JP2017015200A - Rotary device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary device in which a driving shaft for rotating a rotary member and the rotary member are connected in a superior manner at its high speed rotation.SOLUTION: One preferred embodiment of a rotary device 1 comprises a driving shaft 2 for being rotationally driven, a cylindrical rotary main body 11 and a connecting structure 4 for connecting the driving shaft 2 with the rotary main body 11. The connecting structure 4 is constituted by a buffer part 4A and a connecting part 4B. The buffer part 4A has a cylindrical buffer member 14 and an outer peripheral surface of the buffer member 14 and an inner peripheral surface of the rotary main body 11 are fixed at two points. The connecting part 4B has a disc-like member 16, an end part of the outer peripheral side of the disc-like member 16 is fixed to an inner peripheral surface of the buffer member 14 and the inner peripheral side of the disc-like member 16 is fixed to the driving shaft 2. When the rotary main body 11 is rotated at high speed, the buffer member 14 is flexed and a difference between a deformation amount of the rotary main body 11 and a deformation amount of the disc-like member 16 is absorbed.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a rotating device including a rotating body that is connected to a drive shaft and rotates.

The rotating kinetic energy is stored in the rotating object (rotating body). For example, it is assumed that a columnar rotating body 100 as shown in FIG. 1 rotates at a rotation speed v [number of rotations / s] with a z axis perpendicular to a plane as a rotation axis. If the angular velocity of the rotating body 100 is ω [rad / s], the kinetic energy E is expressed by the equation (1).
E = 1/2 × Ip × ω ² (1)

Here, Ip is the moment of inertia [kg · m ² ] around the z-axis perpendicular to the plane of the rotator 100, and is called the polar moment of inertia. As the mass m [kg] at an arbitrary mass mass point of the rotator 100 and the distance from the center of rotation (z axis) to the mass mass point (radius r in the example of FIG. 3) increase, the polar moment of inertia Ip also increases. Therefore, the larger the values of the mass m at the mass point, the distance r from the center of rotation (z axis) to the mass point, and the angular velocity ω (rotational speed v), the greater the kinetic energy E of the rotating body 100.

  Using this physical phenomenon, electric power is converted into kinetic energy of a rotating body (for example, flywheel) and stored, and the kinetic energy stored in the rotating body is converted into electrical energy and extracted when necessary. Development is underway.

  In general, the rotating body is often a cylinder for weight reduction, and a drive shaft is passed through the center of the hollow portion. The cylindrical rotating body is connected to the drive shaft via a disk-like connecting portion. For example, Patent Document 1 discloses a configuration in which a cylindrical flywheel is connected to a rotating shaft via a disk-like connecting portion.

JP 2003-219581 A (see FIG. 4)

By the way, the centrifugal force F acting on the mass mass point of the rotating body 100 is expressed by the equation (2), the mass m at the mass mass point of the rotating body 100, the distance r from the center of rotation to the mass mass point, and the angular velocity ω. Increases, the centrifugal force F acting on the mass mass point of the rotating body 100 also increases.
F = m × r × ω ² (2)

  The larger the distance r from the center of rotation to the mass mass point, the greater the centrifugal force F acts on the mass mass point. Therefore, each part (each mass mass point) of the rotator 100 extends and deforms in the centrifugal direction according to the distance r from the center of rotation. In the vicinity of the drive shaft, the centrifugal force acting is small and the amount of deformation in the centrifugal direction is small because it is close to the center of rotation, but in the portion far from the center of rotation, the acting centrifugal force is large and the amount of deformation in the centrifugal direction is large. Therefore, it is important how to connect the drive shaft (part that is difficult to deform) and the rotating body (part that is easily deformed) or how to rotate the rotating body while suppressing deformation.

  If this countermeasure is insufficient, the rotating body is greatly deformed, so that the connecting portion that connects the rotating body and the drive shaft is damaged, or the center of rotation of the drive shaft is shifted and the drive shaft vibrates. However, Patent Document 1 does not mention a method for solving such a problem.

  The present invention has been made in consideration of the above-described situation, and provides a rotating device that satisfactorily connects a rotating shaft to a driving shaft that rotates the rotating body at high speed rotation.

