A winding type solar wing compacting mechanism

Abstract

The application relates to the technical field of solar wings, in particular to a winding type solar wing pressing mechanism, which comprises a base plate, pressing mechanisms, solar wings, the base plate is arranged at the lower end of the whole mechanism and is connected with the main body of a spacecraft, pressing mechanisms are arranged on the left and right sides of the upper end of the base plate, the solar wings are arranged between the pressing mechanisms, the pressing mechanisms can clamp and limit the two ends of the solar wings, the solar wings are composed of flexible solar cell blankets, one end of each solar wing is fixedly connected with a mounting rod and is wound around the mounting rod, accommodating portions are arranged at the two ends in the mounting rod, control rods are slidably arranged in the accommodating portions, a partition portion is arranged in the middle of the mounting rod to separate the two accommodating portions, second limiting grooves are uniformly arranged around the partition portion, and drive rods are screw-connected with the control rods; the control rods can be automatically switched to the inner rods of the solar wings by the driving motor after the driving pressing device is unlocked, and the solar wings can be unfolded and folded by cooperation with unfolding mechanisms.

Description

Technical Field

[0001] The present invention relates to a solar wing deployment mechanism, and in particular to a winding solar wing pressing mechanism. Background Art

[0002] During long-term in-orbit operations, spacecraft rely primarily on solar panels to provide power. Using attached solar cells, these panels convert sunlight into electricity for the spacecraft. The solar panels operate in the following manner: during launch, they are stowed to minimize their footprint; they need to be securely locked to withstand the vibrations of the ascent. Once in orbit, they deploy to generate electricity; they need to be locked in this state to increase the fundamental frequency of deployment.

[0003] However, the overall structure of the existing solar wing is relatively complex, and each mechanism can only perform one function. The structure between each mechanism is not compact enough, which leads to waste of space and increase of control cost. It cannot meet the demand for lightweight and miniaturized solar wings. In addition, for special application scenarios where spacecraft have the need for repeated folding and unfolding functions and have high requirements on weight and folding envelope, the existing solar wing still has certain shortcomings. Summary of the Invention

[0004] Therefore, the present invention is made in view of the above problems. The purpose of the present invention is to combine the pressing mechanism with the unfolding and folding mechanism to achieve the effect of simplifying the overall mechanism. The present invention achieves the above purpose through the following technical solutions:

[0005] The solar wing is mounted on the upper surface of the solar cell and is fixedly mounted on the support frame of the solar cell to the support member.

[0006] Preferably, control grooves are evenly opened on the edges around the clamping mechanism, and a through groove is opened at the center of the clamping mechanism. The control grooves are inclined and extend away from the through grooves, and the vertical cross-sectional area of ​​the control grooves gradually increases from right to left.

[0007] Preferably, a driving gear is rotatably installed at the center of the clamping mechanism and located at the through slot, and a through hole adapted to the through slot is provided at the center of the driving gear, four first limiting slots are evenly distributed on the periphery of the driving gear, and the first limiting member is adapted to the first limiting slot.

[0008] Preferably, four control gears are evenly distributed around the driving gear, and the four control gears can be rotatably mounted on the clamping mechanism. A rotating rod is fixedly provided on the right end of the control gear, and a threaded groove is provided on the outer periphery of the four rotating rods, and the rotating rod is threadedly connected to the clamping piece.

[0009] Preferably, a sliding part is fixedly provided at the left end of the clamping part, and the sliding part can be slidably installed in the control groove. A telescopic part is telescopically installed on the side of the clamping part toward the center, and the telescopic part can be installed on the rotating rod through the installation groove opened at its center, and a thread is provided on the inner side of the installation groove.

[0010] Preferably, a scissor mechanism is installed at the lower end of the base plate, and the scissor mechanism is driven to unfold by a power box located at the rear end thereof, and the power box is fixedly arranged at the lower end of the base plate.

[0011] Preferably, the left end of the driving rod passes through the through slot and is fixedly connected to the output end of the driving motor, and the right end of the driving rod passes through the driving gear located at the right end, and there is no contact between the driving rod and the through slot.

[0012] Preferably, guide plates are fixedly provided at both ends of the front upper end of the base plate, and two guide rods located in the same vertical direction are rotatably installed between the two guide plates, and the solar wing can pass between the two guide rods.

[0013] Beneficial effects of the present invention:

[0014] 1. The present invention can fully compress the two ends and four sides of the wound solar wing through two pressing mechanisms to ensure that the solar wing will not be scattered due to vibration after the spacecraft is launched.

