Bird body and cartridge case separation and recovery device based on multistage coil electromagnetic emission

Abstract

The invention belongs to the technical field of multistage coil electromagnetic emission, and particularly relates to a bird body and cartridge case separation and recovery device based on multistage coil electromagnetic emission. According to the technical scheme, the bird body and cartridge case separation and recovery device based on multistage coil electromagnetic emission comprises an electromagnetic buffer module, a split type magnetic induction cartridge case module, a magnetic induction cartridge case auxiliary installation module and a magnetic induction cartridge case recovery module, and the split type magnetic induction cartridge case module is arranged in the electromagnetic buffer module; the magnetic induction cartridge case auxiliary mounting module is used for pushing the split type magnetic induction cartridge case module into the electromagnetic buffer module to realize auxiliary mounting; and the magnetic induction cartridge case recovery module is used for recovering the launched magnetic induction cartridge cases. According to the bird body and cartridge case separation and recovery device based on multistage coil electromagnetic emission, stable and efficient separation between the cartridge case and the bird body can be achieved so as to maintain the stable flight state after the bird body is emitted, the service life of the magnetic induction cartridge case can be prolonged, and recycling of the magnetic induction cartridge case is achieved.

Description

Technical Field

[0001] This invention belongs to the field of multi-stage coil electromagnetic launch technology, specifically relating to a bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch. Background Technology

[0002] Multi-stage electromagnetic coil launching systems are innovative launching devices that convert electromagnetic energy into kinetic energy. They possess a series of significant advantages, including high launch speed, large launch kinetic energy, high energy conversion rate, strong load adjustability, and good controllability. These characteristics have made them highly sought after in various applications. However, when this system is used for tasks such as bird launches, the inherent requirement of electromagnetic launch—that the launched object must possess a certain level of electromagnetic induction—needs a specially designed magnetically inductive cartridge case structure to assist and guide the launch process. This means that ensuring the safe, stable, and effective separation of the magnetically inductive cartridge case from the bird before it hits the target becomes crucial. Therefore, with the development and application of multi-stage coil electromagnetic launch technology, designing a device capable of achieving smooth and reliable separation between the bird and the cartridge case during launch has become increasingly important. Simultaneously, due to the complex structure and high manufacturing cost of the magnetically inductive cartridge case, designing a device for its recycling is also particularly important.

