Gas storage type long-distance artillery

Abstract

The traditional artillery is not long, the root reason is that the utilization rate of a gun barrel is too low, when a shell moves to a muzzle, the bore pressure is attenuated to be very small and is more than 52 times of the diameter, and the effect of lengthening the gun barrel is not good. The problem is effectively solved. The key point is that the gas storage chamber is additionally arranged between the powder chamber and the breech, the volume of the gas storage chamber is equal to or larger than that of the gun barrel, the utilization rate of the gun barrel can reach 80% from above, and the range is increased by several times to dozens of times. According to the first embodiment, the volume of a gas storage chamber is 0.5703.3 m, the volume of a 1.5-time gun barrel is 0.3802.3 m, the length of the gun barrel is 20.15 m, the utilization rate of the gun barrel is 80%, the maximum chamber pressure is 273 MPa, 52 kg of guided projectiles are launched, the maximum overload is 10,000, the minimum overload is 6 thousand G, the average overload is 8 thousand G, and according to V2 = 2 as, the muzzle speed V = 1778 m / s, and the firing range reaches 130 km and is far beyond 20 km of a PLz-05 artillery. 150 to 190 kilograms of propellant powder is needed.

Description

[0001] Traditional artillery cannot fire far. The fundamental reason is that the utilization rate of the gun barrel is too low. When the shell moves to the muzzle, the chamber pressure has decayed to a very small level. For a gun with a diameter of more than 52 times, lengthening the gun barrel will have little effect. The present invention effectively solves this problem. The key to the present invention is to add an air storage chamber between the chamber and the breech. The volume of the air storage chamber is equivalent to or greater than the volume of the gun barrel. The utilization rate of the gun barrel can reach 80%, and the range is increased by several to dozens of times. Example 1: 130 times the diameter of 155 mm self-propelled howitzer: air storage chamber volume 0.5703 m 3 , 1.5 times the barrel volume of 0.3802 m 3 , the barrel length is 20.15 meters, the barrel utilization rate is 80%, the maximum chamber pressure is 273 MPa, and it can launch 52 kg guided shells. The maximum overload is 10,000, the minimum is 6,000 G, and the average is 8,000 G. According to V 2 = 2as,, the muzzle velocity V = 1778 m / s, the range is 130 km, far exceeding the 20 km of the PLz-05 artillery. 150 to 190 kg of propellant is required.

[0002] 1. Feature 1: The most critical feature of the present invention is to add a gas storage chamber between the chamber and the breech. The purpose is to improve the utilization rate of the gun barrel and significantly increase the range. It is especially suitable for launching guided artillery shells. Under the maximum overload limit of 10,000G, the range of traditional artillery is increased by several to dozens of times.

[0003] 2. Feature 2: Another key feature of the present invention is that zirconium oxide is plasma sprayed on the inner surface of the barrel and the inner surface of the gas storage chamber, the purpose of which is to improve the wear resistance and high temperature resistance of the barrel and extend the life of the barrel. It is best to first plate a layer of chromium and then plasma spray zirconium oxide. Zirconium oxide has good toughness and is not easy to crack or break under high temperature and high pressure.

[0004] 3. Feature 3: The bottom of the cartridge case is a grid structure, which is designed to accommodate the powder bag and facilitate the filling of the gas storage chamber when ignited. The high-temperature and high-pressure gas first fills the gas storage chamber and then drives the projectile to move.

[0005] 4. Feature 4: A gun mount plate perpendicular to the gun barrel is set at the gun breech. The gun mount plate is semicircular and rectangular, with a semicircular lower half and a rectangular upper half. A special rotary pit digging machine is developed to quickly dig a 45-degree inclined pit with a semicircular lower half and a rectangular upper half, which just fits the gun mount plate. The gun is fired at a 45-degree angle, and the gun mount plate sits on the 45-degree inclined pit, using the earth to resist the huge recoil.

[0006] 5. Feature 5: Trusses are set on both sides of the upper and lower sides of the barrel to counteract the bending of the barrel caused by the gravity of the barrel; trusses are set on both sides of the horizontal direction of the barrel to counteract the horizontal shaking of the barrel.

