Controllable ejection equipment of cubesat

Abstract

The invention relates to the technical field of cubesat injection ejection equipment, in particular to cubesat controllable ejection equipment which comprises storage equipment, switching equipment, ejection equipment and extraction equipment, sliding grooves are formed in the two sides of the upper end face of the storage equipment, a rectangular pushing plate is arranged in the storage equipment, a first spring is arranged below the pushing plate, and a second spring is arranged below the first spring. A first driving part is arranged in the storage device, a first driving shaft is arranged at the output end of the first driving part, one end of the first driving shaft is connected with one side of the switching device, a second driving part is arranged in one end of the storage device, a second driving shaft is arranged at the output end of the second driving part, and a connecting plate is arranged on one side of the switching device. After the upper buckle of the extraction equipment loses limitation on the cubesat, the upper buckle still moves inwards by a certain distance, and the situation that release of the cubesat is interfered, and the cubesat is damaged is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of cubic satellite orbit injection ejection devices, and particularly to a controllable ejection device for cubic satellites. Background Art

[0002] Cubic satellites are the main direction of the development of small satellites. The research and development and production costs of cubic satellites are relatively low, generally about several million yuan. Compared with large satellites that cost hundreds of millions or even billions of yuan, they have obvious cost advantages. Despite their small size, cubic satellites can integrate various high-precision and high-performance instruments and equipment to achieve complex functions and tasks.

[0003] The orbit injection ejection device is an important device used to eject cubic satellites from a launch vehicle and send them into a predetermined orbit during the launch process of cubic satellites. It mainly includes aspects such as an ejection mechanism, ejection process control, and ejection safety guarantee.

[0004] Traditional cubic satellite orbit injection ejection devices release cubic satellites in sequence, enabling the cubic satellites to enter the orbit in order. They cannot freely and controllably release cubic satellites at any position. When multiple different types of cubic satellites need to be released, they cannot freely select and release the corresponding types of cubic satellites. They can only be arranged in advance before launch, which will cause a burden on the loading work of cubic satellites.

[0005] Therefore, in view of the above situation, it is necessary to develop a device to meet the current practical applications. Summary of the Invention

[0006] Therefore, the present invention is made in view of the above problems. The purpose of the present invention is to solve the problem that current cubic satellites cannot be controllably released by using a method of grasping cubic satellites at any position by an extraction device and then releasing them. The present invention achieves the above purpose through the following technical solutions:

[0007] A controllable ejection device for a cubic satellite comprises: a storage device, a transfer device, an ejection device, and an extraction device. Sliding grooves are arranged on both sides of the upper end surface of the storage device, a rectangular push plate is arranged inside the storage device, a spring 1 is arranged below the push plate, a driving member 1 is arranged inside the storage device, a driving shaft 1 is arranged at the output end of the driving member 1, one end of the driving shaft 1 is connected to one side of the transfer device, a driving member 2 is arranged inside one end of the storage device, a driving shaft 2 is arranged at the output end of the driving member 2, a connecting plate is arranged on one side of the transfer device, the lower part of the connecting plate is connected to the driving shaft 1, a push block 1 is arranged above the transfer device, a driving member 3 and a release plate are arranged inside the ejection device, an extraction device is arranged inside the ejection device, a sliding block is arranged below the extraction device, a rectangular groove-shaped anti-collision notch is arranged on one side of the extraction device, a "triangle" shaped groove is arranged inside the extraction device, wherein the vertical groove is a lifting groove, and the oblique groove is a control groove, a push block 2 is arranged on one side of the extraction device, and a push block 3 is arranged inside the lower part of the extraction device.

[0008] Preferably, one end of the driving shaft 1 is connected to one side of the adapter device, and one end of the driving shaft 2 is connected to the bottom surface of the ejection device.

[0009] Preferably, the cubic satellite is a square structure, with solar wings provided on both sides of the cubic satellite and a cylindrical partition provided on the upper end of the cubic satellite.

[0010] Preferably, the push block is located inside the hydraulic chamber, the hydraulic chamber is connected to the telescopic tube through a pipeline, the telescopic tube is a hollow tubular structure of the nesting device, the other end of the telescopic tube is connected to the baffle, and one side of the baffle is connected to the interior of the adapter device through an elastic rod.

