Multifunctional driving device for spacecraft

Abstract

The invention discloses a multifunctional driving device for a spacecraft, which belongs to the technical field of photon driving and comprises laser transmitters arranged in an array mode, a supporting seat is arranged at the bottom of each group of laser transmitters, a movable seat is movably arranged at the top of each supporting seat, and a fixed supporting box is fixed at the top of each movable seat. The laser transmitter is stably mounted in the mounting frame through the clamping and fixing assembly, meanwhile, the driving gear is driven by the driving motor to rotate, then the speed of the driving gear is reduced through the gear set, the driven gear is driven to rotate, the driven gear drives the driving shaft to drive the fixing rod to rotate through the connecting plate, and under cooperation of the deflection frame, the laser transmitter is stably mounted in the mounting frame. The installation frame is deflected around the deflection shaft, the angle of the laser transmitter is continuously adjusted, large-angle deflection of the laser transmitter is avoided, it is guaranteed that light beams emitted by the laser transmitter array can be concentrated in a high-precision mode, a spacecraft is tracked, and the spacecraft is efficiently driven.

Description

Technical Field

[0001] This invention relates to the field of photonic drive technology, specifically to a multifunctional drive device for spacecraft. Background Technology

[0002] It is a photonic propulsion system that uses a massive ground-based laser emitter as a power source to propel the spacecraft. In other words, the spacecraft itself does not need to carry a large amount of fuel. The most cumbersome and expensive propulsion system of a conventional rocket can be placed on the ground, and the spacecraft itself only needs to carry other necessary equipment besides the propulsion system to easily embark on its journey. This research project aims to accelerate the spacecraft to a speed as close as possible to the speed of light through electromagnetic acceleration, ultimately making interstellar travel possible.

[0003] To implement a photon-driven system, a massive array of laser emitters is required. By focusing the laser beam onto the spacecraft, the photon beam impacts the light sail, generating thrust that propels the spacecraft at high speed. As the spacecraft moves further away, the laser emitter array needs to focus the laser beam, requiring angle adjustments to individual laser emitters. Traditional adjustment methods suffer from poor consistency, resulting in insufficient precision in deflection angles and an inability to focus the laser beam over a large area, leading to insufficient thrust on the spacecraft. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-functional drive device for spacecraft. This device uses a gear set to reduce the speed of the drive gear driven by the drive motor, thereby driving the driven gear. The driven gear, driven by the drive motor, slowly rotates the drive shaft, causing the mounting frame to oscillate around the yaw axis. The oscillation is continuous and the precision is controllable. Simultaneously, a clamping and fixing assembly is used to clamp and fix the laser emitter, preventing it from shaking. This solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-functional drive device for spacecraft, comprising an array of laser emitters, each group of laser emitters having a support base at its bottom, a movable base movably disposed on the top of the support base, a fixed support box fixed to the top of the movable base, a yaw shaft rotatably connected to the upper end of the front of the fixed support box via a bearing, a mounting frame fixed to the end of the yaw shaft away from the fixed support box, the laser emitter being located within the inner cavity of the mounting frame, and the inner cavity of the mounting frame being provided with a limiting clamp for the laser emitter. The clamping and fixing assembly includes a swing frame fixed to the outer side of the swing shaft, a drive shaft rotatably connected to the lower end of the front of the fixed support box via a bearing, a connecting plate fixed to the front end of the drive shaft, a fixing rod extending into the inner cavity of the swing frame fixed to the front of the connecting plate, the other end of the drive shaft penetrating into the inner cavity of the fixed support box and fixed with a driven gear, a drive motor fixed to the inner cavity of the fixed support box, a drive gear fixed to the output shaft of the drive motor, and a gear set provided in the inner cavity of the fixed support box for connecting the drive gear and the driven gear and reducing speed.

[0006] Preferably, the gear set includes a movable shaft that rotates within the cavity of a fixed support box via a bearing. A first transition gear and a second transition gear are fixed to the outer side of the movable shaft, respectively. The driving gear meshes with the first transition gear, and the second transition gear meshes with the driven gear.

