CN-121977385-A - Armature structure of coil type electromagnetic emission flying net capturing unmanned aerial vehicle

CN121977385ACN 121977385 ACN121977385 ACN 121977385ACN-121977385-A

Abstract

The invention provides an armature structure of a coil type electromagnetic emission flying net capturing unmanned aerial vehicle, and belongs to the technical field of electromagnetic emission and unmanned aerial vehicle prevention and control. The armature adopts a cylindrical high-strength engineering plastic shell, the end face is provided with grooves which are uniformly distributed in the circumferential direction, the side face is provided with corresponding axial long grooves for placing iron steel columns, high-strength compression springs are symmetrically distributed in the armature to provide power for the steel columns to spring open, and the steel columns are connected with a light high-strength fiber flying net through connecting ropes. When the armature is in the gun barrel, natural radial constraint is formed on the steel column by the inner wall of the gun barrel, the spring drives the steel column to synchronously spring out after the gun barrel is ejected, and the flying net is pulled to be evenly unfolded to form a circular capturing net surface. The invention solves the technical problems that the existing armature cannot adapt to coil cannons, the flying net is not unfolded uniformly, the all-metal structure is easy to be in electromagnetic short circuit, the weight is large, the limiting structure is complex and easy to be blocked, and has the characteristics of adapting to the coil cannons, high acceleration efficiency, uniform flying net unfolding, simple structure, light weight, insulation and stable emission.

Inventors

ZHU WENHAO
WANG YULU
Zou Kaiyang
TANG BO
JIANG YI

Assignees

南京工业职业技术大学

Dates

Publication Date: 20260505
Application Date: 20260330

Claims (10)

1. An armature structure of a coil type electromagnetic emission flying net capturing unmanned aerial vehicle is characterized in that: Comprises an armature body adopting a cylindrical high-strength engineering plastic shell; four U-shaped grooves (1) which are uniformly distributed along the circumferential direction are formed in the end face of the armature body, four axial long grooves (2) which are communicated with the end face U-shaped grooves (1) in a one-to-one correspondence manner are formed in the side face of the armature body, and steel columns (6) made of iron materials are placed in the axial long grooves (2); the armature body is internally provided with two spring mounting holes (3), high-strength compression springs (5) are symmetrically distributed in the spring mounting holes (3), spring clamping structures (4) are arranged in the spring mounting holes (3), the compression springs (5) are fixed in the spring mounting holes (3) through the spring clamping structures (4), and the end parts of the compression springs (5) are abutted to the steel columns (6) to provide balanced driving force for synchronous ejection of the four steel columns (6); the overhanging end of the steel column (6) is connected with a flying net (7) through a connecting rope (8); the armature body is adapted to the coil electromagnetic transmitter, when the armature body is positioned in the coil gun barrel, the inner wall of the barrel forms natural radial constraint on the steel column (6), after the armature body shoots out of the barrel, the steel column (6) synchronously pops out to the periphery along the axial long groove (2) under the driving force of the compression spring (5), and the traction flying net (7) uniformly expands to form a circular capturing net surface.
2. The armature structure of the coil type electromagnetic emission flying net unmanned aerial vehicle according to claim 1, wherein a steel column (6) made of iron material can move forwards under the attraction of an electromagnetic field of a coil gun, so that the armature body is driven to move at a high speed along a gun barrel, and a cylindrical structure of the armature body and an excitation coil of the coil type electromagnetic emitter form efficient electromagnetic coupling.
3. The armature structure of the coil type electromagnetic emission flying net capturing unmanned aerial vehicle according to claim 1, wherein four U-shaped grooves (1) are distributed at equal intervals along the circumferential direction of the end face of the armature body, the extending direction of the axial long grooves (2) is parallel to the axis of the armature body, the axial long grooves (2) form radial sliding guide channels of steel columns (6), and the outlets of the radial sliding guide channels are subjected to round corner abrasion resistance treatment.
4. The armature structure of the coil type electromagnetic emission flying net capturing unmanned aerial vehicle according to claim 1, wherein the compression spring (5) is a high-strength alloy spring, the spring clamping structure (4) and the plastic shell of the armature body are of an integrated forming structure, reliable axial limiting is achieved on the compression spring (5), and spring displacement and falling and flying of the armature after the armature goes out of a bore are prevented in the emission process.
5. The armature structure of the coil type electromagnetic emission flying net capturing unmanned aerial vehicle according to claim 1, wherein the flying net (7) is a light high-strength fiber net, four steel columns (6) are fixedly connected with four corner points of the flying net (7) through connecting ropes (8), the flying net (7) is tightly folded at the rear part of the armature body in a folded state, and moves forwards synchronously with the armature body during emission.
6. The armature structure of the coil electromagnetic emission flying net capturing unmanned aerial vehicle according to claim 5, wherein the diameter of the circular capturing net surface of the flying net (7) after being unfolded is matched with the ejecting stroke of the steel column (6) along the axial long groove (2).
7. The armature structure of the coil type electromagnetic emission flying net unmanned aerial vehicle according to claim 1, wherein the steel column (6) is made of high-strength iron, the outward extending end of the steel column (6) is subjected to arc chamfering, the outer diameter of the steel column (6) is matched with the inner diameter of the axial long groove (2), and smooth sliding of the steel column (6) along the axial long groove (2) is ensured.
8. The armature structure of the coil type electromagnetic emission flying net capturing unmanned aerial vehicle according to claim 1, wherein a plastic housing of the armature body is of a smooth streamline cylindrical structure and is made of insulating engineering plastic resistant to high-speed vibration and shock, and the inner wall of the axial long groove (2) is subjected to wear-resistant treatment.
9. The armature structure of the coil type electromagnetic emission flying net capturing unmanned aerial vehicle according to claim 1, wherein the connecting rope (8) is made of light high-strength fiber materials, and the U-shaped groove (1) is used for accommodating the connecting rope (8) between the steel column (6) and the flying net (7).
10. The armature structure of the coil electromagnetic emission flying net capturing unmanned aerial vehicle according to claim 1, wherein the sizes of the U-shaped groove (1) and the axial long groove (2), the elastic coefficient of the compression spring (5), the length of the steel column (6) and the overall diameter of the armature body can be flexibly adjusted according to the emission parameters of the coil gun, the preset unfolding diameter of the flying net (7) and the target unmanned aerial vehicle prevention and control scene.