[0007] 6. Feature 6: The present invention is applicable to both rifled guns and smoothbore guns. When the speed of the projectile is greater than 1300 m / s, the smoothbore gun should be used first, and the projectile should be precisely guided by tail fin stabilization.

[0008] 7. The gun spindle and mechanical arm should be developed to control the gun and the gun mount to sit on the 45-degree inclined pit as specified in "Feature 4".

[0009] 8. The present invention is applicable to all kinds of guns and cannons, and when used for guns, it can also multiply the effective range of the guns.

[0010] Example 2: 400-caliber 155mm naval gun, barrel length 62 meters, gas chamber volume 1.5 times the barrel volume, barrel volume 1.17 meters 3 Gas storage chamber volume 1.755 m 3 , the barrel utilization rate is 80%, firing 52 kg guided shells, the maximum overload is 10,000G, the minimum is 6,000G, and the average is 8,000G. According to V 2 =2as, muzzle velocity V = 3119 m / s, range 900 km.

[0011] Example 3: 500-caliber 155mm naval gun, barrel length 77.5 meters, gas chamber volume 1.5 times the barrel volume, barrel volume 1.462 meters 3 , the volume of the gas storage chamber is 2.194 m 3 , the barrel utilization rate is 80%, firing 52 kg guided shells, the maximum overload is 10,000G, the minimum is 6,000G, the average is 8,000G, the maximum chamber pressure is 273 MPa, according to V 2 =2as, so the muzzle velocity V = 3487 m / s, and the range is 1000 km.

[0012] Example 4: 600-caliber 155mm naval gun, barrel length 93 meters, gas storage chamber volume 1.5 times the barrel volume, barrel volume 1.755 meters 3 , the volume of the gas storage chamber is 2.633 m 3 , the barrel utilization rate is 80%, firing 52 kg guided shells, the maximum overload is 10,000G, the minimum is 6,000G, the average is 8,000G, the maximum chamber pressure is 273 MPa, according to V 2 =2as, so the muzzle velocity V = 3820 m / s, and the range is 1100 km. Description of the drawings Figure 1 This is a side view of a gas storage long-range artillery.

Claims

1. Feature 1: The most critical feature of the present invention is to add a gas storage chamber between the chamber and the breech. The purpose is to improve the utilization rate of the gun barrel and significantly increase the range. It is especially suitable for launching guided artillery shells. Under the maximum overload limit of 10,000G, the range of traditional artillery is increased by several to dozens of times.

2. Feature 2: Another key feature of the present invention is that zirconium oxide is plasma sprayed on the inner surface of the barrel and the inner surface of the gas storage chamber, the purpose of which is to improve the wear resistance and high temperature resistance of the barrel and extend the life of the barrel. It is best to first plate a layer of chromium and then plasma spray zirconium oxide. Zirconium oxide has good toughness and is not easy to crack or break under high temperature and high pressure.

3. Feature 3: The bottom of the cartridge case is a grid structure, which is designed to accommodate the powder bag and facilitate the filling of the gas storage chamber when ignited. The high-temperature and high-pressure gas first fills the gas storage chamber and then drives the projectile to move.

4. Feature 4: A gun mount plate perpendicular to the gun barrel is set at the breech. The gun mount plate is semicircular and rectangular, with a semicircular lower half and a rectangular upper half. A special rotary pit digging machine is developed to quickly dig a 45-degree inclined pit with a semicircular lower half and a rectangular upper half, which just fits the gun mount plate. The gun is fired at a 45-degree angle, and the gun mount plate sits on the 45-degree inclined pit, using the earth to resist the huge recoil.

5. Feature 5: Trusses are set on both sides of the upper and lower sides of the barrel to counteract the bending of the barrel caused by the gravity of the barrel; trusses are set on both sides of the horizontal direction of the barrel to counteract the horizontal shaking of the barrel.

6. Feature 6: The present invention is applicable to both rifled guns and smoothbore guns. When the speed of the projectile is greater than 1300 m / s, the smoothbore gun should be used first, and the projectile should be precisely guided by fin stabilization.

7. The gun spindle and mechanical arm should be developed to control the gun and the gun base plate to sit on the 45-degree inclined pit as specified in "Feature 4".

8. The present invention is applicable to all kinds of guns and cannons, and when used for guns, it can also multiply the effective range of the guns.

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