A reel type flexible solar cell sail membrane rolling and unrolling device and rolling and unrolling method

Abstract

The reel type flexible solar cell sail membrane winding and unwinding device and method comprises a locking device and parallel arranged winding and unwinding roller module and end fixed module; the winding and unwinding roller module is internally provided with a main roller connected with a motor; the side winding start end of the main roller is fixed to an elastic thin wall C type telescopic rod at the end fixed module, which is a support guide of the main roller, is compressed in the winding state and is flat in the unwinding state; the main roller is further wound with a solar cell sail membrane with a start end fixed to the end fixed module; when the storage state, the winding and unwinding roller module is connected with the end fixed module through the locking device; when unwinding, the motor drives the main roller to roll along the support guide, unwinds the sail membrane away from the end module, restores to the C type tubular with the opening upward at the part of the thin wall C type telescopic rod out of the winding state, and pushes the main roller with the elastic force thereof; the device can stably and efficiently execute the repeated unwinding and winding of the solar cell sail membrane in the harsh environment.

Description

Technical Field

[0001] This invention relates to the field of aerospace unfolding mechanism technology, and in particular to a roll-up flexible solar cell sail film unfolding device and unfolding method. Background Technology

[0002] Microsatellite technology is considered a commanding height for national technological and economic development in the 21st century. With the rapid development of deep space exploration technology, the application of solar sail spacecraft in space missions is increasing. However, solar sails are largely limited by issues such as deployment area, deployment form, power output, and launch mass. Onboard resources are extremely limited, and traditional rigid / semi-rigid solar arrays cannot meet the requirements of high-quality power-to-weight ratio and volumetric power-to-weight ratio for multiple satellites launched simultaneously. Flexible solar arrays utilize the strain energy stored in thin-walled telescopic rods to achieve on-orbit deployment. They have a small folded volume and do not require hinges or other deployment mechanisms, making them an important development direction for future spacecraft.

[0003] Therefore, this invention addresses the need for unmanned operation and efficient storage of flexible solar cell sails by designing and developing a roll-type flexible solar cell sail roll-up device that utilizes the large deformation and roll-up characteristics of composite materials or thin-walled metals. This device meets the requirements of high-quality specific power and volumetric specific power for multiple satellites launched by a single rocket. It has advantages such as lightweight and high strength, stable and controllable roll-up process, and high storage ratio, and can realize stable and efficient repeated unfolding and roll-up of solar cell sails in aerospace environments. Summary of the Invention

[0004] This invention proposes a roll-type flexible solar cell sail unrolling device and method, which can stably and efficiently perform repeated unrolling and rolling of solar cell sails in harsh environments.

[0005] The present invention adopts the following technical solution.

[0006] A roll-up flexible solar cell sail film unwinding device includes a locking device and a parallel-arranged unwinding roller module (1) and an end fixing module (4). The unwinding roller module has a main roller (1-11) connected to a motor (1-2) inside. The side of the main roller is wound with an elastic thin-walled C-shaped telescopic rod (2) whose starting end is fixed at the end fixing module. The thin-walled C-shaped telescopic rod is a support guide for the main roller. When it is in the winding state, it is compressed and unfolded into a plane. The main roller is also wound with a solar cell sail film (3) whose starting end is fixed at the end fixing module. When the solar cell sail film is in the rolled-up storage state, the unwinding roller module and the end fixing module are connected through the locking module. When the solar cell sail film is unwound, the motor drives the main roller to roll along the support guide and unfolds the solar cell sail film in the process of leaving the end module. The thin-walled C-shaped telescopic rod part that is detached from the winding state curls radially with its elasticity to restore it to a C-shaped tube with the opening facing upward. In the process of curling, it pushes the main roller with its elasticity.

[0007] Two thin-walled C-shaped telescopic rods are fastened to both ends of the main roller with flat-head fasteners; the solar cell canvas is connected and fixed to the main roller with flat-head fasteners.

[0008] The rolling roller module (1) includes a power supply (1-1), a motor (1-2), a power supply and motor base (1-3), a rolling bearing (1-4), a transmission shaft (1-5), a pinion (1-6), a large gear (1-7), a main transmission shaft (1-8), a main transmission shaft end connecting block (1-9), a main roller end cover (1-10), and a main roller (1-11). The power supply (1-1) and the motor (1-2) are fixed to the power supply and motor base (1-3) by limiting plates. The motor (1-2) is connected to the transmission shaft (1-5) and the pinion (1-6) by flat-head pins. Gear (1-6) meshes with large gear (1-7) for transmission, and large gear is fastened to main drive shaft (1-8) with a locking screw; the inner ring of rolling bearing (1-4) is fitted with main drive shaft (1-8), and the outer ring is fitted with power motor base (1-3); the end connecting block (1-9) of main drive shaft is fastened to main drive shaft (1-8) with a pin; the end connecting block (1-9) of main drive shaft is fixedly connected to main roller end cover (1-10) with a set screw; the end cover (1-10) of main roller is fastened to main roller (1-11) with a set screw.

