A fixing structure for a drum and a solar wing

Abstract

The present invention belongs to the field of spacecraft technology, and discloses a fixed structure for a roller and a solar wing. The fixed structure for the roller includes a fixed component and at least four inclined support components. The present invention provides an inclined support component on both sides of the fixed component, so that during the test or transportation process, at least one fixed component and two inclined support components are used to bear the weight of the roller at either end of the roller, thereby preventing structural damage. In addition, each fixed component fixes or releases the roller in the vertical direction, so that during the test or transportation process, the force-bearing direction of the fixed component is perpendicular to the ground, thereby not applying a tangential component to the fixed component, and improving the structural strength. The solar wing including the above-mentioned fixed structure for the roller has high structural strength and good reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of spacecraft, and in particular to a fixing structure for a roller and a solar wing. Background Art

[0002] During long-term in-orbit operations, spacecraft rely primarily on solar panels to provide electrical energy. During launch, the panels are stowed to minimize their footprint. Once in orbit, they deploy to generate electricity.

[0003] Traditional flexible solar wings generally include a roller, a curling arm, a damping structure and a fixing structure. The curling arm is wound on the roller and provides power, and can be unfolded under the action of the damping structure. The fixing structure is used to fix the roller after the curling arm is unfolded or to fix the roller after the curling arm is wound around the roller to prevent the roller from damaging itself or adjacent structures when the curling arm is unfolded in a non-working state.

[0004] However, traditional flexible solar wings have only a single fixed structure at each end of the drum. This means that during testing or transportation, the fixed structure must bear the entire drum's weight, which can easily cause structural damage. Furthermore, if the fixed structure's load-bearing direction is not perpendicular to the ground during testing or transportation, a tangential force component will be applied to the fixed structure, causing other associated structures to bear the load, affecting the structural strength.

[0005] Therefore, the above problems need to be solved urgently. Summary of the Invention

[0006] The object of the present invention is to provide a fixing structure for a drum and a solar wing to improve the structural strength.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A roller fixing structure is used to fix and release the roller, and the roller fixing structure includes:

[0009] A fixing assembly, at least one fixing assembly is provided at each end of the drum, and each fixing assembly is configured to fix or release the drum and its corresponding end in a vertical direction;

[0010] At least four inclined support assemblies, each two of the inclined support assemblies are arranged corresponding to one fixed assembly, and the two inclined support assemblies are respectively arranged on both sides of the fixed assembly along the radial direction of the roller. The inclined support assemblies are configured to support the roller in a fixed state and apply thrust to the roller when the fixed assembly releases the roller.

[0011] Preferably, the roller fixing structure further comprises a support frame, the support frame comprises at least two branch arms, each of the branch arms is equipped with at least one inclined support assembly, and the fixing assembly is arranged between the two branch arms.

[0012] Preferably, the inclined support assembly includes a support block, a support pin and an elastic telescopic member, the support block is arranged on the branch arm, the support block is used to support the roller, the support pin is slidably arranged on the support block, and the elastic telescopic member is used to push the support pin so that the support pin can abut and push the roller.

[0013] Preferably, the support block includes a sliding groove, and the support pin is slidably disposed in the sliding groove and can partially extend out of the sliding groove;

[0014] The elastic telescopic member is disposed in the sliding groove, and one end of the elastic telescopic member is connected to the bottom wall of the sliding groove, and the other end is connected to the supporting pin.

[0015] Preferably, the inclined plane support assembly further comprises a guide member arranged in the sliding groove, the elastic telescopic member is a telescopic spring, and the telescopic spring is slidingly sleeved on the guide member.

[0016] Preferably, the support block includes a matching surface that is shaped like the roller, and the support block supports the roller via the matching surface.

[0017] Preferably, the fixing assembly includes a fixing member and a fixing seat that can be adapted to be snap-fitted, the fixing member is provided on one of the roller and the support frame, and the fixing seat is provided on the other of the roller and the support frame.

[0018] Preferably, the fixing member includes a fixing portion and a connecting portion which are connected as one body, a mounting hole is provided on the drum, the connecting portion is fixedly connected to the inner side of the drum, and the fixing portion passes through the mounting hole.

[0019] Preferably, the fixing seat includes an annular groove, and the fixing portion can be embedded in the annular groove.

[0020] A solar wing comprises a roller and the above-mentioned roller fixing structure, wherein the roller fixing structure is used for fixing and releasing the roller.