[0003] The design of a device for separating a bird's body from its casing in a multi-stage coil electromagnetic launch system must consider not only its electromagnetic induction characteristics but also the safety and stability of the separation process. However, current research on devices specifically designed for separating the bird's body from its casing in multi-stage coil electromagnetic launch systems is relatively insufficient. For example, patent CN108362170A describes a ejection device suitable for an air gun, which innovatively integrates a muzzle brake and a spring assembly to achieve stable separation between the projectile and the sabot. However, in practical applications, this forced separation mechanism has some potential problems. First, sabot fragments may simultaneously impact the target plate along with the projectile body, interfering with the accuracy of test results. Second, there is a risk that sabot fragments impacting the projectile could cause unexpected changes in the projectile's attitude. Patent CN209689485U proposes a sabot separator for an air cannon, which separates the sabot by setting a stop that allows the projectile to pass but blocks the sabot from passing through, achieving separation through contact. In low-velocity air cannons, this separator shows good results, successfully overcoming the problem of the projectile getting stuck in the trajectory in previous structures. However, this structure is not suitable for high-speed impact conditions. In addition, the stop needs to be precisely designed to adapt to specific projectile and sabot sizes, which limits the versatility of the system and makes it less adaptable to different types of ammunition. At the same time, the stop will lose its precise blocking effect due to wear after multiple shots, thus affecting the separation efficiency. Patent CN114838621A proposes a forced cartridge case separation device for air guns. This device, with its unique multi-stage ejection buffer system, ensures accurate and efficient separation of the bullet and sabot after firing, while significantly reducing the bullet trajectory instability and sabot fragment interference with the bullet attitude often caused by traditional separation methods. However, the decreasing inner diameter structure of the ejection baffle, designed according to the specific bullet and sabot dimensions, while performing well in targeted applications, also limits its wide applicability to some extent. In addition, the structure is cumbersome to operate and has high maintenance costs. Patent CN216348110U proposes an easily separable sabot design aimed at improving the flight stability of the projectile. Its innovation lies in using air resistance and a specific structure to achieve automatic separation of the sabot. However, the design of its sabot automatically expanding and eventually separating under external force depends on air resistance and other external conditions. Its performance varies under different environmental conditions (such as wind speed, temperature, and humidity), affecting the consistency and reliability of separation. The design of its wind resistance ramp requires precise calculation to ensure that sufficient separation torque is generated while not causing unnecessary interference to the straight flight of the projectile. This increases the complexity of the design and requires a high degree of customization, limiting its versatility in different application scenarios.Patent CN104729364A proposes a segmented structure for a lightweight gas cannon with a pneumatically separated sabot. This structure aims to improve the sabot separation effect and reduce costs by simplifying the structure and eliminating the need for additional devices. It also utilizes the natural resistance of the airflow within the target chamber to achieve efficient separation of the sabot and the projectile. However, this design relies on the air resistance within the target chamber to complete the sabot separation, which means that its performance varies in different air pressures, target chambers of different sizes or shapes, limiting its universal applicability under various experimental conditions. At the same time, the sealing groove design on the base plate is intended to ensure airtightness, but in actual use, high-speed airflow and repeated use affect the sealing effect, thereby affecting the efficiency and effectiveness of pneumatic separation. Patent CN108955371B proposes an electromagnetic separation device for a sabot of a light gas gun. This device, with the help of an electromagnetic separation system with built-in induction elements, can achieve smooth separation between the sabot and the projectile without generating an impact effect. However, the time from when the electromagnet receives the trigger signal to when it generates a sufficient attraction (response time) is crucial to the separation effect. If the response time is too long, the optimal separation time will be missed, resulting in incomplete separation or interference with the trajectory of the projectile. At the same time, the device has a complex structure and high manufacturing and maintenance costs. Patent CN109186334B proposes an electromagnetic coil transmitter and method for reusing the armature, achieving separation of the armature and load and reuse of the armature. However, this technology faces several challenges in practice: First, the control requirements for the connector in the transmission sequence are extremely high, requiring precise timing of disconnection to ensure the continuity and safety of the transmission operation; Second, the armature frequently impacts the head and tail deceleration devices at high speeds, and despite the design of buffer measures, wear and tear on the armature and deceleration components is still difficult to avoid under long-term operation, which directly affects the durability and maintenance cost of the system; Furthermore, the patent description lacks detailed explanation of the specific design details of the key components constituting the transmitter, which may leave room for uncertainty in actual manufacturing and optimization upgrades.

[0004] In summary, none of the aforementioned patented technologies can efficiently achieve stable separation of the bird from the cartridge case when launching a bird using multi-stage coil electromagnetic launch. Summary of the Invention

[0005] This invention provides a bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch, which can achieve smooth and efficient separation between the cartridge case and the bird body to maintain the stable flight state of the bird after launch. It can also improve the service life of the magnetic cartridge case and realize the recycling of the magnetic cartridge case.

[0006] The technical solution of the present invention is as follows: A bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch includes an electromagnetic buffer module, a segmented magnetic cartridge case module, a magnetic cartridge case auxiliary installation module, and a magnetic cartridge case recovery module. The segmented magnetic cartridge case module is disposed in the electromagnetic buffer module. The magnetic cartridge case auxiliary installation module is used to push the segmented magnetic cartridge case module into the electromagnetic buffer module to achieve auxiliary installation. The magnetic cartridge case recovery module is used to recover the magnetic cartridge case after launch.

[0007] Furthermore, the bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch includes an electromagnetic buffer module comprising a coil and a barrel, with the coil wound around the outside of the barrel.

[0008] Furthermore, the bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch includes a segmented magnetic cartridge case module comprising a segmented outer shell, magnets, and a segmented pre-tensioning ring. The segmented outer shell is composed of multiple identical aluminum fan-shaped segments with bases, which are assembled into a cylindrical body for holding the bird body. Each segment has three grooves arranged sequentially from the open end to the bottom end on both sides. Corresponding grooves of two adjacent segments are combined into a mounting slot, and a magnet is placed in each mounting slot. The segmented pre-tensioning ring includes three identical circular segments, balls, and ball screws. The two ends of each circular segment are respectively provided with plugs and slots with complementary shapes and structures. The three circular segments are connected in series to form a segmented pre-tensioning ring. The outer edge of each circular segment has a ball groove. The two ends of the ball screw are fixedly connected to the two ends of the ball groove. The ball has a through hole in the middle, the diameter of which is larger than the diameter of the ball screw. Multiple balls are mounted on the ball screw and located in the ball groove.