  An intermediate device according to an aspect of the present invention is fixed to a driving shaft portion that is rotationally driven, a cylindrical rotating body that is rotatable about a rotating shaft of the driving shaft, and an inner peripheral surface of the rotating body. An upper annular member, and a lower annular member fixed at a position lower than the upper annular member on the inner peripheral surface of the rotating body main body. A flexible cylinder disposed inside the rotating body, wherein an upper annular member is fixed to an upper portion of an outer peripheral surface of the cylinder, and a lower annular member is disposed to a lower portion of the outer peripheral surface Is provided with a fixed buffer member. The disk-shaped member having the same central axis as the rotation axis of the drive shaft portion is fixed in a state where the drive shaft portion is passed through on the inner peripheral side of the disk-shaped member. An end portion on the outer peripheral side of the plate-like member is fixed to the inner peripheral surface of the buffer member, and includes a connecting portion that rotates around the drive shaft portion as a rotation shaft as the drive shaft portion rotates. Further, an annular reinforcing member fixed to the outer peripheral surface of the buffer member at a position facing the outer peripheral end of the disk-shaped member fixed to the inner peripheral surface of the buffer member is provided.

According to at least one aspect of the present invention, when the rotating body is rotating at a high speed, the buffer member fixed to the rotating body is bent, and the difference between the deformation amount of the rotating body and the deformation amount of the disk-shaped member is Absorbed. Therefore, it is possible to satisfactorily connect the drive shaft portion and the rotating body main body.
Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is explanatory drawing of a rotary body. It is an appearance perspective view showing the whole rotation device composition concerning one embodiment of the present invention. It is an arrow line view which follows the XX 'line | wire of FIG. It is a figure which shows the simulation result (whole) of the deformation amount of each part of a rotation apparatus. It is a figure which shows the simulation result (only a buffer member) of the deformation amount of each part of a rotation apparatus. It is a figure which shows the simulation result (a buffer member, a reinforcement member) of the deformation amount of each part of a rotation apparatus. It is a figure which shows the simulation result (a buffer member, a reinforcement member, a connection part) of the deformation amount of each part of a rotation apparatus. It is a figure which shows the simulation result (a buffer member, a reinforcement member, a connection part, an upper ring member, and a lower ring member) of the deformation amount of each part of a rotating device.

Hereinafter, an example of an embodiment for carrying out the present invention will be described with reference to the accompanying drawings.
In addition, in each figure, about the component which has the substantially same function or structure, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

<1. One Embodiment>
[Configuration of intermediate device]
First, the configuration of a rotating device according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 2 is an external perspective view showing the overall configuration of the rotating device according to the embodiment of the present invention. In FIG. 2, for convenience of explanation, a part of the cross section is shown.
FIG. 3 is an arrow view along the line XX ′ in FIG. 2. In FIG. 3, the rotation axis of the drive shaft portion 2 and the axis perpendicular to the upper surface and the lower surface of the rotator main body 11 is taken as the z axis. In FIG. 3, the drive shaft portion 2 is not shown in cross section.

  The rotating device 1 includes a drive shaft portion 2 that is rotationally driven, a cylindrical rotating body main body 11, and a connection structure 4 that connects the driving shaft portion 2 and the rotating body main body 11. The connection structure 4 includes a buffer part 4A and a connection part 4B. 4 A of buffer parts suppress the deformation | transformation of the centrifugal direction of the connection part 4B by rotation of the rotary body main body 11. As shown in FIG.

  The drive shaft portion 2 includes a substantially cylindrical main body portion 2a extending in the direction of the z-axis that is a rotation shaft, a drive shaft 2b provided on the upper and lower sides of the main body portion 2a, and an upper portion of the main body portion 2a. The provided collar part 2c is provided.

  The drive shaft 2b is provided on the upper and lower planes of the main body 2a and has a diameter smaller than that of the main body 2a. In the example of FIG. 3, the diameter of the drive shaft 2b is smaller than that of the main body 2a, but it may be the same diameter. The tip end side of one of the drive shafts 2b is connected to a drive shaft (not shown) of an electric motor (motor) or a generator. When the rotational driving force of the electric motor is transmitted to the rotating body main body 11 via the connection structure 4, the rotating body main body 11 rotates.

