Z-shaped layout fixed-length dual-rope-grouped closed force system capture and recovery net system

Abstract

A Z-shaped layout fixed-length dual-rope-grouped closed force system capture and recovery net system, comprising: a capture and interception assembly, which comprises a rope group a (1), a rope group b (2), a rope group c (3) and a rope group d (4), wherein the rope group a (1), the rope group b (2), the rope group c (3) and the rope group d (4) are each wound around two movable pulley blocks (5), the two movable pulley blocks (5) being arranged opposite each other, and the rope group a (1) between the two movable pulley blocks (5) is an interception section a (6), the rope group b (2) between the two movable pulley blocks (5) is an interception section b (7), the rope group c (3) between the two movable pulley blocks (5) is an interception section c (8), and the rope group d (4) between the two movable pulley blocks (5) is an interception section d (9); and a support assembly which comprises four stand columns (10), wherein the four stand columns (10) are fixedly connected to a base (11), a guide rail (12) is fixedly connected between every two adjacent stand columns (10), the movable pulley blocks (5) are slidably connected to the guide rails (12), and are in transmission connection with a traction device (15), a plurality of fixed pulleys (13) are provided on the stand columns (10), and the rope group a (1), the rope group b (2), the rope group c (3) and the rope group c (4) are each wound around a different fixed pulley (13). The capture and recovery net system can effectively reduce the length of the rope group a (1), the length of the rope group b (2), the length of the rope group c (3) and the length of the rope group d (4), and can also reduce the force and work of the traction device.

Description

Z-shaped fixed-length double-rope group closed force system capture and recovery network system Technical Field

[0001] The present invention relates to the field of rocket box capture and recovery, and in particular to a Z-shaped fixed-length double-rope grouped closed force system capture and recovery network system. Background Art

[0002] Rocket tank capture and recovery technology refers to the process of recovering and reusing a rocket after launch. Disposable launch vehicles are expensive to launch, and this high cost is a major constraint on the development of the space industry. Rocket tank recovery technology can reduce launch costs. Each launch costs as much as $60 million. If rocket tank recovery is successful, it could potentially reduce the price to under $10 million per launch, a significant improvement.

[0003] Rocket box recovery methods mainly include parachute recovery method and rocket gliding recovery method. The parachute recovery method is to deploy the parachute after the rocket enters the atmosphere, use resistance to decelerate, and then vertically descend to the ground. This method is suitable for smaller rockets and satellites. The rocket gliding recovery method refers to the rocket using wings to glide in the atmosphere, perform a certain degree of deceleration and control, and then vertically descend through thrusters. This recovery process is relatively cumbersome. Therefore, a Z-shaped fixed-length double-rope grouped closed force system recovery network is proposed to solve the above problems.

[0004] Summary of the Invention

[0005] The purpose of the present invention is to provide a Z-shaped fixed-length double-rope grouped closed force system capture and recovery network system to solve the problems existing in the above-mentioned prior art and enable the recovery method to be applicable to different rocket boxes.

[0006] To achieve the above-mentioned object, the present invention provides the following solution: The present invention provides a Z-shaped fixed-length double-rope group closed force system capture and recovery net system, comprising:

[0007] A capture and interception assembly, comprising a rope group a, a rope group b, a rope group c, and a rope group d, wherein each of the rope groups a, b, c, and d is wound with two moving wheel groups, the two moving wheel groups being arranged opposite each other, the rope group a between the two moving wheel groups being the interception section a, the rope group b between the two moving wheel groups being the interception section b, the rope group c between the two moving wheel groups being the interception section c, and the rope group d between the two moving wheel groups being the interception section d, the interception section a being arranged in parallel with the interception section b, the interception section c being arranged in parallel with the interception section d, and the interception section a being arranged perpendicular to the interception section c;

[0008] A support assembly, the support assembly includes four columns, the four columns are fixedly connected to the base, a guide rail is fixedly connected between two adjacent columns, the moving wheel group is slidably connected to the guide rail, the moving wheel group is transmission-connected to a traction device, a plurality of fixed wheels are provided on the columns, the rope group a, the rope group b, the rope group c and the rope group d are all wound around different fixed wheels, and the ends of the rope group a, the rope group b, the rope group c and the rope group d are all connected to the four columns.

