Scroll type flexible solar cell sail film rolling and unfolding device

Abstract

The utility model provides a scroll type flexible solar cell sail film rolling and unfolding device which comprises a locking device, a rolling and unfolding rolling shaft module and an end fixing module, wherein the rolling and unfolding rolling shaft module and the end fixing module are arranged in parallel. A main body rolling shaft connected with a motor is arranged in the rolling and unfolding rolling shaft module; an elastic thin-wall C-shaped telescopic rod of which the side winding starting end of the main body rolling shaft is fixed at the end part fixing module is used as a supporting guide piece of the main body rolling shaft, and the elastic thin-wall C-shaped telescopic rod is pressed in a winding state and is unfolded into a plane; a solar cell sail film of which the initial end is fixed at the end part fixing module is also wound on the main body rolling shaft; in a storage state, the rolling and unfolding rolling shaft module is connected with the end part fixing module through a locking device; during unfolding, the motor drives the main body rolling shaft to roll along the supporting guide part, the sail film is unfolded when the main body rolling shaft is far away from the end part module, the thin-wall C-shaped telescopic rod part which is separated from the winding state recovers to be a C-shaped tube with an upward opening, and the main body rolling shaft is pushed by the elastic force of the thin-wall C-shaped telescopic rod part; according to the utility model, the solar cell sail film can be repeatedly unfolded and folded stably and efficiently in a severe environment.

Description

Technical Field

[0001] The utility model relates to the technical field of aerospace folding and unfolding mechanisms, in particular to a roll-up flexible solar cell sail film rolling and unfolding device. Background Art

[0002] 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 size, and launch mass. Onboard resources are extremely limited, and traditional rigid / semi-rigid solar wings are difficult to meet the requirements of high mass power and volume power for multiple satellites launched with one rocket. Flexible solar wings use the strain energy stored in thin-walled telescopic rods to achieve in-orbit deployment. They have a small folded volume and do not require deployment mechanisms such as hinges. They are an important development direction for future spacecraft.

[0003] Therefore, in response to the needs of unmanned driving and efficient storage of flexible solar cell sail films, the utility model utilizes the large deformation and rolling-up characteristics of composite materials or thin-walled metals to design and develop a roll-up flexible solar cell sail film rolling-up device, which meets the requirements of high mass power-to-weight and volume power-to-weight for satellites launched with one rocket. It has the advantages of light weight and high strength, stable and controllable rolling-up process, and high storage ratio, and can realize stable and efficient repeated unfolding and rolling-up of solar cell sail films in aerospace environments. Summary of the invention

[0004] The utility model provides a roll-up flexible solar cell sail film unrolling device, which can stably and efficiently perform repeated unrolling and rolling of the solar cell sail film in a harsh environment.

[0005] The utility model adopts the following technical solutions.

[0006] A roll-up flexible solar cell sail film unrolling device comprises a locking device and a roll-up roller module (1) and an end fixing module (4) arranged in parallel; the roll-up roller module has a main body roller (1-11) connected to a motor (1-2) built therein; the side of the main body 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 being a supporting guide for the main body roller and being compressed and unfolded into a plane when in a wound state; the main body 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 wound up storage state, the roll-up roller module is connected to the end fixing module via the locking module; when the solar cell sail film is unrolled, the motor drives the main body roller to roll along the supporting guide, and unrolls the solar cell sail film in the process of leaving the end module, and the thin-walled C-shaped telescopic rod portion that is out of the wound state is radially rolled back to a C-shaped tube with an opening facing upwards by its elastic force, and pushes the main body roller by its elastic force during the rolling process.

[0007] There are two thin-walled C-shaped telescopic rods, which are fastened to both ends of the main roller via flat-head fasteners; the solar cell sail film is connected and fixed to the main roller via flat-head fasteners;

[0008] The unrolling roller module (1) comprises 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 small gear (1-6), a large gear (1-7), a main transmission shaft (1-8), a main transmission shaft end connection 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 motor base (1-3) via a limit plate; the motor (1-2) is connected to the transmission shaft (1-5) and the small gear (1-6) via a flat head pin; the small gear (1-6) is connected to the main transmission shaft (1-8), and the main transmission shaft (1-9) is connected to the main transmission shaft (1-10). The gear (1-6) is meshed with the large gear (1-7) for transmission, and the large gear is fastened to the main transmission shaft (1-8) by means of a set screw; the inner ring of the rolling bearing (1-4) is matched with the main transmission shaft (1-8), and the outer ring is matched with the power supply motor base (1-3); the main transmission shaft end connection block (1-9) is fastened to the main transmission shaft (1-8) by means of a pin shaft; the main transmission shaft end connection block (1-9) is fixedly connected to the main roller end cover (1-10) by means of a set screw; and the main roller end cover (1-10) is fastened to the main roller (1-11) by means of a set screw.