  The collar part 2c is the upper end of the cylindrical surface of the main body part 2a, and is provided in the peripheral part of the cylindrical surface. A plurality of screw holes (female screws) to be screwed with the male screw 42 are formed at predetermined positions of the collar portion 2c. In the example of FIG. 2, eight screw holes are formed at positions (45 ° intervals) near the peripheral end of the collar portion 2 c and equidistant from each other. The main body 2a, the drive shaft 2b, and the collar 2c are integrally formed. In FIG. 3, the collar portion 2c is provided at the upper end of the cylindrical surface of the main body portion 2a, but may be provided at the lower end of the cylindrical surface or both the upper and lower ends of the cylindrical surface. When the collar portion 2c is provided at both the upper end and the lower end of the cylindrical surface, the collar portion 2c is more stably fixed to the upper support member 21 of the connecting portion 4B.

  The rotating body 11 is a cylindrical object that has the same central axis as the rotational axis (z-axis) of the drive shaft portion 2 and can rotate around the rotational axis. For example, the rotating body 11 is made of a material that has high rigidity and is difficult to be deformed even at high speed. As such a material having high rigidity, for example, there is a carbon fiber reinforced plastic (CFRP). The carbon fiber reinforced plastic is a composite material using carbon fiber as a reinforcing material and thermosetting resin or thermoplastic resin as a matrix (binding material). In particular, the latter is also referred to as CFRTP. However, even if such a material is used for the rotator main body 11, the distance from the rotating shaft is far greater than that of other members and the weight is large. . In the following description, the carbon fiber reinforced plastic is expressed as CFRP.

  As an example, a CFRP layer is used to create an annular CFRP layer whose fiber orientation is thin in the circumferential direction, and this annular CFRP layer is laminated in the direction of the axis of rotation to form a cylindrical rotating body. A main body 11 is created.

  4 A of buffer parts of the connection structure 4 are provided in the internal peripheral surface of the rotary body main body 11. As shown in FIG. The buffer portion 4A includes an upper ring member 13a, a lower ring member 13b, a buffer member 14, and a reinforcing member 18.

  As shown in FIG. 3, two annular members, an upper annular member 13 a and a lower annular member 13 b, are provided on the inner peripheral surface of the rotating body main body 11. The upper annular member 13a has the same central axis as the rotation shaft of the drive shaft portion 2, and rotates the drive shaft portion 2 at the upper part of the inner peripheral surface of the rotating body 11 (the upper end of the inner peripheral surface in FIG. 3). It is fixed so as to be the same central axis as the axis. Similarly, the lower annular member 13b is located on the inner peripheral surface of the rotating body 11 at a position lower than the upper annular member 13a (the lower end of the inner peripheral surface in FIG. 3). It is fixed so as to have the same central axis. For example, the upper ring member 13 a and the lower ring member 13 b are fixed to the inner peripheral surface of the rotating body 11 using an arbitrary adhesive. And the outer peripheral surface of the buffer member 14 is fixed to the opposite side to the internal peripheral surface of the rotary body 11 in the upper ring member 13a and the lower ring member 13b.

  The upper ring member 13a and the lower ring member 13b can be configured using, for example, glass fiber reinforced plastic (GFRP). The glass fiber reinforced plastic is a composite material using glass fiber as a reinforcing material and a thermosetting resin or a thermoplastic resin as a matrix. In the following description, the glass fiber reinforced plastic is expressed as GFRP.

  In the case where there is one connection structure 4 for the rotating body main body 11, the upper ring member 13a is arranged on the upper part of the inner peripheral surface of the rotating body main body 11 (from the center position C between the upper surface and the lower surface to the upper surface in the buffer portion 4A. The lower annular member 13b is preferably fixed to the lower part of the inner peripheral surface of the rotating body 11 (the part from the center position C to the lower surface of the upper surface and the lower surface). . Furthermore, the upper annular member 13a is fixed to the upper end of the inner peripheral surface of the rotating body main body 11, and the lower annular member 13b is fixed to the lower end of the inner peripheral surface of the rotating body main body 11. desirable. With such a configuration, the balance of the fixing positions of the upper annular member 13a and the lower annular member 13b with respect to the inner peripheral surface of the rotating body main body 11 is improved, and the buffering function of the buffer unit 4A is optimized. Is optimized.