[0009] Furthermore, the bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch includes a magnetic cartridge case auxiliary installation module comprising a push rod, a push plate, and a cylindrical tube. The cylindrical tube has three stepped holes inside: a small-diameter hole, a medium-diameter hole, and a large-diameter hole. The small-diameter hole is used to place the push plate, the medium-diameter hole is used to place the segmented magnetic cartridge case module, and the large-diameter hole is used to align the cannon barrel. The push plate is a disc structure with a threaded hole in the center. One end of the push rod is threaded, and the end cap of the cylindrical tube has a central hole. The push rod passes through the central hole and is screwed together with the push plate.

[0010] Furthermore, the bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch includes a magnetic cartridge case recovery module comprising a recovery chamber shell, a recovery chamber top cover, a primary buffer structure, a secondary buffer structure, and a tertiary buffer structure. The primary buffer structure, secondary buffer structure, and tertiary buffer structure are disposed within the recovery chamber shell, and the recovery chamber top cover covers the top of the recovery chamber shell.

[0011] Furthermore, the bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch has a recovery chamber shell that is a cuboid structure with only four surfaces, consisting of a bottom wall, two side walls, and a rear end wall. A cylinder is provided at the center of the rear end wall, and a long slot is provided at the top of the rear end wall. Four equidistant annular slots are provided on the outer front end of the cylinder, and four equidistant U-shaped slots are provided on the inner sides of the bottom wall and the two side walls. The annular slots and U-shaped slots are positioned corresponding to each other.

[0012] Furthermore, the bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch includes a recovery chamber top cover comprising a cover body, handles, end blocks, and front blocks. The upper end of the cover body is provided with multiple handles; the lower rear end of the cover body is provided with an end block for installation in conjunction with a long slot; the lower front end of the cover body is provided with four equidistant front blocks for installation in conjunction with four U-shaped slots; and the lower end of the front blocks is provided with a rectangular slot.

[0013] Furthermore, the bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch includes a primary buffer structure comprising a ring-shaped rope fastener, a rectangular rope fastener, and an elastic rope. Multiple rope hooks are evenly distributed on the outer edge of the ring-shaped rope fastener, and four ring-shaped rope fasteners are installed on four annular slots. The rectangular rope fastener is a rectangular frame structure with rope hooks on the left and right sides or top and bottom sides. Four rectangular rope fasteners are installed in four U-shaped slots in alternating configurations of two specifications. The tops of the four rectangular rope fasteners are fitted together with the four rectangular slots. The elastic rope connects the ring-shaped rope fastener and the rectangular rope fastener through rope hooks, forming a four-layer elastic mesh structure.

[0014] Furthermore, the bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch has a secondary buffer structure made of polyamide fabric. The airbag has a circular hole in the middle and is fitted onto the cylinder, adjacent to the innermost annular rope fastener. The airbag is equipped with four one-way valves for inflation and deflation.

[0015] Furthermore, the bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch has a three-stage buffer structure including a rubber plate and four springs. The rubber plate has a mounting hole at its center and is fitted onto the cylinder, adjacent to the airbag. Four springs are evenly distributed between the rubber plate and the rear end wall.

[0016] The beneficial effects of this invention are as follows: 1. This invention can effectively achieve the smooth separation of the bird body and the magnetic cartridge case, ensuring the stable flight state of the bird body after launch, and also realizes the recycling of the magnetic cartridge case, thereby improving the service life of the magnetic cartridge case.

[0017] 2. The cartridge case structure of this invention uses a magnetic cartridge case, and deceleration and separation are achieved by a coil carrying a reverse current, which effectively utilizes the convenience of electromagnetic launch devices.

[0018] 3. This invention adopts a unique segmented structure design, which is designed to ensure that the bird can maintain an ideal flight posture after separation. The unique feature of this segmented structure is that magnets are installed between each segment. The magnets are in contact with the same polarity and will generate a repulsive force. When there is no barrel to restrict it, the repulsive force generated between the magnets will cause the magnetic cartridge case to complete the segmentation without relying on additional external force.

