Parachute opening test device

Abstract

The utility model discloses a parachute opening test device which comprises a tractor, a bearing carriage is installed on the tractor, a supporting base is fixedly installed on the bearing carriage, a parachute dragging mechanism is installed on the supporting base, and the front end of the parachute dragging mechanism is connected with a cross angle adjusting assembly. The cross angle adjusting assembly is connected with three groups of traction cables through three groups of tension detection assemblies, the other ends of the traction cables are all connected with the parachute opening assembly, and a data acquisition device is installed at the head of the tractor. And angle adjustment in four directions can be carried out, so that the traction cable and the tension detection assembly are kept on the same straight line, and the accuracy of data testing is improved.

Description

Technical Field

[0001] This utility model relates to the field of parachute deployment testing technology, and more specifically, to a parachute deployment testing device. Background Technology

[0002] Parachutes are important aerodynamic deceleration devices. Because a parachute is a soft, breathable material, its operation involves various fields, including aerodynamics, structural mechanics, and flight mechanics. Studying such a complex aeroelastic body is extremely difficult. For many years, parachute research has relied on a semi-theoretical, semi-empirical approach, with experimental research remaining the primary method. There is a need to develop a parachute towing test system to fully validate the designed parachute and examine its performance.

[0003] Currently, the main testing methods include aircraft-based drop tests, aircraft-launched booster vehicles, high-altitude balloon-launched test vehicles, ground-launched test vehicles, and artillery-launched ballistic vehicles. Another type is wind tunnel testing, which allows for controlled initial test conditions, precise measurement of performance parameters, recovery and reuse of the test vehicle, and frequent testing. However, both of these testing environments are constrained, meaning that the parachute's velocity decay during deployment is very small. In some cases, it cannot fully simulate real-world conditions, and the angle of its motion is difficult to adjust, making accurate simulation of real-world scenarios challenging.

[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to propose a parachute opening test device.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a parachute opening test device, including a tractor, a carrier box installed on the tractor, a support base fixedly installed on the carrier box, a parachute towing mechanism installed on the support base, a cross angle adjustment component connected to the front end of the parachute towing mechanism, three sets of traction cables connected to the cross angle adjustment component through three sets of tension detection components, the other end of each traction cable being connected to the parachute opening component, and a data acquisition device installed at the front of the tractor.

[0007] Preferably, the parachute towing mechanism includes a lower support platform fixed on a support base, a support arm rotatably connected to the lower support platform via a servo motor, and an extension boom rotatably connected to the other end of the support arm via a servo motor, with a camera mounted on the extension boom.

[0008] Preferably, the cross angle adjustment assembly includes a cross fixing plate, with side support plates fixedly connected to both ends of the cross fixing plate and side connecting plates fixedly connected to the other two ends of the cross fixing plate. The outer walls of the side support plates are all fixedly mounted with drive motors via support columns.

[0009] Preferably, an arc-shaped connecting plate one and an arc-shaped connecting plate two are connected between the side connecting plate and the side support plate. Both arc-shaped connecting plates one and two are provided with arc-shaped grooves. A semi-circular support block is fixedly installed at the center of the cross-shaped fixing plate. A cross-shaped slide is provided on the semi-circular support block. A movable column is provided at the intersection of the arc-shaped grooves. A limiting rolling ball is provided at the bottom of the movable column. A support mounting plate is fixedly connected to the other end of the movable column.

[0010] Preferably, the tension detection assembly includes an inner support cylinder fixed to a support mounting plate, a paracord tension sensor fixedly installed inside the inner support cylinder, and a T-shaped rope fixing bracket connected to the end of the paracord tension sensor.

[0011] Preferably, the parachute deployment assembly includes a parachute ejector, which is fixed inside the carrier vehicle box. The parachute body is installed inside the parachute ejector and is connected to the traction cable.

[0012] Preferably, the data acquisition equipment consists of a weather station and an airspeed tube for monitoring environmental data, and the parachute tension sensor and camera are electrically connected to the data acquisition equipment.

[0013] This utility model provides a parachute deployment testing device, which has the following advantages:

[0014] By installing a carrier box on the tractor, which supports the installation and fixation of the base, the parachute towing mechanism can be installed inside the carrier box. The parachute towing mechanism can be angled, and with the connected cross angle adjustment component, it can be adjusted in four directions after the parachute is opened via a traction cable. This ensures that the traction cable is aligned with the tension detection component to the greatest extent possible, thereby improving the accuracy of the test data. This invention has a simple structure, can be tested under natural environmental conditions, reflects the real situation to the greatest extent, and allows for angle adjustment in four directions to keep the traction cable and tension detection component aligned, thus improving the accuracy of the data test. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a front view of a parachute deployment test device according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the parachute dragging mechanism in a parachute opening test device according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the cross angle adjustment component in a parachute opening test device according to an embodiment of the present utility model;

[0019] Figure 4 This is a structural schematic diagram of the tensile force detection component in a parachute opening test device according to an embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of the parachute opening component in a parachute opening test device according to an embodiment of the present utility model.

