JP2006291868A - Windmill supporting frame unit as well as vertical main shaft connecting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a windmill supporting frame unit having improved transportability, assembling efficiency and productivity for supporting the vertical main shaft of a wind power generater windmill having vanes arranged in multistages. <P>SOLUTION: The windmill supporting frame unit for supporting the vertical main shaft of the windmill comprises a combination of base frames and short columns. The base frame have column fixing portions formed at desired spaces, and the short columns are connected to the column fixing portions, respectively. The plurality of base frames laminated in the vertical direction and the plurality of short columns connecting the upper and lower base frames are constructed in one set. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wind turbine support frame unit and a method for connecting a vertical main shaft, and in particular, a frame body for supporting a vertical main shaft in which blades of a wind turbine for a wind power generator are arranged in multiple stages, The present invention relates to a wind turbine support frame unit excellent in assembly and productivity, and a method of connecting a vertical main shaft to be incorporated therein.

  Conventionally, a vertical wind turbine has a plurality of blades arranged around one vertical axis. On the other hand, the inventor has developed a windmill (Japanese Patent Application No. 2003-433854) in which blades are arranged in multiple stages on one long vertical main shaft. In this method, a plurality of long columns are framed by bars arranged in a step shape, and a vertical main shaft is rotatably disposed in the center.

In the multistage impeller wind turbine, for example, if the impeller has a height of 2 m and a four-stage impeller, at least 8 m of the support is required. It takes a lot of labor to frame the struts that exceed 8m, and it also takes a lot of effort to transport them to mountains and rocky beaches. Furthermore, increasing the assembly accuracy also requires great effort.
In view of these points, an object of the present invention is to provide a support frame unit for a windmill that is excellent in transportability, can be easily assembled on site, and can be easily assembled.

  The present invention facilitates transport as a unit of a base frame and a support column. Also, because it is a unit, on-site assembly is easy. Further, since it is a unit, the assembly accuracy is high, and the longitudinal main shaft can be maintained with high accuracy. The specific contents of the invention are as follows.

  (1) A support frame body that supports the vertical main shaft of the windmill, and is composed of a combination of a base frame body and short struts, and the base frame body has column fixing portions formed at desired intervals, and each column fixing portion is A support frame body unit for a windmill, in which a plurality of base frames stacked in the vertical direction and a plurality of short columns supporting the upper and lower base frames are configured as a set, each having a structure in which short columns are connected and arranged. .

  (2) A support frame that supports the vertical main shaft of the windmill, comprising a combination of a base frame, a short column, and a short vertical main shaft, wherein the base frame has an intermediate frame disposed inside the outer frame, A bearing is arranged at the center of the outer frame body through an intermediate frame body, column fixing portions are formed on the base frame body at desired intervals, and a short column is connected to each column fixing portion. A wind turbine support frame unit comprising a plurality of base frames stacked in the vertical direction, a plurality of short struts connecting the upper and lower base frames, and a required number of short vertical spindles as a set.

  (3) The wind turbine support frame unit according to (2), wherein the short vertical main shaft is integrally fixed to a middle portion of a length of a fixed body that fixes a blade support arm.

  (4) In the set, a base that supports the entire support frame is set, and the base is assembled in a columnar shape, a cross shape, a triangular shape, or any other shape, and a column fixing portion of the base frame The support frame body unit for a windmill according to any one of (1) to (3), wherein a column fixing portion is formed at a position that matches the position.

  (5) The set of the windmill described in any one of (1) to (4), wherein a necessary number of transverse bodies connected between adjacent base frame bodies in the horizontal direction are set in the set. Support frame unit.

  (6) In the bearing, the short base shaft is fixed with the upper and lower ends protruding from the bearing, and a coupling body is mounted on the projecting tip of the short base shaft, and the tip of the short vertical main shaft is fitted to the coupling body. The windmill support frame unit according to (2), which is configured to be assembled.

  (7) A method of vertically connecting a plurality of short vertical spindles to a bearing arranged in multiple stages on a support frame, wherein the short vertical spindles arranged between the upper and lower bearings are: The upper part is protruded through the upper bearing, the lower part of the upper short vertical main shaft is joined to the upper part, the collar is fitted around the joint part, and is fastened and fixed to form one body. How to connect the main shaft.

