Firearms spiral stores power bullet
Technical field
The present invention relates to firearms spiral and store power bullet, be applicable to all grenades, as the bullet of various rifle, the shell etc. of various big gun, belong to firearms technology and science and techniques of defence field.
Background technology
The grenade used now has two large weakness: launching once the bullet being grenade is that blast and the complete explosive expansions of unburned its gunpowder complete not have left shell case to during maximum volume completely at ammunition, such bullet, when leaving shell case, does not obtain maximum kinetic energy; Two is spiral rifling effects that bullet is subject in firearm chamber in firearm chamber, bullet is produced and rotates thus ensure that the flight curve of bullet reaches optimum state, but this spiral rifling makes bullet produce the flying speed inherently reducing bullet when rotating, and namely this spiral rifling can cause certain kinetic energy rejection to bullet; The present invention overcomes this two weakness exactly, makes bullet can obtain maximum ammunition blast kinetic energy before being separated with shell case, bullet can also be made simultaneously to produce spiral rotating, and do not need to utilize firearms spiral rifling to produce spiraling when bullet is separated with shell case.
Summary of the invention
The object of this invention is to provide and a kind ofly can make bullet before being separated with shell case, obtain maximum ammunition blast kinetic energy and the firearms spiral that bullet can be made when bullet is separated with shell case to produce spiral rotating stores power bullet.
Firearms spiral stores power bullet, comprises a shell case and a bullet be enclosed within the shell case foreneck of shell case; It is characterized in that:
1, bullet bullet afterbody of main gunpowder in shell case is the bullet afterbody concave spherical surface of concave spherical, bullet afterbody concave spherical surface is evenly equipped with three or four threaded hole, threaded hole rotates along warhead-containing body and stretches to bullet cephalad direction, threaded hole is long is 1/1 to three/5th of bullet, threaded hole innermost end conglobate plane be threaded hole bosom disk, the axis parallel of threaded hole bosom disk and bullet, and the extended surface of threaded hole bosom disk is overlapping with the axis of bullet, its objective is that the active force of explosive expansions gas to threaded hole bosom disk making to enter threaded hole can make bullet obtain maximum rotation torque power, threaded hole reduces from the threaded hole entrance of bullet afterbody concave spherical surface gradually to threaded hole bosom its bore dia of disk end, threaded hole entrance and threaded hole are provided with one block of circular threaded hole entrance foamed plastics near the region of bullet afterbody concave spherical surface, the threaded hole entrance foamed plastics of this block circle is met high temperature and can at once be melted, the thickness of threaded hole entrance foamed plastics is no more than 1/2nd of threaded hole length, the effect one of foamed plastics to stop that main gunpowder closely knit in shell case enters threaded hole, two is that the heat fusing of foamed plastics needs the regular hour, the thicker fusing time of foamed plastics is longer, and the time needed for the complete explosive expansions of main gunpowder closely knit in this heat fusing time and shell case is closely related, the excircle of bullet has bullet external screw thread, and the externally threaded pitch of bullet is comparatively large, and namely bullet external screw thread only has one to three screw thread enclosed outside bullet, shell case comprises projectile tail, projectile tail ignites gunpowder, the main gunpowder of body, projectile tail ignite barrier between gunpowder and the main gunpowder of body, reducing, shell case foreneck before body, shell case, shell case foreneck internal thread is had in shell case foreneck, shell case foreneck internal thread and bullet external screw thread match, and the bullet external screw thread of bullet rotates and bullet within 0.5 ~ 3 week, can be made from shell case foreneck, to rotate shell case foreneck internal thread and bullet is separated with shell case in shell case foreneck internal thread, bullet external screw thread, shell case foreneck internal thread are consistent with the threaded hole hand of spiral of bullet afterbody concave spherical surface, make to enter in threaded hole along threaded hole and the rotation torque power of impacting threaded hole bosom disk and bullet being obtained, just make bullet rotate shell case foreneck internal thread and bullet is separated with shell case, but cross section Ф, 30o at an angle≤Ф≤60 o of the center convolution line of threaded hole bullet axis vertical with bullet.
