阅读说明：本技术 一种用于气炮发射的新型高压释放装置 (Novel high-pressure releasing device for gas gun launching ) 是由 薛一江 吴昊 吴应祥 于 2020-12-31 设计创作，主要内容包括：本发明公开一种用于气炮发射的新型高压释放装置,包括高压气室,其包括高压主气室和安装在高压主气室内的高压副气室；注气管路,其包括与高压主气室连接的第一注气管路和与高压副气室连接的第二注气管路；发射管,其与高压主气室连接；液压装置,其安装在高压副气室内；高压控制系统,其分别与注气管路和液压装置连接；高压副气室内设有限位环和进气孔,当发射载荷与限位环抵接时,进气孔处于封堵状态,当发射载荷与限位环分离时,进气孔处于通气状态。本发明采用一种新型结构完成气炮高压气体的释放,兼有高速阀门排气的可操作性与破膜排气的优秀性能,无需使用膜片,重复性较好,具有低造价、易操作维护和低发射成本等优点。(The invention discloses a novel high-pressure release device for gas gun launching, which comprises a high-pressure air chamber, a high-pressure gas gun body and a high-pressure gas gun body, wherein the high-pressure air chamber comprises a high-pressure main air chamber and a high-pressure auxiliary air chamber arranged in the high-pressure main air chamber; the gas injection pipeline comprises a first gas injection pipeline connected with the high-pressure main gas chamber and a second gas injection pipeline connected with the high-pressure auxiliary gas chamber; a launch tube connected to the high pressure main plenum; a hydraulic device installed in the high-pressure sub-chamber; the high-pressure control system is respectively connected with the gas injection pipeline and the hydraulic device; a limiting ring and an air inlet hole are arranged in the high-pressure auxiliary air chamber, when the emission load is abutted to the limiting ring, the air inlet hole is in a blocking state, and when the emission load is separated from the limiting ring, the air inlet hole is in a ventilation state. The invention adopts a novel structure to complete the release of high-pressure gas of the gas gun, has the operability of high-speed valve exhaust and the excellent performance of membrane breaking exhaust, does not need to use a membrane, has better repeatability, and has the advantages of low manufacturing cost, easy operation and maintenance, low launching cost and the like.)

1. A novel high pressure release device for gas gun firing, comprising:

a high-pressure air chamber (1) which comprises a high-pressure main air chamber (11) and a high-pressure auxiliary air chamber (12) arranged in the high-pressure main air chamber (11);

an air injection line (2) comprising a first air injection line (21) connected to the high-pressure main air chamber (11) and a second air injection line (22) connected to the high-pressure auxiliary air chamber (12);

the launching tube (3) is connected with the high-pressure main air chamber (11), and one end, close to the launching tube (3), of the high-pressure main air chamber (11) is of a conical structure;

the hydraulic device (4) is connected with one end, far away from the launching tube (3), of the high-pressure auxiliary air chamber (12) and is used for driving a launching load (100) with one end positioned in the launching tube (3) and the other end positioned in the high-pressure auxiliary air chamber (12) to move;

a high-pressure control system (5) connected to the gas injection line (2) and the hydraulic device (4), respectively;

a limiting ring (121) is arranged in the high-pressure auxiliary air chamber (12), an air inlet hole (122) is formed in the side wall of the high-pressure auxiliary air chamber (12), when the launching load (100) is abutted to the limiting ring (121), the air inlet hole (122) is in a sealing state, and when the launching load (100) is separated from the limiting ring (121), the air inlet hole (122) is in a ventilation state.

2. The novel high-pressure release device for air cannon firing according to claim 1, characterized in that the high-pressure auxiliary air chamber (12) is of a straight cylinder structure, and a guide ring (123) is further arranged at one end of the high-pressure auxiliary air chamber (12) adjacent to the firing tube (3), wherein the guide ring (123) is of a wedge structure.

3. The new high pressure relief device for gas gun firing according to claim 1, characterized in that the first gas injection line (21) comprises a first gas injection pipe (211) connected to the high pressure main gas chamber (11) and the high pressure control system (5), respectively, and a first gas injection valve (212) mounted on the first gas injection pipe (211), the first gas injection valve (212) being used to control the on-off of the first gas injection pipe (211).

