JP2000175404A - Balance correction device and rotating apparatus equipped with the device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely correct even a minor unbalance. SOLUTION: A motor 19 having a balancing correction apparatus 18 is stored in a casing 21, and the whole motor 19 is supported under an inclined condition inside the casing 21 by support members 22a, 22b fixed to the inner surface of the casing 21. With respect to each spherical bodies serving as a balancing body, regulating force based on gravity is forcibly added orthogonally to the direction of centrifugal force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a balance correcting device which is attached to a rotating device such as a motor and corrects imbalance during rotation, and a rotating device provided with the same.

[0002]

2. Description of the Related Art Generally, there are various types of motors.
One of them is a recording disk drive for recording and reproducing data. There are various types of recording disks such as CD, FD, MO, MD, and DVD. Since these recording disks have different specifications such as recording / reproducing method, data capacity, rotation speed, recording density, etc., and materials and prices of the disks, there are various motors for driving each disk.

[0003] In recent years, electronic information has shifted from characters to images, and the accompanying advancement and sophistication of information has made it possible to record and reproduce such information in large quantities and quickly and at a low cost. There is a need for a recording disk and a driving device for driving the recording disk.

[0004] For example, in the case of a CD, it first appeared for music reproduction, but its advantages have been extended to CD-ROMs for computers. As a result, the data capacity increases, the operation time (seek time) is shortened, and the recording disk side is rotated faster, that is, the motor for driving the recording disk is sped up. A speed exceeding 20 times speed has been realized.

Now, a specific configuration of a conventional recording disk drive motor will be described with reference to FIG.

As shown in FIG. 9, a lower end of a substantially cylindrical holding member 2 as a stationary member is fitted into an opening formed in a fixing member 1 such as a chassis. The obstruction plate 3 is closed, the thrust receiver 4 is placed on the obstruction plate 3, disposed on the bottom of the holding member 2, and the slide bearing 5 is fitted inside the holding member 2.

Further, a core 7a is fitted on the outside of the holding member 2, and a winding 7b is wound around the core 7a to form a stator 7 as a stationary member. Further, a shaft 8 which is a rotating member is fitted into the slide bearing 5, a lower end of the shaft 8 is in contact with the thrust receiver 4, and an upper end thereof is arranged to protrude above the holding member 2. A hub member 9 as a rotating member made of a non-magnetic material such as aluminum is fitted to the upper end of the shaft 8, and a yoke member 10 as a rotating member made of a magnetic material such as iron is attached to the hub member 9. .

The yoke member 10 comprises a substantially disc-shaped base and a hanging part which is formed to be integrally formed by hanging down on the periphery of the base, and around the opening formed in the center of the base. The portion is attached to the lower end of the hub member 9 by caulking. Further, a driving magnet 11 is fitted inside the hanging portion of the yoke member 10 and is disposed at a position facing the stator 7.

As shown in FIG. 9, a turntable portion 13 is formed outside the hub member 9, and a clamp magnet 14 is embedded in the center of the hub member 9 so as to form substantially the same surface as the upper surface. This clamp magnet 1
By 4, the disk pressing means (not shown) of the drive unit is magnetically attracted, and the recording disk D is fixed. Then, the direction of current flow to the winding 7b of the stator 7 is controlled, and the stator 7 generates a rotating magnetic field. By repeating the attraction and repulsion of the rotating magnetic field and the static magnetic field with the driving magnet 11, the stationary magnetic field is stopped. The driving magnet 11, the yoke member 10, the hub member 9 and the shaft 8 rotate with respect to the stator 7 in the state, whereby the turntable portion 13 and the recording disk D rotate in a certain direction.

[0010] By the way, the increase in the speed of the motor causes an imbalance in weight balance due to dimensional errors or the like of the respective parts, which has not been a problem until then, and a balance correction device for correcting such imbalance. Conventionally, as shown in FIG. 9, for example, a moving path 16 composed of an annular space is formed by the lower surface of the turntable portion 13 of the hub member 9 and the base of the yoke member 10, and a plurality of balancing members are formed on the moving path 16 as balance bodies. A recording disk drive motor 19 incorporating a balance correction device 18 that accommodates the spherical body 17 movably in the circumferential direction has been proposed.