[0009] Preferably, the rope group a, the rope group b, the rope group c and the rope group d each include two intercepting ropes, both ends of each intercepting rope are connected to the oppositely arranged columns, each intercepting rope is wound around the moving wheel group, and the two intercepting ropes are cross-arranged.

[0010] Preferably, the traction device is located inside the column.

[0011] Preferably, a plurality of rope-retracting and -releasing mechanisms and a plurality of tensioning mechanisms are provided in each of the four columns, both ends of the intercepting rope are fixedly connected to the rope-retracting and -releasing mechanisms, and both ends of the intercepting rope are provided with the tensioning mechanisms.

[0012] The present invention discloses the following technical effects: In this device, interception sections a, b, c, and d are arranged in a crisscross pattern, facilitating interception of a rocket box. Rope groups a, b, c, and d are each provided with two moving wheel assemblies, facilitating movement of these sections during interception. The two moving wheel assemblies of each rope group are disposed on two opposing guide rails, further facilitating movement. Multiple fixed wheels are used to guide the directions of rope groups a, b, c, and d, allowing them to enter the interior of a column, facilitating adjustment of the length and tension of rope groups a, b, c, and d. The present invention can effectively reduce the length of rope groups a1, b2, c3, and d4, while also reducing the force and work of the traction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] FIG1 is a schematic diagram of a Z-shaped fixed-length double-rope group closed force system capture and recovery network system according to the present invention;

[0015] FIG2 is a schematic structural diagram of a rope group a of the present invention;

[0016] FIG3 is a schematic diagram of the column structure of the present invention;

[0017] FIG4 is a schematic diagram of the internal structure of the column of the present invention;

[0018] FIG5 is a partial enlarged view of a in FIG4;

[0019] FIG6 is a partial enlarged view of b in FIG4;

[0020] FIG7 is a partial enlarged view of c in FIG4;

[0021] FIG8 is a partial enlarged view of d in FIG4;

[0022] FIG9 is a partial enlarged view of e in FIG4 ;

[0023] Among them, 1. Rope group a; 2. Rope group b; 3. Rope group c; 4. Rope group d; 5. Driving 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 retraction and release mechanism; 17. Tensioning mechanism. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] 1-9 , the present invention provides a Z-shaped fixed-length double-rope group closed force system capture and recovery network system, comprising:

[0027] The capture and interception assembly includes a rope group a1, a rope group b2, a rope group c3, and a rope group d4. Two moving wheel groups 5 are wound around the rope groups a1, b2, c3, and d4. The two moving wheel groups 5 are arranged opposite each other. The rope group a1 between the two moving wheel groups 5 is the interception section a6, and the rope group b2 between the two moving wheel groups 5 is the interception section b7; the rope group c3 between the two moving wheel groups 5 is the interception section c8, and the rope group d4 between the two moving wheel groups 5 is the interception section d9. The interception section a6 and the interception section b7 are arranged in parallel, the interception section c8 and the interception section d9 are arranged in parallel, and the interception section a6 is arranged perpendicular to the interception section c8;

[0028] 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 driving wheel group 5 is slidably connected to the guide rail 12. The driving wheel group 5 is transmission-connected to the traction device 15. Several fixed wheels 13 are provided on the column 10. Rope group a1, rope group b2, rope group c3 and rope group d4 are all wound on different fixed wheels 13. The ends of rope group a1, rope group b2, rope group c3 and rope group d4 are all connected to the four columns 10.

[0029] The device is set on a base, and four columns 10 are used to support the device. Rope group a1, rope group b2, rope group c3 and rope group d4 are used to intercept the rocket box. The interception section a6 and the interception section b7 are set in parallel, and the interception section c8 and the interception section d9 are set in parallel. The interception section a6 and the interception section c8 are set vertically, so that the interception section a6, the interception section b7, the interception section c8 and the interception section d9 form a well shape, and the rocket box falls into the middle of the well shape. The two moving wheel groups 5 on the rope group a1 are respectively set on two opposite guide rails 12. During the recovery process of the rocket box, the moving wheel group 5 needs to be continuously adjusted, and the traction device 15 can make The moving wheel group 5 moves on the guide rail 12. Each moving wheel group 5 can be provided with two traction devices 15 to facilitate the movement of the moving wheel group 5. The two moving wheel groups 5 on the rope group b2, rope group c3 and rope group d4 are set in the same way as the rope group a1. Multiple fixed wheels 13 are used to guide the direction of the rope group a1, rope group b2, rope group c3 and rope group d4, so that the rope group a1, rope group b2, rope group c3 and rope group d4 enter the interior of the column 10, making it convenient for the two ends of the rope group a1, rope group b2, rope group c3 and rope group d4 to be connected to other devices. When recovering the rocket box, there is no need to adjust the length and tension.

