Water entry test device with adjustable launching angle and speed

Abstract

The invention discloses a water entry test device with adjustable launching angle and speed, and belongs to the technical field of launching. The device comprises a supporting device, an adjusting device, a launching device and a water tank device. The supporting device comprises a supporting frame, an upper workbench, a limiting rod, a supporting seat and a base. The adjusting device comprises a hydraulic rod, a transmission rod, an operating rod and a motor; the launching device comprises a barrel, a pressure sensor, a control valve, an air storage chamber and an inflation valve; the water tank device comprises a water tank, and a steel plate and a pine plate which are fixed at the bottom of the water tank. Through improvement and innovation in multiple aspects, the efficiency, precision and safety of artillery inner bore material testing are remarkably improved, and powerful technical support is provided for research, development, optimization and application of an artillery system.

Description

Technical Field

[0001] The invention relates to the field of launching technology, in particular to a water entry test device with adjustable launching angle and speed. Background Art

[0002] The process of projectile entering water is a complex motion process with nonlinearity and strong transients. At present, the research on projectile entering water mainly focuses on vertical entry into water, but vertical entry into water is a simplification of the projectile entering water problem. In practical applications, projectiles enter water at an oblique angle in most cases, which will make the water entry flow field more complicated and affect the ballistic stability of the projectile. Therefore, mastering the ballistic characteristics of projectiles entering water at an oblique angle is of great significance to improving shooting accuracy.

[0003] However, the existing water entry test equipment is difficult to adjust to different water entry angles, and the projectile water entry test at multiple angles requires the processing of special equipment, which not only has poor test efficiency but also greatly increases test costs.

[0004] In view of the above problems, the present invention proposes a water entry test device with adjustable launch angle and speed. Summary of the invention

[0005] 1. Technical Problems to be Solved by the Present Invention

[0006] The purpose of the present invention is to provide a water entry test device with adjustable launch angle and speed to solve the problems raised in the background technology. The present invention adopts hydraulic adjustment technology, abandons the traditional idea of ​​adjusting the water entry angle of the water entry test device, and cleverly solves the problem that the previous experimental device cannot adjust the angle, thereby improving the experimental efficiency and saving the experimental cost.

[0007] 2. Technical solution

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A water entry test device with adjustable launch angle and speed, comprising a supporting device, an adjusting device, a launching device and a water tank device;

[0010] The support device comprises a support frame, an upper workbench, a limiting rod, a support seat and a base; the base is arranged at the bottom of the device body, the support seat is fixedly connected to the top of the base, the upper workbench is arranged above the support seat, the bottom end of the upper workbench is fixedly connected to the top surface of the support seat, and the limiting rod is fixedly connected to the bottom of the support frame;

[0011] The adjusting device comprises a hydraulic rod, a transmission rod, an operating rod and a motor; the top end of the hydraulic rod is rotatably connected to the middle section of the bottom surface of the upper workbench, and the bottom end of the hydraulic rod is rotatably mounted on the transmission rod; the transmission rod is rotatably mounted between the hydraulic rod, the limit rod and the base; the operating rod and the motor are mounted on the top surface of the base;

[0012] The launching device comprises a barrel, a pressure sensor, a control valve, an air storage chamber and an air charging valve; the air storage chamber is connected to the inlet end of the control valve, the air charging valve is arranged on the air storage chamber, the barrel is connected to the outlet end of the control valve, and its tube body is fixed on the support frame, and a pressure sensor is installed at the connection between the barrel and the control valve;

[0013] The water tank device comprises a water tank and a steel plate and a pine board fixed on the bottom of the water tank; the water tank device is arranged on one side of the launching device.

[0014] Preferably, the limit rod is used to limit the working plane of the upper workbench to achieve rotational movement; the hydraulic rod and the motor are used to provide driving force for the rotational movement of the working plane of the upper workbench.

