TWI546469B - Flywheel - Google Patents

Description

Flywheel device

The present invention relates to a flywheel device, and more particularly to a flywheel device having an unequal weight configuration in a radial direction.

Please refer to FIG. 1 , which is a conventional flywheel device 9 . The flywheel device 9 includes a wheel 91 . The wheel 91 defines a shaft hole 92 for coupling with a rotating shaft (not shown). ). The flywheel device 9 can be rotated by the rotating shaft, wherein the weight distribution of the wheel 91 in the radial direction of the rotating shaft is equal, and when the wheel 91 rotates, a tendency to rotate around the rotating shaft is generated. This allows the flywheel device 9 to provide a torque.

However, due to the tolerance of the process, the weight distribution of the wheel 91 in the radial direction of the rotating shaft cannot be completely equal. Once the position of the center of gravity of the wheel 91 has an error, it deviates from the center of the shaft hole 92, and the wheel 91 is in the wheel 91. When the rotation is performed, an eccentric action is caused, so that the wheel 91 is unbalancedly rotated, and it is easy to derive axial pinching or vibration, and the torque that the flywheel device 9 can provide is reduced. In other words, the flywheel device 9 cannot provide a constant and stable torque, causing the rotating shaft to consume higher power to maintain the rotational speed of the flywheel device 9.

Furthermore, the wheel 91 is a solid disc, so that the axial section of the wheel 91 will be rectangular, that is, the effective cross-sectional area of the axial section of the wheel 91 is large, so that it has a large The drag coefficient thus hinders the rotation of the wheel 91. Accordingly, the torque output of the flywheel device 9 may be further reduced by the fact that the wheel 91 has a large drag coefficient.

In view of this, the conventional flywheel device 9 does have a need for improvement.

The invention provides a flywheel device, which is divided into eight blocks in a circumferential direction by a wheel, and a groove is arranged in each block, so that each block has a different weight to ensure that the wheel can Balanced rotation.

The flywheel device of the present invention comprises: a wheel disc having a shaft joint at the center thereof, and the wheel disc is divided into a first block, an eighth block, a third block, and a first a four block, a ninth block, a second block, a seventh block and a sixth block, each of the blocks is provided with a groove, and the volume of the groove of each block is not Equally, the weight ratio of the first block, the second block, the third block, the fourth block, the sixth block, the seventh block, the eighth block, and the ninth block is 1:2 :3:4:6:7:8:9.

a flywheel device as described above, wherein the first block, the eighth block, the third block, the fourth block, the ninth block, the second block, the seventh block, and the sixth block are The wheel is divided into eight quarters in a radial arrangement along the circumferential direction.

A flywheel device as described above, wherein the disk is equal in weight to the sum of the weights of any two of the blocks in the radial direction of the shaft portion.

The flywheel device as described above, wherein the first block, the third block, the ninth block, and the seventh block are equal in weight to the blocks on the respective two sides thereof.

The flywheel device as described above, wherein the wheel has opposite surfaces in an axial direction of the shaft portion, the grooves of each block are blind grooves, and the grooves of each block are simultaneously Set on the two surfaces.

The flywheel device as described above, wherein the wheel disc is further divided into an outer ring portion and a central portion in a radial direction of the shaft joint portion, the central portion is connected to the shaft joint portion, and the outer ring portion is surrounded The central portion and the recess of each of the blocks are disposed at the central portion.

The flywheel device as described above, further comprising an auxiliary rotating module, the auxiliary The auxiliary rotation module comprises a base, an adjusting member and a magnetic member, the adjusting member is disposed on the base, the magnetic member is coupled to the adjusting member, the magnetic member has a magnetic surface away from the base, the adjusting member The angle between the magnetic surface and the base can be slightly adjusted, and each of the outer circumferences is respectively coupled with a magnet, each of the magnets having a magnetic surface away from one of the disks, and the magnetic surface of each of the magnets The magnetic faces of the magnetic members have the same polarity.

a flywheel device as described above, wherein, when the magnetic member is not subjected to an external force, the magnetic surface of the magnetic member faces the outer circumference of the wheel, and when one of the magnets rotates close to the magnetic member, the magnetic member is slightly oriented Deviated in a direction opposite to the magnet such that an angle between the magnetic face of the magnetic member and the base is formed.