[0019] 4. This invention designs a unique magnetic cartridge case recycling device, which achieves three-stage buffering and energy absorption through braided rope, airbag and spring in sequence, ensuring the recycling and reuse of the split magnetic cartridge case, greatly improving the durability and reusability of the magnetic cartridge case, and extending its service life.

[0020] 5. This invention innovatively incorporates an auxiliary assembly device specifically designed for the magnetic induction cartridge case structure, ensuring that the magnetic induction cartridge case can be smoothly loaded into the gun barrel even when faced with magnetic repulsion effects, thereby significantly improving operational efficiency. Attached Figure Description

[0021] Figure 1 A schematic diagram of the combination of the electromagnetic buffer module and the segmented magnetic induction shell module; Figure 2 for Figure 1 The left view; Figure 3 Schematic diagram of the valve body; Figure 4 This is a schematic diagram of a segmented pre-tightening ring; Figure 5 A schematic diagram of the annular segment, ball bearings, and ball bearing screw; Figure 6 Schematic diagram of the auxiliary installation module for the magnetic induction shell; Figure 7 This is a schematic diagram of a magnetic cartridge case recovery module; Figure 8 A schematic diagram of a magnetic missile casing recovery module without the recovery compartment top cover; Figure 9 This is a schematic diagram of the top cover of the recovery compartment; Figure 10 This is a schematic diagram of the outer shell of the recovery capsule; Figure 11 Schematic diagram of a circular rope fastener; Figure 12 A schematic diagram of a rectangular rope fastener with rope hooks on the top and bottom, and a combination of an elastic rope and a circular rope fastener. Figure 13A schematic diagram of a rectangular rope fastener with rope hooks on both sides, and a combination of an elastic rope and a circular rope fastener. Figure 14 This is a schematic diagram of an airbag; Figure 15 This is a schematic diagram of a three-level buffer structure. Detailed Implementation

[0022] like Figure 1-15 As shown, a bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch includes an electromagnetic buffer module, a segmented magnetic cartridge case module, a magnetic cartridge case auxiliary installation module, and a magnetic cartridge case recovery module. The segmented magnetic cartridge case module is disposed in the electromagnetic buffer module; the magnetic cartridge case auxiliary installation module is used to push the segmented magnetic cartridge case module into the electromagnetic buffer module to achieve auxiliary installation; the magnetic cartridge case recovery module is used to recover the magnetic cartridge case after launch.

[0023] The electromagnetic buffer module includes a coil 2 and a barrel 1, with the coil 2 wound around the outside of the barrel 1.

[0024] The segmented magnetic shell module includes a segmented outer shell 4, a magnet, and a segmented preload ring 6. The segmented outer shell 4 consists of six identical aluminum fan-shaped lobes 8 with bases, which are assembled into a cylindrical body for holding a bird 3. Each lobe 8 has three grooves 5 arranged sequentially from the open end to the bottom on both sides. Corresponding grooves 5 of two adjacent lobes 8 are combined into a mounting slot, and a magnet is placed in each mounting slot. The segmented preload ring 6 includes three identical circular segments 1. 0. Ball bearings 7 and ball bearing rods 9. The two ends of the annular segment 10 are respectively provided with plugs 11 and slots 12 with complementary shapes and structures. The three annular segments 10 are connected together to form a segmented preload ring 6. The outer edge of the annular segment 10 is provided with a ball groove. The two ends of the ball bearing rod 9 are respectively fixedly connected to the two ends of the ball groove. The ball bearing 7 has a through hole in the middle. The diameter of the through hole is larger than the diameter of the ball bearing rod 9. Multiple balls bearing 7 are installed on the ball bearing rod 9 and located in the ball groove.

[0025] The magnetic cartridge case auxiliary installation module includes a push rod 13, a push plate 14, and a cylindrical tube 15. The cylindrical tube 15 has three stepped holes inside: a small diameter hole, a medium diameter hole, and a large diameter hole. The small diameter hole is used to place the push plate 14, the medium diameter hole is used to place the segmented magnetic cartridge case module, and the large diameter hole is used to align the gun barrel 1. The push plate 14 is a disc structure with a threaded hole in the center. One end of the push rod 13 is threaded. The end cap of the cylindrical tube 15 has a central hole. The push rod 13 passes through the central hole and is screwed together with the push plate 14.

