Z-shaped layout fixed-length double-rope group closed force system capture and recovery net system

Abstract

The application discloses a Z-shaped layout fixed-length double-rope group closed force system capturing and recovering net system, which comprises a capturing and intercepting assembly, the capturing and intercepting assembly comprises a rope group a, a rope group b, a rope group c and a rope group d, two dynamic wheel groups are arranged on the rope group a, the rope group b, the rope group c and the rope group d, the two dynamic wheel groups are oppositely arranged, the rope group a between the two dynamic wheel groups is an intercepting section a, the rope group b between the two dynamic wheel groups is an intercepting section b, the rope group c between the two dynamic wheel groups is an intercepting section c, and the rope group d between the two dynamic wheel groups is an intercepting section d; the supporting assembly comprises four stand columns, the four stand columns are fixedly connected to a base, guide rails are fixedly connected between adjacent two stand columns, the dynamic wheel groups are slidably connected to the guide rails, a plurality of fixed wheels are arranged on the stand columns, and the rope group a, the rope group b, the rope group c and the rope group d are arranged on different fixed wheels. The application can effectively reduce the lengths of the rope group a1, the rope group b2, the rope group c3 and the rope group d4, and simultaneously reduce the force and work of a traction device.

Description

Technical Field

[0001] This invention relates to the field of rocket housing capture and recovery, and in particular to a Z-shaped layout fixed-length double-rope grouped closed force system capture and recovery net system. Background Technology

[0002] Rocket canister capture and recovery technology refers to the technology of recovering and reusing rockets after launch. The high cost of launching disposable launch vehicles is a significant factor restricting the development of the aerospace industry. Using rocket canister recovery technology can reduce launch costs. Currently, each launch costs as much as $60 million; if rocket canisters are successfully recovered, it is possible to reduce the price to less than $10 million per launch, a significant improvement.

[0003] Rocket recovery methods mainly include parachute recovery and rocket gliding recovery. Parachute recovery involves deploying a parachute after the rocket enters the atmosphere, using drag to slow it down, and then allowing it to descend vertically to the ground. This method is suitable for smaller rockets and satellites. Rocket gliding recovery involves the rocket gliding in the atmosphere using its wings for a certain degree of deceleration and control, and then descending vertically using thrusters. This recovery process is more cumbersome. Therefore, a Z-shaped, fixed-length, double-rope, grouped closed-loop force system recovery net is proposed to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a Z-shaped layout fixed-length double-rope grouped closed force system capture and recovery net system to solve the problems existing in the prior art and make the recovery method applicable to different rocket housings.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention provides a Z-shaped layout fixed-length double-rope grouped closed force system capture and recovery net system, comprising:

[0006] A capture and interception assembly includes rope groups a, b, c, and d. Each of the rope groups a, b, c, and d has two sets of rotating wheels wound around it. The two sets of rotating wheels are arranged opposite to each other. Rope group a between the two sets of rotating wheels is interception segment a, rope group b between the two sets of rotating wheels is interception segment b, rope group c between the two sets of rotating wheels is interception segment c, and rope group d between the two sets of rotating wheels is interception segment d. Interception segments a and b are arranged parallel to each other, as are interception segments c and d. Interception segments a and c are arranged perpendicular to each other.

[0007] The support assembly includes four columns, which are fixedly connected to a base. A guide rail is fixedly connected between two adjacent columns. A set of moving wheels is slidably connected to the guide rail and is driven by a traction device. Several fixed wheels are provided on the columns. Rope groups a, b, c, and d are all wound around different fixed wheels. The ends of rope groups a, b, c, and d are all connected to the four columns.

[0008] Preferably, each of the rope group a, rope group b, rope group c, and rope group d includes two intercepting cables. Both ends of each intercepting cable are connected to the opposing columns. Each intercepting cable is wound around the drive wheel group, and the two intercepting cables are arranged crosswise.

[0009] Preferably, the traction device is located inside the column.

[0010] Preferably, each of the four columns is provided with a plurality of rope winding and releasing mechanisms and a plurality of tensioning mechanisms, both ends of the intercepting cable are fixedly connected to the rope winding and releasing mechanisms, and both ends of the intercepting cable are provided with the tensioning mechanisms.

