Torque generation device

Abstract

To provide a torque generation device capable of performing rotation assistance.SOLUTION: A torque generation device comprises: a stationary-side internal gear 3; a rotor 5 which is concentric to the internal gear; a drive gear 7 which is disposed at an eccentric position with respect to the rotor 5; an interlock gear 9 which is disposed at an eccentric position with respect to the rotor 5 and meshes with the internal gear 3; an intermediate gear 11 which meshes with the drive gear 7 and the interlock gear 9 and makes rotation directions of the drive gear 7 and the interlock gear 9 identical; a stationary-side permanent magnet 13; and a rotary-side permanent magnet 15. The stationary-side permanent magnet 13 is disposed while being tilted in such a manner that the radial inside thereof comes to a rear side with respect to a rotation direction of the rotor 5. The rotary-side permanent magnet 15 is disposed while being tilted in such a manner that the radial outside thereof comes to a rear side with respect to a rotation direction of the drive gear 7. A tip end of the rotary-side permanent manet 15 is set to enter a tip end of the same pole of the stationary-side permanent magnet 13 from a front side in the rotation direction, and a tip end of the rotary-side permanent magnet 15 is set to retract from a tip end of the same pole of the stationary side permanent magnet 13 with a higher repulsive force than that at the time of entrance.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a rotational force generating device that generates a rotational force.

Background Art

[0002] As a conventional rotational force generating device, there is a magnetic force rotator described in Patent Document 1. This magnetic force rotator enables rotation only by permanent magnets. This magnetic force rotator includes a fixed permanent magnet and an inner permanent magnet, and a rotor made of a magnetic material is disposed between the fixed permanent magnet and the inner permanent magnet, and rotation is output from the rotor.

[0003] However, even if a rotational output is obtained, the output that can be extracted is only slight.

[0004]

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The problem to be solved is that the output that can be extracted is only slight.

Means for Solving the Problems

[0007] The rotational force generating device of the present invention includes a fixed-side permanent magnet supported at regular intervals in the circumferential direction and a rotating-side permanent magnet supported at regular intervals in the circumferential direction on a rotating body. The fixed-side and rotating-side permanent magnets are arranged inclined with respect to the rotation direction of the rotating body, and the inclined arrangement of the fixed-side and rotating-side permanent magnets is set such that the tip of the rotating-side permanent magnet retreats with a repulsive force higher than when entering with respect to the tip of the same pole of the fixed-side permanent magnet. ​

Advantages of the Invention

[0008] The rotational force generating device of the present invention can generate a rotational force on a rotating body.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Modes for Carrying Out the Invention

[0010] The present invention has achieved the object of enabling rotation assistance as follows.

[0011] and

[0011] include a fixed-side permanent magnet supported at regular intervals in the circumferential direction and a rotating-side permanent magnet supported at regular intervals in the circumferential direction on a rotating body. The fixed-side and rotating-side permanent magnets are arranged to be inclined with respect to the rotation direction of the rotating body, and the inclined arrangement of the fixed-side and rotating-side permanent magnets is set such that the tip of the rotating-side permanent magnet retreats with a repulsive force higher than when entering with respect to the tip of the same pole of the fixed-side permanent magnet.

Example

[0012] [Rotating force generating device] FIG. 1 is a schematic cross-sectional view of a rotating force generating device according to Embodiment 1. FIG. 2 is a conceptual diagram showing the meshing of the rotating force generating device of FIG. 1. FIG. 3 is a conceptual diagram showing the arrangement of the fixed-side and rotating-side permanent magnets of the rotating force generating device of FIG. 1. FIG. 4 is an enlarged conceptual diagram of the main part showing the arrangement of the fixed-side and rotating-side permanent magnets of the rotating force generating device of FIG. 1. Note that the radial direction and the circumferential direction mean the radial direction and the circumferential direction with respect to the axis of the device.

