CN115096129A - Electromagnetic blocking device based on Lenz law - Google Patents
Electromagnetic blocking device based on Lenz law Download PDFInfo
- Publication number
- CN115096129A CN115096129A CN202210821092.4A CN202210821092A CN115096129A CN 115096129 A CN115096129 A CN 115096129A CN 202210821092 A CN202210821092 A CN 202210821092A CN 115096129 A CN115096129 A CN 115096129A
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- Prior art keywords
- speed reducer
- electromagnetic
- simulation
- guide rail
- lenz
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- 230000000903 blocking effect Effects 0.000 title description 8
- 238000004088 simulation Methods 0.000 claims abstract description 47
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 41
- 238000013016 damping Methods 0.000 claims abstract description 15
- 239000004576 sand Substances 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 7
- 241001426407 Umbrina coroides Species 0.000 claims description 6
- 230000005426 magnetic field effect Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000005674 electromagnetic induction Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 description 23
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- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
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- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000005288 electromagnetic effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A31/00—Testing arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/02—Arresting gear; Liquid barriers
Abstract
The invention discloses an electromagnetic arresting device based on Lenz's law, which comprises a simulation bomb (1), a sliding table (2), a sliding table guide rail (9), a support (8), a simulation bomb damping ring (3) and an electromagnetic speed reducer, wherein the sliding table guide rail (9) and the electromagnetic speed reducer are sequentially arranged on the support (8), the sliding table (2) is arranged at the bottom of the simulation bomb (1), the sliding table (2) is matched with the sliding table guide rail (9) to enable the simulation bomb (1) to slide along the sliding table guide rail (9), the simulation bomb damping ring (3) is arranged on the simulation bomb (1), the simulation bomb (1) can slide along the sliding table guide rail (9) and enter the electromagnetic speed reducer, and the simulation bomb damping ring (3) and the electromagnetic speed reducer are subjected to electromagnetic induction to enable the simulation bomb (1) to decelerate. The invention has no driving coil, and brakes by the resistance of the projectile in the fixed magnetic field generated by the permanent magnet, thereby saving the electric quantity and eliminating the high-voltage risk in the operation process.
Description
Technical Field
The invention belongs to the technical field of electromagnetic blocking, and particularly relates to an electromagnetic blocking device based on Lenz's law.
Background
The rodless cylinder ejection is used as a pneumatic element and is widely applied to the fields of mechanical transmission, mechanical arms, opening and closing of vehicle doors and the like. The device has the advantages of compact structure and longer force action stroke, and has wide application prospect in the field of military affairs. At present, a plurality of test sites can carry out rodless cylinder ejection tests in China, but better equipment is not used for braking the ejected simulation bomb. In most cases, the friction force is increased by dragging the rubber tires to brake after the simulation ejection, and the braking mode has the defects of too long braking stroke, large number of required rubber tires and the like, and is not beneficial to the miniaturization of the ejection test.
At present, an interception mode based on an electromagnetic effect is mostly related to an aircraft carrier. In order to overcome the defects of long sliding distance, low efficiency and the like of a fixed-wing aircraft during landing in the prior art, the shipboard aircraft can be placed in a magnetic field and electrified in a specific direction, so that ampere force is generated to decelerate the shipboard aircraft. Or after the shipboard aircraft is hung in the arresting cable, the electromagnetic arresting device is adopted. The electromagnetic resistance is generated by changing the current magnitude and direction, so that the speed of the carrier-based aircraft is reduced to zero in a short time. However, the large blocking device blocks the magnetic field based on the effect of the time-varying magnetic field generated by the alternating current, and has certain insecurity and complex circuit.
Disclosure of Invention
The invention aims to provide an electromagnetic blocking device based on Lenz law, which is free of a driving coil and input current and mainly solves the problem that the simulated bullet braking distance is too long in the shooting of a rodless cylinder.