The present invention has the following effects.
(1) Since the support frame body unit of the windmill of the invention described in claim 1 is composed of a combination of a base frame body and short struts and is configured as a set, it is excellent in conveyance and assembly. Because it is a short column, even a thick object can be easily transported and assembled.
In the field, one base frame body is arranged, a short column is erected on each column fixing part, another base frame body is disposed thereon, and another base frame body is disposed thereon via another short column. A base frame body can be disposed, and the base frame body can be easily disposed in multiple stages. A bearing can be disposed at the center of each base frame body, and can be disposed through the vertical main shaft, and at the same time, a blade can be disposed on the vertical main shaft.
Since the bearing and the column fixing portion are fixed to the base frame body, the assembly accuracy is high, and the assembly with high assembly accuracy can be performed in a short time in the field.
The member can be produced in standard, and can be sold as a set in a three-column set, a five-column set, or the like.

  (2) The wind turbine support frame unit according to the second aspect of the present invention is composed of a combination of a base frame, a short column, and a short vertical spindle, so that it can be easily transported and assembled on site. Excellent in properties. The arrangement of the short vertical main shaft and the arrangement of multistage blades on one vertical main shaft can be facilitated.

  (3) Since the fixed body is fixed to the short vertical main shaft of the wind turbine support frame unit of the invention described in claim 3, the blades are easily arranged in multiple stages simultaneously with the assembly to the support frame. It can be made. In addition, since a large number of fixing holes for the support arm are formed in the fixed body, a desired number such as 1 to 6 blades can be selectively disposed on site.

  (4) Since the support frame body unit of the windmill according to the invention described in claim 4 is set with the base body, the support frame body can be assembled immediately by arranging the base body at the site. The use of the platform significantly reduces the basic cost, and can be installed immediately and easily moved.

  (5) Since the support frame body unit of the windmill of the invention described in claim 5 is a set of cross bodies that connect the base frames in the horizontal direction, the blades are arranged in multiple stages, It can be connected infinitely in the horizontal direction.

  (6) Since the wind turbine of the invention described in claim 6 is provided with a coupling body for fitting the short vertical main shaft to the bearing portion of the base frame body, and the short vertical main shaft is a set. The short strut and the short vertical spindle can be easily assembled, and the base frame can be assembled in multiple layers in a short time.

  (7) According to the seventh aspect of the present invention, there is provided a short vertical main shaft coupling method in which the upper portion of the short vertical main shaft is protruded upward from the bearing, and the upper short vertical main shaft is overlaid on the upper portion. Since the vertical main shaft can be easily arranged on the support frame body in which a plurality of base frame bodies are arranged in multiple stages, in particular, the short vertical main shaft to which the fixed body for fixing the blade support arm is fixed. Can be easily arranged. It also has excellent maintainability such as replacement of bearings.

  A bearing is disposed inside the base frame body via an intermediate rail body, and a plurality of column fixing portions are formed on the base frame body. A set of a plurality of base frame bodies and a plurality of short struts arranged between the upper and lower base frame bodies.

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a base frame of a support frame unit of a wind turbine according to the present invention, and FIG. 2 is a front view thereof.
The support frame body unit (1) of the windmill includes a combination of a plurality of base frame bodies (2) and a plurality of short struts (3). The base frame (2) is a flat and rectangular outer frame (2a), and a plurality of middle frames (2b) are assembled inside the middle frame (2b) at the center of the outer frame (2a). The bearing (4) is disposed in the central portion of the bracket.

  The outer frame (2a) is welded using, for example, a square having a side length of 2 m, a frame member having a width of 12 cm and a height of 20 cm, using an H-shaped member, each tube member, and the like. At the four corners, for example, cylinders having a diameter of 8 cm are fixed so as to protrude 5 cm to 10 cm above and below the outer frame body (2a), respectively, thereby forming column fixing parts (2c).

  The middle crosspiece (2b) is arranged in a cross shape in a flat manner inside the outer frame (2a), and a fixing plate (5) is fixed above and below the central portion. A shaft hole (6) penetrating vertically is formed at the center of the upper and lower fixing plates (5), and a bearing (4) comprising a bearing is disposed. The outer end portion of the middle crosspiece (2b) is welded to the outer frame (2a).

