A rotating electromagnetic centrifugal launcher

By combining electromagnetic drive and centrifugal force with a rotating electromagnetic centrifugal launcher, the problem of short acceleration time in existing electromagnetic launchers is solved, achieving efficient adjustment of launch speed and angle, and improving the durability and ease of maintenance of the equipment.

CN224499260UActive Publication Date: 2026-07-14SCI & EDUCATION CENT OF THE FIRST EXPLORATION BUREAU OF CHINA COAL GEOLOGY ADMINISTRATION

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SCI & EDUCATION CENT OF THE FIRST EXPLORATION BUREAU OF CHINA COAL GEOLOGY ADMINISTRATION
Filing Date
2025-06-06
Publication Date
2026-07-14

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Abstract

The utility model provides a kind of rotary electromagnetic centrifugal launcher, linear+rotary track design: electromagnetic section is straight track, centrifugal section is arc or spiral track interface, extend acceleration time and acceleration path, launch speed is high, angle adjustment is flexible, maintenance is simple, it includes base, the bottom of the base is provided with four foots, the top of the base is provided with launch angle adjusting mechanism, launch angle adjusting mechanism is installed on the support disc, the top of the support disc is fixedly installed with fixed seat, centrifugal launch mechanism is installed on the fixed seat, the launch angle adjusting mechanism includes servo motor and rotating shaft, the top of the base is provided with recess, the servo motor is installed on the bottom inner wall of recess, the rotating shaft is rotatably installed in recess by bearing, the top of the recess is fixedly installed with the bottom of support disc, the output shaft of the servo motor is installed with second gear.
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Description

Technical Field

[0001] This utility model relates to the field of electromagnetic centrifugal transmitter technology, and in particular to a rotating electromagnetic centrifugal transmitter. Background Technology

[0002] An electromagnetic launcher is a device that uses electromagnetic force to lift and propel objects, or to accelerate them to ultra-high speeds (>3km / s). Because it was initially intended only for use as a weapon, it is also called an electromagnetic gun.

[0003] In the existing technology, electromagnetic transmitters have a linear structure, resulting in a short acceleration time and an acceleration path that cannot meet the acceleration requirements. Utility Model Content

[0004] To address the shortcomings of existing technologies, the present invention provides a rotating electromagnetic centrifugal transmitter. The existing electromagnetic transmitters have a linear structure, resulting in short acceleration times and insufficient acceleration paths to meet acceleration requirements.

[0005] To achieve the above objectives, this utility model provides:

[0006] A rotating electromagnetic centrifugal transmitter includes a base with four feet at the bottom and a launch angle adjustment mechanism at the top. A support plate is mounted on the launch angle adjustment mechanism, and a fixed seat is fixedly mounted on the top of the support plate. The centrifugal launch mechanism is mounted on the fixed seat.

[0007] Preferably, the launch angle adjustment mechanism includes a servo motor and a rotating shaft. The top of the base has a groove, the servo motor is installed on the bottom inner wall of the groove, the rotating shaft is rotatably installed in the groove through a bearing, the top of the groove is fixedly installed to the bottom of the support plate, a second gear is installed on the output shaft of the servo motor, a first gear is sleeved on the outer side of the rotating shaft, and the second gear meshes with the first gear.

[0008] Preferably, a plurality of support blocks are fixedly installed at the bottom of the support plate, and each of the support blocks has a ball embedded in its bottom, and the ball is slidably connected to the top of the base.

[0009] Preferably, the centrifugal launching mechanism includes a centrifugal launching tube, a first winding coil is wound around the outside of the centrifugal launching tube, a launching tube protective cover is fixedly wrapped around the outside of the centrifugal launching tube, and multiple arc-shaped slots are provided on the top of the fixing base. The launching tube protective cover is fixedly connected to the fixing base through the multiple arc-shaped slots.