[0011] Preferably, the driving member three can drive the driving shaft three to perform telescopic movement, and the other end of the driving shaft three is connected to the extraction device.

[0012] Preferably, the release plate is a rectangular shell structure, a spring 2 is arranged at the lower part inside the release plate, a card slot is arranged on the release plate, control rods are arranged on both sides of the release plate, and the control rods can move inside the lifting slot and the control slot.

[0013] Preferably, a card plate is provided inside the ejection device, one end of the card plate is connected to the inside of the ejection device through a second elastic rod, and a push plate is provided at the upper end of the card plate.

[0014] Preferably, the push block 2 is arranged inside the hydraulic chamber 2, the hydraulic chamber 2 is connected to the telescopic tube 2 through a pipeline, the telescopic tube 2 is a hollow tubular structure of the nested device, the other end of the telescopic tube 2 is connected to the baffle 2, and one side of the baffle 2 is connected to the interior of the extraction device through the elastic rod 3.

[0015] Preferably, the pushing block III is arranged inside the hydraulic chamber III. The hydraulic chamber III is connected to the telescopic pipe III through a pipeline. The other end of the telescopic pipe III is connected to the baffle III. There are two groups of baffles III, which are respectively arranged on both sides of the anti-collision notch. The rear of the baffle III is connected to the inner wall of the extraction device through an elastic rod IV.

[0016] Advantages of the present invention:

[0017] 1. The adapter device of the present invention is internally provided with a buckle mechanism, which can fixedly clamp the CubeSat. When the held CubeSat is released, the next CubeSat will be loaded, facilitating subsequent launch work. Multiple CubeSats can be filled inside, increasing the release efficiency of the CubeSat;

[0018] 2. The ejection device of the present invention is internally provided with a release plate, and the release of the CubeSat is completed through the elastic force of the spring below the release plate; the extraction device is arranged inside the ejection device. When the extraction device moves towards this side to extract the CubeSat, during the movement process, the extraction device will squeeze the control rod of the release plate through the internally arranged control groove, causing the release plate to move downward to store energy in the spring. When the extraction device carries the CubeSat back to its original position, the CubeSat is released through the release plate, thus completing the automatic release of the CubeSat;

[0019] 3. After the buckle above the extraction device of the present invention loses the restriction on the CubeSat, it will still move inward a certain distance to prevent interference with the release of the CubeSat and damage to the CubeSat. Description of the drawings

[0020] Figure 1 is the overall schematic diagram of the present invention Figure 1 .

[0021] Figure 2 is the overall schematic diagram of the present invention Figure 2 .

[0022] Figure 3 is Figure 2 the sectional schematic diagram at A - A in Figure 1 .

[0023] Figure 4 is the CubeSat schematic diagram of the present invention.

[0024] Figure 5 is the adapter device schematic diagram of the present invention Figure 1 .

[0025] Figure 6 is the adapter device schematic diagram of the present invention Figure 2 .

[0026] Figure 7 is Figure 6 the sectional schematic diagram at B - B in

[0027] Figure 8 For Figure 2 Schematic view of the A-A section in Figure 2 (Schematic view of the ejection device).

[0028] Figure 9 Schematic view of the release plate of the present invention.

[0029] Figure 10 Schematic view of the clamping plate of the present invention.

[0030] Figure 11 Schematic view of the extraction device of the present invention Figure 1 .

[0031] Figure 12 Schematic view of the extraction device of the present invention Figure 2 .

[0032] Figure 13 For Figure 13 Schematic view of the C-C section in

[0033] Figure 14 For Figure 13 Schematic view of the D-D section in

[0034] Figure 15 For Figure 2 Schematic view of the A-A section in Figure 3 (Status schematic Figure 1 ).

[0035] Figure 16 For Figure 2 Schematic view of the A-A section in Figure 4 (Status schematic Figure 2 ).

[0036] Figure 17 Overall schematic of the present invention Figure 3 .

[0037] Figure 18 For Figure 2 Schematic view of the A-A section in Figure 5 (Status schematic Figure 3 ).

