Modular turntable for laser communication
Patent Information
- Application Number
- CN202522406046.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-12
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-11-12
AI Technical Summary
[0004]在实际使用中发现，一体化结构的二维转台对整体框架的加工精度要求较高，需要通过复杂的多工序加工保证各个面之间的公差，制造难度较高，导致生产周期较长
1.方位模组与俯仰模组为相互独立的驱动与控制，能够对每个轴进行单独的校准与控制，从而实现激光光束的精确指向；方位模组与俯仰模组能够作为独立的单元进行设计、制造与维护，降低了整体制造的难度，同时也能够单独拆卸或更换模组，无需对整个结构进行维修，有效降低了维护时间与成本，提高了生产效率；
Smart Images
Figure CN224756664U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of tracking turntable technology, and in particular to a modular turntable for laser communication. Background Technology
[0002] As a core component capable of rotational adjustment in both azimuth and pitch dimensions, the two-dimensional turntable plays a vital role in fields such as laser communication and optical detection. In particular, the laser communication field places extremely high demands on the turntable's rotational accuracy, adjustment flexibility, and structural adaptability.
[0003] In related technologies, existing two-dimensional turntables generally adopt an integrated structural design, that is, the frame, motor, transmission components and other core components of the orientation adjustment structure and the pitch adjustment structure are all directly assembled onto the integral frame.
[0004] In practical use, it was found that the integrated two-dimensional turntable has high requirements for the machining accuracy of the overall frame. It requires complex multi-process machining to ensure the tolerance between each surface, which makes the manufacturing difficult and results in a long production cycle. Utility Model Content
[0005] To reduce the manufacturing difficulty of two-dimensional turntables, this application provides a modular turntable for laser communication, which has the effect of reducing the manufacturing difficulty of two-dimensional turntables.
[0006] This application provides a modular turntable for laser communication, which adopts the following technical solution: A modular turntable for laser communication includes: An azimuth module, comprising an azimuth base, an azimuth drive assembly mounted on the azimuth base, and an azimuth turntable rotatably mounted on the azimuth base, wherein the azimuth drive assembly drives the azimuth turntable to rotate. A pitch module, comprising a pitch base, a pitch drive assembly mounted on the pitch base, and a pitch turntable rotatably mounted on the pitch base, wherein the pitch drive assembly drives the pitch turntable to rotate. A connecting plate, one end of which is fixed to the azimuth turntable, and a pitch base fixed to the other end of the connecting plate, the pitch base being located on the side of the connecting plate away from the azimuth turntable.
[0007] By adopting the above technical solution, the azimuth module and the pitch module are driven and controlled independently, and each axis can be individually calibrated and controlled to achieve precise pointing of the laser beam. The azimuth module and the pitch module can be designed, manufactured and maintained as independent units, which reduces the difficulty of overall manufacturing. At the same time, the modules can be disassembled or replaced separately without repairing the entire structure, which effectively reduces maintenance time and cost and improves production efficiency.
[0008] Optionally, the azimuth drive assembly includes a worm gear, a worm meshing with the worm gear, and a drive motor. The worm gear is coaxially fixed with the azimuth turntable, and the drive motor is mounted on the outside of the azimuth base, driving the worm to rotate. The azimuth drive assembly has the same structure as the pitch drive assembly.
[0009] By adopting the above technical solution, the drive motor drives the worm gear to rotate, and through the meshing transmission between the worm gear and the worm wheel, the azimuth turntable and the connecting plate rotate synchronously, thereby enabling the pitch module to adjust the azimuth angle within a certain range; the pitch drive component drives the pitch turntable to rotate, which can adjust the pitch angle of the pitch turntable, realizing the flexible adjustment of the pitch turntable in multiple dimensions, thereby meeting the needs of laser communication in different directions.
[0010] Optionally, the worm is located inside the azimuth base, and the worm is located on the side of the azimuth worm wheel near the pitch base.
[0011] By adopting the above technical solution, integrating the worm gear and worm wheel inside the azimuth base, it is beneficial to avoid other structures, reduce mechanical wear, and extend service life.
[0012] Optionally, an orientation limiting plate is provided on the side of the orientation base away from the drive motor, and an orientation limiting block is provided on the side wall of the connecting plate. The orientation limiting plate and the orientation limiting block abut against each other on both sides to limit the rotation angle of the connecting plate.
[0013] By adopting the above technical solution, the azimuth limiting block rotates synchronously with the connecting plate. When the connecting plate rotates to the limit angle, the azimuth limiting block will abut against the azimuth limiting plate, causing the azimuth limiting block to stop rotating, thereby limiting the rotation angle of the connecting plate.
