JPS60102871A - Magnetic force type speed change gear - Google Patents

Abstract

PURPOSE:To increase the transmitting torque by disposing an input rotor assembly and an output rotor assembly consentrically, thereby approaching the all poles of the assemblies. CONSTITUTION:An input rotor assembly 10 is rotatably provided with an input shaft as an axial center. An output rotor assembly 20 is rotatably provided inside the assembly 10 consentrically with an output shaft 21 disposed concentrically with the input shaft. A stable assembly 30 is disposed between the assemblies 10 and the 20. The assembly 30 acts to lead a magnetic flux between the opposed poles of the both assemblies 10, 20.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a magnetic transmission device 119, particularly a transmission device that utilizes magnetic attraction between iFj poles.

BACKGROUND ART A transmission device is known that receives power from a rotating shaft and rotates another rotating shaft at a rotation speed different from that of the rotating shaft. For example, the well-known float machine +fj7 is widely used as the transmission device:'i. . This gear mechanism has the advantage of a large transmission torque, but since the rotational force is transmitted by the meshing of the teeth, it is necessary to inject Yl, ', 1 lubricant, etc. Since a multi-connection th that meshes well with each other is required, it has the disadvantage that the structure becomes complicated.

For this reason, in recent years, each gear +li)':1') has been placed on a rotating body made of magnetic material.
Attempts are being made to put the eclipse force into practical use.

Figure 1 shows the firepower of a conventional magnetic type sharp gear unit [1=L].The transmission in this example consists of two rotating bodies 1 and 2 made of magnetic wire with different outer diameters, and a spur gear. The outer peripheral portions corresponding to the teeth were recently replaced with magnetic poles, resulting in a structure in which N poles and S poles are arranged alternately in the circumferential direction. Therefore,
When one rotating body 1 is rotated, the other rotating body 2 rotates at a different rotational speed due to the magnetic attraction between the magnetic poles of both rotating bodies 1 and 2.

In the above-mentioned transmission, each rotating body 1゜2 is non-contact, so it can have a long life, and structurally, the valley gear, which is commonly known as a gear, can be replaced with a rotating body made of magnetic material. Although it is simpler than a gear mechanism, it has the following drawbacks.

That is, in the above-mentioned transmission, as is clear from FIG. Since the transmission is performed by the magnetic attraction force between adjacent magnetic poles in a narrow range, there is a drawback that sufficient transmission torque cannot be obtained.

The purpose of the present invention is to provide a magnetic transmission 4 which has a relatively simple structure, has a long life, and can obtain a relatively large transmission torque. It's about doing things.

Structure of the Invention In order to achieve the above object, the present invention provides an input rotor having a plurality of magnetic poles differentially arranged on a circle J9 and rotatably provided. 1 boat 4.4
[And the same with a gap to the input rotor assembly:
A plurality of magnetic poles arranged at n-axis and having a number different from the number of magnetic poles of the input rotor assembly are provided so as to face the (d-pole) of the input rotor assembly, and are freely provided with the output shaft as the axis. 1d is interposed in the M gap of mj of the front-α inner rotor assembly and the magnetic poles facing each other in three dimensions on the rotor thread. The feature is that it is equipped with a stator assembly.

Embodiments Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

FIG. 2 shows a front view of the first embodiment of the present invention (a type that belongs to claim 2), and FIG. 3 shows a cross section taken along the line A--A in FIG. In each figure, the magnetic transmission of this embodiment includes an input rotor assembly 10 rotatably provided around an input shaft (not shown), and an output shaft disposed coaxially with the input shaft. An output rotor assembly 20 is rotatably provided inside the input rotor assembly 10 about an axis about the input rotor assembly 10, and both rotor assemblies 10. 2
The stator assembly 30 functions to reduce magnetic flux between two opposing magnetic poles.

As shown in FIG. 5, the input rotor assembly 10 has an input rotor hub 11 that is rotatably mounted around an input shaft (not shown), and a ring-shaped magnet 12 is mounted on the inner surface of the input rotor hub 11. It's been solidified. This magnet 1
20 Each magnetic pole on both sides [m has a toothed core 13 made of a magnetic material
．． 14 is fixed with its teeth 13a and 14a shifted by 180 degrees from each other. As is clear from FIG. 6, the toothed portions 13a and 14a of each toothed core 13.14 are excited to the north and south poles, respectively.

1'4a forms two magnetic poles arranged in alignment on the circumference.