4. The new high pressure relief device for air cannon firing according to claim 1, characterized in that the second gas injection line (22) comprises a second gas injection pipe (221) connected to the high pressure sub-chamber (12) and the high pressure control system (5), respectively, and a second gas injection valve (222) mounted on the second gas injection pipe (221), the second gas injection valve (222) being used to control the on-off of the second gas injection pipe (221).

5. The novel high-pressure release device for air gun firing according to claim 2, characterized in that the hydraulic device (4) comprises a hydraulic cylinder (41) installed at one end of the high-pressure auxiliary air chamber (12) far away from the guide ring (123), a piston (42) connected with the hydraulic cylinder (41), a hydraulic oil path (43) respectively connected with the high-pressure control system (5) and the hydraulic cylinder (41), and an oil path valve (44) installed on the hydraulic oil path (43), wherein the piston (42) is located in the high-pressure auxiliary air chamber (12) and is in sealing contact with the inner wall of the high-pressure auxiliary air chamber (12), and the oil path valve (44) is used for controlling the on-off of the hydraulic oil path (43).

6. The novel high-pressure relief device for gas gun firing according to claim 5, wherein the hydraulic circuit (43) includes a first high-pressure pipe oil circuit (431) and a second high-pressure pipe oil circuit (432) connected to the hydraulic cylinder (41), respectively, the oil circuit valve (44) includes a first oil circuit solenoid valve (441) installed on the first high-pressure pipe oil circuit (431) and a second oil circuit solenoid valve (442) installed on the second high-pressure pipe oil circuit (432), the first oil circuit solenoid valve (441) is configured to control the piston (42) to move toward a direction close to the retainer ring (121), and the second oil circuit solenoid valve (442) is configured to control the piston (42) to move toward a direction away from the retainer ring (121).

7. The novel high-pressure release device for air cannon firing according to any one of claims 1 to 6, characterized in that the firing load (100) comprises a sabot (110), a projectile (120) mounted in the sabot (110) and protruding from one end of the sabot (110) far away from the high-pressure air chamber (1), and a bandolier (130) mounted on the periphery of the sabot (110), wherein the outer diameter of the bandolier (130) is larger than the inner diameter of the launching tube (3), and the pressure of the bandolier (130) extruding into the high-pressure main air chamber (11) is not more than 20 MPa.

8. The new high pressure relief device for gas cannon firing according to any of the claims 1 to 6, characterized by the fact that the taper of the end of the high pressure main air chamber (11) close to the firing tube (3) is comprised between 40 ° and 60 °.

9. The new high pressure relief device for gas cannon firing according to any of the claims 1 to 6, characterized in that the working pressure of the high pressure main air chamber (11) and the high pressure auxiliary air chamber (12) is not more than 30 MPa.

10. The new high pressure relief device for gas cannon firing according to any of the claims 1 to 6, characterized by the fact that the working pressure of the hydraulic device (4) is not greater than 50 MPa.

Technical Field

The invention relates to the technical field of material and structure dynamics experiments, in particular to a novel high-pressure release device for gas gun launching.

Background

The air cannon is generally composed of a high-pressure air chamber, a high-pressure release device, a launching tube and other parts, and is an important experimental device in the field of material and structure dynamics. The performance and operability of the high-pressure release device directly determine the launching speed and the working efficiency of the gas cannon. There are two types of high pressure gas release commonly used at present: a high speed valve exhaust; the other is membrane rupture and air exhaust. The opening time of the valve body is in the order of ms, which is much longer than the time for breaking the membrane and releasing pressure, so the performances of the two are greatly different.

Under the driving condition of high-pressure nitrogen, the high-speed valve can exhaust gas at 600m/s, and the membrane breaking exhaust gas can reach more than 800 m/s. Under the driving condition of high-pressure helium, the difference between the two is more obvious, the former can reach 1000m/s, and the latter can reach 1500 m/s. Although the performance of high-speed valve exhaust is not as good as that of membrane rupture exhaust, the high-speed valve exhaust does not need a membrane from the aspect of operability, and the working efficiency and the emission cost are superior to those of membrane rupture exhaust. In the actual use process, because membranes with different specifications are required to be configured according to the launching pressure in the membrane breaking and air exhausting process, the air injection process is complex, and the launching cost and the management cost are increased. Some units are often equipped with both high pressure release devices, with high speed valve venting for medium and low speed areas and rupture venting for high speed areas.