[0014] Optionally, the azimuth base is symmetrically provided with mounting structures for mounting drive motors and azimuth limiting plates on both sides, and the connecting plate is symmetrically provided with azimuth limiting blocks on both sides.
[0015] By adopting the above technical solution, the symmetrically arranged installation structure on both sides of the azimuth base provides a unified installation benchmark for the drive motor and the azimuth limit block, which is conducive to the rapid alignment and installation of the drive motor and the azimuth limit block, reduces installation time, and also helps to improve the versatility of the structure.
[0016] Optionally, a mounting plate is provided at one end of the pitch turntable near the azimuth turntable. The mounting plate is used to install optical components. A pitch limiting plate is provided on the side of the pitch base away from the connecting plate. A limiting groove is formed on the pitch limiting plate. A pitch limiting block is provided on the outer peripheral wall of the mounting plate. The pitch limiting block abuts against the inner wall of the limiting groove to limit the rotation angle of the mounting plate.
[0017] By adopting the above technical solution, when the pitch drive assembly drives the pitch turntable and the mounting plate to rotate, the pitch limit block rotates synchronously with the mounting plate. When the mounting plate rotates to abut against the inner wall of the limit groove, the pitch limit plate restricts the rotation of the mounting plate, thereby facilitating the control of the pitch rotation range of the mounting plate.
[0018] Optionally, a first shoulder is provided on one end of the connecting plate near the pitch base, and the side of the pitch base near the azimuth turntable abuts against the side wall of the first shoulder. A second shoulder is provided on the side of the pitch base near the drive motor of the pitch drive assembly, and the side of the second shoulder away from the drive motor abuts against the side wall of the connecting plate.
[0019] By adopting the above technical solution, the double contact positioning of the first shoulder, the second shoulder and the side wall of the pitch base ensures that the installation reference of the pitch module and the azimuth module is consistent, which is conducive to improving the installation accuracy of the pitch base.
[0020] Optionally, reinforcing ribs are provided on both sides of the connecting plate, with the two reinforcing ribs located at the end of the connecting plate near the pitch base.
[0021] By adopting the above technical solution, the reinforced ribs help to improve the structural strength of the connecting plate and reduce the deformation of the connecting plate.
[0022] Optionally, a weight-reducing groove is provided on the reinforcing rib plate on the side away from the pitch base.
[0023] By adopting the above technical solution and opening weight-reducing grooves, the overall weight of the connecting plate can be reduced, thus meeting the lightweight design requirements of the connecting plate.
[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. The azimuth module and the pitch module are driven and controlled independently, and each axis can be individually calibrated and controlled to achieve precise pointing of the laser beam. The azimuth module and the pitch module can be designed, manufactured and maintained as independent units, which reduces the difficulty of overall manufacturing. At the same time, the modules can be disassembled or replaced separately without repairing the entire structure, which effectively reduces maintenance time and costs and improves production efficiency. 2. The azimuth drive assembly and the pitch drive assembly have the same structure and both adopt a common design, which helps to improve production efficiency and reduce processing costs; 3. Limiting plate structures are provided on both the pitch base and the azimuth base to facilitate control of the rotation angle of the turntable. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of the modular turntable for laser communication in this application; Figure 2It is along Figure 1 Dissection video of AA (Chinese AA); Figure 3 It is along Figure 2 Sectional view of CC; Figure 4 It is along Figure 1 Sectional view of BB; Figure 5 yes Figure 1 Exploded view; Figure 6 yes Figure 5 Rear view; Figure 7 It is along Figure 2 A sectional view of DD.
[0026] Reference numerals: 1. Azimuth module; 101. Azimuth base; 102. Azimuth drive assembly; 103. Azimuth turntable; 2. Pitch module; 201. Pitch base; 202. Pitch drive assembly; 203. Pitch turntable; 3. Connecting plate; 4. Azimuth limiting plate; 5. Azimuth limiting block; 6. Mounting plate; 7. Pitch limiting plate; 8. Limiting groove; 9. Pitch limiting block; 10. First shoulder; 11. Second shoulder; 12. Reinforcing rib; 13. Weight reduction groove; 14. 15. Placement slot; 16. First bearing; 17. Support cylinder; 18. Support frame; 19. Coupling; 20. Adjusting seat; 21. First flange; 22. Second bearing; 23. Third bearing; 24. Lubricant opening baffle; 25. Bearing mounting seat; 26. Fourth bearing; 27. Bottom cover; 28. Fixing plate; 29. Connecting column; 30. Magnet; 31. Through hole; 32. Encoder; 33. Worm gear; 34. Worm; 35. Drive motor. Detailed Implementation
[0027] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.
