JP5641861B2 - Wind turbine unit and wind power generator - Google Patents

Description

  The present invention relates to a wind turbine unit that can be used for wind power generation, and more particularly, to a wind turbine unit that can adjust the amount of air received by moving a wind receiving plate and a wind turbine generator that uses the wind turbine unit.

  Conventional wind turbines used for wind power generation are mainly blade and propeller type, but they are currently stopped because they are difficult to control in the case of strong winds such as typhoons.

  Originally, the stronger the wind, the higher the efficiency of wind power generation. Therefore, it is required that the wind power can be controlled so as to rotate stably when the wind is strong.

  In view of this problem, the applicant has applied for a wind turbine generator that can adjust the flow velocity in the wind tunnel body by arranging a propeller-type windmill unit in the wind tunnel body and moving the wall surface of the wind tunnel body (Patent Document). 1).

JP 2009-185806 A

  In the blade and propeller type wind turbine unit, a certain amount of air flow is required, and there is a problem that sufficient power generation cannot be realized because the area receiving the wind is small with respect to the light wind.

  In addition, there are vertical and drag type Savonius type wind turbines that receive a relatively large area of wind. However, it is difficult to control wind speed fluctuations, and it is inefficient for large wind pressure areas. However, there is a problem that the apparatus weight per output is large and not very economical.

  The present invention has been made in view of the above problems, and its purpose is to increase the wind receiving area so that the wind can be sufficiently received in the case of a weak wind, and to ensure a predetermined rotational speed. In the case of strong wind, it is possible to reduce the wind receiving area and control it to a predetermined number of revolutions, and has high strength against wind pressure, and a highly reliable wind turbine with little cause of failure and its wind turbine. It is providing the wind power generator which used the.

  The present invention can solve the above-described problems by the following means.

  The first aspect of the present invention is formed by connecting a pair of rotating plates with two or more rotating shafts standing vertically to the rotating plate at equiangular and equidistant positions from the center of the rotating plate. A windmill unit comprising a rotating body and two or more wind receiving plates having a curved cross-sectional shape attached to each of the rotating shafts.

  The rotating body is configured by being coupled by two or more rotating shafts that are vertically provided on a pair of rotating plates, and the rotating body is subjected to rotational force by wind received by a wind receiving plate attached to the rotating shafts. Is what you get. The number of rotation shafts is the same as the number of wind receiving plates described later, and generally three or more are preferable.

  The wind receiving plate may be any one as long as the cross-sectional shape is curved so that it can easily receive the wind, and the cross-sectional shape may be an arc shape or a streamline shape. Note that there are cases where two wind receiving plates do not rotate due to the wind direction, and generally three or more are preferable, but two can be manufactured. For example, as shown in FIG. 8, when two wind turbine units are connected in the axial direction and the phases of the left and right wind turbine units are shifted by 90 degrees, the problem of the non-rotating position is solved.

  The rotary shaft may be any one provided vertically between a pair of rotary plates and movable with the wind receiving plate attached. The drive of the rotary shaft may be either electric or hydraulic drive, The thing using a part of rotational force of a windmill unit etc. may be used.

  According to a second aspect of the present invention, each wind receiving plate is fixed to the rotating shaft via a connecting plate, and each wind receiving plate is provided so as to be able to appear and retract from the rotating body according to the rotation of the rotating shaft. is there.

  The connecting plate is for fixing the wind receiving plate to the rotating shaft, and may be a plate fixed by welding with a rib plate material that can be fixed at a certain distance from the rotating shaft.

  Since the rotation shafts are provided at equal angles with each other at the same angle from the center of the rotation plate, the wind receiving plate is accommodated in the rotation body from a position protruding outward from the rotation body by the rotation of the rotation shaft. It can be moved to a position and can appear and disappear.

    According to a third aspect of the present invention, each rotating shaft to which the wind receiving plate is fixed can be rotated in conjunction with the driving means, and each wind receiving plate is interlocked with the rotation of the rotating shaft and is synchronized with the rotating body. The wind turbine unit according to claim 2, wherein the wind turbine unit is capable of moving up and down.

  Each rotating shaft may be any mechanism as long as it is interlocked, and a gear may be provided on each rotating shaft and interlocked with a chain.

  When each rotating shaft is linked, each wind receiving plate fixed to the rotating shaft is also linked.

