WO2011140702A1

WO2011140702A1 - Double-layer reverse rotation combined horizontal movable-wing vertical-shaft wind turbine

Info

Publication number: WO2011140702A1
Application number: PCT/CN2010/072623
Authority: WO
Inventors: 王肇泰
Original assignee: Wang Zhaotai
Priority date: 2010-05-11
Filing date: 2010-05-11
Publication date: 2011-11-17

Abstract

Disclosed is a double-layer reverse rotation combined horizontal movable-wing vertical-shaft wind turbine which includes a main body (5), blades (39,40), a movable-wing linkage mechanism，a locating device(9,12), a limiting device, auxiliary limiting devices, an auxiliary starting device, a speed adjusting mechanism and a blade shaft. The movable-wing linkage mechanism, the locating device and the auxiliary starting device are arranged in the main body of the wind turbine; blades are arranged on the blade shaft; the speed adjusting mechanism is located between the blade shaft and linkage gears of the movable-wing linkage mechanism; the limiting device is mounted on the lateral wall of a linkage gear box; auxiliary limiting devices are mounted at the front ends of upper and lower blades and the tails of upper blades respectively. The wind turbine reduces the production cost, improves the utilization ratio of wind energy and prolongs the service life.

Description

Double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine

The present invention relates to a wind energy utilization apparatus, and more particularly to a double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine. Background technique

The development and utilization of wind energy has attracted increasing attention. In order to further improve the utilization of wind energy, vertical shaft wind turbines are undoubtedly a better model than horizontal axis wind turbines. Therefore, some people started to make vertical-axis wind turbines in the 1950s, and an American inventor also built a large vertical shaft wind machine with a diameter of 50 meters. However, although research on vertical-axis wind turbines has been going on for more than half a century, there has been no sudden progress. .

Combining all aspects of the information, the shortcomings of the currently known public vertical axis wind turbines are mainly -

1. Due to the influence of self-weight, the blade activity is not working. In order to reduce the weight of the blades, high-tech materials are used, which increases the cost;

2. Many active joints are exposed. In this way, it is not only difficult to guarantee lubrication, but also highly susceptible to rain, snow and dust;

3, infinite speed device, it is difficult to guarantee the life of the wind turbine in strong winds.

When the applicant searched the "vertical axis wind turbine" on the Internet, he saw that the "marine vertical shaft wind turbine generator" developed by a Japanese company had started trial operation on a cruise ship. This should be the most advanced. The model is gone. Because the applicant applied for a large number of domestic and foreign related materials before applying for the utility model patent of the new vertical shaft type active wing wind turbine in 2004, it is not difficult to analyze the working principle:

The analysis shows that if it is a vertical wing, it can be either suspended (the blade is at the top of the blade) or it can be a side shaft (the blade is away from the main shaft of the wind turbine). If it is suspended, it is necessary to use special materials for the blades (the smaller the specific gravity is, the better the rigidity is required), such as carbon fiber manufacturing, to ensure that the reverse wing can float when it is running. However, in this case, the manufacturing cost will be greatly increased; if it is a side shaft type, the wind turbine will not be able to return to the optimal standby state after each stop, and the lower end of the wing shaft is highly likely to accumulate dirt. Inevitably, it will cause poor operation. All in all, the aircraft did not completely jump out of the traditional mode of the various vertical wind turbines. Summary of the invention

The invention provides a double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine, which not only improves the efficiency of the wind machine, but also prolongs the service life of the wind turbine.

The invention relates to a double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine, which is mainly composed of a main body, a blade and the like, and is characterized in that: further comprises a movable wing linkage mechanism, a positioning device, a limiting device and an auxiliary starting device. The speed governing mechanism and the blade shaft; wherein the movable wing linkage mechanism, the positioning device and the auxiliary starting device are all disposed in the main body of the wind turbine, the blade is associated with the blade shaft, and the speed regulating device is located in the linkage gear of the blade shaft and the movable wing linkage mechanism The limiting device is mounted on the side wall of the linkage gear box, and the auxiliary limiting device is respectively installed at the front end of the upper and lower blades and the tail portion of the upper blade.

The main body is composed of two upper and lower supporting devices, and the supporting devices are all cylindrical and are associated with each other, and rotate around the same vertical axis, and the rotating directions are opposite.

