Electromagnetic transmitting device

Abstract

The utility model discloses an electromagnetic transmitting device which comprises a track support, a coil assembly and a coil support, a transmitting track is arranged on the track support, the coil assembly at least comprises a pair of exciting coils which are connected in series or in parallel, the coil assembly is symmetrically distributed on the left side and the right side of the transmitting track, and the axis direction of the exciting coils is perpendicular to the direction of the transmitting track. An opening is formed in the launching track, one end of the opening at least extends to the position between the symmetrically-distributed coil sets, and a launcher can penetrate through the opening to reach the launching position on the launching track. The coil support is made of magnetic conductive materials, the two ends of the coil support penetrate into the axes of the exciting coils on the two sides of the launching track respectively, and the launcher is triggered from the launching position under the action of the coil assembly and the coil support.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic launch technology, and more specifically, to an electromagnetic launch device. Background Technology

[0002] Existing electromagnetic launchers typically require a push rod or similar device to deliver the projectile to the launchable area before firing. This necessitates the use of push rods and other such devices, increasing the number of components, manufacturing costs, and the likelihood of malfunctions. Furthermore, the process of delivering the projectile to the launchable area by the push rod or similar device takes time, impacting continuous firing efficiency and further increasing the probability of failure.

[0003] Patent CN118532999A discloses an electromagnetic propulsion system that, with its special magazine design and unique projectile front-end structure, enables the projectile to be launched directly from a zero-velocity state in the launch direction without the need for a push rod. However, if the projectile has other structures, such as a non-magnetic material at the front end, the push rod-free firing function cannot be achieved.

[0004] The prior art CN212512693U discloses an electromagnetic launching device that uses a power element to pressurize and supply power to a capacitor, and accelerates the projectile by controlling the release of energy stored inside the capacitor. The secondary coil is located on both sides of the launching track to accelerate the flanks of the projectile. It can launch projectiles with flanks, but it cannot target projectiles whose front end is unfavorable to be launched by the electromagnetic launching device, or cannot be launched by the electromagnetic launching device.

[0005] In view of the above technical problems, this utility model is hereby introduced. Utility Model Content

[0006] The main objective of this invention is to provide an electromagnetic launching device suitable for various types of launchers, especially to solve the technical problem of launching launchers that are difficult or impossible to launch by an electromagnetic launching device without a push rod.

[0007] To achieve the above objectives, this utility model proposes an electromagnetic launching device, including a track support, a coil group, and a coil support. The track support is provided with a launching track, and the coil group includes at least a pair of excitation coils connected in series or in parallel. The excitation coils are symmetrically distributed on both sides of the launching track, and the axial direction of the excitation coils is perpendicular to the direction of the launching track.

[0008] The launch track has an opening, and one end of the opening extends at least between the symmetrically distributed coil groups. The opening can accommodate a projectile to pass through to reach the launch position on the launch track.

[0009] The coil support is made of magnetic conductive material, and the two ends of the coil support are inserted into the center of the excitation coil on both sides of the launching track, and the launching object is launched from the launching position under the action of the coil group and the coil support.

[0010] Further, the excitation coil comprises coil wire discs and coil wires, the coil wire discs on both sides of the launching track are parallel to each other, the coil wire disc comprises an inner disc surface close to the launching track and an outer disc surface away from the launching track, and the two side edges of the launching track are adjacent to the inner disc surfaces of the excitation coils on both sides.

[0011] Further, the coil support comprises support side plates on both sides and a support connecting plate connected between the support side plates, the support side plates are matched with the outer disc surfaces, and the support side plates are provided with insertion parts matched with the inner surfaces of the center hole of the excitation coil.

[0012] Further, the cross-sectional area of the insertion part accounts for at least 20% of the area of the excitation coil, and the support connecting plate is located below or behind the launching track.

[0013] Further, the end surface of the insertion part protrudes from or is flush with the inner disc surface, and the two side edges of the launching track are located below the position of the insertion part.

[0014] Further, the end surface of the insertion part protruding from the inner disc surface is provided as an arc surface.

[0015] Further, the electromagnetic launching device further comprises an induction assembly, and the induction assembly is adjacent to the launching track.

[0016] Further, the electromagnetic launching device further comprises a current control assembly, and the current control assembly controls the on-off of the current in the coil group according to the detection feedback of the induction assembly.