Description

Armature structure of coil type electromagnetic emission flying net capturing unmanned aerial vehicle Technical Field The invention belongs to the technical field of electromagnetic emission and unmanned aerial vehicle prevention and control, and particularly relates to an armature structure of a coil type electromagnetic emission fly net unmanned aerial vehicle. Background The electromagnetic emission is a technology for utilizing electromagnetic field to generate electromagnetic force to push the armature and carrier to move at high speed, wherein the coil type electromagnetic emission is a preferable emission mode of a small projection device by virtue of the advantages of stable acceleration, high emission precision and controllable electromagnetic force output, and gradually replaces the traditional manual projection and pneumatic emission means. The flying net capturing device has the advantages that the existing electromagnetic emission armatures are mostly of a track type adaptive design, are not structurally optimized according to the acceleration principle of a coil gun, cannot form efficient coupling with the electromagnetic field of the coil gun, are low in acceleration efficiency, are of an all-metal structure, have the problems of high weight and high air resistance, are easy to produce electromagnetic short circuit with metal parts in the coil gun to affect emission stability, are unreasonable in design of a flying net ejection power structure, are insufficient in synchronicity and reliability of steel column ejection, lead to uneven flying net expansion, are low in unmanned aerial vehicle capturing success rate, are required to be additionally provided with an additional limiting unlocking structure, are easy to generate clamping stagnation to cause flying net expansion failure, and are poor in overall adaptation. Therefore, it is needed to design an armature structure of an unmanned aerial vehicle adapted to coil electromagnetic emission to solve the above technical problems. Disclosure of Invention In order to solve the technical problems, the invention provides an armature structure of a coil type electromagnetic emission flying net capturing unmanned aerial vehicle, which solves the technical problems that the existing armature cannot be adapted to acceleration of a coil gun, the flying net is not uniformly unfolded, the weight of an all-metal structure is large, electromagnetic short circuit is easy, and a limiting structure is complex and easy to clamp. An armature structure of a coil type electromagnetic emission flying net capturing unmanned aerial vehicle comprises an armature body adopting a cylindrical high-strength engineering plastic shell; four U-shaped grooves which are uniformly distributed along the circumferential direction are formed in the end face of the armature body, four axial long grooves which are communicated with the U-shaped grooves of the end face in a one-to-one correspondence manner are formed in the side face of the armature body, and steel columns made of iron materials are placed in the axial long grooves; The armature body is internally provided with two spring mounting holes, high-strength compression springs are symmetrically distributed in the spring mounting holes, spring clamping structures are arranged in the spring mounting holes, the compression springs are fixed in the spring mounting holes through the spring clamping structures, and the end parts of the compression springs are abutted to the steel columns to provide balanced driving force for synchronous ejection of the four steel columns; the overhanging end of the steel column is connected with a flying net through a connecting rope; the armature body is adapted to the coil electromagnetic transmitter, when the armature body is positioned in the coil gun barrel, the inner wall of the barrel forms natural radial constraint on the steel column, after the armature body shoots the barrel, the steel column synchronously bounces out to the periphery along the axial long groove under the driving force of the compression spring, and the traction flying net uniformly expands to form a circular capturing net surface. Preferably, the steel column made of iron material can move forwards under the attraction of the electromagnetic field of the coil gun, so that the armature body is driven to move at a high speed along the gun barrel, and the cylindrical structure of the armature body and the exciting coil of the coil electromagnetic transmitter form efficient electromagnetic coupling. Preferably, the four U-shaped grooves are distributed at equal intervals along the circumferential direction of the end face of the armature body, the extending direction of the axial long grooves is parallel to the axis of the armature body, the axial long grooves form radial sliding guide channels of the steel column, and the outlets of the radial sliding guide channels are subjected to round corner wear-resistant treatment.