  The buffer member 14 is a cylinder arranged to have the same central axis as the rotational axis of the drive shaft portion 2 on the inner side (centric direction) of the inner peripheral surface of the rotating body main body 11. The buffer member 14 has an upper annular member 13a fixed to the upper part of the outer peripheral surface of the cylinder, and a lower annular member 13b fixed to the lower part of the outer peripheral surface. For example, the upper annular member 13 a and the lower annular member 13 b are fixed to the outer peripheral surface of the buffer member 14 using an arbitrary adhesive. Thus, the outer peripheral surface of the buffer member 14 and the inner peripheral surface of the rotating body main body 11 are fixed at two points.

  Further, the connecting portion 4 </ b> B (disk-shaped member 16) is fixed to the inner peripheral surface of the buffer member 14. The cylinder of the buffer member 14 is thin (the difference between the outer diameter and the inner diameter is small) and is made of a material having flexibility and resilience in the centrifugal direction. When the intermediate device (rotating body main body 11) is rotating, the buffer member 14 is bent by the centrifugal force acting on the rotating body main body 11 (see FIG. 4), and the intermediate device (rotating body main body 11) is stopped. Sometimes, the buffer member 14 returns to its original shape.

  As shown in FIG. 3, the upper annular member 13a is fixed to the upper end of the outer peripheral surface of the buffer member 14 or the vicinity thereof, and the lower annular member 13b is fixed to the lower end of the outer peripheral surface or the vicinity thereof. Is desirable. By comprising in this way, the distance between the upper ring member 13a and the lower ring member 13b becomes long, and the bending of the buffer member 14 can be utilized to the maximum. The buffer member 14 can be configured using, for example, GFRP.

  The reinforcing member 18 is a circle fixed to the outer peripheral surface of the buffer member 14 at a position facing the outer peripheral side end of the disk-shaped member 16 of the connecting portion 4B fixed to the inner peripheral surface of the buffer member 14. An annular member. For example, the reinforcing member 18 is fixed to a predetermined position on the outer peripheral surface of the buffer member 14 using an adhesive. In this way, the reinforcing member 18 is fixed to the end portion on the outer peripheral side of the disk-shaped member 16 of the connecting portion 4B with the buffer member 14 interposed therebetween, so that the disk-shaped member 16 and the buffer member 14 are fixed. Rotational driving force can be transmitted between them. Further, the expansion of the rotating buffer member 14 in the centrifugal direction is restricted by the reinforcing member 18, and the fit between the buffer member 14 and the disk-like member 16 is ensured. Furthermore, it is possible to prevent the buffer member 14 from being detached from the disk-shaped member 16 when the buffer member 14 is bent by the rotation of the rotating body 11.

  For the purpose of regulating the expansion (deformation) of the disc-like member 16 in the centrifugal direction, the reinforcing member 18 is desirably made of a material having higher rigidity than the disc-like member 16. The reinforcing member 18 is configured using, for example, high-rigidity CFRP, and at least the reinforcing member 18 has higher rigidity than the buffer member 14. Note that the rigidity of an object composed of fiber reinforced plastics such as CFRP and GFRP varies depending on the direction of the composed fiber. In general, an object in which CFRP and GFRP are wound in the circumferential direction has higher rigidity than an object whose fiber direction is other than the circumferential direction. In addition, the height of the annular shape of the reinforcing member 18 (the length in the z-axis direction) is desirably the same as or higher than the height of the disk-shaped member 16 in order to stably achieve the purpose. The end on the outer peripheral side of the reinforcing member 18 has a shape that does not contact the inner peripheral surface of the rotating body 11 when not rotating.

The connecting part 4 </ b> B is composed of a disk-like member 16 and a support part 20.
The disc-like member 16 is a member having a disc-like shape having a through-hole through which the main body portion 2 a of the drive shaft portion 2 passes and having the same central axis as the rotation axis of the drive shaft portion 2. The main body 2a of the drive shaft 2 is fixed on the inner peripheral side of the disc-shaped member 16 and the outer end of the disc-shaped member 16 is fixed to the inner peripheral surface of the buffer member 14. Has been. The disc-like member 16 rotates around the drive shaft portion 2 as a rotation axis as the drive shaft portion 2 rotates. The disk-shaped member 16 can be configured using, for example, high-rigidity CFRP.