According to the foregoing structure, the flywheel device of the present invention can provide grooves having unequal volumes in each of the blocks, so that each block has a different weight, so that each block of the wheel can be rotated. The moment of inertia is different. At the same time, by properly arranging the blocks, the wheel 1 can be rotated and balanced by the rotating shaft, so that the wheel 1 can be balancedly rotated without deriving axial deflection. In the case of vibration or the like, it has the effect of improving the torque output of the flywheel device.

〔this invention〕

1‧‧‧ Roulette

10‧‧‧Axis joint

11‧‧‧First block

111‧‧‧ Groove

12‧‧‧Second block

121‧‧‧ Groove

13‧‧‧ Third block

131‧‧‧ Groove

14‧‧‧Four Block

141‧‧‧ Groove

16‧‧‧Sixth Block

161‧‧‧ Groove

17‧‧‧ seventh block

171‧‧‧ Groove

18‧‧‧ eighth block

181‧‧‧ Groove

19‧‧‧ ninth block

191‧‧‧ Groove

1a‧‧‧ surface

1b‧‧‧ surface

1c‧‧‧Outer Rings

1d‧‧‧Central Department

2‧‧‧Auxiliary rotation module

21‧‧‧Base

22‧‧‧Adjustment

23‧‧‧Magnetic parts

231‧‧‧ Magnetic surface

3‧‧‧ Magnet

31‧‧‧ Magnetic surface

X‧‧‧ axial direction

W‧‧‧ weight

R‧‧‧ radius of rotation

Θ‧‧‧ angle

[study]

9‧‧‧Flywheel device

91‧‧‧ Roulette

92‧‧‧Axis hole

R’‧‧‧ radius of rotation

Figure 1: Appearance of a conventional flywheel device.

Fig. 2 is a schematic view showing the appearance of a first embodiment of the present invention.

Fig. 3 is a cross-sectional view showing the first embodiment of the present invention taken along line I-I of Fig. 2.

Figure 4 is a schematic view showing the appearance of a second embodiment of the present invention.

Fig. 5 is a schematic view showing the appearance of a third embodiment of the present invention.

Figure 6 is a schematic view showing the use of the third embodiment of the present invention.

Fig. 7 is a view showing the use of the eighth block of the roulette of the third embodiment of the present invention in proximity to the magnetic member.

Fig. 8 is a view showing the use of the position where the eighth block of the wheel disc of the third embodiment of the present invention is rotated to the position of the auxiliary rotating module.

Fig. 9 is a view showing the use of the eighth block of the wheel disc according to the third embodiment of the present invention away from the auxiliary rotary mold.

The above and other objects, features and advantages of the present invention will become more <RTIgt; The first embodiment of the flywheel device of the present invention comprises a wheel disc 1 having a shaft joint 10 in the center thereof, and the wheel disc 1 can be in a circumferential direction (for example, clockwise or counterclockwise) The direction is divided into eight blocks, which are a first block 11, an eighth block 18, a third block 13, a fourth block 14, a ninth block 19, and a second area. Block 12, a seventh block 17, and a sixth block 16. The shaft joint 10 may be a shaft hole or a one-way bearing for coupling a rotating shaft. Alternatively, the shaft joint 10 may be an axle, and the axle may be coupled to a rotating shaft via a transmission device such as a coupling. The invention is not limited thereto. The wheel 1 is circular, and the first to fourth blocks 11, 12, 13, 14 and the sixth to ninth blocks 16, 17, 18, 19 divide the wheel 1 into a radial shape. Arrange the eight equal parts. The first to fourth blocks 11, 12, 13, 14 are respectively provided with a groove 111, 121, 131, 141. Similarly, the sixth to ninth blocks 16, 17, 18, 19 are also respectively provided with a groove The grooves 161, 171, 181, 191, and the volumes of the grooves of each block are not equal, such that the first, second, third, fourth, sixth, seventh, eighth and ninth regions The weight ratio of the blocks 11, 12, 13, 14, 16, 17, 18, 19 forms 1:2:3:4:6:7:8:9.