[0028] This application discloses a modular turntable for laser communication, referring to... Figure 1 , Figure 2 , Figure 3The system includes an azimuth module 1, a pitch module 2, and a connecting plate 3. The azimuth module 1 includes an azimuth base 101, an azimuth drive assembly 102, and an azimuth turntable 103. The azimuth drive assembly 102 is mounted on the azimuth base 101, and the azimuth turntable 103 is rotatably mounted on the azimuth base 101. The azimuth drive assembly 102 drives the azimuth turntable 103 to rotate. The pitch module 2 includes a pitch base 201, a pitch drive assembly 202, and a pitch turntable 203. The pitch drive assembly 202 is mounted on the pitch base 201, and the pitch turntable 203 is rotatably mounted on the pitch base 201. The pitch drive assembly 202 drives the pitch turntable 203 to rotate. One end of the connecting plate 3 is fixed to the azimuth turntable 103, and the other end is fixed to the pitch base 201. The azimuth base 101 and the pitch base 201 are located on opposite sides of the connecting plate 3.
[0029] The azimuth module 1 and the pitch module 2 are independent modules that can be processed on different production lines. Each module controls the assembly tolerance of its internal components without having to consider the overall tolerance, which effectively reduces manufacturing difficulty and shortens the production cycle.
[0030] Reference Figure 2 The azimuth base 101 has a placement groove 14 on the side near the connecting plate 3. A first bearing 15 is installed in the placement groove 14. The azimuth turntable 103 is inserted into the inner ring of the first bearing 15. The azimuth turntable 103 is rotatably connected to the azimuth base 101 through the bearing. A support cylinder 16 is integrally formed on the side of the azimuth turntable 103 away from the connecting plate 3. The support cylinder 16 is located inside the azimuth base 101 and has a hollow structure inside.
[0031] Reference Figure 2 and Figure 4 The azimuth drive assembly 102 includes a worm gear 33, a worm 34, and a drive motor 35. The worm gear 33 is sleeved on the support cylinder 16 and is coaxially arranged with the azimuth turntable 103 and fixedly connected by bolts. The worm 34 is located on the side of the azimuth worm gear 33 near the pitch base 201 and is meshed with the worm gear 33. A support frame 17 is bolted to the outer side of the azimuth base 101, and the drive motor 35 is bolted to the support frame 17. A coupling 18 is fixed to the output shaft of the drive motor 35, and the end of the coupling 18 away from the drive motor 35 is fixed to the worm 34.
[0032] Reference Figure 4An adjusting seat 19 is inserted on the side of the azimuth base 101 away from the support frame 17. A first flange 20 is coaxially sleeved on the adjusting seat 19 and threadedly fixed to the azimuth base 101. The end of the worm gear 34 away from the support frame 17 is rotatably connected to the adjusting seat 19 through a second bearing 21, which is embedded in the adjusting seat 19. A second flange 22 is threadedly fixed on the side of the azimuth base 101 close to the support frame 17. A third bearing 23 is coaxially sleeved on the worm gear 34 and embedded in the second flange 22. The worm gear 34 passes through the second flange 22 and is fixed to the coupling 18.
[0033] Reference Figure 2 and Figure 4 A lubricant opening baffle 24 is bolted to the side of the azimuth base 101 near the pitch base 201. The lubricant opening baffle 24 is located on the side of the worm 34 away from the worm wheel 33. The lubricant opening baffle 24 is used to prevent the lubricant on the worm 34 or worm wheel 33 from leaking out.
[0034] Reference Figure 1 and Figure 5 An azimuth limiting plate 4 is threadedly fixed on the side of the azimuth base 101 away from the drive motor 35. An azimuth limiting block 5 is integrally formed on the side wall of the connecting plate 3. The azimuth limiting plate 4 and the azimuth limiting block 5 abut against each other on both sides to limit the rotation angle of the connecting plate 3. The abutting surface of the azimuth limiting plate 4 is a folded arc surface, so that the rotation range of the connecting plate 3 is ±6°.
[0035] Reference Figure 5 The directional base 101 has symmetrical mounting structures for mounting drive motors 35 and directional limiting plates 4 on both sides, and directional limiting blocks 5 are symmetrically mounted on both sides of the connecting plate 3. The positions of drive motors 35, directional limiting plates 4 and directional limiting blocks 5 can be replaced according to actual needs, which is convenient to adapt to the layout requirements of different scenarios and improve the flexibility of the structure.