[0010] Preferably, one end of the centrifugal transmitter tube is connected to an inlet tube, and the other end of the centrifugal transmitter tube is connected to an outlet tube. A second winding coil is wound around the outside of both the inlet tube and the outlet tube. An inlet protective cover is fixedly wrapped around the outside of the inlet tube, and an outlet protective cover is fixedly wrapped around the outside of the outlet tube.

[0011] In use, both the first and second winding coils are connected to the power supply and controller. The two winding coils are controlled in stages. An object enters through the inlet tube. The first winding coil wound on the outside of the inlet tube is energized, generating a magnetic force that propels the object forward into the centrifugal launch tube. The first winding coil wound on the outside of the centrifugal launch tube drives the object, causing it to rotate centrifugally along the tube. The object enters the outlet tube, where the second winding coil is energized, generating a magnetic force that launches the object. When the launch angle needs adjustment, the servo motor drives the second gear to rotate. The second gear meshes with the first gear, driving the rotating shaft to rotate. The rotating shaft drives the support plate to rotate horizontally. The support plate, via a fixed base, drives the centrifugal launch mechanism to achieve horizontal angle adjustment, thus allowing for the adjustment of the launch angle.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] 1. This design combines electromagnetic drive with centrifugal force, employing a three-stage acceleration process (inlet coil pushing in, centrifugal coil rotation acceleration, and outlet coil launch). Traditional electromagnetic launchers typically rely on linear acceleration (such as coilguns), while this design increases radial acceleration through centrifugal motion, thereby enhancing the initial launch velocity.

[0014] 2. A servo motor, gear set (first gear and second gear), and rotating shaft are used to achieve continuous 360° adjustment of the launch angle, and friction is reduced by support blocks and ball bearings. Traditional fixed-angle launchers require manual adjustment, while this solution achieves high-precision automated adjustment.

[0015] 3. The centrifugal launch mechanism is connected to the mounting base via an arc-shaped bayonet, facilitating quick disassembly / replacement; the protective cover (launch tube protective cover, etc.) integrates electromagnetic shielding and mechanical protection, enhancing durability;

[0016] 4. The first and second winding coils are independently controlled in stages to optimize the object's acceleration trajectory.

[0017] This utility model features a linear + rotary track design: the electromagnetic section is a straight track, and the centrifugal section is connected by an arc or spiral track, which extends the acceleration time and acceleration path, resulting in high launch speed, flexible angle adjustment, and easy maintenance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this design;

[0019] Figure 2 A three-dimensional structural diagram of the centrifugal transmitter tube, inlet tube, outlet tube, and first winding coil of this design;

[0020] Figure 3 This is a structural diagram of the base, launch angle adjustment mechanism, and support plate in this design.

[0021] In the diagram: 1. Base; 11. Foot; 12. Groove; 2. Launch angle adjustment mechanism; 21. Servo motor; 22. Rotating shaft; 23. First gear; 24. Second gear; 3. Support plate; 31. Support block; 32. Ball bearing; 4. Fixed seat; 41. Arc-shaped bayonet; 5. Centrifugal launch mechanism; 51. Centrifugal launch tube; 52. First winding coil; 53. Inlet tube; 531. Inlet protective cover; 54. Outlet tube; 541. Outlet protective cover; 55. Second winding coil; 56. Launch tube protective cover. Detailed Implementation

[0022] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0023] See Figure 1-3 As shown, a rotating electromagnetic centrifugal transmitter includes a base 1, with four feet 11 at the bottom of the base 1, a launch angle adjustment mechanism 2 at the top of the base 1, a support plate 3 mounted on the launch angle adjustment mechanism 2, a fixed seat 4 fixedly mounted on the top of the support plate 3, and a centrifugal launch mechanism 5 mounted on the fixed seat 4.

