Rocket landing leg deployment mechanism

Abstract

The utility model relates to rocket landing leg technical field discloses rocket landing leg unfolding mechanism, including the shell, the outer wall of shell is provided with the sliding shell, the inner wall fixedly connected with hydraulic pressure rod of sliding shell, the output fixedly provided with the moving block of hydraulic pressure rod, the outer wall sliding connection of moving block is in the inner wall of sliding shell, the outer wall sliding connection in the outer wall of shell of sliding shell, the inner wall of moving block is rotatably connected with the rotating lever, the outer wall of sliding shell is set with the sliding slot, the outer wall sliding connection in the inner wall of sliding slot of rotating lever, the outer wall fixedly connected sliding slot with the rotating plate of rotating lever, the outer wall fixedly connected with the limit axle of rotating plate, in the utility model, the opening hydraulic pressure rod drives the moving block to slide, and further through the rotating lever sliding in the inner wall of sliding slot drives the rotating plate rotation, thereby drives the limit axle and the support leg rotation, has reached the effect that realizes stable support, and the response speed is fast.

Description

Technical Field

[0001] This utility model relates to the field of rocket landing leg technology, and in particular to a rocket landing leg deployment mechanism. Background Technology

[0002] The rocket landing leg deployment mechanism is a key subsystem for achieving vertical rocket recovery. During the return process, this mechanism needs to precisely control the deployment and locking of the landing legs and absorb the impact generated during landing to ensure a smooth and safe landing. Its design must meet stringent requirements for lightweight, high reliability, rapid response, and strong shock resistance. Different rockets employ different landing leg deployment mechanisms.

[0003] In existing technologies, rocket landing legs deploy by gravity, which is not stable or fast enough to adapt to the complex conditions during rocket landing. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a rocket landing leg deployment mechanism, which aims to improve the problem that the rocket landing leg deployment is not stable or fast enough and is difficult to adapt to the complex situation during rocket landing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rocket landing leg deployment mechanism, comprising a shell, a sliding shell provided on the outer wall of the shell, a hydraulic rod fixedly connected to the inner wall of the sliding shell, a movable block fixedly provided at the output end of the hydraulic rod, the outer wall of the movable block slidably connected to the inner wall of the sliding shell, the outer wall of the sliding shell slidably connected to the outer wall of the shell, a rotating rod rotatably connected to the inner wall of the movable block, a sliding groove provided on the outer wall of the sliding shell, the outer wall of the rotating rod slidably connected to the inner wall of the sliding groove, a rotating plate fixedly connected to the outer wall of the rotating rod, a limiting shaft fixedly connected to the outer wall of the rotating plate, the outer wall of the limiting shaft rotatably connected to the inner wall of the supporting leg, the outer wall of the limiting shaft being disposed on the outer wall of the sliding shell, the inner wall of the supporting leg rotatably connected to the outer wall of the sliding shell, a rotating shaft rotatably connected to the inner wall of the supporting leg, the outer wall of the rotating shaft being fixedly connected to the inner wall of the sliding shell, and a limit assembly provided inside the sliding shell.

[0006] Preferably, the limiting component includes a fixing rod, the outer end of which is fixedly connected to the inner wall of the sliding shell, and a limiting block is rotatably connected to the outer wall of the fixing rod.

[0007] Preferably, the outer wall of the limiting block is disposed on the outer wall of the rotating rod, and a spring is fixedly connected to the outer wall of the limiting block.

[0008] Preferably, the end of the spring away from the limiting block is fixedly connected to a fixing plate, and the outer wall of the fixing plate is fixedly connected to the inner wall of the sliding shell.

[0009] Preferably, a fixed shell is fixedly connected to the outer wall of the outer shell, and a hydraulic cylinder is fixedly connected to the upper surface of the fixed shell.

[0010] Preferably, a sliding block is fixedly provided at the output end of the hydraulic cylinder, and the outer wall of the sliding block is slidably connected to the outer wall of the outer casing.

[0011] Preferably, the outer wall of the sliding block is rotatably connected to a rotating plate, and the outer wall of the rotating plate is rotatably connected to a clamping plate.