[0011] This invention discloses the following technical effects: In this device, interception sections a, b, c, and d form a grid shape, facilitating the interception of the rocket housing. Each rope group a, b, c, and d is equipped with two sets of moving wheels, allowing for easy movement of these sections during interception. The two sets of moving wheels in each rope group are respectively positioned on two opposing guide rails, further enhancing movement. Multiple fixed wheels guide the direction of rope groups a, b, c, and d, ensuring they enter the interior of the column and facilitating adjustment of their length and tension. This invention effectively reduces the length of rope groups a1, b2, c3, and d4, while also reducing the force and work required by the traction device. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the Z-shaped layout fixed-length double-rope grouped closed force system capture and recovery net system of the present invention;

[0014] Figure 2 This is a schematic diagram of the rope assembly a structure of the present invention;

[0015] Figure 3 This is a schematic diagram of the column structure of the present invention;

[0016] Figure 4 This is a schematic diagram of the internal structure of the column of the present invention;

[0017] Figure 5 for Figure 4 A magnified view of part 'a';

[0018] Figure 6 for Figure 4 A magnified view of part b;

[0019] Figure 7 for Figure 4 A magnified view of part of c;

[0020] Figure 8 for Figure 4 A magnified view of part d;

[0021] Figure 9 for Figure 4 A magnified view of part e in the image;

[0022] Among them, 1. Rope group a; 2. Rope group b; 3. Rope group c; 4. Rope group d; 5. Moving wheel group; 6. Interception section a; 7. Interception section b; 8. Interception section c; 9. Interception section d; 10. Column; 11. Base; 12. Guide rail; 13. Fixed wheel; 14. Interception rope; 15. Traction device; 16. Rope winding and unwinding mechanism; 17. Tensioning mechanism. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Reference Figure 1-9 This invention provides a Z-shaped layout, fixed-length, double-rope, grouped, closed-loop force system for capturing and recovering nets, comprising:

[0026] The capture and interception assembly includes rope groups a1, b2, c3, and d4. Two rotating wheel groups 5 are wound around each of the rope groups a1, b2, c3, and d4, with the two rotating wheel groups 5 facing each other. Rope group a1 between the two rotating wheel groups 5 is the interception segment a6, rope group b2 between the two rotating wheel groups 5 is the interception segment b7, rope group c3 between the two rotating wheel groups 5 is the interception segment c8, and rope group d4 between the two rotating wheel groups 5 is the interception segment d9. Interception segments a6 and b7 are arranged in parallel, as are interception segments c8 and d9. Interception segments a6 and c8 are arranged perpendicularly.

[0027] The support assembly includes four columns 10, which are fixedly connected to the base 11. A guide rail 12 is fixedly connected between two adjacent columns 10. A set of moving wheels 5 is slidably connected to the guide rail 12. The set of moving wheels 5 is driven by a traction device 15. Several fixed wheels 13 are provided on the columns 10. Rope groups a1, b2, c3 and d4 are all wound around different fixed wheels 13. The ends of rope groups a1, b2, c3 and d4 are all connected to the four columns 10.

[0028] This device is mounted on a base, supported by four columns 10. Rope groups a1, b2, c3, and d4 are used to intercept the rocket housing. Interception sections a6 and b7 are arranged in parallel, as are interception sections c8 and d9. Interception sections a6 and c8 are perpendicular, forming a grid pattern. The rocket housing falls into the center of this grid. Two moving wheel groups 5 on rope group a1 are mounted on two opposing guide rails 12. During the rocket housing recovery process, the moving wheel groups 5 need to be continuously adjusted. The traction device 15 allows for... The moving wheel assembly 5 moves on the guide rail 12. Each moving wheel assembly 5 can be equipped with two traction devices 15 to facilitate the movement of the moving wheel assembly 5. The two moving wheel assemblies 5 on rope assembly b2, rope assembly c3 and rope assembly d4 are arranged in the same way as rope assembly a1. Multiple fixed wheels 13 are used to guide the direction of rope assembly a1, rope assembly b2, rope assembly c3 and rope assembly d4, so that rope assembly a1, rope assembly b2, rope assembly c3 and rope assembly d4 can enter the interior of the column 10, which facilitates the connection of the two ends of rope assembly a1, rope assembly b2, rope assembly c3 and rope assembly d4 to other devices. When recovering the rocket box, there is no need to adjust the length and tension.