  According to a fourth aspect of the present invention, the rotation of the rotating shaft in one direction causes the wind receiving plate to expand and spread outside the rotating body to enlarge the wind receiving area, and the rotating shaft rotates in the opposite direction. Accordingly, the wind-receiving plate is housed so as to be wound inside the rotating body, and the wind-receiving unit is retracted from the rotating body by reducing or losing the wind receiving area.

  The wind receiving plate is desirably controlled so that it spreads outside the rotating body when the wind hitting the windmill unit is weak and is housed inside the rotating body when the wind is strong. For the movement control of the wind receiving plate, a wind strength detecting means may be provided to automatically appear and disappear.

  According to a fifth aspect of the present invention, a rack having teeth mounted in the circumferential direction of the rotating body is provided on the outer surface side of each wind receiving plate, and a pinion gear is provided on the adjacent rotating shaft side so as to correspond to the rack. -A windmill unit in which each wind receiving plate is developed and stored by rotation of a rotating shaft by an & pinion mechanism.

  According to a sixth aspect of the present invention, the rack and pinion mechanism is a windmill unit that is always meshed during rotation of the rotating shaft.

  This rack-and-pinion mechanism is realized by adjusting the arrangement of an odd number of rotating shafts that are equidistant from the center of the rotating plate and the mounting angle of the wind receiving plate fixed to the rotating shaft. Is.

  With the rotation of the wind receiving plate fixed to the rotating shaft, the outer surface of the wind receiving plate is in contact with the outer surface of the adjacent rotating shaft, and the distance is set by the connecting plate so as to rotate so as to draw an arc. On the contact surface, a rack is provided on the wind receiving plate side, and a pinion gear is provided on the rotating shaft side.

  A seventh aspect of the present invention is a wind turbine unit in which the rack and pinion mechanism is provided so as not to overlap with another adjacent rack and pinion mechanism.

  By shifting the mounting position of each rack-and-pinion mechanism up and down, the adjacent members may not overlap each other.

  An eighth aspect of the present invention is a wind turbine generator using the windmill according to any one of the first to seventh aspects.

  The generator may be one in which the rotational force of the windmill is taken out by transmission means such as a gear or a rod, and the generator is driven through the transmission means, or a small generator is connected to the rotation shaft of the windmill.

  Since no inverter (DC, AC power converter) is used, even if multiple units are installed in parallel, the problem of harmonics does not occur.

  The present invention has the following effects.

  1) Since the wind receiving area can be enlarged even in a light wind, sufficient power generation can be realized.

  2) Since the wind receiving area can be changed according to the strength of the wind from light wind to strong wind, stable rotation of the windmill can be maintained and stable power generation can be realized.

  3) Since the wind receiving area can be adjusted by moving the wind receiving plate even if the wind speed or the air volume changes, the rotation speed of the wind turbine can be controlled to be constant.

  4) Since an odd number of wind-receiving plates can be moved in conjunction with each other, the arrangement of the wind-receiving plates is constantly contrasted, so that a balance is maintained and stable rotation with less vibration and vibration of the windmill is obtained.

  5) One end of the wind receiving plate is supported by the rotating shaft, the other end is supported by the rotating shaft of the adjacent wind receiving plate, and the wind receiving plate rotates while receiving both winds. Therefore, even if the wind receiving plate is thin, sufficient strength is maintained. In particular, even in a steep and strong wind, the wind receiving plate can be safely moved without being bent or damaged by the wind pressure.

  5) Since the rotation speed of the windmill can be controlled to 60 Hz or 50 Hz without the need for a converter, an inverter (direct current or alternating current converter), or a battery, problems of harmonics and frequency due to power generation can be solved.

  6) Since there is no problem of harmonics and frequency fluctuations, power can be generated by installing a plurality of generators in parallel, and stable power can be secured.

It is a schematic external view which shows one Example of the windmill unit which has arrange | positioned the three wind receiving plates by this invention. It is a front view which shows one Example of the wind receiving plate (blade) of this invention. It is a rear view which shows one Example of the wind-receiving plate (blade) of this invention. It is a general | schematic external view which shows the combined state of the three wind receiving plates (blade) of this invention. It is a schematic plan view which shows the expansion | deployment and accommodation state of the wind-receiving plate (blade) of the 3 blade | wing windmill of this invention. It is the schematic which shows the power take-out apparatus which combined the windmill unit of this invention. It is the schematic which shows another Example of the wind-receiving plate (blade | blade) of this invention which took the muffling means. In the figure, (1) is a front perspective view, (2) is a rear perspective view, and (3) is an AA horizontal sectional enlarged view of (1). It is drawing which shows the cross section of XX, YY, and SS of the power take-out apparatus of FIG. It is the schematic which shows one Example of the electric power generating apparatus using the 3-blade windmill by this invention. It is drawing which shows the cross section of TT of the power take-out apparatus of FIG. It is the schematic which shows one Example of the electric power generating apparatus using the 3-blade windmill by this invention. It is the schematic which shows one Example at the time of the maintenance of the electric power generating apparatus using the 3-blade windmill by this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings of the examples.