More specifically, the volume of the groove 111 of the first block 11 is the largest, and the volume of the groove 121 of the second block 12 is second, followed by the third, fourth, sixth, and seventh. And the grooves 131, 141, 161, 171, 181 of the eighth block 13, 14, 16, 17, 18, the volume of the groove 191 of the ninth block 19 is the smallest. According to this, the first to fourth blocks 11, 12, 13, 14 and the sixth to ninth blocks 16, 17, 18, 19 will form eight blocks having different weights, and through the design, the first to fourth blocks 11, 12, 13, 14 and the sixth The volumes of the grooves 111, 121, 131, 141, 161, 171, 181, 191 to the ninth block 16, 17, 18, 19 have appropriate differences, so that the first to fourth blocks 11, The weight ratio of 12, 13, 14 to the sixth to ninth blocks 16, 17, 18, 19 forms 1:2:3:4:6:7:8:9, which is understood by those skilled in the art. .

Referring to FIG. 3 together, FIG. 3 is a cross-sectional view of the flywheel device of the first embodiment taken along line II of FIG. 2, and the wheel 1 is axially oriented in an axial direction of the shaft portion X. The upper surface has opposite surfaces 1a, 1b, wherein the grooves of each block may be blind grooves, and the grooves of each block may be disposed on one surface of the wheel 1; or, each of the regions The grooves of the block can be simultaneously disposed on the two surfaces 1a, 1b of the wheel 1. For example, as shown in FIG. 3, in the present embodiment, the groove 111 of the first block 11 is symmetrically disposed on the two surfaces 1a, 1b of the wheel 1; likewise, the other seven The grooves of the blocks are also symmetrically disposed on the surfaces 1a, 1b of the wheel 1. However, the grooves of each of the blocks may also be through grooves extending through the two surfaces 1a, 1b, and the invention is not limited thereto.

With the above structure, when the first embodiment of the flywheel device of the present invention is actually used, the shaft portion 10 can be coupled to a rotating shaft, and the rotating shaft is driven by a power source (for example, a motor), so that the wheel 1 can be Rotated by the rotating shaft. It is noted that although the first to fourth blocks 11, 12, 13, 14 and the sixth to ninth blocks 16, 17, 18, 19 are eight blocks having different weights, the wheel 1 is The sum of the weights of any two blocks in the radial direction of the shaft joint 10 is equal. More specifically, it is known that the weight ratio of the first to fourth blocks 11, 12, 13, 14 and the sixth to ninth blocks 16, 17, 18, 19 form 1:2:3:4:6 :7:8:9, and the first and ninth blocks 11, 19, the second and eighth blocks 12, 18, the third and seventh blocks 13, 17 and the fourth and sixth The blocks 14, 16 are respectively opposed in the radial direction of the shaft joint portion 10. Therefore, if the sum of the weights of the first and ninth blocks 11, 19 is W, the second and eighth regions are The sum of the weights of the blocks 12, 18, the third and seventh blocks 13, 17 and the fourth and sixth blocks 14, 16 is W. Furthermore, please continue to refer to FIG. 2, the first block 11 and the two blocks (the sixth and eighth blocks 16, 18) have a total weight of 1.5 W; the third block 13 The sum of the weights of the blocks on the two sides (the eighth and fourth blocks 18, 14) is 1.5 W; the block of the ninth block 19 and its two sides (fourth and second blocks 14, 12) The sum of the weights is 1.5 W; and the sum of the weights of the seventh block 17 and its two sides (second and sixth blocks 12, 16) is also 1.5 W. In other words, there is a difference of 90 in the circumferential direction. The sum of the weights of the first block 11, the third block 13, the ninth block 19, and the seventh block 17 and the blocks on the respective two sides thereof are equal.