Four sets of cantilever arms with supporting leaf shafts are arranged on the outer cylindrical surface of the supporting device, and the bearing bush is fitted with the bearing bush and the blade shaft, and the outer end of the cantilever is provided with a sealing ring matched with the blade shaft.

Each of the movable wing linkages adopts a double-layer reverse-rotating vertical-axis wind turbine with a horizontal combined movable wing, which is composed of two upper blade shafts, two lower blade shafts, four blades and two same pitch diameters. The interlocking gears of the same number of modules and intermeshing are combined, and the spokes of the pin and the blade shaft are fitted at both ends of the interlocking gear.

A linkage gear of the movable wing linkage mechanism vertically crosses between the upper and lower linkage gears of the other set of linkage mechanisms.

Fixing blocks are arranged at appropriate positions on the inner side wall of each gear box to limit the range of movement of the interlocking gears; at the same time, reinforcing ribs are installed at the inner and outer ends of each of the blades and protrude forward, and the lower ends of the upper blades are installed A "U" frame is used as an auxiliary limit device.

The spline of the speed governing mechanism is a helical spline and can be axially slidably engaged with the interlocking gear. ― the auxiliary starting device has a lever (6) mounted on the vertical axis of the wind vane of the upper wind turbine in the same direction as the wind vane arrow, and a profiled lever (7) is mounted on the upper end cover of the linked gear box, and at the same time, A vertical lever (10) is mounted on the upper wing shaft of the group of movable wings; a casing is mounted on the linkage gear box of the lower wind turbine, and the sleeve is also mounted with a lever (6) in the direction of the arrow of the wind vane, and passes through the bridge gear It is composed of various components associated with the vertical axis of the wind vane.

The upper interlocking gear of the wind turbine has two positioning slots. The present invention has the following significant advantages:

1. The wind turbine skillfully uses the principle of unstable balance. Under the premise of ensuring the strength, the weight of the blade itself is not considered at all, which reduces the production cost and improves the cost performance of the wind turbine;

2. The wind turbine can automatically return to the optimal standby state after each stop, which improves the efficiency;

3. The wind turbine adopts the simplest but most effective mechanical speed control device. It can be said that it can work in any level of wind except the wind in the up and down direction, which of course increases the life of the machine;

4. All the related components of the wind turbine are sealed, which can guarantee to work in any harsh environment;

5. The wind turbine is a double-layer reverse rotation type, which effectively solves the problem of torsion of the whole machine and reduces the requirements on the infrastructure and supporting devices;

6. Due to its structural characteristics, the wind turbine has only decided to be a low-speed machine, and this is precisely suitable for large and even super-large machines;

7. The wind turbine is designed in such a way that the whole machine can be laid flat, which is especially important for ships;

8. The structure of the whole machine is simple and reasonable, fully considering the processing technology and installation process, and is suitable for industrial production. DRAWINGS

1 is a schematic view showing the appearance of a double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine according to the present invention; FIG. 2 is a schematic view of a double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine according to the present invention; A schematic diagram of the unstable balance principle of a double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine;

4 is a schematic diagram showing the principle of mechanical speed regulation of a double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine according to the present invention; FIG. 5 is a schematic view showing the installation of a double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine linkage gear set according to the present invention;

Figure 6 is a schematic view showing the installation of each component in the double-phase reverse rotation combined horizontal movable wing vertical axis wind turbine linkage gear box of the present invention;

7 is a schematic diagram showing the working principle of the auxiliary starting device of the double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine according to the present invention;

Figure 8 is a side view of Figure 7;

9 is a perspective view of a double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine auxiliary starting device according to the present invention; 10 is a schematic view showing the working principle of a neutral shaft of a double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine lower-layer wind turbine auxiliary starting device according to the present invention;

11 is a schematic view showing the principle of positioning of a double-lens reverse rotation combined horizontal movable wing vertical axis wind turbine linkage gear according to the present invention;

Figure 12 is a cross-sectional view taken along line A-A of Figure 11;

Figure 13 is a schematic view showing the linkage of the blade axis of the double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine according to the present invention;

Figure 14 is a schematic view showing the power output of a double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine wind turbine according to the present invention;

