In general, a wind turbine is a device for obtaining electrical energy by using natural wind, and has a blade for rotating the shaft to receive the wind, the vertical wind turbine of Korea Patent No. 485494, freely rotates in the wind blowing direction It has a structure to improve the wind power generation efficiency by adjusting the rotation of the blade in proportion to the rotation angle displacement of the auxiliary blade to be aligned.
The vertical wind power generator, as shown in Figure 1, the generator 2 is connected to the lower end of the main shaft 1, a plurality of upper connecting shafts 3 and the lower radially from the main shaft (1) The connecting shaft 5 extends, and the blades 11 are respectively mounted between the upper connecting shaft 3 and the lower connecting shaft 5, and the blades 11 are provided through the wing front angle adjusting device 31. It has a structure connected to the auxiliary wing (7).
In the vertical wind generator having the configuration as described above, the auxiliary wing 7 is always aligned in a straight line in the direction of the wind blowing. Assuming that the wind blows in the X-axis direction, as shown in FIG. 2, the auxiliary wings 7 are always aligned in the X-axis direction, and the blade 11 is connected to the wing front angle adjuster 31. By the auxiliary wing 7 is arranged to have a constant angle in the wind portion direction and at the same time circumferential movement in the clockwise direction around the main shaft (1) by the wind.
That is, when the auxiliary blade (7) and the blade (11a) in the a position in the X-axis direction, and the blade is located in the b position in the circumferential motion (orbit), the auxiliary blade (7) to match the direction of the wind Rotates, and the blade 11b is inclined in the −45 ° direction with respect to the X axis by the wing front angle adjusting device 31 by the rotation angle of the auxiliary blade 7.
When the blade 11b further rotates about the main shaft 1 to reach the c position, the auxiliary wing 7 is rotated to coincide with the direction of the wind, so that the wing front angle adjusting device 31 is rotated. The angle of rotation of the blade 7 is transmitted to the blade 11c so that the blade 11c is rotated by -90 ° to be perpendicular to the direction of the wind, and the auxiliary wing 7 and the wing front angle adjusting device at the d position ( 31), the blade 11d is disposed at an angle of -125 ° with respect to the direction of the wind.
Therefore, by the blade front angle adjusting device 31 which transmits the angular rotation of the auxiliary blade 7 to the blade, the blade 11 always carries the wind and circumferentially moves in one direction with a large rotation moment. As the main shaft 1 rotates due to the circumferential motion, the generator 2 arranged at the lower end of the main shaft 1 is generated.
In the prior art, the blade front angle adjusting device 31, which allows the blade 11 to be disposed in front with respect to the wind blowing direction, as shown in FIG. ) Has a structure in which the upper shaft 35 having a mounting hole 33 and the lower shaft 41 are connected to the gear reducer 51 so that the gear reducer 51 can be mounted, and the gear reducer 51 has an upper shaft 35. The planetary gear 53 and the lower shaft 41 are mounted on the lower end of the planetary gear 53 to be engaged with the planetary gear 53 in a state of being connected to the planetary gear 53.
The upper shaft 35 and the planetary gear 53 are rotated by the angular rotation so that the auxiliary wing 7 is in line with the direction of the wind, and the sun gear 55 and the sun gear engaged with the planetary gear 53 are rotated. The lower shaft 41 connected to the 55 is interlocked to rotate, so that the blade 11 connected to the connecting member 17 mounted on the lower end of the lower shaft 41 rotates angularly.
In order to adjust the blade 11 so that the blade 11 is always disposed in front of the wind direction by the above operating principle, the circumferential motion and rotation ratio of the blade 11 is preferably 2: 1. In order to make the ratio of the circumferential motion and the rotation of the blade 11 to be 2: 1, the rotation ratio of the planetary gear 53 and the sun gear 55 of the gear reducer 51 can be kept constant 2: 1 in the same direction. Should be
Applying an internal gear structure consisting of a ring-shaped internal gear and an external gear that is rotated in engagement with the internal gear, the simple internal structure of one internal gear and one external gear makes the internal gear and the external gear inscribed. Since the external gears can be stably rotated in the same direction with each other, conventionally, an internal gear structure is applied to a large-capacity wind power generator to realize the rotation ratio as described above.