Accordingly, the first embodiment is equal to the sum of the weights of the two blocks in the radial direction of the shaft portion 10, and is different by 90 degrees in the circumferential direction. The sum of the weights of the blocks 11, the third block 13, the ninth block 19, and the seventh block 17 and the blocks on the respective two sides thereof are equal, so that the wheel 1 can be rotated by the rotating shaft. Turn the balance effect. Wherein, since the first to fourth blocks 11, 12, 13, 14 and the sixth to ninth blocks 16, 17, 18, 19 have different weights, each block of the wheel 1 is in rotation The moment of inertia is different. Taking the rotation of the wheel 1 toward the circumferential direction as an example, the weight of the ninth block 19 is greater than the weight of the second block 12 adjacent thereto, so that the ninth block 19 has a higher moment of inertia when When the ninth block 19 is rotated toward the position of the second block 12, the ninth block 19 can force the second block 12 to rotate together, so that the wheel 1 can be stably rotated. In other words, if the rotation process of the ninth block 19 and the second block 12 is analyzed by the traveling wave function, the forward wave system of the ninth block 19 is larger than the received wave of the second block 12, so the first The nine block 19 is capable of stably rotating toward the position of the second block 12. Similar effects are also present in other blocks of the wheel 1 .

It can be seen that the first embodiment of the flywheel device of the present invention utilizes the first to fourth blocks 11, 12, 13, 14 and the sixth to ninth blocks 16, 17, 18, 19 to have different weights. The rotation inertia of each block of the wheel 1 is different during the rotation and is properly arranged Each of the blocks can achieve the effect of rotational balance when the wheel 1 is rotated by the rotating shaft. Compared with the wheel 91 of the conventional flywheel device 9 described above, it is required to uniformly distribute the weight in the radial direction, which is easily affected by the process tolerance, so that the position of the center of gravity of the wheel 91 is in error, and thus is derived when the wheel 91 rotates. In the case of axial pitching or vibration, the first embodiment of the flywheel device of the present invention has different weights for each block of the wheel 1, in other words, the weight of each block of the wheel 1 has been previously There is a difference, thus making the wheel 1 less susceptible to process tolerances. Accordingly, the wheel 1 of the first embodiment of the flywheel device of the present invention is less prone to eccentricity when rotated, and the wheel 1 can be balancedly rotated without deriving axial deflection or vibration, etc., so that the flywheel device can continue It provides stable torque and has the effect of increasing the torque output of the flywheel device.

Furthermore, referring to FIG. 3, the first embodiment of the flywheel device of the present invention is based on the first to fourth blocks 11, 12, 13, 14 and the sixth to ninth blocks 16, 17. 18, 19 are also respectively provided with a groove 111, 121, 131, 141, 161, 171, 181, 191 for the first to fourth blocks 11, 12, 13, 14 and the sixth to ninth blocks 16 17, 18, 19 form eight blocks with different weights. Opening a groove in each block of the wheel 1 can reduce the effective sectional area of the axial section of the wheel 1, in other words, forming a rectangle in the axial section of the wheel 91 of the conventional flywheel device 9, the present invention The first embodiment of the flywheel device utilizes the groove of the wheel 1 to reduce the effective sectional area of the wheel 1 to reduce the drag coefficient of the wheel 1, and has the effect of further increasing the torque output of the flywheel device.

In order to highlight that the first embodiment of the flywheel device of the present invention does have a higher torque output than the conventional flywheel device 9, please refer to the first and second drawings together with a rotation radius r of 180 mm and a total weight of 30 kg. The disk 1 was tested, and a disk 91 of a conventional flywheel device 9 having a radius of curvature r' of 180 mm and a total weight of 30 kg was used as a control. The rotation of the wheel 1 is driven by a motor using a product of a frame number 132M/rated voltage of 220V/horsepower of 10HP/output of 7.5kW, which consumes 1.18 kW. The power is used to drive the wheel 1 to rotate at 1800 rpm; in contrast, the motor consumes 1.4 kW of power to drive the wheel 91 of the conventional flywheel device 9 to rotate at 1800 rpm. It can be seen that, under the condition that the rotation radius r, r' and the total weight are equal, the energy consumed by the wheel 1 of the first embodiment of the flywheel device of the present invention during the rotation process is significantly lower, which is sufficient to display the phase of the wheel 1 The wheel 91 of the conventional flywheel device 9 can be rotated relatively stably. Therefore, the first embodiment of the flywheel device of the present invention can continuously and stably provide the torsion force, and has the effect of improving the torque output of the flywheel device.