[0013] As shown in FIGS. 1 to 4, the rotating force generating device 1 includes an internal gear 3, a rotating body 5, a driving gear 7, an interlocking gear 9, an intermediate gear 11, a fixed-side permanent magnet 13, and a rotating-side permanent magnet 15. Three sets of the driving gear 7, the interlocking gear 9, the intermediate gear 11, the fixed-side permanent magnet 13, and the rotating-side permanent magnet 15 are provided. Since these three sets have the same configuration, only one set will be described. However, the number of sets of the driving gear 7, the interlocking gear 9, and the intermediate gear 11 can be designed and changed.

[0014] The internal gear 3 is on the fixed side and is provided in the housing 17 of the device.

[0015] The rotating body 5 is arranged concentrically with the internal gear 3 within the housing 17. The rotating body 5 is composed of, for example, a pair of discs 5a and 5b, and is rotatably supported by the housing 17 via the input / output shaft 19. The disc 5a is provided with casters 5aa, and can rotate within the housing 17 by means of the casters 5aa. The input / output shaft 19 of the rotating body 5 is coupled to a rotation force transmission target, such as the output shaft of a windmill or a generator. However, the transmission target can also be such that the input / output shaft 19 of the rotating body 5 is coupled to the output shaft on the output side of other devices, etc.

[0016] The drive gear 7 is arranged between the pair of discs 5a and 5b of the rotating body 5, and is rotatably supported by the discs 5a and 5b via the support shaft 21. The outer diameter of this drive gear 7 is smaller than the radius of the rotating body 5, and it is arranged at an eccentric position on the outer peripheral side with respect to the input / output shaft 19 so as to be biased towards the outer peripheral side of the rotating body 5.

[0017] The interlocking gear 9 is arranged between the pair of discs 5a and 5b of the rotating body 5, and is rotatably supported by the discs 5a and 5b via the support shaft 23. The outer shape of this interlocking gear 9 is smaller than that of the drive gear 7, and it is arranged at an eccentric position on the outer peripheral side with respect to the input / output shaft 19 so as to be biased towards the outer peripheral side of the rotating body 5, similar to the drive gear 7. The interlocking gear 9 meshes with the internal gear 3.

[0018] The intermediate gear 11 is arranged between the pair of discs 5a and 5b of the rotating body 5, and is rotatably supported by the discs 5a and 5b via the support shaft 25. The outer diameter of this intermediate gear 11 is smaller than that of the interlocking gear 9, and it meshes with the drive gear 7 and the interlocking gear 9. Note that the intermediate gear 11 and the drive gear 7 do not mesh with the internal gear 3.

[0019] The number of teeth Z1, Z2, Z3 of the drive gear 7, the interlocking gear 9, and the intermediate gear 11 are in the relationship of Z1>Z2>Z3.

[0020] The stationary permanent magnet 13 is provided in parallel with the internal gear 3 and is fixed to the housing 17 so as to be supported at regular intervals in the circumferential direction. The stationary permanent magnet 13 can also be arranged, for example, by being embedded in the internal gear 3.

[0021] The permanent magnet 13 on the fixed side is composed of a bar magnet, and the longitudinal direction is the magnetization direction. This permanent magnet 13 is arranged to be inclined such that the inner side in the radial direction is the rear with respect to the rotation direction (circumferential direction) of the rotating body 5. The inclination means that in a plan view, the magnetization direction of the permanent magnet 13 is inclined with respect to the rotation direction of the rotating body 5. The inner diameter side end of this permanent magnet 13 protrudes into the housing 17.

[0022] The permanent magnet 15 on the rotating side is composed of a bar magnet, and the longitudinal direction is the magnetization direction. This permanent magnet 15 is provided adjacent to the drive gear 7 side and is fixed to a support disk 27 integral with the drive gear 7 so as to be supported at regular intervals in the circumferential direction. The permanent magnet 15 on the rotating side can also be arranged by embedding it in the drive gear 7 or the like.

[0023] The permanent magnet 15 on the rotating side is arranged to be inclined such that the outer side in the radial direction is the rear with respect to the rotation direction of the drive gear 7. The inclination means that in a plan view, the magnetization direction of the permanent magnet 15 is inclined with respect to the rotation direction of the rotating body 5. The outer diameter side end of this permanent magnet 15 is located within the range of the drive gear 7 in a plan view.