[0021] Beneficial effects of the present invention:

[0022] 1. By installing an inclined support assembly on either side of the fixing assembly, the present invention ensures that during testing or transportation, the weight of the roller is shared by at least one fixing assembly and two inclined support assemblies at either end, thus minimizing structural damage. Furthermore, each fixing assembly secures or releases the roller vertically, ensuring that during testing or transportation, the force bearing direction of the fixing assembly is perpendicular to the ground, eliminating any tangential force component on the fixing assembly and improving structural strength.

[0023] 2. The solar wing structure including the above-mentioned roller fixing structure has high structural strength and good reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the fixing structure for the roller provided by the present invention;

[0025] Figure 2 It is a structural schematic diagram of the support frame provided by the present invention;

[0026] Figure 3 It is a structural schematic diagram of the inclined plane support assembly provided by the present invention;

[0027] Figure 4 is a cross-sectional view of the inclined support assembly provided by the present invention;

[0028] Figure 5 It is a structural schematic diagram of the fixing assembly provided by the present invention;

[0029] Figure 6 It is a structural schematic diagram of the fixing seat provided by the present invention.

[0030] In the picture:

[0031] 100, roller;

[0032] 1. Fixing assembly; 11. Fixing member; 111. Fixing portion; 112. Connecting portion; 12. Fixing seat; 121. Annular groove;

[0033] 2. Inclined support assembly; 21. Support block; 211. Sliding groove; 212. Mating surface; 22. Support pin; 23. Elastic expansion member; 24. Guide member;

[0034] 3. Support frame; 31. Branch arm. DETAILED DESCRIPTION

[0035] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0036] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0037] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump can represent three situations: the existence of a centrifugal vortex magnetic pump alone, the existence of a centrifugal vortex magnetic pump and a centrifugal vortex magnetic pump at the same time, and the existence of a centrifugal vortex magnetic pump alone. In addition, the character " / " in this application generally indicates that the related objects are in an "and / or" relationship.

[0038] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0039] In this application, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. associated with a specific value. Such terms should also be considered to disclose a range defined by the absolute values of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values that do not use relative terms should also be disclosed as specific values with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0040] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0041] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0042] See also Figures 1 to 6 , this embodiment provides a fixing structure for a roller. The fixing structure for a roller is used to fix and release the roller 100, and includes a fixing component 1 and at least four inclined support components 2. Among them, at least one fixing component 1 is provided at both ends of the roller 100, and each fixing component 1 is configured to fix or release the roller 100 and its corresponding end in the vertical direction. Every two inclined support components 2 are provided corresponding to one fixing component 1, and the two inclined support components 2 are respectively provided on both sides of the fixing component 1 along the radial direction of the roller 100. The inclined support components 2 are configured to support the roller 100 in a fixed state and apply thrust to the roller 100 when the fixing component 1 releases the roller 100. In this embodiment, there are two fixing components 1, and four inclined support components 2 are correspondingly provided, and the two fixing components 1 are respectively provided corresponding to the two ends of the roller 100, which will not be described in detail.

[0043] It is understood that an inclined support assembly 2 is provided on either side of the fixing assembly 1. This ensures that during testing or transportation, the weight of the drum 100 is shared by at least one fixing assembly 1 and two inclined support assemblies 2 at either end of the drum 100, thereby reducing the risk of structural damage. Furthermore, each fixing assembly 1 secures or releases the drum 100 vertically, ensuring that during testing or transportation, the force bearing direction of the fixing assembly 1 is perpendicular to the ground, eliminating any tangential force component applied to the fixing assembly 1 and improving structural strength.

[0044] It should be noted that, under conventional and simplified working conditions, a fixing component 1 is provided at each end of the drum 100 to meet the locking requirements at both ends; when the structural size of the drum 100 is larger or the load-bearing requirements are higher, corresponding ends can be added or additional fixing components 1 can be added in the middle position. This embodiment does not impose specific restrictions and requirements on this.

[0045] In order to further enhance the structural strength of the fixed structure for the roller, the fixed structure for the roller further includes a support frame 3, which includes at least two branch arms 31, each branch arm 31 being equipped with at least one inclined support assembly 2, and the fixed assembly 1 being arranged between the two branch arms 31. In this manner, one fixed assembly 1 and two inclined support assemblies 2 are connected into one through the support frame 3, which can make the relationship between the three more stable. It should be noted that in this embodiment, the support frame 3 is arranged on the solar wing substrate, and two support frames 3 are correspondingly arranged. It should also be noted that an inclined support assembly 2 is arranged on each side of each fixed assembly 1 to achieve a paired arrangement; accordingly, additional arrangements can be made as needed, but at least four inclined support assemblies 2 are required to ensure the reliability of the support at both ends of the roller 100 and the stability of the separation thrust. In other embodiments, it can also be set to six or eight, and so on.