[0009] The end fixing module (4) comprises a hollow main frame (4-1), two thin-walled C-shaped telescopic rod fixed end sleeves (4-2), a solar cell sail film fixed end clamp (4-3), a frame shell (4-4), a solar cell sail film fixed end triangular fixing piece (4-5) and two thin-walled C-shaped telescopic rod fixed end sleeve bases (4-6); the hollow main frame (4-1) is respectively fastened to the two thin-walled C-shaped telescopic rod fixed end sleeve bases (4-6) and the solar cell sail film fixed end triangular fixing piece (4-5) by means of set screws;

[0010] The two thin-walled C-shaped telescopic rod fixed end sleeves (4-2) and the two thin-walled C-shaped telescopic rod fixed end sleeve bases (4-6) are fixedly connected by welding; the solar cell sail film fixed end clamping plate (4-3) and the solar cell sail film fixed end triangular fixing plate (4-5) are fixedly connected by flat head fasteners; the solar cell sail film fixed end clamping plate (4-3) and the solar cell sail film (3) are fastened by flat head fasteners; and the two thin-walled C-shaped telescopic rod fixed end sleeves (4-2) are respectively fixedly connected to the two thin-walled C-shaped telescopic rods (2) by gluing.

[0011] The locking module (6) comprises a locking bayonet slot (6-1) located at the end fixing module, and also comprises a locking bayonet (6-2), a locking bayonet base (6-3) and a torsion controller (6-4) located at the unwinding roller module; the locking bayonet slot (6-1) and the hollow main body frame (4-1) of the end fixing module are fixedly connected by welding; the locking bayonet base (6-3) and the main body roller end cover (1-10) of the unwinding roller module are fixedly connected by welding; the locking bayonet (6-2) is fixed to the surface of the main body roller end cover (1-10) via a torsion shaft and a torsion controller (6-4).

[0012] The thin-walled C-shaped telescopic rod is a thin-walled round rod with a longitudinal opening, and its central angle is α , and 0.5π ≤ α <2π, the initial radius is R The rolling radius is r =1.3 R , the length is L , the 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 fixed end sleeve of the two thin-walled C-shaped telescopic rods is L 2 < 3 R 3 / 2 The hollow main frame (4-1) is hollowed out in the wide direction to form a cylindrical structure, the central angle of the cylindrical structure is π, and the radius is R 1 , the 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 roller 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 widths of the two thin-walled C-shaped telescopic rods (2) and the solar cell sail film (3);

[0015] The roller countersunk holes (1-11-1) on the main roller respectively correspond to the telescopic rod through holes (2-1) on the two thin-walled C-shaped telescopic rods (2) and the sail film through holes (3-1) on the solar cell sail film (3), and are fastened and connected by flat head screws;

[0016] 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 for fastening with flat head screws and roller countersunk holes (1-11-1);

[0017] One end of the solar cell sail film (3) is provided with eight sail film through holes (3-1) along the width direction, which are used for fastening and connecting with the roller countersunk holes (1-11-1) via flat head screws;

[0018] The power supply (1-1) and the motor (1-2) of the rolling roller module are fixed to the inner side of the power supply motor base (1-3) of the rolling roller module via a limiting plate;

[0019] The end surface of the hollow main frame (4-1) is provided with six hollow main frame countersunk holes (4-1-1), which are connected one by one to the base through holes (4-6-1) of the sleeve bases (4-6) at the fixed ends of the two thin-walled C-shaped telescopic rods and the fixing plate through holes (4-5-1) of the triangular fixing plates (4-5) at the fixed ends of the solar cell sail membranes, and are fastened by flat head fasteners;

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

[0021] The unrolling device further comprises a laser distance measuring module, which monitors 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 in real time through a laser distance measuring sensor (5-1); the laser distance measuring module comprises a laser distance measuring sensor (5-1) arranged at the end fixing module and an input end control screen (5-2) arranged at the unrolling roller module; the input end control screen (5-2) and the main roller end cover (1-10) are fixedly connected by a set screw.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] (1) In the present invention, through modular mechanism design, two thin-walled C-shaped telescopic rods and solar cell sail film can be repeatedly unfolded and rolled up synchronously with the main body roller under the drive of the motor;