[0024] The permanent magnets 13 and 15 on the rotating side and the fixed side are set and arranged such that these permanent magnets 15 on the rotating side gradually enter from the front side in the rotation direction with respect to the permanent magnet 13 on the fixed side and receive repulsion and retreat on the rear side in the rotation direction.

[0025] These permanent magnets 13 on the fixed side and 15 on the rotating side are arranged such that the pole on the inner side in the radial direction of the permanent magnet 13 on the fixed side and the pole on the outer side in the radial direction of the permanent magnet 15 on the rotating side are the same pole.

[0026] Then, due to the rotation of the drive gear 7, the tip of the permanent magnet 15 on the rotating side moves with respect to the tip of the same pole of the permanent magnet 13 on the fixed side along the hypocycloid movement locus with respect to the internal gear 3. Note that the shape, arrangement, material, etc. of the permanent magnet 15 on the rotating side and the permanent magnet 13 on the fixed side can be freely set as long as the output is improved.

[0027] [Function and Effect] Taking wind power generation as an example, when the windmill rotates by the force of the wind, the rotating body 5 is interlocked and the interlocking gear 9 receives a revolution force around the input / output shaft 9 via the support shaft 23.

[0028] Therefore, the interlocking gear 9 revolves along the internal gear 3 while rotating meshingly with respect to the internal gear 3.

[0029] At the same time, the driving gear 7 also receives a revolution force around the input / output shaft 9 via the support shaft 21 due to the rotation of the rotating body 5 and revolves along the internal gear 3.

[0030] At this time, the driving gear 7 rotates meshingly with respect to the interlocking gear 9 via the intermediate gear 11 and rotates at an increased speed with respect to the internal gear 3.

[0031] Due to the increased-speed rotation and revolution of this driving gear 7, the tip of the permanent magnet 15 on the rotating side relatively moves with respect to the tip of the same pole of the permanent magnet 13 on the fixed side according to the hypocycloid movement locus with respect to the internal gear 3.

[0032] Due to such relative movement, the tip of the permanent magnet 15 on the rotating side gradually enters from the front side in the rotation direction with respect to the tip of the same pole of the corresponding permanent magnet 13 on the fixed side. Then, the tip of the permanent magnet 15 on the rotating side enters behind the corresponding permanent magnet 13 on the fixed side in the rotation direction before generating the repulsive force or when generating the repulsive force.

[0033] Thereby, the tip of the permanent magnet 15 on the rotating side is repelled in the inclination direction of the corresponding permanent magnet 13 on the fixed side. For this reason, the repulsive force when the tip of the permanent magnet 15 on the rotating side exits in the inclination direction of the permanent magnet 13 on the fixed side is relatively higher than when the tip of the permanent magnet 15 on the rotating side enters with respect to the permanent magnet 13 on the fixed side, and the differential energy returns to the windmill side via the input / output shaft 9.

[0034] Moreover, due to the increased rotation speed of the drive gear 7 and the number of drive gears 7, the action frequency of the rotating permanent magnet 15 with respect to the stationary permanent magnet 13 increases, and the differential energy returning to the windmill side is amplified.

[0035] This return of energy can assist the initial rotation on the windmill side and enable efficient wind power generation and the like.

[0036] After the rotating body 5 rotates, the rotating body 5 and the like become a flywheel, and the stable operation of the rotational force generating device 1 can be continued.

Embodiment

[0037] FIG. 5 relates to Embodiment 2 and is a schematic cross-sectional view of the rotational force generating device. FIG. 6 is a conceptual diagram showing the meshing of the rotational force generating device of FIG. 5. The basic configuration is the same as that of Embodiment 1, and the same reference numerals are given to the same or corresponding components, and duplicate descriptions are omitted.

[0038] The rotational force generating device 1 of Embodiment 2 is provided with only one set of a drive gear 7, an interlocking gear 9, and an intermediate gear 11, and the diameter of the drive gear 7 is enlarged.