Further, the output rotor assembly 20 has a circular magnet 22 fixed to the output shaft 21, and toothed cores 23 and 24 made of a magnetic material are provided on each magnetic pole surface on both sides of the high stone 220. 23a to 23c1 and 24a to 24c are fixed in a state shifted by 60U from each other.As is clear from Figures 8 and 82, the IW portions 23a to 2 of each toothed core 23.24
3c and 24a to 24c are each excited by N + -N a small force 4, SI to S3 poles, and each tooth portion 23a to 23c
, and 24a to 24c form six magnetic poles that are arranged to face the magnetic poles of the input rotor assembly 10.

Further, the stator assembly 30 has cores 32.33i made of two layers of magnetic material fixed to both sides of the annular non-magnetic material 31 as shown in FIG. As shown in the figure, four nonmagnetic bodies 31 and cores 32 and 33 are arranged in a row at intervals on the circumference, and these nonmagnetic bodies 31 and cores 32 and 33 are fixed to the stator frame 34.

The first embodiment of the present invention has the above configuration, and its operation will be explained below.

1. As shown in FIG. 2, the magnetic poles of the toothed portions 13a r 14a of each toothed core 13, 14 are set to N poles.

S pole, toothed portions 23a to 23c of each toothed core 23.24
124a to 24c are Nl, N2. Ns pole, S1
+S2+'S3 pole, the magnetic flux at this time is as shown by the arrow Φ
It flows like l, Φ2. Here, the front magnetic path is represented by a solid line arrow, and the back side magnetic path is represented by a dotted line arrow. The flow of magnetic flux at this time is also indicated by the solid line arrow Φ3 in FIG.
It is represented by Φ4.

As is clear from the flow of these magnetic fluxes, the N pole and the 83 pole, as well as the S pole and the N2 pole, are attracted to each other by magnetic attraction and maintain a stable state.

Next, 1. Assemble the input rotor assembly 10 from the state shown in FIG.
When rotated by 45 degrees clockwise, as shown in Figure 4, the N pole attracts the S2 pole while maintaining the attraction state with the S8 pole, and the separated S pole becomes the attraction state with the N2 pole. While holding , attract the N1 pole.

Therefore, in this case, the magnetic flux flows as shown in Φl and Φ2. As a result, the output rotor assembly 20 moves counterclockwise by 1
Rotate only 5 degrees.

Next, if the input rotor assembly 10 is further rotated by 45 degrees clockwise from the state shown in FIG. 4, the N pole will strengthen its attraction with the S2 pole as shown in FIG. The pole is N1
Strengthen the attraction with the pole. Therefore, the magnetic flux flows as shown. As a result, the output rotor assembly 20 rotates an additional 15 degrees in the counterclockwise direction from the state shown in FIG.

In the same manner, the input rotor assembly 10 is moved clockwise 9
For each 0 degree rotation, the output rotor assembly 20 can rotate 50 degrees counterclockwise to provide a deceleration of 30/90=115.

Fig. 6 shows a second embodiment of the present invention (a type belonging to claim 5), and Fig. 7 shows a cross section taken along line B-B in Fig. 6. Components that are the same as those in the previous embodiment are designated by the same reference numerals, and their descriptions will be omitted. The magnetic transmission of this embodiment includes an input rotor assembly 40, an output rotor assembly 50, and a stator assembly 6 as described below.
Consists of 0.

As shown in FIG. 7, the input rotor assembly 10 has a ring-shaped yoke 41 made of a magnetic material fixed to the inner surface of the input rotor hub 11, and each N@!! , , Two magnets 42 and 43 having S poles are fixed facing each other.

Further, the output rotor assembly 50 has a cylindrical magnet 51 fixed to the output shaft 21, and this magnet 51 has N s "N 3 poles, S1 to S1 arranged in the circumferential direction as shown in FIG. 6.
It is integrally formed with six S3 pole magnets.

As shown, four of them are arranged at intervals on the circumference.

The second embodiment of the present invention has the above configuration, and its operation will be explained below.

First, when the magnetic pole gates of each assembly are in the state shown in FIG. 6, the magnetic flux is as shown by the arrow Φ1. Φ2゜ΦZ+ +
It flows as shown by Φt2. Here, Φ41Φt2 is leakage magnetic flux that does not contribute to the rotational force. As is clear from these magnetic flux flows, the N pole and 82 pole, and the S pole and N
The single poles are attracted to each other by magnetic attraction and maintain a stable state.

Next, if the input rotor assembly 40 is rotated by 45 degrees clockwise from the state shown in FIG. 6, the N pole will remain fully attracted to the S2 pole while the S3 The J and S poles maintain their suction state with the Nl poles, and then N 2 Ik is suctioned.

Therefore, the magnetic flux flows as shown. As a result, the output rotor assembly 50 rotates 15 times in the direction opposite to R41.

Note that when the magnetic fluxes ΦAl lΦ72+Φ, 53 +Φt4 are balanced, these magnetic fluxes do not contribute to the rotational force.