[0038] In the figure, 1 is a storage device; 11 is a push plate; 12 is a first spring; 13 is a first driving member; 14 is a first driving shaft; 15 is a second driving member; 16 is a second driving shaft; 17 is a sliding groove; 2 is a CubeSat; 21 is a partition member; 22 is a solar panel; 3 is an adapter device; 31 is a connecting plate; 32 is a first push block; 321 is a first hydraulic chamber; 322 is a first telescopic tube; 323 is a first baffle; 324 is a first elastic rod; 4 is an ejection device; 41 is a third driving member; 411 is a third driving shaft; 42 is a release plate; 421 is a second spring; 422 is a control rod; 423 is a clamping groove; 43 is a clamping plate; 431 is a second elastic rod; 432 is a pushing plate; 5 is an extraction device; 51 is a sliding block; 52 is an anti-collision notch; 53 is a lifting groove; 54 is a control groove; 55 is a second push block; 551 is a second hydraulic chamber; 552 is a second telescopic tube; 553 is a second baffle; 554 is a third elastic rod; 56 is a third push block; 561 is a third hydraulic chamber; 562 is a third telescopic tube; 563 is a third baffle; 564 is a fourth elastic rod. Detailed implementation manners

[0039] Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those of ordinary skill in the art in the field to which the present invention belongs can easily implement these embodiments; however, the present invention can also be implemented in various different forms, so the present invention is not limited to the embodiments described below; in addition, in order to more clearly describe the present invention, components not connected to the present invention will be omitted from the drawings.

[0040] As Figure 1 shown, a controllable ejection device for a CubeSat is composed of a storage device 1, an adapter device 3, an ejection device 4, and an extraction device 5. The storage device 1 is arranged inside a launch vehicle. The storage device 1 is in a rectangular block structure, and sliding grooves 17 are arranged on both sides of the upper end surface of the storage device 1;

[0041] The adapter device 3 is arranged inside the storage device 1, and the adapter device 3 can store the CubeSat 2;

[0042] One end of the storage device 1 is provided with an ejection device 4, and an extraction device 5 is arranged inside the ejection device 4. The extraction device 5 can extract the CubeSat 2 stored by the adapter device 3 and launch the CubeSat through the ejection device 4;

[0043] As Figure 2 、 Figure 3 shown, a rectangular push plate 11 is arranged inside the storage device 1. A first spring 12 is arranged below the push plate 11. The first spring 12 keeps the push plate 11 moving upward all the time. The upper end surface of the push plate 11 contacts the bottom surface of the CubeSat 2 inside the adapter device 3 and pushes the CubeSat 2 upward;

[0044] The storage device 1 is provided with a driving member 13 inside, and the driving member 13 can drive a driving shaft 14 to perform telescopic movement, and one end of the driving shaft 14 is connected to one side of the adapter device 3. When the driving shaft 14 performs telescopic movement, it will drive the adapter device 3 to perform lifting movement inside the storage device 1;

[0045] A second driving member 15 is disposed inside one end of the storage device 1. The second driving member 15 can drive a second driving shaft 16 to perform telescopic movement. One end of the second driving shaft 16 is connected to the bottom surface of the ejection device 4. When the second driving shaft 16 performs telescopic movement, it drives the ejection device 4 to perform lifting movement at one end of the storage device 1.

[0046] like Figure 4 As shown, the cubic satellite 2 is a square structure, which is a traditional 1U satellite (10cm×10cm×10cm) structure. Solar wings 22 are arranged on both sides of the cubic satellite 2 to provide energy. A cylindrical separator 21 is arranged on the upper end of the cubic satellite 2 to facilitate the separation of the cubic satellite 2 during loading and prevent the cubic satellite 2 from colliding during transportation, so as to prevent the cubic satellite 2 from being damaged.

