JP2017129172A - Rotation auxiliary device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotation auxiliary device capable of performing an effective auxiliary assisting of turning force by applying auxiliary assisting of turning force to a revolving shaft through application of an impact force in addition to an inertia force.SOLUTION: This invention relates to a rotation auxiliary device that is installed at a revolving shaft 3 to apply a rotation force auxiliary to the revolving shaft. The revolving shaft comprises a rotating disc 4 integrally installed at the revolving shaft, and movable members 5 arranged to be movable toward a rotating plane in respect to the rotating disc. The rotating disc has movable members abutted thereto and is provided with a first engaging part A for restricting a rotating position of the movable members toward a rear portion of the rotating disc in its rotating direction and a second engaging part B for restricting a rotating position of the movable members toward a front portion of the rotating disc, and the movable members are arranged in a region from a position exceeding a bottom dead center in a rotating area around the revolving shaft to a part near a top dead center to be abutted against the first engaging part A by its own weight and oscillate toward the second engaging part B by its own weight when it passes near the top dead center and strike against the second engaging part B.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a rotation assist device, and more particularly, to a rotation assist device that applies an auxiliary rotational force to a generator that is rotated by a windmill serving as a drive source in the wind turbine generator.

Conventionally, various measures have been taken to give auxiliary rotation to the rotating shaft.
For example, Patent Document 1 discloses a measure adopted in a wind power generator.

  In this technology, a generator is installed in a nacelle provided at the upper end of a windmill, and a disc-shaped flywheel is integrally provided on the rotating shaft of the generator. By applying an auxiliary rotational force to the rotating shaft of the generator using the above, when the wind turbine as a driving source of the generator is subjected to rotational fluctuation, the rotation unevenness of the generator is suppressed. I am doing so.

JP 2002-155850 A

  By the way, since the nacelle described above is provided at the tip of a column having a considerable height, considering the soundness of the wind power generator, the mass of the flywheel that can be mounted is limited. The auxiliary rotational force applied to the machine is also limited.

  The present invention has been made as a solution to the problems remaining in the prior art described above, and is effective by assisting the rotating shaft with rotational force using impact force in addition to inertial force. It is an object to be solved to provide a rotation assisting device capable of performing a simple rotational force assist.

  In order to solve the above-described problem, a rotation assist device according to the present invention is a rotation assist device that is mounted on a rotation shaft so as to suppress rotation fluctuations of the rotation shaft, and is integrally mounted on the rotation shaft. And a movable member provided so as to be movable in the direction of the rotation surface with respect to the rotating disk, the movable member being brought into contact with the rotating disk, A first locking portion that restricts the rotational position of the rotating disk in the rearward direction of rotation and a second locking portion that restricts the rotational position of the movable member in the forward direction of rotation of the rotating disk are provided. The movable member is in contact with the first locking portion by its own weight in a region from the position exceeding the bottom dead center of the rotation region around the rotation axis to the vicinity of the top dead center; When passing near the dead center, it swings toward the second locking part by its own weight. Characterized in that it is adapted to collide with the second engagement portion of the lever.

  The rotation assist device of the present invention is used, for example, by connecting the rotation shaft to a drive source such as a windmill using a rotation transmission means.

  With this configuration, when the rotating shaft is rotated by the drive source, the rotating disk and the movable member are also rotated around the rotating shaft along with the rotation.

  Due to the rotational movement of the rotating plate and the movable member, an inertial force corresponding to the total mass of these acts on the rotating shaft, and an auxiliary rotating force is added to the rotating shaft.

  On the other hand, the movable member is brought into contact with the first locking portion of the rotating disk in the region from the vicinity of the bottom dead center to the vicinity of the top dead center due to its own weight, Rotate and move together.

  Here, the movable member is opposed to the second locking portion provided in front of the rotational movement direction at a predetermined interval.

  Thus, when the movable member reaches near the top dead center and its center of gravity moves forward in the rotational direction from the vertical plane passing through the center of the rotation shaft, the movable member is moved by the weight of the second member. It swings toward the stop and collides with this second locking part.