  The outer peripheral end of the disk-shaped member 16 is fixed to a position corresponding to the space between the upper annular member 13a and the lower annular member 13b on the inner circumferential surface of the buffer member 14. For example, the disk-shaped member 16 is fixed to a predetermined position on the inner peripheral surface of the buffer member 14 using an adhesive. Furthermore, the outer peripheral end of the disk-shaped member 16 is fixed to a position corresponding to an equal distance (center) from the upper annular member 13a and the lower annular member 13b on the inner circumferential surface of the buffer member 14. It is more desirable. With this configuration, the positional relationship between the upper annular member 13a, the lower annular member 13b, and the disk-like member 16 with respect to the inner peripheral surface of the rotating body 11 is improved, and the buffering portion 4A is buffered. Function is optimized. In addition, when there is one connection structure 4 for the rotating body main body 11, the position of the disk-shaped member 16 in the rotation axis direction is a position corresponding to the center position C of the inner peripheral surface of the rotating body main body 11. .

  A protruding edge 17a that protrudes perpendicularly from the upper surface is formed in the circumferential direction at an end portion on the inner peripheral side of the upper surface of the disk-shaped member 16 or in the vicinity thereof. Similarly, a protruding edge portion 17b that protrudes perpendicularly from the lower surface is formed in the circumferential direction at the inner peripheral end portion of the lower surface of the disk-shaped member 16 or in the vicinity thereof. The projecting edge portions 17 a and 17 b of the disc-like member 16 are fitted in locking grooves 24 and 34 formed in the circumferential direction of the support portion 20.

The support unit 20 includes a pair of an upper support member 21 and a lower support member 31.
The upper support member 21 and the lower support member 31 are formed with a through hole through which the main body portion 2 a of the drive shaft portion 2 is passed, and have a disk shape having the same center axis as the rotation shaft of the drive shaft portion 2. This is a member having the shape of The lower surface of the upper support member 21 and the upper surface of the lower support member 31 are in surface contact. A stepped portion 23 having a step in the radial direction is formed in the circumferential direction on the outer peripheral side of the lower surface of the upper support member 21, and a stepped portion 33 having a step in the radial direction is formed on the outer peripheral side of the upper surface of the lower support member 31. It is formed in the circumferential direction. Further, a locking groove 24 is formed in a circumferential direction on a surface parallel to the lower surface of the step portion 23 of the upper support member 21, and a circumferential direction is formed on a surface parallel to the upper surface of the step portion 33 of the lower support member 31. A locking groove 34 is formed in the upper surface.

  The projecting edge portions 17a and 17b of the disc-like member 16 are fitted in the locking groove 24 on the lower surface of the upper support member 21 and the locking groove 34 on the upper surface of the lower support member 31, respectively. The upper support member 21 and the lower support member 31 are fixed in a state where the stepped portion 23 of the support member 21 and the stepped portion 33 of the lower support member 31 sandwich the upper surface and the lower surface of the disk-shaped member 16, respectively. As described above, the support portion 20 is locked by the upper support member 21 and the lower support member 31 so that the disc-like member 16 does not separate in the centrifugal direction.

  A plurality of (8 in the example of FIG. 2) penetrating screw holes (female screws) are formed at corresponding positions of the upper support member 21 and the lower support member 31, respectively. The upper support member 21 and the lower support member 31 are fixed in an opposed state by eight male screws 36 inserted from the lower surface 32 side of the lower support member 31. Further, the upper support member 21 and the collar portion 2c of the drive shaft portion 2 are fixed in a state where the upper surface of the upper support member 21 and the lower surface of the collar portion 2c are in contact with each other by the male screw 42 inserted from the collar portion 2c. Thereby, the support part 20 (connecting part 4B) is fixed to the drive shaft part 2. In addition, the structure of the support part 20 mentioned above is an example. The disk-like member 16 can be supported and fixed to the drive shaft portion 2 by various other configurations and methods.

[simulation result]
Next, the simulation result of the deformation amount of each part of the rotating device 1 will be described with reference to FIGS. In FIGS. 4 to 8, as the amount of deformation (change in the distance from the center of rotation (z-axis in FIG. 3)) increases, the density is displayed (grayscale display).
FIG. 4 is a diagram showing a simulation result (whole) of the deformation amount of each part of the rotating device 1.
FIG. 5 is a diagram illustrating a simulation result (only the buffer member 14) of the deformation amount of each part of the rotating device 1.
FIG. 6 is a diagram illustrating simulation results (buffer member 14 and reinforcing member 18) of the deformation amount of each part of the rotating device 1.
FIG. 7 is a diagram illustrating simulation results (the buffer member 14, the reinforcing member 18, and the disk-shaped member 16) of the deformation amount of each part of the rotating device 1.
FIG. 8 is a diagram showing a simulation result of the deformation amount of each part of the rotating device 1 (the buffer member 14, the reinforcing member 18, the disk-like member 16, the upper annular member 13a, and the lower annular member 13b).