[0029] Further optimization of the scheme: rope group a1, rope group b2, rope group c3 and rope group d4 each include two intercepting cables 14. Both ends of each intercepting cable 14 are connected to the opposing columns 10. Each intercepting cable 14 is wound around the driving wheel group 5, and the two intercepting cables 14 are arranged crosswise.

[0030] The drive wheel assembly 5 consists of two drive wheels fixedly connected together, with two cross-shaped intercepting cables 14 wound around the two different drive wheels, respectively. (See reference...) Figure 1 and Figure 3 The intercepting cable 14 is led out from the column 10, guided by the fixed wheel 13, wrapped around one of the moving wheels in the moving wheel group 5, and then led to one of the moving wheels in the opposite moving wheel group 5. After passing around, it is led to the diagonally set column 10, guided by the fixed wheel 13 and then enters the interior of the column 10. In fact, the intercepting section a6 is two intersecting intercepting cables 14. The rope groups b2, c3 and d4 have the same structure as the rope group a1. Each intercepting cable 14 has a counterweight mechanism at both ends, which connects the two moving wheels together to form the moving wheel group 5. When the two intercepting cables 14 pass through the two moving wheels on a moving wheel group 5 respectively, the weight of the counterweights on both sides cancels each other out, and the traction device 15 will be more effortless when pulling the moving wheel group 5.

[0031] The design was further optimized so that the traction device 15 is located inside the column 10.

[0032] The traction device 15 is used to move the moving wheel assembly 5. In each rope group, each moving wheel assembly 5 has an intercepting cable 14. The intercepting cable 14 on each moving wheel assembly 5 pulls the moving wheel assembly 5 to both sides to keep the moving wheel assembly 5 in a balanced state. When the traction device 15 moves the moving wheel assembly 5, less force can be used, thereby reducing the power consumption of the equipment. When the rocket box is down, the moving wheel assembly 5 can be moved quickly, thereby accurately intercepting the rocket box.

[0033] The scheme is further optimized by installing several rope winding and releasing mechanisms 16 and several tensioning mechanisms 17 in each of the four columns 10. Both ends of the intercepting cable 14 are fixedly connected to the rope winding and releasing mechanisms 16, and both ends of the intercepting cable 14 are equipped with tensioning mechanisms 17.

[0034] The rope retraction mechanism 16 is used to adjust the length of the interception cable 14, and the tensioning mechanism 17 is used to tension the interception cable 14. No adjustment is required during the interception of the rocket housing.

[0035] The working principle of this device is as follows: the length of the intercepting cable 14 is adjusted by the cable release and take-up mechanism 16, and the tensioning mechanism 17 tensions the intercepting cable 14. The intercepting sections a6, b7, c8, and d9 form a grid shape to intercept the rocket box. When the rocket box is about to fall, the moving wheel group 5 can be moved by the traction device to move the intercepting sections a6, b7, c8, and d9, adjusting the interception position. In each cable group, each moving wheel group 5 has an intercepting cable 14. The intercepting cable 14 on each moving wheel group 5 pulls the moving wheel group 5 to both sides to keep the moving wheel group 5 in a balanced state. When the traction device 15 moves the moving wheel group 5, less force can be used, thereby reducing the force of the traction device 15.

[0036] The self-balancing wheel assembly 5 consists of two wheels and their connecting seats. It converts the force on the intercepting cable 14 into internal system forces, forming a closed force system and preventing the traction cable on the traction device 15 from experiencing the same tension as the intercepting cable 14. Simultaneously, it prevents the initial tension of the intercepting cable 14 from acting on the traction cable system. Because the intercepting cable 14 has a symmetrical Z-shaped layout, the two intercepting cables 14 in each wheel assembly 5 intersect near the midpoint of the span. This intersection generates a certain amount of friction, which, experimentally verified, is significantly less than the tension force. Thus, this device forms a closed force system recovery system, offsetting the tensioning system force, reducing the moving mass, reducing the length of the intercepting cable 14, and minimizing traction power.