  Accordingly, the impact force at this time acts as an auxiliary rotational force on the rotating shaft, and the impact force and the inertial force described above cooperate to give the auxiliary rotating force to the rotating shaft. .

  As described above, since the auxiliary rotational force is given by the inertial force and the impact force, even when the rotation of the drive source fluctuates, the rotation unevenness of the rotating shaft rotated by that is suppressed. The

  Here, power generation can be performed by connecting a generator to the rotating shaft, and the generator is connected to a drive source for driving the generator via the rotation assist device. Thus, the generator and the drive source can be made independent.

  Therefore, the heavy object can be separated from the drive source to secure the mass of the heavy object, and the inertial force can be increased.

  It is preferable that a plurality of the movable member and the first and second engaging portions are provided on the rotating disk at equal intervals around the rotation axis.

  By adopting such a configuration, the impact force generation interval described above can be narrowed to increase the impact force.

  And you may make it provide the rotary disk provided with the said 1st and 2nd latching | locking part, and the said movable member in the said rotating shaft in the several places spaced apart in the axial direction.

  With such a configuration, it is possible to increase the inertial force by increasing the mass of the movable part attached to the rotating shaft, and it is possible to increase the impact force generated by increasing the number of the movable members.

  And it is preferable to arrange | position the several said movable member adjacent to the said rotating shaft direction shifting around the said rotating shaft.

  By adopting such a configuration, it is possible to make the impact force uniform by further narrowing the generation interval of the impact force generated by the movable member.

Further, it is preferable that an urging member for urging the movable member toward the second locking portion is provided between the movable member and the turntable.
Then, the urging force of the urging member is allowed to abut on the first locking portion of the movable member while the movable member moves in the region from the vicinity of the bottom dead center to the vicinity of the top dead center. Set the range.

With this configuration, when the movable member swings toward the second locking portion in the vicinity of the top dead center, the swinging operation is reliably and quickly performed by the biasing member. Done.
Further, the urging force of the urging member is also added to the impact force described above.

  On the other hand, when the movable member moves from the vicinity of the bottom dead center to the vicinity of the top dead center, the movable member swings away from the second locking portion toward the first locking portion. However, at this time, the oscillating member swings against the urging force of the urging member.

  Therefore, the aforementioned swinging operation is performed gently, and the collision between the movable member and the first locking portion is mitigated.

Furthermore, a disk-shaped rotary weight having the same rotation axis as that of the rotation axis can be integrally provided on the rotation axis.

  With such a configuration, the inertial force can be increased by increasing the mass for applying the inertial force in the rotation direction to the rotation shaft.

  According to the rotation assist device of the present invention, an auxiliary rotation force can be applied to the rotation shaft by using an impact force in addition to the inertial force, so that an effective auxiliary rotation force can be generated.

It is a longitudinal cross-sectional view which shows one Embodiment of this invention. It is a front view showing one embodiment of the present invention. 1 shows an embodiment of the present invention and is an enlarged perspective view of a main part. 1 is a front view showing a base body structure according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a rear view showing a base body structure according to an embodiment of the present invention. 1 is a front view illustrating an operation of an embodiment of the present invention. It is a front view which shows other embodiment of this invention. It is a longitudinal cross-sectional view which shows the modification of this invention. It is a front view which shows other embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
In these drawings, reference numeral 1 denotes a rotation assisting device according to the present embodiment, which is mounted on a rotating shaft 3 rotatably supported by a base 2 and applies a rotational force to the rotating shaft 3 in an auxiliary manner. The rotation assisting device 1 configured as described above includes a rotating disk 4 mounted integrally with the rotating shaft 3 and a movable member 5 provided so as to be able to swing with respect to the rotating disk 4 in the rotation plane. As shown in FIG. 2, the movable member 5 is brought into contact with the rotating disk 4 to restrict the rotational position of the movable member 5 in the rearward direction of the rotating disk 4. A first locking portion A and a second locking portion B for restricting the rotational position of the movable member 5 forward in the rotational direction of the rotating disk 4 are provided. Due to its own weight in the area from the position where the bottom dead center is exceeded to the vicinity of the top dead center When contacting the first locking portion A and passing through the vicinity of the top dead center, the second locking portion B swings toward the second locking portion B by its own weight. Has been made to collide with.