According to the first embodiment, the wheel 1 is divided into eight blocks along the circumferential direction, which are a first block 11, an eighth block 18, a third block 13, and a fourth area. Block 14, a ninth block 19, a second block 12, a seventh block 17, and a sixth block 16, the first to fourth blocks 11, 12, 13, 14 and the sixth to The weight ratio of the ninth block 16, 17, 18, 19 forms 1:2:3:4:6:7:8:9. However, the wheel 1 is circular, so that the person skilled in the art can understand that the wheel 1 can be divided into eight blocks along the circumferential direction, respectively, according to the first embodiment. a block 11, a sixth block 16, a seventh block 17, a second block 12, a ninth block 19, a fourth block 14, a third block 13 and an eighth Block 18, the disc 1 of the form is also within the scope of this first embodiment.

Referring to FIG. 4, a second embodiment of the flywheel device of the present invention is different from the first embodiment in that the wheel 1 is further divided into a radial direction in the radial direction of the shaft portion 10. a ring portion 1c and a central portion 1d connected to the shaft portion 10, the outer ring portion 1c surrounding the central portion 1d, and the first to fourth blocks 11, 12, 13, 14 and The grooves 111, 121, 131, 141, 161, 171, 181, 191 of the sixth to ninth blocks 16, 17, 18, 19 are provided in the central portion 1d. Thereby, the first to fourth blocks 11, 12, 13, 14 and the sixth to ninth blocks 16, 17, 18, 19 do not have any grooves in the outer ring portion 1c, so that the roulette The periphery of 1 (adjacent to the outer ring portion 1c) is heavier and the center of the wheel 1 is adjacent to the The center portion 1d) is light in weight and can further improve the rotational stability of the wheel 1.

The third embodiment of the flywheel device of the present invention is shown in FIG. 5. In this embodiment, the flywheel device further includes an auxiliary rotating module 2, and the auxiliary rotating module 2 includes a base 21 and an adjustment. The member 22 and a magnetic member 23 are disposed on the base 21, and the magnetic member 23 is coupled to the adjusting member 22. The magnetic member 23 has a magnetic surface 231 away from the base 21. Further, the outer circumferences of the first to fourth blocks 11, 12, 13, 14 and the sixth to ninth blocks 16, 17, 18, 19 of the wheel 1 are respectively coupled with a magnet 3, each of the magnets 3 having The magnetic surface 31 of one of the magnets 3 is away from the magnetic surface 31 of the magnetic disk 3, and the magnetic surface 31 of each of the magnets 3 has the same polarity (for example, the same N pole). The adjusting member 22 can be an adjustment structure such as a pivot, a slide or a spring, so that the angle of the magnetic surface 231 and the base 21 can be slightly adjusted. Wherein, when the magnetic member 23 is not subjected to an external force, the magnetic surface 231 of the magnetic member 23 is preferably oriented toward the outer circumference of the wheel 1.

Referring to FIG. 6, when the third embodiment is actually used, the wheel 1 is still rotated by the rotating shaft, and the auxiliary rotating module 2 is used to assist the rotation of the wheel 1. More specifically, taking the position of the eighth block 18 of the wheel 1 toward the position of the auxiliary rotating module 2 as an example, please refer to FIG. 7, when the eighth block 18 is rotated close to the magnetic member 23. A repulsive force is generated between the magnet 3 combined with the outer periphery of the eighth block 18 and the magnetic member 23. Since the magnetic member 23 is coupled to the adjusting member 22, the magnetic member 23 is affected by the repulsive force. It is slightly deflected in a direction opposite to the magnet 3 such that the magnetic face 231 of the magnetic member 23 forms an angle θ with the base 21. At this time, the contact area of the magnetic surface 31 of the magnet 3 and the magnetic surface 231 of the magnetic member 23 will be reduced, so that the repulsive force does not hinder the rotation of the wheel 1.

Next, referring to FIG. 8, when the eighth block 18 is continuously rotated to the position of the auxiliary rotating module 2, the contact area between the magnetic surface 31 of the magnet 3 and the magnetic surface 231 of the magnetic member 23 will be Will become larger, and the magnetic surface 231 of the magnetic member 23 is shaped between the base 21 and the base 21 Forming an angle θ, so that the repulsive force generated between the magnet 3 and the magnetic member 23 can assist in pushing the eighth block 18 along its rotational direction to assist the eighth block 18 to continue away from the auxiliary rotational mode. The direction of group 2 is rotated. Finally, please refer to FIG. 9. After the eighth block 18 is continuously rotated away from the auxiliary rotating module 2, since the magnetic member 23 is no longer subjected to any external force, the magnetic surface 231 of the magnetic member 23 will be The outer circumference of the wheel 1 is restored. In the third embodiment of the flywheel device of the present invention, by adding the auxiliary rotation module 2, the rotation of the wheel 1 can be assisted, and the rotation of the wheel 1 can be ensured.

