JPS5840051B2 - Roller bearings using magnetic force - Google Patents

Description

[Detailed description of the invention] The present invention relates to a roller bearing that utilizes magnetic force.

The present applicant previously filed Japanese Patent Application No. 54-173243 for an invention entitled "Rolling Bearing Applying Magnetism."

In the rolling bearing of this prior invention, the rollers are magnetized, and the rollers rotate while closely contacting the inner race or the outer race and maintaining a constant distance between them.

In this prior invention, because of the above structure, the rollers are in close contact with the outer race or the inner race and rotate reliably, so the rollers do not cause sliding resistance, the rotational resistance of the rollers is reduced, and there is no retainer between the rollers. This has the advantage that the rollers can be kept at a constant distance even without the use of rollers.

However, in the specification of the prior invention, the rollers are magnetized in the axial direction.

In such a magnetized direction, for example, the north and south poles of the roller 1 are located near both sides thereof, and the north and south poles of the inner race 2 are also located near both sides thereof.

As a result, the mutual attraction between roller 1 and inner race 2
This occurs only near both sides of the bulge, and there is a drawback that the suction effect is weak in the center.

Furthermore, the magnetic repulsion for maintaining the distance between the rollers 1 is concentrated on both end surfaces of the rollers 1, and the magnetic repulsion is weak in the center.

That is, there is a drawback that the ratio of the magnetic flux that can be used for the above purpose out of each total magnetic flux is reduced.

The inventor of the present invention has noticed the drawbacks of the prior invention and aims to eliminate the drawbacks.

That is, in the present invention, in order to magnetize the roller 1 as shown in FIG. The magnetic poles are magnetized.

In FIG. 1, the S pole is magnetized on the inner peripheral surface and the N pole is magnetized on the outer peripheral surface.

On the other hand, inner lace 2 or outer lace 3 is the second
As shown in the figure, the inner circumferential surface and the outer circumferential surface are magnetized with different magnetic poles.

In FIG. 2, the inner circumferential surface is magnetized to the north pole and the outer circumferential surface is magnetized to the south pole.

By magnetizing in this way, the rollers 1 and the inner race 2 or the outer race 2 exert a uniform and strong magnetic attraction effect over the entire contact surface of each other, and furthermore, the mutual magnetic repulsion effect between the rollers 1 is also completely suppressed. It acts uniformly and strongly in the middle direction, and the attraction force between the roller 1 and the races 2 and 3 and the repulsive force between the rollers 1 are dramatically increased compared to the prior invention.

That is, the total magnetic flux generated by the rollers 1 or the races 2 can be concentrated as necessary and effectively and can be generated uniformly, and the magnetic attraction and repulsion can be dramatically increased compared to the prior invention.

The embodiments shown in FIGS. 3 to 8 will be described below.

Embodiments of the bearing of the present invention shown in the drawings will be described below.

(1) In the embodiment shown in FIG. 3, the outer periphery of the inner race 2 is magnetized with a N pole, and the outer periphery of the roller 1 is magnetized with an S pole.

Therefore, the roller 1 is fixed by the outer race 3, the inner race 2 rotates in the direction of arrow X2, and revolves in the direction of arrow X2 while rotating in the direction of arrow y2 in FIG.

Thus, roller 1 comes into close contact with inner race 2 during rotation,
Moreover, the distance between the rollers 1 is automatically maintained at a constant distance because the S poles repel each other.

Therefore, there is no sliding on the contact surfaces between the inner race, outer race, and retainer, and the resistance during rotation is significantly reduced.

Actually, as shown in Figure 3 ■, there are N and S poles on the inner and outer peripheral surfaces of roller 1.
The poles are arranged in parallel, and corresponding N and S poles are similarly arranged on the inner race 2.

(2) Also, fix the inner lace 2 as shown in Figure 4,
When the outer race 3 is rotated in the direction of arrow X4, the roller 1 revolves in the direction of arrow X4 while rotating in the direction of arrow y4.

At this time, as in the case of Fig. 5, the S pole of roller 1 is attracted to the N pole of inner race 2, and the S poles of rollers 1 repel each other.
Colo 1 continues to rotate.