[0011]

However, CD-ROMs
In the recording disk D, etc., various printings are performed on the surface opposite to the recording surface, and slight imbalance occurs in the recording disk D due to the weight of the ink used for printing.
However, if the imbalance is extremely small, the balance correction device 18 including the moving path 16 of the annular space and the plurality of spheres 17 accommodated therein cannot completely correct the imbalance, and the imbalance is extremely small. In the motor 19 rotated with the recording disk D mounted thereon, a problem arises in that the rotation fluctuation increases when the balance correction device 18 is provided, rather than when the balance correction device 18 is not provided.

Further, in the case of the motor 19 rotated by mounting the recording disk D or the like having a small unbalance, if the above-described balance correcting device 18 is provided, the motor 1 having the same configuration
Even with 9, there is a problem that the vibration value of the rotational shake changes every startup.

One of the causes of these problems is that the frictional force acting on the sphere 17 in the balance correction device 18 is closely related to the rotation of the motor. Cannot be moved accurately to a certain area including this point,
It will stop at an unbalanced position. In order to reduce the frictional force, the moving surface of the spherical body 17 may be mirror-polished. However, there is a problem that this mirror-polishing process requires a very large cost.

An object of the present invention is to make it possible to reliably correct even a slight imbalance.

[0015]

In order to solve the above-mentioned problems, a balance correcting device according to the present invention comprises a moving member formed by an interlocking member rotating in conjunction with a rotating member and an annular space formed in the interlocking member. Road, a balance body movably accommodated in the moving path, and additional means for forcibly applying an adjustment force in the direction of the moving path to the balance body. I have.

If the rotating member or the like has a minute imbalance, a centrifugal force is generated by the minute imbalance, and the rotation axis of the rotating member is deflected to cause rotational vibration. At a rotation speed higher than the critical speed, the rotating body tends to rotate around the center of gravity, so the center of gravity of the rotating member gradually approaches the center of the bearing. Since there is a deviation from the rotation center, the centrifugal force acting on the balance body accommodated in the moving path does not become perpendicular to the moving path wall surface, but has a component force in the tangential direction of the moving path, and the balancing body gradually The balance body is moved, and finally the balance body moves to a balance position where the overall center of gravity composed of the rotating member and the balance body coincides with the center of the rotating body. At this time, the balance body also coincides with the center of the bearing. In this state, the rotating member can rotate.

The resultant force of the centrifugal force component in the tangential direction of the moving path and the adjusting force by the additional means in the tangential direction of the moving path is the frictional force that hinders the smooth movement of the balance body. If the adjusting force is applied so as to exceed the maximum static frictional force applied to the balance body, the balance body slightly vibrates in the vicinity of the balance position and easily moves to the balance correction position.

Therefore, according to the above-described configuration, when a rotating device such as a motor mounted with a disk having a small unbalance is rotated, the occurrence of unbalance due to the stop at the unbalanced position of the balance body occurs. In addition to minimizing the imbalance, the balance body moves quickly in the moving path, so that a minute imbalance is reliably corrected.

At this time, it is preferable that the adding means applies gravity or magnetic force to the balance body as an adjusting force. Further, the balance body is preferably a rolling body such as a sphere, a fluid, a semi-fluid, a powder, or the like. In addition, the travel route
In addition to those formed by partition walls, partition walls, etc., those formed by concave portions formed in a disk-shaped member are desirable.

Further, the balance correcting device according to the present invention is characterized in that the adding means comprises a member for adding the adjusting force based on gravity to the balance body by supporting the interlocking member in an inclined state. I have.

In this manner, by inclining the moving member by inclining the interlocking member, it is possible to cause the component of gravity in the direction parallel to the inclined surface of the moving member to act on the balancer as an adjusting force. The balance force is obtained by a minute vibration of the balance body in the vicinity of the equilibrium position by a combined force of the component force in the tangential direction of the moving path of the adjustment force and the centrifugal force applied to the balance body in the same direction as the adjustment force. Movement of the body to the balance correction position is facilitated, and minute imbalance can be reliably corrected.

Further, the balance correcting device according to the present invention is characterized in that the adding means is means for adding the adjusting force by magnetic force to the balance body.

This makes it possible to apply an adjusting force to the balance body without tilting the interlocking member. This is effective, for example, when the interlocking member cannot be tilted due to installation space. .

Further, the balance correcting device according to the present invention is characterized in that the balance body comprises a rolling body. In this case, the rolling element has an advantage that the friction when moving in the moving path is small, and the handling when accommodating in the moving path is easy.