[0009] The end fixing module (4) includes a hollow main frame (4-1), two thin-walled C-shaped telescopic rod stationary end sleeves (4-2), a solar cell film stationary end clamping plate (4-3), a frame shell (4-4), a solar cell film stationary end triangular fixing piece (4-5), and two thin-walled C-shaped telescopic rod stationary end sleeve bases (4-6); the hollow main frame (4-1) is fastened to the two thin-walled C-shaped telescopic rod stationary end sleeve bases (4-6) and the solar cell film stationary end triangular fixing piece (4-5) with set screws;

[0010] The two thin-walled C-type telescopic rod stationary end sleeves (4-2) are fixedly connected to the two thin-walled C-type telescopic rod stationary end sleeve bases (4-6) by welding; the solar cell sail stationary end clamping plate (4-3) is fixedly connected to the solar cell sail stationary end triangular fixing piece (4-5) by flat-head fasteners; the solar cell sail stationary end clamping plate (4-3) is fastened to the solar cell sail (3) by flat-head fasteners; the two thin-walled C-type telescopic rod stationary end sleeves (4-2) are fixedly connected to the two thin-walled C-type telescopic rods (2) by adhesive bonding.

[0011] The locking module includes a locking slot (6-1) located at the end fixing module, and also includes a locking slot (6-2), a locking slot base (6-3), and a torsion controller (6-4) located at the roll-up roller module. The locking slot (6-1) is fixedly connected to the hollow main frame (4-1) of the end fixing module by welding. The locking slot base (6-3) is fixedly connected to the main roller end cap (1-10) of the roll-up roller module by welding. The locking slot (6-2) is fixed to the surface of the main roller end cap (1-10) by a torsion shaft and the torsion controller (6-4).

[0012] The thin-walled C-type telescopic rod is a longitudinally open thin-walled round rod with a central angle of . α And 0.5 ≤ α <2 The initial radius is R The radius of the roll is r =1.3 R , length is L Width is b Thickness is t Its size can be customized according to actual working conditions.

[0013] The total length of the hollow main frame (4-1) and the frame shell (4-4) is L 1 The length of the bottom of the stationary end sleeve of the two thin-walled C-shaped telescopic rods L 2 < 3 R 3 / 2 The hollowed-out main frame (4-1) is hollowed out in the width direction to form a cylindrical structure, and the central angle of the cylindrical structure is . , radius is R 1 Width is b 1 The height is h Its size can be customized according to actual working conditions.

[0014] The outer surface of the main roller (1-11) has 16 countersunk holes (1-11-1) along the axial direction; the radius of the main roller (1-11) is r+t; the length of the main roller (1-11) is determined by the width of the two thin-walled C-shaped telescopic rods (2) and the solar cell sail (3);

[0015] The countersunk holes (1-11-1) on the main roller correspond one-to-one with the telescopic rod through holes (2-1) on the two thin-walled C-type telescopic rods (2) and the through holes (3-1) on the solar cell canvas (3), and are fastened together by flat-head screws.

[0016] The two thin-walled C-shaped telescopic rods (2) have four telescopic rod through holes (2-1) along the width direction at one end, which are used to fasten them to the countersunk holes (1-11-1) of the rollers by means of flat-head screws;

[0017] The solar cell sail (3) has 8 sail through holes (3-1) along the width direction at one end, which are used to fasten the sail to the countersunk hole (1-11-1) of the roller by means of flat head screws;

[0018] The power supply (1-1) and motor (1-2) of the roll-up roller module are fixed to the inside of the power supply motor base (1-3) of the roll-up roller module by limiting plates;

[0019] The hollow main frame (4-1) has 6 hollow main frame countersunk holes (4-1-1) on the end face, which are connected one by one to the base through holes (4-6-1) of the two thin-walled C-type telescopic rod stationary end sleeve bases (4-6) and the fixing plate through holes (4-5-1) of the solar cell sail film stationary end triangular fixing plate (4-5), and are fastened by flat-head fasteners;

[0020] The fixed end clamping plate (4-3) of the solar cell sail has 4 countersunk holes (4-3-1) along the width direction, which are fastened to the fixed end of the solar cell sail (3) by flat-head screws; the fixed end clamping plate (4-3) of the solar cell sail has 6 countersunk holes (4-3-2) along the length direction, which are fastened to the 6 through holes (5-1-1) evenly distributed on both sides of the laser ranging module (5) by flat-head screws.