[0037] This invention has the following advantages: In this device, interception sections a, b, c, and d form a grid shape, facilitating the interception of the rocket housing. Each of the rope groups a, b, c, and d is equipped with two moving wheel groups, each including two moving wheels. The two ropes of each rope group pass over one moving wheel. During the interception movement, interception sections a, b, c, and d move easily. The traction forces acting on the moving wheels by each rope cancel each other out, significantly reducing the external force acting on the moving wheel groups. The two moving wheel groups are placed on two parallel guide rails and move synchronously. Multiple fixed wheels guide the direction of rope groups a, b, c, and d, ensuring the smooth movement of the rope groups. Rope d enters the interior of the column, facilitating adjustments to the length and tension of rope groups a, b, c, and d. Both ropes in rope group a are Z-shaped. When the two moving pulleys on rope group a move simultaneously in the same direction, the two ropes enter the interception section group a from one pulley and exit from the other pulley by the same length, keeping the length of interception section a constant. Similarly, when the two moving pulleys on rope groups b, c, and d move simultaneously, the lengths of interception sections b, c, and d also remain constant. During movement, interception sections a and b are parallel, and interception sections c and d are parallel, making interception of the rocket housing more reliable. During the movement of all interception sections, the ends of the ropes and their tensioning mechanisms do not need to move. This invention effectively reduces the length of rope groups a1, b2, c3, and d4, while also reducing the force and work done by the traction device.

[0038] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0039] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A Z-shaped layout, fixed-length, double-rope, grouped, closed-loop force system for capturing and recovering nets, characterized in that... include: The capture and interception assembly includes rope group a (1), rope group b (2), rope group c (3) and rope group d (4). Two moving wheel groups (5) are wound around each of the rope group a (1), rope group b (2), rope group c (3) and rope group d (4). The two moving wheel groups (5) are arranged opposite to each other. The rope group a (1) between the two moving wheel groups (5) is the interception segment a (6). The rope group b (2) between the two moving wheel groups (5) is the interception segment b (7). The rope group c (3) between the two moving wheel groups (5) is the interception segment c (8). The rope group d (4) between the two moving wheel groups (5) is the interception segment d (9). The interception segment a (6) and the interception segment b (7) are arranged in parallel. The interception segment c (8) and the interception segment d (9) are arranged in parallel. The interception segment a (6) and the interception segment c (8) are arranged perpendicular to each other. The support assembly includes four columns (10), which are fixedly connected to the base (11). A guide rail (12) is fixedly connected between two adjacent columns (10). The moving wheel group (5) is slidably connected to the guide rail (12). The moving wheel group (5) is connected to a traction device (15). Several fixed wheels (13) are provided on the columns (10). The rope group a (1), the rope group b (2), the rope group c (3), and the rope group d (4) are all wound around different fixed wheels (13). The ends of the rope group a (1), the rope group b (2), the rope group c (3), and the rope group d (4) are all connected to the four columns (10). The rope group a (1), the rope group b (2), the rope group c (3) and the rope group d (4) each include two intercepting cables (14). The two ends of each intercepting cable (14) are connected to the opposing columns (10). Each intercepting cable (14) is wound around the wheel group (5). The two intercepting cables (14) are arranged crosswise.

2. The Z-shaped layout fixed-length double-rope grouped closed force system capture and recovery net system according to claim 1, characterized in that: The traction device (15) is located inside the column (10).

3. The Z-shaped layout fixed-length double-rope grouped closed force system capture and recovery net system according to claim 2, characterized in that: Each of the four columns (10) is provided with a number of rope winding and unwinding mechanisms (16) and a number of tensioning mechanisms (17). Both ends of the intercepting cable (14) are fixedly connected to the rope winding and unwinding mechanism (16), and both ends of the intercepting cable (14) are provided with the tensioning mechanism (17).

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