JP2006141109A - Magnetic slewing gear - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To continue operation without public pollution by utilizing the energy that a permanent magnet has thereby improving the operation cost. <P>SOLUTION: A second magnet 19 is stored in a slot 18 made in a stator frame freely of going in and out in the diametrical direction of rotors 4a and 5a, and in a specified period when a first magnet 17 draws near during rotation of the rotors 4a and 5a, it is retreated into the slot 18, and it is recovered into its original position immediately after this retreat thereby repelling and energizing the first magnet 17 in the rotational direction of the rotors 4a and 5a. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a magnetic rotating device for taking out power or electric power by utilizing a repulsive force of a magnet.

For the generation of power, external energy such as hydraulic power, wind power, wave power, and nuclear power is used. In addition, a hydroelectric power generation facility, a thermal power generation facility, a wind power generation facility, a wave power generation facility, a nuclear power generation facility, and the like are prepared to generate electric power using the generated power. In these generators, a magnet attached to the rotor induces a voltage (power generation) in the field winding of the stator and supplies electric power to the outside by the rotation of the rotor. The magnitude of the induced voltage is determined by the magnetic flux density of the magnet, the number of turns of the field winding, the rotational speed of the rotor, etc. (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 2003-324922

  However, in order to generate power and electric power in this way, the configuration and system for operating hydroelectric power generation facilities, wind power generation facilities, wind power generation facilities, wave power generation facilities, nuclear power generation facilities, etc. are large and costly. become. In addition, fossil fuels are used in thermal power generation facilities, causing natural destruction, and nuclear power generation does not completely eliminate the danger of radioactive contamination.

  The present invention reduces the inconvenience in equipment cost and operation cost for operating such a conventional generator etc. by using the energy held by the magnet (permanent magnet), and continues safe operation without pollution. An object of the present invention is to provide a magnetic rotating device that can be used.

  In order to achieve the above object, a magnetic rotating device according to the present invention includes a stator frame in which a plurality of second magnets are arranged at equal intervals on the inner periphery, and a plurality of first magnets arranged at equal intervals on the outer periphery. And a rotor that is urged to rotate by utilizing the repulsive force of the second magnet and the first magnet in the stator frame, and the rotor is driven at the start, and after the start, the rotor is kept for a predetermined time. The second magnet is housed in a slot formed in the stator frame so as to be freely movable in and out of the radial direction of the rotor and rotated. During the rotation of the child, the first magnet is retracted in the slot for a predetermined period, and the first magnet is rebounded by returning to the original position within the predetermined period for the first magnet to move away.

  With this configuration, the rotor is fixed by changing the repulsive force between the first magnet on the rotor side and the second magnet on the stator frame side activated by a power device such as a motor at an appropriate timing. Rotation bias can be applied to the child frame. In addition, after starting up, the rotational force of the power unit is intermittently used or the weak rotational force is continuously used to assist the rotor to continue rotating, which is realized with a simple and low-cost configuration. enable.

  In the magnetic rotating device according to the present invention, the stator frame is divided into two so that the stator frame is separated from the center of the rotor in the horizontal direction at the start-up and returned to the original position for a predetermined period. .

  With this configuration, at the time of starting the rotor, the first magnet on the rotor side is less likely to receive a repulsive force from the second magnet on the stator frame side, thereby preventing the starting rotation of the rotor from being hindered. Can be avoided.

  The magnetic rotating device of the present invention is characterized in that a generator is connected to the rotor.

  With this configuration, it is possible to effectively generate a large amount of power energy from the generator with a small amount of power energy.

  According to the present invention, a large magnetic rotational force is continuously generated by intermittently supplying external power energy or supplementing a small amount of power energy. It can be used effectively as power.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram conceptually showing a magnetic rotating device according to an embodiment of the present invention. In FIG. 1, the magnetic force rotating device includes a power unit 1, a rotation transmission mechanism 2, a clutch 3, magnetic force rotating means 4 and 5, and a generator 6.

As the power unit 1, for example, an electric motor or a hydraulic motor driven by electric power is used, and it is preferable to use a type that can frequently control rotation torque, rotation speed, and start and stop.
The rotation transmission mechanism 2 includes bevel gears 2a and 2b attached to the output shaft 7 of the power unit 1, and a bevel gear 2c selectively meshed with the bevel gears 2a and 2b. By selectively engaging the bevel gear 2c with the bevel gears 2a and 2b, the rotation of the power unit 1 can be transmitted to a pedestal described later, and the pedestal can be moved horizontally in the left and right (front and rear in FIG. 1) direction. it can.