  The simulation according to the present embodiment was performed by setting conditions such as the size, weight, angular velocity, and the like of each part including the rotating body 11 of the rotating device 1.

  As shown in FIG. 5, when only the buffer member 14 is rotated at a predetermined rotational speed, there is no significant difference in the deformation amount in the centrifugal direction because the buffer member 14 is thin.

  In FIG. 6, a reinforcing member 18 is added to the simulation conditions with respect to FIG. 5. As shown in FIG. 6, while the reinforcement member 18 restricts the extension of the buffer member 14 in the centrifugal direction, the upper end portion and the lower end portion of the buffer member 14 are bent by a centrifugal force and are deformed. However, the amount of deformation of the portion corresponding to the reinforcing member 18 of the buffer member 14 is small. That is, the distance from the center of rotation (z-axis in FIG. 3) to the reinforcing member 18 hardly changes.

  In FIG. 7, the disk-like member 16 of the connecting portion 4 </ b> B is added to the simulation conditions with respect to FIG. 6, but since the reinforcing member 18 is already reflected in the simulation in FIG. 6, compared with FIG. 6. There is no significant difference in deformation.

  In FIG. 8, an upper ring member 13a and a lower ring member 13b are added to the simulation conditions with respect to FIG. The upper ring member 13a and the lower ring member 13b, and further, the amount of deformation at the upper end and the lower end of the buffer member 14 to which these ring members are fixed are large.

  In FIG. 4, the rotating body 11 is added to the simulation conditions with respect to FIG. 8. The amount of deformation of the rotating body 11 increases as the distance from the center of rotation increases, but the entire rotating body 11 is deformed due to its weight. Further, the upper annular member 13a, the lower annular member 13b, and the upper end portion and the lower end portion of the buffer member 14 have a large deformation amount. On the other hand, the portions corresponding to the disk-shaped member 16, the reinforcing member 18, and the reinforcing member 18 of the buffer member 14 are displayed with low density, and the amount of deformation is small. From this, when the buffer member 14 is bent, the difference between the large deformation amount generated in the rotating body 11 and the small deformation amount of the disk-shaped member 16 is absorbed, and the disk-shaped member 16 (connecting portion 4B). It can be seen that the rotating body 11 is connected well.

  In this simulation, the result was that the amount of deformation of the rotating body 11 was about 7 mm, the amount of deformation of the disc-like member 16 was about 1 mm, and the amount of deformation of the main body 2a of the drive shaft 2 was almost 0 mm.

  According to the present embodiment configured as described above, when the rotating body main body 11 rotates at a high speed, the buffer member 14 bends, and the difference between the deformation amount of the rotating body main body 11 and the deformation amount of the disk-shaped member 16. Is absorbed. Therefore, it is possible to satisfactorily connect the drive shaft portion 2 and the rotating body main body 11.

<2. Other>
In the embodiment described above, the case where there is one connection structure 4 with respect to the rotating body main body 11 has been described. However, when the height of the rotating body main body is high, a plurality of connection structures 4 are arranged on the inner peripheral side of the rotating body main body. May be arranged in the direction of the rotation axis. The plurality of connecting structures 4 arranged at this time are line-symmetric with respect to a horizontal line passing through the center position C of the rotating body. Thus, when the height of a rotary body main body is high, by providing the some connection structure 4, the rotation operation | movement of a rotary body main body and the deformation | transformation of the centrifugal direction are stabilized.

  In the above-described embodiment, the shape of the disk-shaped member 16 constituting the connecting portion 4B is a disk shape in which a through hole is formed, but is not limited to this example. For example, in the above-described embodiment, the entire area (360 degrees) of the end portion on the outer peripheral side of the disk-shaped member 16 is fixed to the inner peripheral surface of the buffer member 14. These end portions may be fixed to the inner peripheral surface of the buffer member 14 at equal intervals in the circumferential direction (for example, eight locations at 45 ° intervals).

  In the above-described embodiment, the rotating body main body, the upper annular member, and the lower annular member may be integrated.