  FIG. 1 is an external view showing an embodiment of a three-blade windmill unit using a rotating body and a wind receiving plate according to the present invention.

  This wind turbine unit includes a rotating body 10 formed by connecting a pair of rotating plates 2 with three rotating shafts 3, and a wind receiving plate 1 attached to the rotating shaft 3.

  The three rotating shafts 3 are arranged in the vicinity of the outer peripheral portion of the disc 2 at an equal distance from the center and at an angle of 60 degrees with respect to each other.

  As the blades of the wind turbine unit, a wind receiving plate 1 having a circular arc cross section is used, and the inner curved surface side of the wind receiving plate 1 is a horizontal connecting plate 4 attached to the upper and lower portions of the rotating shaft 3. It is fixed.

  The wind-receiving plate 1 is moved so as to draw a constant arc by the rotation of the rotating shaft 3, and the outer surface of the wind-receiving plate 1 is provided so as to move along the outer surface of the adjacent rotating shaft 3. .

  As for the contact surface between the wind receiving plate 1 and the adjacent rotating shaft 3, a rack 5 is provided on the wind receiving plate 1 side, and a pinion gear 6 is provided on the rotating shaft 3 side.

  Thus, the rack 5 of the wind receiving plate 1 and the pinion gear 6 of the rotating shaft 3 are engaged with each other. When the rotating shaft 3 is rotated clockwise by the rotation of the rotating shaft 3, the wind receiving plate 1 is When it is projected to the outside of the rotating body 10 and unfolded and turned counterclockwise, it is stored inside the rotating body 10.

  FIG. 2 is a front view of the wind receiving plate. As shown in the drawing, racks 5 with teeth continuously attached in the horizontal direction are provided on the upper and lower portions of the wind receiving plate 1 on the outer curved surface side.

  FIG. 3 is a rear view of the wind receiving plate. As shown in the figure, a pinion gear 6 is provided on the rotary shaft 3 at a position corresponding to the rack 5.

  FIG. 4 is a schematic external view showing a combined state of three wind receiving plates (blades). The state which removed the upper and lower rotating plate 2 is shown.

  In the wind turbine, the wind receiving plate 1 is rack-and-pinion by a rack 5 provided on the outer surface side of the wind receiving plate and a pinion gear 6 provided on the adjacent rotating shaft 3 by the rotation of each rotating shaft 3. When the rotary shaft 3 is rotated by the mechanism and rotated in the clockwise direction, the wind receiving plate 1 is unfolded to the outside and the wind receiving area is increased. The wind receiving area is reduced.

  FIG. 5 is a schematic plan view showing a state in which the wind receiving plate (blade) of the three-blade windmill of the present invention is deployed and stored.

  (1) indicates that the wind receiving plate 1 is fully deployed. When fully deployed, receive maximum wind.

  In the present invention, one side surface of the wind receiving plate 1 is supported by the rotating shaft 3 via the connecting plate 4, and the other side surface is provided with a pinion gear 6 provided on the adjacent rotating shaft 3 by a rack and pinion mechanism. Is supported by both sides of the wind-receiving plate 1, so that the wind-receiving plate 1 is not bent or damaged even in a sudden strong wind, and can be moved safely. it can.

  Further, when the rotating shaft 3 is rotated counterclockwise from the fully deployed state, the wind receiving plate 1 is supported on the center side by the rack and pinion mechanism as shown in (2) and (3). It will be stored.

  In (4), the rotating shaft 3 is further rotated counterclockwise, and the tip of the rack of the wind receiving plate 1a comes into contact with the inside of the adjacent wind receiving plate 1b. In this state, the wind receiving area is minimized.

  Moreover, as shown in FIG. 6, you may make it the front-end | tip part 5a1 of the rack 5a of the wind-receiving plate 1a penetrate and penetrate the adjacent wind-receiving plate 1b. In this state, one wind receiving plate 1a is supported at the three points of the two rotating shafts 3a and 3b and the through-hole portion of one wind receiving plate 1b, which is a very strong support state. (1) is a plan view, and (2) is a perspective view showing a combined state.