[0047] like Figure 5 As shown, a connecting plate 31 is provided on one side of the transfer device 3, and the lower part of the connecting plate 31 is connected to the driving shaft 14, so that the driving member 13 can drive the transfer device 3 to move up and down; a push block 32 and a baffle 323 are provided on the upper part of the transfer device 3;

[0048] like Figure 6 , Figure 7 As shown, the push block 32 is inside the hydraulic chamber 321, and the hydraulic chamber 321 is connected to the telescopic tube 322 through a pipeline. The telescopic tube 322 is a hollow tubular structure of the nesting device, and will extend when the inside is full of pressure; the other end of the telescopic tube 322 is connected to the baffle 323, and when the telescopic tube 322 is extended, the baffle 323 moves toward the inside of the adapter device 3; one side of the baffle 323 is connected to the inside of the adapter device 3 through an elastic rod 324, and the elastic rod 324 itself has a certain elasticity. When not subjected to external force, the elastic rod 324 is in an extended state;

[0049] When the push block 32 is squeezed, the telescopic tube 322 is extended by compressing the hydraulic chamber 321, driving the baffle 323 to move toward the inside of the adapter 3, compressing the elastic rod 324; when the push block 32 loses the squeeze, the elastic rod 324 recovers, driving the baffle 323 to extend toward the outside of the adapter 3, limiting the position of the cubic satellite 2, and the telescopic tube 322 contracts, driving the push block 32 to recover;

[0050] like Figure 8As shown, a third driving member 41 is provided inside the ejection device 4. The third driving member 41 can drive the third driving shaft 411 to perform telescopic movement. The other end of the third driving shaft 411 is connected to the extraction device 5. The third driving member 41 can drive the extraction device 5 to perform telescopic movement towards one side;

[0051] A release plate 42 is provided inside the ejection device 4. A second spring 421 is provided below the release plate 42. The second spring 421 keeps the release plate 42 in an upward movement state all the time. A rectangular card slot 423 is provided on one side of the release plate 42;

[0052] A clamping plate 43 is provided inside the ejection device 4. One end of the clamping plate 43 is connected to the inside of the ejection device 4 through an elastic rod two 431. The elastic rod two 431 has a certain elasticity by itself and is always in an extended state when not subjected to external forces. The clamping plate 43 can enter the card slot 423 to limit the release plate 42;

[0053] The extraction device 5 is provided inside the ejection device 4. A "triangle"-shaped groove is provided inside the extraction device 5. Among them, the vertical groove is the lifting groove 53, and the inclined groove is the control groove 54;

[0054] As Figure 9 shown, the release plate 42 is of a rectangular shell structure. A second spring 421 is provided below the inside of the release plate 42. A card slot 423 is provided on the release plate 42. Control rods 422 are provided on both sides of the release plate 42. The control rods 422 can move inside the lifting groove 53 and the control groove 54;

[0055] As Figure 10 shown, a push plate 432 is provided at one end of the clamping plate 43;

[0056] As Figure 11 shown, a sliding block 51 is provided below the extraction device 5. The sliding block 51 can slide inside the sliding groove 17 of the storage device 1 to limit the extraction device 5. A rectangular groove-shaped anti-collision notch 52 is provided on one side of the extraction device 5. The opening of the anti-collision notch 52 is smaller than the length of the push plate 432. When the extraction device 5 moves towards the ejection device 4, the extraction device 5 will compress the push plate 432 and move towards the inside of the ejection device 4. A second top push block 55 is provided on one side of the extraction device 5;

[0057] As Figure 12 、 Figure 13As shown, the second pushing block 55 is arranged inside the second hydraulic cavity 551. The second hydraulic cavity 551 is connected to the second telescopic pipe 552 through a pipeline. The second telescopic pipe 552 is a hollow tubular structure of the nested device and will perform an elongation movement when filled with pressure inside; the other end of the second telescopic pipe 552 is connected to the second baffle 553. When the second telescopic pipe 552 elongates, the second baffle 553 moves towards the inside of the extraction device 5; one side of the second baffle 553 is connected to the inside of the extraction device 5 through the third elastic rod 554. The third elastic rod 554 has a certain elasticity by itself. When not affected by external forces, the third elastic rod 554 is in an elongated state;

[0058] As Figure 14 shown, a third pushing block 56 is arranged inside the lower part of the extraction device 5. The third pushing block 56 is arranged inside the third hydraulic cavity 561. The third hydraulic cavity 561 is connected to the third telescopic pipe 562 through a pipeline. The other end of the third telescopic pipe 562 is connected to the third baffle 563. Two groups of the third baffle 563 are respectively arranged on both sides of the anti-collision notch 52. The rear of the third baffle 563 is connected to the inner wall of the extraction device 5 through the fourth elastic rod 564.