  Further, the rotating body main body according to the above-described embodiment is a cylinder, but the shape of the rotating body main body does not have to be a complete cylinder, and the rotating body main body is composed of an object divided into a plurality of parts in the circumferential direction. Also good.

  In addition, the rotating device according to the above-described embodiment includes a rotating shaft portion, a rotating body main body, and a power storage device (flywheel power storage device) that accumulates and extracts rotational kinetic energy with respect to the rotating body main body. The present invention can be applied to various devices having a connecting structure for connecting.

  Furthermore, the present invention is not limited to the above-described embodiments, and various other application examples and modifications can be taken without departing from the gist of the present invention described in the claims. is there.

  For example, the above-described exemplary embodiments are detailed and specific descriptions of the configuration of the apparatus and the system in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described above. . Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment. In addition, the configuration of another embodiment can be added to the configuration of a certain embodiment. Moreover, it is also possible to add, delete, and replace other configurations for a part of the configuration of each exemplary embodiment.

1 ... rotating device,
DESCRIPTION OF SYMBOLS 2 ... Drive shaft part, 2a ... Main body part, 2b ... Drive shaft, 2c ... Collar part, 3 ... Rotated body, 4 ... Connection structure, 4A ... Buffer part, 4B ... Connection part, 11 ... Rotating body (Rotary body main body ), 13a: Upper ring member, 13b: Lower ring member, 14: Buffer member, 16: Disk-like member, 17a, 17b ... Projection edge portion, 18 ... Reinforcement member, 20 ... Support portion, 21 ... Upper side Support member, 22 ... upper surface, 23 ... stepped portion, 24 ... locking groove, 31 ... lower support member, 32 ... lower surface, 33 ... stepped portion, 34 ... locking groove, 36, 42 ... male screw

Claims (8)

A drive shaft for rotational driving;
A cylindrical rotating body main body rotatable around a rotation axis of the drive shaft portion;
An upper annular member fixed to the inner peripheral surface of the rotating body,
A lower annular member fixed at a position lower than the upper annular member of the inner peripheral surface of the rotating body; and
A flexible cylinder disposed inside the rotary body, wherein the upper annular member is fixed to an upper portion of an outer peripheral surface of the cylinder, and the lower annular ring is disposed to a lower portion of the outer peripheral surface. A buffer member to which the member is fixed;
A disk-shaped member having the same central axis as the rotational axis of the drive shaft portion, and the drive shaft portion is fixed in a state where the drive shaft portion is passed through on the inner peripheral side of the disk-shaped member; An end portion on the outer peripheral side of the plate-like member is fixed to the inner peripheral surface of the buffer member, and a connecting portion that rotates around the drive shaft portion as a rotation shaft along with the rotation of the drive shaft portion,
An annular reinforcing member fixed at a position facing an outer peripheral end of the disk-shaped member fixed to the inner peripheral surface of the buffer member with respect to the outer peripheral surface of the buffer member. apparatus. The upper ring member is fixed to the upper part of the inner peripheral surface of the rotating body main body, and the lower ring member is fixed to the lower part of the inner peripheral surface of the rotating body main body. Rotating device. The upper ring member is fixed to the upper end of the inner peripheral surface of the rotating body main body, and the lower ring member is fixed to the lower end of the inner peripheral surface of the rotating body main body. Rotating device. The rotating device according to any one of claims 1 to 3, wherein the upper annular member is fixed to an upper end of an outer peripheral surface of the buffer member, and the lower annular member is fixed to a lower end of the outer peripheral surface. An end portion on an outer peripheral side of the disk-shaped member included in the connecting portion is fixed to a position corresponding to an interval between the upper annular member and the lower annular member on an inner peripheral surface of the buffer member. Item 5. The rotating device according to any one of Items 1 to 4. The end on the outer peripheral side of the disk-shaped member provided in the connecting portion is fixed to a position corresponding to the center of the upper annular member and the lower annular member on the inner peripheral surface of the buffer member. Item 6. The rotating device according to Item 5. The rotation device according to any one of claims 1 to 6, wherein the coupling portion further includes a support portion that is fixed in a state where the drive shaft portion is inserted and supports an inner peripheral side of the disk-shaped member. . The rotating device according to claim 1, wherein at least the reinforcing member has higher rigidity than the buffer member.