The technical solution for realizing the above purpose is as follows:
an electromagnetic arresting device based on Lenz's law, which comprises a simulated bomb, a sliding table guide rail, a bracket, a simulated bomb damping ring and an electromagnetic speed reducer,
slip table guide rail and electromagnetism decelerator set gradually in on the support, the slip table sets up in the bottom of simulation bullet, slip table and slip table guide rail cooperation make the simulation bullet can follow the slip table guide rail and slide, the damping ring of simulation bullet sets up on the simulation bullet, the simulation bullet can slide along the slip table guide rail and enter in the electromagnetism decelerator, the damping ring of simulation bullet can produce induced-current with the magnetic field effect of the permanent magnet production among the electromagnetism decelerator, and induced-current produces the power opposite with the direction of motion under the magnetic field effect to make the simulation bullet slow down.
Further, the electromagnetic speed reducing device comprises a speed reducing channel and a plurality of permanent magnets, and the permanent magnets are sequentially arranged in the speed reducing channel.
Furthermore, the speed reduction channel comprises an upper shell of the speed reduction channel, a base of the speed reduction channel and an inner slide rail of the speed reduction channel, the inner slide rail of the speed reduction channel is positioned in the speed reduction channel, the inlet end of the inner slide rail of the speed reduction channel is in interference fit with the upper shell of the speed reduction channel and the inlet end of the base of the speed reduction channel, and the outer side of the inner slide rail of the speed reduction channel is in transition fit with the inner ring of the permanent magnet.
Furthermore, electromagnetism decelerator still includes sand section of thick bamboo reduction gear and steel shield reduction gear, sand section of thick bamboo reduction gear and steel shield reduction gear set gradually behind the speed reduction passageway, the slide rail end is arranged in sand section of thick bamboo reduction gear in the speed reduction passageway.
Furthermore, gravel is arranged in the sand cylinder speed reducer.
Furthermore, the support includes a plurality ofly, and a plurality of supports are connected through the bayonet joint front and back.
Further, the material of the permanent magnet is NdFe 35.
Compared with the prior art, the invention has the advantages that:
(1) the device has no driving coil, and only depends on the resistance of the projectile in the fixed magnetic field generated by the permanent magnet to brake, so that huge electric quantity consumed in the coil blocking process can be saved, high-voltage risks existing in the operation process can be eliminated, and the loss of equipment can be reduced.
(2) Compared with a transmission braking mode, the braking distance is shorter, the braking time is shorter, and the occupied area of the equipment is small.
(3) The permanent magnet has high permanent strength and can be reused for a long time.
Description of the drawings:
fig. 1 is a schematic structural diagram of an electromagnetic arresting device based on lenz's law according to the present invention.
Fig. 2 is a three-dimensional axial view of the structure of the dummy round of the present invention.
Fig. 3 is a three-dimensional axial view of the slide table of the present invention.
Fig. 4 is a front view of the slide table of the present invention.
Fig. 5 is a side view of the ramp of the present invention.
Fig. 6 is a top view of the slide table of the present invention.
Fig. 7 is a plan view of the slide guide of the present invention.
Fig. 8 is a three-dimensional axial view of the slide table guide rail of the present invention.
Fig. 9 is a three-dimensional axial view of the stent structure of the present invention.
Figure 10 is a three-dimensional axial view of the speed-reducing tunnel of the present invention.
Figure 11 is a cross-sectional view of the speed reduction tunnel of the present invention.
Figure 12 is a side view of the speed reduction tunnel of the present invention.
FIG. 13 is a three dimensional axial view of a sand drum reducer and a steel shield reducer of the present invention.
FIG. 14 is a cross-sectional view of a sand drum reducer and a steel shield reducer of the present invention.
FIG. 15 is a front view of a sand drum reducer and a steel shield reducer of the present invention.
FIG. 16 is a top view of a sand drum reducer and a steel shield reducer of the present invention.