NextrC1 Manual rotor assembly 40 from the state shown in FIG.
If it is rotated further clockwise by 45 degrees (·) times 'ljJ', as shown in FIG. 9, the N pole will intensify the suction sound with 5341, and the S pole will intensify the suction with N2 pole. Therefore, the magnetic flux flows as shown. As a result, the output rotor assembly 50 rotates an additional 15 degrees counterclockwise from the state shown in FIG. Note that the magnetic flux Φt11Φt2 is leakage magnetic flux that does not contribute to the rotational force.

Similarly, the input rotor assembly 40 is rotated 9 clockwise.
For each 0 degree rotation, the output rotor assembly 50 can rotate 60 degrees counterclockwise to provide a 50/90 e 115 deceleration effect.

In addition, in the above-mentioned second embodiment, the configuration of the north pole and the south pole may be composed of only magnets or a combination of magnets and magnetic bodies.

FIG. 10 shows a cross section taken along the line C--C of FIG. 10 according to a fifth embodiment of the present invention (claim 10), and in each figure, the same members as those of the first embodiment described above are given the same reference numerals. The description will be omitted.The magnetic transmission of this embodiment includes an input rotor assembly 70 and an output rotor assembly 80 as described below.
, and a stator assembly 90.

As shown in FIG. 11, the input rotor assembly 70 is fixed to the curve of the input rotor hub 11 and has a ring-shaped magnet 71, and each magnetic pole surface on both sides of the magnet 710 has a magnetic material 21= toothed core 72.

73 is fixed with its teeth 72a and 73a facing each other. As is clear from FIG. 11, the 1"11 portion 72a of each toothed core 72.73.

73a are excited to the N+1A and S poles, respectively.

Further, the output loaf assembly 80 has a single-layer toothed core 81 fixed to the output I sleeve 21, and as shown in FIG. They are formed at equal intervals in the circumferential direction.

Further, the stator assembly 90 has cores 92 and 93 made of two layers of magnetic material fixed to both surfaces 1i of a ring-shaped non-magnetic material 910 as shown in FIG.
As shown in FIG.
3U, which is fixed to the stator frame 34.

The third embodiment of the present invention has the above configuration, and its operation will be explained below.

First, when the perpendicularity relationship of the magnetic poles of each assembly is in the state shown in FIG. 81a and the core 93 and flows to the south pole.

As is clear from the flow of this magnetic flux, the north and south poles are attracted to each other through the core 92, the teeth 81a, and the core 93f, and maintain a stable state.

Next, from the state shown in FIG.
When rotated clockwise by 45 degrees, the N and S poles attract each other through all the teeth 81b while maintaining the attraction state through the teeth 81a, as shown in FIG. Therefore, the magnetic flux flows as shown. As a result, output rotor assembly 80 rotates 15 degrees counterclockwise from the state shown in FIG.

Next, the human-powered rotor assembly 70 is assembled in the state shown in FIG.
By further rotating clockwise by 45 degrees, the N and S poles will intensify the suction through the teeth 81b, as shown in FIG. Therefore, the magnetic flux flows as shown. As a result, output rotor assembly 80 rotates an additional 15 degrees counterclockwise from the state shown in FIG.

Similarly, the manual rotor assembly 7o is moved clockwise 9
Every time the output port-tie 11 rotates by 0 degrees, the output port-tie 11 solid body 80 rotates by 30 degrees counterclockwise, and can perform a deceleration effect of 50/90=115.

Modification Examples In each of the embodiments 1j described above, m 4a<H of the manual rotor assembly and the output rotor assembly are each 2.
Although the number of poles is selected to be 64 (or 64. 1'
I can do 44 things.

Next, FIGS. 14 and 15 show a modification of the sixth example M11, in which the core of the stator assembly is a toothed core. In the present embodiment, the misaligned cores 72, 73 of the input rotor assembly each have two teeth 72a spaced apart by 1800 angles 11Effi in the circumferential direction.

72b1 and 73, a, 73 b, ffi,
The core 81 of the output rotor assembly has ten teeth 81a to 81j arranged in the circumferential direction. Each of the cores 92' and 93' of the stator assembly has a toothed portion 92'a opposing the toothed portion of the core 81 of the output rotor assembly.

92'b, and 93'a and 93'b.

In this example, the core 72.7 of the input rotor assembly
3 and the opposing teeth of the core 81 of the output rotor assembly.
Magnetic flux flows as shown through the teeth 2' and 93'. Therefore, by rotating the input rotor assembly clockwise, the output rotor assembly is changed in speed and rotated counterclockwise in the same manner as in the sixth embodiment.

The above example shows a modification example in which the core of the stator assembly in the sixth embodiment is a toothed core.
The core of the stator assembly in the embodiment can also be a toothed core.