  More specifically, the base body 2 is constituted by a pair of base body constructs 2a and 2b that are brought into contact with each other from the length direction of the rotary shaft 3, and a space portion is formed therein.

  A through hole is formed in the center of the side wall of each of the base body structures 2a and 2b, and the rotary shaft 3 is rotatably supported through the through hole through a bearing 6 in a through state. Yes.

  As shown in FIGS. 1 and 2, the rotating disk 4 is formed in a thick disk shape, and is attached to the rotating shaft 3 by inserting the rotating shaft 3 in the center thereof. Relative rotation about the rotation shaft 3 is restricted by a key 7 interposed between the shaft 3 and the key 3.

  The rotating disk 4 is formed with a boss 4a at the center of which the rotating shaft 3 is fitted.

  Further, the rotary disk 4 has a fan-shaped concave portion 8 having a predetermined central angle from the vicinity of the boss portion 4a to the outer peripheral edge and opening radially outward, as shown in FIG. It is formed in three places around the axis at intervals of 120 °.

  Further, as shown in FIG. 3, a pair of flanges 9 are integrally formed at the bottom of each sector-shaped recess 8 with an interval in the central axis direction, and each of the pair of flanges 9 includes: A through hole 9a is formed coaxially along the central axis direction.

  The movable member 5 is formed in a fan shape similarly to the fan-shaped recess 8, and its central angle is smaller than that of the fan-shaped recess 8, so that the movable member 5 can be stored in the fan-shaped recess 8. Yes.

  The movable member 5 is formed to have a thickness substantially equal to the thickness of the rotating disk 4 and is positioned in the same plane as the rotating disk 4 in a state of being housed in the fan-shaped recess 8. ing.

  On the other hand, the main part of the movable member 5 (the narrowest part and the part positioned at the bottom of the sector-shaped recess 8) is formed to have a thickness that can be inserted between the pair of flanges 9, and A through-hole 5a along the thickness direction is formed.

  The through hole 5 a has an inner diameter that is substantially equal to the through hole 9 a formed in the flange 9.

The movable member 5 is disposed inside each fan-shaped recess 8.
Then, the main part of each movable member 5 is inserted between the pair of flanges 9, and the through holes 9 a of the flange 9 and the through holes 5 a of the movable member 5 are overlapped, as shown by arrows in FIG. 3. As described above, the movable member 5 is swingably mounted on the rotating disk 4 by fitting the locking pins 10 into the through holes 5a and 9a.

  On the other hand, as shown by an arrow in FIG. 2, when the rotation direction of the rotating disk 4 is counterclockwise, a side surface 8 a of the fan-shaped recess 8 on the rear side in the rotation direction is opposed to the movable member 5. The first locking portion A is the front side surface 8b in the rotation direction, and the second locking portion B is opposed to the movable member 5.

  Thus, the movable member 5 attached to the rotating disk 4 is formed by the side surface 8a constituting the first locking portion A and the side surface 8b constituting the second locking portion B. In the sector-shaped recess 8, it can be swung in the surface direction of the rotating disk 4.

  Further, in the present embodiment, the sound deadening member 11 is attached to the front and back surfaces of the movable member 5 in the swing direction, and the movable member 5 is in contact with the side surfaces 8a and 8b due to the swing of the movable member 5. It is designed to reduce the impact sound.

  Furthermore, a generator 13 is connected to one end portion of the rotating shaft 3 that protrudes from the base body 2 via a rotation transmission mechanism 12 such as a gear, and the other end portion is for rotational input. The driven gear 14 is mounted.

  A rotating shaft of a windmill as a drive source 15 is connected to the driven gear 14 via a power transmission endless belt 16 such as a chain or a belt.

  In the rotation auxiliary device 1 of the present embodiment configured as described above, the rotation shaft 3 is rotated in the direction of the arrow in FIG.