[0017] Further, the surface of the launching track is provided as an arc surface, the front end of the track support comprises a launching tube, the launching tube is communicated with the launching track, and the inner surface of the launching tube is matched with the outer surface of the launching object.

[0018] Further, the left and right sides of the track support are respectively movably connected with the positions below the center hole of the excitation coil on the track support, so that the installation position of the excitation coil can be adjusted.

[0019] Alternatively, the track support and the inner disc surfaces of the coil wire discs on both sides of the track support are integrated.

[0020] The technical scheme of the utility model at least has the following beneficial effects:

[0021] 1. The electromagnetic launching device of the utility model through setting the coil group and the coil support in the position of the launching track, the front section of the launched object can be immersed between the coil groups, so that the rear section of the launched object with magnetic material can infinitely approach the excitation coil in the launching direction, without the help of push rod and other devices, so as to reduce the length of the barrel, and without additional power consumption, the launched object can be launched directly from the launching position in zero speed state.

[0022] 2. The electromagnetic launching device of the utility model through designing the shape of the coil support, the coil group can be supported, the structural strength of the electromagnetic launching device is improved, and the direction of the magnetic induction line is guided, the magnetic resistance is reduced, the magnetic flux is increased, so as to improve the firing efficiency; through further designing the shape and size of the insertion part, the excitation coil is better fixed, and the position relationship between the coil wire disc and the track support is not hindered, and the launched object is not hindered.

[0023] 3. The electromagnetic launching device of the utility model through setting the induction assembly and the current control assembly, when the launched object is detected to leave the launching position due to being launched, the current control assembly can immediately cut off the power supply of the excitation coil to prevent affecting the launching of the launched object, and when the launched object is detected to reach the launching position, the excitation coil can be immediately powered on.

[0024] 4. The electromagnetic launching device of the utility model through designing the adjustable mounting position of the excitation coil on the track support, the launched object with different front section lengths can be launched, so that the electromagnetic launching device is more widely applicable.

[0025] 5. The electromagnetic launching device of the utility model is relatively simple in structure, without setting the push rod and other auxiliary tools, the processing cost is lower, the structural stability is better, the failure rate is lower, the launching efficiency is higher, and it is especially suitable for the projectile type with the front section in the shape of a sharp spike, an elongated shape and the like, and the front section in the non-ferromagnetic material such as rubber, stainless steel and brass, and the replaceable front section of the projectile, and the shape of the launched object is not limited. BRIEF DESCRIPTION OF DRAWINGS

[0026] The drawings accompanying the specification of the utility model form a part of the utility model and serve to provide further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof serve to explain the utility model, and do not constitute an improper limitation on the utility model. In the drawings:

[0027] Figure 1 The front view of the electromagnetic launching device of embodiment 1 is shown;

[0028] Figure 2 The left side view of the electromagnetic launching device of embodiment 1 is shown;

[0029] Figure 3A bottom view of the electromagnetic launching device of embodiment 1 is shown.

[0030] Figure 4 A back view of the electromagnetic launching device of embodiment 1 is shown.

[0031] Figure 5 A launching object entering a launching position of the electromagnetic launching device of embodiment 1 is shown.

[0032] Figure 6 A perspective view of the coil support of embodiment 1 is shown.

[0033] Figure 7 A launching object entering a launching position of the electromagnetic launching device of embodiment 2 is shown.

[0034] Figure 8 A perspective view of the coil support of embodiment 2 is shown.

[0035] Figure 9 A left side view of the electromagnetic launching device of embodiment 3 is shown.

[0036] Among the above drawings, the following reference signs are included:

[0037] 1, track support; 11, launching track; 12, launching tube; 2, coil group; 3, coil support; 31, support connecting plate; 32, support side plate; 33, insertion part; 4, excitation coil; 41, outer disc surface; 42, inner disc surface; 5, launching object; 6, belt. DETAILED DESCRIPTION

[0038] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0039] The present application will be described in detail below with reference to the drawings and in combination with embodiments. The terms "comprise" and "include" are used in the sense that there are features, but do not exclude the presence or addition of one or more other features; the terms "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; in addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0040] In the description, it is necessary to point out that, unless there is explicit provision and limitation, the terms "mount", "connect", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according of the specific circumstances. In addition, in the description of the utility model, unless otherwise stated, the meaning of "a plurality of" is two or more than two.