The specific implementation mode is as follows:
as shown in fig. 1-16, an electromagnetic arresting device based on lenz's law comprises a simulated bomb 1, a sliding table 2, a sliding table guide rail 9, a bracket 8, a simulated bomb damping ring 3 and an electromagnetic speed reducer,
slip table guide rail 9 and electromagnetism decelerator set gradually in on the support 8, slip table 2 sets up in the bottom of simulation bullet 1, slip table 2 makes simulation bullet 1 can slide along slip table guide rail 9 with the cooperation of slip table guide rail 9, simulation bullet damping ring 3 sets up in the simulation bullet 1 front end cover outside the simulation bullet, simulation bullet 1 can slide along slip table guide rail 9 and enter the electromagnetism decelerator in, simulation bullet damping ring 3 takes place electromagnetic induction with the electromagnetism decelerator and makes simulation bullet 1 slow down.
Further, electromagnetism decelerator includes speed reduction passageway 5 and a plurality of permanent magnet 4, a plurality of permanent magnet 4 set gradually in speed reduction passageway 5, and ring 3 and the effect of permanent magnet magnetic field drive simulation bullet 1 speed reduction.
Furthermore, the deceleration channel 5 comprises an upper deceleration channel shell 5-1, a deceleration channel base 5-2 and an inner deceleration channel slide rail 5-3, the inner deceleration channel slide rail 5-3 is positioned in the deceleration channel 5, the inlet end of the inner deceleration channel slide rail 5-3 is in interference fit with the upper deceleration channel shell 5-1 and the inlet end of the deceleration channel base 5-2, and the outer side of the inner deceleration channel slide rail 5-3 is in transition fit with the inner ring of the permanent magnet 4.
Furthermore, the electromagnetic speed reducing device further comprises a sand cylinder speed reducer 6 and a steel shield speed reducer 7, wherein the sand cylinder speed reducer 6 and the steel shield speed reducer 7 are sequentially arranged behind the speed reducing channel 5.
Furthermore, gravel is arranged in the sand cylinder speed reducer 6, so that the simulation bomb is prevented from being not completely decelerated, the steel shield speed reducer 7 prevents the simulation bomb 1 from jumping out of the gravel, and the sand cylinder speed reducer 6 and the steel shield speed reducer 7 play a final buffering and safety role.
Further, the bracket 8 comprises a plurality of brackets 8, preferably seven brackets 8, which are connected back and forth through connectors.
The sliding table guide rail 9, the speed reduction channel 5, the sand cylinder speed reducer 6 and the steel shield speed reducer 7 are fixed through drilled screw holes and a support 8. The two sides of the bottom of the sliding table 2 are welded with safe sliding blocks made of steel materials and are in clearance fit with notches in the inner side of the sliding table guide rail 9, and the high-speed sliding block below the sliding table 2 is in clearance fit with the bottom of the sliding table guide rail 9. The simulation bomb 1 is arranged on the sliding table 2. The inlet end of an inner slide rail 5-3 in the speed reducing channel 5 is in interference fit with the upper shell 5-1 of the speed reducing channel and the inlet end of a base 5-2 of the speed reducing channel, the outer side of the inner slide rail 5-3 is in transition fit with an inner ring of a permanent magnet 4, and the tail end of the inner slide rail 5-3 is arranged in a sand cylinder speed reducer 6 so as to ensure that the simulated bomb 1 can enter the sand cylinder speed reducer 6. The sand cylinder speed reducer 6 is internally provided with sand to prevent the simulation bomb 1 from not being completely decelerated; the steel shield speed reducer 7 prevents the simulated bomb from jumping out of the gravel, and the sand drum speed reducer 6 and the steel shield speed reducer 7 play a final buffering and safety role. 12 permanent magnets 4 are arranged in a groove of a base of the speed reducing channel 5, and an upper cover and the base of the speed reducing channel 5 are fixed by 12 bolts.