[0012] Preferably, the outer wall of the clamping plate is disposed on the outer wall of the sliding shell, the outer wall of the clamping plate is slidably connected to the outer wall of the guide shaft, and the outer end of the guide shaft is fixedly connected to the inner wall of the fixed shell.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the hydraulic rod is activated to drive the moving block to slide, and then the rotating rod slides on the inner wall of the groove to drive the rotating plate to rotate, thereby driving the limiting shaft and the support leg to rotate, achieving the effect of stable support and fast response speed.

[0015] 2. In this utility model, the hydraulic cylinder that fixes the outer wall of the shell is first activated to drive the sliding block to move. Then, the movement of the sliding block drives the rotating plate to rotate, which in turn drives the clamping plate to move on the outer wall of the guide shaft. The clamping plate moves in the center to fix the sliding shell, thereby improving maintenance efficiency and enhancing operational safety. Attached Figure Description

[0016] Figure 1 This is a perspective view of the rocket landing leg deployment mechanism proposed in this utility model;

[0017] Figure 2 This is a partial structural diagram of the support leg of the rocket landing leg deployment mechanism proposed in this utility model;

[0018] Figure 3 This is a partial structural diagram of the sliding shell of the rocket landing leg deployment mechanism proposed in this utility model;

[0019] Figure 4 This is a partial structural diagram of the rotating rod of the rocket landing leg deployment mechanism proposed in this utility model;

[0020] Figure 5 This is a partial structural diagram of the sliding block of the rocket landing leg deployment mechanism proposed in this utility model.

[0021] Legend:

[0022] 1. Outer shell; 2. Sliding shell; 3. Hydraulic rod; 4. Moving block; 5. Rotating rod; 6. Slide groove; 7. Rotating plate; 8. Limiting shaft; 9. Support leg; 10. Rotating shaft; 11. Limiting block; 12. Fixed rod; 13. Spring; 14. Fixed plate; 15. Fixed shell; 16. Hydraulic cylinder; 17. Sliding block; 18. Rotating plate; 19. Clamping plate; 20. Guide shaft. Detailed Implementation

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

[0024] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides an embodiment of a rocket landing leg deployment mechanism, including a shell 1, a sliding shell 2 on the outer wall of the shell 1, a hydraulic rod 3 fixedly connected to the inner wall of the sliding shell 2, a moving block 4 fixedly connected to the output end of the hydraulic rod 3, the outer wall of the moving block 4 slidably connected to the inner wall of the sliding shell 2, the outer wall of the sliding shell 2 slidably connected to the outer wall of the shell 1, a rotating rod 5 rotatably connected to the inner wall of the moving block 4, a groove 6 opened on the outer wall of the sliding shell 2, the outer wall of the rotating rod 5 slidably connected to the inner wall of the groove 6, a rotating plate 7 fixedly connected to the outer wall of the rotating rod 5, a limiting shaft 8 fixedly connected to the outer wall of the rotating plate 7, the outer wall of the limiting shaft 8 rotatably connected to the inner wall of the support leg 9, the outer wall of the limiting shaft 8 being disposed on the outer wall of the sliding shell 2, the inner wall of the support leg 9 rotatably connected to the outer wall of the sliding shell 2, a rotating shaft 10 rotatably connected to the inner wall of the support leg 9, the outer wall of the rotating shaft 10 being fixedly connected to the inner wall of the sliding shell 2, and a limit assembly disposed inside the sliding shell 2.

[0025] Specifically, firstly, the hydraulic rod 3 on the inner wall of the sliding shell 2 is activated, driving the moving block 4 to move. The outer shell 1 restricts the sliding shell 2, ensuring it fits against the outer wall of the outer shell 1 to prevent tilting and errors. The sliding shell 2 also restricts the moving block 4, allowing the hydraulic rod 3 to push it linearly along the inner wall of the sliding shell 2 without deviation. The moving block 4 further restricts the rotating rod 5, causing it to slide within the groove 6 on the sliding shell 2, limiting the range of motion of the rotating rod 5. This ensures that the hydraulic rod 3, through the moving block 4, drives the rotating rod 5 to move at a uniform speed, preventing rotation due to gravity. The rapid movement of rod 5 causes damage to the sliding shell 2. The rotating rod 5 restricts the rotating plate 7, causing the rotating plate 7 to rotate when the rotating rod 5 moves. The rotating rod 5 is affected by the rotating plate 7 and rotates inside the moving block 4 and the slide groove 6. Then, through the rotating plate 7 and the limiting shaft 8, the supporting leg 9 is rotated and unfolded. The sliding shell 2 restricts the supporting leg 9. Before rotation, the inner wall of the supporting leg 9 is elastically attached to the outer wall of the sliding shell 2. When the supporting leg 9 is retracted, the rotation of the supporting leg 9 pushes the rotating rod 5 to slide on the inner wall of the slide groove 6 through the rotating plate 7. The rotating rod 5 moves in the direction of the hydraulic rod 3 and finally becomes parallel to the supporting leg 9 and the sliding shell 2.