[0030] According to a further optimization scheme, rope group a1, rope group b2, rope group c3 and rope group d4 each include two intercepting ropes 14, both ends of each intercepting rope 14 are connected to oppositely arranged columns 10, each intercepting rope 14 is wound around the driving wheel group 5, and the two intercepting ropes 14 are cross-arranged.

[0031] The moving wheel group 5 is composed of two moving wheels fixedly connected together, and two cross-arranged intercepting ropes 14 are respectively wound around two different moving wheels. Referring to Figures 1 and 3, the intercepting rope 14 is led out from the column 10, guided by the fixed wheel 13, wound around one moving wheel in the moving wheel group 5, and then led to a moving wheel in the opposite moving wheel group 5. After winding around, it is led to the diagonally arranged column 10, and enters the interior of the column 10 after being guided by the fixed wheel 13. In fact, the intercepting section a6 is two cross-arranged intercepting ropes 14, and the rope group b2, rope group c3 and rope group d4 have the same structure as the rope group a1. A counterweight mechanism is provided at both ends of each intercepting rope 14, which connects the two moving wheels together to form the moving wheel group 5. When the two intercepting ropes 14 pass through the two moving wheels on a moving wheel group 5 respectively, the gravity of the counterweight blocks on both sides offset each other, and the traction device 15 will be more labor-saving when pulling the moving wheel group 5 to move.

[0032] In a further optimized solution, the traction device 15 is located inside the column 10 .

[0033] The traction device 15 is used to pull the moving wheel group 5 to move. In each rope group, there is an intercepting rope 14 on each moving wheel group 5. The intercepting rope 14 on each moving wheel group 5 pulls the moving wheel group 5 to both sides, so that the moving wheel group 5 is in a balanced state. When the traction device 15 pulls the moving wheel group 5 to move, less force can be used, thereby reducing the power consumption of the equipment. When the rocket box is alive, the moving wheel group 5 can be moved quickly, so that the rocket box can be accurately intercepted.

[0034] To further optimize the solution, a plurality of rope-retracting mechanisms 16 and a plurality of tensioning mechanisms 17 are provided in the four columns 10 , both ends of the intercepting rope 14 are fixedly connected to the rope-retracting mechanisms 16 , and a tensioning mechanism 17 is provided at both ends of the intercepting rope 14 .

[0035] The rope retracting and releasing mechanism 16 is used to adjust the length of the intercepting rope 14, and the tensioning mechanism 17 is used to tension the intercepting rope 14. No adjustment is required during the process of intercepting the rocket box.

[0036] The working principle of this device is that in this device, the length of the intercepting rope 14 is adjusted by the rope-retracting mechanism 16, the tensioning mechanism 17 tensions the intercepting rope 14, and the intercepting segment a6, the intercepting segment b7, the intercepting segment c8 and the intercepting segment d9 form a crisscross shape to intercept the rocket box. When the rocket box is about to fall, the driving wheel group 5 can be moved by the traction device to move the intercepting segment a6, the intercepting segment b7, the intercepting segment c8 and the intercepting segment d9 to adjust the interception position. In each rope group, there is an intercepting rope 14 on each driving wheel group 5. The intercepting rope 14 on each driving wheel group 5 pulls the driving wheel group 5 to both sides, so that the driving wheel group 5 is in a balanced state. When the traction device 15 moves the traction driving wheel group 5, less force can be used, thereby reducing the force of the traction device 15.