The clutch 3 has an intermittent function of transmitting and releasing the rotation of the output shaft 7 to which the bevel gear 2 a is attached to the input shaft 8 of the magnetic force rotating means 4 and 5.
The clutch 3 is controlled to be “disengaged” during a period in which, for example, the magnetic force rotating means 4 and 5 continue to rotate independently. As this clutch 3, an electromagnetic clutch or a manual clutch can be used.

The magnetic force rotating means 4 and 5 have the same configuration and include rotors 4a and 5a and stator frames 4b and 5b, respectively.
As shown in FIG. 2, each stator frame 4b, 5b is divided into two in the split stator frames 4b1, 4b2 and the split stator frames 5b1, 5b2 in the left-right direction (the front-rear direction in FIG. 1) about the rotation shaft 8. It is divided.

  Further, the divided stator frames 4b1 and 5b1 and the divided stator frames 4b2 and 5b2 are respectively placed on one pedestal 9a and 9b. These pedestals 9a and 9b are supported on the base and the floor so as to be horizontally movable. FIG. 3 is a plan view showing the horizontal movement mechanism 10 of these pedestals 9a and 9b, and the divided stators 4b1 and 4b2 in FIG. 2 are indicated by chain lines.

  The horizontal movement mechanism 10 is disposed between the bases 9a and 9b, and a total of four spring plates 11 and 12 are provided, one on each of the front end and the rear end of the surfaces of the bases 9a and 9b facing each other. Each end is fixed. The other end of the spring plate 11 at the front end extends to the front of the bases 9a and 9b, and the other end of the spring plate 12 at the rear end extends to the rear of the bases 9a and 9b.

  Thick plate-like screw plates 13 and 14 are attached to the front and rear extending ends. At this time, the spring plates 11 and 12 are substantially V-shaped when viewed from above with the screw plates 13 and 14 as the center. Screw holes (not shown) are provided in the central portions of the screw plates 13 and 14, respectively, and one long screw shaft 15 is screwed into these screw holes.

  The screw shaft 15 is a reverse screw near the middle of the screw plates 13 and 14. Accordingly, the spring plates 11 and 12 are opened and closed in opposite directions by the one-way rotation operation of the screw shaft 15, and the bases 9a and 9b are moved so as to be separated from each other in conjunction with this. Or move closer. FIG. 4 shows a state where the bases 9a and 9b are separated by a predetermined amount.

A clutch 16 is attached to one end of the screw shaft 15, and the rotation of the power unit 1 and the bevel gears 2 a and 2 b shown in FIG. 1 is transmitted to the screw shaft 15 via the clutch 16.
The clutch 16 connects the output shaft of the bevel gear 2c and the screw shaft 15 when the power unit 1 is started, and moves the bases 9a and 9b in a direction to separate them, so that the rotation of the rotors 4a and 4b after the start is set. When the speed is stabilized at the speed or higher, the bases 9a and 9b are moved in the approaching direction.

  Further, the rotors 4a and 5a of the magnetic force rotating means 4 and 5 have a plurality of, for example, four poles of first magnets (permanent magnets) 17 embedded in the outer periphery at equal intervals. As shown in FIG. 5, the outer ends of these magnets 17 exposed to the outside of the rotors 4a and 5a are magnetized to, for example, N poles.

On the other hand, on the inner peripheral side of the stators 4b and 5b of the magnetic force rotating means 4 and 5, for example, four slots 18 are formed in the direction toward the centers of the rotors 4a and 5a. In these slots 18, second magnets 19 whose outer end portions are exposed on the inner peripheral surfaces of the stator frames 4 b and 5 b are accommodated so as to be slidable in the above direction.
Further, an iron piece 20 as a magnetic material is integrally fixed to the inner ends of the second magnets 19. Furthermore, a coil-type spring 21 is disposed in the slot 17 so as to support the iron piece 20, and an electromagnet 22 is disposed on the inner end side of the spring 21.

A slip ring (metal ring) 23 as shown in FIG. 6 is attached to a part of the outer periphery of the input shaft 8. The slip ring 23 is divided into four in the circumferential direction by four slits 24 extending in the axial direction, and a slit position detection sensor 25 is arranged so as to counter this.
The slits 24 are arranged so as to correspond to the respective angular positions of the first magnet 17. The slit position detection sensor 25 is configured by any one of electrical means, magnetic means, and optical means.

  A controller 26 is connected to the slit position detection sensor 25, and functions to output a timing signal for supplying a drive current to each of the electromagnets 22 at a constant period based on the detection output of the slit position. . An excitation device 27 that supplies a drive current to each electromagnet 22 in a certain order based on the timing signal is connected to the control device 26.