Next, although not shown, as a modification of the first embodiment, each of the cores 32.33 f% aligned in the axial direction in the stator assembly 30 of FIGS. 2 and 6 is The core 33' (i: can also be arranged circumferentially offset with respect to the other core 32.) This lifting platform and the 21 toothed core of the output loaf assembly (in Figs. 2 and 6) 23, 24) align the respective teeth in the axial direction.

It should be noted that it is also possible to use the human output relationships of each of the embodiments described above in reverse, and it is also possible to arbitrarily set the rotational directions of the input rotor assembly and the output rotor assembly.

Effects of the Invention As explained above, according to this book, the human-powered rotor assembly and the output rotor assembly are arranged on a rotational axis. Since the magnetic poles of the valley rotor assembly are located close to each other, the transmission torque is larger than that of conventional magnetic transmissions. can.

Since there is no contact between the input rotor assembly and the output rotor assembly, there is no need to inject lubricant or the like as in the gear machine 411j, and the life of the transmission can be extended.

Therefore, the transmission of the present invention is most suitable for use in places where no maintenance is required, and is suitable for relatively light-load transmission.

Since the transmission of the present invention is composed of two rotating parts (input loaf assembly and output rotor assembly) and one fixed part (stator assembly) that do not contact each other, the gear The structure is simpler than the mechanism.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional magnetic transmission, FIG. 2 is a block diagram showing a first embodiment of the present invention, and FIG. 6 is a block diagram of a conventional magnetic transmission.
A sectional view taken along line A, FIGS. 4 and 5 are explanatory diagrams of the operation of the first embodiment, FIG. 6 is a configuration diagram showing the second embodiment of the present invention, and FIG. 7 is a diagram showing B of FIG. 6. -B sectional view, FIGS. 8 and 9 are operation explanatory diagrams of the second embodiment, FIG. 10 is a configuration diagram showing the fifth embodiment of the present invention, and FIG. C of
12 and 16 are operational explanatory diagrams of the sixth embodiment 1, and FIGS. Figures are 1 of Figures 21-14]
-D line sectional view. 10.40.70...Input rotor, f1 [stereoscopic, 20
゜50.80...Output rotor assembly, 30, 60
. 90... Data assembly, 12, 22, 42-51° 71... Magnet, 13, 14, 23, 24. 72-81
... Toothed core, 31.91 ... Non-magnetic material, 32゜3
3, 61, 92, 92', 93, 93'・
...Core, 41...York. Figure 1C- Figure 12

Claims (1)

[Scope of Claims] (1) An input rotor assembly having a plurality of magnetic poles arranged in alignment on a circumference and rotatably provided around an input shaft; A plurality of abrasives, the number of which is different from the number of magnetic poles of the 13iJ input rotor assembly, are distributed at intervals between the input rotor assembly and the output shaft. an output rotor assembly that is rotatably provided as a shaft, and a stator that is interposed in the gap between the two-end rotor assembly cups and acts to guide magnetic flux between opposing magnetic poles of the two rotor assemblies. A magnetic rapid speed device I':' characterized by comprising an assembly.
-0 (2) The output rotor assembly has valleys (↑a) on both sides of the ring-shaped magnet (without fixing the magnetic pole face oriented core, the output rotor assembly is connected to each magnetic pole of both 11111 of the cylindrical magnet). A oriented core that is 1ψ1 different from the oriented core of the input rotor assembly is fixed on the surface, and the stator assembly has a ring-shaped non-magnetic material with both sides open at a predetermined interval in the circumferential direction. A magnetic transmission according to claim 1, in which a plurality of cores are fixedly attached to each other.(3) The input rotor assembly is formed on the inner circumferential surface of a yoke made of a ring-shaped magnetic material at a predetermined interval in the circumferential direction. the output rotor assembly is an integrally molded cylindrical magnet having a plurality of circumferentially aligned magnetic poles; Claim 1 consisting of a plurality of cores arranged at predetermined intervals
Magnetic transmission device as described in . (4) The input rotor assembly is formed by fixing a toothed core to each magnetic pole surface on both sides of a ring-shaped magnet, and the output rotor assembly is integrally formed having a plurality of teeth arranged in a circumferential direction. The magnetic force type according to claim 1, wherein the stator assembly does not include a cylindrical core, and the stator assembly has a plurality of cores fixed to both sides of a ring-shaped non-magnetic material at predetermined intervals in the circumferential direction. gearbox. (5) Each of the plurality of cores provided in the stator assembly is an axial rod consisting of a toothed core having a toothed portion facing the magnetic pole of the output rotor assembly. (Magnetic transmission device) as described in item 1.