  As the rotary shaft 3 rotates, the rotary disc 4 is rotated in the same manner, and the movable members 5 are moved around the rotary shaft 3.

  When such a movable member 5 moves, the vertical position passing through the axis of the rotary shaft 3 connecting the lower position of the rotary shaft 3 (ie, bottom dead center) and the upper position of the rotary shaft 3 (ie, top dead center). With the surface as a boundary surface, a region on one side of the boundary surface is a descending region of the movable member 5 and the other region is a rising region of the movable member 5.

Then, as shown in FIG. 2, the movable member 5 in the descending region swings forward in the rotational direction by its own weight and is brought into contact with the side surface 8b constituting the second locking portion B. It is done.
Further, as shown in FIG. 2, the movable member 5 in the ascending region swings backward in the rotational direction by its own weight and is brought into contact with the side surface 8a constituting the first locking portion A. It is done.

  Here, when the rotation of the turntable 4 described above continues and the movable member 5 in the ascending region moves to the descending region beyond the top dead center, it is brought into contact with the first locking portion A. Further, the movable member 5 is separated from the first locking portion A by its own weight and is swung toward the second locking portion B, so that as shown in FIG. 2 is brought into contact with the locking portion B.

The aforementioned swinging operation of the movable member 5 is performed at the moment when the center of gravity of the movable member 5 passes the above-described top dead center.
Therefore, when the swinging operation is suddenly performed and the movable member 5 comes into contact with the second locking portion B, an impact force is applied to the second locking portion B.

  Thus, the impact force applied to the second locking portion B is applied as a rotational force to the rotary shaft 3 through the rotary disk 4.

  On the other hand, since both the rotating disk 4 and the movable member 5 have mass, an inertial force accompanying the rotation is applied to the rotating shaft 3.

  Therefore, in the rotation assistance device 1 of the present embodiment, an auxiliary rotation force can be applied to the rotation shaft 3 by the inertial force and the impact force.

  As a result, the rotation of the rotary shaft 3 can be stabilized, and the influence of rotational fluctuations in the drive source 15 can be suppressed.

  And when this generator 13 is connected to the said rotating shaft 3 like this embodiment, the rotation nonuniformity of this generator 13 is suppressed and stable electric power generation is enabled.

  On the other hand, the rotation assist device 1 of the present embodiment is connected to the drive source 15 by the power transmission endless belt 16 and is installed independently from the drive source 15.

  Therefore, a sufficient rotational force can be generated in the rotary shaft 3 without placing a heavy object on the drive source 15, thereby preventing structural limitations on the drive source 15. The degree of freedom in designing the drive source 15 can be increased.

  Note that the shapes, dimensions, and the like of the constituent members shown in the embodiment are examples, and can be variously changed based on the type of drive source to be applied, design requirements, and the like.

  For example, as shown in FIG. 7, an urging member 17 that urges the movable member 5 toward the second locking portion B is provided between the movable member 5 and the rotating disk 4. May be.

  And while the urging force of the urging member 17 is in the rising region where the movable member moves in the region from the bottom dead center vicinity to the top dead center vicinity, the first locking portion of the movable member 5 A range that allows contact with A is set.

  With such a configuration, when the movable member 5 swings toward the second locking portion B, the operation is accelerated by the biasing member 17, and the generated impact force is reduced. Can be increased.

  Further, when moving from the descending region to the ascending region, the movable member 5 is swung from the second locking portion B toward the first locking portion A. The urging member 17 acts as a drag force, whereby the impact force between the movable member 5 and the first locking portion A can be reduced.

  Furthermore, as shown in FIG. 8, a plurality of sets (two sets in the illustrated example) of the rotation assist device 1 may be provided at intervals in the axial direction of the rotation shaft 3.

  By setting it as such a structure, the mass of a movable part can be increased and the inertial force which acts on the said rotating shaft 3 can be raised.

  In this case, it is preferable that the movable member 5 is arranged so as to be shifted around the rotation shaft 3 between the respective groups.