[0041] Embodiment 1:

[0042] The utility model provides an electromagnetic launching device, combines Figures 1-4 As shown, it comprises track support 1, coil group 2 and coil support 3, track support 1 is equipped with launching track 11, and the launching object is launched along launching track 11.

[0043] In the utility model, launching track 11 can be integrally designed with track support 1, or can be split design so that launching track 11 is assembled to track support.

[0044] The electromagnetic launching device at least includes one coil group 2, and each coil group 2 at least includes a pair of excitation coils 4 connected in series or in parallel with each other. Coil group 2 is symmetrically distributed on the left and right sides of launching track 11, and in the embodiment, a pair of excitation coils 4 are symmetrically arranged on the left and right sides of launching track 11. In some other embodiments, if there are multiple pairs of excitation coils 4, the multiple pairs of excitation coils 4 are symmetrically arranged on the left and right sides of launching track 11.

[0045] The axis direction of excitation coil 4 is perpendicular to the direction of launching track 11. Specifically, excitation coil 4 includes coil wire disc and winding, coil wire disc is vertically erected on the side of launching track 11, and the coil wire discs on the two sides of launching track 11 are parallel to each other, one side of launching track 11 is provided with an opening, specifically, the upper portion of launching track 11 is provided with an opening, and the opening extends to at least between the symmetrically distributed coil groups 2 at one end, so that launching track 11 and the coil wire discs on both sides form a half-enclosed shape.

[0046] In the embodiment, the upper portion of launching track 11 is designed as an open type, and the lower portion is designed as a non-open type, that is, the upper portion of the part between excitation coils 4 on the axis of launching track 11 is open, so that the launching object can enter between the excitation coils from top to bottom and be received by launching track 11.

[0047] In other embodiments, smaller or axially offset openings may also be designed. For example, most of the area between the excitation coils may be without openings, while a small portion of the area may be provided with openings, allowing one end of the projectile to enter the small portion of the area between the excitation coils.

[0048] The coil support 3 is made of a magnetically conductive material. Preferably, the coil support is made of iron, but it can also be made of other magnetically conductive materials such as silicon steel sheets. The two ends of the coil support 3 are respectively inserted into the shafts of the excitation coils 4 on both sides of the transmitting track 11.

[0049] In this application, the launcher is defined as being launched from the rear end of the track support 1 towards the front end. The area beyond the rear end of the track support 1 is defined as its rear, and the area beyond the front end is defined as its front. For some types of launchers, they may be assembled from a non-magnetic or elongated front section and a magnetic rear section, with the front section of the launcher positioned close to the front end of the track support during launch.

[0050] Combination Figure 5 As shown, the launcher 5 can directly reach the launch position on the launch track 11 through the opening above the track support 1, with the opening located on the opposite side of the launch track 11. This ensures that at least a portion of the front section of the launcher 5 at the launch position is positioned between the excitation coils 4 on both sides, and that the rear magnetic portion of the launcher is closer to the edge of the magnetic field generated by the excitation coil 4. Under the action of the energized excitation coil 4, the launcher is fired from its stationary state at the launch position.

[0051] By setting the positions of the coil group and coil support on the launch track, the front section of the projectile can be submerged between the coil groups, allowing the rear section of the projectile, which contains magnetic material, to approach the excitation coil infinitely in the launch direction. This eliminates the need for push rods or other devices, thus reducing the barrel length. Furthermore, it eliminates the need for additional electrical energy consumption, enabling the projectile to be launched directly from the launch position from a zero-velocity state in the launch direction.

[0052] like Figure 1 As shown, the excitation coil 4 includes a coil coil and a winding. The coil coils located on both sides of the launch track 11 are parallel to each other. The coil coil includes an inner coil surface 42 close to the launch track 11 and an outer coil surface 41 away from the launch track. The two sides of the launch track 11 are adjacent to the inner coil surfaces 42 of the excitation coils 4 on both sides.

[0053] Combination Figure 6 As shown, the coil support 3 includes support side plates 32 located on both sides, and a support connecting plate 31 connected between the support side plates 32. The support side plates 32 cooperate with the outer disk surface 41. The support side plates 32 are provided with an insertion part 33, which cooperates with the inner surface of the shaft hole of the excitation coil 4.