[0026] Reference Figure 3 and Figure 3 The limiting component includes a fixed rod 12, the outer end of which is fixedly connected to the inner wall of the sliding shell 2, and a limiting block 11 is rotatably connected to the outer wall of the fixed rod 12; the outer wall of the limiting block 11 is disposed on the outer wall of the rotating rod 5, and a spring 13 is fixedly connected to the outer wall of the limiting block 11; a fixed plate 14 is fixedly connected to the end of the spring 13 away from the limiting block 11, and the outer wall of the fixed plate 14 is fixedly connected to the inner wall of the sliding shell 2;

[0027] Specifically, the limiting block 11 restricts the rotating rod 5. When the rotating rod 5 moves in the direction of the rotating shaft 10, it pushes the limiting block 11 and continues to move. The contact surface between the limiting block 11 and the rotating rod 5 is an inclined plane. When the supporting leg 9 contacts the ground to support the outer shell 1, the rotating rod 5 is subjected to a force from the supporting leg 9 in the direction of the hydraulic rod 3, which drives the rotating rod 5 to move in the direction of the hydraulic rod 3. The rotating rod 5 contacts the limiting block 11 and pushes the limiting block 11 to rotate on the outer wall of the fixed rod 12. The fixed rod 12 rotates and stretches the spring 13. The deformation of the spring 13 resists the rotating rod 5 through a reverse force. The fixed plate 14 constrains the spring 13, and the spring 13 is fixed to the outer wall of the fixed plate 14.

[0028] Reference Figure 1 , Figure 2 and Figure 5A fixed shell 15 is fixedly connected to the outer wall of the outer shell 1, and a hydraulic cylinder 16 is fixedly connected to the upper surface of the fixed shell 15; a sliding block 17 is fixedly provided at the output end of the hydraulic cylinder 16, and the outer wall of the sliding block 17 is slidably connected to the outer wall of the outer shell 1; a rotating plate 18 is rotatably connected to the outer wall of the sliding block 17, and a clamping plate 19 is rotatably connected to the outer wall of the rotating plate 18; the outer wall of the clamping plate 19 is provided on the outer wall of the sliding shell 2, and the outer wall of the clamping plate 19 is slidably connected to the outer wall of the guide shaft 20, and the outer end of the guide shaft 20 is fixedly connected to the inner wall of the fixed shell 15;

[0029] Specifically, the hydraulic cylinder 16, which opens the outer wall of the fixed shell 15, drives the sliding block 17 to move. The outer shell 1 restricts the fixed shell 15, which is fixed to the outer wall of the outer shell 1. The outer shell 1 restricts the sliding block 17, causing the sliding block 17 to slide on the outer wall of the outer shell 1, driving the rotating plate 18 to rotate. This, in turn, causes the clamping plate 19 to move on the outer wall of the guide shaft 20. The fixed shell 15 restricts the guide shaft 20, which is fixed to the inner wall of the fixed shell 15, providing support and guidance for the clamping plate 19. The movement of the clamping plate 19 fixes the sliding shell 2. The restricting mechanism is set at multiple positions inside the fixed shell 15 to fix the sliding shell 2, preventing the sliding shell 2 from shifting and facilitating replacement.

