A model cushion capture device for land based vertical ejection testing

Abstract

This invention relates to a model buffer and capture device for land-based vertical catapult tests. The device, used to capture a model, includes a damping system and a capture system. The damping system absorbs energy and buffers during the capture process. The capture system, mounted on the damping system, includes a capture support with a buffer net at its top and a gripper system below the net for clamping and securing the model. A photoelectric proximity switch is also mounted on the capture support; when the switch detects an object passing through, it sends an electrical signal to control the gripper system. A launch tube, vertically positioned below the capture system, launches the model. This invention enables capture in vertical land-based catapult tests, allowing for safe, damage-free, and efficient model recovery after launch, thus improving test efficiency. The buffer system significantly reduces the load on the grippers during model capture, enhancing the overall system reliability.

Description

Technical Field

[0001] This invention relates to the field of underwater launch test technology, and in particular to a model buffer capture device for land-based vertical catapult tests. Background Technology

[0002] The internal ballistic process is a crucial initial stage for underwater launches, and land-based testing is an efficient technique for conducting such tests. During land-based launches, the model is typically tilted, and a buffer device is placed on the ground for model recovery.

[0003] However, the forces of gravity and friction differ when tilted compared to when vertical, and there is a risk of damage to the ground recovery model and internal testing equipment.

[0004] Therefore, we propose a model buffer capture device for land-based vertical catapult tests. Summary of the Invention

[0005] In response to the shortcomings of the existing production technology, the applicant provides a model buffer capture device for land vertical catapult tests, which enables the capture of models in vertical land catapult tests, allowing for safe, damage-free, and efficient recovery of the models after launch, thus improving test efficiency. Through the buffer system, the load on the grippers when capturing the models is significantly reduced, thereby improving the reliability of the entire system.

[0006] The technical solution adopted in this invention is as follows:

[0007] A model buffer capture device for land-based vertical catapult tests, used to capture a model, comprising:

[0008] Damping systems are used for energy absorption and buffering during the capture process;

[0009] The capture system is mounted on the damping system. The capture system includes a capture bracket with a buffer net on top and a gripper system below the buffer net for gripping and fixing the model. The capture bracket is also equipped with a photoelectric proximity switch. When the photoelectric proximity switch detects an object passing through, it can give an electrical signal to control the gripper system to work.

[0010] The launch tube, vertically positioned below the capture system, is used to launch the model.

[0011] Its further features are:

[0012] The damping system includes multiple viscous dampers, one end of which is fixed to the ground, and the other end of which is fixedly connected to the capture bracket via a mounting bracket.

[0013] The gripper system is provided in two symmetrical configurations for gripping and fixing the model.

[0014] The gripper system includes a cylinder, and a gripper is mounted on the front end of the cylinder's telescopic rod.

[0015] The cylinder's telescopic rod passes through the shaft support.

[0016] The cylinder is connected to a high-pressure gas cylinder via a gas pipeline, and a solenoid valve is installed on the gas pipeline.

[0017] The photoelectric proximity switch and the gripper system are on the same plane.

[0018] The viscous damper is provided in four parts, which are spaced apart.

[0019] The beneficial effects of this invention are as follows:

[0020] This invention features a compact and rational structure, and is easy to operate. During the catapult test, the capture system is in its initial position. The model is launched through the launch tube. When the model moves to the photoelectric proximity switch, the switch sends an electrical signal, controlling the solenoid valve to open. The gripper then engages to grasp the model. Subsequently, the capture system and the model move upward together, decelerating and stopping under the action of the damping system. Then, under the action of gravity, the model slowly falls back to the initial position. The vent valve of the cylinder is opened, allowing the gripper to release the model, which can then be reloaded for repeated tests. Furthermore, the vertically positioned launch tube enables capture in vertical land-based catapult tests, ensuring safe, damage-free, and efficient model recovery after launch, thus improving test efficiency. Simultaneously, the presence of the buffer system significantly reduces the load on the gripper when capturing the model, improving the overall reliability of the system.

[0021] In addition, the present invention also has the following advantages:

[0022] (1) The damping system is used for energy absorption and buffering during the capture process. The presence of the buffering system significantly reduces the load on the gripper when capturing the model, thus improving the reliability of the entire system.

[0023] (2) A buffer net is set on the top of the capture bracket to prevent the model from overshooting and to provide safety protection.

[0024] (3) The photoelectric proximity switch is installed on the capture bracket and is in the same plane as the gripper. When a model passes through, the photoelectric proximity switch gives an electrical signal to control the opening of the solenoid valve. The gas in the high-pressure gas cylinder enters the cylinder through the gas pipeline. The cylinder drives the gripper to move, so that the grippers on both sides can clamp and fix the model. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention.

[0026] Figure 2This is a schematic diagram of the capture system of the present invention.

[0027] Figure 3 This is a schematic diagram of the gripper system of the present invention.

[0028] Figure 4 This is a schematic diagram of the capture process of the present invention.