[0007] Preferably, the clamping and fixing assembly includes chambers on both sides inside the mounting frame. A threaded rod is rotatably connected to the inner cavity of each chamber via bearings. A movable block is threadedly connected to the outer side of the threaded rod via a threaded sleeve. A groove is formed on the opposite side of the movable block, and a connecting rod is slidably connected to the inner cavity of the groove. One end of the connecting rod extends through the inner cavity of the mounting frame and is fixed to a clamping seat that fits against the outer side of the laser emitter. A limiting rod is fixed to the outer side of the connecting rod. A limiting groove is formed in the inner cavity of the chamber. The end of the limiting rod away from the connecting rod extends through the inner cavity of the limiting groove and is slidably connected to the limiting groove. A cavity is formed at the lower end inside the mounting frame, and a driving assembly for driving the threaded rod is provided within the inner cavity of the cavity.

[0008] Preferably, the drive assembly includes a servo motor fixed to the cavity, the output shaft of the servo motor is fixed with a double-groove pulley, one end of the threaded rod passes through the cavity and is fixed with a single-groove pulley, and the single-groove pulley and the outer side of the double-groove pulley are connected by a transmission belt.

[0009] Preferably, a sector gear is fixed to the bottom of the mounting frame, and a support gear is mounted on the top of the movable seat via a fixed seat, the support gear meshing with the opposite side of the sector gear.

[0010] Preferably, a positioning hole is provided at the end of the connecting rod away from the clamping seat, and a positioning rod is slidably connected to the inner cavity of the positioning hole, and the positioning rod is fixed to the inner cavity of the groove.

[0011] Preferably, the top of the support base is provided with a circular storage groove, the movable seat is located in the inner cavity of the storage groove, the bottom of the storage groove is embedded with a ball bearing, and the top of the ball bearing is in contact with the bottom of the movable seat.

[0012] Preferably, the limiting groove is inclined, and the distance between the two limiting grooves decreases from bottom to top.

[0013] Preferably, the front of the fixed support box is provided with an arc-shaped sliding groove, and a sliding rod is slidably connected to the inner cavity of the sliding groove. The outer side of the sliding rod passes through the sliding groove and is fixed to the surface of the deflection frame.

[0014] Preferably, the central axis of the laser emitter coincides with the central axis of the receiving groove, and the rotation axis of the sector gear coincides with the rotation axis of the yaw shaft.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention uses a clamping and fixing assembly to stably install the laser emitter within a mounting frame. Simultaneously, a drive motor drives a drive gear to rotate, and then a gear set reduces the speed of the drive gear, driving the driven gear to rotate. The driven gear drives the drive shaft, which in turn drives the fixing rod to rotate via a connecting plate. With the cooperation of the sway frame, the mounting frame deflects around the sway axis, continuously adjusting the angle of the laser emitter. This avoids large-angle deflection of the laser emitter, ensuring that the beam emitted by the laser emitter array can be focused and tracked with high precision, achieving high-efficiency driving of the spacecraft.

[0017] 2. This invention uses the cooperation of sector gears, support gears, and slide bars to stabilize the mounting frame, ensuring the stability of the mounting frame and the laser emitter, and preventing the emitted laser beam from being unable to concentrate, thus preventing the spacecraft from receiving the impact of the beam for navigation. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the fixed support box of the present invention;

[0020] Figure 3 This is a side view cross-sectional three-dimensional structural schematic diagram of the fixed support box of the present invention;

[0021] Figure 4 This is a cross-sectional perspective view of the mounting frame of the present invention.

[0022] Figure 5 This is an exploded three-dimensional structural diagram of the movable block and connecting rod of the present invention;

[0023] Figure 6 This is a three-dimensional structural diagram of the driving component of the present invention.

