阅读说明：本技术 一种导轨与膛线分段结合的电磁炮 (Electromagnetic gun with guide rail and rifling combined in segmented mode ) 是由 李海元 张威 栗保明 于 2019-08-30 设计创作，主要内容包括：本发明属于电磁发射领域,具体涉及一种导轨与膛线分段结合的电磁炮。包括：可转动的连接炮弹和弹枢；加速导轨：包括相对设置的结构相同的第一、第二电磁导轨；膛线炮管：包括相对设置的结构相同的第一和第二膛线炮膛,两侧膛线炮膛内设有对称、同一旋转方向、同一缠度的倾斜膛线,电磁导轨的内径大于膛线炮管的内径,两个两膛线炮膛和两个电磁导轨交错垂直放置；绝缘层：设置在加速导轨和膛线炮管之间使两者隔离,使得电流只在加速导轨内流动；导轨稳定身管：设置在膛管的外周。本发明的结构使得炮弹在膛内获得直线加速时同时获得旋转加速,使得炮弹射出炮口后获得较大的旋转稳定能力,增加炮弹命中率与毁伤能力。(The invention belongs to the field of electromagnetic emission, and particularly relates to an electromagnetic gun with a guide rail and rifling combined in a segmented manner. The method comprises the following steps: the shell and the shell pivot are connected in a rotatable way; accelerating the guide rail: comprises a first electromagnetic guide rail and a second electromagnetic guide rail which are oppositely arranged and have the same structure; rifling gun barrel: the rifling gun comprises a first rifling gun bore and a second rifling gun bore which are oppositely arranged and have the same structure, inclined rifling which are symmetrical, have the same rotating direction and the same winding degree are arranged in the rifling gun bores on the two sides, the inner diameter of an electromagnetic guide rail is larger than that of a rifling gun barrel, and the two rifling gun bores and the two electromagnetic guide rails are vertically arranged in a staggered manner; insulating layer: the isolating device is arranged between the accelerating guide rail and the rifling gun barrel to isolate the accelerating guide rail and the rifling gun barrel, so that current only flows in the accelerating guide rail; the guide rail stabilizes the barrel: is arranged on the periphery of the bore tube. The structure of the invention ensures that the cannonball obtains linear acceleration in the bore and simultaneously obtains rotational acceleration, so that the cannonball obtains larger rotational stability after being shot out of the muzzle, and the hit rate and the damage capability of the cannonball are increased.)

1. An electromagnetic gun with a guide rail and rifling combined in a segmented mode is characterized by comprising:

shell (7) and armature (8): the bullet pivot (8) is rotatably connected with the bullet (7);

accelerating the guide rail: the electromagnetic guide rail comprises a first electromagnetic guide rail (5) and a second electromagnetic guide rail (6) which are oppositely arranged and have the same structure, wherein the curvatures of the outer sides of the first electromagnetic guide rail (5), the second electromagnetic guide rail (6) and an elastic pivot (8) are the same;

rifling gun barrel: the rifling gun comprises a first rifling gun bore (3) and a second rifling gun bore (4) which are oppositely arranged and have the same structure, inclined rifling which are symmetrical, in the same rotating direction and at the same winding degree are arranged in the rifling gun bores at two sides, the inner diameter of an electromagnetic guide rail is larger than the inner diameter of a rifling gun barrel, the two rifling gun bores and two electromagnetic guide rails are vertically arranged in a staggered mode, and the two electromagnetic guide rails and the two rifling gun bores are sequentially and alternately spliced to form the rifling barrel;

insulating layer: the isolating device is arranged between the accelerating guide rail and the rifling gun barrel to isolate the accelerating guide rail and the rifling gun barrel, so that current only flows in the accelerating guide rail;

the guide rail stabilizes the barrel: the pre-tightening force is provided at the periphery of the bore tube combined by the guide rail and the bore.

2. Electromagnetic cannon according to claim 1, characterized in that said insulating layer comprises a first insulating strip (9), a second insulating strip (10), a third insulating strip (11) and a fourth insulating strip (12);

the first insulating strip (9) is arranged between the second electromagnetic guide rail (6) and the first bore line bore (3) and is attached to the section of the first bore line bore (3); the second insulating strip (10) is arranged between the second electromagnetic guide rail (6) and the second rifling bore (4) and is attached to the section of the second rifling bore (4); the third insulating strip (11) is arranged between the first bore line bore (3) and the first electromagnetic guide rail (5) and is attached to the section of the first bore line bore (3); and the fourth insulating strip (12) is arranged between the second rifling bore (4) and the first electromagnetic guide rail (5) and is attached to the section of the second rifling bore (4).