[0024] In this embodiment, the launch angle adjustment mechanism 2 includes a servo motor 21 and a rotating shaft 22. The top of the base 1 has a groove 12. The servo motor 21 is installed on the bottom inner wall of the groove 12. The rotating shaft 22 is rotatably installed in the groove 12 through a bearing. The top of the groove 12 is fixedly installed to the bottom of the support plate 3. A second gear 24 is installed on the output shaft of the servo motor 21. A first gear 23 is sleeved on the outside of the rotating shaft 22. The second gear 24 meshes with the first gear 23. When the servo motor 21 works, it drives the second gear 24 to rotate. The second gear 24 meshes with the first gear 23 and drives the rotating shaft 22 to rotate. The rotating shaft 22 drives the support plate 3 to rotate horizontally. The support plate 3 drives the centrifugal launch mechanism 5 through the fixed seat 4 to achieve horizontal angle adjustment.

[0025] In this embodiment, multiple support blocks 31 are fixedly installed on the bottom of the support disk 3, and each of the multiple support blocks 31 has a ball bearing 32 embedded in its bottom. The multiple balls bearing 32 are slidably connected to the top of the base 1. Through the cooperation of the multiple support blocks 31 and the balls bearing 32, the support disk 3 can be supported to ensure its stable rotation.

[0026] In this embodiment, the centrifugal launching mechanism 5 includes a centrifugal launching tube 51, a first winding coil 52 is wound around the outside of the centrifugal launching tube 51, and a launching tube protective cover 56 is fixedly wrapped around the outside of the centrifugal launching tube 51. The top of the fixed base 4 is provided with multiple arc-shaped slots 41, and the launching tube protective cover 56 is fixedly connected to the fixed base 4 through the multiple arc-shaped slots 41.

[0027] Specifically, the centrifugal launch tube is designed in a spiral shape (e.g., with a radius of curvature of 50-100 mm), and centrifugal force calculations are added to the operating mode (e.g., the centrifugal acceleration formula a = ω). 2 r, where ω is the angular velocity).

[0028] More specifically, the protective cover is made of non-magnetic material (such as aluminum alloy).

[0029] Modular interface: Arc-shaped bayonet 41 allows for ±15° fine adjustment, locking force 200–500N (to prevent loosening due to launch vibration).

[0030] Protection performance: The protective cover can withstand an impact of 50G (gravitational acceleration) and has an operating temperature range of -20℃ to +80℃; the electromagnetic shielding effectiveness is 20–40dB (reducing external interference).

[0031] In this embodiment, one end of the centrifugal emission tube 51 is connected to an inlet tube 53, and the other end of the centrifugal emission tube 51 is connected to an outlet tube 54. A second winding coil 55 is wound around the outside of both the inlet tube 53 and the outlet tube 54. An inlet protective cover 531 is fixedly wrapped around the outside of the inlet tube 53, and an outlet protective cover 541 is fixedly wrapped around the outside of the outlet tube 54.

[0032] Acceleration: The inlet / outlet coil (second winding coil 55) provides linear acceleration, typically 500–1000 m / s². 2 The centrifugal coil (first wound coil 52) provides rotational acceleration, with centrifugal acceleration reaching 2000–5000 m / s². 2 (Based on angular velocity ω = 100–200 rad / s and tube radius r = 0.05–0.1 m, formula a = ω 2 r).

[0033] Initial velocity gain: Composite acceleration can increase the initial velocity of an object to 50–100 m / s (compared to about 30–60 m / s for traditional pure electromagnetic transmitters), improving efficiency by 40–60%.

[0034] Control parameters: graded timing control accuracy ±1ms (ensuring seamless switching when the coil is energized), coil magnetic field strength 0.3–0.6T (Tesla).