[0036] Reference Figure 2 and Figure 6 A bearing mounting seat 25 is threadedly fixed to the side of the azimuth base 101 away from the connecting plate 3, and a fourth bearing 26 is installed inside the bearing mounting seat 25. A bottom cover 27 is coaxially sleeved at the end of the support cylinder 16 away from the azimuth turntable 103. The outer wall of the bottom cover 27 abuts against the inner walls of the fourth bearing 26 on both sides. The bearing mounting seat 25, the fourth bearing 26 and the bottom cover 27 are all located inside the azimuth base 101. A fixing plate 28 is installed on the side of the azimuth base 101 away from the connecting plate 3. The fixing plate 28 is threadedly fixed to the bearing mounting seat 25. The fixing plate 28 helps to prevent the bottom cover 27 from coming off the azimuth base 101.
[0037] Reference Figure 2 and Figure 6A connecting column 29 is installed inside the support cylinder 16. The connecting column 29 is threadedly fixed to the azimuth turntable 103. A magnet 30 is embedded at the end of the connecting column 29 away from the azimuth turntable 103. A through hole 31 is opened on the fixing plate 28. The inner diameter of the through hole 31 is larger than the outer diameter of the connecting column 29. An encoder 32 is threadedly fixed on the side of the fixing plate 28 away from the connecting plate 3. When the azimuth turntable 103 drives the connecting column 29 to rotate, the magnet 30 rotates synchronously, so that the encoder 32 generates a signal response to reflect the rotation angle of the connecting plate 3.
[0038] Reference Figure 3 , Figure 4 , Figure 6 and Figure 7 The pitch drive assembly 202 also includes a worm gear 33, a worm 34, and a drive motor 35. The connection method of the worm gear 33, worm 34, and drive motor 35 in the pitch drive assembly 202 is the same as that in the azimuth drive assembly 102. The pitch base 201 is equipped with a first bearing 15, a support cylinder 16, a support frame 17, a coupling 18, an adjusting seat 19, a first flange 20, a second bearing 21, a second flange 22, a lubricant opening baffle 24, a bearing mounting seat 25, and a fourth bearing 26. The bottom cover 27, fixing plate 28, connecting column 29, magnet 30, through hole 31, encoder 32, first bearing 15, support cylinder 16, support frame 17, coupling 18, adjusting seat 19, first flange 20, second bearing 21, second flange 22, lubricant opening baffle 24, bearing mounting seat 25, fourth bearing 26, bottom cover 27, fixing plate 28, connecting column 29, magnet 30, through hole 31, and encoder 32 are connected in the same way as the orientation base 101.
[0039] Reference Figure 2 , Figure 3 The pitch turntable 203 is threadedly fixed to the side of the azimuth turntable 103 with a mounting plate 6. The mounting plate 6 is used to install optical components (not shown in the figure). The side of the connecting plate 3 away from the azimuth turntable 103 can support the optical components. The outer periphery of the mounting plate 6 is integrally formed with a pitch limiting block 9. The pitch base 201 is bolted to the side away from the connecting plate 3 with a pitch limiting plate 7. A limiting groove 8 is opened on the pitch limiting plate 7. The pitch limiting block 9 is inserted into the limiting groove 8 and abuts against the inner wall of the limiting groove 8 to limit the rotation angle of the mounting plate 6, so that the rotation range of the pitch limiting block 9 is ±6°.
[0040] Reference Figure 5The connecting plate 3 has a first shoulder 10 integrally formed at one end near the pitch base 201. The length direction of the first shoulder 10 is parallel to the width direction of the connecting plate 3. The first shoulder 10 divides the connecting plate 3 into two areas. The side of the pitch base 201 near the azimuth turntable 103 abuts against one side of the first shoulder 10. The side of the pitch base 201 near the drive motor 35 of the pitch drive assembly 202 has a second shoulder 11 integrally formed. The side of the second shoulder 11 away from the drive motor 35 abuts against both sides of the side wall of the connecting plate 3. The first shoulder 10 and the second shoulder 11 facilitate the positioning of the pitch base 201 and are beneficial for the installation of the pitch base 201.
[0041] Reference Figure 5 and Figure 6 The end of the connecting plate 3 near the pitch base 201 is integrally formed with a reinforcing rib 12. There are two reinforcing ribs 12, which are located on both sides of the connecting plate 3. The reinforcing ribs 12 help to enhance the structural strength of the connecting plate 3. The reinforcing rib 12 on the side away from the pitch base 201 is provided with a weight reduction groove 13, which helps to reduce the weight of the connecting plate 3 and contributes to the lightweight design of the overall structure.