However, the internal gear has a higher manufacturing cost than the external gear due to its difficulty in processing and manufacturing. In the case of a small wind turbine, the rotation angle displacement and rotational force of the auxiliary blade can be stably transmitted to the blade side without applying the internal gear as described above. In addition, since wind power generation can be efficiently implemented, development of a structure that can be implemented at a lower cost is required.
The present invention devised to solve the problems as described above, the blade angle adjustment device of the wind turbine suitable for applying to a small capacity wind turbine can be implemented at a lower cost while being able to reliably transfer the rotational displacement of the auxiliary blade to the blade The purpose is to provide.
The present invention for achieving the object as described above, the auxiliary blade connecting shaft 110 is connected to the auxiliary blade is installed so that the blade is rotated in proportion to the rotation angle displacement of the auxiliary blade freely rotated in the wind blowing direction. In the blade angle adjusting device of the wind turbine having a rotational displacement transmission unit 200 for interconnecting the blade connecting shaft 120 is installed, the rotational displacement transmission unit 200, the auxiliary A first external gear 210 having a blade connecting shaft 110 as a rotating shaft and having gear teeth formed on an outer surface thereof; A second outer gear 220 having the blade connecting shaft 120 as a rotating shaft and having a gear tooth on an outer surface thereof, the second outer gear 220 being installed at a distance from the first outer gear 210; And the inner and outer portions of the outer surface portion where the gear teeth are formed are rotated in a fixed position in a state where the gears are connected to the first outer gear 210 and the second outer gear 220, respectively, and the rotation angle displacement of the first outer gear 210. Blade angle adjustment of the wind turbine, characterized in that it comprises a ;; the third external gear 230 for rotating the second external gear 220 in the same direction as the first external gear 210 in proportion to The device is a technical point.
Here, the first external gear 210, the second external gear 220, the same module, has a gear tooth ratio of 2: 1, at least 90 ° from the center of the third external gear 230 It is desirable to have a relative angle within 135 degrees.
The auxiliary wing connecting shaft 110 extends from the auxiliary wing side to the first external gear 210 and is installed at one end of the housing 300 covering the rotational displacement transmitting unit 200. An external extension 111 that is axially rotatably supported by the first-first bearing 411; And a second-first bearing protruding from the first external gear 210 toward the blade connecting shaft 120, positioned coaxially with the external extension 111, and installed in the housing 300. It is preferably configured to include; an internal extension 112 that is axially rotatably supported by the 421.
In addition, protruding from the central portion of the second external gear 220 to the auxiliary wing side, the first-second bearing 412 is installed on one end of the housing 300 to cover the rotational displacement transmission unit 200 An external extension portion 241 which is rotatably supported by the shaft, and extends from the second external gear 220 to the blade connecting shaft 120, and is coaxially located with the external extension portion 241; And a second gear connecting shaft 240 having an internal extension portion 242 that is rotatably supported by the second-2 bearing 422 installed in the housing 300 to be rotated in position. It is preferable to be.
The inner extension portion 242 of the second gear connecting shaft is installed inside the housing 300 covering the rotation displacement transmitting unit 200, and extends along the extending direction of the second gear connecting shaft 240. Preferably, the shaft is rotatably supported by a plurality of bearing members including the third bearing 430 spaced apart from the second-2 bearing 422.
In addition, by the first-third bearing 413 formed in one end of the housing 300 which protrudes from the central portion of the third gear 230 to the auxiliary wing side and covers the rotational displacement transmission unit 200. An external extension portion 131 rotatably supported in position and extending from the third gear 230 toward the blade connecting shaft 120 and positioned coaxially with the external extension portion 131. And a third gear connecting shaft 130 having an internal extension portion 132 that is rotatably supported in a rotational position by the second-third bearing 423 installed inside the housing 300. Do.
The external extension portions 111, 241, and 131 of the auxiliary wing connecting shaft, the second gear connecting shaft, and the third gear connecting shaft protruding from the first, second, and third gears 210, 220, and 230 to the auxiliary wing side. ), A first-first bearing 411 for supporting each of the auxiliary wing connecting shaft, the second gear connecting shaft, and the external extension parts 111, 241, and 131 of the third gear connecting shaft to be rotatable in position. It is preferably configured to include a; 1 to 2 bearing 412, the first shaft support plate 451 is formed with a plurality of bearing grooves (450a) that can be inserted into the 1-3 bearing (413).