As a result, the base frame body (2) can be standard-produced by a factory, has high dimensional accuracy, facilitates conveyance, and increases assembly accuracy.
The short strut (3) is, for example, a tubular body, and the length is set to, for example, 1 m to 3 m so as to match the height of the blade (8), and the upper and lower end portions thereof are the column fixing portions (2c). It is set to a thickness that allows external fitting.

  The base frame (2) configured as described above is transported to the site, and as shown in FIG. 3, it is disposed on the base (14) arranged on the foundation (G), and each column fixing portion The lower ends of the short struts (3) are fitted on (2c), respectively. Thereafter, the bolt (2d) is fastened and fixed to the column fixing portion (2c) from the outside of the short column (3).

After that, lift another base frame (2) with a crane, fit the lower end of each column fixing part (2c) to the upper end of the short column (3), and fix the column from the outside of the short column (3) Fasten the bolt (2d) to the part (2c).
Thereafter, another short column (3) is externally fitted and fixed to each column fixing portion (2c) protruding from the upper surface of the base frame (2).

After that, another base frame (2) is again lifted with a crane, and the column fixing part (2c) at the bottom of the base frame (2) is fitted into the upper part of each short column (3a) in the same manner as described above. And fix.
Thereafter, in the same manner, a plurality of base frames (2) are stacked through the short struts (3), and the vertical main shaft (7) is attached to each bearing (4) of the base frame (2) as the required number of steps are stacked. ).

  For each stage, when the blade (8) is fixed to the vertical main shaft (7) via the fixed body (9) and the support arm (10), a plurality of blades (multiple blades ( A vertical wind turbine (11) having 8) can be installed. In this case, the inclined portion (8a) of the blade (8) is disposed so as to be inclined toward the longitudinal main shaft (7). The code | symbol (12) in FIG. 3 is a generator, and if it produces | generates with rotation of a blade | wing (8), it will become a wind generator.

Although FIG. 3 shows a blade (8) having two stages, the base frame (2) is laminated in a three-stage, five-stage, etc. structure through a short column (3) to obtain a blade (8). ) Can be increased. Although not shown in FIG. 3, the braces are arranged obliquely between the upper and lower base frame bodies (2).
Thus, by combining the multi-stage impeller wind turbine with the base frame (2) and the short strut (3), the high-rise vertical wind turbine (11) can be easily assembled.

  If one side of the base frame (2) is 2 m, the rotation radius of the blade (8) can be arranged up to about 80 cm. If the rotation radius of the blade (8) is increased, the base frame (2) having a larger size is used accordingly. Since the blades (8) are arranged in multiple stages on one longitudinal main shaft (7), the torque of the one-stage blade is multiplied by the number of stages. Therefore, in the case of a wind power generator, the power generation efficiency per installation area can be increased.

  FIG. 4 is a front view showing Example 2 of the base frame (2). The same parts as those in the previous example are denoted by the same reference numerals and description thereof is omitted. In Example 2, the column fixing portion (2c) is formed in a tubular shape. Therefore, the short column (3) to be erected on the column fixing portion (2c) has a rod column shape, or a rod housing (3a) that can be fitted to the column fixing portion (2c) at the tip as a tubular body. ) Is used.

FIG. 5 is a front view showing Example 3 of the base frame (2). The same parts as those in the previous example are denoted by the same reference numerals and description thereof is omitted. In the third embodiment, the vertical main shaft (7) is easily arranged.
In the figure, an intermediate frame (2b) is assembled at the center of the outer frame (2a), and a fixing plate (5) is fixed to the upper and lower portions of the center.

  A shaft hole (6) penetrating vertically is formed at the center of the upper and lower fixing plates (5), and a bearing (4) comprising a bearing is disposed. A short base shaft (4a) is disposed on the bearing (4) with its upper and lower ends protruding. A tubular combined body (4b) is fixed to the upper and lower ends of the short base shaft (4a). For the fixing method, keys and bolts are used. Reference numeral (4c) denotes a bearing cover.