Further, the rotating device according to the present invention comprises a stationary member and a rotating member rotatably provided with respect to the stationary member, wherein the interlocking member rotates in conjunction with the rotating member; In a rotating device provided with a balance correcting device including a moving path formed of an annular space formed in the moving path and a balance body movably accommodated in the moving path, the rotating device is moved in the direction of the moving path with respect to the balance body. The present invention is characterized in that an additional means for forcibly applying the adjusting force is provided.

According to such a configuration, when the rotating member or the like has a minute imbalance, if the minute unbalance causes a rotational runout, the rotating member and the balance body are formed at a rotational speed higher than the critical speed. Between the center of gravity, the center of the rotating body shape and the center of the bearing, a centrifugal force acts on the balance body around the center of the bearing, and a component force of the centrifugal force in the tangential direction of the moving path and the additional means The balance body vibrates slightly near the balance position by adding an adjustment force so that the combined force of the adjustment force and the component of the moving path tangential direction exceeds the maximum static friction force applied to the balance body. It becomes easy to move to the position. Therefore, the occurrence of imbalance due to the stop at the unbalanced position of the balance body is suppressed as much as possible, and the minute imbalance is reliably corrected by the balance body moving quickly in the moving path.

Further, in the rotating device according to the present invention, the additional means supports the stationary member, the rotating member and the interlocking member in a housing, and supports the housing in an inclined state, thereby providing gravity. And a member for applying the adjusting force based on the above to the balance body.

With this configuration, the casing itself is inclined to incline the moving path, so that the component of gravity in the direction parallel to the inclined surface of the moving path acts on the balancer as an adjusting force. The balance body can be slightly vibrated in the vicinity of the equilibrium position by the combined force of the component force in the tangential direction of the moving path of the adjustment force and the component force in the same direction as the adjustment force of the centrifugal force applied to the balance body. This facilitates the movement of the balance body to the balance correction position, and makes it possible to reliably correct a minute imbalance.

Further, in the rotating device according to the present invention, the adding means may include a housing accommodating the stationary member, the rotating member and the interlocking member therein, and support these members in an inclined state in the housing. Thus, it is characterized by being constituted by a member for applying the adjusting force based on gravity to the balance body.

In this manner, the moving path is inclined by inclining the interlocking member in the housing, so that the component of gravity in the direction parallel to the inclined surface of the moving path acts on the balancer as an adjusting force. The balance force is combined with the component force in the same direction as the adjustment force of the centrifugal force to the balance body in the same direction as the adjustment force moving path tangential component force. This facilitates the movement of the balance body to the balance correction position, and makes it possible to reliably correct a minute imbalance.

Further, the rotating device according to the present invention is characterized in that the adding means comprises a member for supporting only the interlocking member in an inclined state and applying the adjusting force based on gravity to the balance body. .

In this way, by inclining the moving member by inclining the interlocking member, it is possible to cause the component of gravity in the direction parallel to the inclined surface of the moving path to act on the balancer as an adjusting force. By the combined force of this adjusting force component of the moving path tangential direction and the centrifugal force applied to the balance body in the same direction as the adjustment force, the balance body is slightly vibrated near the equilibrium position to make the balance body Easy to move to the balance correction position,
Minute imbalance can be corrected reliably.

Further, the rotating device according to the present invention is characterized in that the adding means is means for applying the adjusting force by magnetic force to the balance body. In this case, an adjusting force can be applied to the balance body without tilting the interlocking member.

Further, the rotating device according to the present invention is characterized in that the balance body comprises a rolling element. In this case, the rolling element has the advantage that the friction when moving in the moving path is small, and the handling when accommodating in the moving path is easy.

[0035]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. This embodiment is an example of a CD-ROM drive motor as a rotating device provided with a balance correction device. FIG. 1 is a front view showing a schematic configuration,
2 to 5 are explanatory diagrams of the operation. However, FIG. 9 is also referred to in the following description.

In the present embodiment, the basic structure of the motor is substantially the same as that of the conventional motor described above, and the following points are greatly different. That is, in the present embodiment, as shown in FIG. 1, the motor 19 having the configuration shown in FIG. 9 is housed in the housing 21, and at this time, the support member 2 fixed to the inner surface of the housing 21.
The entire motor 19 is supported in an inclined state in the housing 21 by 2a and 22b, so that an adjusting force in the direction of the moving path is forcibly applied to each of the spheres 17 as balance bodies. .

At this time, the turntable portion 13 of the hub member 9 corresponds to an interlocking member, and the casing 21 and the support member 22
a and 22b correspond to an adding means for applying such an adjusting force. In FIG. 1, reference numeral 24 denotes a motor board,
Reference numeral denotes an anti-vibration rubber interposed between the chassis 1 and the support members 22a and 22b, reference numeral 26 denotes a pickup for reading the disk D moving in a direction perpendicular to the plane of the drawing, and reference numeral 27 denotes a pickup driving motor.