[0037] The moving wheel group 5 is in a self-balancing state. The self-balancing moving wheel group 5 is composed of two moving wheels and their connecting seats. It can convert the force on the intercepting rope 14 into the internal force of the system to form a closed force system, so as to prevent the traction rope on the traction device 15 from being subjected to the same tension as the intercepting rope 14. At the same time, the initial tension of the intercepting rope 14 can be prevented from acting on the traction rope system. Since the intercepting rope 14 is a symmetrical Z-shaped layout, the two intercepting ropes 14 in each group of moving wheel groups 5 form a cross near the midpoint of the span. The cross will generate a certain friction force. After experimental verification, the friction force is significantly smaller than the tensioning force. In this way, the present device forms a closed force recovery system, which offsets the force of the tensioning system, reduces the moving mass, reduces the length of the intercepting rope 14, and minimizes the traction power.

[0038] The present invention has the following advantages: in this device, the interception section a, the interception section b, the interception section c and the interception section d form a tic-tac-toe shape, which is convenient for intercepting the rocket box; two moving wheel groups are provided on the rope group a, the rope group b, the rope group c and the rope group d, each moving wheel group includes two moving wheels, and the two ropes of the rope group are respectively passed around one moving wheel; during the interception movement, the interception section a, the interception section b, the interception section c and the interception section d are convenient to move; the traction force of each rope acting on the moving wheel cancels each other, so that the external force acting on the moving wheel group is greatly reduced; the two moving wheel groups are respectively placed on two parallel guide rails and move synchronously; a plurality of fixed wheels are used to guide the direction of the rope group a, the rope group b, the rope group c and the rope group d, so that the rope group a, the rope group b, the rope group c and the rope group d enters the interior of the column, facilitating adjustment of the length and tension of rope groups a, b, c, and d. The two ropes of rope group a are both Z-shaped. When the two moving pulleys on rope group a move simultaneously in the same direction, the two ropes enter interception segment group a from only one moving pulley and exit interception segment group a from the other moving pulley at equal lengths. The length of interception segment a remains unchanged. Similarly, when the two moving pulleys on rope groups b, c, and d move simultaneously, the lengths of interception segments b, c, and d also remain unchanged. During movement, interception segment a remains parallel to interception segment b, and interception segment c remains parallel to interception segment d, making interception of rocket boxes more reliable. During the movement of all interception segments, the rope ends and their tensioning mechanisms do not need to move. The present invention effectively reduces the lengths of rope groups a1, b2, c3, and d4, while also reducing the force and work of the traction device.

[0039] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A Z-shaped fixed-length double-rope grouped closed force capture and recovery net system, characterized by: include: A capture and interception assembly, comprising a rope group a (1), a rope group b (2), a rope group c (3) and a rope group d (4), wherein two moving wheel groups (5) are wound around the rope group a (1), the rope group b (2), the rope group c (3) and the rope group d (4), and 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 an interception section a (6), the rope group b (2) between the two moving wheel groups (5) is an interception section b (7), the rope group c (3) between the two moving wheel groups (5) is an interception section c (8), and the rope group d (4) between the two moving wheel groups (5) is an interception section d (9), the interception section a (6) and the interception section b (7) are arranged in parallel, the interception section c (8) and the interception section d (9) are arranged in parallel, and the interception section a (6) and the interception section c (8) are arranged perpendicularly; A support assembly, wherein the support assembly includes four columns (10), the four columns (10) are fixedly connected to a 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 transmission-connected to a traction device (15), a plurality of 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), and 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).

2. The Z-shaped fixed-length double-rope grouped closed force capture and recovery net system according to claim 1 is characterized by: 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 ropes (14), both ends of each intercepting rope (14) are connected to the oppositely arranged columns (10), each intercepting rope (14) is wound around the moving wheel group (5), and the two intercepting ropes (14) are arranged crosswise.

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

4. The Z-shaped fixed-length double-rope grouped closed force capture and recovery net system according to claim 3 is characterized by: A plurality of rope-retracting and -releasing mechanisms (16) and a plurality of tensioning mechanisms (17) are provided in each of the four upright columns (10), both ends of the intercepting rope (14) are fixedly connected to the rope-retracting and -releasing mechanisms (16), and both ends of the intercepting rope (14) are provided with the tensioning mechanisms (17).

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