In addition, the internal extension portion 112 of the auxiliary wing connecting shaft, the second gear connecting shaft, the third gear connecting shaft formed to protrude toward the blade connecting shaft 120 from the first, second, third gear (210, 220, 230). , 242, 132, and the second-first bearing for supporting the auxiliary wing connecting shaft, the second gear connecting shaft, and the inner extension portions 112, 242, and 132 of the third gear connecting shaft to be rotatable in position. And a second shaft support plate 452 having a plurality of bearing grooves 450a into which the second and second bearings 422 and 423 can be inserted and installed. .
In addition, the gear coupling coupling 510 is coaxially connected to the second external gear 220 and the blade coupling shaft 120 is coaxially rotatably connected and is elastic to the gear coupling coupling 510. The clutch unit is supported and the blade connection coupling 520 is provided to transfer the rotational displacement or rotational force of the second outer tooth 220 to the blade connecting shaft 120 by the connection with the gear coupling coupling 510. 500 is preferably configured to include.
In addition, the fork pivot shaft 620 is installed in the transverse direction perpendicular to the blade connecting shaft 120 in the housing 300 that covers the rotation displacement transmission unit 200; A coupling connecting arm portion 631 extending from the fork pivot shaft 620 to the blade coupling coupling 520 side of the clutch portion, and a coupling connecting arm portion 631 at the fork pivot shaft 620 side; A rotation fork 630 provided with a rotational force transmission arm 632 extending to have a relative angle; And a rotational force transmission arm portion 632 of the rotational fork such that the free end of the rotational force transmission arm 632 of the rotational fork is positioned on the same horizontal extension line as the fork pivotal shaft 620 by an externally transmitted pressure. Rotating force transmitting means 640 formed on the free end of the; is preferably configured to include.
And, the housing 300, the main body portion 310 to provide an inner space for covering the rotation displacement transmission unit 200; And a passage through which a wire member 641 for transmitting a pressing force for pivoting the pivoting fork 630 to the pivoting force transmission means 640 is capable of passing in the lateral direction, wherein the fork pivot 620 is provided. It is preferable that the configuration comprises a; connecting shaft 320 is formed in communication with the main body 310 of the housing on the same horizontal position line as the rotation fork (630).
According to the present invention according to the above configuration, one side and the other side of the third outer gear gears connected to the first outer gear connected to the auxiliary blade to the auxiliary wing connecting shaft and the second outer gear connected to the blade to the blade connecting shaft, respectively This structure has the effect of clearly and reliably transmitting the rotation angle displacement and rotational force of the auxiliary blade to the blade while stably decelerating and rotating the second external gear in the same direction as the first external gear.
In addition, the blade structure of the new wind turbine is more suitable to be applied to small capacity wind turbines because it can transmit the rotation angle displacement and rotational force of the auxiliary blade to the blade side reliably by the simple structure of three external gears. It is effective to present the angle adjuster structure.
Then, by freely pulling the wire member coupled to the rotational fork or the rotational force transmission means to the main shaft side, the free end portion of the rotational force transmission arm of the rotational fork extends in the same transverse direction as the fork rotational axis which is the rotational center axis of the rotational fork. Another effect that the rotation angle displacement of the rotational fork can be constantly adjusted so as to be located on the ship, and the detachable operation state of the clutch portion can be stably adjusted without changing the detachment degree of the clutch portion according to the degree of pulling the wire member. There is.
The blade angle adjusting device of the wind power generator according to the present invention having the configuration as described above will be described in more detail with reference to the following drawings.
Figure 4 is a longitudinal sectional view of the main portion showing a first embodiment of the blade angle adjusting device of the wind turbine according to the present invention, Figure 5 is a cross-sectional view taken along the line AA of Figure 4, Figure 6 is a rotating fork in the state shown in Figure 4 Is a longitudinal sectional view of the main portion showing an operating state in which the blade coupling coupling of the clutch unit is spaced apart from the gear coupling coupling, and FIG. 7 is a cross-sectional view taken along line BB of FIG.
8 is a plan perspective view and a longitudinal sectional longitudinal view of the housing, Figure 9 is a longitudinal sectional view of the main portion showing a plurality of bearing members installed in the blade angle adjusting device of the wind turbine according to the present invention, Figure 10 is a first shaft support stiffening plate Fig. 11 is a plan view and a longitudinal sectional view showing the first embodiment of the bearing accommodation portion, and Fig. 11 is a plan view and a longitudinal sectional view showing the first embodiment of the bearing cover portion of the first shaft support plate.