[0021] The unrolling device also includes a laser ranging module, which monitors in real time the distance between the main roller (1-11) of the unrolling roller module and the hollow main frame (4-1) of the end fixing module through a laser ranging sensor (5-1); the laser ranging module includes a laser ranging sensor (5-1) located at the end fixing module and an input control screen (5-2) located at the unrolling roller module; the input control screen (5-2) and the end cover (1-10) of the main roller are fixedly connected by set screws.

[0022] The unfolding method of the roll-up flexible solar cell sail film unfolding device, using the roll-up flexible solar cell sail film unfolding device described above, is characterized in that: when the solar cell sail film is in a rolled-up storage state, the motor (1-2) is started to unfold the unfolding device, and the torsion controller (6-4) drives the torsion shaft to twist after receiving the motor signal, thereby controlling the locking buckle to rotate and thus releasing the locking buckle.

[0023] The motor is connected to the main drive shaft (1-8) of the main drive shaft end connecting block via a pin. Under the meshing action of the drive shaft (1-5), the small gear (1-6) and the large gear (1-7), the main roller (1-11) which is connected and fixed to the main roller end cover (1-10) begins to rotate.

[0024] When the main roller (1-11) moves away from the hollow main frame (4-1), the two thin-walled C-shaped telescopic rods (2) in the rolled-up state rotate with the main roller (1-11) and undergo elastic deformation. Then, under the action of bending torque, they gradually roll into a cylindrical shape and push the main roller (1-11) to move until they are unfolded to the preset length. At this point, the motor stops running and achieves self-locking.

[0025] The method for retracting a roll-type flexible solar cell sail film roll-up device, using the roll-type flexible solar cell sail film roll-up device described above, is characterized in that: when the solar cell sail film is in the unfolded state, the motor (1-2) is started to retract the roll-up device. The motor is connected to the main drive shaft (1-8) of the main drive shaft end connecting block through a pin shaft. Under the meshing action of the drive shaft (1-5), the small gear (1-6) and the large gear (1-7), the main roller (1-11) which is connected and fixed to the main roller end cover (1-10) begins to rotate in the opposite direction.

[0026] When the main roller (1-11) moves toward the hollow main frame (4-1), the two thin-walled C-shaped telescopic rods (2) fixed on the main roller (1-11) roll together along the same curvature direction until the main roller (1-11) and the hollow main frame (4-1) are completely in contact. At this time, the motor stops running and achieves self-locking. After receiving the motor signal, the torsion controller (6-4) drives the torsion shaft to rotate and controls the rotation of the locking jaw to achieve locking of the locking jaw.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] (1) In this invention, through modular mechanism design, the two thin-walled C-shaped telescopic rods and the solar cell sail can be synchronously and repeatedly unfolded and rolled up with the main body roller under the drive of the motor;

[0029] (2) In this invention, the design of the end fixing module enables the two thin-walled C-shaped telescopic rods and the solar cell film to be fixedly connected as required, thereby realizing the integration of the whole machine;

[0030] (3) In this invention, by setting up a thin-walled C-shaped telescopic rod and a laser ranging module, long-distance, unmanned intelligent monitoring function can be realized;

[0031] (4) This invention can meet the requirements of high-quality specific power and volumetric specific power of satellites for multiple satellites launched by one rocket, and has the advantages of being lightweight and high-strength, having a stable and controllable roll-up process, and having a high packing ratio. It can realize the stable and efficient repeated unfolding and roll-up of solar cell sails.

[0032] This invention utilizes the structural control and deformation characteristics of prestressed bistable composite materials of two thin-walled C-shaped telescopic rods to provide a certain amount of prestress and elasticity during the extension and retraction process, thus avoiding the jamming phenomenon during long-distance extension and retraction. Attached Figure Description

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0034] Appendix Figure 1 This is a schematic diagram of the unfolded structure of the overall device of the present invention;

[0035] Appendix Figure 2 This is a schematic diagram of the folding structure of the overall device of the present invention;

[0036] Appendix Figure 3 This is a schematic diagram of the structure of the solar cell sail film of the present invention;

[0037] Appendix Figure 4 This is a schematic diagram of the roll-up roller module of the present invention;

[0038] Appendix Figure 5 This is a schematic diagram of the thin-walled C-shaped telescopic rod of the present invention;

[0039] Appendix Figure 6 This is a rear view schematic diagram of the end fixing module of the present invention;

[0040] Appendix Figure 7 This is a three-axis schematic diagram of the end fixing module of the present invention;

[0041] Appendix Figure 8 This is a schematic diagram of the stationary end clamping plate structure of the solar cell film of the present invention;