The electromagnetic blocking device based on Lenz's law provided by the invention has the following working process:
the simulation bomb 1 is arranged on the sliding table 2, both of the simulation bomb 1 and the sliding table 2 run along the sliding table guide rail 9 at a certain speed, the sliding table 2 moves to the inlet of the speed reducing channel 5 to stop, the simulation bomb 1 is sent into the speed reducing channel 5, the simulation bomb 1 continues to advance along the sliding rail 5-3 in the channel and starts to reduce the speed, and the matching of the simulation bomb 1 and the sliding rail 5-3 in the channel is clearance matching; after the simulated bomb 1 enters the channel, the simulated bomb damping ring 3 makes cutting magnetic induction line motion under the fixed nonuniform magnetic field generated by the permanent magnet 4, induced current is generated inside the simulated bomb damping ring, and the fixed nonuniform magnetic field generated by the permanent magnet 4 is coupled with the induced current to generate force opposite to the motion direction according to the Lenz's law, so that the damping ring 3 drives the simulated bomb 1 to decelerate. If the speed is completely reduced, the simulated bomb 1 enters the sand cylinder speed reducer 6 and the steel shield speed reducer 7 and finally stops.
Because the invention has no input current and time-varying magnetic field, only depends on the interaction between the fixed magnetic field generated by the permanent magnet and the circular ring, and the simulation elastic circular ring is made of a material with small magnetic conductivity according to the principle of minimum magnetic resistance; meanwhile, in order to increase the induced current, a material with high conductivity should be used. The permanent magnet material is made of NdFe35 material which has high coercive force, large remanence, good processing performance and moderate cost. And carrying out simulation optimization on the model through Maxwell to obtain the model of the optimal speed reducer model, wherein permanent magnets are axially magnetized and are oppositely arranged.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. An electromagnetic arresting device based on Lenz's law is characterized in that,
comprises a simulation bomb (1), a sliding table (2), a sliding table guide rail (9), a bracket (8), a simulation bomb damping ring (3) and an electromagnetic speed reducer,
slip table guide rail (9) and electromagnetism decelerator set gradually in on support (8), slip table (2) set up in the bottom of simulation bullet (1), slip table (2) and slip table guide rail (9) cooperation make simulation bullet (1) can slide along slip table guide rail (9), simulation bullet damping ring (3) set up on simulation bullet (1), simulation bullet (1) can be followed slip table guide rail (9) and slided and enter the electromagnetism decelerator in, simulation bullet damping ring (3) can with the magnetic field effect that permanent magnet (4) among the electromagnetism decelerator produced, produce induced-current, induced-current produces the power opposite with the direction of motion under the magnetic field effect to make simulation bullet (1) slow down.
2. Electromagnetic arresting device according to lenz's law according to claim 1, characterized in that it comprises a deceleration channel (5) and a plurality of permanent magnets (4), said plurality of permanent magnets (4) being arranged in sequence inside the deceleration channel (5).
3. The electromagnetic arresting device based on the lenz law as claimed in claim 2, wherein the deceleration channel (5) comprises an upper deceleration channel housing (5-1), a deceleration channel base (5-2) and an inner deceleration channel sliding rail (5-3), the inner deceleration channel sliding rail (5-3) is located in the deceleration channel (5), an inlet end of the inner deceleration channel sliding rail (5-3) is in interference fit with the upper deceleration channel housing (5-1) and the inlet end of the deceleration channel base (5-2), and the outer side of the inner deceleration channel sliding rail (5-3) is in transition fit with the inner permanent magnet ring (4).
4. The electromagnetic arresting device based on the lenz's law according to claim 3, wherein the electromagnetic speed reducer further comprises a sand cylinder speed reducer (6) and a steel shield speed reducer (7), the sand cylinder speed reducer (6) and the steel shield speed reducer (7) are sequentially arranged behind the speed reducing channel (5), and the tail end of the sliding rail (5-3) in the speed reducing channel is arranged in the sand cylinder speed reducer (6).
5. An electromagnetic arresting device according to the lenz's law, characterized in that the sand drum retarder (6) is built-in with sand.