In the figure: 1-wind direction vertical shaft, 2-sealing ring, 3-ball bearing, 4-upper support upper end cover, 5-tubular support body, 6------------- Rod, 8-linking gearbox upper end cap, 9-linking gear positioning pin, 10-straight lever mounted on the upper blade, 11-up linkage gear, 12-leaf locating pin, 13-down Linkage gear, 14-nut, 15-shield, 16-support cantilever, 17-upper shaft, 18-lower shaft, 19-bearing cover, 20-link gearbox, 21-up linkage Gear, 22-lower linkage gear, 23-wind gear to the lower end of the vertical shaft, 24-bridge gear, 25-lower wind turbine auxiliary starter gear upper end gear, 26-lower wind turbine auxiliary starter vertical shaft, 27-upper wind Power output shaft of the machine, linkage plate of 28-upper and lower blade shaft, 29-sliding bearing, 30-thrust bearing, 31-spring, 32-thrust bearing, cylindrical bracket of 33-wind turbine, power output of 34-lower wind turbine Shaft, main limit block in 35-link gearbox, limit of 36-lower blade Strong ribs, 37- upper blade limit ribs, 38 - upper blade tail limit frame, 39-upper blade, 40-lower blade, 41-lower wind turbine power output gear, 42-upper wind turbine power output gear , 43-Reversing gear, 44-Working machine power input wheel, 45-hinge, 46-activity base, 47-cam, 48- lever-locking shaft, 49-lever locking, 50-shaped lever Upper lever, 51-shaped lever lower lever, 52-torsion spring, 53-shaped lever boss. detailed description

The invention will be further illustrated and described below in conjunction with the drawings and specific embodiments.

1. Regarding the unstable balance: in the present invention, all of the two sets of combined wings of the upper and lower sides of each layer of the wind turbine can be equivalent to the simplified form shown in FIG. It can be seen from the figure that the blades A and C are on the same axis, forming an upper blade group, and the blades B and D are on the same axis to form a lower blade group. Two blade groups pass through the same pitch diameter and two of the same modulus The sector gears mesh with each other. At rest, it can be foreseen that the two blades are drooping due to their own weight, while the upper blade group is relatively close to the axial center of the blade, so the two blades A and C have to succumb to the state of the two blades B and D. Upturned state. It can also be seen from the figure that A and B, C and D respectively form two wings, and the two wings are in a forward 90° angle state when static. When the force comes from the right direction, the two blades of A and C are rapidly opened by the angle of 90° to be close to 180°. At the same time, the two blades of C and D are closed to the horizontal state by the angle of 90°.

2. Regarding the mechanical speed regulation: As shown in Fig. 4, it can be seen from the figure that the inner ends of the upper and lower leaf shafts are machined with spiral key grooves, but the spiral directions of the key grooves on the two shafts are opposite. In the installation direction shown in Fig. 1, the spiral keyway of the upper wind shaft of the upper wind turbine is left-handed, and the spiral keyway of the lower shaft is right-handed (the lower wind turbine is exactly opposite). It can be analyzed that when the speed of the wind turbine is too high, the centrifugal force of the blade overcomes the tension of the spring 31, so that when the blade slides axially outward, the upper blade naturally rotates clockwise. Of course, the lower blade rotates counterclockwise. The result of the rotation of the two blades is that the angle of the opening is made smaller, so that the area of the windfoil is also reduced, and the rotation speed is lowered.

3. Regarding the cooperation between the linkage gears and the power output shaft: Figures 5 and 6 are schematic views of this part. As can be seen from the figure, the wind direction indicator vertical shaft 1 of the upper wind turbine and the power output shaft 27 of the upper wind turbine have to pass through the linkage gear set, so the linkage gears will "give way" for them, although in general, both ends of the linkage gear are At the same time, the same direction, but in order to ensure the strength, it should be added to the hollow part of the vertical shaft. As to why the present invention does not increase the diameter of the interlocking gear, it is because the four wings of the wind turbine can be as close as possible to the same horizontal plane. The biggest benefit is not only that the whole machine looks more coordinated, but also greatly reduces the height of the whole machine, and of course increases the stability.