[0046] Specifically, the inclined support assembly 2 includes a support block 21, a support pin 22 and an elastic telescopic member 23. The support block 21 is arranged on the branch arm 31. The support block 21 is used to support the roller 100. The support pin 22 is slidably arranged on the support block 21. The elastic telescopic member 23 is used to push the support pin 22 so that the support pin 22 can abut and push the roller 100.

[0047] With this arrangement, when the fixed assembly 1 fixes the roller 100, the support block 21 supports the roller 100, and at the same time, the elastic member 23 is compressed. Conversely, when the fixed assembly 1 releases the roller 100, the elastic member 23 releases its elastic force, pushing the support pin 22 to slide, and then the support pin 22 pushes the roller 100 to separate from the fixed assembly 1. It is understandable that when the fixed assembly 1 releases the roller 100, the support pin 22 pushes the roller 100, which can ensure that the fixed assembly 1 and the roller 100 are smoothly separated. In addition, when the support pin 22 pushes the roller 100 to achieve separation, compared to other possible separation methods, this pushing action can make the relative movement between the fixed assembly 1 and the roller 100 smoother. During the separation process, they will not cause excessive wear due to pulling or scraping against each other. For example, if separation is carried out by forcibly pulling away, it may cause scratches, deformation, and other damage to the contact surface of the fixed assembly 1 and the roller 100. However, the pushing method of the support pin 22 can effectively avoid this situation and extend the service life of the components. Furthermore, the push of the support pins 22 ensures that the drum 100 is subjected to a more uniform force during the separation process. Compared to uneven force distribution, uniform force distribution can prevent local damage to the drum 100 due to excessive force. For example, if a certain part of the drum 100 is suddenly subjected to a large tensile force during separation, it may cause the drum 100 shell to crack or the internal structure to deform. The uniform push of the support pins 22 can prevent this from happening.

[0048] Specifically, the support block 21 includes a sliding groove 211, within which the support pin 22 is slidably disposed and partially extends. An elastic member 23 is disposed within the sliding groove 211, with one end of the elastic member 23 connected to the bottom wall of the sliding groove 211 and the other end connected to the support pin 22. It will be appreciated that the slidable positioning of the support pin 22 within the sliding groove 211 allows for smoother sliding of the support pin 22, a simple structure, and low cost.

[0049] In this embodiment, the inclined support assembly 2 further includes a guide member 24 disposed within the sliding groove 211. The elastic telescopic member 23 is a telescopic spring that is slidably sleeved within the guide member 24. It is understood that during operation, the telescopic spring is susceptible to interference from various external forces, causing it to deflect or twist. The presence of the guide member 24 restricts the movement of the telescopic spring, allowing it to extend and retract only along the axial direction of the guide member 24. This allows the guide member 24 to guide the telescopic spring's extension and retraction, enabling the telescopic spring to more stably drive the support pin 22. It should be noted that there are no specific requirements or restrictions regarding the specific model of the telescopic spring.

[0050] To enhance stability during rolling support, the support block 21 includes a mating surface 212 that mirrors the roller 100. This configuration allows the support block 21 to support the roller 100 via the mating surface 212. This increases the contact area between the support block 21 and the roller 100. When bearing the weight of the roller 100 and external forces, the larger contact area allows the supporting force to be evenly distributed across the mating surface 212. For example, for heavier rollers, the larger contact area can prevent excessive localized pressure and deformation or denting of the roller 100 due to uneven localized forces, thereby ensuring the stability of the roller 100 during support. Furthermore, this conformal fit allows the roller 100 to better adapt to various external forces during operation. Whether it's centrifugal force and axial force generated by the rotation of the roller 100 itself, or vibration and impact forces transmitted by external equipment, the mating surface 212 effectively resists these external forces, maintaining the stability of the roller 100.

[0051] Specifically, the fixing assembly 1 includes a fixing member 11 and a fixing seat 12 that can be adapted to engage with each other. The fixing member 11 is provided on one of the drum 100 and the support frame 3, and the fixing seat 12 is provided on the other of the drum 100 and the support frame 3. It can be understood that the fixing member 11 and the fixing seat 12 are used to fix or release the drum 100, which is simple in structure and easy to operate.