[0054] Preferably, the end surface of the insertion portion 33 is flush with or extends beyond the inner side disc surface 42 of the coil wire disc. The two side edges of the launch rail 11 are located below the position of the insertion portion 33. The cross-sectional area of the insertion portion 33 accounts for at least 20% of the area of the excitation coil 4.

[0055] In other embodiments, the cross-sectional area of the insertion portion 33 accounts for at least 30%, 40% or 50% of the area of the excitation coil 4. In some embodiments, the cross-sectional area of the insertion portion 33 accounts for 50%-60% of the area of the excitation coil 4, which achieves a better balance between the coil loss, weight and magnetic flux of the electromagnetic launching device.

[0056] By designing the shape of the coil support, the coil group can be supported, the structural strength of the electromagnetic launching device can be improved, the magnetic flux can be increased, the magnetic resistance can be reduced, the direction of the magnetic induction lines can be guided, and thus the magnetic force acting on the launched object can be increased, and the firing efficiency can be improved.

[0057] In the present application, the "area of the excitation coil" refers to the area surrounded by the radial outer periphery of the wire winding in the excitation coil. The present embodiment limits the insertion portion 33 to occupy a certain area of the excitation coil 4, thereby enhancing the magnetic flux.

[0058] Further preferably, in combination with Figure 1 As shown in the figure, in the present embodiment, the end surface of the insertion portion 33 extends beyond the inner side disc surface 42, and the end of the insertion portion 33 is engaged with the two side edges of the launch rail 11. The support connecting plate 31 is located below the launch rail 11 and the excitation coil.

[0059] Preferably, the cross-sectional shape of the insertion portion 33 is polygonal. In the present embodiment, the cross-sectional shape of the insertion portion 33 is rectangular. By further designing the shape and size of the insertion portion, the excitation coil is better fixed, and the positional relationship between the coil wire disc and the rail support is not hindered, and the launched object is not hindered.

[0060] Further preferably, the portion of the end surface of the insertion portion 33 extending beyond the inner side disc surface 42 can be designed as an arc surface, and cooperates with the outer surface of the launched object on the launch rail, so that the end surface of the insertion portion 33 can be closer to the launched object.

[0061] In addition, the electromagnetic launching device further comprises an induction assembly and a current control assembly. The induction assembly is adjacent to the launching track 11, for example, can be arranged on the track support 1 or the rear end of the track support 1, and is used to detect whether there is a launching object at the launching position and feed back the detection result to the current control assembly. The induction assembly can adopt various ways such as light induction, weight induction or electromagnetic induction to obtain the information of whether there is a launching object at the launching position. The current control assembly has a signal receiving function and can control the on-off of the current in the coil group 2 according to the detection feedback of the induction assembly. Specifically, when it is detected that the launching object 5 is away from the launching position due to being launched, the energizing coil can be immediately powered off through the control of the current control assembly, so as to prevent the magnetic field generated by the energizing coil from affecting the launching of the launching object; when it is detected that the launching object reaches the launching position, the energizing coil can also be immediately powered on through the current control assembly, so as to improve the launching efficiency.

[0062] Preferably, in combination Figures 1-4 As shown, the surface of the launching track 11 is arranged as a smooth arc surface, the front end of the track support 1 comprises a launching tube 12, the launching tube 12 is communicated with the launching track 11, and the inner surface of the launching tube 12 cooperates with the outer surface of the launching object. Further preferably, the inner surface of the launching tube 12 is arranged in a gap cooperation with the outer surface of the launching object, so that the launching object can just pass through, and the inner diameter of the launching track 11 is arranged to be slightly larger than the outer diameter of the launching object, or preferably is arranged as a gradually changing inner diameter, which is larger at a farther distance from the launching tube 12, so as to limit the launching path of the launching object in the firing state, and make the flight path of the launching object keep centered after being fired.

[0063] In other embodiments, the launching object is not limited to the conventional ball, cylindrical type or other conventional projectiles, but can be a nail, a dart, a strip, a block, an irregular shape or any other launching object that can be launched by the electromagnetic gun. Therefore, the surface shape of the launching track 11 and the cross-sectional shape of the launching tube 12 can be changed accordingly.

[0064] The left and right sides of the track support 1 are respectively connected with the positions below the upper axial holes of the energizing coils 4, which can be fixed connection or movable connection. The movable connection is more flexible and variable, and is more convenient for disassembly and assembly.