[0015] 2. The present invention can automatically switch the control rod to the inner rod of the solar wing by driving the motor after unlocking the driving clamping device, and can realize the deployment and folding of the solar wing by cooperating with the deployment mechanism.

[0016] 3. The present invention combines the pressing mechanism with the unfolding and folding mechanism, thereby reducing the complexity of the overall structure of the solar wing and making the structure compact, thereby reducing the control cost and launch cost of the solar wing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall mechanism structure from the first perspective provided by the present invention.

[0018] Figure 2This is a schematic diagram of the overall mechanism structure from a second perspective provided by the present invention.

[0019] Figure 3 This is a schematic diagram of the overall mechanism structure from a third perspective provided by the present invention.

[0020] Figure 4 This is a schematic structural diagram of the pressing mechanism provided by the present invention.

[0021] Figure 5 This is a side view of the left side clamping mechanism structure provided by the present invention.

[0022] Figure 6 This is a schematic diagram of the transmission structure of the pressing mechanism provided by the present invention.

[0023] Figure 7 This is a schematic diagram of the structure of the pressing member provided by the present invention from a first viewing angle.

[0024] Figure 8 This is a schematic diagram of the structure of the pressing member provided by the present invention from a second viewing angle.

[0025] Figure 9 This is a schematic diagram of the solar wing structure provided by the present invention.

[0026] Figure 10 Schematic diagram of the explosion of the internal structure of the solar wing provided by the present invention.

[0027] Figure 11 This is a cross-sectional view of the solar wing mounting rod structure provided by the present invention.

[0028] Description of reference numerals:

[0029] In the figure, 100, base plate; 110, scissor mechanism; 120, power box; 130, unfolding plate; 140, guide plate; 141, guide rod; 200, clamping mechanism; 201, control slot; 202, passing slot; 203, driving gear; 204, first limiting slot; 205, control gear; 206, rotating rod; 210, driving motor; 220, clamping member; 221, sliding member; 222, telescopic member; 223, mounting slot; 300, solar wing; 310, mounting rod; 311, accommodating portion; 312, partition portion; 313, second limiting slot; 320, control rod; 321, first limiting member; 322, second limiting member; 330, driving rod. DETAILED DESCRIPTION

[0030] Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention can be implemented in various forms, and therefore the present invention is not limited to the embodiments described below. In addition, in order to more clearly describe the present invention, components that are not related to the present invention will be omitted from the drawings.

[0031] like Figure 1-3 As shown, a winding solar wing pressing mechanism includes: a base plate 100, a pressing mechanism 200, and a solar wing 300;

[0032] The base plate 100 is located at the lower end of the overall structure and is connected to the main body of the spacecraft;

[0033] The left and right sides of the upper end of the substrate 100 are both provided with a pressing mechanism 200;

[0034] The solar wings 300 are installed between the pressing mechanisms 200;

[0035] like Figure 1-4 As shown, a scissor mechanism 110 is installed at the lower end of the base plate 100, and the scissor mechanism 110 is driven to unfold by a power box 120 located at its rear end;

[0036] The power box 120 is fixedly arranged at the lower end of the base plate 100;

[0037] The front end of the scissor mechanism 110 is fixedly connected to an expansion plate 130 , that is, when the scissor mechanism 110 is expanded, the expansion plate 130 moves forward horizontally;

[0038] The base plate 100 is fixed with guide plates 140 at both ends of the front upper end, and two guide rods 141 located in the same vertical direction are rotatably mounted between the two guide plates 140;

[0039] The two guide rods 141 are for the solar wings 300 to pass through;

[0040] like Figure 1-6 As shown, the two pressing mechanisms 200 are fixedly arranged on the left and right sides of the upper end of the base plate 100;

[0041] A through slot 202 is provided at the center of the pressing mechanism 200;

[0042] The pressing mechanism 200 is provided with control grooves 201 evenly distributed around its edges.

