed reducer belongs to antenna equipment field, aims at solving the problem of small motion angle range of traditional rotary table, poor adaptability, it includes base, rotary speed reducer, motor, driving axle, protection box, radar antenna and drive mechanism, the protection box is equipped with the upper and lower helical gear of intermeshing and forms coaxial counter -rotating mechanism, the connecting rod is constituted with the shaft and the eccentric shaft transmission structure, and the corner of pivot, the inclined ring and the limiting piece cooperation design are matched, and motor power is passed through the transmission of speed reducer, and the eccentric shaft structure is worked in cooperation with the drive gear transmission, breaks through the angle limit of traditional rotary table, realizes radar antenna wide range multi -angle high accuracy circumferential motion, and adapts complex communication scene demand.

Description

Technical Field

[0001] This utility model belongs to the field of antenna equipment technology, specifically referring to a high-precision antenna turntable based on a rotary reducer. Background Technology

[0002] The antenna turntable is the core equipment for controlling the turning of radar antennas. Its accuracy and angle range directly affect communication quality. Traditional antenna turntables have some shortcomings, such as:

[0003] Most traditional turntables use a single-axis transmission structure, which can only achieve unidirectional rotation in the horizontal or vertical direction. They are unable to complete multi-angle circular motion and cannot cover the all-round signal capture needs in complex communication scenarios, resulting in extremely poor adaptability. Furthermore, the transmission mechanism design of traditional turntables is fixed, and the angle adjustment range is usually limited to within 180°. When facing scenarios that require 360° signal coverage without dead angles, they cannot meet the usage requirements at all. Multiple sets of equipment need to be added to work together, which not only increases the cost of equipment investment but also reduces the integration and stability of the communication system.

[0004] To address this issue, a high-precision antenna turntable based on a rotary reducer is proposed. Utility Model Content

[0005] The technical problem this invention aims to solve is the limited range of motion angles of traditional antenna turntables.

[0006] To achieve the above functions, the technical solution adopted by this utility model is as follows: A high-precision antenna turntable based on a rotary reducer includes a base and a rotary reducer disposed on one side of the base. A motor is fixedly disposed on one side of the rotary reducer, and a drive shaft is connected to the output end of the rotary reducer. A protective box is fixedly disposed on the upper end of the base, and the drive shaft extends into the interior of the protective box. A radar antenna is disposed on the upper end of the protective box, and a drive mechanism for driving the radar antenna to perform multi-angle circular motion is disposed inside the protective box.

[0007] Furthermore, the protective box is symmetrically semi-embedded and rotatably equipped with a lower helical gear and an upper helical gear at its upper and lower ends, and the lower helical gear is rotatably connected to the base. The upper end of the lower helical gear is fixedly connected to a rotating shaft, and the upper end of the rotating shaft is rotatably equipped with a connecting rod. The other end of the connecting rod is fixedly connected to the radar antenna.

[0008] Furthermore, the drive mechanism includes a bushing fixedly connected to the lower end of the upper helical gear, and the lower end of the bushing is rotatably connected to the lower helical gear. The drive shaft, the lower helical gear, and the upper helical gear mesh with each other to form a coaxial reversing mechanism. The rotating shaft passes through the bushing. The upper end of the upper helical gear is fixedly connected to a helical ring through a connecting rod. A limiting member is rotatably provided on the helical ring. The limiting member is composed of a circular plate and intersecting U-shaped plates. The connecting rod passes through the center of the limiting member.

[0009] Furthermore, the rotating shaft and connecting rod form an off-axis transmission structure, including a spherical groove at the upper end of the rotating shaft, the lower end of the connecting rod being spherically shaped and adapted to the spherical groove at the rotating shaft, the spherical groove having a limiting groove longitudinally opposite each other, and the two ends of the connecting rod having limiting blocks adapted to the limiting groove.

[0010] Furthermore, the connection between the rotating shaft and the radar antenna is provided with a corner to enable the radar antenna to move over a wider range.

[0011] Furthermore, the inclined ring has the same tilt angle as the radar antenna, and the two are connected by a ring rail and a slider for rotation.