[0042] In the diagram: 1-1 Power supply, 1-2 Motor, 1-3 Power supply and motor base, 1-4 Rolling bearing, 1-5 Drive shaft, 1-6 Small gear, 1-7 Large gear, 1-8 Main drive shaft, 1-9 Main drive shaft end connecting block, 1-10 Main roller end cover, 1-11 Main roller, 1-11-1 Roller countersunk hole;

[0043] 2. Thin-walled C-type telescopic rod, 2-1 telescopic rod through hole,

[0044] 3. Solar cell membrane, 3-1 membrane perforation,

[0045] 4-1 Hollowed-out main frame, 4-2 Two thin-walled C-shaped telescopic rod stationary end sleeves, 4-3 Solar cell canvas stationary end clamping plate, 4-4 Frame shell, 4-5 Solar cell canvas stationary end triangular fixing piece, 4-6, Thin-walled C-shaped telescopic rod stationary end sleeve base,

[0046] 4-1-1 Countersunk hole in the hollow main frame; 4-3-1 Countersunk hole at the stationary end of the solar cell film; 4-3-2 Countersunk hole in the clamping plate; 4-5-1 Through hole for the fixing plate; 4-6-1 Through hole for the base.

[0047] 5-1 Laser rangefinder sensor, 5-2 Input control panel, 5-1-1 Six through holes evenly distributed on both sides of the laser rangefinder module, 6-1 Locking slot, 6-2 Locking slot, 6-3 Locking slot base, 6-4 Torsion controller. Detailed Implementation

[0048] 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.

[0049] As shown in the figure, a roll-up flexible solar cell sail film unwinding device includes a locking device and a parallel-arranged unwinding roller module 1 and an end fixing module 4. The unwinding roller module has a built-in main roller 1-11 connected to a motor 1-2. The side of the main roller is wound with an elastic thin-walled C-shaped telescopic rod 2 whose starting end is fixed at the end fixing module. The thin-walled C-shaped telescopic rod is a support guide for the main roller. When it is in the winding state, it is compressed and unfolded into a plane. The main roller is also wound with a solar cell sail film 3 whose starting end is fixed at the end fixing module. When the solar cell sail film is in the rolled-up storage state, the unwinding roller module and the end fixing module are connected via the locking module. When the solar cell sail film is unwound, the motor drives the main roller to roll along the support guide, and unfolds the solar cell sail film as it leaves the end module. The thin-walled C-shaped telescopic rod part that is detached from the winding state curls radially with its elasticity back to an upward-facing C-shaped tube, and pushes the main roller with its elasticity during the curling process.

[0050] Two thin-walled C-shaped telescopic rods are fastened to both ends of the main roller with flat-head fasteners; the solar cell canvas is connected and fixed to the main roller with flat-head fasteners.

[0051] The rolling roller module 1 includes a power supply 1-1, a motor 1-2, a power supply and motor base 1-3, a rolling bearing 1-4, a transmission shaft 1-5, a pinion 1-6, a large gear 1-7, a main transmission shaft 1-8, a main transmission shaft end connecting block 1-9, a main roller end cover 1-10, and a main roller 1-11. The power supply 1-1 and motor 1-2 are fixed to the power supply and motor base 1-3 by limiting plates. The motor 1-2 is connected to the transmission shaft 1-5 and the pinion 1-6 by flat-head pins. The pinion 1-6 and... The large gear 1-7 engages in transmission, and the large gear is fastened to the main drive shaft 1-8 with a locking screw; the inner ring of the rolling bearing 1-4 mates with the main drive shaft 1-8, and the outer ring mates with the power motor base 1-3; the end connecting block 1-9 of the main drive shaft is fastened to the main drive shaft 1-8 with a pin; the end connecting block 1-9 of the main drive shaft is fixedly connected to the main roller end cover 1-10 with a set screw; the main roller end cover 1-10 is fastened to the main roller 1-11 with a set screw.

[0052] The end fixing module 4 includes a hollow main frame 4-1, two thin-walled C-shaped telescopic rod stationary end sleeves 4-2, a solar cell film stationary end clamping plate 4-3, a frame shell 4-4, a solar cell film stationary end triangular fixing piece 4-5, and two thin-walled C-shaped telescopic rod stationary end sleeve bases 4-6; the hollow main frame 4-1 is fastened to the two thin-walled C-shaped telescopic rod stationary end sleeve bases 4-6 and the solar cell film stationary end triangular fixing piece 4-5 with set screws;

[0053] The two thin-walled C-type telescopic rod stationary end sleeves 4-2 are fixedly connected to the two thin-walled C-type telescopic rod stationary end sleeve bases 4-6 by welding; the solar cell canvas stationary end clamping plate 4-3 is fixedly connected to the solar cell canvas stationary end triangular fixing piece 4-5 by flat-head fasteners; the solar cell canvas stationary end clamping plate 4-3 is fastened to the solar cell canvas 3 by flat-head fasteners; the two thin-walled C-type telescopic rod stationary end sleeves 4-2 are fixedly connected to the two thin-walled C-type telescopic rods 2 by adhesive bonding.