[0043] The control groove 201 extends in an oblique direction away from the through groove 202, and the vertical cross-sectional area of ​​the control groove 201 gradually increases from right to left;

[0044] A driving gear 203 is rotatably mounted at the center of the pressing mechanism 200, and a through hole is provided at the center of the driving gear 203;

[0045] The outer circumference of the driving gear 203 is evenly distributed with four first limiting grooves 204;

[0046] Four control gears 205 are evenly distributed around the driving gear 203, and the four control gears 205 can be rotatably mounted on the pressing mechanism 200;

[0047] The right ends of the four control gears 205 are fixed with rotating rods 206, and the outer circumferences of the four rotating rods 206 are all provided with thread grooves;

[0048] A driving motor 210 is fixedly installed at the center of the left end of the pressing mechanism 200 located at the left end of the entire mechanism;

[0049] like Figure 4-8 As shown, four evenly arranged pressing members 220 are installed on the right side of the pressing mechanism 200 at the left end;

[0050] The lower surface of the right end of the pressing member 220 can be in contact with the solar wing 300 in the folded state;

[0051] A sliding member 221 is fixedly provided at the left end of the pressing member 220, and the sliding member 221 can be slidably installed in the control groove 201;

[0052] The pressing member 220 is telescopically mounted on one side thereof facing the center, and the telescopic member 222 can be mounted on the rotating rod 206 through a mounting slot 223 provided at the center thereof;

[0053] The inner side of the mounting groove 223 is provided with a thread and can be matched with the thread on the outer side of the rotating rod 206;

[0054] like Figure 2 、 Figure 6 、 Figure 9-11 As shown, the solar wing 300 is composed of a flexible solar cell blanket, one end of which is fixedly connected to the mounting rod 310 and wound around the mounting rod 310, and the other end passes between the two guide rods 141 and is fixedly connected to the rear end of the deployment plate 130;

[0055] The mounting rod 310 has a receiving portion 311 at both ends thereof;

[0056] A partition portion 312 is provided at the middle end of the mounting rod 310 to separate the two receiving portions 311;

[0057] The partition portion 312 is evenly distributed with second limiting grooves 313 around it;

[0058] A control rod 320 can be slidably installed inside the two accommodating portions 311, and a thread groove is provided on the inner side of the control rod 320;

[0059] The ends of the two control rods 320 that are away from each other are both fixedly arranged and evenly distributed with first limiting members 321;

[0060] The first limiting member 321 corresponds to the first limiting groove 204 and can be inserted into the first limiting groove 204;

[0061] The two control rods 320 are fixedly provided with second limiting members 322 at their ends close to each other and evenly distributed thereon;

[0062] The second limiting member 322 corresponds to the second limiting groove 313 and can be inserted into the second limiting groove 313;

[0063] A driving rod 330 is installed inside the two control rods 320, and threads in opposite directions are provided on the outer sides of both ends of the driving rod 330, which can cooperate with the thread grooves inside the two control rods 320 with a large torque;

[0064] The left end of the driving rod 330 passes through the slot 202 and is fixedly connected to the output end of the driving motor 210;

[0065] The right end of the driving rod 330 passes through the driving gear 203 in the pressing mechanism 200 located at the right end of the overall mechanism, and there is no contact between the driving rod 330 and the through slot 202;

[0066] Working principle:

[0067] When the solar wing is in the folded state: the drive motor 210 is used to control the drive rod 330 to lock the shaft, and the scissors mechanism 110 is folded. At this time, the first limit members 321 on the two control rods 320 are both located in the first limit grooves 204 of their corresponding drive gears 203 to ensure the status of the two drive gears 203. At the same time, the sliding members 221 on the two sets of clamping members 220 at both ends of the overall mechanism are both located in their corresponding control grooves 201 close to the drive gears 203 to perform all-round compression on both ends of the solar wing 300, thereby preventing the solar wing 300 from being scattered or damaged due to vibration during spacecraft launch.

[0068] When the solar wing needs to be unfolded: the driving motor 210 is used to control the driving rod 330 to rotate in the direction of the solar wing 300 being retracted. The driving rod 330 passes through the first limit piece 321 at the end, thereby driving the two sets of driving gears 203 to rotate, and driving the control gears 205 around it to rotate, so that the rotating rod 206 cooperates with the thread of the mounting groove 223 to make the telescopic part 222 move away from the solar wing 300. At the same time, due to the cooperation between the sliding part 221 on the pressing part 220 and the control groove 201, the pressing part 220 moves along the control groove 201, thereby unlocking the solar wing 300, until the pressing part 220 is engaged with the pressing mechanism 200, the driving gear 203 cannot rotate, and the driving rod 330 continues to be controlled to rotate in the direction of the solar wing 300 being retracted. By cooperating with the outer thread of the driving rod 330 and the inner thread groove of the two groups of control rods 320, the two groups of control rods 320 are moved toward the partition part 312 of the solar wing 300 until the second limit members 322 on the two groups of control rods 320 are both located in the second limit groove 313, and the first limit members 321 on the two groups of control rods 320 are both disengaged from the first limit groove 204, the driving rod 330 stops rotating, and then the driving motor 210 controls the driving rod 330 to rotate in the direction of unfolding the solar wing 300, so as to drive the mounting rod 310 to rotate, thereby controlling the rotation of the solar wing 300 to provide a solar cell blanket, and at the same time, the scissor mechanism 110 is driven to unfold through the power box 120, thereby driving the unfolding plate 130 to move toward the front end until the solar wing 300 is fully unfolded.