[0012] The beneficial effects of this utility model by adopting the above structure are as follows:

[0013] A high-precision coaxial reversing mechanism is formed by the meshing transmission of the drive shaft and the upper and lower helical gears through the rotary reducer. The spherical fit of the off-axis transmission structure and the design of the spherical fit and the limiting groove in the off-axis transmission structure, combined with the angle optimization of the rotating shaft corner, the tilt adaptation of the inclined ring and the radar antenna, and the reverse rotation of the inclined ring and the limiting component, break through the traditional turntable motion angle limitation and realize the radar antenna's large-range multi-angle circular motion. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a high-precision antenna turntable based on a rotary reducer proposed in this scheme.

[0015] Figure 2 This is a cross-sectional view of the internal structure of the protective box for a high-precision antenna turntable based on a rotary reducer proposed in this scheme.

[0016] Figure 3 This paper presents a schematic diagram of the structure of some components of a high-precision antenna turntable based on a rotary reducer, as proposed in this solution. Figure 1 ;

[0017] Figure 4 This paper presents a schematic diagram of the structure of some components of a high-precision antenna turntable based on a rotary reducer, as proposed in this solution. Figure 2 ;

[0018] Figure 5 This paper presents a schematic diagram of the structure of some components of a high-precision antenna turntable based on a rotary reducer, as proposed in this solution. Figure 3 .

[0019] The components include: 1. base; 2. rotary reducer; 3. motor; 4. drive shaft; 5. protective box; 6. lower helical gear; 7. upper helical gear; 8. bushing; 9. helical ring; 10. rotating shaft; 11. connecting rod; 12. limiting component; 13. radar antenna; 14. limiting groove; and 15. limiting block.

[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example:

[0023] like Figures 1 to 5 As shown, in order to achieve the above functions, the technical solution adopted by this utility model is as follows: A high-precision antenna turntable based on a rotary reducer includes a base 1, a rotary reducer 2 is provided on one side of the base 1, a motor 3 is fixedly provided on one side of the rotary reducer 2, a drive shaft 4 is connected to the output end of the rotary reducer 2, a protective box 5 is fixedly provided on the upper end of the base 1, the drive shaft 4 extends into the interior of the protective box 5, a radar antenna 13 is provided on the upper end of the protective box 5, and a drive mechanism for driving the radar antenna 13 to perform multi-angle circular motion is provided inside the protective box 5.

[0024] like Figures 1 to 5 As shown, the upper and lower ends of the protective box 5 are symmetrically semi-embedded and rotatably equipped with a lower helical gear 6 and an upper helical gear 7. The lower helical gear 6 is rotatably connected to the base 1. The upper end of the lower helical gear 6 is fixedly connected to a rotating shaft 10. The upper end of the rotating shaft 10 is rotatably equipped with a connecting rod 11. The other end of the connecting rod 11 is fixedly connected to the radar antenna 13. A corner is provided at the connection between the rotating shaft 10 and the radar antenna 13.

[0025] like Figures 1 to 5 As shown, the drive mechanism includes a bushing 8 fixedly connected to the lower end of the upper helical gear 7. The lower end of the bushing 8 is rotatably connected to the lower helical gear 6. The drive shaft 4, the lower helical gear 6, and the upper helical gear 7 mesh with each other to form a coaxial reversing mechanism. The rotating shaft 10 passes through the bushing 8. The upper end of the upper helical gear 7 is fixedly connected to a helical ring 9 through a connecting rod. A limiting member 12 is rotatably arranged on the helical ring 9. The limiting member 12 is composed of a circular plate and intersecting U-shaped plates. The connecting rod 11 passes through the center of the limiting member 12.

[0026] The rotating shaft 10 and the connecting rod 11 form an off-axis transmission structure. The upper end of the rotating shaft 10 is provided with a spherical groove, and the lower end of the connecting rod 11 is spherically shaped and adapted to the spherical groove. The spherical groove is longitudinally provided with a limiting groove 14. The two ends of the connecting rod 11 are provided with limiting blocks 15 adapted to the limiting groove 14. The inclined ring 9 and the radar antenna 13 have the same tilt angle, and the two are connected by a ring rail and a slider.