[0015] Preferably, the gas storage volume of the gas storage chamber is 0.8-0.9 L, and the maximum internal air pressure thereof is 30 MPa; the pressure sensor is used to monitor the internal pressure of the gas storage chamber.

[0016] Preferably, the length of the barrel is 1400-1600 mm.

[0017] Preferably, the four walls of the water tank are made of tempered glass; the pine board is used to play a buffering role, and the pine board and the steel plate together play a protective role.

[0018] 3. Beneficial effects

[0019] The present invention designs a water entry test device with adjustable launch angle and speed, including a launch device, an adjustment device, a support device and a water tank device. By extending or contracting a hydraulic rod, the angle between the light gas gun and the horizontal plane can be changed to realize a multi-angle water entry shooting experiment, and different launch initial velocities can be realized by changing the air pressure of the air storage chamber. In addition, the use of the device can reduce the time for adjusting the experimental equipment, effectively improve the work efficiency of the water entry experiment, greatly reduce the experimental cost, and meet the needs of multi-condition water entry experiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the water entry test device with adjustable launch angle and speed mentioned in Example 1 of the present invention when it is placed horizontally;

[0021] Figure 2It is a schematic diagram of the structure of the water entry test device with adjustable launch angle and speed mentioned in Example 1 of the present invention when entering the water at an angle of 45° to the horizontal plane;

[0022] Figure 3 This is a schematic diagram of the structure of the water entry test device with adjustable launch angle and speed mentioned in Example 1 of the present invention when entering the water at an angle of 90° to the horizontal plane.

[0023] Description of the numbers in the figure:

[0024] 1. Support frame; 2. Body; 3. Pressure sensor; 4. Control valve; 5. Air storage chamber; 6. Inflation valve; 7. Upper workbench; 8. Hydraulic rod; 9. Transmission rod; 10. Limit rod; 11. Operating lever; 12. Motor; 13. Support seat; 14. Base; 15. Water tank; 16. Steel plate; 17. Pine board. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0026] Embodiment 1:

[0027] See also Figure 1-3 The present invention provides a water entry test device with adjustable launching angle and speed, which includes a launching device, an adjusting device, a water tank device and a supporting device.

[0028] like Figure 1 As shown, the launching device includes a barrel 2, a pressure sensor 3, a control valve 4, an air storage chamber 5, and an inflation valve 6, wherein the control valve 4 and the air storage chamber 5 are both connected to the upper workbench 7, one end of the support frame 1 is connected to the barrel 2, and the other end is connected to the upper workbench 7 to ensure the limit of the launching device, the end of the barrel 2 is connected to the pressure sensor 3 to ensure that the pressure in the chamber is within a safe range, the air storage chamber 5 is connected to the pressure sensor 3 to facilitate the adjustment of the internal pressure to a specified value, and the inflation valve 6 is connected to the air storage chamber 5 to control the gas flow to increase the gas volume in the air storage chamber 5.

[0029] like Figure 1 As shown, the adjustment device includes a hydraulic rod 8, a transmission rod 9, an operating rod 11 and a motor 12. The upper end of the hydraulic rod 8 is connected to the support frame 1, and the lower end is connected to the transmission rod 9, providing power for the rotation of the upper workbench 7. The transmission rod 9 is installed between the hydraulic rod 8, the limit rod 10 and the base 14 to ensure the rotation and limit of the launch device. The operating rod 11 and the motor 12 are installed on the top surface of the base 14 to adjust the launch angle to a specified value.

[0030] like Figure 1 As shown, the water tank device includes a water tank 15, a steel plate 16 and a pine board 17. The steel plate 16 is placed on the bottom surface of the water tank 15 to prevent the bottom surface of the water tank 15 from being damaged by projectiles. The pine board 17 is placed on the steel plate 16 to play a buffering and protective role.