[0069] When the solar wing needs to be folded: the driving motor 210 controls the driving rod 330 to rotate in the folding direction of the solar wing 300, and at the same time the power box 120 drives the scissors mechanism 110 to fold, thereby driving the unfolding plate 130 to move toward the rear end until the solar wing 300 is completely folded.

Claims

1. A roll-up solar wing pressing mechanism, comprising a base plate (100), a pressing mechanism (200), and a solar wing (300), wherein the base plate (100) is located at the lower end of the entire mechanism and is connected to a spacecraft body, and is characterized in that: The upper and left sides of the substrate (100) are both provided with a pressing mechanism (200), a solar wing (300) is installed between the pressing mechanisms (200), a scissor mechanism (110) is installed at the lower end of the substrate (100) for driving the solar wing (300) to extend, the pressing mechanism (200) can clamp and limit the two ends of the solar wing (300), the solar wing (300) is composed of a flexible solar cell blanket, and one end of the solar wing is fixedly connected to the mounting rod (310) and is wound around the mounting rod (310), and the mounting rod (310) is provided with a receiving portion (311) at both ends, and a control device (311) can be slidably installed inside the receiving portion (311). The rod (320) is provided with a partition portion (312) at the middle end of the interior of the mounting rod (310) to separate the two accommodating portions (311), and second limiting grooves (313) are evenly distributed around the partition portion (312). The driving rod (330) is connected to the interior of the control rod (320) through a thread, and the ends of the control rods (320) that are away from each other are fixedly provided with a first limiting piece (321) that cooperates with the pressing mechanism (200) to limit the position, and the ends of the control rods (320) that are close to each other are fixedly provided with a second limiting piece (322) that is adapted to the second limiting groove (313), so that the control rod can switch the control of the mounting rod (310); The clamping mechanism (200) is evenly provided with control grooves (201) at the edges around it, and a through groove (202) is provided at the center of the clamping mechanism (200). The control groove (201) extends in an inclined direction away from the through groove (202), and the vertical cross-sectional area of ​​the control groove (201) gradually increases from right to left. A driving gear (203) is rotatably mounted at the center of the clamping mechanism (200) and located at the through groove (202), and a through hole adapted to the through groove (202) is provided at the center of the driving gear (203). Four first limiting grooves (204) are evenly distributed on the periphery of the driving gear (203), and the first limiting member (321) is adapted to the first limiting groove (204). Four control gears (205) are evenly distributed around the driving gear (203), and the four control gears (205) can be rotatably mounted on the pressing mechanism (200). A rotating rod (206) is fixedly provided at the right end of each control gear (205), and a threaded groove is provided on the periphery of each of the four rotating rods (206), and the rotating rods (206) are threadedly connected to the pressing member (220).

2. The winding solar wing pressing mechanism according to claim 1, characterized in that: A sliding member (221) is fixedly provided at the left end of the pressing member (220), and the sliding member (221) can be slidably installed in the control groove (201). A telescopic member (222) is telescopically installed on one side of the pressing member (220) toward the center, and the telescopic member (222) can be installed on the rotating rod (206) through a mounting groove (223) opened at the center thereof, and a thread is provided on the inner side of the mounting groove (223).

3. The winding solar wing pressing mechanism according to claim 1, characterized in that: The scissor mechanism (110) is driven to unfold by a power box (120) located at the rear end thereof, and the power box (120) is fixedly arranged at the lower end of the base plate (100).

4. The winding solar wing pressing mechanism according to claim 1, characterized in that: The left end of the driving rod (330) passes through the through slot (202) and is fixedly connected to the output end of the driving motor (210), and the right end of the driving rod (330) passes through the driving gear (203) located at the right end, and the driving rod (330) does not contact the through slot (202).

5. The winding solar wing pressing mechanism according to claim 1, characterized in that: Guide plates (140) are fixedly provided at both ends of the front side of the upper end of the base plate (100), and two guide rods (141) located in the same vertical direction are rotatably installed between the two guide plates (140), and the solar wing (300) can pass between the two guide rods (141).

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