[0054] The locking module includes a locking slot 6-1 located at the end fixing module, and also includes a locking slot 6-2, a locking slot base 6-3, and a torsion controller 6-4 located at the roll-up roller module. The locking slot 6-1 is fixedly connected to the hollow main frame 4-1 of the end fixing module by welding. The locking slot base 6-3 is fixedly connected to the main roller end cover 1-10 of the roll-up roller module by welding. The locking slot 6-2 is fixed to the surface of the main roller end cover 1-10 via a torsion shaft and the torsion controller 6-4.

[0055] The thin-walled C-type telescopic rod is a longitudinally open thin-walled round rod with a central angle of . α And 0.5 ≤ α <2 The initial radius is R The radius of the roll is r =1.3 R , length is L Width is b Thickness is t Its size can be customized according to actual working conditions.

[0056] The total length of the hollow main frame 4-1 and the frame shell 4-4 is: L 1 The length of the bottom of the stationary end sleeve of the two thin-walled C-shaped telescopic rods L 2 < 3 R 3 / 2 The hollowed-out main frame 4-1 is hollowed out in the width direction to form a cylindrical structure, and the central angle of the cylindrical structure is . , radius is R 1 Width is b 1 The height is h Its size can be customized according to actual working conditions.

[0057] The outer surface of the main roller 1-11 has 16 countersunk holes 1-11-1 along the axial direction; the radius of the main roller 1-11 is r+t; the length of the main roller 1-11 is determined by the width of the two thin-walled C-shaped telescopic rods 2 and the solar cell sail film 3.

[0058] The countersunk holes 1-11-1 on the main roller correspond one-to-one with the telescopic rod through holes 2-1 on the two thin-walled C-type telescopic rods 2 and the through hole 3-1 on the solar cell canvas 3, and are fastened together by flat-head screws.

[0059] One end of the two thin-walled C-shaped telescopic rods 2 is provided with four telescopic rod through holes 2-1 along the width direction, which are used to fasten the rods to the countersunk holes 1-11-1 of the rollers by flat-head screws.

[0060] One end of the solar cell sheet 3 is provided with 8 sheet through holes 3-1 along the width direction, which are used to fasten the connection with the countersunk holes 1-11-1 of the roller by flat head screws;

[0061] The power supply 1-1 and motor 1-2 of the roll-up roller module are fixed to the inside of the power supply and motor base 1-3 of the roll-up roller module by limiting plates;

[0062] The hollow main frame 4-1 has 6 hollow main frame countersunk holes 4-1-1 on its end face, which are connected one by one to the base through holes 4-6-1 of the two thin-walled C-type telescopic rod stationary end sleeve bases 4-6 and the fixing plate through holes 4-5-1 of the solar cell sail film stationary end triangular fixing plate 4-5, and are fastened by flat-head fasteners.

[0063] The fixed end clamping plate 4-3 of the solar cell sail has four countersunk holes 4-3-1 along the width direction, which are fastened to the fixed end of the solar cell sail 3 by flat-head screws; the fixed end clamping plate 4-3 of the solar cell sail has six countersunk holes 4-3-2 along the length direction, which are fastened to six through holes 5-1-1 evenly distributed on both sides of the laser ranging module 5 by flat-head screws.

[0064] The unrolling device also includes a laser ranging module, which monitors in real time the distance between the main roller 1-11 of the unrolling roller module and the hollow main frame 4-1 of the end fixing module through a laser ranging sensor 5-1; the laser ranging module includes a laser ranging sensor 5-1 located at the end fixing module and an input control screen 5-2 located at the unrolling roller module; the input control screen 5-2 and the end cover 1-10 of the main roller are fixedly connected by set screws.

[0065] The unfolding method of the roll-up flexible solar cell sail film unfolding device, using the roll-up flexible solar cell sail film unfolding device described above, is characterized in that: when the solar cell sail film is in a rolled-up storage state, the motor 1-2 is started to unfold the unfolding device, and the torsion controller 6-4, after receiving the motor signal, drives the torsion shaft to twist, controls the locking latch to rotate, thereby releasing the locking latch.

[0066] The motor is connected to the main drive shaft 1-8 of the main drive shaft end connecting block through a pin shaft. Under the meshing action of the drive shaft 1-5, the small gear 1-6 and the large gear 1-7, the main roller 1-11, which is connected and fixed to the main roller end cover 1-10, begins to rotate.

[0067] When the main roller 1-11 moves away from the hollow main frame 4-1, the two thin-walled C-shaped telescopic rods 2 in the rolled-up state rotate with the main roller 1-11 and undergo elastic deformation. Then, under the action of bending torque, they gradually curl into a cylindrical shape and push the main roller 1-11 to move until they are unfolded to the preset length. At this point, the motor stops running and achieves self-locking.