Blade angle adjusting device of the wind turbine according to the present invention, the auxiliary blade (7) so that the blade 11 is rotated in proportion to the rotation angle displacement of the auxiliary blade (7) that is freely rotated in the wind blowing direction. Regarding the blade angle adjusting device of the wind power generator having a rotational displacement transmission unit 200 for interconnecting the auxiliary blade connecting shaft 110 and the blade connecting shaft 120 to which the blade 11 is installed As shown in FIGS. 4 and 5, the rotation displacement transmitting unit 200 includes a first external gear 210, a second external gear 220, and a third external gear 230. .
The first external gear 210 has a shape of an external gear having gear teeth formed on an outer surface thereof with the auxiliary wing connecting shaft 110 as a rotating shaft, and the second external gear 220 has a gear tooth on an outer surface portion thereof. It is installed in the shape of the external gear provided with a spaced apart from the first external gear 210 and the blade connecting shaft 120 as a rotating shaft.
Like the first external gear 210 and the second external gear 220, the third external gear 230 has a shape of an external gear having gear teeth formed on the outer surface thereof, and the inner and outer parts of the outer surface part having the gear teeth formed therein. The second external gear 220 is proportional to the rotational angle displacement of the first external gear 210 while being rotated in the correct position while being connected to the first external gear 210 and the second external gear 220, respectively. ) Is rotated in the same direction as the first external gear 210.
In order to adjust the blade 11 so that it is always placed face to face with the direction of the wind as shown in FIG. 2, as described in the description of the background art, the revolution and rotation ratio of the blade 11 are 2: It is preferable that the rotational ratio of the first external gear 210 and the second external gear 220 is 2: in the same direction so that the blade 11 has a revolution and rotation ratio of 2: 1. 1 should be kept constant.
As described above, the first external gear 210 and the second external gear 220 are formed so that the rotation angle displacement between the first external gear 210 and the second external gear 220 is 2: 1. It is desirable to have the same module (gear diameter / gear number) and have a gear tooth ratio of 1: 2.
The third external gear 230 is applied to the diameter and the number of gear teeth that can stably transmit the rotation angle displacement and rotation force in consideration of the separation distance between the first external gear 210 and the second external gear 220, Since it is not necessary to increase the rotational force (torque) to the external gear 230 (no need to expand the diameter), it is formed to have a smaller diameter and the number of gear teeth than the first external gear 210. It is preferable to minimize the weight increase and the manufacturing cost according to the installation of the third external gear 230.
In fitting the first external gear 210 and the second external gear 220 to one side and the other side of the third external gear 230, respectively, the one side and the other side have the third external gear ( By having a relative angle of less than 135 ° from 90 ° or more from the center of the 230, both the first external gear 210 and the second external gear 220 is biased to one side of the third external gear 230 To prevent the connection, so that the pressure applied to the third external gear 230 can be stably distributed and applied, while being transmitted from the first external gear 210 to the second external gear 220. It is desirable to adjoin each other so as to minimize the consumption of rotational force that can be achieved.
The auxiliary wing connecting shaft 110 connected to the first external gear 210 has an external extension 111 extending from the auxiliary wing 7 side to the first external gear 210, and Protruding from the first external gear 210 toward the blade connecting shaft 120, and consists of an internal extension portion 112 which is coaxial with the external extension 111.
The external extension 111 of the auxiliary wing connecting shaft is axially supported in a rotatable position by a first-first bearing 411 installed at one end of the housing 300 which covers the rotational displacement transmitting unit 200. The internal extension part 112 of the auxiliary wing connecting shaft is rotatably supported in a rotatable position by the second-first bearing 421 installed inside the housing 300, and the auxiliary wing connecting shaft 110 and The first external gear 210 is fixed in linkage with the auxiliary blade 7 in a state of being firmly connected and supported in the axial direction by the first-first bearing 411 and the second-first bearing 421. Position will rotate.
The second gear connecting shaft 240, which is a rotation shaft of the second external gear 220, may have an external extension part 241 protruding from the center of the second external gear 220 toward the auxiliary wing 7. In addition, the second external gear 220 is formed to extend from the blade connecting shaft 120 side and consists of the internal extension portion 242 coaxially with the external extension portion 241.