[0029] The components include: 1. Viscous damper; 2. Mounting bracket; 3. Capture bracket; 4. Cylinder; 5. Shaft support; 6. Gripper; 7. High-pressure gas cylinder; 8. Gas pipeline; 9. Solenoid valve; 10. Photoelectric proximity switch; 11. Buffer net; 12. Model; 13. Launch tube. Detailed Implementation

[0030] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0031] like Figures 1-4 As shown, a model buffer capture device for land-based vertical catapult tests includes a damping system and a capture system, with the capture system mounted on the damping system.

[0032] The damping system includes multiple viscous dampers 1, one end of which is fixed to the ground, and the other end of which supports the capture system. There can be four, five, or other viscous dampers 1. The damping system is used for energy absorption and buffering during the capture process.

[0033] A launch tube 13 is set below the capture system to launch the model 12. The launch tube 13 is set vertically.

[0034] The capture system includes a capture bracket 3, a gripper system, and a buffer net 11. The capture bracket 3 is mounted on the viscous damper 1 via a mounting bracket 2, and multiple viscous dampers 1 are spaced apart. The buffer net 11 is located on top of the capture bracket 3.

[0035] The gripper system is mounted on the capture bracket 3 and located below the buffer net 11. Two gripper systems are provided, symmetrically arranged, for gripping and fixing the model 12. The gripper system includes a high-pressure gas cylinder 7, a solenoid valve 9, a gas pipeline 8, and grippers 6. The high-pressure gas cylinder 7 is connected to the cylinder 4 via the gas pipeline 8, which is equipped with the solenoid valve 9. The telescopic rod of the cylinder 4 passes through the shaft support 5, and grippers 6 are mounted at the front end of the telescopic rod. A photoelectric proximity switch 10 is mounted on the capture bracket 3 and is in the same plane as the grippers 6. When a model 12 passes through, the photoelectric proximity switch 10 provides an electrical signal, controlling the opening of the solenoid valve 9. Gas from the high-pressure gas cylinder 7 enters the cylinder 4 through the gas pipeline 8, causing the cylinder 4 to move the grippers 6, thus gripping and fixing the model 12. The buffer net 11 prevents the model 12 from overshooting, providing safety protection.

[0036] Figure 4 In the middle, from left to right, are a schematic diagram of the launch tube 13 just launching the model 12, a schematic diagram of the gripper system clamping and fixing the model 12 at its highest point, and a schematic diagram of the gripper system clamping and fixing the model 12 and falling back to its initial position under the action of gravity.

[0037] During the catapult test, the capture system is in its initial position. Model 12 is launched through launch tube 13. When model 12 moves to the photoelectric proximity switch 10, the switch sends an electrical signal, controlling the solenoid valve 9 to open. The gripper 6 then engages to grasp model 12. The capture system and model 12 then move upwards together, decelerating and stopping under the action of the damping system. Under gravity, they slowly descend back to the initial position. The vent valve of cylinder 4 is then opened, allowing the gripper 6 to release model 12, enabling reloading and facilitating repeated tests. Furthermore, the vertically positioned launch tube 13 allows for capture in vertical land-based catapult tests, ensuring safe, damage-free, and efficient recovery of model 12 after launch, thus improving test efficiency. Simultaneously, the buffer system significantly reduces the load on the gripper 6 when capturing model 12, enhancing the overall system reliability.

[0038] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. A model cushion capture device for a land-based vertical ejection test for capturing a model (12), characterized in that, include: Damping systems are used for energy absorption and buffering during the capture process; The capture system is set on the damping system. The capture system includes a capture bracket (3), a buffer net (11) is set on the top of the capture bracket (3), and a gripper system is set below the buffer net (11) for gripping and fixing the model (12). A photoelectric proximity switch (10) is also set on the capture bracket (3). When the photoelectric proximity switch (10) detects that an object passes through, it can give an electrical signal to control the gripper system to work. The launch tube (13) is vertically positioned below the capture system and is used to launch the model (12).

2. A model cushioned capture device for land-based vertical ejection testing as in claim 1, wherein: The damping system includes multiple viscous dampers (1), one end of which is fixed to the ground, and the other end of which is fixedly connected to the capture bracket (3) via a mounting bracket (2).

3. The model buffer capture device for land-based vertical catapult tests as described in claim 1, characterized in that: The gripper system is provided in two symmetrically arranged, and is used to grip and fix the model (12).

4. The model buffer capture device for land-based vertical catapult tests as described in claim 3, characterized in that: The gripper system includes a cylinder (4), and a gripper (6) is installed at the front end of the telescopic rod of the cylinder (4).

5. The model buffer capture device for land-based vertical catapult tests as described in claim 4, characterized in that: The telescopic rod of the cylinder (4) passes through the shaft support 5.

6. The model buffer capture device for land-based vertical catapult tests as described in claim 4, characterized in that: The cylinder (4) is connected to the high-pressure gas cylinder (7) through the gas pipeline (8), and a solenoid valve (9) is installed on the gas pipeline (8).

7. A model buffer capture device for land-based vertical catapult tests as described in claim 1, characterized in that: The photoelectric proximity switch (10) and the gripper system are on the same plane.

8. A model buffer capture device for land-based vertical catapult tests as described in claim 2, characterized in that: Four viscous dampers (1) are provided, and the four viscous dampers (1) are arranged at intervals.

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