  FIG. 6 is a front view of a short vertical main spindle of unit size. The length of the short vertical spindle (7a) is matched to the length of the short column (3). The upper and lower ends of the short vertical main shaft (7a) have a small diameter, and a fitting portion (7b) that can be fitted to the combined body (4b) is formed.

  In addition, a pair of upper and lower fixed bodies (9) are integrally fixed to the middle portion of the short vertical main shaft (7a). As shown in FIG. 3, the fixing member (9) has a plurality of mounting holes vertically extending so that the supporting arm (10) of the blade (8) can be fixed. Therefore, depending on the wind conditions at the site, whether one blade or six blades is sufficient can be changed by experiment.

  In the above configuration, after the base frame (2) is fixed on the base (14), the short strut (3) is fixed to each fixing portion (2c), and at the same time, the combined body of the bearing (4) ( In 4b), the fitting portion (7b) of the short longitudinal main shaft (7a) is fitted and erected.

  After that, another base frame (2) is disposed on each short column (3), and the upper portion of the short column (3) is fixed to the fixing part (2c), and the short vertical main shaft (7a) is fixed. The upper fitting part (7b) is fitted and fixed to the lower joined body (4b) of the base frame (2). Thereafter, the base frame (2) can be arranged in multiple stages in the same process, and the short vertical spindle (7a) can be easily assembled.

  As a result, the short longitudinal main shaft (7a) and the short base shaft (4a) of the bearing (4) are connected to one body to enable co-rotation. In addition, it is difficult to assemble the long vertical spindle (7), but this short vertical spindle (7a) facilitates assembly. Since the assembly accuracy of the base frame (2) is excellent, the accuracy between the upper and lower bearings (4) is also high, and even if the short vertical spindle (7a) is short, the multiple assembly accuracy is high .

FIG. 7 is a front view showing Example 4 of the base frame (2). The same parts as those in the previous example are denoted by the same reference numerals and description thereof is omitted. The base frame (2) has tubular column fixing portions (2c) formed at four corners of the outer frame (2a). In Example 4, the bearing (4) is a separate body as shown in FIG.
In FIG. 8, a bearing (4) is fitted at the center of the cradle (4a), and an intermediate beam (2b) is fixed to a mounting portion (4b) protruding to the periphery. In the state shown in FIG. 8, the middle frame (2b) is placed on the outer frame (2a) in FIG. 7, and the tip of the middle frame (2b) is bolted to the outer frame (2a).

This pedestal (4a) can be attached to the middle frame (2b) of different lengths, so that the length of the middle frame (2b) can be adjusted to the base frame (2) of different sizes. It can be applied by selecting.
Further, in FIG. 8, as indicated by phantom lines, the horizontal coupling portion (2g) can be formed in the horizontal direction of each column fixing portion (2c). By connecting a horizontal joint (not shown) similar to the outer frame material (2a) to the horizontal connecting portion (2g), the adjacent base frame (2) can be replaced with the horizontal joint (13) of FIG. Can be linked.

  FIG. 9 is a front view of the base frame (2) according to the fourth embodiment assembled. The platform (14) is horizontally arranged, and the short column (3a) is erected on each column fixing portion (2c). Another base frame (2) is disposed on the upper part of each short vertical spindle (7a). Another short column (3a) is erected on each column fixing portion (2c), and another base frame (2) is disposed thereon. By repeating this, the base frame (2) can be formed in multiple layers.

  FIG. 10 is a front view of the base frame body showing the fifth embodiment. The same parts as those in the previous example are denoted by the same reference numerals and description thereof is omitted. In Example 5, the column fixing part (2c) is formed in a flanged tubular shape. In this case, the short strut (3a) can also be easily erected by forming flanges (2h) adapted to the upper and lower ends. The horizontal connection portion (2g) can be connected in the same manner as the support column by forming the flange (2h).

  The base body (14) may be basically any object, but the base body (14) shown in FIG. 11 has the base material (14a) assembled in a grid pattern in a plane. As the base material (14a), for example, H-shaped steel, B-shaped steel, and the like, column fixing portions (14b) are formed at intersections.

  If the distance between the left and right column fixing portions (14b) is 2 m, for example, the outside protrudes outward by about 1 m. Therefore, by simply placing the base (14) with the ground flat, even if a plurality of short vertical spindles (3a) are stacked to form a high layer, as shown in FIG. It is easy to build and can be moved easily.