Next, the principle of the present invention will be described with reference to FIGS.
This will be briefly described with reference to FIG. However, FIG. 2 shows a case where the moving path 16 has no inclination, and FIG. 3 shows a case where the moving path 16 has an inclination.

Now, as shown in FIGS. 2 and 3, for example, when there is a minute imbalance in the disk D or the like, the rotation of the motor is caused by the minute imbalance (in the direction of the arrow R in FIGS. 2 and 3). When the centrifugal force is generated along with the rotation of the bearing 5 and the rotation axis is deflected to cause rotational runout, the center position B of the bearing 5 (hereinafter referred to as the bearing center) B and the center of the rotating body shape S of the disk D And a centrifugal force F1 acts on the sphere 17 about the bearing center B.

The centrifugal force F1 is a component force F1 parallel to a straight line L connecting the center S of the rotating body and the center of the sphere 17.
The force is divided into a component force F1v in a direction orthogonal to p, and due to the presence of the component force F1v, the sphere 17 moves in the circumferential direction on the moving path 16 and further with the movement of the sphere 17, the disk D The overall center of gravity G composed of the sphere 17 moves.
FIG. 2 is a conceptual diagram showing the principle of operation of the present invention. Therefore, although only one sphere 17 is shown in FIG.
Are arranged on the circumference of the sphere 17, if the total center of gravity G, the bearing center B, and the center of the rotating body shape S completely coincide with each other and the component force F1v does not act on the sphere 17, Will stop. This is the principle of operation of the automatic adjustment mechanism.

By the way, in actuality, the frictional force F2 due to the contact with the wall of the moving path 16 acts on the sphere 17,
When the moving path 16 is not inclined and no external force acts on the spherical body 17 and the component force F1v is smaller than the maximum static frictional force, the component force F1v becomes equal to the frictional force F2, and the spherical body 17 stops at that position. Will be.

Accordingly, in the case of the motor 19 provided with the conventional balance correcting device 18 shown in FIG. 9, as described above, the spherical body 17 cannot move to the balance correction point accurately due to the frictional force F2. Is distributed within a certain range including, and stops at an unbalanced position.

On the other hand, as shown in FIG.
In the case where there is an inclination of 6, when a component of gravity acting on the spherical body 17 in a direction parallel to the inclined surface is defined as a gravity component Fm, the gravity component Fm is directed in a direction orthogonal to the component force Fmp parallel to the straight line L. And the component force Fm at this time.
v acts on the sphere 17 as an adjusting force, and the centrifugal force F1
Component F1v and the component force Fm of the gravitational component Fm, which is the adjusting force.
v is the maximum static friction force F applied to the balance body.
If it exceeds 3, the sphere 17 moves in the opposite direction to R in the figure, that is, in the counterclockwise direction. Further, the rotating body rotates and the sphere 1
When 7 is located to the left in the figure, the component force Fmv acts on the wall surface in the R direction, that is, in the clockwise direction. As described above, when the relationship between the sphere 17 and the wall surface is viewed as a center, the component force Fmv of the gravitational component Fm is an external vibration force acting on the sphere 17, so that the sphere 17 vibrates minutely near the balance position and balance. It is easy to move to the correction position.

In order to experimentally verify that the inclination of the moving path 16 facilitates the movement of the sphere 17 to the balance correction position, two spheres having a diameter of 3.5 mm are set on the moving path 16. With respect to the motor housed and installed on the test stand via a vibration isolating sponge, the start and stop of the motor were repeated 50 times and the variance of the angle formed between the center of both spheres 17 and the rotation center was examined. 4 and FIG. 5 show the results when the inclination angles of 0 ° and 60 ° are respectively.

4 and 5, when the motor is inclined, the angle between the center of the two spheres 17 and the rotation center falls within the range of approximately 160 ° to 180 ° without variation, and there is almost no dispersion. It can be seen that the reproducibility is good. In addition, it was also verified that the larger the inclination angle of the motor, the smaller the variation in the angle between the center of the two spheres 17 and the center of rotation becomes.

As described above, the combined force of the component force F1v of the centrifugal force F1 in the direction tangential to the wall of the moving furnace (see FIG. 3) and the component force Fmv of the gravitational component Fm (see FIG. 3) as the adjusting force is: If the adjusting force is applied so as to exceed the maximum static friction force F3 applied to the spherical body 17 (see FIG. 3), the balance body slightly vibrates near the balance position, and easily moves to the balance correction position.