[0068] The method for retracting a roll-type flexible solar cell sail film roll-up device, using the roll-type flexible solar cell sail film roll-up device described above, is characterized in that: when the solar cell sail film is in the unfolded state, the motor 1-2 is started to retract the roll-up device. The motor is connected to the main drive shaft 1-8 at the end of the main drive shaft connecting block through a pin shaft. Under the meshing action of the drive shaft 1-5, the small gear 1-6 and the large gear 1-7, the main roller 1-11, which is connected and fixed to the main roller end cover 1-10, begins to rotate in the opposite direction.

[0069] When the main roller 1-11 moves toward the hollow main frame 4-1, the two thin-walled C-shaped telescopic rods 2 fixed on the main roller 1-11 roll together along the same curvature direction until the main roller 1-11 and the hollow main frame 4-1 are completely in contact. At this time, the motor stops running and achieves self-locking. After receiving the motor signal, the torsion controller 6-4 drives the torsion shaft to rotate and controls the rotation of the locking jaw to achieve locking of the locking jaw.

[0070] Example:

[0071] like Figure 1 As shown, the present invention proposes a roll-up flexible solar cell sail film unrolling device, which mainly consists of an unrolling roller module, two thin-walled C-shaped telescopic rods, a solar cell sail film, an end fixing module, a laser ranging module, and a locking module.

[0072] In Embodiment 1 of the present invention, the thin-walled C-shaped telescopic rod (2) is composed of a length of L Width is b， Thickness is t The preparation of carbon fiber composite materials yielded an initial radius of R The radius of the roll is r =1.3 R The longitudinal open round rod can be customized according to the actual working conditions; one end of the two thin-walled C-shaped telescopic rods (2) has 4 holes along the width direction for fastening with the main roller (1-11); one end of the solar cell sail (3) has 8 holes along the width direction for fastening with the main roller (1-11); based on this embodiment 1, the two thin-walled C-shaped telescopic rods (2) can also be made of other composite materials or thin-walled metals.

[0073] In Embodiment 2 of the present invention, as Figure 1 , 3As shown in Figure 4, in the rolled-up state, after the motor (1-2) starts, the torsion controller (6-4) drives the torsion shaft to rotate after receiving the motor signal, thereby controlling the rotation of the bayonet and releasing the locking of the bayonet; the main drive shaft (1-8) connected to the end connecting block of the main drive shaft by the pin shaft, under the meshing action of the drive shaft (1-5), the small gear (1-6) and the large gear (1-7), causes the main roller (1-11) which is connected and fixed to the end cover (1-10) of the main roller to start rotating. When the main roller (1-11) moves away from the hollow main frame (4-1), the two thin-walled C-shaped telescopic rods (2) in the rolled-up state rotate with the main roller (1-11) and undergo elastic deformation. Then, under the action of bending torque, they gradually curl into a cylindrical shape and push the main roller (1-11) to move until they are unfolded to the preset length. At this point, the motor stops running and achieves self-locking. In the unfolded state, after the motor (1-2) starts, the main drive shaft (1-8) connected to the end connecting block of the main drive shaft through the pin shaft, under the meshing action of the drive shaft (1-5), the small gear (1-6) and the large gear (1-7), causes the main roller (1-11) which is connected and fixed to the end cover (1-10) of the main roller to start rotating in the opposite direction. When the main roller (1-11) moves toward the hollow main frame (4-1), the two thin-walled C-shaped telescopic rods (2) fixed on the main roller (1-11) roll together along the same curvature direction until the main roller (1-11) and the hollow main frame (4-1) are completely in contact. At this time, the motor stops running and achieves self-locking. After receiving the motor signal, the torsion controller (6-4) drives the torsion shaft to rotate and controls the rotation of the bayonet to achieve the locking of the bayonet.

[0074] In embodiment 3 of the present invention, as Figure 2 , 7 As shown in Figure 8, its end fixing module (4) can keep the relative positions of the two thin-walled C-shaped telescopic rods (2), the solar cell sail (3) and the hollow main frame (4-1) unchanged; the locking modules installed on both sides of the end fixing module (4) and the main roller (1-11) can realize further locking after the device is rolled up. During the entire process of unfolding or rolling up the device, after receiving the signal sent by the motor to start or stop, the torsion controller (6-4) drives the torsion shaft to twist the control bayonet, unlock the device or further strengthen the locking of the overall device.

[0075] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Any modifications, equivalent changes, and alterations made to the contents of the specification and drawings of the present invention based on the technical essence of the present invention shall still be included within the protection scope of the technical solution of the present invention.