3. The electromagnetic gun according to claim 2, characterized in that it further comprises a lock shaft (13), said lock shaft (13) is made of insulating material, the front and back of the adjacent side surfaces of said two rifling bores and said two electromagnetic guide rails are provided with small openings, the four insulating strips are provided with corresponding through holes, the adjacent rifling bores, insulating strips and electromagnetic guide rails pass through the through holes of the insulating strips through the lock shaft (13), and the two ends of the adjacent rifling bores, insulating strips and electromagnetic guide rails are clamped in the small openings to realize mechanical fixation.

4. The electromagnetic gun according to claim 1, characterised in that said depth of the rifling is 2% of the overall thickness of the bore, the width of the raised portion is 1/2 of the non-raised portion, the number of rifling is 8-12, and the angle between the rifling and the plane of the bottom is in the range 82.5 ° to 89 °.

5. The electromagnetic cannon according to claim 1, characterized in that the cannonball (7) comprises a cannonball body and a cannonball belt, the cannonball pivot (8) is connected with the cannonball body, the cannonball body is made of solid harder metal, and the cannonball belt is made of aluminum or copper.

6. The electromagnetic gun according to claim 5, characterised in that the inner diameter of said electromagnetic guide is greater than 15% of the inner diameter of the rifling barrel; the outer diameter of the belt is 0.5-1mm larger than the inner diameter of the rifling bore, the outer diameter of the body of the bullet is 1-1.5mm smaller than the inner diameter of the bore, and the outer diameter of the body of the bullet is about 95% of the outer diameter of the belt.

7. Electromagnetic cannon according to claim 1, characterised in that the curvature of the outside of the armature (8) is the same as the curvature of the electromagnetic guide, the radius of the outer layer being greater than the inner diameter of the electromagnetic guide by 0.01mm on each side; the first electromagnetic guide rail (5) and the second electromagnetic guide rail (6) are made of copper or copper alloy, and the armature (8) is made of aluminum alloy.

8. The electromagnetic gun according to claim 1, characterised in that said rail-stabilized barrel comprises a barrel (1) and an epoxy layer (2); epoxy layer (2) wraps up in rifling bore and electromagnetism guide rail skin, provides the pretightning force, and as inside and outside insulation system, the barrel is located the skin of epoxy layer (2).

9. The electromagnetic cannon according to claim 8, characterized in that the epoxy layer (2) is a cast layer, in particular: liquid epoxy resin and a curing agent are mixed and poured into gaps among the barrel (1), the first bore line bore (3), the second bore line bore (4), the first electromagnetic guide rail (5) and the second electromagnetic guide rail (6), and after the epoxy resin is hardened, the epoxy resin expands to provide pretightening force for the first bore line bore (3), the second bore line bore (4), the first electromagnetic guide rail (5) and the second electromagnetic guide rail (6) and serve as insulating layers.

10. Electromagnetic gun according to claim 8, characterised in that said barrel (1) is made of two symmetrical semi-cylindrical metal members fastened by screws or a one-step formed metal tube, said barrel (1) preferably being made of stainless steel.

Technical Field

The invention belongs to the field of electromagnetic emission, and particularly relates to an electromagnetic gun with a guide rail and rifling combined in a segmented manner.

Background

The electromagnetic rail gun is a weapon which uses electricity as energy source and can fire ultra-high-speed cannonball. The rail gun breaks through the limit of the traditional firearm in the launching principle, and the chemical energy drive is converted into the electric energy drive; this allows the exit velocity of conventional artillery to be de-limited, i.e. electromagnetic orbital artillery can achieve exit velocities far in excess of conventional artillery. When the rail gun works, current passes through the guide rail, flows through the armature, returns to the guide rail, and forms a strong magnetic field in a flowing area, so that the armature is pushed to accelerate.

In recent years, countries including the united states have listed rail guns as novel strategic weapons in the 21 st century, and have been equipped to battleships for launch experiments. The rail gun in China is started late and still in a theoretical experimental stage at present. The track gun has a simple launching structure, and the shot is launched out and then the flight attitude is kept stable only by means of speed and the structure of the shot. The stability and lethality of the projectile in flight cannot be guaranteed.