  Therefore, by simply stretching the support wire obliquely from the upper part of the support frame (1) to the ground, it is possible to easily and stably dispose it without making a large foundation. FIG. 12 shows the base material (14a) assembled into ten shapes. In addition, for example, it can be assembled in a triangular shape on a plane.

  FIG. 13 is a front view showing a method of arranging the short vertical main shaft (3a). As the short vertical main shaft (3a), for example, a tube column is selected. The fixed body (9) shown in FIG. 6 is also fixed to the short vertical main shaft (3a) in FIG. When the bearings (4) are arranged in multiple stages on the support frame body, the upper part of the short vertical main shaft (3a) is made to pass through the bearings (4) and slightly protrude. Thereafter, the upper portion of the other short vertical main shaft (3a) is passed through the upper bearing (4), and the lower portion of the shaft (4) is overlapped with the upper portion of the lower short vertical main shaft (3a).

  A split collar (3b) as shown in the figure is fitted around the joint between the upper and lower short vertical spindles (3a), screwed and tightened. In this case, the key (3c) is fitted to the joint portion of the upper and lower short vertical main shafts (3a) as necessary. By repeating this, a plurality of the short vertical main shafts (3a) can be combined into a single long vertical main shaft in a vertically long manner.

  Thus, the state shown in FIG. 8 is obtained after the support frame shown in FIG. 9 is assembled using the base frame (2), the base (14) and the short vertical main shaft (3a) shown in FIGS. Then, the bearing (4) is assembled to the base frame (2), and then the short vertical main shaft (3a) is assembled as shown in FIG. 13, and then the blade (8) is arranged as shown in FIG. If it arrange | positions, wind power generation can be started immediately.

  FIG. 14 is a plan view of the transverse body. This transverse body (13) is arranged between the base frame body (2) and the base frame body (2) when the base frame body (2) is juxtaposed in the plane direction, and is used for connecting each other. It is. Although it is almost the same as the shape of the base frame (2) shown in FIG. Further, there is no column fixing portion (2c), a connection hole (2e) penetrating in the horizontal direction is formed in the outer frame body (2a), and connection means (2d) such as a bolt is provided.

As shown in FIG. 15, the transverse body (13) configured as described above is interposed between a plurality of base frame bodies (2) and connected in a horizontal direction. In FIG. 15, a plurality of base frame bodies (2) are arranged in columns or rows so that the column fixing portions (2c) are at regular intervals.
After that, a transverse body (13) is arranged between adjacent base frame bodies (2), and connecting means (2f) such as bolts are fitted into the connection holes (2e), so that the base frame body (2) And the joint (13) are firmly connected.

  Thereafter, a short column is erected on each column fixing portion (2c), and the base frame (2) is connected to each short column. Thereafter, the relay body (13) is arranged between the base frame bodies (2), and the base frame body (2) and the relay body (13) are connected in the same manner as described above.

After the stacking of the base frame body (2) and the transverse body (13) is finished, the longitudinal main shaft (7) is disposed on each bearing (4) as shown in FIG. Each vertical main shaft (7) is provided with a blade (8) as shown in FIG.
In this way, the transverse body (13) is laminated by using the short strut (3a) disposed on the base frame (2), and the vertical main shaft (7) or the short vertical main shaft (7a) is used. A large number of vertical main shafts (7) or short vertical main shafts (7a) can be easily disposed in the horizontal direction.

  The horizontal joint (13) shown in FIG. 14 is provided with a bearing (4). However, when the vertical main shaft is not provided, the one without the bearing (4) is used. The planar shape can also be selected as appropriate, such as a square, a triangle, and a substantially fan shape. The transverse body (13) is excellent in assemblability when a plurality of base frame bodies (2) are connected in the horizontal direction, and can increase rigidity against earthquakes, typhoons and the like.

  In addition, this invention is not limited to the said Example, A design change can be suitably performed according to the objective. The planar shape of the base frame (2) can be arbitrarily formed such as a quadrangle, a triangle, a circle, or the like. The middle crosspiece (2b) can be arranged in the form of braces in the corner direction. Each part in each embodiment can be arbitrarily combined.