The external extension part 241 of the second gear connecting shaft is axially supported in a rotatable position by the first-second bearing 412 installed at one end of the housing 300 covering the rotation displacement transmitting part 200. The inner extension portion 242 of the second gear connecting shaft is supported by the second-2 bearing 422 rotatably installed in the housing 300 to be rotatable in position, and the second gear connecting shaft 240 ) And the second external gear 220 is interlocked to the auxiliary blade (7) in a state of being firmly connected and supported in the axial direction by the 1-2 bearing 412, the second-2 bearing 422. To rotate in place.
The internal extension part 242 of the second gear connecting shaft may be supported by one bearing member corresponding to the second-2 bearing 422 as described above, but the rotation of the second external gear 220 may be performed. The second and second bearings 422 along the extension direction of the ring gear connecting shaft portion 242 in the housing 300 so that the angular displacement and rotational force can be more stably transmitted to the blade connecting shaft 120 side. It is also preferable that the shaft is rotatably supported by a plurality of bearing members including the third bearing 430 spaced apart from each other.
The third gear connecting shaft 130, which is the rotation shaft of the third external gear 230, includes an external extension part 131 protruding from the center of the third gear 230 toward the auxiliary wing 7, and The third gear 230 is formed to extend from the blade connecting shaft 120 to the inner extension portion 132 coaxially with the outer extension portion 131.
The external extension part 131 of the third gear connecting shaft is axially rotatably supported by a first bearing 413 installed at one end of the housing 300 covering the rotation displacement transmitting part 200. The internal extension part 132 of the third gear connecting shaft is supported by the second-third bearing 423 installed inside the housing 300 so as to be rotatable in position and the third gear connecting shaft 130. ) And the third external gear 230 is interlocked to the auxiliary blade (7) in a state of being firmly multiplexed and supported in the axial direction by the first and second bearings (413) and the second and third bearings (423). To rotate in place.
External extension portions 111, 241 of the auxiliary wing connecting shaft, the second gear connecting shaft, and the third gear connecting shaft protruding from the first, second, and third external gears 210, 220, and 230 toward the auxiliary wing 7. , 131 for supporting the rotatable position on the same cross-sectional line, the first shaft supporting plate 451 having a bearing accommodation portion 451a and a bearing cover portion 451b as shown in FIGS. 10 and 11. It is preferable to use.
In the bearing accommodation portion 451a of the first shaft support reinforcing plate, each of the auxiliary extension connecting shafts, the second gear connecting shafts, and the external extension parts 111, 241, and 131 of the third gear connecting shafts can be rotated in position. A plurality of bearing grooves 450a into which the first-first bearing 411, the first-second bearing 412, and the first-third bearing 413 can be installed, and the auxiliary wing connecting shaft and the second bearing 411; Holes through which the externally extending portions 111, 241 and 131 of the gear connecting shaft and the third gear connecting shaft are formed are formed.
In the bearing cover portion 451b of the first shaft reinforcing plate, the openings of the plurality of bearing grooves 450a formed in the bearing accommodation portion 451a of the first shaft reinforcing plate are closed, and the second and third external teeth are closed. Retaining groove 450a fixedly installed in the bearing accommodation portion 451a having a cross-sectional area and a shape capable of blocking the ends of the gears 220 and 230 from the outside, and configured to insert and install the first-first bearing 411. A hole through which the external extension 111 of the auxiliary wing connecting shaft is formed is formed at a position corresponding to the hole.
Internal extensions 112, 242 of the auxiliary wing connecting shaft, the second gear connecting shaft, and the third gear connecting shaft protruding from the first, second, and third gears 210, 220, and 230 toward the blade connecting shaft 120. , 132 in a rotatable position on the same cross section, each of the internal extensions 112, 242, 132 of the auxiliary wing connecting shaft, the second gear connecting shaft, and the third gear connecting shaft can rotate in position. A plurality of bearing grooves 450a capable of inserting and supporting the second-first bearing 421, the second-second bearing 422, and the second-third bearing 423, and supporting the lower end thereof, and the second gear. It is preferable to use the second shaft reinforcing plate 452 having a hole through which the internal extension portion 132 of the connecting shaft is formed.
In the first embodiment of the present invention, the gear coupling coupling 510 is coaxially connected to the second external gear 220 and the blade coupling shaft 120 is coaxially rotatably connected to the spring 610. It has a structure having a clutch portion 500 consisting of a blade coupling coupling 520 is elastically supported toward the gear coupling coupling (510) by).