Disclosure of Invention

The invention aims to provide an electromagnetic gun with a guide rail and rifling combined in a segmented mode.

The technical solution for realizing the purpose of the invention is as follows:

an electromagnetic gun with a guide rail combined with rifling sections comprises:

shell and armature: the bullet pivot is rotatably connected with the bullet;

accelerating the guide rail: the device comprises a first electromagnetic guide rail and a second electromagnetic guide rail which are oppositely arranged and have the same structure, wherein the curvatures of the outer sides of the first electromagnetic guide rail, the second electromagnetic guide rail and the elastic pivot are the same;

rifling gun barrel: the device comprises a first rifling bore and a second rifling bore which are oppositely arranged and have the same structure, inclined rifling which are symmetrical, have the same rotating direction and are wound at the same degree are arranged in the rifling bores on two sides, the inner diameter of an electromagnetic guide rail is larger than that of a rifling barrel, the two rifling bores and the two electromagnetic guide rails are vertically arranged in a staggered mode, and the two electromagnetic guide rails and the two rifling bores are sequentially and alternately spliced to form the rifling barrel;

insulating layer: the isolating device is arranged between the accelerating guide rail and the rifling gun barrel to isolate the accelerating guide rail and the rifling gun barrel, so that current only flows in the accelerating guide rail;

the guide rail stabilizes the barrel: the pre-tightening force is provided at the periphery of the bore tube combined by the guide rail and the bore.

Further, the insulating layer comprises a first insulating strip, a second insulating strip, a third insulating strip and a fourth insulating strip;

the first insulating strip is arranged between the second electromagnetic guide rail and the first bore line bore and is attached to the section of the first bore line bore; the second insulating strip is arranged between the second electromagnetic guide rail and the second rifling bore and is attached to the section of the second rifling bore; the third insulating strip is arranged between the first bore line bore and the first electromagnetic guide rail and is attached to the section of the first bore line bore; and the fourth insulating strip is arranged between the second rifling bore and the first electromagnetic guide rail and is attached to the section of the second rifling bore.

Further, the rifling gun barrel further comprises a lock shaft which is made of insulating materials, small openings are formed in the front and back of the side surfaces, adjacent to the two rifling gun barrels and the two electromagnetic guide rails, of the two rifling gun barrels, corresponding through holes are formed in the four insulating strips, the adjacent rifling gun barrels, the insulating strips and the electromagnetic guide rails penetrate through the through holes in the insulating strips through the lock shaft, and the two ends of the adjacent rifling gun barrels, the insulating strips and the electromagnetic guide rails are clamped in the small openings to achieve mechanical.

Furthermore, the depth of the rifling is 2 percent of the thickness of the whole bore, the width of the raised part is 1/2 of the non-raised part, the number of the rifling is 8-12, and the included angle between the rifling and the bottom plane ranges from 82.5 degrees to 89 degrees.

Furthermore, the shell comprises a shell body and a band, the shell pivot is connected with the shell body, the shell body is made of solid harder metal, and the band is made of aluminum or copper.

Further, the inner diameter of the electromagnetic guide rail is 15% larger than that of the rifling gun barrel; the outer diameter of the belt is 0.5-1mm larger than the inner diameter of the rifling bore, the outer diameter of the body of the bullet is 1-1.5mm smaller than the inner diameter of the bore, and the outer diameter of the body of the bullet is about 95% of the outer diameter of the belt.

Furthermore, the curvature of the outer side of the armature is the same as that of the electromagnetic guide rail, and the radius of each side of the outer layer is larger than the inner diameter of the electromagnetic guide rail by 0.01 mm; the first electromagnetic guide rail and the second electromagnetic guide rail are made of copper or copper alloy, and the armature is made of aluminum alloy.

Further, the rail stabilization barrel comprises a barrel and an epoxy layer; the epoxy resin layer wraps the rifling bore and the outer layer of the electromagnetic guide rail, pretightening force is provided, the pretightening force is used as an inner and outer insulation structure, and the barrel is located on the outer layer of the epoxy resin layer.