[0039] In the cross-sectional view of FIG. 5, the overlapping of the meshing of the interlocking gear 9 and the intermediate gear 11 between the internal gear 3 and the drive gear 7 is schematically shown, and in the conceptual diagram of FIG. 6, the overlapping of the drive gear 7 and the support disk 27 is schematically shown.

[0040] The rotating permanent magnet 15 on the rotating side in Embodiment 2 is set to be inclined in the same direction as the stationary permanent magnet 13 with respect to the rotation direction. The inclination angle of the rotating permanent magnet 15 with respect to the radial direction of the rotating body 5 is, for example, in the range of 5 degrees to 30 degrees, and is set smaller than the inclination angle in the range of 20 degrees to 45 degrees with respect to the radial direction of the internal gear 3 of the stationary permanent magnet 13.

[0041] The stationary permanent magnet 13 is arranged along the internal gear 3 over the entire circumference in the same manner as in Embodiment 1, but only a part is shown in the figure, and the others are omitted.

[0042] Also in Example 2, when the tip of the rotating permanent magnet 15 moves relative to the tip of the like pole of the fixed permanent magnet 13, it gradually enters from the front side in the rotation direction with respect to the tip of the like pole of the fixed permanent magnet 13.

[0043] At the time of this intrusion, according to the inclination of the permanent magnets 13 and 15, before the magnetic forces of the permanent magnets 13 and 15 interfere with each other, the rotating permanent magnet 15 is positioned behind the corresponding fixed permanent magnet 13 in the rotation direction (see the permanent magnet 13 at the left end of FIG. 6 and the corresponding permanent magnet 15). As a result, the generation of a repulsive force that opposes the revolution direction of the drive gear 7 by the permanent magnets 13 and 15 at the time of intrusion is suppressed.

[0044] Even when the rotating permanent magnet 15 is closest to the corresponding fixed permanent magnet 13, it is positioned on the rear side in the rotation direction of the fixed permanent magnet 13. Thereby, as the tip of the rotating permanent magnet 15 approaches the fixed permanent magnet 13 in the radial direction, it receives a repulsive force in the direction intersecting the magnetization direction of the permanent magnet 13 and retreats to the rear side in the rotation direction.

[0045] And when the tip of the rotating permanent magnet 15 exits in the inclination direction of the fixed permanent magnet 13 rather than when it enters the fixed permanent magnet 13, the repulsive force becomes relatively higher, and the energy of the difference returns to the windmill side via the input / output shaft 9.

[0046] Moreover, due to the increased rotation speed of the drive gear 7 and the number of drive gears 7, the action frequency of the rotating permanent magnet 15 with respect to the fixed permanent magnet 13 increases, and the energy of the difference that returns to the windmill side is amplified.

[0047] By this return of energy, the initial rotation on the windmill side can be assisted, and wind power generation or the like can be efficiently performed.

[0048] After the rotating body 5 rotates, the rotating body 5 and the like become a flywheel, and the stable operation of the rotational force generating device 1 can be continued.

Example

[0049] FIG. 7 is a schematic cross-sectional view of the rotational force generating device according to Embodiment 3. FIG. 8 is a conceptual diagram showing the meshing of the rotational force generating device of FIG. 7. Note that the basic configuration is the same as that of Embodiment 1, and the same reference numerals are given to the same or corresponding components, and redundant descriptions are omitted. FIG. 7 shows a cross-section corresponding to the arrow view taken along line VII-VII in FIG. 8.

[0050] In this embodiment, the interlocking between the drive gear 7 and the intermediate gear 11 is performed by a chain 29 which is a winding transmission tool. Note that the winding transmission tool may be a belt although not shown in the drawings.

[0051] The drive gear 7 is provided concentrically on one side surface of the support disk 27. A permanent magnet 15 is fixed to the other side surface of the support disk 27 in the same manner as in Embodiment 2. The intermediate gear 11 has a concentric sprocket 31. A chain 29 is wound between the sprocket 31 of the intermediate gear 11 and the drive gear 7.