Claims

1. A spoolable flexible solar cell sail membrane deployment apparatus characterized by: The system includes a locking device and a parallel-arranged roll-up roller module (1) and an end fixing module (4). The roll-up roller module has a built-in main roller (1-11) connected to a motor (1-2). The side of the main roller is wound with an elastic thin-walled C-shaped telescopic rod (2) whose starting end is fixed at the end fixing module. The thin-walled C-shaped telescopic rod is a support guide for the main roller. When it is wound, it is compressed and unfolds into a plane. The main roller is also wound with a solar cell sail film (3) whose starting end is fixed at the end fixing module. When the solar cell sail film is in a rolled-up storage state, the roll-up roller module and the end fixing module are connected through the locking module. When the solar cell sail film is unfolded, the motor drives the main roller to roll along the support guide and unfolds the solar cell sail film in the process of leaving the end module. The thin-walled C-shaped telescopic rod part that is out of the rolled-up state curls radially with its elastic force to restore it to a C-shaped tube with the opening facing upward. In the process of curling, it pushes the main roller with its elastic force. The end fixing module (4) includes a hollow main frame (4-1), two thin-walled C-shaped telescopic rod stationary end sleeves (4-2), a solar cell film stationary end clamping plate (4-3), a frame shell (4-4), a solar cell film stationary end triangular fixing piece (4-5), and two thin-walled C-shaped telescopic rod stationary end sleeve bases (4-6); the hollow main frame (4-1) is fastened to the two thin-walled C-shaped telescopic rod stationary end sleeve bases (4-6) and the solar cell film stationary end triangular fixing piece (4-5) with set screws; The two thin-walled C-type telescopic rod stationary end sleeves (4-2) are fixedly connected to the two thin-walled C-type telescopic rod stationary end sleeve bases (4-6) by welding; the solar cell canvas stationary end clamping plate (4-3) is fixedly connected to the solar cell canvas stationary end triangular fixing piece (4-5) by flat-head fasteners; the solar cell canvas stationary end clamping plate (4-3) is fastened to the solar cell canvas (3) by flat-head fasteners; the two thin-walled C-type telescopic rod stationary end sleeves (4-2) are fixedly connected to the two thin-walled C-type telescopic rods (2) by adhesive bonding. The rolling device also includes a laser ranging module, which monitors in real time the distance between the main roller (1-11) of the rolling roller module and the hollow main frame (4-1) of the end fixing module through a laser ranging sensor (5-1). The laser ranging module includes a laser ranging sensor (5-1) located at the end fixing module and an input control panel (5-2) located at the roll-up roller module; the input control panel (5-2) and the main roller end cover (1-10) are fixedly connected by set screws. The rolling roller module (1) includes a power supply (1-1), a motor (1-2), a power supply motor base (1-3), a rolling bearing (1-4), a transmission shaft (1-5), a pinion (1-6), a large gear (1-7), a main transmission shaft (1-8), a main transmission shaft end connecting block (1-9), and a main roller end cover (1-10).

2. A spoolable flexible solar cell sail membrane deployment device according to claim 1, characterized in that: Two thin-walled C-shaped telescopic rods are fastened to both ends of the main roller with flat-head fasteners; the solar cell canvas is connected and fixed to the main roller with flat-head fasteners. The power supply (1-1) and motor (1-2) are fixed to the power supply and motor base (1-3) by limiting plates; the motor (1-2) is connected to the transmission shaft (1-5) and the pinion (1-6) by flat-head pins; the pinion (1-6) meshes with the gear (1-7) for transmission, and the gear is fastened to the main transmission shaft (1-8) by a locking screw; The inner ring of the rolling bearing (1-4) is fitted with the main drive shaft (1-8), and the outer ring is fitted with the power motor base (1-3); the end connecting block (1-9) of the main drive shaft is fastened to the main drive shaft (1-8) by a pin. The main drive shaft end connecting block (1-9) and the main roller end cover (1-10) are fixedly connected by set screws; the main roller end cover (1-10) and the main roller (1-11) are fastened together by set screws.

3. A spoolable flexible solar cell sail membrane deployment apparatus according to claim 1, wherein: The locking module includes a locking slot (6-1) located at the end fixing module, and also includes a locking slot (6-2), a locking slot base (6-3), and a torsion controller (6-4) located at the roll-up roller module; the locking slot (6-1) is fixedly connected to the hollow main frame (4-1) of the end fixing module by welding; the locking slot base (6-3) is fixedly connected to the main roller end cap (1-10) of the roll-up roller module by welding; the locking slot (6-2) is fixed to the surface of the main roller end cap (1-10) by a torsion shaft and the torsion controller (6-4).