[0021] In the picture:

[0022] 1. Tractor; 2. Cargo box; 3. Support base; 4. Parachute towing mechanism; 5. Cross angle adjustment assembly; 6. Tension detection assembly; 7. Traction cable; 8. Parachute opening assembly; 9. Data acquisition equipment; 10. Lower support platform; 11. Servo motor one; 12. Support arm; 13. Servo motor two; 14. Extension boom; 15. Camera; 16. Cross fixing plate; 17. Side support plate; 18. Side connecting plate; 19. Drive motor; 20. Support column; 21. Arc-shaped connecting plate one; 22. Semi-circular support block; 23. Cross slide rail; 24. Movable column; 25. Support mounting plate; 26. Inner support cylinder; 27. Parachute rope tension sensor; 28. T-shaped rope loosening bracket; 29. ​​Parachute ejector; 30. Parachute body. Detailed Implementation

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

[0024] Please see Figure 1-5This utility model provides a parachute deployment testing device, including a tractor 1, a carrier box 2 mounted on the tractor 1, and a support base 3 fixedly mounted on the carrier box 2. The carrier box 2 is used for the installation and fixation of the support base 3. A parachute towing mechanism 4 is mounted on the support base 3. A cross angle adjustment component 5 is connected to the front end of the parachute towing mechanism 4. Three sets of towing cables 7 are connected to the cross angle adjustment component 5 through three sets of tension detection components 6. The support base 3 facilitates the installation of the parachute towing mechanism 4 on the carrier 1. Inside box 2, the parachute towing mechanism 4 can adjust its angle. In conjunction with the connected cross angle adjustment component 5, it can be connected to the parachute opening component 8 via the traction cable 7. After the parachute opens, it can be adjusted in four directions, so that the traction cable 7 can be aligned with the tension detection component 6 to the greatest extent, thereby improving the accuracy of its test data. The other end of the traction cable 7 is connected to the parachute opening component 8. A data acquisition device 9 is installed at the front of the towing vehicle 1. The parachute opening component 8 is used for the ejection and opening of the parachute during the test, and works with the data acquisition device 9 to collect various data.

[0025] In one embodiment, please refer to the appendix to the specification. Figure 2 As shown, the parachute towing mechanism 4 includes a lower support platform 10 fixed on a support base 3. A support arm 12 is rotatably connected to the lower support platform 10 via a servo motor 11. The other end of the support arm 12 is rotatably connected to an extension arm 14 via a servo motor 13. A camera 15 is mounted on the extension arm 14. The servo motor 11 drives the support arm 12 to adjust its angle, while the servo motor 13 drives the extension arm 14 to adjust its angle.

[0026] In one embodiment, please refer to the appendix to the specification. Figure 3 As shown, the cross angle adjustment assembly 5 includes a cross fixing plate 16. Side support plates 17 are fixedly connected to both ends of the cross fixing plate 16, and side connecting plates 18 are fixedly connected to both ends of the cross fixing plate 16. Drive motors 19 are fixedly installed on the outer walls of the side support plates 17 via support columns 20. Arc-shaped connecting plates 11 and 2 are connected between the side connecting plates 18 and the side support plates 17. Arc-shaped grooves are provided on both arc-shaped connecting plates 11 and 2. A semi-circular support block 22 is fixedly installed at the center of the cross fixing plate 16. A cross slide 23 is provided on the semi-circular support block 22. A movable column 24 is provided at the intersection of the arc-shaped grooves. A limiting rolling ball is provided at the bottom of the movable column 24. A support mounting plate 25 is fixedly connected to the other end of the movable column 24. The drive motor 19 drives the corresponding arc-shaped connecting plate 1 21 or arc-shaped connecting plate 2 to rotate. The movable column 24, in conjunction with the arc-shaped groove and the cross slide 23, and the limiting rolling ball as a limit, enables the adjustment of the four angles of the support mounting plate 25.

[0027] In one embodiment, please refer to the appendix to the specification. Figure 4 As shown, the tension detection assembly 6 includes an inner support cylinder 26 fixed on the support mounting plate 25. A paracord tension sensor 27 is fixedly installed inside the inner support cylinder 26, and a T-shaped rope loosening bracket 28 is connected to the end of the paracord tension sensor 27. The T-shaped rope loosening bracket 28 set on the paracord tension sensor 27 is used to connect to one end of the traction cable 7, thereby realizing the monitoring of the tension of the traction cable 7.