  As shown in FIG. 1, a charging / discharging battery 28 and a breaker 29 are connected to the generator 6, and the generated voltage from the generator 6 driven by the rotation of the input shaft 8 is charged to the battery 28. Or is supplied to the outside through the breaker 29. This generated voltage can be regenerated and used as a power source for driving the power unit 1.

Next, the operation of this magnetic rotating device will be described.
First, the power unit 1 is driven using electric power, hydraulic pressure, wind power or the like as a power source. For convenience of explanation, the following description will be specifically made with a motor in which the power unit 1 is driven by electric power in mind.
When the power unit 1 is activated by receiving the supply of electric power, the screw shaft 15 shown in FIGS. 2 to 4 is moved in a fixed direction via the clutch 16 being connected via the output shaft 7 and the bevel gears 2a and 2b. Rotate. The rotation of the screw shaft 15 causes the two screw plates 13 and 14 meshed with the screw shaft 15 to move on the screw shaft 15 in a direction approaching each other.

As the screw plates 13 and 14 move, the spring plates 11 and 12 push the bases 9a and 9b to the left and right, respectively. For this reason, the bases 9a and 9b move on the base B such as a rail so as to be separated in the horizontal direction.
By this operation, the stator frames 4b and 5b are largely displaced from the positions where the rotors 4a and 5a are located, and the first magnets 17 on the rotors 4b and 5b are displaced from the first magnets 17 on the stator frames 4b and 5b. It can be avoided that the magnetic field of the second magnet 19 is greatly affected. Thus, after the pedestals 9a and 9b have moved by the set maximum amount, the bevel gear 2c is detached from the bevel gear 2a.

On the other hand, the rotation of the output shaft 7 is transmitted to the rotors 4a and 5a of the magnetic force rotating means 4 and 5 via the clutch 3 and the input shaft 8 in a connected state. For this reason, the rotors 4a and 5a enter an activated state and gradually increase the rotational speed.
When the rotational speed of the rotors 4a and 5a rises to a preset rotational speed range, the bevel gear 2c is connected to the bevel gear 2b side.

  For this reason, the bevel gear 2 c starts reverse rotation, and reverses the screw shaft 15 via the clutch 16. By the reverse rotation of the screw shaft 15, the two screw plates 13 move on the screw shaft 12 so as to be relatively separated from each other, and the two bases 9a and 9b approach each other. When the pedestals 9a and 9b are closest, the stator frames 4b and 5b reach positions where they cover the rotors 4a and 5a, respectively, as shown in FIG.

  Therefore, the clutch 16 is opened so that the rotation of the bevel gear 2c is not transmitted to the screw shaft 12, and then the bevel gear 2c is separated from the bevel gear 2b. In this state, the first magnet 17 on the outer periphery of the rotors 4a and 5a driven by the power unit 1 is periodically applied to the second magnet 19 on the inner periphery of the stator frames 4b and 5b as shown in FIG. They will face each other.

  Next, in the stable rotation state of the rotor by the power unit 1, the clutch 3 is operated to separate the input shaft 8 from the output shaft 7. Then, the rotors 4a and 5a continue to rotate using their own rotational inertia and the repulsive force of the first magnet 17 with respect to the second magnet 19. A method for urging the rotors 4a and 5a by the repulsion of the magnets 17 and 19 will be described a little with reference to FIG.

While the rotors 4a and 5a are rotating, the rotation position of the first magnet 17 is obtained by the slit position detection sensor 25 detecting the position of the slit 24 of the slip ring 23, and this is constantly monitored by the control device 26. .
Based on these detected slit positions, the control device 26 determines the timing at which the second magnet 19 is retracted into the slot 18 or exposed to the inner periphery of the stators 4b and 5b.

  In response to the timing signal from the control device 26, the excitation device 27 energizes the electromagnet 22. As a result, the iron piece 20 integrated with the magnet 19 is attracted, and the second magnet 19 is moved back in the slot 18 by a predetermined amount against the repulsive force of the spring 21.

The reverse timing is such that the first magnet 17 starts to face the second magnet 19 during rotation of the rotors 4a and 5a in the direction of the arrow A, and the center portion of the second magnet 19 in the circumferential direction is It is up to the vicinity of the past position.
The power supply to the electromagnet 22 is cut off at a position past the central portion. At this time, the tip of the second magnet 19 protrudes toward the inner peripheral side of the stator frames 4b and 5b so as to be closest to the first magnet 17 by the repulsive force of the spring 21 compressed by the retreat. .
For this reason, the first magnet 17 is positively sent in the rotation direction of the rotors 4a and 5a with respect to the second magnet 19, and further urges the rotors 4a and 5a to rotate.