In summary, the flywheel device of each embodiment of the present invention can make each wheel 1 be divided into eight blocks in a circumferential direction, and each block has a different weight, so that each of the disks 1 can be made. The moment of inertia of the block is different during the rotation, and at the same time, by properly arranging the blocks, the wheel 1 can be rotated and balanced by the rotating shaft, so that the wheel 1 can be balancedly rotated. It does not derive axial deflection or vibration, and does have the effect of increasing the torque output of the flywheel device.

On the other hand, the flywheel device of each embodiment of the present invention is provided with a recess in each block of the wheel 1 so that each block is formed to have a different weight. Opening the groove in each block of the wheel 1 can reduce the effective sectional area of the axial section of the wheel 1 to reduce the drag coefficient of the wheel 1, and has the effect of further improving the torque output of the flywheel device. .

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

1‧‧‧ Roulette

10‧‧‧Axis joint

11‧‧‧First block

111‧‧‧ Groove

12‧‧‧Second block

121‧‧‧ Groove

13‧‧‧ Third block

131‧‧‧ Groove

14‧‧‧Four Block

141‧‧‧ Groove

16‧‧‧Sixth Block

161‧‧‧ Groove

17‧‧‧ seventh block

171‧‧‧ Groove

18‧‧‧ eighth block

181‧‧‧ Groove

19‧‧‧ ninth block

191‧‧‧ Groove

R‧‧‧ radius of rotation

Claims (8)

A flywheel device comprises: a wheel disc, wherein a center of the wheel disc is provided with a shaft joint, and the wheel disc is divided into a first block, an eighth block, a third block and a fourth in a circumferential direction a block, a ninth block, a second block, a seventh block and a sixth block, each of the blocks is provided with a groove, and the volumes of the grooves of each block are not equal The weight ratio of the first block, the second block, the third block, the fourth block, the sixth block, the seventh block, the eighth block, and the ninth block is formed to be 1:2: 3:4:6:7:8:9. The flywheel device of claim 1, wherein the first block, the eighth block, the third block, the fourth block, the ninth block, the second block, and the seventh block And the sixth block divides the wheel into eight quarters in a radial arrangement along the circumferential direction. The flywheel device of claim 2, wherein the wheel is equal in weight to the sum of the weights of any two of the blocks in the radial direction of the shaft portion. The flywheel device of claim 2, wherein the first block, the third block, the ninth block, and the seventh block are equal in weight to the blocks on the respective two sides thereof. The flywheel device of claim 1, wherein the wheel has opposite surfaces in an axial direction of the shaft portion, and the grooves of each block are blind grooves, and each of the grooves The grooves of the block are simultaneously disposed on the two surfaces. The flywheel device of claim 1, wherein the wheel disc is further divided into an outer ring portion and a central portion in a radial direction of the shaft portion, the central portion being connected to the shaft portion. The outer ring portion surrounds the central portion, and the grooves of each of the blocks are disposed at the central portion. The flywheel device of claim 1, further comprising an auxiliary rotating module, the auxiliary rotating module comprising a base, an adjusting member and a magnetic member, wherein the adjusting member is disposed on the base The magnetic member is coupled to the adjusting member, the magnetic member has a magnetic surface away from the base, and the adjusting member is configured to enable the angle of the magnetic surface and the base to be slightly adjusted. And each of the outer circumferences is combined with a magnet, each of the magnets has a magnetic surface away from one of the disks, and the magnetic faces of the magnets have the same polarity as the magnetic faces of the magnetic members. The flywheel device of claim 7, wherein when the magnetic member is not subjected to an external force, the magnetic surface of the magnetic member faces the outer circumference of the wheel, and when one of the magnets rotates close to the magnetic member, The magnetic member will be deflected slightly in a direction opposite to the magnet such that the magnetic face of the magnetic member forms an angle with the base.