JP3682077B2 - Electromagnetic buoyancy adjustment device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an electromagnetic buoyancy adjusting device used for manned or anhydrous submersibles.
[0002]
[Prior art]
2 (a) to 2 (d) are conceptual diagrams of a conventional submersible buoyancy adjustment device. In FIG. 2 (a), the amount of buoyancy is adjusted by putting water into and out of the tank 11 using the pump 12, and can be adjusted any number of times from positive to negative to positive levitation. FIG. 2 (b) uses the rotary back plate 21 to drop the ballast 22, and only negative → positive adjustment. FIG. 2 (c) shows a case where the ballast 32 is dropped by the piston 31, and only negative → positive adjustment is performed. Further, in FIG. 2 (d), a coil 42 is arranged in a lower cylindrical portion of a hopper 41 containing a shot ballast 43 such as a steel ball having a diameter of about 1 mm, and the shot ballast 43 is adjusted by adjusting the electromagnetic force of the coil 42. It is a drop, only negative → positive adjustment.
[0003]
[Problems to be solved by the invention]
All of the above-described conventional buoyancy adjustment devices use a battery as a power source. However, in the devices shown in FIGS. 2A to 2C, when the energy of the battery is exhausted, a control circuit, a pump, a motor, etc. In the case of failure, the buoyancy adjustment device does not operate, the normal buoyancy cannot be obtained, and the entire system is lost. The apparatus shown in FIG. 2 (d) can drop a shot ballast and obtain a normal flying height when energy is consumed, but requires a considerable amount of electric power to hold the ballast.
[0004]
In addition to the buoyancy adjustment device as described above, there is a ballast attached to the lower surface of the submersible, and this ballast is separated to obtain the normal buoyancy, but these adjust the buoyancy like the buoyancy adjustment device described above. There is a problem that it is not possible.
[0005]
[Means for Solving the Problems]
The present invention provides an electromagnetic buoyancy adjustment device that eliminates the above-described problems and reduces power consumption. The feature of the present invention is that it is vertically cylindrical at the bottom of a hopper that houses a shot ballast. A holder is provided, and an even number of electromagnetic coils are arranged at equal angles in the circumferential direction in such a direction that the direction of magnetic flux is perpendicular to the outer peripheral surface of the holder on the outer periphery of the holder, and the direction of magnetic flux in adjacent electromagnetic coils is It is in the opposite direction. If necessary, a magnetic material is placed in the holder.
[0006]
[Action]
In the electromagnetic buoyancy adjustment device of the present invention described above, by arranging the electromagnetic coil as described above, the power required to hold the ballast can be reduced, and a battery that requires power saving is provided. This is effective for adjusting the buoyancy of the submarine used as a power source. At this time, by disposing the magnetic body in the holder, the gap is reduced, and even a small magnetic force is required, so that the current can be reduced and further power saving can be achieved.
Further, by controlling the current of the electromagnetic coil, it is possible to adjust the flow rate of the shot ballast drop.
[0007]
【Example】
FIG. 1 is an explanatory view of an embodiment of a buoyancy adjustment device of the present invention, FIG. 1 (a) is a configuration diagram showing a longitudinal section, and FIG. 1 (b) is an XX sectional view of FIG. 1 (a). is there.
As shown in the drawing, a cylindrical holder 3 is provided in a vertical direction at a lower opening of a hopper 1 that houses a shot ballast 2. On the outer periphery of the holder 3, an even number of electromagnetic coils 4 are arranged in a radial direction and at equal intervals in the circumferential direction, and the directions of magnetic fluxes in adjacent electromagnetic coils 4 are opposite as indicated by arrows. It is supposed to be. These electromagnetic coils 4 are housed in a pressure equalizing container 6 and are immersed in oil 7 filled in the container 6. A magnetic body 5 is disposed in the holder 3. In the drawing, 8 is a pressure equalizing resin hose, and 9 is a control circuit for controlling excitation and demagnetization.
[0008]
In such a buoyancy adjustment device of the present invention, the electric power necessary to hold the same amount of ballast is about 100 W in the conventional electromagnetic device shown in FIG. With this device, a significant power saving of about 5W was possible.
[0009]
In addition, since the main part of the device is an electromagnetic coil (iron core and winding), even when used in the sea where high pressure is applied, it is possible to equalize the surroundings by oil immersion as shown in the figure. It is possible to easily cope with this, and since the pressure vessel is unnecessary, the weight of the apparatus can be reduced.
[0010]
【The invention's effect】
As described above, according to the electromagnetic buoyancy adjustment device of the present invention, it is possible to reduce power consumption, and it is effective when used as a buoyancy adjustment device for a diving machine using a battery as a power source.
In addition, if a dry battery is used for power saving, the ballast is naturally dropped due to the consumption of the dry battery even in the event of an unexpected accident of the apparatus, and the submersible or the like can be recovered in a short time.
[Brief description of the drawings]
FIG. 1 is an explanatory view of an embodiment of an electromagnetic buoyancy adjustment device of the present invention, FIG. 1 (a) is a configuration diagram showing a longitudinal section, and FIG. 1 (b) is an XX of FIG. It is sectional drawing.
2 (a) to 2 (d) are all conceptual diagrams of a conventional submersible buoyancy adjustment device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hopper 2 Shot ballast 3 Holder 4 Electromagnetic coil 5 Magnetic body 6 Pressure equalizing container 7 Oil 8 Pressure equalizing resin hose 9 Control circuit

Claims (2)

A cylindrical holder is provided in the vertical direction at the bottom of the hopper containing the shot ballast, and an even number of electromagnetic coils are arranged in the circumferential direction on the outer periphery of the holder so that the direction of magnetic flux is perpendicular to the outer peripheral surface of the holder. An electromagnetic buoyancy adjustment device, characterized by being arranged at an equal angle so that the directions of magnetic fluxes in adjacent electromagnetic coils are opposite to each other. 2. The electromagnetic buoyancy adjustment device according to claim 1, wherein a magnetic body is disposed in the holder.

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