[0042] The implementation principle of a modular turntable for laser communication disclosed in this application is as follows: When it is necessary to fine-tune the azimuth angle of the optical component, the azimuth drive component 102 drives the azimuth turntable 103 to rotate, and the azimuth turntable 103 drives the pitch base 201 to rotate as a whole through the connecting plate 3 until the azimuth limiting plate 4 and the azimuth limiting block 5 abut against each other on both sides; when it is necessary to fine-tune the pitch angle of the optical component, the pitch drive component 202 drives the pitch turntable 203 to rotate, and the pitch turntable 203 drives the optical component on the mounting plate 6 to rotate until the pitch limiting block 9 abuts against the inner wall of the limiting groove 8; by setting separate azimuth module 1 and pitch module 2, different processing methods for the two independent modules are realized, thereby reducing the manufacturing difficulty; the structure of azimuth module 1 is universal, and azimuth module 1 and pitch module 2 can be replaced according to requirements, thereby saving the time and cost of redesign.
[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A modular turntable for laser communication, characterized in that: include: A directional module (1) includes a directional base (101), a directional drive assembly (102) mounted on the directional base (101), and a directional turntable (103) rotatably mounted on the directional base (101). The directional drive assembly (102) drives the directional turntable (103) to rotate. The pitch module (2) includes a pitch base (201), a pitch drive assembly (202) mounted on the pitch base (201), and a pitch turntable (203) rotatably mounted on the pitch base (201). The pitch drive assembly (202) drives the pitch turntable (203) to rotate. A connecting plate (3) is fixed at one end to an azimuth turntable (103), and a pitch base (201) is fixed at the other end of the connecting plate (3). The pitch base (201) is located on the side of the connecting plate (3) away from the azimuth turntable (103).
2. The modular turntable for laser communication according to claim 1, characterized in that, The azimuth drive assembly (102) includes a worm gear (33), a worm (34) meshing with the worm gear (33), and a drive motor (35). The worm gear (33) is coaxially fixed with the azimuth turntable (103). The drive motor (35) is installed on the outside of the azimuth base (101). The drive motor (35) drives the worm (34) to rotate. The azimuth drive assembly (102) has the same structure as the pitch drive assembly (202).
3. The modular turntable for laser communication according to claim 2, characterized in that, The worm (34) is located inside the azimuth base (101), and the worm (34) is located on the side of the azimuth worm wheel (33) near the pitch base (201).
4. The modular turntable for laser communication according to claim 2, characterized in that, An orientation limiting plate (4) is provided on the side of the orientation base (101) away from the drive motor (35), and an orientation limiting block (5) is provided on the side wall of the connecting plate (3). The orientation limiting plate (4) and the orientation limiting block (5) abut against each other on both sides to limit the rotation angle of the connecting plate (3).
5. The modular turntable for laser communication according to claim 4, characterized in that, The azimuth base (101) is symmetrically provided with mounting structures for mounting drive motor (35) and azimuth limiting plate (4) on both sides, and the connecting plate (3) is symmetrically provided with azimuth limiting blocks (5) on both sides.
6. The modular turntable for laser communication according to claim 1, characterized in that, The pitch turntable (203) is provided with a mounting plate (6) at one end near the azimuth turntable (103). The mounting plate (6) is used to install optical components. The pitch base (201) is provided with a pitch limiting plate (7) on the side away from the connecting plate (3). A limiting groove (8) is provided on the pitch limiting plate (7). A pitch limiting block (9) is provided on the outer peripheral wall of the mounting plate (6). The pitch limiting block (9) abuts against the inner wall of the limiting groove (8) to limit the rotation angle of the mounting plate (6).
7. The modular turntable for laser communication according to claim 2, characterized in that, A first shoulder (10) is provided on one end of the connecting plate (3) near the pitch base (201). The side of the pitch base (201) near the azimuth turntable (103) abuts against the side wall of the first shoulder (10). A second shoulder (11) is provided on the side of the pitch base (201) near the drive motor (35) of the pitch drive assembly (202). The side of the second shoulder (11) away from the drive motor (35) abuts against the side wall of the connecting plate (3).
8. The modular turntable for laser communication according to claim 1, characterized in that, The connecting plate (3) is provided with reinforcing ribs (12) on both sides, and the two reinforcing ribs (12) are located at the end of the connecting plate (3) near the pitch base (201).
9. The modular turntable for laser communication according to claim 8, characterized in that, A weight-reducing groove (13) is provided on the reinforcing rib (12) on the side away from the pitch base (201).