4. Regarding the auxiliary start: Fig. 7 is a schematic diagram of the auxiliary start principle, and Fig. 8 is a schematic view of the entity of this part. The upper lever 50 of the upper profiled lever of the profiled lever of Fig. 8 is the position of the wind turbine in the standby state. According to the blade mounting method shown in Fig. 1, the tangential movement trajectory of the lever 50 of the upper wind turbine is from right to left, and the directional vertical axis is basically stationary, so the roller 6 is also substantially stationary, thus, at 6 Under the action of the special-shaped lever, the upper lever 50 of the upper shaped lever moves the lever 10 to the left, and the result is that the upper shaft rotates. Due to the linkage of the linkage gear, the angle between the two blades is also from 90. °Open quickly.

The lower wind turbine of course also needs an auxiliary start, and the present invention solves this problem (see Fig. 9): the lower end of the wind direction vertical shaft is equipped with the gear 23, and at the same time, the lower end cover of the upper wind turbine is installed with the bridge gear 24, and the power output shaft of the upper wind turbine 27 is integrated with the lower end cover of the upper wind turbine. The upper end of the steel tube 26, 26 is mounted on the outside of the shaft 27, and the gear 25 is mounted. The gear 25 and the gear 23 have the same pitch diameter and are associated by the bridge gear 24. Analysis shows that In the case where the vertical shaft 1 does not rotate substantially, the rotation of the upper wind turbine only drives the bridge gear 24 to produce a planetary effect, and as a result of this effect, the gear 25 is kept synchronized with 23. In this way, we can install the same auxiliary starting device on the lower wind turbine as the upper wind turbine (of course the direction is reversed). In actual work, since the rotation directions of the upper and lower wind turbines are opposite, the auxiliary starting device also generates the same magnitude and opposite force during operation, which further ensures the stability of the wind vane pointing.

5. Regarding the positioning of the interlocking gear: Fig. 10 is an enlarged schematic view of this portion. As can be seen from the figure, the interlocking gear 11 has two positioning grooves. When the downwind wing is fully opened and the reverse wing is completely parallel, the front end of the lever type positioning device 47 is locked by the action of its own weight into the positioning groove of the interlocking gear 11 to lock the interlocking gear. In this way, when the downwind wing is turned too far into the wind direction, the wind is not enough to maintain its opening, and the wind wing is not enough to maintain the horizontal state, the original working state can be maintained, thereby reducing the resistance of the reverse wing.

However, if each time the auxiliary start lever 6 is passed, the downwind wing is forced to open to 180° (the reverse wing is also necessarily 0.), which is also not allowed: one case is if the wind turbine starts automatic speed regulation Then, the reverse wing will be closed early due to the action of the limit frame 38 at its tail. However, if the lever 6 continues to exert force on the profiled lever, it may cause irreparable damage; in other cases, when the wind speed is gradually slowed down and eventually stops, the wings cannot be restored to the optimal standby. status. Therefore, when the machine is equipped with a special-shaped lever, it is necessary to ensure that when the wind turbine is in the optimal standby state, the upper lever 50 of the upper-shaped lever of the special-shaped lever is not completely vertical, but has a certain rightward Tilt. When the inclination is 0° when the opposite wing is closed, the top end of the upper lever 50 of the upper shaped lever of the profiled lever is higher than the lever 6, and completely separated from 6 when the opening angle of the downwind has not reached 180°. quasi. According to this, we can know that the wind turbine's downwind wing is not completely opened by the auxiliary starting device to 180°. The auxiliary starting device can only ensure that the reverse wind wing becomes less than 180 when it becomes a quasi-wind wing. °, that is, the knife-type positioning device 49 has not yet fallen into the positioning groove of the interlocking gear 11, and then, it is opened by the wind to 180°. The advantage of this is that if the wind is gradually reduced and it is not enough to continue working, that is, when the machine is stopped, the whole machine will automatically return to the optimal standby state due to the unstable balance principle described above.