In the field of material and structure dynamics, for anisotropic materials, the size of the model often has a great influence on the experimental results. With the development of experimental technology, the demand for large-caliber air cannons with the diameter of 100mm or even more than 200mm is increasing. In this case, the cost of the high-speed valve exhaust release device increases in geometric steps with increasing caliber. Since a certain gas working pressure is required for the valve to open quickly, the repeatability is often poor in a speed section less than 100 m/s. In the high speed section, the large size of the membrane also significantly increases the launch cost.

Disclosure of Invention

The invention aims to provide a novel high-pressure release device for gas gun launching, which covers two launching speed ranges of high-speed valve exhaust and membrane rupture exhaust, and has the advantages of high launching efficiency, low manufacturing cost, easiness in operation and maintenance, low launching cost and the like.

In order to achieve the purpose, the invention adopts the following technical scheme:

the novel high-pressure release device for launching the gas gun comprises a high-pressure air chamber, a high-pressure gas source and a high-pressure gas source, wherein the high-pressure air chamber comprises a high-pressure main air chamber and a high-pressure auxiliary air chamber arranged in the high-pressure main air chamber;

the gas injection pipeline comprises a first gas injection pipeline connected with the high-pressure main gas chamber and a second gas injection pipeline connected with the high-pressure auxiliary gas chamber;

the launching tube is connected with the high-pressure main air chamber, and one end of the high-pressure main air chamber, which is close to the launching tube, is of a conical structure;

the hydraulic device is connected with one end of the high-pressure auxiliary air chamber, which is far away from the launching tube, and is used for driving the launching load with one end positioned in the launching tube and the other end positioned in the high-pressure auxiliary air chamber to move;

the high-pressure control system is respectively connected with the gas injection pipeline and the hydraulic device;

a limiting ring is arranged in the high-pressure auxiliary air chamber, an air inlet is formed in the side wall of the high-pressure auxiliary air chamber, when the launching load is abutted to the limiting ring, the air inlet is in a blocking state, and when the launching load is separated from the limiting ring, the air inlet is in a ventilation state.

As a preferred scheme of the novel high-pressure release device for air gun launching, the high-pressure auxiliary air chamber is of a straight cylinder type structure, a guide ring is further arranged at one end, close to the launching tube, of the high-pressure auxiliary air chamber, and the guide ring is of a wedge-shaped structure.

As a preferable scheme of the novel high-pressure release device for gas gun launching, the first gas injection pipeline comprises a first gas injection pipeline connected with the high-pressure main gas chamber and the high-pressure control system respectively and a first gas injection valve installed on the first gas injection pipeline, and the first gas injection valve is used for controlling the on-off of the first gas injection pipeline.

As a preferable scheme of the novel high-pressure release device for gas gun launching, the second gas injection pipeline comprises a second gas injection pipeline connected with the high-pressure auxiliary gas chamber and the high-pressure control system respectively and a second gas injection valve installed on the second gas injection pipeline, and the second gas injection valve is used for controlling the on-off of the second gas injection pipeline.

As an optimal scheme of a novel high-pressure release device for gas gun launching, the hydraulic device comprises a hydraulic cylinder, a piston, a hydraulic oil way and an oil way valve, wherein the hydraulic cylinder is arranged at one end, far away from the guide ring, of the high-pressure auxiliary air chamber, the piston is connected with the hydraulic cylinder, the hydraulic oil way is connected with the high-pressure control system and the hydraulic cylinder, the oil way valve is arranged on the hydraulic oil way, the piston is arranged in the high-pressure auxiliary air chamber and is in sealing contact with the inner wall of the high-pressure auxiliary air chamber, and the oil way valve is used for controlling the on.