Roller 1 has an N pole and an S pole on its inner and outer peripheral surfaces as in the case of Fig. 3.
The poles are placed.

(3) FIG. 5 shows the case where the outer race 3 is magnetized.

That is, assuming that the N pole is magnetized on the inner circumference of the outer race 3, the inner race 2 is fixed and the outer race 3 is
When rotated in the direction of arrow Z and force, roller 1 rotates in the direction of arrow y,
While rotating in the direction of arrow X, it revolves in the direction of force.

In this case, the rollers 1 rotate while closely contacting the outer race, and the distance between the rollers 1 is also kept constant.

(4) In the case of FIG. 6, the case is shown in which the inner race 2 is fixed to the outer race 3 and rotated in the X6 direction.

At this time, the roller 1 rotates in the direction of arrow X6 and revolves in the direction of arrow X6.

In this case as well, the rollers 1 rotate while closely contacting the outer race 3 and keeping the distance between the rollers 1 constant.

(5) In the case of Figures 7 and 8, the inner race 2 is made of a magnetic material that is not magnetized, and the outer race 3 is made of stainless steel.
The case is shown in which only the roller 1 is magnetized using a non-magnetic material such as brass.

Now assuming that the outer race 3 is fixed and the inner race 2 rotates in the direction of arrow X7, the roller 1 will rotate in the direction of arrow X.
It rotates in 7 directions and revolves in the direction of arrow X7.

In this case, the N and S poles on both sides of roller 1 are inner.
By being attracted to the inner race 2, the roller 1 comes into close contact with the inner race 2.

In this embodiment, since the outer race 3 is a non-magnetic material, the roller 1 is in close contact only with the inner race 2, and the outer race 3 is in close contact with only the inner race 2.
This has the advantage that it does not interfere with the magnetic attraction action.

Conversely, the same effect can be achieved even if the inner race 2 is made of a non-magnetic material and the outer race 3 is made of a magnetic material.

Effects of the present invention: Since the inner and outer peripheral surfaces of the roller 1, outer race 3, and inner race 2 are magnetized to have different polarities, the total magnetic flux is This makes it possible to concentrate the magnetic flux as effectively as necessary, to perform a uniform and strong magnetic attraction action, and to produce a uniform and strong magnetic repulsion action between the rollers 1.

Therefore, the rollers 2 and 3 are reliably brought into close contact with each other, and the distance between the rollers 1 is also reliably maintained.

Furthermore, there is no slippage in the rotation of roller 1, and it lasts a long time.

[Brief explanation of drawings]

Figure 1 ■: Perspective view of roller 1, Figure 1 ■: Cross-sectional view of Figure 1 ■, Figure 2: Cross-sectional view of inner race 2 and outer race 3, Figure 3 ■: Outer race 3 that is not magnetized. Example 3 in which the inner race 2 is fixed and the magnetized inner race 2 is rotated.
Figure ■: Vertical sectional view of Figure 3 ■, Figure 4 2 Example of a case where the magnetized inner race 2 is fixed and the non-magnetized outer race 3 is rotated, Figure 5 2 The non-magnetized inner race 2 An example in which the inner race 2 is fixed and the magnetized outer race 3 is rotated, Fig. 6.2 An example in which the non-magnetized inner race 2 is rotated and the magnetized outer race 3 is fixed, Fig. 7: FIG. 8 is a longitudinal sectional view of FIG. 7, an embodiment in which the non-magnetic outer race 3 is fixed and the magnetic inner race 2 is rotated. 1: Colo, 2: Inner lace, 3: Outer lace,
11: Through hole in the axial direction.

Claims (1)

[Claims] 1. A roller bearing that utilizes magnetic force in which the rollers 1 are magnetized and the rollers 1 rotate while closely contacting the inner race 2 or the outer race 3 and maintaining a constant distance from each other, comprising: A roller bearing characterized in that an axial through hole 11 is bored in the through hole 1, and the inner circumferential surface of the through hole 1 and the outer circumferential surface of the roller 1 are magnetized to different magnetic poles. 2. The roller bearing according to claim 1, wherein the inner circumferential surface and the outer circumferential surface of the inner race 2 or the outer race 3 are magnetized to different magnetic poles.