  FIG. 7 is a schematic view showing another embodiment of the wind receiving plate provided with a silencer.

  Conventionally, as a problem of windmills, there is a problem of wind noise. In order to solve this problem, the shape of the tip portion 7 of the wind receiving plate 1 is a saw blade shape as shown in the figure, a plate 8 having a large number of small holes 8a is attached on the front side, and the rear side is attached. Many projecting portions 9 may be provided. (1) of FIG. 7 is a front perspective view, and (2) is a rear perspective view. (3) is the AA section horizontal cross-section enlarged view of (1). In this way, wind noise can be prevented by generating eddy currents by the small holes 8 and the protrusions 9 at the tip of the wind receiving plate 1.

  FIG. 8 is a schematic view showing a state of a power take-off device in which the three-blade wind turbine unit of the present invention is combined.

  In the power take-out device of the present embodiment, two of the four wind turbine units 10 are first arranged in series by the output shaft 26, and further, a power take-out gear 25 is provided in the middle. The two wind turbine units (22a, 22b and 23a, 23b) arranged in series are further arranged in parallel. The two output shafts 26 connecting these wind turbine units arranged in series are configured to be held by holding members 24a and 24b.

  That is, as shown in FIG. 8, the wind turbine unit is attached by connecting the two units 22 a and 22 b horizontally at the upper portion and the two units 23 a and 23 b horizontally at the lower portion by the output shaft 26.

  And the two connected wind turbine units provided in each stage are the left wind turbine unit and the right wind turbine unit, and the arrangement of the wind receiving plates is as shown in (1) and (2) of FIG. The phase of the wind receiving plate is shifted by 120 degrees.

  This is because the wind turbine unit of the embodiment has three blades. For example, when the wind turbine unit 22a receives strong wind in the state (1), the wind turbine unit 22b receives weak wind in the state (2). It becomes a state and keeps the balance of rotation as the whole power extraction part.

  Further, as shown in (3), the three rotating shafts 3 to which the wind receiving plates 1 of the respective wind turbine units are attached are connected by a chain a via a gear (not shown) provided on the rotating shaft. In addition, the three rotating shafts 3 are interlocked.

  According to the power take-out part of the present invention provided in this way, when the wind is weak, the wind receiving plate of the wind turbine unit is expanded outward to increase the wind receiving area, and when the wind is strong, the wind turbine unit The wind receiving plate is housed inside to reduce the wind receiving area, thereby controlling the rotation of the wind turbine unit and keeping it at a predetermined rotation, thereby realizing a stable and highly reliable power generator.

  Further, in the two-stage wind turbine units (22a, 22b and 23a23b) arranged in parallel, as shown in FIG. 10, in order to minimize the distance L between the two-stage wind turbine units, The wind turbine units may be provided close to each other, and the wind receiving plates 1 of both wind turbine units may be shifted by 120 degrees so that the wind receiving plates 1 do not contact each other.

  FIG. 11 is a schematic view showing an embodiment of a power generator using the wind turbine unit of the present invention.

  The power generator of the present embodiment has a generator installed in a streamlined main body 20 and is installed on a rotatable mount 21 so that it can always face the wind direction. It is.

  Two three-blade wind turbine units 22 and 23 are attached to the rear part of the main body in two upper and lower stages.

  Inside the main body 20, a fly hole 27 for transmitting the rotational force from the wind turbine units 22, 23, a rotational speed control mechanism 28 for controlling the fly hole 27, a generator 29, and the generator 29 are coaxial. An air motor 30, a clutch 31, a compressor 32, and an air tank 33 for storing compressed air from the compressor 32 are provided.

  As indicated by the arrows in the figure, the wind flows along the outer surface of the streamlined main body 20, and the wind hits the outside of the two-stage wind turbine unit provided at the rear, and rotates. The upper windmill unit 22 rotates clockwise as indicated by the arrow, and the lower windmill unit 23 rotates counterclockwise as indicated by the arrow.

  Usually, the rotational force from the wind turbine units 22 and 23 is generated by the flywheel 27 and the rotation speed control mechanism 28 by stable rotation. The rotational force from the wind turbine units 22 and 23 is in the opposite direction, but at one stage of power transmission, one rotation is converted into rotation in the same direction by a mechanism (not shown) such as a planetary gear. Thus, all the rotational force can be transmitted to the generator 29.