[0024] (2) In the present invention, the design of the end fixing module enables two thin-walled C-shaped telescopic rods and the solar cell sail film to be fixedly connected as required, thereby realizing the integration of the whole machine;

[0025] (3) In the present invention, by setting up a thin-walled C-shaped telescopic rod and a laser ranging module, a long-distance, unmanned intelligent monitoring function can be realized;

[0026] (4) The utility model can meet the requirements of high mass power ratio and volume power ratio of satellites for launching multiple satellites with one rocket, and has the advantages of light weight and high strength, stable and controllable unrolling process, and high storage ratio. It can realize stable and efficient repeated unfolding and rewinding of the solar cell sail film.

[0027] The utility model utilizes the structural regulation and deformation characteristics of the prestressed bistable composite material of two thin-walled C-shaped telescopic rods to provide a certain prestress and elastic force during the retraction and extension process, thereby avoiding the jamming phenomenon during long-distance retraction and extension. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0029] Attached Figure 1 It is a schematic diagram of the expanded structure of the overall device of the utility model;

[0030] Attached Figure 2 It is a schematic diagram of the folding structure of the overall device of the utility model;

[0031] Attached Figure 3 This is a schematic diagram of the structure of the solar cell sail film of the utility model;

[0032] Attached Figure 4 It is a schematic diagram of the unrolling roller module of the utility model;

[0033] Attached Figure 5 This is a schematic diagram of the structure of the thin-walled C-shaped telescopic rod of the utility model;

[0034] Attached Figure 6 This is a rear view schematic diagram of the end fixing module of the utility model;

[0035] Attached Figure 7 This is a three-axis schematic diagram of the end fixing module of the utility model;

[0036] Attached Figure 8 This is a schematic diagram of the fixed end clamp structure of the solar cell sail film of the utility model;

[0037] In the figure: 1-1 power supply, 1-2 motor, 1-3 power supply motor base, 1-4 rolling bearing, 1-5 transmission shaft, 1-6 small gear, 1-7 large gear, 1-8 main transmission shaft, 1-9 main transmission shaft end connection block, 1-10 main roller end cover, 1-11 main roller, 1-11-1 roller countersunk hole;

[0038] 2. Thin-walled C-type telescopic rod, 2-1 telescopic rod through hole,

[0039] 3. Solar cell sail film, 3-1 sail film through hole,

[0040] 4-1 hollow main frame, 4-2 two thin-walled C-type telescopic rod fixed end sleeves, 4-3 solar cell sail film fixed end clamp, 4-4 frame shell, 4-5 solar cell sail film fixed end triangular fixing plate, 4-6, thin-walled C-type telescopic rod fixed end sleeve base,

[0041] 4-1-1 hollow main frame countersunk hole, 4-3-1 solar cell sail film fixed end countersunk hole, 4-3-2 clamp plate countersunk hole, 4-5-1, fixed plate through hole, 4-6-1, base through hole,

[0042] 5-1 laser ranging sensor, 5-2 input end control panel, 5-1-1 6 through holes evenly distributed on both sides of the laser ranging module, 6-1 locking bayonet slot, 6-2 locking bayonet, 6-3 locking bayonet base, 6-4 torsion controller, 6-locking module. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] As shown in the figure, a roll-up flexible solar cell sail film unrolling device comprises a locking device and a parallel unrolling roller module 1 and an end fixing module 4; the unrolling roller module has a built-in main body roller 1-11 connected to a motor 1-2; the side of the main body roller is wound with an elastic thin-walled C-shaped telescopic rod 2 fixed at the end fixing module at the beginning, and the thin-walled C-shaped telescopic rod is a supporting guide for the main body roller, which is compressed and unfolded into a plane in the wound state; the main body roller is also wound with a solar cell sail film 3 with the beginning fixed at the end fixing module; when the solar cell sail film is in a rolled-up storage state, the unrolling roller module is connected to the end fixing module via the locking module; when the solar cell sail film is unfolded, the motor drives the main body roller to roll along the supporting guide, and unfolds the solar cell sail film in the process of leaving the end module, and the thin-walled C-shaped telescopic rod part that is out of the wound state is radially curled by its elastic force to return to a C-shaped tube with an opening facing upward, and pushes the main body roller with its elastic force during the curling process.