'Because the blade shaft and the linkage gear are associated with the positioning pin 12, the blade shaft is of course driven when the upper lever 50 of the profiled lever rotates. However, the front end of the lever type positioning device 49 of the linkage gear is not yet Lifting up, that is to say, the interlocking gear 11 is still locked, so that the interlocking gear is unlikely to produce a rotation, and forcing the force will inevitably have a bad result. In order to solve this problem, we have designed a lower lever 51 of a differently shaped shifting lever on the profiled lever 7 and associated with the boss 53 of the upper lever 50 of the profiled lever through the torsion spring 52, such that The lower lever 51 of the profiled lever and the upper lever of the profiled lever are in relative rotational relationship. Normally, the torsion spring 52 does not apply pressure to the lower lever 51 of the profiled lever. When the upper lever 50 of the upper shift lever of the profiled lever is rotated and the cam 47 has not pressed the rear end of the lever positioning device 49, the blade shaft is of course impossible to rotate due to the locking of the front end of the 49. At this time, the twist The spring 52, by its own deformation, causes the lower lever 51 of the profiled lever to be in a flexible association with the upper lever 50 of the upper profiled lever of the profiled lever. Once the cam 47 is depressed by the rear end of the 49, the locking of the interlocking gear is released, and the torsion applied by the torsion spring 52 on the lower lever 51 of the profiled lever immediately drives the straight lever 10 to rotate. As we have just said, the force exerted by the lever 6 on the profiled lever 7 is not sufficient to force the downwind wing to fully open at 180°, and this torque will help the wind wing to open further.

6. Leaf axis linkage: Figure 11 is a schematic view of this part. It can be seen from the figure that in order to ensure that the wind turbine is automatically adjusted and the axial movement of the blade is outward, the special-shaped lever is directly connected with the straight-type lever 10 on the blade shaft. We use a method of widening the sector gear, and the width should be guaranteed. The leaf axis moves to the outermost end and still maintains good engagement. The linkage piece 28 is a steel piece with holes at both ends, and the holes at both ends are respectively placed in the lock nuts of the upper and lower leaf shafts. The leaf shaft is still free to rotate due to its corresponding mating clearance with the associated lock nut. In this way, when the wind turbine is adjusted in speed, the difference of the displacement of the two blade shafts due to the different spring force of the spring 31 can be avoided, thereby ensuring the cooperation of the limiting ribs 36, 37 of the upper and lower blades.

7. Power Output Device: Figure 12 is a schematic of this part. As can be seen, the power input gear 44 of the working machine directly meshes with the power output gear 42 of the upper wind turbine, while the power output gear 41 of the lower wind turbine is associated with the gear 44 via the reverse gear 43. As for the principle, there is no need to be here.

The present invention will be further described with reference to the accompanying drawings and specific embodiments. Since the lower wind turbine has a slight difference between the gearbox end cover, the lower end cover of the wind turbine and the upper wind turbine, and the internal installation is also changed correspondingly due to the opposite rotation direction, the overall structure is identical, so there is no need to Here is a description.

When the wind is blown from the northeast (according to the marking rules on the map), the wind turbine begins to rotate clockwise (top view). However, the downwind wing may not be fully opened at this time, so that the component 50 on the profiled lever of the quasi-winding wing starts to contact the lever 6 on the vertical shaft 1, and rotates clockwise (tilt to the right) under the pressure of the lever 6. . When tilting to a certain angle (for example, 30°), the lever 6 is disengaged from the upper lever 50 of the upper shaped lever of the profiled lever, and thus the lever 6 is no longer passed through the profiled lever on the blade shaft. The lever 10 is pressed and the leaf shaft does not rotate further. However, if the wind reaches a certain level, then the downwind wing will fully open under the action of the wind, and as a result, the positioning groove on the linkage gear rotates to the highest point, and the lever type positioning device 49 The front end will fall into the positioning groove of the interlocking gear due to its own weight, and the interlocking gear will be locked. When the downwind wing becomes a quasi-reverse wing, its corresponding reverse wing also becomes a quasi-wind wing, and of course the process is repeated.

If the wind begins to increase, the speed of the wind turbine exceeds the limit, and the centrifugal force of the blade is greater than the spring force of the spring 31 on the blade shaft, which causes the blade to slide axially outward, as described above, because of the relationship of the spiral keyway on the blade axis, The downwind wing will no longer open to 180°. Then the speed of the wind turbine is reduced. Of course, there is also a possibility that if the wind is too large, due to the action of the rear wing limit frame, the 30° angle of the wind wing can not be reached, and the pressure of the lever 6 on the shaped lever is twisted. The spring 52 is eliminated to avoid damage to the wind turbine assisted starting device.