[0052] It should be noted that in this embodiment, the fixing member 11 is disposed on the drum 100, and the fixing base 12 is disposed on the support frame 3. Furthermore, the fixing member 11 includes an integral fixing portion 111 and a connecting portion 112. The drum 100 is provided with a mounting hole, and the connecting portion 112 is fixedly connected to the inner side of the drum 100, with the fixing portion 111 passing through the mounting hole. This arrangement secures the connecting portion 112 to the inner side of the drum 100, providing a more secure connection. The connecting portion 112 is preferably screwed to the drum 100, which will not be described in detail.

[0053] To ensure a more secure connection between the fixing member 11 and the fixing groove, the fixing base 12 includes an annular groove 121 into which the fixing portion 111 fits. Accordingly, the fixing member 11 is shaped like a hollow rod. During connection, the fixing member 11 fits into the annular groove 121, with the interior of the fixing member 11 filling the space between the annular groove 121, preventing any looseness and ensuring a more secure connection.

[0054] This embodiment further provides a solar wing comprising a roller 100 and the aforementioned roller fixing structure, which is used to fix and release the roller 100. It is understood that the solar wing comprising the aforementioned roller fixing structure has high structural strength and good reliability.

[0055] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A roller fixing structure for fixing and releasing a roller (100), characterized in that: The fixing structure for the drum includes: A fixing assembly (1), wherein at least one fixing assembly (1) is provided at each end of the drum (100), and each fixing assembly (1) is configured to fix or release the drum (100) and its corresponding end in a vertical direction; At least four inclined support assemblies (2), each two of the inclined support assemblies (2) are arranged corresponding to one fixed assembly (1), and the two inclined support assemblies (2) are respectively arranged on both sides of the fixed assembly (1) along the radial direction of the roller (100), and the inclined support assemblies (2) are configured to support the roller (100) in a fixed state and apply a thrust to the roller (100) when the fixed assembly (1) releases the roller (100).

2. A fixing structure for a drum according to claim 1, characterized in that: The roller fixing structure further comprises a support frame (3), the support frame (3) comprising at least two branch arms (31), each branch arm (31) being equipped with at least one inclined support assembly (2), and the fixing assembly (1) being arranged between the two branch arms (31).

3. A fixing structure for a drum according to claim 2, characterized in that: The inclined support assembly (2) comprises a support block (21), a support pin (22) and an elastic telescopic member (23); the support block (21) is arranged on the branch arm (31); the support block (21) is used to support the roller (100); the support pin (22) is slidably arranged on the support block (21); and the elastic telescopic member (23) is used to push the support pin (22) so that the support pin (22) can abut against and push the roller (100).

4. A fixing structure for a drum according to claim 3, characterized in that: The support block (21) comprises a sliding groove (211), and the support pin (22) is slidingly arranged in the sliding groove (211) and can partially extend out of the sliding groove (211); The elastic telescopic member (23) is arranged in the sliding groove (211), and one end of the elastic telescopic member (23) is connected to the bottom wall of the sliding groove (211), and the other end is connected to the support pin (22).

5. The fixing structure for a drum according to claim 4, characterized in that: The inclined plane support assembly (2) further comprises a guide member (24) arranged in the sliding groove (211); the elastic telescopic member (23) is a telescopic spring, and the telescopic spring is slidingly sleeved on the guide member (24).

6. The fixing structure for a drum according to claim 4, characterized in that: The support block (21) comprises a matching surface (212) that is shaped like the roller (100), and the support block (21) supports the roller (100) via the matching surface (212).

7. The fixing structure for a drum according to claim 3, characterized in that: The fixing assembly (1) comprises a fixing member (11) and a fixing seat (12) that can be adapted to be snap-connected. The fixing member (11) is arranged on one of the roller (100) and the support frame (3), and the fixing seat (12) is arranged on the other of the roller (100) and the support frame (3).

8. The fixing structure for a drum according to claim 7, characterized in that: The fixing member (11) comprises a fixing portion (111) and a connecting portion (112) connected in one piece. A mounting hole is provided on the drum (100). The connecting portion (112) is fixedly connected to the inner side of the drum (100), and the fixing portion (111) passes through the mounting hole.

9. The fixing structure for a drum according to claim 8, characterized in that: The fixing seat (12) comprises an annular groove (121), and the fixing portion (111) can be embedded in the annular groove (121).

10. A solar wing, characterized in that: The solar wing comprises a roller (100) and a roller fixing structure according to any one of claims 1 to 9, wherein the roller fixing structure is used for fixing and releasing the roller (100).

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