[0065] Alternatively, an integrated molding scheme can be adopted, and the track support 1 and the inner side disc surfaces 42 of the coil wire discs on the two sides are integrated into an integral structure, so as to improve the structural strength and production efficiency of the product.

[0066] Preferably, the inner side disc surfaces 42 of the coil wire discs and the side vertical surfaces of the track support 1 can be fixed by screws, rivets, buckles or the like. This fixing mode is flexible and easy to install. In the case of using screws, the disc surface for installing the screws is slightly larger in diameter than the other disc surface, so as to facilitate the installation of fasteners such as screws.

[0067] In addition, the side vertical surface of the track support 1 can be provided with multiple positions for fixing the coil wire disc, so that the installation position of the coil set or the number of coil sets can be flexibly adjusted according to the length of the projectile, to adapt to projectiles of different lengths. In addition, the length of the space in the track support where the projectile is initially located can also be changed to adapt to projectiles of different lengths.

[0068] Embodiment 2

[0069] In combination Figure 7 and Figure 8 As shown in FIG. 6, the shape and position of the coil support 3 and the arrangement of the openings on the launch track 11 are different from those of Embodiment 1. In this embodiment, the launch track 11 is designed to allow the installation of a link belt 6 in the vertical direction, and therefore a hole is provided on the launch track for the link belt 6 to pass through. In order to avoid the installation position of the link belt 6, the position of the support connecting plate 31 is moved towards the front end of the track support, so that it is no longer located below the excitation coil, but does not interfere with the launching of the projectile and the other structures of the track support. Therefore, the upper and lower parts of the launch track 11 of this embodiment are both provided with openings, so that the link belt 6 can pass through.

[0070] In other embodiments, the number and orientation of the openings of the launch track 11 can also be different.

[0071] For example, in another embodiment, opposite openings can be provided on the left and right sides of the launch track 11, and the excitation coils can be arranged symmetrically above and below, so that the projectile enters the excitation coils in the horizontal direction.

[0072] For another example, in another embodiment, one opening can be provided above and the other opening can be provided below and to the right or below and to the left, so that the trajectory of the projectile can be guided in a pre-designed direction.

[0073] For another example, in another embodiment, three or more openings can be provided: one opening above the launch track 11, one opening below the launch track 11 and to the left, and one opening below the launch track 11 and to the right, so that the trajectory of the projectile can be guided in different directions according to different situations.

[0074] In addition, in other embodiments, the projectile can also be guided in ways other than the link belt. For example, in other embodiments, guide rails or other structures arranged inside the launching device can also be used to guide the projectile into the launching position.

[0075] The other arrangements of the electromagnetic launching device of this embodiment are basically the same as those described in Embodiment 1.

[0076] The design of this embodiment allows the installation of a link belt, thereby improving the launching efficiency.

[0077] Embodiment 3:

[0078] In combination Figure 9 As shown in the figure, the bracket connecting plate 31 of the coil bracket 3 is located behind the launching rail 11, so that the effect of installing a belt, etc. can be achieved while simplifying the structure of the coil bracket 3, and correspondingly, the upper and lower parts of the launching rail 11 in the embodiment are also provided with openings. As described above, the number and position of the openings of the launching rail 11 can also be different from the embodiment.

[0079] In other embodiments, for the purpose of fully utilizing the internal space of the launching device, etc., the bracket connecting plate 31 can also be designed at other positions without interfering with the guidance of the launched object, such as being arranged at a position deviated upwardly behind the launching rail or a position deviated downwardly behind the launching rail, etc.

[0080] The other settings of the electromagnetic launching device of the embodiment are basically the same as those described in Embodiment 1.

[0081] In summary, from the above description, it can be seen that the embodiments of the utility model realize the following technical effects:

[0082] 1. The electromagnetic launching device of the utility model realizes that the front section of the launched object can be immersed between the coil groups, the rear section of the launched object with magnetic material can be infinitely close to the excitation coil in the launching direction, and the launched object can be launched directly from the launching position in the zero speed state in the launching direction without the help of a push rod or other devices, thereby reducing the length of the barrel and achieving the launching without additional power consumption.

[0083] 2. The electromagnetic launching device of the utility model can support the coil group by designing the shape of the coil bracket, improve the structural strength of the electromagnetic launching device, guide the direction of the magnetic induction line, reduce the magnetic resistance, increase the magnetic flux, and thereby improve the firing efficiency; by further designing the shape and size of the insertion part, the excitation coil is better fixed, and the position relationship between the coil wire disc and the rail bracket is not hindered, and the launched object is not hindered.