[0035] Operating mode: During use, both first winding coils 52 and second winding coils 55 are connected to the power supply and controller. The two first winding coils 52 and second winding coils 55 are controlled in stages (the inlet and outlet second winding coils are controlled as a group, and the centrifugal coil is controlled independently). The power of the inlet / outlet coils is 500–1000W, and the power of the centrifugal coil is 1000–2000W (total power 2.5–4kW); the response time is <5ms. Efficiency improvement: Staged control reduces energy loss by 20-30% (compared to continuous power supply), and improves emission consistency (initial velocity fluctuation <2%). An object enters through the inlet pipe 53. The first winding coil 52, wound around the outside of the inlet pipe 53, is energized to generate a magnetic force, propelling the object forward into the centrifugal launch tube 51. The object is driven by the first winding coil 52 wound around the outside of the centrifugal launch tube 51, causing it to rotate and centrifuge along the centrifugal launch tube 51. The object enters the outlet pipe 54, where the second winding coil 55 is energized to generate a magnetic force, propelling the object into the launch tube. When the launch angle needs to be adjusted, the servo motor 21 drives the second gear 24 to rotate. The second gear 24 meshes with the first gear 23 and drives the rotating shaft 22 to rotate. The rotating shaft 22 drives the support plate 3 to rotate horizontally. The support plate 3, through the fixed seat 4, drives the centrifugal launch mechanism 5 to achieve horizontal angle adjustment, thus adjusting the launch angle.

[0036] Common knowledge: The principle of coil-type electromagnetic transmitters

[0037] Several driving coils are fixed and fed with current i1 respectively, while the transmitter coil carries current i2. Let i1 and i2 be in opposite directions, causing the two types of coils to repel each other. Let the self-inductance of each driving coil be L1, the self-inductance of the transmitter coil be L2, and the mutual inductance between them be M. Then the magnetic energy of a driving coil and a transmitter coil is:

[0038]

[0039] The force exerted by a driving coil on the transmitter is:

[0040]

[0041] This utility model is not limited to the above-described preferred embodiment. Anyone can derive other products in various forms under the guidance of this utility model. However, regardless of any changes made in its shape or structure, any technical solution that is the same as or similar to this utility model is within its protection scope.

Claims

1. A rotating electromagnetic centrifugal transmitter, comprising a base (1), wherein the bottom of the base (1) is provided with four feet (11), characterized in that: The base (1) is provided with a launch angle adjustment mechanism (2) at the top, a support plate (3) is installed on the launch angle adjustment mechanism (2), a fixed seat (4) is fixedly installed on the top of the support plate (3), and a centrifugal launch mechanism (5) is installed on the fixed seat (4).

2. The rotating electromagnetic centrifugal transmitter as described in claim 1, characterized in that: The launch angle adjustment mechanism (2) includes a servo motor (21) and a rotating shaft (22). The top of the base (1) has a groove (12). The servo motor (21) is installed on the bottom inner wall of the groove (12). The rotating shaft (22) is rotatably installed in the groove (12) through a bearing. The top of the groove (12) is fixedly installed with the bottom of the support plate (3). A second gear (24) is installed on the output shaft of the servo motor (21). A first gear (23) is sleeved on the outside of the rotating shaft (22). The second gear (24) meshes with the first gear (23).

3. A rotating electromagnetic centrifugal transmitter as described in claim 1, characterized in that: The bottom of the support plate (3) is fixedly equipped with multiple support blocks (31), and the bottom of each of the multiple support blocks (31) is embedded with a ball bearing (32). The multiple balls bearing (32) are slidably connected to the top of the base (1).

4. A rotating electromagnetic centrifugal transmitter as described in claim 1, characterized in that: The centrifugal launching mechanism (5) includes a centrifugal launching tube (51), a first winding coil (52) is wound around the outside of the centrifugal launching tube (51), a launching tube protective cover (56) is fixedly wrapped around the outside of the centrifugal launching tube (51), and multiple arc-shaped slots (41) are opened on the top of the fixed base (4). The launching tube protective cover (56) is fixedly connected to the fixed base (4) through multiple arc-shaped slots (41).

5. A rotating electromagnetic centrifugal transmitter as described in claim 4, characterized in that: One end of the centrifugal emitting tube (51) is connected to an inlet tube (53), and the other end of the centrifugal emitting tube (51) is connected to an outlet tube (54). A second winding coil (55) is wound around the outside of both the inlet tube (53) and the outlet tube (54).

6. A rotating electromagnetic centrifugal transmitter as described in claim 5, characterized in that: The inlet pipe (53) is fixedly wrapped with an inlet protective cover (531), and the outlet pipe (54) is fixedly wrapped with an outlet protective cover (541).