[0024] The diagram shows the following components: 1. Laser emitter; 2. Support base; 3. Movable base; 4. Fixed support box; 5. Yaw shaft; 6. Mounting frame; 7. Clamping and fixing assembly; 71. Threaded rod; 72. Movable block; 73. Connecting rod; 74. Clamping base; 75. Limiting rod; 76. Limiting groove; 77. Drive assembly; 7701. Servo motor; 7702. Double-groove pulley; 7703. Single-groove pulley; 8. Yaw frame; 9. Drive shaft; 10. Connecting plate; 11. Fixed rod; 12. Driven gear; 13. Drive motor; 14. Drive gear; 15. Gear set; 151. Movable shaft; 152. First transition gear; 153. Second transition gear; 16. Sector gear; 17. Support gear; 18. Positioning rod; 19. Storage groove; 20. Ball bearing; 21. Slide groove; 22. Slide rod. Detailed Implementation

[0025] 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.

[0026] This invention provides, for example Figures 1-6 The illustrated multi-functional drive device for spacecraft includes an array of laser emitters 1. Each group of laser emitters 1 has a support base 2 at its bottom, and a movable base 3 is movably mounted on the top of the support base 2. A fixed support box 4 is fixed to the top of the movable base 3. A yaw shaft 5 is rotatably connected to the upper front of the fixed support box 4 via a bearing. A mounting frame 6 is fixed to the end of the yaw shaft 5 away from the fixed support box 4. The laser emitters 1 are located within the inner cavity of the mounting frame 6. A clamping and fixing assembly 7 for limiting and holding the laser emitters 1 is provided within the inner cavity of the mounting frame 6. The outer side of the yaw shaft 5... A sway frame 8 is fixed to the side. A drive shaft 9 is rotatably connected to the lower end of the front of the fixed support box 4 via a bearing. A connecting plate 10 is fixed to the front end of the drive shaft 9. A fixing rod 11 extending into the inner cavity of the sway frame 8 is fixed to the front of the connecting plate 10. The other end of the drive shaft 9 passes through the inner cavity of the fixed support box 4 and is fixed with a driven gear 12. A drive motor 13 is fixed in the inner cavity of the fixed support box 4. A drive gear 14 is fixed to the output shaft of the drive motor 13. A gear set 15 is provided in the inner cavity of the fixed support box 4 for connecting the drive gear 14 and the driven gear 12 and reducing speed.

[0027] The laser emitter 1 is stably installed in the mounting frame 6 by clamping and fixing assembly 7. At the same time, the drive motor 13 drives the drive gear 14 to rotate. Then, the drive gear 14 is decelerated by gear set 15 and driven by the driven gear 12 to rotate. The driven gear 12 drives the drive shaft 9 to rotate through the connecting plate 10 and the fixing rod 11 to rotate. With the cooperation of the deflection frame 8, the mounting frame 6 deflects around the deflection axis 5, and the angle of the laser emitter 1 is continuously adjusted to avoid large-angle deflection of the laser emitter 1. This ensures that the beam emitted by the laser emitter 1 array can be focused and tracked by the spacecraft with high precision, and achieves high-efficiency driving of the spacecraft.

[0028] The gear set 15 includes a movable shaft 151 that rotates within the cavity of the fixed support box 4 via bearings. A first transition gear 152 and a second transition gear 153 are fixed to the outer side of the movable shaft 151. The drive gear 14 meshes with the first transition gear 152, and the second transition gear 153 meshes with the driven gear 12. The first transition gear 152 and the second transition gear 153 are installed through the movable shaft 151 to ensure that the first transition gear 152 and the second transition gear 153 rotate coaxially. In addition, the different radii of the first transition gear 152 and the second transition gear 153 reduce the speed of the driven gear 12, thus avoiding the high-speed rotating drive motor 13 from directly driving the drive shaft 9 to rotate, which would cause the mounting frame 6 to swing rapidly and make it impossible to accurately control the angle of the laser emitter 1. The gear set 15 can be added as needed to further reduce the swing speed of the mounting frame 6.