[0031] like Figure 2 As shown, when the water entry experimental device is launched at 45°, the motor 12 is started and the operating rod 11 is rotated to separate the upper workbench 7 from the support seat 13. The hydraulic rod 8 transmits power to the upper workbench 7, driving the upper workbench 7 to rotate 45° around the bearing between the upper workbench 7 and the limit rod 10. The motor is turned off, the inflation valve 6 is opened, and the air pressure in the air storage chamber 5 is increased to a specified value before the inflation valve 6 is closed. When launching, power is applied to open the control valve 4, and a large amount of gas is released in a short time to launch the projectile.

[0032] like Figure 3 As shown, when the water entry experimental device is launched at 90°, the motor 12 is started and the operating rod 11 is rotated, and then the hydraulic rod 8 transmits power to the upper workbench 7, driving the upper workbench 7 to rotate 90° around the bearing between the limit rod 10, and then the motor is turned off, the inflation valve 6 is opened, and the air pressure in the air storage chamber 5 is increased to a specified value and then the inflation valve 6 is closed. When launching, power is applied to open the control valve 4, and a large amount of gas is released instantly to launch the projectile.

[0033] In summary, the water entry test device with adjustable launch angle and launch speed of the present invention can realize launch at any angle within 0° to 90°, and the maximum launch initial velocity can reach 400m / s. Compared with the existing water entry test device, it not only saves the experimental cost, but also effectively reduces the experimental time. It meets various experimental environments while ensuring safety and reliability, and has good applicability.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and improved concepts of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A water entry test device with adjustable launch angle and speed, characterized in that: It includes a supporting device, an adjusting device, a launching device and a water tank device; The support device comprises a support frame (1), an upper workbench (7), a limiting rod (10), a support seat (13) and a base (14); the base (14) is arranged at the bottom of the device body, the support seat (13) is fixedly connected to the top of the base (14), and the bottom end of the upper workbench (7) is fixedly connected to the top surface of the support seat (13); the limiting rod (10) is fixedly connected to the bottom of the support frame (1). The adjusting device comprises a hydraulic rod (8), a transmission rod (9), an operating rod (11) and a motor (12); the top end of the hydraulic rod (8) is rotatably connected to the middle section of the bottom surface of the support frame (1), and the bottom end of the hydraulic rod (8) is rotatably mounted on the transmission rod (9); the transmission rod (9) is rotatably mounted between the hydraulic rod (8), the limit rod (10) and the base (14); the operating rod (11) and the motor (12) are mounted on the top surface of the base (14). The launching device comprises a barrel (2), a pressure sensor (3), a control valve (4), an air storage chamber (5) and an air charging valve (6); the air storage chamber (5) is connected to the inlet end of the control valve (4), the air charging valve (6) is arranged on the air storage chamber (5), the barrel (2) is connected to the outlet end of the control valve (4), and its tube body is fixed on the support frame (1); the pressure sensor (3) is installed at the connection between the barrel (2) and the control valve (4); The water tank device comprises a water tank (15) and a steel plate (16) and a pine board (17) fixed to the bottom of the water tank (15); the water tank device is arranged on one side of the launching device.

2. A water entry test device with adjustable launch angle and speed according to claim 1, characterized in that: The limiting rod (10) and the supporting seat (13) are used to limit the working plane of the upper working table (7) to achieve rotational movement; the hydraulic rod (8) and the motor (12) are used to provide driving force for the rotational movement of the working plane of the upper working table (7).

3. The water entry test device with adjustable launch angle and speed according to claim 1, characterized in that: The gas storage volume of the gas storage chamber (5) is 0.8-0.9 L, and the maximum internal gas pressure is 30 MPa; the pressure sensor (3) is used to monitor the internal pressure of the gas storage chamber (5).

4. The water entry test device with adjustable launch angle and speed according to claim 1, characterized in that: The length of the barrel (2) is 1400-1600 mm.

5. The water entry test device with adjustable launch angle and speed according to claim 1, characterized in that: The four walls of the water tank (15) are made of tempered glass; the pine board (17) is used to play a buffering role, and the pine board (17) and the steel plate (16) play a protective role together.

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