4. A spoolable flexible solar cell sail membrane deployment apparatus according to claim 1, wherein: The thin-walled C-type telescopic rod is a thin-walled round rod with a longitudinal opening, a central angle of α, and 0.5π≤α<2π, an initial radius of R, a coiling radius of r=1.3R, a length of L, a width of b, and a thickness of t.

5. A spoolable flexible solar cell sail membrane deployment apparatus according to claim 1, wherein: The total length of the hollow main frame (4-1) and the frame shell (4-4) is L1, the length L2 of the bottom of the two thin-walled C-shaped telescopic rod immobile end sleeves is less than 3R 3 / 2 The hollow main frame (4-1) is hollow formed in a width direction into a cylindrical structure, the central angle of the cylindrical structure is π, the radius is R1, the width is b1, and the height is h.

6. The roll-up flexible solar cell film unrolling device according to claim 3, characterized in that: The outer surface of the main roller (1-11) has 16 countersunk holes (1-11-1) along the axial direction; the radius of the main roller (1-11) is r+t; the length of the main roller (1-11) is determined by the width of the two thin-walled C-shaped telescopic rods (2) and the solar cell sail (3); The countersunk holes (1-11-1) on the main roller correspond one-to-one with the telescopic rod through holes (2-1) on the two thin-walled C-type telescopic rods (2) and the through holes (3-1) on the solar cell canvas (3), and are fastened together by flat-head screws. The two thin-walled C-shaped telescopic rods (2) have four telescopic rod through holes (2-1) along the width direction at one end, which are used to fasten the rods to the countersunk holes (1-11-1) of the rollers by means of flat-head screws; The solar cell sail (3) has eight sail through holes (3-1) along the width direction at one end, which are used to fasten the sail to the countersunk hole (1-11-1) of the roller by means of flat-head screws; The power supply (1-1) and motor (1-2) of the roll-up roller module are fixed to the inside of the power supply motor base (1-3) of the roll-up roller module by limiting plates; The hollow main frame (4-1) has 6 hollow main frame countersunk holes (4-1-1) on its end face, which are connected one by one to the base through holes (4-6-1) of the two thin-walled C-type telescopic rod stationary end sleeve bases (4-6) and the fixing plate through holes (4-5-1) of the stationary end triangular fixing plate (4-5) of the solar cell canvas, and are fastened by flat-head fasteners; The fixed end clamping plate (4-3) of the solar cell sail has four countersunk holes (4-3-1) along the width direction, which are fastened to the fixed end of the solar cell sail (3) by flat-head screws; the fixed end clamping plate (4-3) of the solar cell sail has six countersunk holes (4-3-2) along the length direction, which are fastened to the six through holes (5-1-1) evenly distributed on both sides of the laser ranging module (5) by flat-head screws.

7. A method for unfolding a roll-up flexible solar cell sail film unrolling device, using the roll-up flexible solar cell sail film unrolling device as described in claim 3, characterized in that: When the solar cell film is in a rolled-up storage state, the motor (1-2) is started to unfold the rolling device. After receiving the motor signal, the torsion controller (6-4) drives the torsion shaft to rotate, controlling the locking latch to rotate and thus releasing the locking latch. The motor is connected to the main drive shaft (1-8) of the main drive shaft end connecting block via a pin. Under the meshing action of the drive shaft (1-5), the small gear (1-6) and the large gear (1-7), the main roller (1-11) which is connected and fixed to the main roller end cover (1-10) begins to rotate. When the main roller (1-11) moves away from the hollow main frame (4-1), the two thin-walled C-shaped telescopic rods (2) in the rolled-up state rotate with the main roller (1-11) and undergo elastic deformation. Then, under the action of bending torque, they gradually curl into a cylindrical shape and push the main roller (1-11) to move until they are unfolded to the preset length, at which point the motor stops running and achieves self-locking.

8. A method for retracting a roll-up flexible solar cell sail film unwinding device, using the roll-up flexible solar cell sail film unwinding device as described in claim 3, characterized in that: When the solar cell film is in the unfolded state, the motor (1-2) is started to retract the roll-up device. The motor is connected to the main drive shaft (1-8) of the main drive shaft end connecting block through the pin shaft. Under the meshing action of the drive shaft (1-5), the small gear (1-6) and the large gear (1-7), the main roller (1-11) which is connected and fixed to the main roller end cover (1-10) begins to rotate in the opposite direction. When the main roller (1-11) moves toward the hollow main frame (4-1), the two thin-walled C-shaped telescopic rods (2) fixed on the main roller (1-11) roll together along the same curvature direction until the main roller (1-11) and the hollow main frame (4-1) are completely in contact. At this time, the motor stops running and achieves self-locking. After receiving the motor signal, the torsion controller (6-4) drives the torsion shaft to rotate and controls the rotation of the locking jaw to achieve locking of the locking jaw.

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