The clutch unit 500 lifts and moves the blade coupling coupling 520 along the blade coupling shaft 120 and connects or spaces the ring coupling 220 to the gear coupling coupling 510. The rotational displacement of the rotational force to the rotational force of the blade connecting shaft 120 side or to implement the operation to stop.
As illustrated in FIG. 7, the clutch part is disposed at the fork pivot shaft 620 in the fork pivot shaft 620 which is installed in the housing 300 in the transverse direction perpendicular to the blade connecting shaft 120. Coupling connection arm portion 631 extending to the blade coupling coupling 520 side, and rotational force transmission arm portion extending to have a relative angle with the coupling connection arm portion 631 at the fork pivot shaft 620 side. Rotating fork 630 having a 632 is axially coupled.
Accordingly, in the state as shown in FIG. 4, by adjusting the pivoting force transmission arm 632 of the pivoting fork to the left, the coupling connection arm 631 of the pivoting fork is shown in FIG. 6. As shown, the clutch coupling blade 520 is lowered and separated from the gear coupling coupling 510, the transmission of the pressing force for rotating the rotational force transmission arm 632 of the pivoting fork to the left. When stopping, the blade coupling coupling 520 is automatically raised by the elastic restoring force of the spring 610 installed between the blade coupling coupling 520 and the spring support plate 611 and the gear coupling coupling 510. ) Is connected.
The rotational force transmission means 640 provided on the free end of the rotational force transmission arm 632 of the rotational fork, the fork is transmitted when the pressing force for rotating the rotational force transmission arm 632 of the rotational fork to the left. It is formed at a point that can be located on the same transverse extension line as the rotation shaft 620, the rotation fork, the wire member 641, link, arm member, etc. that are moved and deformed by the pressing force outside the housing 300 It is not limited to the specific structure and shape, including through-holes, grooves, protrusions, rings, bolting means, etc., as long as it can be restrained by 630 to transmit external pressing force to the rotation fork 630 side.
According to the related art shown in FIG. 3, the downward movement displacement of the lower coupling 65 is changed according to the displacement of the lower hole 74 formed in the coupling blocking fork 71. When the displacement is smaller than the reference value, the rotation angle displacement and the stop of transmission of the rotational force are not properly adjusted even when the weather changes in the strong wind, thereby damaging a large number of devices including the coupling blocking fork 71 and the upper hole 74. In the case where the displacement of the N-axis exceeds the reference value, the coupling blocking fork 71 is forcibly connected to the inner wall of the housing and the housing or the coupling blocking fork 71 may be damaged.
In addition, according to the related art, the difference between the moving copper wire at the end of the coupling blocking fork 71 having the lower hole 74 and the moving copper wire at the portion where the pin 72 is formed is remarkably accommodated. In consideration of solid binding between components and minimization of material consumption, the housing has a complex shape in which the inner space expands toward the end side of the coupling blocking fork 71 at the position where the coupling blocking fork 71 is formed.
As in the present invention, when the rotational force transmission means 640 is formed at a point that can be positioned on the same lateral extension line as the fork pivot shaft 620, it is not a narrow range corresponding to a reference value as before. Move and adjust the wire member 641 and the like over a wider range, which corresponds to a range that is greater than or equal to that of the fork pivot shaft 620 on the same transverse extension line as the fork pivot shaft 620. By doing so, the lifting movement of the blade coupling coupling 520 and the operation adjustment of the clutch unit 500 can be made more reliably.
And, on the main body portion 310 of the housing for providing an inner space for covering the rotation displacement transmission unit 200, the connecting shaft portion 320 for providing a passage that can pass through the wire member 641 In forming the connection, as shown in Figure 8, the connecting shaft 320 in the same horizontal position line with the fork pivot shaft 620 in a simple structure to form a communication with the main body 310 of the housing Implementable
According to the blade angle adjusting device of the wind power generator according to the present invention having the configuration as described above, the first external gear 210 and the blade 11 connected to the auxiliary wing (7) to the auxiliary wing connecting shaft (110). ) To the second external gear 220 connected to the blade connecting shaft 120, the second external gear 220 by a structure in which one side and the other side of the third external gear 230 are connected to each other. It is possible to clearly and reliably transmit the rotation angle displacement and rotational force of the auxiliary blade (7) to the blade (11) while decelerating and stably rotating in the same direction as the first external gear (210).