[0029] The clamping and fixing assembly 7 includes cavities formed on both sides inside the mounting frame 6. A threaded rod 71 is rotatably connected to the inner cavity of each cavity via bearings. A movable block 72 is threadedly connected to the outer side of the threaded rod 71 via a threaded sleeve. A groove is formed on the opposite side of the movable block 72, and a connecting rod 73 is slidably connected to the inner cavity of the groove. One end of the connecting rod 73 extends through the inner cavity of the mounting frame 6 and is fixed to a clamping seat 74 that fits against the outer side of the laser emitter 1. A limiting rod 75 is fixed to the outer side of the connecting rod 73. A limiting groove 76 is formed in the inner cavity of the cavity, and the end of the limiting rod 75 away from the connecting rod 73 extends through the limiting groove 76. The inner cavity is slidably connected to the limiting groove 76. The lower end of the mounting frame 6 has a cavity, and the inner cavity of the cavity is provided with a drive assembly 77 for driving the threaded rod 71. The drive assembly 77 rotates the two sets of threaded rods 71. The rotating threaded rods 71, in conjunction with the threaded sleeve, drive the movable block 72 to move upward. Then, the connecting rod 73 inside the movable block 72 gradually closes during the upward process due to the limitation of the limiting rod 75 and the limiting groove 76. The connecting rod 73 moves the clamping seat 74 towards each other, and then fixes the laser emitter 1 in the mounting frame 6 to ensure the stability of the laser emitter 1.

[0030] The drive assembly 77 includes a servo motor 7701 fixed to the cavity. The output shaft of the servo motor 7701 is fixed with a double-groove pulley 7702. One end of the threaded rod 71 extends into the cavity and is fixed with a single-groove pulley 7703. The single-groove pulley 7703 and the outer side of the double-groove pulley 7702 are connected by a transmission belt. The servo motor 7701 drives the double-groove pulley 7702 to rotate. Then, the double-groove pulley 7702 drives the two sets of single-groove pulleys 7703 to rotate through the transmission belt, so that the threaded rods 71 ​​on both sides rotate synchronously. Then, the movable block 72 moves upward synchronously, so that the clamping seat 74 moves towards the middle at the same speed to clamp and fix the laser emitter 1, preventing the laser emitter 1 from shifting to one side under the clamping of the clamping seat 74.

[0031] A sector gear 16 is fixed to the bottom of the mounting frame 6, and a support gear 17 is mounted on the top of the movable seat 3 via a fixed seat. The support gear 17 meshes with the sector gear 16 on the opposite side. The cooperation between the sector gear 16 and the support gear 17 facilitates the support of the fixed support box 4, ensuring the stability of the fixed support box 4 when it swings around the yaw axis 5, so as to prevent the yaw axis 5 from bending due to excessive gravity, which would cause the laser emitter 1 to deviate.

[0032] A positioning hole is provided at the end of the connecting rod 73 away from the clamping seat 74. A positioning rod 18 is slidably connected to the inner cavity of the positioning hole. The positioning rod 18 is fixed in the inner cavity of the groove. The positioning rod 18 is provided to limit the connecting rod 73 and ensure that the connecting rod 73 remains stable during the extension and retraction movement to prevent the clamping seat 74 from shaking.

[0033] The top of the support base 2 is provided with a circular storage groove 19, and the movable seat 3 is located in the inner cavity of the storage groove 19. A ball bearing 20 is embedded in the bottom of the storage groove 19, and the top of the ball bearing 20 fits against the bottom of the movable seat 3. The storage groove 19 facilitates the limiting of the movable seat 3. At the same time, the ball bearing 20 ensures that the movable seat 3 can rotate smoothly on the top of the support base 2 and adjust its direction. This facilitates the formation of a small array in the laser emitter 1 array to propel small spacecraft for navigation, avoiding energy waste.

[0034] The limiting groove 76 is set at an angle, and the distance between the two limiting grooves 76 decreases from bottom to top. By setting the shape of the limiting groove 76, the limiting rod 75 slides in the inner cavity of the limiting groove 76 while adjusting the horizontal position of the connecting rod 73, so as to achieve the purpose of stable clamping.