As an optimal scheme of a novel high-pressure release device for gas gun launching, the hydraulic oil way comprises a first high-pressure pipe oil way and a second high-pressure pipe oil way which are respectively connected with the hydraulic cylinder, the oil way valve comprises a first oil way electromagnetic valve arranged on the first high-pressure pipe oil way and a second oil way electromagnetic valve arranged on the second high-pressure pipe oil way, the first oil way electromagnetic valve is used for controlling the piston to move towards the direction close to the limit ring, and the second oil way electromagnetic valve is used for controlling the piston to move towards the direction far away from the limit ring.

As a preferred scheme of the novel high-pressure release device for air gun launching, the launching load comprises a bullet support, a launching bullet which is arranged in the bullet support and protrudes out of the bullet support and is far away from one end of the high-pressure air chamber, and a bullet belt which is arranged on the periphery of the bullet support, the outer diameter of the bullet belt is larger than the inner diameter of the launching tube, and the pressure of the bullet belt which is extruded into the high-pressure main air chamber is not more than 20 MPa.

As a preferable scheme of the novel high-pressure release device for launching the air cannon, the taper of one end, close to the launching tube, of the high-pressure main air chamber is 40-60 degrees.

As a preferable scheme of the novel high-pressure release device for launching the air cannon, the working pressure of the high-pressure main air chamber and the working pressure of the high-pressure auxiliary air chamber are not more than 30 MPa.

As a preferable scheme of the novel high-pressure release device for the launching of the air cannon, the working pressure of the hydraulic device is not more than 50 MPa.

The invention has the beneficial effects that:

(1) the invention adopts a novel structure to complete the release of high-pressure gas of the gas gun, has the operability of high-speed valve exhaust and the excellent performance of membrane breaking exhaust, does not need to use a membrane, has better repeatability, and has the advantages of high emission efficiency, low manufacturing cost, easy operation and maintenance, low emission cost and the like.

(2) The invention adopts a double-air-chamber design, wherein the high-pressure auxiliary air chamber can be independently used to meet the launching requirement within the speed of 100m/s, and the joint of the high-pressure main air chamber and the launching tube adopts a conical surface design, so that the bullet bottom pressure can be improved, and the initial acceleration and the final outlet speed of the launching load can be further improved.

(3) Compared with the high-speed valve exhaust, the driving mode has the same operability, is simpler in structure, reduces the cost by 1/3 and improves the performance by 50%.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural diagram of a novel high-pressure release device for air cannon launching according to an embodiment of the invention before launching.

FIG. 2 is a schematic structural diagram of a gas injection pipe for filling a high pressure chamber according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a hydraulic cylinder according to an embodiment of the present invention when the hydraulic cylinder pushes the piston to move forward.

Fig. 4 is a schematic structural view of the launch load separated from the stop collar according to an embodiment of the present invention.

Fig. 5 is a schematic view of the structure of the present invention when the launch load is separated from the guide ring.

Fig. 6 is a schematic structural diagram of a hydraulic cylinder according to an embodiment of the present invention when the hydraulic cylinder pushes the piston to move backward.

In fig. 1 to 6:

1. a high pressure gas chamber; 11. a high pressure main air chamber; 12. a high-pressure auxiliary air chamber; 121. a limiting ring; 122. an air inlet; 123. a guide ring;

2. an air injection pipeline; 21. a first gas injection line; 211. a first gas injection pipe; 212. a first gas injection valve; 22. a second gas injection line; 221. a second gas injection pipe; 222. a second gas injection valve;

3. a launch tube;

4. a hydraulic device; 41. a hydraulic cylinder; 42. a piston; 43. a hydraulic oil circuit; 431. a first high-pressure pipe oil path; 432. a second high-pressure pipe oil path; 44. an oil way valve; 441. a first oil path solenoid valve; 442. a second oil path solenoid valve;

5. a high voltage control system;