  Further, as shown in FIG. 8, the rotary shaft 3 may be provided with a disk-shaped rotary weight 18 having the same rotation axis as the axis of the rotation shaft 3.

  By adopting such a configuration, it is possible to increase the inertial force by increasing the mass for applying the inertial force in the rotation direction to the rotary shaft 3.

  Further, as shown in FIG. 9, arcuate guide rails 19 and 20 are concentrically formed on the side surface of the rotating disk 4 at the center and outer peripheral edge of the rotating disk 4, and the surface direction of the rotating disk The movable member 21 is supported between the guide rails 19 and 20 via guide rollers 22 that are rotatably engaged with the guide rails 19 and 20. You can also

  In the case of such a configuration, the pair of protrusions 23 and 24 that are opposed to the movable member 21 before and after the moving direction are integrally provided on the side surface of the rotating disk 4, so that the first described above. The locking portion and the second locking portion are formed.

  The guide rails 19, 20, the movable member 21, the guide roller 22, and the protrusions 23, 24 described above are provided at a plurality of intervals around the axis of the rotary shaft 3.

  Further, the guide rails 19 and 20, the movable member 21, the guide roller 22, and the ridges 23 and 24 described above are provided on both side surfaces of the rotating disk 4, and the movable member 21 is rotated between the side surfaces. It can also be arranged so as to be held at a position displaced about the axis of the shaft 3.

  Further, the urging member 17 described above may be provided between each movable member 21 and the rotating disk 4.

DESCRIPTION OF SYMBOLS 1 Rotation auxiliary | assistance apparatus 2 Base | substrate 2a Base | substrate structure 2b Base | substrate structure 3 Rotating shaft 4 Rotary disk 4a Boss part 5 Movable member 5a Through-hole 6 Bearing 7 Key 8 Fan-shaped recessed part 8a Side surface (1st latching means)
8b Side surface (second locking means)
DESCRIPTION OF SYMBOLS 9 Flange 9a Through hole 10 Locking pin 11 Silencer member 12 Rotation transmission mechanism 13 Generator 14 Driven gear 15 Drive source 16 Power transmission endless belt 17 Energizing member 18 Rotating weight 19 Guide rail 20 Guide rail 21 Movable member 22 Guide roller 23 Ridge 24 ridge A first locking portion B second locking portion

Claims (6)

  A rotation auxiliary device that is mounted on a rotary shaft and supplementarily applies a rotational force to the rotary shaft, the rotary plate integrally mounted on the rotary shaft, and a rotary surface of the rotary plate A movable member provided to be movable in a direction, and the movable member is brought into contact with the rotating disk to restrict a rotational position of the movable member to the rear in the rotation direction of the rotating disk. A first locking portion and a second locking portion for restricting the rotational position of the movable member to the front in the rotational direction of the rotating disk, wherein the movable member is a rotational region around the rotational axis. In the region from the position exceeding the bottom dead center to the vicinity of the top dead center, the second weight is brought into contact with the first locking portion by its own weight and passes through the vicinity of the top dead center. Swaying toward the locking part of the door and colliding with the second locking part Rotation assistance device according to claim.   The rotation assisting device according to claim 1, wherein a plurality of the movable member, the first and second locking portions are provided on the rotating disk at equal intervals around the rotation axis.   2. The rotating disk including the first and second locking portions and the movable member are provided on the rotating shaft at a plurality of positions spaced in the axial direction. The rotation auxiliary device according to claim 2.   The rotation auxiliary device according to claim 3, wherein the movable members provided at intervals in the axial direction of the rotation shaft are arranged so as to be shifted from each other around the rotation shaft.   A biasing member that biases the movable member toward the second locking portion is provided between the movable member and the rotating disk, and the biasing force of the biasing member is the movable member. The movable member is set in a range that allows the movable member to abut on the first locking portion while moving in the region from the vicinity of the bottom dead center to the vicinity of the top dead center. The rotation auxiliary device according to any one of claims 1 to 4. 6. The rotation assist device according to claim 1, wherein a disk-shaped rotary weight having a rotation axis identical to the axis of the rotation shaft is integrally provided on the rotation shaft. .