Further, the epoxy resin layer is a casting layer, and specifically comprises: and mixing liquid epoxy resin with a curing agent, pouring the mixture into gaps among the barrel, the first bore line barrel, the second bore line barrel, the first electromagnetic guide rail and the second electromagnetic guide rail, and expanding the mixture after the epoxy resin is hardened to provide pretightening force for the first bore line barrel, the second bore line barrel, the first electromagnetic guide rail and the second electromagnetic guide rail and serve as insulating layers.

Furthermore, the barrel adopts two symmetrical semi-cylindrical metal components fastened by screws or a metal pipe formed in one step, and the material of the barrel is preferably stainless steel.

Compared with the prior art, the invention has the remarkable advantages that:

(1) through designing the structure and the combination mode of the gun bore and the electromagnetic track, the armature and the cannonball are not affected with each other when the cannonball accelerates, certain rotation is generated after the cannonball is launched, and the stability of the cannonball flying process is ensured. The stable flight attitude can improve the firing range of the cannonball, increase the damage capability of the cannonball and avoid the bad condition of the landing of the cannonball tail or the landing of the cannonball body.

(2) Compared with the existing pretightening screw mounting method, the epoxy resin casting body is simpler and easier to mount and can provide stable structural protection.

(3) The cannonball is separated from the armature and the electromagnetic track and the cannon bore structure, so that the current of the track cannon structure is ensured to be level, and the damage phenomenon is prevented.

Drawings

FIG. 1 is a three-dimensional schematic diagram of the structure of the electromagnetic gun of the present invention.

Fig. 2 is a front view of the electromagnetic gun structure of the invention.

Fig. 3 is a top view of the electromagnetic gun structure of the invention.

Fig. 4 is a right side view of the electromagnetic gun structure of the present invention.

Fig. 5 is a left side view of the electromagnetic gun structure of the present invention.

Figure 6 is an isometric view of an electromagnetic projectile of the present invention.

Fig. 7 is a complementary armature diagram of the present invention.

Fig. 8 is a sectional view a-a of fig. 2.

Fig. 9 is a sectional view B-B of fig. 3.

Fig. 10 is a three-dimensional schematic diagram of the internal structure of the electromagnetic gun.

Description of reference numerals:

1-barrel, 2-epoxy layer, 3-first rifling bore, 4-second rifling bore, 5-first electromagnetic guide rail, 6-second electromagnetic guide rail, 7-cannonball, 7(1) -bomb body, 7(2) -bomb belt, 8-armature, 9-first insulating strip, 10-second insulating strip, 11-third insulating strip, 12-fourth insulating strip and 13-lock shaft.

Detailed Description

As shown in fig. 1-10, a new structure of an orbital barrel enables a projectile to obtain rotational acceleration when the projectile obtains linear acceleration in a bore, so that the projectile obtains larger rotational stability after being ejected out of a muzzle, and the hit rate and the damage capability of the projectile are increased. The part of structure mainly includes, first rifling bore 3, second rifling bore 4, first electromagnetism guide rail 5, second electromagnetism guide rail 6, first insulating strip 9, second insulating strip 10, third insulating strip 11, fourth insulating strip 12, C font shell stabilization armature 8, cartridge belt shell 7, stainless steel barrel 1, epoxy resin pouring pretension body, left front upper lock axle, right front upper lock axle, left back upper lock axle, right back upper lock axle, left front lower lock axle, right front lower lock axle, left back lower lock axle, right back lower lock axle.

The first rifling bore 3 and the second rifling bore 4 are respectively arranged in parallel with the left and the right to be used as a projectile rotation accelerating cavity, and rifling lines which are symmetrical and have the same rotation direction and the same winding degree are arranged in the rifling bores on the two sides. The bore material is selected from harder metals.

The first electromagnetic guide rail 5 and the second electromagnetic guide rail 6 are vertically arranged with the two rifling gun barrels in a staggered way, the inner diameter of the electromagnetic guide rail is about 15 percent larger than that of the rifling gun barrels, and the structure is used as an armature accelerating cavity. The bore and the guide rail are isolated by an insulating strip and are not contacted with each other. The inner sides of the guide rails need to be smooth, the curvatures of the inner sides of the guide rails on the two sides are the same, and metal materials with high conductivity, such as pure copper or copper alloy, are adopted.

The insulating strip is slightly thinner than the guide rail and the bore, adopts a high-resistance high-heat-resistance insulator, can select organic materials or inorganic materials with lower hardness, and mainly acts to cut off the current in the guide rail and the armature.