[0027] After the motor 3 starts, the power is reduced by the rotary reducer 2 and transmitted to the drive shaft 4. The drive shaft 4 drives the drive mechanism in the protection box 5 to operate. When the lower helical gear 6 rotates, it drives the rotating shaft 10 to rotate synchronously. The rotating shaft 10 drives the radar antenna 13 to rotate through the connecting rod 11. The corner design at the connection can expand the movement range of the radar antenna 13 and meet the requirements of multi-angle circular motion. When the drive shaft 4 rotates, it drives the meshing lower helical gear 6 and upper helical gear 7 to rotate in opposite directions on the same axis. The upper helical gear 7 drives the inclined ring 9 to rotate synchronously. The inclined ring 9 limits and guides the connecting rod 11 through the limiting member 12. With the spherical groove, limiting groove 14 and limiting block 15 of the rotating shaft 10 and the connecting rod 11, the high-precision multi-angle movement of the radar antenna 13 is realized. The connection method of the ring rail and the slider ensures that the inclined ring 9 and the radar antenna 13 move synchronously, improving the stability and accuracy of the turntable operation.

[0028] 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.

[0029] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A high-precision antenna turntable based on a rotary reducer, comprising a base (1) and a rotary reducer (2) disposed on one side of the base (1), characterized in that: A motor (3) is fixedly installed on one side of the rotary reducer (2). The output end of the rotary reducer (2) is connected to a drive shaft (4). A protective box (5) is fixedly installed on the upper end of the base (1), and the drive shaft (4) extends into the protective box (5). A radar antenna (13) is installed on the upper end of the protective box (5), and a drive mechanism for driving the radar antenna (13) to perform multi-angle circular motion is installed inside the protective box (5).

2. The high-precision antenna turntable based on a rotary reducer according to claim 1, characterized in that: The protective box (5) is symmetrically semi-embedded and rotatably equipped with a lower helical gear (6) and an upper helical gear (7) at its upper and lower ends. The lower helical gear (6) is rotatably connected to the base (1). The upper end of the lower helical gear (6) is fixedly connected to a rotating shaft (10), and the upper end of the rotating shaft (10) is rotatably equipped with a connecting rod (11). The other end of the connecting rod (11) is fixedly connected to the radar antenna (13).

3. A high-precision antenna turntable based on a rotary reducer according to claim 2, characterized in that: The drive mechanism includes a bushing (8) fixedly connected to the lower end of the upper helical gear (7), and the lower end of the bushing (8) is rotatably connected to the lower helical gear (6). The drive shaft (4), the lower helical gear (6), and the upper helical gear (7) mesh with each other to form a coaxial reversing mechanism. The rotating shaft (10) passes through the bushing (8). The upper end of the upper helical gear (7) is fixedly connected to a helical ring (9) through a connecting rod. A limiting member (12) is rotatably arranged on the helical ring (9). The limiting member (12) is composed of a circular plate and intersecting U-shaped plates. The connecting rod (11) passes through the center of the limiting member (12).

4. A high-precision antenna turntable based on a rotary reducer according to claim 3, characterized in that: The rotating shaft (10) and connecting rod (11) form an off-axis transmission structure, including a spherical groove at the upper end of the rotating shaft (10), the lower end of the connecting rod (11) is spherically shaped and adapted to the spherical groove at the rotating shaft (10), the spherical groove is longitudinally provided with a limiting groove (14), and the two ends of the connecting rod (11) are provided with limiting blocks (15) adapted to the limiting groove (14).

5. A high-precision antenna turntable based on a rotary reducer according to claim 2 or 4, characterized in that: The connection between the rotating shaft (10) and the radar antenna (13) is provided with a corner to enable the radar antenna (13) to move over a wider range.

6. A high-precision antenna turntable based on a rotary reducer according to claim 3, characterized in that: The inclined ring (9) has the same tilt angle as the radar antenna (13), and the two are connected by a ring rail and a slider.

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