[0026] The magnetic cartridge case recovery module includes a recovery chamber shell 16, a recovery chamber top cover, a primary buffer structure, a secondary buffer structure, and a tertiary buffer structure. The primary buffer structure, the secondary buffer structure, and the tertiary buffer structure are disposed in the recovery chamber shell 16, and the recovery chamber top cover covers the top of the recovery chamber shell 16.

[0027] The outer shell 16 of the recovery compartment is a cuboid structure with only four surfaces, consisting of a bottom wall, two side walls and a rear end wall. A cylinder 17 is provided at the center of the rear end wall, and a long slot 25 is provided at the top of the rear end wall. Four equidistant annular slots 29 are provided on the outer front end of the cylinder 17. Four equidistant U-shaped slots 30 are provided on the inner side of the bottom wall and the two side walls. The annular slots 29 and the U-shaped slots 30 are positioned corresponding to each other.

[0028] The top cover of the recovery compartment includes a cover body 18, handles 19, end latches 26, and front latches 27. The upper end of the cover body 18 is provided with four handles 19; the lower rear end of the cover body 18 is provided with end latches 26 for installation in conjunction with long latches 25; the lower front end of the cover body 18 is provided with four equidistant front latches 27 for installation in conjunction with four U-shaped latches 30; the lower end of the front latches 27 is provided with rectangular latches 28.

[0029] The primary buffer structure includes a ring-shaped rope fastener 31, a rectangular rope fastener 21, and an elastic rope 20. The outer edge of the ring-shaped rope fastener 31 is evenly provided with twelve rope hooks 32, and four ring-shaped rope fasteners 31 are installed on four annular slots 29. The rectangular rope fastener 21 is a rectangular frame structure with fifteen rope hooks 32 on each of the left and right sides or the top and bottom sides. Four rectangular rope fasteners 21 are installed in four U-shaped slots 30 in two alternating ways. The tops of the four rectangular rope fasteners 21 are fitted together with the four rectangular slots 28. The elastic rope 20 connects the ring-shaped rope fasteners 31 and the rectangular rope fasteners 21 through the rope hooks 32 to form a four-layer elastic mesh structure.

[0030] The secondary buffer structure is an airbag 22 made of polyamide fabric. The airbag 22 has a circular hole 35 in the middle. The airbag 22 is sleeved on the cylinder 17 and is adjacent to the innermost annular rope fastener 31. The airbag 22 is equipped with four one-way valves 34 for inflation and deflation.

[0031] The three-stage buffer structure includes a rubber plate 23 and four springs 24. The rubber plate 23 has a mounting hole 36 at its center. The rubber plate 23 is fitted onto the cylinder 17 and is adjacent to the airbag 22. Four springs 24 are evenly arranged between the rubber plate 23 and the rear end wall.

[0032] The assembly process of the bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch includes the following steps: Step 1: Assemble the segmented magnetic induction shell module; Step 1.1: Insert the magnets into the grooves 5 of the petal 8 one by one, and then assemble the six petals 8 into a cylindrical body; Step 1.2: Set the seven balls 7 onto the ball screw 9, and then fix the two ends of the ball screw 9 to the two ends of the ball groove of the annular segment 10 respectively. Step 1.3: Connect the three assembled circular segments 10 end to end through the plug 11 and slot 12 to form a segmented pre-tightening ring 6; Step 1.4: Place the assembled segmented pre-tightening ring 6 onto the outside of the cylindrical body; Step 2: Assemble the magnetic induction shell auxiliary installation module and install the assembled segmented magnetic induction shell module into the gun barrel 1; Step 2.1: Place the push plate 14 into the cylindrical tube 15, and then tighten the push rod 13 and the push plate 14 with threads; Step 2.2: Place the bird body 3 into the assembled segmented magnetic induction shell module, and then place the assembled segmented magnetic induction shell module into the cylindrical tube 15. Step 2.3: Align the cylindrical tube 15 with the gun barrel 1, push the push rod 13, and push the segmented magnetic induction cartridge module into the gun barrel 1; Step 3: Assemble the magnetic shell recovery module; Step 3.1: Assemble the three-stage buffer structure, install the four springs 24 onto the rubber plate 23, then fit the rubber plate 23 onto the cylinder 17, and push the four springs 24 against the rear end wall of the recovery chamber shell 16. Step 3.2: Assemble the secondary buffer structure, inflate the airbag 22 with gas through the one-way valve 34, and then put the airbag 22 on the cylinder 17 and make it fit tightly against the rubber plate 23. Step 3.3: Assemble the primary buffer structure. Place the four annular rope fasteners 31 onto the four annular slots 29, and place the four rectangular rope fasteners 21 into the U-shaped slots 30. Then, connect the elastic rope 20 to the annular rope fasteners 31 and the rectangular rope fasteners 21 in sequence through the rope hooks 35. Step 3.4: Install the top cover of the recovery compartment by engaging the end block 26 with the long slot 25, the front block 27 with the U-shaped slot 30, and the rectangular slot 28 with the top of the rectangular rope fastener 21, and fix it to the outer shell 16 of the recovery compartment. Step 4: Perform electromagnetic emission.