In addition, the present invention, the rotation of the auxiliary blade 7 by a simple structure consisting of three external gears corresponding to the first external gear 210, the second external gear 220, the third external gear 230. The angular displacement and rotational force can be reliably transmitted to the blade 11 side, and can be implemented at a lower cost, thereby providing a blade angle adjuster structure of a new wind turbine, which is more suitable for application to a small wind turbine.
In addition, by freely pulling the wire member 641 coupled to the rotational fork 630 to the rotational force transmission means 640 toward the main shaft 1 side, the rotational force transmission arm 632 of the rotational fork is free. The rotation angle displacement of the pivoting fork 630 can be constantly adjusted so that an end thereof is positioned on the same horizontal extension line as the fork pivoting shaft 620 which is the pivotal center of the pivoting fork 630, and the wire member According to the degree of pulling the 641, the detachable degree of the clutch unit 500 is not changed, it is possible to stably adjust the detachable operating state of the clutch unit 500.
The first-first bearing 411, the first-second bearing 412, the first-third bearing 413, the second-1 bearing 421, the second-2 bearing 422, the second-3 9, by a plurality of bearing members including a bearing 423, a third bearing 430, and a plurality of gear bearing members including the first shaft supporting plate 451 and the second shaft supporting plate 452. As described above, a plurality of shaft members including the auxiliary wing connecting shaft 110, the blade connecting shaft 120, the second gear connecting shaft 240, the third gear connecting shaft 130 in multiple directions along the axial direction By firmly supporting the shaft, it is also possible to implement a solid rotating shaft installation strength that can keep the above-described gear connection stable.
The present invention has been described with reference to preferred embodiments of the present invention, but the present invention is not limited to these embodiments, and the claims and detailed description of the present invention together with the embodiments in which the above embodiments are simply combined with existing known technologies. In the present invention, it can be seen that the technology that can be modified and used by those skilled in the art are naturally included in the technical scope of the present invention.
1-a perspective view illustrating the operation principle of a wind turbine to which the present invention is adopted
Figure 2-a plan view showing to explain the operating principle of the wind power generator is adopted
Figure 3-A longitudinal cross-sectional view showing the main part of the blade angle adjusting device of the wind power generator according to the prior art
Fig. 4-A longitudinal sectional view showing the main part of the first embodiment of the blade angle adjusting device of the wind power generator according to the present invention.
5-4 is a cross-sectional view taken along the line A-A
Fig. 6-Fig. 4 is a longitudinal sectional view of the main part showing an operating state in which the blade connecting coupling of the clutch unit is separated from the gear connecting coupling by rotating the rotating fork in the state shown in Figs.
7-6 is a cross-sectional view taken along the line B-B
8-Top perspective view and longitudinal section view of the housing
9-sectional view of the main part showing a plurality of bearing members installed in the blade angle adjusting device of the wind power generator according to the present invention;
10-a plan view and a longitudinal sectional view showing the first embodiment of the bearing accommodation portion of the first shaft support plate;
11 is a plan view and a longitudinal sectional view showing the first embodiment of the bearing cover part of the first shaft support plate;
<Description of Major Symbols Used in Drawings>
1: Main shaft 2: Generator
3: upper connecting shaft 5: lower connecting shaft
7: auxiliary wing 11: blade
31: wing front angle adjustment device
110: auxiliary wing connecting shaft 111: external extension of the auxiliary wing connecting shaft
112: internal extension of the auxiliary wing connecting shaft 120: blade connecting shaft
130: third gear connecting shaft 131: external extension of the third gear connecting shaft
132: internal extension of the third gear connecting shaft 200: rotation displacement transmission
210: first external gear 220: second external gear
230: third external gear 240: second gear connecting shaft
241: external extension of the second gear connecting shaft 242: internal extension of the second gear connecting shaft
300 housing 310 body part
320: connecting shaft portion 411: 1-1 bearing
412: 1-2 Bearing 413: 1-3 Bearing
421: 2-1 Bearing 422: 2-2 Bearing
423: second to third bearing 430: third bearing
450a: bearing groove 451: first shaft support plate
451a: bearing housing 451b: bearing cover
452: second shaft reinforcement plate 500: clutch portion
510: gear coupling coupling 520: blade coupling coupling
610: spring 620: fork pivot
630: pivoting fork 631: coupling connection arm
632: rotational force transmission arm 640: rotational force transmission means
641: wire member