2, the barrier that in shell case, the projectile tail of projectile tail is ignited between gunpowder and the main gunpowder of body has multiple uniform aperture and barrier hole, the effect in barrier hole is when igniting gunpowder and being ignited district's pressure ignition by projectile tail portion pressure, the flame igniting gunpowder explosion can through the main gunpowder in barrier hole ignition shell case, after main gunpowder explosion, the impulsive force of blast mainly acts on bullet afterbody concave spherical surface, and the foamed plastics of the explosion gas thermalization threaded hole entrance expanded at a high speed, then threaded hole is rushed at a high speed, and promote the bullet generation High Rotation Speed consistent with bullet external screw thread direction, bullet is High Rotation Speed in shell case foreneck internal thread, bullet is made to rotate shell case foreneck internal thread, because bullet spins out the time T needed for shell case foreneck internal thread from shell case foreneck internal thread, want large with the bullet time t directly skidded off needed for shell case foreneck, i.e. T > t, add heat fusing time and the attack time of explosive expansions hot gas in threaded hole of threaded hole entrance foamed plastics, just make before bullet spins out shell case foreneck internal thread from shell case foreneck internal thread, the main gunpowder of shell case has exploded completely, namely bullet spin out shell case foreneck internal thread from shell case foreneck internal thread before the blast of the main gunpowder maximum kinetic energy that made bullet receive main gunpowder explosion to produce, thus make bullet while high-speed rotary produces shell case foreneck internal thread, bullet obtains maximum initial velocity, and after this bullet obtains this maximum initial velocity, without the decelerating effect of rifling, directly fly out firearm chamber, therefore, bullet can have maximum initial velocity in the moment of the firearm chamber that flies out.
The present invention compared with prior art has the following advantages:
1, the bullet of existing grenade launch be ammunition not completely the complete explosive expansions of blast i.e. unburned its gunpowder complete just have left shell case to during maximum volume, such bullet, when leaving shell case, does not obtain maximum kinetic energy; And bullet of the present invention is after ammunition complete explosive expansions to maximum volume, just make bullet rotate shell case, therefore bullet has obtained maximum kinetic energy before being separated with shell case.
2, rotate to make bullet produce thus ensure that the flight curve of bullet reaches optimum state, the bullet of existing grenade is subject to the spiral rifling effect in firearm chamber in firearm chamber, but this spiral rifling makes bullet produce the flying speed inherently reducing bullet when rotating, and namely this spiral rifling can cause certain kinetic energy rejection to bullet; And bullet of the present invention to rotate be before bullet is separated with shell case, just achieve rotation, doing so avoids bullet and before the firearm chamber that flies out at a high speed, reduce bullet by the decelerating effect of spiral rifling to fly out the initial velocity of firearm chamber.
Accompanying drawing explanation
Fig. 1 is the generalized section of the embodiment of the present invention;
Fig. 2 is bullet generalized section embodiment illustrated in fig. 1;
Fig. 3 is bullet afterbody schematic top plan view embodiment illustrated in fig. 1;
Fig. 4 be embodiment illustrated in fig. 1 in P enlarged diagram;
Fig. 5 be embodiment illustrated in fig. 1 in Q enlarged diagram;
Fig. 6 be embodiment illustrated in fig. 1 in R enlarged diagram.
In Fig. 1-6: 1, projectile tail 2, ignite gunpowder 3, barrier 4, barrier hole 5, body 6, main gunpowder 7, reducing 8 before shell case, bullet afterbody concave spherical surface 9, threaded hole 10, shell case foreneck 11, shell case foreneck internal thread 12 warhead-containing body 13, bullet external screw thread 14, bullet head 15, bullet tail 16, foamed plastics 17, threaded hole bosom disk 18, projectile tail portion pressure ignites district.