The rifling bore, the electromagnetic guide rail and the outer layer of the insulating strip are connected in a gap, a small square opening is formed, 8 locking shafts 13 are clamped in the gap, and the locking shafts 13 are respectively placed in the front 4 and the rear 4 of the barrel; the front and the back are divided into upper left, upper right, lower left and lower right areas.

The locking shaft 13 mainly functions to prevent the rifling bore from sliding relatively to the electromagnetic guide rail and the insulating strip, and the rifling bore, the electromagnetic guide rail and the insulating strip are locked by mechanical force. The lock shaft is made of an insulating material with higher strength and hardness.

In order to ensure the successful launching, a designed method for designing the stable armature of the matched cannonball and the C-shaped cannonball is provided. The curvature of the outer side of the armature 8 is the same as that of the electromagnetic guide rail, and the radius of the outer layer is slightly larger than the inner diameter of the electromagnetic guide rail. When the armature 8 is launched, the armature 8 and the cannonball are squeezed into the track together, the armature 8 is not in contact with the rifling bore due to the shape, and after the armature is electrified, the armature 8 slides along with the guide rail to advance and pushes the cannonball to accelerate. The armature 8 is made of light high-conductivity metal, so that the energy conversion efficiency during emission is improved, and the armature is generally made of aluminum alloy and does not support multiple times of emission. As shown in fig. 6, the armature is a C-shaped solid armature, and is integrally cast, and the projections are matched with the cannonball and used for stabilizing the rotation of the cannonball in the bore.

The outer diameter of the bullet belt is slightly larger than the inner diameter of the rifling bore, so that the stability of the rotation acceleration during acceleration is ensured. The shell external diameter slightly is less than bore internal diameter, and the shell external diameter is about band external diameter 95%, guarantees that shell self is complete and overall stability when the transmission, and the specific numerical value of external diameter is decided by the demand. The structure adopts a single bullet belt structure, and the stability in the bore of the cannonball is ensured by connecting the cannonball and the armature; if multiple bands are used, the armature need not be attached, but friction increases. As shown in figure 5, the cannonball is divided into two parts, 7(1) is a cannonball body, and solid and hard metal is adopted to play a role in kinetic energy damage; can also be used as a blasting cannonball. And 7(2) the elastic belt is made of a softer metal with lower friction force, and plays a role in providing rotation acceleration torque. The tail of the cannonball is provided with a small opening to match with the armature; the shot is preferably squeezed into the rifled bore before firing.

And the epoxy resin layer 2 wraps the rifling bore and the outer layer of the electromagnetic guide rail and serves as an inner and outer insulation structure. The concrete pouring method comprises the following steps: at a specific temperature, epoxy resin and a curing agent are mixed and poured into gaps between the barrel 1 and the structures 3, 4, 5 and 6, and the epoxy resin is slightly expanded after being hardened to play a pre-tightening role on the structures 3, 4, 5 and 5; and is an insulating material per se. At this point, the gun barrel preparation is complete.

The barrel is made of stainless steel 1, the barrel 1 is arranged on the outermost layer of the integral structure, the epoxy resin layer 2 is arranged between the barrel and the bore, the barrel 1 is made of stainless steel, and other metals with light weight and high strength can be adopted, so that the barrel is mainly resistant to corrosion and high temperature. The barrel 1 is mainly used for ensuring the overall stability, protecting the internal structure and providing the pressure of the epoxy resin body. The barrel 1 can adopt two symmetrical semi-cylindrical components fastened by screws, and can also use a metal tube formed in one step.

When the invention is used, the television and the cannonball are pushed into the track, the armature is contacted with the electromagnetic guide rail, and the cannonball belt is contacted with the rifling in the bore and naturally generates nicks. Then, pulse current is connected into the electromagnetic tracks on two sides, current flows into one side, and current flows out from the other side; the current forms an electromagnetic field near the guide rails, the current directions of the guide rails on the two sides are opposite, and the magnetic fields are mutually enhanced on the inner sides of the two guide rails; meanwhile, current passes through the armature, and the armature accelerates to advance under the action of electromagnetic force in a magnetic field to push the cannonball to accelerate and rotate. After the cannonball is punched out of the cannonball opening, the armature automatically falls off due to different air resistances of the armature and the cannonball, and the cannonball rotates and flies to a target.