[0045] There are two thin-walled C-shaped telescopic rods, which are fastened to both ends of the main roller via flat-head fasteners; the solar cell sail film is connected and fixed to the main roller via flat-head fasteners;

[0046] The unwinding 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 connection 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 motor base 1-3 by a limit plate; the motor 1-2 is connected to the transmission shaft 1-5 and the pinion 1-6 by a flat head pin; the pinion 1-6 and The large gear 1-7 is meshed for transmission, and the large gear is fastened to the main transmission shaft 1-8 with a set screw; the inner ring of the rolling bearing 1-4 cooperates with the main transmission shaft 1-8, and the outer ring cooperates with the power supply motor base 1-3; the main transmission shaft end connecting block 1-9 is fastened to the main transmission shaft 1-8 with a pin shaft; the main transmission shaft end connecting block 1-9 is fixedly connected to the main roller end cover 1-10 by a set screw; the main roller end cover 1-10 is fastened to the main roller 1-11 with a set screw.

[0047] The end fixing module 4 comprises a hollow main frame 4-1, two thin-walled C-type telescopic rod fixed end sleeves 4-2, a solar cell sail film fixed end clamp 4-3, a frame shell 4-4, a solar cell sail film fixed end triangular fixing piece 4-5 and two thin-walled C-type telescopic rod fixed end sleeve bases 4-6; the hollow main frame 4-1 is respectively fastened to the two thin-walled C-type telescopic rod fixed end sleeve bases 4-6 and the solar cell sail film fixed end triangular fixing piece 4-5 by using set screws;

[0048] The two thin-walled C-type telescopic rod fixed end sleeves 4-2 and the two thin-walled C-type telescopic rod fixed end sleeve bases 4-6 are fixedly connected by welding; the solar cell sail film fixed end clamping plate 4-3 and the solar cell sail film fixed end triangular fixing plate 4-5 are fixedly connected by flat head fasteners; the solar cell sail film fixed end clamping plate 4-3 and the solar cell sail film 3 are fastened by flat head fasteners; the two thin-walled C-type telescopic rod fixed end sleeves 4-2 are fixedly connected to the two thin-walled C-type telescopic rods 2 respectively by gluing.

[0049] The locking module 6 includes a locking bayonet slot 6-1 located at the end fixing module, and also includes a locking bayonet 6-2, a locking bayonet base 6-3 and a torsion controller 6-4 located at the unwinding roller module; the locking bayonet slot 6-1 is fixedly connected to the hollow main frame 4-1 of the end fixing module by welding; the locking bayonet base 6-3 is fixedly connected to the main roller end cover 1-10 of the unwinding roller module by welding; the locking bayonet 6-2 is fixed to the surface of the main roller end cover 1-10 through the torsion shaft and the torsion controller 6-4.

[0050] The thin-walled C-shaped telescopic rod is a thin-walled round rod with a longitudinal opening, and its central angle isα , and 0.5π≤ α <2π, the initial radius is R The rolling radius is r =1.3 R , the length is L , the width is b , thickness is t , its size can be customized according to actual working conditions.

[0051] 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 fixed end sleeve of the two thin-walled C-shaped telescopic rods is L 2 < 3 R 3 / 2 The hollow main frame 4-1 is hollowed out in the wide direction to form a cylindrical structure, the central angle of the cylindrical structure is π, and the radius is R 1 , the width is b 1 , the height is h , its size can be customized according to actual working conditions.

[0052] The outer surface of the main roller 1-11 has 16 roller 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;

[0053] The roller countersunk holes 1-11-1 on the main roller respectively correspond to the telescopic rod through holes 2-1 on the two thin-walled C-shaped telescopic rods 2 and the sail film through holes 3-1 on the solar cell sail film 3, and are fastened and connected by flat head screws;

[0054] 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 with the roller countersunk holes 1-11-1 through flat head screws;

[0055] One end of the solar cell sail film 3 is provided with 8 sail film through holes 3-1 along the width direction, which are used to be fastened and connected with the roller countersunk holes 1-11-1 by flat head screws;

[0056] The power supply 1-1 and the motor 1-2 of the unrolling roller module are fixed to the inner side of the power supply motor base 1-3 of the unrolling roller module through a limiting piece;