Therefore, according to the above-described embodiment, the motor 19 on which the disk D with little unbalance is rotated by applying the adjusting force to the sphere 17 by inclining the moving path 16. However, the occurrence of imbalance due to the stop of the sphere 17 at an unbalanced position can be suppressed as much as possible, and the sphere 17 can move quickly in the moving path 16, thereby reliably correcting the minute imbalance. can do.

As another embodiment of the present invention, as shown in FIG. 6, the motor 19 is fixed in the housing 30 via the vibration isolating rubber 31, and the housing 30 housing the motor 19 in this way. The entire body may be held in an inclined state by the support member 32. In this case, it is needless to say that the same effect as in the above-described embodiment can be obtained. Thinner than in the case of

In each of the above-described embodiments, the balance correcting device is formed on the turntable portion 13 of the hub member 9 and the base portion of the yoke member 10 (see FIG. 9), which are components of the motor. Although the motor 19 integrally incorporated has been described as an example, as another embodiment, as shown in FIG. 7, an interlocking member 35 different from the motor component is interlocked with a rotating member such as the hub member 9. The interlocking member 35 forms a moving path composed of an annular space, and the moving path accommodates a sphere 36 as a balance body to form a unitized balance correction device 37. Only the balance corrector 37 may be tilted to apply an adjustment force based on gravity to the sphere 36. In this case, the same effect as in FIG. 1 can be obtained. However, in FIG. 7, the same reference numerals as those in FIG. 6 indicate the same or corresponding components.

Further, in each of the above embodiments, the moving path 1
Although the case where the adjusting force is applied to the spherical body 17 by inclining the spherical body 6 has been described, as shown in FIG. 8, the spherical body 17 is formed of a magnetic material, and is provided by a magnet 38 and the like disposed outside the moving path 16. Magnetic means for applying an adjusting force by applying a magnetic force that varies in the rotation direction to the sphere 17 may be used as the adjusting force applying means. In this case, the sphere 17 or the like can be used without tilting the interlocking member. An adjusting force can be added to the balance body, which is very effective, for example, when the interlocking member cannot be inclined due to the installation space.

Further, in each of the embodiments described above, the case where the balance body is the spheres 17 and 36 has been described. However, the balance body does not necessarily have to be a sphere, but may be another rolling body such as a barrel or a cone. Or a fluid or semi-liquid.

Further, in each of the embodiments described above, the case where the present invention is applied to the motor 19 in which the shaft 8 rotates is described. However, the present invention is also applicable to an inner rotor type motor and a motor in which the shaft is fixed. Of course, the present invention can also be applied to this.

The present invention can be applied not only to a motor as in each of the above-described embodiments but also to any rotating device which has a rotating member and can cause imbalance during rotation. It is possible.

Further, the present invention is not limited to the above-described embodiments, and various modifications other than those described above can be made without departing from the gist of the present invention.

[0055]

As described above, according to the first aspect of the present invention, when rotating a rotating device such as a motor on which a disk with a small unbalance is mounted, the balance body is stopped at an unbalanced position. Can minimize the occurrence of unbalance due to the motor, and the balance body can move quickly in the moving path, so that minute imbalance can be corrected reliably. It is possible to further stabilize the rotation of.

According to the second aspect of the present invention, by tilting the moving member by inclining the interlocking member, the component of gravity in the direction parallel to the inclined surface of the moving member is exerted on the balancer. Since it can be used as an adjusting force, the balance body can be finely vibrated near the balance position to facilitate the movement of the balance body to the balance correction position, and minute imbalance can be corrected reliably. Become.

According to the third aspect of the present invention, an adjusting force can be applied to the balance body without tilting the interlocking member. For example, the interlocking member is tilted due to the installation space. It is effective when you cannot.

According to the fourth aspect of the present invention, since the balance body is a rolling element, the friction when moving in the moving path is small, and the handling when accommodating in the moving path is easy. become.

According to the fifth aspect of the present invention, since an adjusting force is added by the adding means, it is possible to minimize the occurrence of unbalance caused by stopping the balance body at an unbalanced position, and to minimize the occurrence of unbalance. Can quickly move in the moving path, can surely correct a minute imbalance, and provide a rotating device such as a motor having a stable rotating performance.