  This support frame unit is a set of base frame and support, so it is easy to transport the unit to the height to match the installation location, and it is excellent in assembling even in a narrow place Therefore, it is suitable for wind turbines for wind power generators.

It is a top view of the support frame body of the windmill which concerns on this invention. It is a front view of the base frame of the support frame body unit of the windmill which concerns on this invention. It is an assembly front view of the support frame of a windmill concerning the present invention. It is a front view of the base frame which shows 2nd Example which concerns on this invention. It is a front view of the base frame which shows the 3rd example concerning the present invention. It is a front view of the short length principal axis concerning the present invention. It is a top view of the base frame which shows the 4th example concerning the present invention. It is a top view of the middle frame of the base frame of the fourth embodiment of the present invention. It is a front view of the support frame which concerns on this invention. It is a front view of the base frame which shows 5th Example of this invention. It is a top view of the base concerning the present invention. It is a top view of the base which shows the 2nd example concerning the present invention. It is a front view which shows the arrangement | positioning state of the short length main spindle which concerns on this invention. It is a top view of the transverse body concerning the present invention. It is a top view which shows the connection state of the base frame which concerns on this invention, and a transverse body.

Explanation of symbols

(1) Support frame unit
(2) Base frame
(2a) Outer frame
(2b) Medium frame
(2c) Column fixing part
(2d) Bolt
(2e) Connecting hole
(2f) Connecting means
(2g) Connecting part
(2h) Flange
(3) Prop
(3a) Short strut
(4) Bearing
(4a) Short axis
(4b) Conjugate
(4c) Cover
(5) Fixed plate
(6) Shaft hole
(7) Vertical spindle
(7a) Short vertical spindle
(7b) Fitting part
(8) Feather
(8a) Inclined part
(9) Fixed body
(10) Support arm
(11) Vertical axis windmill
(12) Generator
(13) Transit
(14) Trapezoid
(14a) Substrate
(14b) Column fixing part

Claims (7)

A support frame that supports the vertical main shaft of a windmill, and is composed of a combination of a base frame and a short column. Column fixing portions are formed on the base frame at desired intervals, and each column fixing unit has a short column. And a plurality of base frames stacked in the vertical direction and a plurality of short struts connecting the upper and lower base frames as a set. unit. A support frame that supports a vertical main shaft of a windmill, comprising a combination of a base frame, a short column, and a short vertical main shaft. The base frame has an intermediate frame disposed inside the outer frame. Bearings are arranged in the center of the frame via intermediate bars, column fixing parts are formed on the base frame at desired intervals, and a short column is connected to each column fixing part. A windmill support frame unit comprising a plurality of base frame bodies stacked on each other, a plurality of short struts connecting upper and lower base frame bodies, and a required number of short vertical main shafts as a set. The wind turbine support frame unit according to claim 2, wherein a fixed body for fixing a blade support arm is integrally fixed to an intermediate portion of the short vertical main shaft. In the set, a base that supports the entire support frame is set, and the base is assembled in an arbitrary shape such as a cross-girder shape, a cross shape, a triangle shape, etc., at the position of the column fixing portion of the base frame body. The support frame body unit for a wind turbine according to any one of claims 1 to 3, wherein a column fixing portion is formed at a position to be fitted. The wind turbine support according to any one of claims 1 to 4, wherein the set includes a necessary number of horizontal joints connected between adjacent base frames in the horizontal direction. Frame unit. In the bearing, the short base shaft is fixed with the upper and lower ends protruding from the bearing, and a coupling body is attached to the projecting tip portion of the short base shaft, and the distal end portion of the short vertical main shaft is fitted to the coupling body, 3. The windmill support frame unit according to claim 2, wherein the windmill support frame unit is configured to be assembled. A method in which a plurality of short vertical main shafts are vertically connected to a bearing arranged in a plurality of stages on a support frame, wherein the short vertical main shaft arranged between the upper and lower bearings has an upper portion thereof. The upper bearing is protruded through the upper bearing, and the lower portion of the upper short vertical main shaft is joined to the upper bearing. The collar is fitted around the joint, and is fastened and fixed to form one body. To connect the short vertical spindle.

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