[0052] The tension side and the slack side of the chain 29 are respectively wound around the idler gears 33 and 35 between the drive gear 7 and the intermediate gear 11. In FIG. 8, the left side with respect to the drive gear 7 is the tension side, and the right side is the slack side. The chain 29 from the drive gear 7 via the idler gears 33 and 35 meshes with the outer periphery of the sprocket 31 of the intermediate gear 11.

[0053] The tension side of the chain 29 is directed in the revolution direction of the rotating body 5. The direction means that the component force of the tensile force of the chain 29 is directed in the revolution direction, and includes not only the case where the chain 29 is along the revolution direction but also the case where it is inclined with respect to the revolution direction as shown in FIG. 8. In FIG. 8, the tensions of the tension side and the slack side are indicated by thick arrows. Note that the tension is stronger on the tension side than on the slack side. The strength of this tension is indicated by the length of the arrow.

[0054] In this embodiment, the permanent magnets 13 on the fixed side are arranged in a full circle along the internal gear 3 in the same manner as in FIG. 6, but only a part is shown and the others are omitted.

[0055] In such an embodiment, similar to Embodiment 2, the rotation of the rotating body 5 can be assisted by the permanent magnet 15.

[0056] At this time, in this embodiment, the rotating body 5 can be pulled forward in the rotation direction by the tension side of the chain 29, and it becomes possible to more reliably assist the revolution of the rotating body 5. In addition, in Embodiment 3 as well, the same operational effects as those in Embodiment 2 can be achieved.

Embodiment

[0057] FIG. 9 relates to Embodiment 4 and is a schematic plan view of partial omission showing the meshing of the rotational force generating device. FIG. 10 is a schematic cross-sectional view showing a part of the rotational force generating device in FIG. 9 as viewed in the direction of the arrow X-X. FIG. 11 is a schematic plan cross-sectional view of the rotational force generating device in FIG. 10 as viewed in the direction of the arrow XI-XI. Note that the basic configuration is the same as that in Embodiment 1, the same or corresponding components are denoted by the same reference numerals, and redundant explanations are omitted.

[0058] As shown in FIGS. 9 and 10, in the rotational force generating device 1 of Embodiment 4, the fixed-side internal gear 3 of Embodiment 1 is used as the fixed-side sun gear 30. The sun gear 30 is supported by a fixed shaft 32 with respect to the housing 17.

[0059] The rotating body 5 is supported on the fixed shaft 32 via a thrust bearing 34.

[0060] Spacers 37 and 38 are interposed between the sun gear 30 and the housing 17 and between the sun gear 30 and the thrust bearing 34.

[0061] A pair of guide gears 36 meshing with the sun gear 30 are supported on the rotating body 5, and the drive gear 7 is rotatably supported via a support shaft 21. The interlocking gear 9 is supported on the rotating body 5 via a support shaft 23. The support shaft 23 is rotatable with respect to the rotating body 5 and revolves around the sun gear 30 as the rotating body 5 rotates.

[0062] The drive gear 7 is configured to be able to travel relative to the housing 17 around the sun gear 30 via the traveling body 39.

[0063] The traveling body 39 includes a support base 41 and a traveling base 43. The support base 41 fixedly supports the drive gear 7. The traveling base 43 rotatably supports the support base 41 via a thrust bearing 45. A caster 47 is rotatably attached to the support base 41 around its axis. The traveling body 39 travels relative to the housing 17 via the caster 47, and is configured to be able to swivel relative to the sun gear 30.

[0064] Therefore, taking wind power generation as an example, when the windmill rotates by the force of the wind, the rotating body 5 interlocks and the interlocking gear 9 revolves around the sun gear 30 via the rotating body 5 and the support shaft 23.

[0065] For this reason, the interlocking gear 9 revolves along the sun gear 30 while rotating itself by meshing with the sun gear 30.

[0066] At the same time, the drive gear 7 also revolves around the sun gear 30 non-meshingly via the support shaft 21 due to the rotation of the rotating body 5.

[0067] As shown in FIGS. 9 to 11, the drive gear 7 meshes and rotates with the interlocking gear 9, and is speeded up and rotates itself relative to the sun gear 30. The support disk 27 rotates integrally by this speeded-up drive gear 7.