6. The Lenz's law-based electromagnetic arresting device according to any one of claims 2-5, wherein the brackets (8) comprise a plurality of brackets, and the plurality of brackets (8) are connected back and forth through a plug.
7. The lenz's law-based electromagnetic arresting device according to claim 6, wherein the material of the permanent magnet (4) is NdFe 35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210821092.4A CN115096129A (en) | 2022-07-13 | 2022-07-13 | Electromagnetic blocking device based on Lenz law |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210821092.4A CN115096129A (en) | 2022-07-13 | 2022-07-13 | Electromagnetic blocking device based on Lenz law |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115096129A true CN115096129A (en) | 2022-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210821092.4A Pending CN115096129A (en) | 2022-07-13 | 2022-07-13 | Electromagnetic blocking device based on Lenz law |
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| CN (1) | CN115096129A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB641476A (en) * | 1943-01-28 | 1950-08-16 | Westinghouse Electric Int Co | Improvements in or relating to electric launching systems or catapults for airborne craft and control means therefor |
| CH303872A (en) * | 1951-11-13 | 1954-12-15 | Bauer Robert | A suspension device on aircraft that carries a body at least partially made of ferromagnetic material and has at least one permanent magnet. |
| US5053662A (en) * | 1990-04-18 | 1991-10-01 | General Electric Company | Electromagnetic damping of a shaft |
| CN1580743A (en) * | 2003-07-30 | 2005-02-16 | 上海爱普特仪器有限公司 | Electromagnetic damp moving plat form and dual-laser conjugated focusing gene chip scanistor |
| GB0502987D0 (en) * | 2005-02-14 | 2005-03-16 | Alstom | Apparatus for accelerating and decelerating a trolley |
| US20060261765A1 (en) * | 2003-04-10 | 2006-11-23 | Prasanna Gorur N S | Motion control using electromagnetic forces |
| CN201974991U (en) * | 2011-03-18 | 2011-09-14 | 桂培炎 | Electromagnetic deceleration device |
| CN102198864A (en) * | 2011-02-22 | 2011-09-28 | 和近建 | Power rotation runway and take-off and landing operation method thereof |
| CN102328753A (en) * | 2010-07-14 | 2012-01-25 | 汤天武 | Ejector |
-
2022
- 2022-07-13 CN CN202210821092.4A patent/CN115096129A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB641476A (en) * | 1943-01-28 | 1950-08-16 | Westinghouse Electric Int Co | Improvements in or relating to electric launching systems or catapults for airborne craft and control means therefor |
| CH303872A (en) * | 1951-11-13 | 1954-12-15 | Bauer Robert | A suspension device on aircraft that carries a body at least partially made of ferromagnetic material and has at least one permanent magnet. |
| US5053662A (en) * | 1990-04-18 | 1991-10-01 | General Electric Company | Electromagnetic damping of a shaft |
| US20060261765A1 (en) * | 2003-04-10 | 2006-11-23 | Prasanna Gorur N S | Motion control using electromagnetic forces |
| CN1580743A (en) * | 2003-07-30 | 2005-02-16 | 上海爱普特仪器有限公司 | Electromagnetic damp moving plat form and dual-laser conjugated focusing gene chip scanistor |
| GB0502987D0 (en) * | 2005-02-14 | 2005-03-16 | Alstom | Apparatus for accelerating and decelerating a trolley |
| GB2423063A (en) * | 2005-02-14 | 2006-08-16 | Alstom | Apparatus for accelerating and decelerating a trolley, or similar moving assembly |
| CN102328753A (en) * | 2010-07-14 | 2012-01-25 | 汤天武 | Ejector |
| CN102198864A (en) * | 2011-02-22 | 2011-09-28 | 和近建 | Power rotation runway and take-off and landing operation method thereof |
| CN201974991U (en) * | 2011-03-18 | 2011-09-14 | 桂培炎 | Electromagnetic deceleration device |
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Application publication date: 20220923 |