According to the sixth aspect of the present invention, since the moving path is inclined by the inclination of the housing itself, an adjusting force can be easily added to the balance body, so that the balance body is balanced. It is possible to provide a rotating device such as a motor having a stable rotating performance, in which a minute vibration is generated in the vicinity of a position to facilitate movement of the balance body to a balance correction position, and a minute unbalance can be reliably corrected. Will be possible.

According to the seventh aspect of the invention, the adjusting member can be easily applied to the balance body by tilting the moving path by tilting the interlocking member in the housing.
A rotating device, such as a motor, having a stable rotation performance, in which the balance body is slightly vibrated near the balance position to facilitate the movement of the balance body to the balance correction position, and that the minute unbalance can be reliably corrected. Can be provided.

According to the eighth aspect of the present invention, since the moving member is inclined by inclining the interlocking member, an adjusting force can be easily applied to the balance body, so that the balance body is balanced. It is possible to provide a rotating device such as a motor having a stable rotating performance, in which a minute vibration is generated in the vicinity of a position to facilitate movement of the balance body to a balance correction position, and a minute unbalance can be reliably corrected. Will be possible.

According to the ninth aspect of the present invention, there is provided a rotating device such as a motor which can apply an adjusting force to the balance body without tilting the interlocking member and has a stable rotating performance. Can be provided.

According to the tenth aspect of the present invention,
Since the balance body is a rolling body, the friction when moving in the moving path is small, the handling when accommodating in the moving path is easy, and a rotating device such as a motor having stable rotating performance is provided. It becomes possible to do.

[Brief description of the drawings]

FIG. 1 is a front view showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is an operation explanatory diagram of one embodiment.

FIG. 3 is an operation explanatory diagram of one embodiment.

FIG. 4 is a diagram illustrating an operation of the embodiment.

FIG. 5 is an operation explanatory diagram of one embodiment.

FIG. 6 is a front view schematically showing a schematic configuration of another embodiment of the present invention.

FIG. 7 is a front view schematically showing a schematic configuration of another embodiment of the present invention.

FIG. 8 is a front view schematically showing a schematic configuration of still another embodiment of the present invention.

FIG. 9 is a cutaway front view of a conventional example.

[Explanation of symbols]

 2 Holding member (stationary member) 7 Stator (stationary member) 8 Shaft (rotating member) 9 Hub member (rotating member) 10 Yoke member (rotating member) 13 Turntable part (interlocking member) 17, 36 Sphere 18, 37 Balance correction Apparatus 19 Motor 21, 30 Housing (additional means) 22a, 22b, 32 Supporting member (additional means) 35 Interlocking member 38 Magnet (additional means)

Claims (10)

[Claims] An interlocking member that rotates in conjunction with a rotating member, a moving path formed of an annular space formed in the interlocking member, a balance body movably accommodated in the moving path, and the balance body. A compensating means for forcibly applying an adjusting force in the direction of the moving path to the moving path. 2. The balance according to claim 1, wherein said adding means comprises a member for adding said adjusting force based on gravity to said balance body by supporting said interlocking member in an inclined state. Correction device. 3. The balance correction device according to claim 1, wherein said adding means is means for adding said adjusting force by magnetic force to said balance body. 4. The balance correction device according to claim 1, wherein the balance body is made of a rolling element. 5. An interlocking member comprising a stationary member and a rotating member rotatably provided with respect to the stationary member, wherein the interlocking member rotates in conjunction with the rotating member, and an annular space formed in the interlocking member. And a balance device movably accommodated in the moving path, comprising a balance correcting device, wherein an adjusting force in the direction of the moving path is forcibly applied to the balance body. A rotating device comprising additional means for adding. 6. The adjustment means based on gravity, wherein the adding means supports the stationary member, the rotating member, and the interlocking member therein, and supports the housing in an inclined state. The rotating device according to claim 5, wherein the rotating device is configured by a member added to the balance body. 7. The apparatus according to claim 7, wherein the adding unit is configured to accommodate the stationary member, the rotating member, and the interlocking member therein, and to support each of the members in a tilted state in the housing, so as to be based on gravity. The rotating device according to claim 5, wherein the rotating device is configured by a member that applies an adjusting force to the balance body. 8. The rotating device according to claim 5, wherein said adding means comprises a member for supporting only said interlocking member in an inclined state and adding said adjusting force based on gravity to said balance body. apparatus. 9. The rotating device according to claim 5, wherein said adding means is means for adding said adjusting force by magnetic force to said balance body. 10. The rotating device according to claim 5, wherein the balance body is made of a rolling element.