[0035] The front of the fixed support box 4 is provided with an arc-shaped sliding groove 21. The inner cavity of the sliding groove 21 is slidably connected to a sliding rod 22. The outer side of the sliding rod 22 passes through the sliding groove 21 and is fixed to the surface of the swing frame 8. By sliding the sliding rod 22 in the inner cavity of the sliding groove 21, the fixed support box 4 can be supported, ensuring that the distance between the fixed support box 4 and the mounting frame 6 remains unchanged. At the same time, it can assist the mounting frame 6 to swing around the swing axis 5.

[0036] The central axis of the laser emitter 1 coincides with the central axis of the storage slot 19, and the rotation axis of the sector gear 16 coincides with the rotation axis of the yaw shaft 5. By limiting the position of the laser emitter 1, it is ensured that when the movable seat 3 rotates on the support seat 2, the laser emitter 1 will not be offset due to the rotation of the movable seat 3. At the same time, the sector gear 16 and the yaw shaft 5 are coaxial, which facilitates stable support of the mounting frame 6 with the cooperation of the support gear 17.

[0037] In practical use, the laser emitter 1 is placed inside the mounting frame 6, and the servo motor 7701 is started simultaneously. The servo motor 7701 drives the double-groove pulley 7702 to rotate, and then the double-groove pulley 7702 drives the single-groove pulley 7703 to rotate via the conveyor belt, causing the threaded rods 71 ​​on both sides to rotate synchronously. The movable block 72 moves upward with the cooperation of the threaded sleeve. Then, the connecting rod 73 inside the movable block 72 carries the clamping seat 74 to move upward synchronously. During the movement, the connecting rod 73 moves gradually towards the center under the restriction of the limiting rod 75 and the limiting groove 76, so that the clamping seat 74 moves closer to the laser emitter 1 under the drive of the connecting rod 73. Finally, the clamping seat 74 clamps and fixes the laser emitter 1. Then, the drive motor 13 is started as needed, and the output shaft of the drive motor 13 drives the drive gear 14 to rotate. The drive gear 14 drives the first transition gear 152 to rotate, synchronously driving the movable shaft 151. Then, the second transition gear 153, fixed on the outside of the movable shaft 151, rotates coaxially with the first transition gear 152. Due to the radius difference between the first transition gear 152 and the second transition gear 153, the speed is reduced, driving the driven gear 12. The driven gear 12 causes the drive shaft 9 to rotate. Then, the drive shaft 9 drives the connecting plate 10 and the fixed rod 11 to rotate. Then, the oscillating frame 8 performs a reciprocating oscillating motion under the drive of the fixed rod 11. Due to the speed reduction, the oscillation direction of the oscillating shaft 5 can be precisely controlled, so that the mounting frame 6 and the laser emitter 1 oscillate synchronously with the oscillating shaft 5, thereby deflecting the laser beam. In conjunction with the movement of the spacecraft, the laser beams in the array are concentrated together to propel the spacecraft.

[0038] 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 multi-functional drive device for spacecraft, comprising an array of laser emitters (1), characterized in that: Each laser emitter (1) has a support base (2) at its bottom, and a movable base (3) is movably mounted on the top of the support base (2). A fixed support box (4) is fixed on the top of the movable base (3). A yaw shaft (5) is rotatably connected to the upper front of the fixed support box (4) via a bearing. A mounting frame (6) is fixed to the end of the yaw shaft (5) away from the fixed support box (4). The laser emitter (1) is located in the inner cavity of the mounting frame (6). A clamping and fixing assembly (7) for limiting and clamping the laser emitter (1) is provided in the inner cavity of the mounting frame (6). A yaw frame (8) is fixed to the outer side of the yaw shaft (5). The lower end of the front of the box (4) is rotatably connected to the drive shaft (9) via a bearing. The front end of the drive shaft (9) is fixed with a connecting plate (10). The front of the connecting plate (10) is fixed with a fixing rod (11) extending into the inner cavity of the swing frame (8). The other end of the drive shaft (9) passes through the inner cavity of the fixed support box (4) and is fixed with a driven gear (12). The inner cavity of the fixed support box (4) is fixed with a drive motor (13). The output shaft of the drive motor (13) is fixed with a drive gear (14). The inner cavity of the fixed support box (4) is provided with a gear set (15) for connecting the drive gear (14) and the driven gear (12) and reducing speed.

