Fixing structure for roller and solar wing

Abstract

The invention belongs to the technical field of spacecrafts, and discloses a fixing structure for a roller and a solar wing. The fixing structure for the roller comprises a fixing assembly and at least four slope supporting assemblies. The two sides of the fixing assembly are each provided with one slope supporting assembly, so that in the testing or transporting process, at least one fixing assembly and the two slope supporting assemblies jointly bear the gravity of the roller at any end of the roller, and then structural damage is not likely to be caused. Besides, each fixing assembly fixes or releases the roller in the vertical direction, so that the force bearing direction of the fixing assemblies is perpendicular to the ground in the experiment or transportation process, no tangential component force is applied to the fixing assemblies, and the structural strength can be improved. Comprising the fixing structure for the roller is high in structural strength and good in 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 the long-term operation of a spacecraft in orbit, the solar panels are mainly used to provide power for the spacecraft. When the spacecraft is launched, the solar panels are folded to reduce the volume they occupy. After the spacecraft enters orbit, the solar panels are unfolded to generate electricity.

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

[0004] However, the traditional flexible solar wing has only a single fixed structure at both ends of the drum, so that during the test or transportation process, the fixed structure needs to bear the weight of the entire drum, which is easy to cause structural damage. In addition, if the bearing direction of the fixed structure is not perpendicular to the ground during the test or transportation, a tangential component force will be applied to the fixed structure, which will cause other related structures to bear the force, 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 comprises:

[0009] A fixing assembly, at least one fixing assembly is disposed 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 plane support assemblies, each two of the inclined plane support assemblies are arranged corresponding to one of the fixed assemblies, and the two inclined plane support assemblies are respectively arranged on both sides of the fixed assembly along the radial direction of the roller, and the inclined plane 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 fixing structure for the drum further comprises a support frame, the support frame comprises at least two branch arms, at least one inclined support assembly is mounted on each branch arm, 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 comprises 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 arranged 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 of the elastic telescopic member 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 comprises a matching surface which is shaped like the roller, and the support block supports the roller via the matching surface.

[0017] Preferably, the fixing assembly comprises a fixing member and a fixing seat which can be adapted to be snap-fitted with each other, the fixing member is arranged on one of the roller and the supporting frame, and the fixing seat is arranged on the other of the roller and the supporting frame.

[0018] Preferably, the fixing member comprises a fixing portion and a connecting portion which are connected in one piece, 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 comprises an annular groove, and the fixing portion can be embedded in the annular groove.

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

[0021] Beneficial effects of the present invention:

[0022] 1. The present invention provides an inclined support assembly on both sides of the fixing assembly, so that during the test or transportation process, at least one fixing assembly and two inclined support assemblies are used to bear the weight of the drum at any end of the drum, thereby preventing the structure from being damaged. In addition, each fixing assembly fixes or releases the drum in the vertical direction, so that during the test or transportation process, the bearing direction of the fixing assembly is perpendicular to the ground, thereby preventing a tangential force from being applied to the fixing assembly, thereby improving the 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 a fixing structure for a 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 is a schematic structural diagram of the inclined support assembly provided by the present invention;

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

[0028] Figure 5 is a schematic diagram of the structure 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 figure:

[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. Matching surface; 22. Support pin; 23. Elastic telescopic member; 24. Guide member;

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

[0035] Before any embodiments of the 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 above drawings.

[0036] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0037] In the present application, the term "and / or" is a description of the association relationship of associated objects, indicating that three relationships may exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump can represent: 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 the present application generally indicates that the objects associated before and after are in an "and / or" relationship.

[0038] In the present 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, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0039] In the present application, it will be understood by those of ordinary skill 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 tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. 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 a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, 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 another element "upper" or "lower", but also indirectly connected to another 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, the bottom 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 corresponding to its 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 a thrust to the roller 100 when the fixing component 1 releases the roller 100. In this embodiment, two fixing components 1 are provided, 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 understandable that an inclined support assembly 2 is provided on both sides of the fixing assembly 1, so that during the test or transportation process, at least one fixing assembly 1 and two inclined support assemblies 2 are used to bear the weight of the roller 100 at any end of the roller 100, so that it is not easy to cause structural damage. In addition, each fixing assembly 1 fixes or releases the roller 100 in the vertical direction, so that during the test or transportation process, the force bearing direction of the fixing assembly 1 is perpendicular to the ground, so that a tangential component force is not applied to the fixing assembly 1, which can improve the 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 dimensions of the drum 100 are larger or the load-bearing requirements are higher, corresponding ends may be added or additional fixing components 1 may be added in the middle position, and 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 drum, the fixed structure for the drum also includes a support frame 3, the support frame 3 includes at least two branch arms 31, each branch arm 31 is equipped with at least one inclined support assembly 2, and the fixed assembly 1 is arranged between the two branch arms 31. In this way, a fixed assembly 1 and two inclined support assemblies 2 are connected into one by the support frame 3, which can make the relationship between the three more stable. It should be noted that in the present 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, it can also be further equipped according to demand, but at least four inclined support assemblies 2 are maintained to ensure the reliability of the support at both ends of the drum 100 and the stability of the separation thrust. In other embodiments, it can also be set to six or eight, etc.