[0084] 3. The electromagnetic launching device of the utility model can immediately cut off the power supply of the excitation coil when detecting that the launched object is away from the launching position due to being launched, so as to prevent the launching of the launched object, and can immediately power on the excitation coil when detecting that the launched object reaches the launching position.

[0085] 4. The electromagnetic launching device of the utility model can adjust the mounting position of the excitation coil on the rail bracket, so that it can adapt to the launching of the launched object with different front section lengths, and the electromagnetic launching device is more widely applicable.

[0086] 5. The electromagnetic launching device of this utility model has a relatively simple structure, does not require auxiliary tools such as push rods, has lower processing costs, better structural stability, lower failure rate, and higher launching efficiency. It is especially suitable for projectiles with a spike-like or slender front end that are difficult to launch, or projectiles with a front end made of non-ferromagnetic materials such as rubber, stainless steel, or brass, as well as projectiles with replaceable front ends, and is not limited to the shape of the projectile.

[0087] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electromagnetic launching device, characterized by The electromagnetic launching device comprises a track support (1), a coil set (2) and a coil support (3), the track support (1) is provided with a launching track (11), the coil set (2) comprises at least a pair of excitation coils (4) connected in series or parallel, the excitation coils (4) are symmetrically distributed on both sides of the launching track (11), and the axis direction of the excitation coils (4) is perpendicular to the direction of the launching track (11); At least one side of the launching track (11) is provided with an opening, and the opening extends to at least between the symmetrically distributed coil sets (2) on one end, and the opening can accommodate a launching object (5) to pass through to reach a launching position on the launching track (11); The coil support (3) is made of a magnetic conductive material, and the coil support (3) penetrates into the axial holes of the excitation coils (4) on both sides of the launching track (11) respectively, and the launching object (5) is launched from the launching position under the action of the coil set (2) and the coil support (3).

2. The electromagnetic launching device of claim 1, wherein: The excitation coil (4) comprises a coil wire disc and a winding, the coil wire discs located on both sides of the launching track (11) are parallel to each other, the coil wire disc comprises an inner disc surface (42) close to the launching track (11) and an outer disc surface (41) away from the launching track (11), and the two side edges of the launching track (11) are respectively adjacent to the inner disc surfaces (42) of the excitation coils (4) on both sides.

3. The electromagnetic launching device of claim 2, wherein: The coil support (3) comprises support side plates (32) located on both sides and a support connecting plate (31) connected between the support side plates (32), the support side plates (32) are matched with the outer disc surfaces (41), the support side plates (32) are provided with insertion parts (33), and the insertion parts (33) are matched with the inner surfaces of the axial holes of the excitation coils (4).

4. The electromagnetic launching device of claim 3, wherein: The cross-sectional area of the insertion part (33) accounts for at least 20% of the area of the excitation coil (4), and the support connecting plate (31) is located below or behind the launching track (11).

5. The electromagnetic launching device of claim 3, wherein: The end surface of the insertion part (33) protrudes from or is flush with the inner disc surface (42), and the two side edges of the launching track (11) are located below the position of the insertion part (33).

6. The electromagnetic launch device of claim 5, wherein: The end surface of the insertion part (33) protruding from the inner disc surface (42) is provided as an arc surface.

7. The electromagnetic launching device according to any one of claims 1-6, characterized by: The electromagnetic launching device further comprises an induction assembly, and the induction assembly is adjacent to the launching track (11).

8. The electromagnetic launching device of claim 7, wherein: The electromagnetic launching device further comprises a current control assembly, and the current control assembly controls the on-off of the current in the coil set (2) according to the detection feedback of the induction assembly.

9. The electromagnetic launching device of claim 2, wherein: The surface of the launching track (11) is provided as an arc surface, the front end of the track support (1) comprises a launching pipe (12), the launching pipe (12) communicates with the launching track (11), and the inner surface of the launching pipe (12) is matched with the outer surface of the launching object.

10. The electromagnetic launching device of claim 2, wherein: The left and right sides of the track support (1) are respectively movably connected with the positions below the axial holes of the excitation coil (4), so that the installation position of the excitation coil (4) is adjustable; or the track support (1) and the inner disc surfaces (42) of the coil wire discs on the two sides are integrated.

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