2. The multi-functional drive device for spacecraft according to claim 1, characterized in that: The gear set (15) includes a movable shaft (151) that rotates within the cavity of a fixed support box (4) via a bearing. A first transition gear (152) and a second transition gear (153) are fixed to the outer side of the movable shaft (151). The driving gear (14) meshes with the first transition gear (152), and the second transition gear (153) meshes with the driven gear (12).

3. The multi-functional drive device for spacecraft according to claim 1, characterized in that: The clamping and fixing assembly (7) includes cavities on both sides inside the mounting frame (6). A threaded rod (71) is rotatably connected to the inner cavity of each cavity via a bearing. A movable block (72) is threadedly connected to the outer side of the threaded rod (71) via a threaded sleeve. A groove is provided on the opposite side of the movable block (72), and a connecting rod (73) is slidably connected to the inner cavity of the groove. One end of the connecting rod (73) extends through the inner cavity of the mounting frame (6) and is fixed to fit against the vibrating surface. The light emitter (1) has a clamping seat (74) on the outside, and a limiting rod (75) is fixed on the outside of the connecting rod (73). A limiting groove (76) is opened in the inner cavity of the chamber. The end of the limiting rod (75) away from the connecting rod (73) passes through the inner cavity of the limiting groove (76) and is slidably connected to the limiting groove (76). The lower end of the mounting frame (6) is provided with a cavity, and the inner cavity of the cavity is provided with a driving assembly (77) for driving the threaded rod (71).

4. A multi-functional drive device for spacecraft according to claim 3, characterized in that: The drive assembly (77) includes a servo motor (7701) fixed to the cavity cavity. The output shaft of the servo motor (7701) is fixed with a double-groove pulley (7702). One end of the threaded rod (71) extends into the cavity cavity and is fixed with a single-groove pulley (7703). The single-groove pulley (7703) and the outer side of the double-groove pulley (7702) are connected by a transmission belt.

5. A multi-functional drive device for spacecraft according to claim 1, characterized in that: A sector gear (16) is fixed to the bottom of the mounting frame (6), and a support gear (17) is mounted on the top of the movable seat (3) through a fixed seat. The support gear (17) meshes with the sector gear (16) on the opposite side.

6. A multi-functional drive device for spacecraft according to claim 3, characterized in that: The connecting rod (73) has a positioning hole at one end away from the clamping seat (74), and a positioning rod (18) is slidably connected to the inner cavity of the positioning hole. The positioning rod (18) is fixed to the inner cavity of the groove.

7. A multi-functional drive device for spacecraft according to claim 1, characterized in that: The top of the support base (2) is provided with a circular storage groove (19), the movable base (3) is located in the inner cavity of the storage groove (19), and a ball bearing (20) is embedded in the bottom of the storage groove (19). The top of the ball bearing (20) is in contact with the bottom of the movable base (3).

8. A multi-functional drive device for spacecraft according to claim 3, characterized in that: The limiting groove (76) is inclined, and the distance between the two limiting grooves (76) decreases from bottom to top.

9. A multi-functional drive device for spacecraft according to claim 1, characterized in that: The fixed support box (4) has an arc-shaped groove (21) on its front side. A slide rod (22) is slidably connected to the inner cavity of the groove (21). The outer side of the slide rod (22) passes through the groove (21) and is fixed to the surface of the swing frame (8).

10. A multi-functional drive device for spacecraft according to claim 5, characterized in that: The central axis of the laser emitter (1) coincides with the central axis of the receiving groove (19), and the rotation axis of the sector gear (16) coincides with the rotation axis of the yaw shaft (5).

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