[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, and 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] In this way, when the fixed component 1 fixes the drum 100, the support block 21 supports the drum 100, and at the same time, the elastic telescopic member 23 is compressed. On the contrary, when the fixed component 1 releases the drum 100, the elastic telescopic member 23 releases the elastic force, pushes the support pin 22 to slide, and then the support pin 22 pushes the drum 100 to separate from the fixed component 1. It can be understood that when the fixed component 1 releases the drum 100, the support pin 22 pushes the drum 100, which can ensure that the fixed component 1 and the drum 100 are separated smoothly. In addition, when the drum 100 is pushed by the support pin 22 to achieve separation, compared with other possible separation methods, this pushing action can make the relative movement between the fixed component 1 and the drum 100 more stable. During the separation process, they will not cause excessive wear due to pulling and scratching each other. For example, if the separation is carried out by forcibly pulling away, it may cause scratches, deformation and other damage to the contact surface of the fixed component 1 and the drum 100, and the pushing method of the support pin 22 can effectively avoid this situation and extend the service life of the components. In addition, the push of the support pin 22 can make the drum 100 more evenly stressed during the separation process. Compared with the uneven stress mode, the even stress can prevent the local structure of the drum 100 from being damaged due to excessive stress. For example, if a certain part is suddenly subjected to a large tensile force during separation, the outer shell of the drum 100 may be broken or the internal structure may be deformed, and the even push of the support pin 22 can avoid this situation.

[0048] In particular, the support block 21 includes a sliding groove 211, and the support pin 22 is slidably disposed in the sliding groove 211 and can partially extend out of the sliding groove 211. The elastic telescopic member 23 is disposed 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. It can be understood that the support pin 22 is slidably disposed in the sliding groove 211, which can make the support pin 22 slide more smoothly, and has a simple structure and low use cost.

[0049] In this embodiment, the inclined support assembly 2 also includes a guide 24 disposed in the sliding groove 211, and the elastic telescopic member 23 is a telescopic spring, and the telescopic spring is slidably sleeved on the guide 24. It is understandable that during operation, the telescopic spring is easily disturbed by various external forces and deflected or twisted. The existence of the guide 24 can limit the movement direction of the telescopic spring so that it can only be telescoped along the axial direction of the guide 24, thereby guiding the telescopic spring to telescope through the guide 24, so that the telescopic spring can drive the support pin 22 more stably. It should be noted that there are no specific requirements and restrictions on the specific model of the telescopic spring.

[0050] In order to improve the stability of the support when rolling, the support block 21 includes a matching surface 212 that is similar to the roller 100, and the support block 21 supports the roller 100 through the matching surface 212. In this way, the support block 21 supports the roller through the matching surface 212 that is similar to the roller 100, which can increase the contact area between the two. When bearing the weight and external force of the roller 100, the larger contact area allows the supporting force to be evenly distributed on the matching surface 212. For example, for a heavier roller, a larger contact area can avoid excessive local pressure and prevent the roller 100 from being deformed or sunken due to uneven local force, thereby ensuring the stability of the roller 100 during the support process. In addition, the matching mode of matching can better adapt to the various external forces that the roller 100 is subjected to during the working process. Whether it is the centrifugal force and axial force generated by the rotation of the roller 100 itself, or the vibration and impact force transmitted by the external equipment, the matching surface 212 can effectively resist these external forces and keep the roller 100 stable.

[0051] Specifically, the fixing assembly 1 includes a fixing member 11 and a fixing seat 12 that can be adapted to be clamped, the fixing member 11 is arranged on one of the drum 100 and the support frame 3, and the fixing seat 12 is arranged on the other of the drum 100 and the support frame 3. It can be understood that the clamping structure composed of the fixing member 11 and the fixing seat 12 is used to fix or release the drum 100, which has a simple structure and is easy to operate.

[0052] It should be noted that, in this embodiment, the fixing member 11 is arranged on the drum 100, and the fixing seat 12 is arranged on the support frame 3. Further, the fixing member 11 includes a fixing portion 111 and a connecting portion 112 which are connected as one body, and a mounting hole is arranged on the drum 100, and 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. In this way, the connecting portion 112 is fixedly connected to the inner side of the drum 100, and the connection is more reliable. The connection mode of the connecting portion 112 and the drum 100 is preferably screwed, which will not be described in detail.

[0053] In order to make the fixing member 11 and the fixing groove more firmly connected to the ground, the fixing seat 12 includes an annular groove 121, and the fixing portion 111 can be embedded in the annular groove 121. Correspondingly, the fixing member 11 is arranged in a hollow round rod shape. When connected, the fixing member 11 is embedded in the annular groove 121 and the inside and the middle of the annular groove 121 are filled, which is not easy to shake and the ground is more firmly connected.

[0054] This embodiment further provides a solar wing, which includes a roller 100 and the above-mentioned roller fixing structure, which is used to fix and release the roller 100. It can be understood that the solar wing including the above-mentioned roller fixing structure has high structural strength and good reliability.

[0055] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope 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 comprises: 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 of the fixed assemblies (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) comprises at least two branch arms (31), each branch arm (31) is mounted with at least one inclined support assembly (2), and the fixing assembly (1) is arranged between the two branch arms (31).

3. A fixing structure for a drum according to claim 2, characterized in that: The inclined plane 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 supporting pin (22).

5. A 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 slidably sleeved on the guide member (24).

6. A 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. A 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-fitted, wherein 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. A 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) which are 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. A 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 as described in 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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