Detailed description of the invention
In the embodiment shown in Fig. 1-6: firearms spiral stores power bullet, comprise a shell case and a bullet be enclosed within the shell case foreneck 10 of shell case, it is characterized in that: 15, the bullet tail of bullet main gunpowder 6 in shell case is the bullet afterbody concave spherical surface 8 of concave spherical, bullet afterbody concave spherical surface 8 is evenly equipped with three or four threaded hole 9, threaded hole 9 rotates along warhead-containing body 12 and stretches to bullet head 14 direction, threaded hole 9 is long is 1/1 to three/5th of bullet, threaded hole 9 innermost end conglobate plane be threaded hole bosom disk 17, the axis parallel of threaded hole bosom disk 17 and bullet, and the extended surface of threaded hole bosom disk 17 is overlapping with the axis of bullet, its objective is that the active force of explosive expansions gas to threaded hole bosom disk 17 making to enter threaded hole 9 can make bullet obtain maximum rotation torque power, threaded hole 9 reduces from threaded hole 9 entrance of bullet afterbody concave spherical surface 8 gradually to threaded hole bosom its bore dia of disk 17 end, threaded hole 9 entrance and threaded hole 9 are provided with one block of circular threaded hole 9 entrance foamed plastics 16 near the region of bullet afterbody concave spherical surface 8, the threaded hole 9 entrance foamed plastics 16 of this block circle is met high temperature and can at once be melted, the thickness of threaded hole 9 entrance foamed plastics 16 is no more than 1/2nd of threaded hole 9 length, the effect one of foamed plastics 16 to stop that main gunpowder 6 closely knit in shell case enters threaded hole 9, two is that the heat fusing of foamed plastics 16 needs the regular hour, the foamed plastics 16 thicker heat fusing time is longer, and the time of main gunpowder 6 closely knit in this heat fusing time and shell case completely needed for explosive expansions is closely related, the excircle of bullet has bullet external screw thread 13, and the pitch of bullet external screw thread 13 is comparatively large, and namely bullet external screw thread 13 only has one to three screw thread enclosed outside bullet, shell case comprises projectile tail 1, projectile tail ignites gunpowder 2, the main gunpowder of body 6, projectile tail ignite barrier 3 between gunpowder 2 and the main gunpowder 6 of body, reducing 7, shell case foreneck 10 before body 5, shell case, shell case foreneck internal thread 11 is had in shell case foreneck 10, shell case foreneck internal thread 11 and bullet external screw thread 13 match, and the bullet external screw thread 13 of bullet rotates and bullet within 0.5 ~ 3 week, can be made from shell case foreneck 10, to rotate shell case foreneck internal thread 11 and bullet is separated with shell case in shell case foreneck internal thread 11, bullet external screw thread 13, shell case foreneck internal thread 11 are consistent with threaded hole 9 hand of spiral of bullet afterbody concave spherical surface 8, make to enter in threaded hole 9 along threaded hole 9 and the rotation torque power of impacting threaded hole bosom disk 17 and bullet being obtained, just make bullet rotate shell case foreneck internal thread 11 and bullet is separated with shell case, but cross section Ф, 30o at an angle≤Ф≤60 o of the center convolution line of threaded hole 9 bullet axis vertical with bullet.
The barrier 3 that in shell case, the projectile tail of projectile tail 1 is ignited between gunpowder 2 and the main gunpowder of body 6 has multiple uniform aperture and barrier hole 4, the effect in barrier hole 4 is when igniting gunpowder 2 and being ignited district 18 pressure ignition by projectile tail portion pressure, the flame that ignition gunpowder 2 explodes can ignite the main gunpowder 6 in shell case through barrier hole 4, after main gunpowder 6 explodes, the impulsive force of blast mainly acts on bullet afterbody concave spherical surface 8, and the foamed plastics 16 of explosion gas thermalization threaded hole 9 entrance expanded at a high speed, then threaded hole 9 is rushed at a high speed, and promote the bullet generation High Rotation Speed consistent with bullet external screw thread 13 direction, bullet is High Rotation Speed in shell case foreneck internal thread 11, bullet is made to rotate shell case foreneck internal thread 11, because bullet spins out the time T needed for shell case foreneck internal thread 11 from shell case foreneck internal thread 11, want large with the bullet time t directly skidded off needed for shell case foreneck 10, i.e. T > t, add heat fusing time and the attack time of explosive expansions hot gas in threaded hole 9 of threaded hole 9 entrance foamed plastics 16, just make before bullet spins out shell case foreneck internal thread 11 from shell case foreneck internal thread 11, the main gunpowder 6 of shell case has exploded completely, namely bullet spins out from shell case foreneck internal thread 11 maximum kinetic energy that the blast of main gunpowder 6 before shell case foreneck internal thread 11 made bullet receive the blast of main gunpowder 6 to produce, thus make bullet while high-speed rotary produces shell case foreneck internal thread 11, bullet obtains maximum initial velocity, and after bullet obtains maximum initial velocity, without the decelerating effect of rifling, directly fly out firearm chamber, therefore, bullet can have maximum initial velocity in the moment of the firearm chamber that flies out.