[0059] The basic principle of the present invention:

[0060] Standby stage:

[0061] As Figure 15 shown, this figure is a schematic diagram of the state of the storage device 1 when the transport rocket is launched. Among them, the extraction device 5 is received inside the ejection device 4. The ejection device 4 is at one end of the storage device 1, and the transfer device 3 stores the cube satellite 2;

[0062] Extraction stage:

[0063] The first driving part 13 on one side of the transfer device 3 where the cube satellite 2 at the extraction position is located drives the transfer device 3 to move upward by a certain distance through the first driving shaft 14, so that the first pushing block 32 of the transfer device 3 extends out of the storage device 1 by a certain distance;

[0064] The second driving part 15 drives the ejection device 4 to move upward through the second driving shaft 16, and the third driving part 41 drives the extraction device 5 to move towards the storage device 1 through the third driving shaft 411;

[0065] As the extraction device 5 moves, the control rod 422 of the release plate 42 will be squeezed by the upper end of the control groove 54. The control rod 422 will move downward inside the control groove 54, compressing the second spring 421. When the extraction device 5 moves to a certain distance, the release plate 42 is flush with the inner wall of the ejection device 4. The clamping plate 43 will be inserted into the clamping groove 423 under the action of the second elastic rod 431 to limit the release plate 42 to prevent the release plate 42 from restoring;

[0066] When the extraction device 5 contacts the lower part of the adapter device 3, the pushing block three 56 of the extraction device 5 is compressed. Through the telescopic tube three 562, the baffle three 563 contracts inward, compressing the elastic rod four 564; the pushing block one 32 of the adapter device 3 is compressed, and through the telescopic tube one 322, the baffle one 323 is driven to move inward. At this time, the upper part of the CubeSat 2 loses its restriction, and the CubeSat 2 moves upward under the action of the top plate 11 and the spring one 12. When the upper end of the CubeSat 2 is restricted by the baffle two 553, it stops moving, and the CubeSat 2 is sent from the adapter device 3 into the extraction device 5;

[0067] Transportation stage:

[0068] As Figure 17 shown, after the extraction device 5 houses the CubeSat 2, the driving part three 41 makes the extraction device 5 move towards the ejection device 4 through the driving shaft three 411; when the extraction device 5 separates from the adapter device 3, the baffle three 563 inside the extraction device 5 is restored by the elastic rod four 564, and the baffle one 323 inside the adapter device 3 is restored by the elastic rod one 324. Since the upper and lower CubeSats 2 are separated by the partition member 21 at this time, the restoration of the baffle three 563 and the baffle one 323 will not be restricted. Therefore, the baffle one 323 of the adapter device 3 limits the newly loaded CubeSat 2; the baffle three 563 of the extraction device 5 supports the bottom of the CubeSat 2 placed inside to prevent the CubeSat 2 from falling off;

[0069] Release stage:

[0070] As Figure 18 shown, as the extraction device 5 moves towards the ejection device 4, the pushing block two 55 is compressed. Through the telescopic tube two 552, the baffle two 553 contracts inward. After the baffle two 553 loses its restriction on the CubeSat 2, it still moves inward for a certain distance to prevent interference with the release of the CubeSat 2; when the extraction device 5 moves to the limit, the pushing plate 432 of the compression clamp 43 is pushed, making the clamp 43 move inward, compressing the elastic rod two 431; the clamp 43 loses its restriction on the release plate 42, and the control rod 422 of the release plate 42 moves upward along the lifting groove 53, and the spring two 421 is restored, driving the release plate 42 to move upward to release the CubeSat 2 inside the extraction device 5;

[0071] Repeating the above operations can complete the release of the CubeSat 2 at any position inside the storage device 1.