[0057] The end surface of the hollow main frame 4-1 has 6 hollow main frame countersunk holes 4-1-1, which are connected one by one to the base through holes 4-6-1 of the sleeve base 4-6 at the fixed end of the two thin-walled C-shaped telescopic rods and the fixing plate through holes 4-5-1 of the triangular fixing plate 4-5 at the fixed end of the solar cell sail film, and are fastened by flat head fasteners;

[0058] The fixed end clamping plate 4-3 of the solar cell sail film has four fixed end countersunk holes 4-3-1 of the solar cell sail film along the width direction, which are fastened to the fixed end of the solar cell sail film 3 by flat head screws; the fixed end clamping plate 4-3 of the solar cell sail film has six clamping plate 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.

[0059] The unrolling device also includes a laser ranging module, which monitors 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 in real time through a laser ranging sensor 5-1; the laser ranging module includes a laser ranging sensor 5-1 arranged at the end fixing module and an input end control screen 5-2 arranged at the unrolling roller module; the input end control screen 5-2 is fixedly connected to the main roller end cover 1-10 by a set screw.

[0060] The method for unfolding a roll-up flexible solar cell sail film unwinding device uses the roll-up flexible solar cell sail film unwinding device described above, 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 unwinding device, and the torsion controller 6-4 drives the torsion shaft to twist after receiving the motor signal, controls the locking bayonet to rotate, and thus releases the locking bayonet;

[0061] The motor is connected to the main transmission shaft 1-8 of the connecting block at the end of the main transmission shaft through a pin shaft, and under the meshing action of the transmission shaft 1-5, the small gear 1-6 and the large gear 1-7, the main roller 1-11 connected and fixed to the main roller end cover 1-10 starts to rotate;

[0062] 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, and then gradually curl into a cylindrical shape under the action of the bending moment and push the main roller 1-11 to move until it is unfolded to a preset length, and the motor stops running and achieves self-locking;

[0063] The method for folding a roll-up flexible solar cell sail film unrolling device uses the roll-up flexible solar cell sail film unrolling device described above, characterized in that: when the solar cell sail film is in an unfolded state, the motor 1-2 is started to fold the unrolling device, and the motor is connected to the main transmission shaft 1-8 of the main transmission shaft end connecting block through a pin shaft, and under the meshing action of the transmission shaft 1-5, the small gear 1-6 and the large gear 1-7, the main roller 1-11 connected and fixed to the main roller end cover 1-10 starts to rotate in the opposite direction;

[0064] Among them, 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 are rolled up along the same curvature direction until the main roller 1-11 is completely in contact with the hollow main frame 4-1. At this time, the motor stops running and self-locking is achieved. After receiving the motor signal, the torsion controller 6-4 drives the torsion shaft to twist, controls the rotation of the locking bayonet, and thus achieves the locking of the locking bayonet.

[0065] Example:

[0066] like Figure 1 As shown, the utility model proposes a roll-up flexible solar cell sail film unrolling device, which is mainly composed 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.

[0067] In Example 1 of the utility model, the thin-walled C-shaped telescopic rod (2) is composed of a length of L , the width is b， Thickness t The carbon fiber composite material is prepared and the initial radius is R The rolling radius is r =1.3 R The two thin-walled C-shaped telescopic rods (2) are provided with four holes along the width direction at one end thereof for fastening to the main roller (1-11); and the solar cell sail film (3) is provided with eight holes along the width direction at one end thereof for fastening to the main roller (1-11). Based on the embodiment 1, the two thin-walled C-shaped telescopic rods (2) may also be made of other composite materials or thin-walled metals.