[0030] Working principle: When the rocket needs to be supported, the hydraulic rod 3 on the inner wall of the sliding shell 2 is first activated to push the moving block 4 to move, which in turn drives the rotating rod 5 to move on the inner wall of the slide groove 6. The movement of the rotating rod 5 drives the rotating plate 7 to rotate. The rotating plate 7 drives the limiting shaft 8 to rotate on the inner wall of the support leg 9 and the support leg 9 to rotate and unfold. The support leg 9 rotates on the outer wall of the sliding shell 2 through the rotating shaft 10, thus achieving stable support and fast response speed.

[0031] When it is necessary to quickly disassemble the landing legs, firstly, the hydraulic cylinder 16 on the outer wall of the fixed shell 15 is opened to drive the sliding block 17 to move. Then, the movement of the sliding block 17 drives the rotating plate 18 to rotate, so that the rotation of the rotating plate 18 drives the clamping plate 19 to move on the outer wall of the guide shaft 20. The clamping plate 19 moves in the center to fix the sliding shell 2, thereby improving maintenance efficiency and enhancing operational safety.

[0032] This means that the system not only achieves stable support and fast response, but also improves maintenance efficiency and enhances operational safety.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rocket landing leg deployment mechanism, comprising a shell (1), characterized in that: The outer wall of the outer shell (1) is provided with a sliding shell (2), and a hydraulic rod (3) is fixedly connected to the inner wall of the sliding shell (2). A moving block (4) is fixedly provided at the output end of the hydraulic rod (3). The outer wall of the moving block (4) is slidably connected to the inner wall of the sliding shell (2), and the outer wall of the sliding shell (2) is slidably connected to the outer wall of the outer shell (1). A rotating rod (5) is rotatably connected to the inner wall of the moving block (4). A sliding groove (6) is opened on the outer wall of the sliding shell (2), and the outer wall of the rotating rod (5) is slidably connected to the inner wall of the sliding groove (6). A rotating plate (7) is fixedly connected to the outer wall of the moving rod (5). A limiting shaft (8) is fixedly connected to the outer wall of the rotating plate (7). The outer wall of the limiting shaft (8) is rotatably connected to the inner wall of the support leg (9). The outer wall of the limiting shaft (8) is set on the outer wall of the sliding shell (2). The inner wall of the support leg (9) is rotatably connected to the outer wall of the sliding shell (2). A rotating shaft (10) is rotatably connected to the inner wall of the support leg (9). The outer wall of the rotating shaft (10) is fixedly connected to the inner wall of the sliding shell (2). A limit assembly is provided inside the sliding shell (2).

2. The rocket landing leg deployment mechanism according to claim 1, characterized in that: The limiting component includes a fixing rod (12), the outer end of which is fixedly connected to the inner wall of the sliding shell (2), and a limiting block (11) is rotatably connected to the outer wall of the fixing rod (12).

3. The rocket landing leg deployment mechanism according to claim 2, characterized in that: The outer wall of the limiting block (11) is set on the outer wall of the rotating rod (5), and a spring (13) is fixedly connected to the outer wall of the limiting block (11).

4. The rocket landing leg deployment mechanism according to claim 3, characterized in that: The end of the spring (13) away from the limiting block (11) is fixedly connected to a fixing plate (14), and the outer wall of the fixing plate (14) is fixedly connected to the inner wall of the sliding shell (2).

5. The rocket landing leg deployment mechanism according to claim 1, characterized in that: A fixed shell (15) is fixedly connected to the outer wall of the outer shell (1), and a hydraulic cylinder (16) is fixedly connected to the upper surface of the fixed shell (15).

6. The rocket landing leg deployment mechanism according to claim 5, characterized in that: The output end of the hydraulic cylinder (16) is fixedly provided with a sliding block (17), and the outer wall of the sliding block (17) is slidably connected to the outer wall of the outer shell (1).

7. The rocket landing leg deployment mechanism according to claim 6, characterized in that: The outer wall of the sliding block (17) is rotatably connected to a rotating plate (18), and the outer wall of the rotating plate (18) is rotatably connected to a clamping plate (19).

8. The rocket landing leg deployment mechanism according to claim 7, characterized in that: The outer wall of the clamping plate (19) is disposed on the outer wall of the sliding shell (2), the outer wall of the clamping plate (19) is slidably connected to the outer wall of the guide shaft (20), and the outer end of the guide shaft (20) is fixedly connected to the inner wall of the fixed shell (15).

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