100. launching the load; 110. carrying out cartridge support; 120. shooting a bullet; 130. a belt.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the novel high-pressure release device for firing a gas gun in the embodiment of the invention comprises a high-pressure air chamber 1, which comprises a high-pressure main air chamber 11 and a high-pressure auxiliary air chamber 12 arranged in the high-pressure main air chamber 11;

an air injection line 2 including a first air injection line 21 connected to the high-pressure main chamber 11 and a second air injection line 22 connected to the high-pressure sub-chamber 12;

the launching tube 3 is connected with the high-pressure main air chamber 11, and one end of the high-pressure main air chamber 11, which is close to the launching tube 3, is of a conical structure;

the hydraulic device 4 is connected with one end of the high-pressure auxiliary air chamber 12 far away from the launching tube 3 and is used for driving the launching load 100 with one end positioned in the launching tube 3 and the other end positioned in the high-pressure auxiliary air chamber 12 to move;

a high-pressure control system 5 connected to the gas injection pipeline 2 and the hydraulic device 4, respectively;

a limiting ring 121 is arranged in the high-pressure auxiliary air chamber 12, an air inlet hole 122 is arranged on the side wall of the high-pressure auxiliary air chamber 12, when the emission load 100 abuts against the limiting ring 121, the air inlet hole 122 is in a sealing state, and when the emission load 100 is separated from the limiting ring 121, the air inlet hole 122 is in a ventilation state.

The embodiment adopts a double-air-chamber design, the high-pressure air chamber 1 consists of a high-pressure main air chamber 11 and a high-pressure auxiliary air chamber 12, wherein the high-pressure auxiliary air chamber 12 can be independently used, and the emission requirement within the speed of 100m/s is met; when the high-pressure gas gun is used in a combined mode, the gas injection pipeline 2 is controlled by the high-pressure control system 5 to inject gas into the high-pressure gas chamber 1, the hydraulic device 4 compresses the gas in the high-pressure auxiliary gas chamber 12, when the pressure in the high-pressure auxiliary gas chamber 12 exceeds the squeezing pressure of the launching load 100, the launching load 100 moves forwards, at the moment, the gas in the high-pressure main gas chamber 11 enters the high-pressure auxiliary gas chamber 12 through the gas inlet 122 to further push the launching load 100, when the launching load 100 is separated from the high-pressure auxiliary gas chamber 12, the high-pressure gas in the high-pressure main gas chamber 11 drives the launching load 100 to enter the launching tube 3 through conical surface compression to complete the whole action, compared with high-speed valve exhausting and membrane breaking exhausting, the high-pressure gas gun in the embodiment adopts a novel structure to complete the releasing of the high-pressure gas of the gas gun, the operability of high-speed valve exhausting and the excellent performance of membrane, the projectile bottom pressure can be improved, the initial acceleration and the final outlet speed of the launching load 100 are further improved, and the projectile bottom pressure control projectile has the advantages of being high in launching efficiency, low in manufacturing cost, easy to operate and maintain, low in launching cost and the like.

Specifically, the high-pressure auxiliary air chamber 12 is of a straight cylinder structure, and a guide ring 123 is further arranged at one end of the high-pressure auxiliary air chamber 12, which is close to the launch tube 3, and the guide ring 123 is of a wedge-shaped structure.

Specifically, the first gas injection pipeline 21 includes a first gas injection pipeline 211 connected to the high-pressure main gas chamber 11 and the high-pressure control system 5, and a first gas injection valve 212 mounted on the first gas injection pipeline 211, and the first gas injection valve 212 is configured to control the on/off of the first gas injection pipeline 211.

Specifically, the second gas injection pipeline 22 includes a second gas injection pipeline 221 connected to the high-pressure sub-chamber 12 and the high-pressure control system 5, and a second gas injection valve 222 mounted on the second gas injection pipeline 221, wherein the second gas injection valve 222 is configured to control on/off of the second gas injection pipeline 221.

Specifically, the hydraulic device 4 comprises a hydraulic cylinder 41 arranged at one end of the high-pressure auxiliary air chamber 12 far away from the guide ring 123, a piston 42 connected with the hydraulic cylinder 41, a hydraulic oil path 43 respectively connected with the high-pressure control system 5 and the hydraulic cylinder 41, and an oil path valve 44 arranged on the hydraulic oil path 43, wherein the piston 42 is arranged in the high-pressure auxiliary air chamber 12 and is in sealing contact with the inner wall of the high-pressure auxiliary air chamber 12, and the oil path valve 44 is used for controlling the on-off of the hydraulic oil path 43.