[0068] In Example 2 of the present utility model, Figure 1 , 3As shown in 4, in the rolled-up state, after the motor (1-2) is started, the torsion controller (6-4) drives the torsion shaft to twist after receiving the motor signal, controls the rotation of the bayonet, and thus releases the locking of the bayonet; the main transmission shaft (1-8) connected to the main transmission shaft end connecting block through the pin shaft causes the main roller (1-11) connected and fixed to the main roller end cover (1-10) to start rotating under the meshing action of the transmission shaft (1-5), the small gear (1-6) and the large gear (1-7). When the main roller (1-11) moves in a direction 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, and then gradually curl into a cylindrical shape under the action of a bending moment and push the main roller (1-11) to move until it is unfolded to a preset length, at which time the motor stops running and achieves self-locking; in the unfolded state, after the motor (1-2) is started, the main transmission shaft (1-8) connected to the main transmission shaft end connection block through the pin is meshed with the transmission shaft (1-5), the small gear (1-6) and the large gear (1-7), so that the main roller (1-11) connected and fixed to the main roller end cover (1-10) starts to rotate in the opposite direction. When the main body roller (1-11) moves toward the hollow main body frame (4-1), two thin-walled C-shaped telescopic rods (2) fixed to the main body roller (1-11) are rolled up along the same curvature direction until the main body roller (1-11) and the hollow main body frame (4-1) are completely fitted together. At this time, the motor stops running and self-locking is achieved. After receiving the motor signal, the torsion controller (6-4) drives the torsion shaft to twist, controls the rotation of the bayonet, and thus achieves the locking of the bayonet.

[0069] In Example 3 of the present utility model, Figure 2 , 7 As shown in , its end fixing module (4) can keep the relative positions of the two thin-walled C-shaped telescopic rods (2), the solar cell sail film (3) and the hollow main frame (4-1) unchanged; the locking modules (6) installed on both sides of the end fixing module (4) and the main roller (1-11) can achieve further locking of the device after it is rolled up. During the entire process of unfolding or rolling up the device, the torsion controller (6-4) drives the torsion shaft to twist the control bayonet after receiving the signal sent by the motor to start or stop, thereby unlocking the device or further strengthening the locking of the entire device.

[0070] The above description is only a preferred embodiment of the utility model and does not limit the technical scope of the utility model. Any modifications, equivalent changes and modifications made to the contents of the utility model specification and drawings using the technical essence of the utility model are still included in the protection scope of the technical solution of the utility model.

Claims

1. A roll-up flexible solar cell sail film unrolling device, characterized in that: The invention comprises a locking device and a rolling roller module (1) and an end fixing module (4) arranged in parallel; the rolling roller module has a main roller (1-11) connected to a motor (1-2) built therein; a 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 being a supporting guide for the main roller and being compressed and unfolded into a plane when in a wound state; 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 wound-up storage state, the rolling roller module is connected to the end fixing module via the locking module; when the solar cell sail film is unfolded, the motor drives the main roller to roll along the supporting guide, and unfolds the solar cell sail film in the process of leaving the end module, and the thin-walled C-shaped telescopic rod portion that is out of the wound state is radially curled by its elastic force to recover into a C-shaped tube with an opening facing upward, and pushes the main roller by its elastic force during the curling process.

2. The roll-up flexible solar cell sail film unrolling device according to claim 1, characterized in that: There are two thin-walled C-shaped telescopic rods, which are fastened to both ends of the main roller via flat-head fasteners; the solar cell sail film is connected and fixed to the main roller via flat-head fasteners; The unrolling roller module (1) comprises 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 small gear (1-6), a large gear (1-7), a main transmission shaft (1-8), a main transmission shaft end connection 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 motor base (1-3) via a limit plate; the motor (1-2) is connected to the transmission shaft (1-5) and the small gear (1-6) via a flat head pin; the small gear (1-6) is connected to the main transmission shaft (1-8), and the main transmission shaft (1-9) is connected to the main transmission shaft (1-10). The gear (1-6) is meshed with the large gear (1-7) for transmission, and the large gear is fastened to the main transmission shaft (1-8) by means of a set screw; the inner ring of the rolling bearing (1-4) is matched with the main transmission shaft (1-8), and the outer ring is matched with the power supply motor base (1-3); the main transmission shaft end connection block (1-9) is fastened to the main transmission shaft (1-8) by means of a pin shaft; the main transmission shaft end connection block (1-9) is fixedly connected to the main roller end cover (1-10) by means of a set screw; and the main roller end cover (1-10) is fastened to the main roller (1-11) by means of a set screw.