That is, the second magnet 19 is used to bias the first magnet 17 in the rotation direction of the rotors 4a and 5a, and the period or angle region in which the rotation direction of the rotors 4a and 5a is suppressed magnetically. Then, the magnetic force of the second magnet 19 is moved back to a position where the movement of the first magnet 17 is not affected.
The rotors 4a and 5a are externally controlled by controlling the rotation angle of each one of the first magnets 17 and the retreat timing of each one of the second magnets 19 by the control device 26. The rotation can be continued without receiving power from the power unit 1.

  In the said embodiment, as shown in FIG. 5, the front end surface of the 2nd magnet 19 is made into the shape which rises gradually in the rotation direction side of the rotor 4a, 5a. As a result, the repulsive force against the first magnet 17 is weakened and the rotational inertia of the rotors 4a and 5a can be prevented from being lowered until the position where the first magnet 17 faces the second magnet 19. .

  On the other hand, the repulsive force of the first magnet 17 by the second magnet 19 gradually increases from the vicinity immediately after the first magnet 17 faces the second magnet 19. Thereby, the rotors 4a and 5a can be more effectively urged to rotate. In order to generate and use the repulsive force as described above, the facing surfaces of the magnets 17 and 19 are magnetized with the same polarity. In the above-described embodiment, the case where each is magnetized to the N pole has been described, but each may be magnetized to the S pole.

  Moreover, in the said embodiment, what showed the front-end | tip part of the 2nd magnet 19 gradually protruding in the circular arc shape to the rotation direction side of the rotor 4a, 5a was shown. However, the first magnet 19 on the side of the rotors 4a and 5a is protruded in an arc shape in the rotational direction side as described above so as to urge the rotor by the repulsive force of the magnet, Forming is optional.

Further, instead of the spring 21 and the electromagnet 22 housed in the slot 18 formed in the stator frames 4b and 5b, a magnet (not shown) for repelling the second magnet 19 may be housed. Accordingly, the second magnet 19 can be easily moved in the slot 18 without supplying power to the electromagnet 22 from the outside.
Further, the electric power obtained by the magnetic force rotating means 4 and 5 is charged in the storage battery 28 and can be taken out through the breaker 29 as needed.

  The magnetic rotating device of the present invention improves the inconvenience on facilities and operating costs for operating a conventional generator or the like by using the energy held by the permanent magnet, so that the operation can be continued without pollution. It is useful when applied to a magnetic rotating device or the like that is used to extract power or electric power by utilizing the repulsive force of a permanent magnet.

It is a block diagram which shows notionally the magnetic rotating apparatus by embodiment of this invention. It is a side view which shows the magnetic force rotation means in FIG. It is a top view of the principal part which shows the movement condition of the base in FIG. It is a front view of the principal part which shows the open state of the base in FIG. It is an expanded sectional view of the principal part explaining the repulsive rotation with respect to the stator frame of the rotor in FIG. It is explanatory drawing for demonstrating the repulsive rotation control method of the rotor in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Power unit 4, 5 Magnetic rotation means 4a, 5a Rotor 4b, 5b Stator frame 6 Generator 7 Output shaft (rotary shaft)
8 Input shaft (rotary shaft)
DESCRIPTION OF SYMBOLS 10 Horizontal movement mechanism 17 1st magnet 18 Slot 19 2nd magnet 21 Spring 22 Electromagnet

Claims (3)

A stator frame in which a plurality of second magnets are arranged at equal intervals on the inner periphery;
A plurality of first magnets arranged at equal intervals on the outer periphery, and a rotor that is urged to rotate using the repulsive force of the second magnet and the first magnet in the stator frame;
A power unit that drives the rotor at start-up, and drives the rotor at predetermined time intervals after start-up or with a smaller torque than at start-up;
With
The second magnet is housed in a slot formed in the stator frame so as to freely enter and exit in the radial direction of the rotor, and is retracted in the slot for a predetermined period when the first magnet approaches during rotation of the rotor. A magnetic rotating device, wherein a first magnet is repelled by returning to its original position within a predetermined period of time when one magnet moves away.   The magnetic rotating device according to claim 1, wherein the stator frame is divided into two parts so that the stator frame is separated from the center of the rotor in the horizontal direction at the start-up and returns to the original position after a predetermined period. The magnetic rotator according to claim 1, wherein a generator is connected to the rotor.

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