The invention adopts the hydraulic cylinder 41 to compress the gas in the high-pressure auxiliary air chamber 12, the launching load 100 moves forwards under the drive of the high-pressure gas, and compared with the high-speed valve exhaust, the driving mode has the same operability, the structure is simpler, the cost is reduced by 1/3, and the performance is improved by 50%.

More specifically, the hydraulic oil passage 43 includes a first high-pressure pipe oil passage 431 and a second high-pressure pipe oil passage 432 that are connected to the hydraulic cylinder 41, respectively, and the oil valve 44 includes a first oil passage solenoid valve 441 mounted on the first high-pressure pipe oil passage 431 and a second oil passage solenoid valve 442 mounted on the second high-pressure pipe oil passage 432, the first oil passage solenoid valve 441 being configured to control the piston 42 to move toward a direction close to the retainer ring 121, and the second oil passage solenoid valve 442 being configured to control the piston 42 to move toward a direction away from the retainer ring 121.

Specifically, the launch load 100 comprises a bullet holder 110, a launch bullet 120 which is arranged in the bullet holder 110 and protrudes out of one end of the bullet holder 110, which is far away from the high-pressure air chamber 1, and a bullet belt 130 which is arranged on the periphery of the bullet holder 110, wherein the outer diameter of the bullet belt 130 is larger than the inner diameter of the launch tube 3, the tail of the bullet holder 110 is arranged at the head of the high-pressure auxiliary air chamber 12 through a guide ring 123, the bullet belt 130 is arranged at the joint of the high-pressure main air chamber 11 and the launch tube 3, the head of the bullet holder 110 is arranged in the launch tube 3, and the pressure of the bullet belt 130 extruding into the high.

Preferably, the material of the sabot 110 is high molecular weight polyethylene and the material of the bandolier 130 is rubber.

Preferably, the high pressure main air chamber 11 has a taper of 40 to 60 ° at an end thereof adjacent to the emitter tube 3.

Preferably, the high-pressure main air chamber 11 works with high-pressure nitrogen or helium through the first gas injection line 21, with a working pressure not greater than 30 MPa; the high-pressure auxiliary air chamber 12 works by using high-pressure nitrogen or helium through the second gas injection pipeline 22, and the working pressure is not more than 30 MPa.

Preferably, the operating pressure of the hydraulic means 4 is not greater than 50 MPa.

The specific launching process is as follows:

(1) before the launching of the launching load 100, the high-pressure air chamber 1 and the launching tube 3 are in a separated state, the launching load 100 is loaded into the launching tube 3, the elastic belt 130 is extruded into the conical surface of the high-pressure main air chamber 11 and is connected with the high-pressure main air chamber 11 and the launching tube 3 through flanges, and at the moment, the tail part of the elastic support 110 can prop against the limiting ring 121 through the guide ring 123 of the high-pressure auxiliary air chamber 12, as shown in fig. 1;

(2) the high-pressure control system 5 controls the gas injection pipeline 2 to respectively inject high-pressure nitrogen or helium gas into the high-pressure main gas chamber 11 and the high-pressure auxiliary gas chamber 12, as shown in fig. 2;

(3) the high-pressure control system 5 controls the first high-pressure pipe oil way 431 to pump oil, and the hydraulic cylinder 41 pushes the piston 42 to move forwards so as to compress high-pressure gas in the high-pressure auxiliary air chamber 12, as shown in fig. 3;

(4) when the pressure in the high-pressure auxiliary air chamber 12 exceeds the squeezing pressure of the elastic band 130, the elastic support 110 moves forward, and then the high-pressure nitrogen or helium in the high-pressure main air chamber 11 enters the high-pressure auxiliary air chamber 12 through the air inlet 122, so as to further push the elastic support 110 forward, as shown in fig. 4;

(5) when the bullet holder 110 leaves the guide ring 123, the high-pressure nitrogen or helium in the high-pressure main air chamber 11 drives the bullet holder 110 to enter the launching tube 3 through conical surface compression to finish launching, as shown in fig. 5;

(6) after the launching action is finished, the high-pressure control system 5 controls the second high-pressure pipe oil way 432 to pump oil, pushes the piston 42 to reset, and separates the high-pressure air chamber 1 from the launching pipe 3 to carry out the next experiment, as shown in fig. 6.

It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.