3. The roll-up flexible solar cell sail film unrolling device according to claim 2, characterized in that: The end fixing module (4) comprises a hollow main frame (4-1), two thin-walled C-shaped telescopic rod fixed end sleeves (4-2), a solar cell sail film fixed end clamp (4-3), a frame shell (4-4), a solar cell sail film fixed end triangular fixing piece (4-5) and two thin-walled C-shaped telescopic rod fixed end sleeve bases (4-6); the hollow main frame (4-1) is respectively fastened to the two thin-walled C-shaped telescopic rod fixed end sleeve bases (4-6) and the solar cell sail film fixed end triangular fixing piece (4-5) by means of set screws; The two thin-walled C-shaped telescopic rod fixed end sleeves (4-2) and the two thin-walled C-shaped telescopic rod fixed end sleeve bases (4-6) are fixedly connected by welding; the solar cell sail film fixed end clamping plate (4-3) and the solar cell sail film fixed end triangular fixing plate (4-5) are fixedly connected by flat head fasteners; the solar cell sail film fixed end clamping plate (4-3) and the solar cell sail film (3) are fastened by flat head fasteners; and the two thin-walled C-shaped telescopic rod fixed end sleeves (4-2) are respectively fixedly connected to the two thin-walled C-shaped telescopic rods (2) by gluing.

4. The roll-up flexible solar cell sail film unrolling device according to claim 3, characterized in that: The locking module (6) comprises a locking bayonet slot (6-1) located at the end fixing module, and also comprises a locking bayonet (6-2), a locking bayonet base (6-3) and a torsion controller (6-4) located at the unwinding roller module; the locking bayonet slot (6-1) and the hollow main body frame (4-1) of the end fixing module are fixedly connected by welding; the locking bayonet base (6-3) and the main body roller end cover (1-10) of the unwinding roller module are fixedly connected by welding; the locking bayonet (6-2) is fixed to the surface of the main body roller end cover (1-10) via a torsion shaft and a torsion controller (6-4).

5. The roll-up flexible solar cell sail film unrolling device according to claim 4, characterized in that: The thin-walled C-shaped telescopic rod is a thin-walled round rod with a longitudinal opening, and its central angle is α , and 0.5π ≤ α <2π, the initial radius is R The rolling radius is r =1.3 R , the length is L , the width is b , thickness is t .

6. The roll-up flexible solar cell sail film unrolling device according to claim 3, characterized in that: 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 fixed end sleeve of the two thin-walled C-shaped telescopic rods is L 2 < 3 R 3 / 2 The hollow main frame (4-1) is hollowed out in the wide direction to form a cylindrical structure, the central angle of the cylindrical structure is π, and the radius is R 1 , the width is b 1 , the height is h .

7. The roll-up flexible solar cell sail film unrolling device according to claim 4, characterized in that: The outer surface of the main roller (1-11) has 16 roller 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); The roller 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-shaped telescopic rods (2) and the sail film through holes (3-1) on the solar cell sail film (3), and are fastened and connected by flat head screws.

8. The roll-up flexible solar cell sail film unrolling device according to claim 7, characterized in that: 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 for fastening with flat head screws and roller countersunk holes (1-11-1); One end of the solar cell sail film (3) is provided with eight sail film through holes (3-1) along the width direction, which are used for fastening and connecting with the roller countersunk holes (1-11-1) via flat head screws; The power supply (1-1) and the motor (1-2) of the unrolling roller module are fixed to the inner side of the power supply motor base (1-3) of the unrolling roller module via a limiting plate.

9. The roll-up flexible solar cell sail film unrolling device according to claim 8, characterized in that: The end surface of the hollow main frame (4-1) is provided with six hollow main frame countersunk holes (4-1-1), which are connected one by one to the base through holes (4-6-1) of the sleeve bases (4-6) at the fixed ends of the two thin-walled C-shaped telescopic rods and the fixing plate through holes (4-5-1) of the triangular fixing plates (4-5) at the fixed ends of the solar cell sail membranes, and are fastened by flat head fasteners; The solar cell sail film fixed end clamping plate (4-3) has four solar cell sail film fixed end countersunk holes (4-3-1) along the width direction, and is fastened to the fixed end of the solar cell sail film (3) by means of flat head screws; the solar cell sail film fixed end clamping plate (4-3) has six clamping plate countersunk holes (4-3-2) along the length direction, and is fastened to six through holes (5-1-1) evenly distributed on both sides of the laser ranging module (5) by means of flat head screws.

10. The roll-up flexible solar cell sail film unrolling device according to claim 2, characterized in that: The unrolling device further comprises a laser distance measuring module, which monitors 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 in real time through a laser distance measuring sensor (5-1); the laser distance measuring module comprises a laser distance measuring sensor (5-1) arranged at the end fixing module and an input end control screen (5-2) arranged at the unrolling roller module; the input end control screen (5-2) and the main roller end cover (1-10) are fixedly connected by a set screw.

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