[0068] Therefore, the same operation as in the first embodiment can be achieved between the rotating permanent magnet 15 and the fixed permanent magnet 13.

[0069] When the drive gear 7 revolves, the traveling body 39 can smoothly travel relative to the housing 17.

[0070] Thus, also in the fourth embodiment, the same operational effects as in the first embodiment can be achieved.

[0071] [Modification Example] FIG. 12 is a schematic cross-sectional view of a torque generating device according to a modification of the fourth embodiment.

[0072] In the torque generator 1 of this modified example, the sun gear 30 and drive gear 7 of the fourth embodiment are configured as sprockets, and the large diameter sprocket 30 and drive sprocket 7 are linked together by a chain 49. In this case, the large diameter sprocket 30, which corresponds to the sun gear, is not fixed but rotates together with the rotor 5.

[0073] Therefore, the drive sprocket 7 rotates and revolves on its axis due to the rotation of the rotor 5. This rotation and revolution of the drive sprocket 7 causes the drive sprocket 7 and the support disc 27 to rotate at an increased speed relative to the large diameter sprocket 30, thereby achieving the same effects as those described above. [Explanation of symbols]

[0074] 1. Rotational force generating device 3 Internal gear 5 Rotating body 7 Drive gear, drive sprocket 9 Interlocking gear 11 Intermediate gear 13 Fixed side permanent magnet 15 Rotating permanent magnet 29, 49 Chain (winding transmission device) 30 Sun gear, large diameter sprocket

Claims

1. A fixed-side permanent magnet supported at regular intervals in the circumferential direction, A rotating-side permanent magnet supported at regular intervals in the circumferential direction on a rotating body, Comprising, The fixed-side and rotating-side permanent magnets are arranged inclined with respect to the rotation direction of the rotating body, The inclined arrangement of the fixed-side and rotating-side permanent magnets is set such that the tip of the rotating-side permanent magnet retreats with a higher repulsive force than when entering with respect to the tip of the same pole of the fixed-side permanent magnet, A rotational force generating device.

2. The rotational force generating device according to Claim 1, A fixed-side internal gear, A rotating body arranged concentrically with the internal gear, A drive gear rotatably supported on the rotating body and arranged at an eccentric position with respect to the rotating body, An interlocking gear rotatably supported on the rotating body, arranged at an eccentric position with respect to the rotating body, and meshing with the internal gear, An intermediate gear rotatably supported on the rotating body, meshing with the drive gear and the interlocking gear, and making the rotation directions of the drive gear and the interlocking gear the same, Comprising, The fixed-side permanent magnet is supported on the internal gear side at regular intervals in the circumferential direction, The rotating-side permanent magnet is supported on the drive gear side at regular intervals in the circumferential direction, A rotational force generating device.

3. The rotational force generating device according to Claim 1 or 2, The rotating-side and fixed-side permanent magnets are inclined in the same direction with respect to the rotation direction, The inclination angle of the rotating-side permanent magnet with respect to the radial direction of the rotating body is smaller than the inclination angle of the fixed-side permanent magnet with respect to the radial direction, A rotational force generating device.

4. The rotational force generating device according to Claim 1, The rotating side is interlocked by a winding transmission tool, A rotational force generating device.

5. The rotational force generating device according to Claim 4, The tension side of the winding transmission tool is directed in the revolution direction of the rotating body, A rotational force generating device.

6. The rotational force generating device according to Claim 1, A fixed-side sun gear, A rotating body arranged concentrically and relatively rotatably with respect to the sun gear, A drive gear rotatably supported on the rotating body and arranged at an eccentric position with respect to the rotating body, An interlocking gear rotatably supported on the rotating body, arranged at an eccentric position with respect to the rotating body, and meshing with the sun gear and the drive gear, The fixed-side permanent magnet is supported on the housing side at regular intervals in the circumferential direction, The rotating-side permanent magnet is supported on the drive gear side at regular intervals in the circumferential direction, A rotational force generating device.

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