Claims

1. A controllable ejection device for a cube satellite, comprising: Storage device (1), transfer device (3), ejection device (4), extraction device (5); characterized in that: sliding grooves (17) are provided on both sides of the upper end surface of the storage device (1), a rectangular push plate (11) is arranged inside the storage device (1), a first spring (12) is arranged below the push plate (11), a first driving member (13) is arranged inside the storage device (1), a driving shaft one (14) is provided at the output end of the first driving member (13), one end of the driving shaft one (14) is connected to one side of the transfer device (3), a second driving member (15) is arranged inside one end of the storage device (1), a driving shaft two (16) is provided at the output end of the second driving member (15), a connecting plate (31) is arranged on one side of the transfer device (3), and the lower part of the connecting plate (31) is connected to the driving shaft one (14), a first push block (32) is arranged above the transfer device (3), a third driving member (41), a release plate (42) and a clamping plate (43) are arranged inside the ejection device (4), the extraction device (5) is arranged inside the ejection device (4), a sliding block (51) is arranged below the extraction device (5), an anti-collision notch (52) in the shape of a rectangular groove is arranged on one side of the extraction device (5), a "triangle"-shaped groove is arranged inside the extraction device (5), wherein the vertical groove is a lifting groove (53), the inclined groove is a control groove (54), a second push block (55) is arranged on one side of the extraction device (5), and a third push block (56) is arranged inside the lower part of the extraction device (5).

2. The controllable ejection device for a cube satellite according to claim 1, characterized in that: One end of the driving shaft one (14) is connected to one side of the transfer device (3), and one end of the driving shaft two (16) is connected to the bottom surface of the ejection device (4).

3. The controllable ejection device for a cube satellite according to claim 1, characterized in that: The CubeSat (2) has a square structure, solar wings (22) are arranged on both sides of the CubeSat (2), and a cylindrical partition member (21) is arranged at the upper end of the CubeSat (2).

4. A controllable ejection device for a CubeSat according to claim 1, characterized in that: The first push block (32) is located inside the first hydraulic cavity (321), the first hydraulic cavity (321) is connected to the first telescopic tube (322) through a pipeline, the first telescopic tube (322) is a hollow tubular structure of a nested device, the other end of the first telescopic tube (322) is connected to a first baffle (323), and one side of the first baffle (323) is connected to the inside of the transfer device (3) through a first elastic rod (324).

5. The controllable ejection device for a cube satellite according to claim 1, characterized in that: The third driving member (41) can drive the driving shaft three (411) to perform telescopic movement, and the other end of the driving shaft three (411) is connected to the extraction device (5).

6. The controllable ejection device for a CubeSat according to claim 1, characterized in that: The release plate (42) has a rectangular shell-like structure, a second spring (421) is arranged below the inside of the release plate (42), a clamping groove (423) is arranged on the release plate (42), control rods (422) are arranged on both sides of the release plate (42), and the control rods (422) can move inside the lifting groove (53) and the control groove (54).

7. The controllable ejection device for a cube satellite according to claim 1, characterized in that: A clamping plate (43) is arranged inside the ejection device (4), one end of the clamping plate (43) is connected to the inside of the ejection device (4) through a second elastic rod (431), and a pushing plate (432) is arranged at the upper end of the clamping plate (43).

8. The controllable ejection device for a cube satellite according to claim 1, characterized in that: The pushing block two (55) is arranged inside the hydraulic chamber two (551). The hydraulic chamber two (551) is connected to the telescopic tube two (552) through a pipeline. The telescopic tube two (552) is a hollow tubular structure of the nested device. The other end of the telescopic tube two (552) is connected to the baffle two (553). One side of the baffle two (553) is connected to the inside of the extraction device (5) through the elastic rod three (554).

9. The controllable ejection device for a cube satellite according to claim 1, characterized in that: The pushing block three (56) is arranged inside the hydraulic chamber three (561). The hydraulic chamber three (561) is connected to the telescopic tube three (562) through a pipeline. The other end of the telescopic tube three (562) is connected to the baffle three (563). There are two groups of the baffle three (563), which are respectively arranged on both sides of the anti-collision notch (52). The rear of the baffle three (563) is connected to the inner wall of the extraction device (5) through the elastic rod four (564).

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