[0028] In one embodiment, please refer to the appendix to the specification. Figure 5 As shown, the parachute deployment assembly 8 includes a parachute ejector 29, which is fixed inside the carrier box 2. A parachute body 30 is installed inside the parachute ejector 29 and is connected to the traction cable 7. The parachute ejector 29 houses the parachute body 30 and enables its ejection and deployment; the parachute opens when the traction vehicle 1 moves.

[0029] In one embodiment, please refer to the appendix to the specification. Figure 1 As shown, the data acquisition equipment consists of a weather station and a pitot tube, and the parachute tension sensor 27 and camera 15 are both electrically connected to the data acquisition equipment. The weather station is used to collect environmental data, and the pitot tube senses the total pressure and static pressure of the airflow and transmits the measured pressure data to the computer.

[0030] In practical applications, a carrier box 2 is installed on the tractor 1. The carrier box 2 supports the installation and fixing of the base 3. The support base 3 facilitates the installation of the parachute towing mechanism 4 inside the carrier box 2. The parachute towing mechanism 4 can be angled. With the connection of the cross angle adjustment component 5, after the parachute is opened, it can be adjusted in four directions through the traction cable 7 to make the traction cable 7 as straight as possible with the tension detection component 6, thereby improving the accuracy of the test data. This utility model has a simple structure, can be tested under natural environmental conditions, reflects the real situation to the greatest extent, and can make angle adjustments in four directions to keep the traction cable 7 and the tension detection component 6 in a straight line, thereby improving the accuracy of the data test.

[0031] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A parachute deployment testing device, characterized in that, The vehicle includes a tractor (1), a carrier box (2) is installed on the tractor (1), a support base (3) is fixedly installed on the carrier box (2), a parachute towing mechanism (4) is installed on the support base (3), a cross angle adjustment component (5) is connected to the front end of the parachute towing mechanism (4), three sets of towing cables (7) are connected to the cross angle adjustment component (5) through three sets of tension detection components (6), and the other end of the towing cables (7) is connected to the parachute opening component (8). A data acquisition device (9) is installed at the front of the tractor (1).

2. A parachute deployment testing apparatus according to claim 1, wherein, The parachute towing mechanism (4) includes a lower support platform (10) fixed on a support base (3). A support arm (12) is rotatably connected to the lower support platform (10) via a servo motor (11). The other end of the support arm (12) is rotatably connected to an extension arm (14) via a servo motor (13). A camera (15) is mounted on the extension arm (14).

3. A parachute deployment testing apparatus according to claim 2, wherein, The cross angle adjustment assembly (5) includes a cross fixing plate (16), with side support plates (17) fixedly connected to one end of the cross fixing plate (16) and side connecting plates (18) fixedly connected to the other end of the cross fixing plate (16). The outer walls of the side support plates (17) are all fixedly mounted with drive motors (19) via support columns (20).

4. A parachute deployment testing apparatus according to claim 3, wherein, Arc-shaped connecting plate one (21) and arc-shaped connecting plate two are connected between the side connecting plate (18) and the side support plate (17). Arc-shaped strip grooves are provided on both arc-shaped connecting plate one (21) and arc-shaped connecting plate two. A semi-circular support block (22) is fixedly installed at the center of the cross fixing plate (16). A cross slide (23) is provided on the semi-circular support block (22). A movable column (24) is provided at the intersection of the arc-shaped strip grooves. A limiting rolling ball is provided at the bottom of the movable column (24). A support mounting plate (25) is fixedly connected to the other end of the movable column (24).

5. A parachute deployment testing apparatus according to claim 4, wherein, The tension detection assembly (6) includes an inner support cylinder (26) fixed on a support mounting plate (25), a paracord tension sensor (27) is fixedly installed inside the inner support cylinder (26), and a T-shaped rope fixing bracket (28) is connected to the end of the paracord tension sensor (27).

6. A parachute deployment testing apparatus according to claim 5, wherein, The parachute assembly (8) includes a parachute ejector (29), which is fixed inside the carrier box (2). The parachute ejector (29) has a parachute body (30) installed inside it, and the parachute body (30) is connected to the traction cable (7).

7. A parachute deployment testing apparatus according to claim 6, wherein, The data acquisition equipment consists of a weather station and an airspeed tube for monitoring environmental data, and the parachute tension sensor (27) and camera (15) are electrically connected to the data acquisition equipment.

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