[0033] The working process of the bird body and cartridge case separation and recovery device based on multi-stage coil electromagnetic launch is as follows: When the segmented magnetic cartridge case module carrying the bird body 3 accelerates to the coil 2, the coil 2 is energized with a reverse current, thereby generating a reverse electromagnetic force acting on the segmented magnetic cartridge case module carrying the bird body 3. Since the segmented magnetic cartridge case module has magnetic induction characteristics, it is subjected to a reverse Lorentz force, thus decelerating. Since the bird body 3 does not have magnetic induction characteristics, it does not decelerate. When the coil 2 is energized with a reverse current, the segmented magnetic cartridge case module and the bird body 3 will produce different deceleration effects, thereby achieving the separation of the bird body 3 from the segmented magnetic cartridge case module. Since deceleration does not stop their movement or reverse their movement, there will be residual velocity, so they will still move forward. Due to the large repulsive force between the like poles of the magnets, when the segmented magnetic cartridge case module moves forward out of the barrel 1, the six lobes 8 will open the segmented pre-tensioning ring 6, thereby achieving the segmentation of the magnetic cartridge case. Bird body 3 is launched into cylinder 17. After splitting, the six segments 8 will rush towards the magnetic shell recovery module. After passing through the primary buffer structure, the six segments 8 will impact the elastic rope 20, thereby releasing some force and achieving primary deceleration. When the primary buffer structure fails to absorb all the energy, the six segments 8 will impact the secondary buffer structure. When the airbag 22 is impacted, it will release gas through the one-way valve 34 to achieve buffering and energy absorption. When the primary and secondary buffer structures fail to absorb all the energy, the six segments 8 will impact the tertiary buffer structure. The spring 24 and rubber plate 23 will complete the final energy absorption, and finally, the magnetic shell will be recovered and reused through the tertiary buffer structure.

Claims

1. A bird body and shell separation and recovery device based on multi-stage coil electromagnetic emission, characterized in that, The application relates to a magnetic shell module for a bird shooting device, which comprises an electromagnetic buffering module, a split magnetic shell module, a magnetic shell auxiliary installation module and a magnetic shell recycling module.

2. The bird body and shell separation and recovery device based on multi-stage coil electromagnetic emission according to claim 1, characterized in that, The electromagnetic buffering module comprises a coil and a barrel, and the coil is wound on the outside of the barrel.

3. The bird body and shell separation and recovery device based on multi-stage coil electromagnetic emission according to claim 2, characterized in that, The split magnetic shell module comprises a split shell, a magnet and a segmented pre-tightening ring; the split shell is composed of a plurality of aluminum sector-shaped petals with the same shape and a bottom, and the plurality of petals are assembled into a cylindrical body for placing a bird body; the two sides of the petal are respectively provided with three grooves arranged in sequence from an open end to a bottom end, the corresponding grooves of two adjacent petals are combined into an installation groove, and a magnet is placed in each installation groove; the segmented pre-tightening ring comprises three circular ring segments with the same shape, balls and a ball rod, the two ends of the circular ring segment are respectively provided with a plug and a plug groove which are complementary in shape, the three circular ring segments are connected together to form the segmented pre-tightening ring, the outer edge of the circular ring segment is provided with a ball groove, the two ends of the ball rod are fixedly connected with the two end heads of the ball groove, a through hole is formed in the middle of the ball, the diameter of the through hole is larger than the diameter of the ball rod, and a plurality of balls are installed on the ball rod and located in the ball groove.