  Further, when the compressed air is stored in the air tank 33 by the compressor 32 and the wind becomes weak and the rotation of the windmill units 22 and 23 falls, the compressed air in the air tank 33 is utilized to generate the clutch 31. And the air motor 30 can be rotated to reinforce the rotational force of the wind turbine units 22 and 23.

  Further, in this embodiment, as shown in FIG. 11, the power generation apparatus main body 20 is installed on a rotatable base 21 and supported by a plurality of legs 34, 35, and 36.

  In the case of maintenance of the power generation apparatus, as shown in FIG. 12, the movable cylinder 37 can be extended to open the legs 34, 35, and 36, and the position of the power generation apparatus can be brought closer to the ground. The movable cylinder may use any driving means such as a hydraulic type, a pneumatic type, and an electric type.

  Each leg portion is provided with wheels 34a, 35a, 36a, and the wheel 36a is provided with a drive device 36b, so that it can be smoothly driven to open and move the power generator up and down. is there.

  In the present embodiment, as shown in FIGS. 11 and 12, a braking device 38 is provided on a leg portion 36 provided with a movable cylinder.

  The braking device 38 is provided with a water tank portion 38b at the tip of a strong support bar 38a, and is provided at the lower portion of the leg portion 36 so as to be rotatable about the wheel 36a of the leg portion. On the opposite side, a hook hook 38c is provided so as to protrude from the shaft.

  At the time of maintenance, these leg portions 34, 35, and 36 are opened by contraction of the movable cylinder 37. However, as the opening increases, the load on the movable cylinder 37 increases.

  In this case, in order to reduce the addition of the movable cylinder 27 and brake the rapid movement, as shown in FIG. 12, the latch hook 38c is hooked on the leg portion 36, and the water tank 38b at the tip is lifted together with the support bar 38a. It is done.

  Since water is stored in the water tank 38b, it acts to brake the opening of the leg portion by its weight.

  The braking force can be adjusted by the capacity of the water tank 38b and the length of the support bar 38a. The amount of water may be adjusted as appropriate with a water supply pump or the like, and the support bar 39a may be movable in the telescopic direction.

DESCRIPTION OF SYMBOLS 1 Wind receiving plate 2 Rotating plate 3 Rotating shaft 4 Connecting plate 5 Rack 6 Pinion gear 7 Sawtooth-shaped front-end | tip part 8 Small hole 9 Protrusion part 10 Rotating body 20 Electric power generating apparatus main body 21 Mounting stand 22 Upper stage windmill 23 Lower stage windmill 24 Holding member 25 Power take-out Gear 26 Output shaft 27 Flywheel 28 Speed control mechanism 29 Generator 30 Air motor 31 Clutch 32 Compressor 33 Air tank 34, 35, 36 Leg 37 Movable cylinder 38 Braking device

Claims (7)

A rotating body formed by coupling a pair of rotating plates with two or more rotating shafts standing vertically to the rotating plate at the same angle and the same distance from the center of the rotating plate; And two or more wind-receiving plates having a curved cross-sectional shape attached to each rotating shaft, and a rack with teeth attached in the circumferential direction of the rotating body on the outer surface side of each wind-receiving plate. The rotation shaft is provided with a pinion gear corresponding to the rack , and each wind receiving plate is developed and stored by the rotation of the rotation shaft by the rack and pinion mechanism. Windmill unit. 2. The wind turbine unit according to claim 1, wherein each of the wind receiving plates is fixed to the rotating shaft via a connecting plate, and each of the wind receiving plates is provided so as to be able to appear and retract from the rotating body according to the rotation of the rotating shaft. .   Each rotating shaft to which the wind receiving plate is fixed can be rotated in conjunction with the driving means, and each wind receiving plate is interlocked with the rotation of the rotating shaft and can be moved in and out of the rotating body synchronously. The wind turbine unit according to claim 2.   By rotating the rotating shaft in one direction, the wind receiving plate expands and spreads outside the rotating body, enlarges the wind receiving area, and by rotating the rotating shaft in the opposite direction, the wind receiving plate. 4 is housed so as to be wound inside the rotating body, and the wind receiving area is reduced or lost to cause the wind receiving plates to appear and disappear from the rotating body. Windmill unit.   The wind turbine unit according to any one of claims 1 to 4, wherein the rack and pinion mechanism is always meshed during rotation of the rotating shaft.   The windmill unit according to any one of claims 1 to 5, wherein the rack and pinion mechanism is provided so as not to overlap with another adjacent rack and pinion mechanism. A wind turbine generator using the wind turbine unit according to any one of claims 1 to 6.

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