4. The bird body and shell separation and recovery device based on multi-stage coil electromagnetic emission according to claim 2, characterized in that, The magnetic shell auxiliary installation module comprises a push rod, a push disc and a cylindrical barrel, the inside of the cylindrical barrel is provided with a three-stage stepped hole, which is a small-diameter hole, a medium-diameter hole and a large-diameter hole, the small-diameter hole is used for placing the push disc, the medium-diameter hole is used for placing the split magnetic shell module, and the large-diameter hole is used for aligning the barrel; the push disc is a disc structure with a threaded hole in the center, one end of the push rod is provided with a thread, the end cover of the cylindrical barrel is provided with a center hole, and the push rod is screwed together with the push disc through the center hole.

5. The bird body and shell separation and recovery device based on multi-stage coil electromagnetic emission according to claim 1, characterized in that, The magnetic shell recycling module comprises a recycling cabin shell, a recycling cabin top cover, a first-stage buffering structure, a second-stage buffering structure and a third-stage buffering structure, the first-stage buffering structure, the second-stage buffering structure and the third-stage buffering structure are arranged in the recycling cabin shell, and the recycling cabin top cover covers the top of the recycling cabin shell.

6. The bird body and shell separation and recovery device based on multi-stage coil electromagnetic emission according to claim 5, characterized in that, The recycling cabin shell is a cuboid structure with only four surfaces and is composed of a bottom wall, two side walls and a rear end wall, a cylinder is arranged at the center of the rear end wall, a long clamping groove is arranged at the top end of the rear end wall, four equidistant annular clamping grooves are arranged on the front end of the cylinder, four equidistant U-shaped clamping grooves are arranged on the inner sides of the bottom wall and the two side walls, and the annular clamping grooves and the U-shaped clamping grooves are positionally corresponding.

7. The bird body and shell separation and recovery device based on multi-stage coil electromagnetic emission according to claim 6, characterized in that, The recycling cabin top cover comprises a cover body, a handle, a tail end clamping block and a front end clamping block, a plurality of handles are arranged on the upper end of the cover body; a tail end clamping block is arranged at the rear lower end of the cover body and is used for cooperating with the long clamping groove for installation; four equidistant front end clamping blocks are arranged at the front lower end of the cover body and are used for cooperating with the four U-shaped clamping grooves for installation; and a rectangular clamping groove is arranged at the lower end of the front end clamping block.

8. The bird body and shell separation and recovery device based on multi-stage coil electromagnetic emission according to claim 7, characterized in that, The primary buffer structure comprises a ring fixed rope device, a rectangular fixed rope device and elastic ropes, the outer edge of the ring fixed rope device is uniformly provided with a plurality of rope hooks, and four ring fixed rope devices are installed on four ring clamping grooves; the rectangular fixed rope device is a rectangular frame structure provided with rope hooks on the left and right sides or the upper and lower sides, four rectangular fixed rope devices are installed in four U-shaped clamping grooves in an alternating manner according to two specifications; the top ends of the four rectangular fixed rope devices are cooperatively installed together with the four rectangular clamping grooves; the elastic ropes are connected with the ring fixed rope device and the rectangular fixed rope device through the rope hooks, and form a four-layer elastic net structure.

9. The bird body and shell separation and recovery device based on multi-stage coil electromagnetic emission according to claim 8, characterized in that, The secondary buffer structure is an air bag made of polyamide fabric, the air bag is provided with a circular hole in the middle, the air bag is sleeved on the cylinder and is adjacent to the innermost ring fixed rope device; the air bag is provided with four one-way valves for air charging and discharging.

10. The bird body and shell separation and recovery device based on multi-stage coil electromagnetic emission according to claim 9, characterized in that, The tertiary buffer structure comprises a rubber plate and four springs, the center of the rubber plate is provided with a mounting hole, the rubber plate is sleeved on the cylinder and is adjacent to the air bag; the rubber plate is uniformly provided with four springs between the rubber plate and the rear end wall.

Images