When the wind speed gradually decreases until it is reduced enough to maintain the wind turbine's rotation, it is of course impossible to continue to open the downwind wing with the wind wing opening 30° opening angle, that is, it cannot continue to lock the reverse wind wing horizontally. In this way, each wing remains in the best standby state during the final shutdown.

The power output part of the machine is to drive the power of the upper and lower wind turbines simultaneously to drive the same generator, and it is rigidly related. The purpose is clear, in order to ensure that the wind turbines of the upper and lower wind turbines can operate synchronously, so as to ensure that the entire tower does not have a poor torque. In addition, the blades in the drawing are clamped in the blade shaft. In order to ensure that the upper and lower blades in the same wing do not resist during operation, we deliberately place the upper and lower blades on the off-leaf. The position of the center of the shaft. If the blade is processed into a hyperbolic shape as needed, the upper and lower blades should also be placed in two vertical planes in the vertical state to prevent the blade from coming into contact with each other.

Here again, the biggest advantage of this machine compared with the traditional horizontal axis wind turbine is that it reduces the height of the whole machine and can adjust the speed of the whole process. From the analysis of the height advantage, we simply estimate that the machine has a wing length of 45 meters, a cantilever of 25 meters and a blade length of 20, compared to a horizontal axis wind turbine with a single wing length of 45 meters. For meters, the width of each blade is 1.5 meters to achieve the same energy conversion efficiency. That is to say, the height of the shaft center of the horizontal axis wind turbine must exceed the wing length, for example 45 meters, then the height of the center of the blade shaft must be higher than 45 meters; and the installation distance of two identical wind turbines must be greater than 90 In this case, the machine can be installed with two or even three units at a height of 45 meters, and the installation distance between the two machines is only slightly larger than 45 meters. In this way, of course, the efficiency of wind energy utilization is greatly improved. Therefore, it is more suitable for high-rise buildings and wind farms on high mountains; of course, the Japanese vertical wing vertical shaft machine mentioned above is also more suitable for ships; and this machine is the preferred model for wave power generation, used for wave power generation. Because the density of seawater is much greater than that of air, it is completely possible to eliminate the wind vane, and of course, the relatively complicated auxiliary starting device is omitted; for example, the wind can be installed. Install a fixing ring connecting the anchor chain to the target position, install the wind turbine upside down to the bottom of the buoy cylinder, install the generator into the buoy cylinder, and install the corresponding electrical equipment into the buoy cylinder. Then, the buoy cylinder is installed. Can be truly unattended. What's more remarkable is that this machine does not need to build a large reservoir like the traditional tidal power station. It doesn't have to be built in the deep water area. Because it is a vertical axis, the waves in any direction can drive the machine.

It is also to be noted that the present invention provides a limit frame 38 for the tail of the upper blade in order to enhance the protection of the blade. In fact, if the material strength of the blade is sufficient, the frame can be completely eliminated. The biggest advantage is that if the wind is too large, the wind turbine will over-close and form another open state when the wind turbine is over-speeding, which further slows down the wind turbine's rotation speed.

The working principle of the new component of the invention:

1. This application adds a linkage gear positioning device. When the wind turbine is operating normally, the positioning device of the present invention will lock its position when the opening angle of the downwind and the reverse wing reaches the limit, which is not present in the original invention. The analysis shows that when the downwind wing rotates at an angle of 45 degrees to the wind direction, the new downwind wing completely blocks the wind of the original wind wing, so that the angle of the original wind wing to keep expanding is completely dependent on the reverse wing. It is very difficult for the reverse wing to remain completely horizontal at this time. As a result, the wind turbine will automatically return to standby. In this way, it will inevitably affect the efficiency of the wind turbine. According to the present invention, since the positioning device is provided, the working state can be locked, that is, when the downwind blade is substantially not working, the forward and reverse wind wings remain in the original state. In this way, the original wind wing can also use the wind remaining after the new wind wing; while the reverse wing is still horizontal, and will never increase the resistance. This can greatly improve the efficiency of the wind turbine.

Second, because the upper and lower wind turbines are in relative motion, the original invention failed to set up an auxiliary starting device in the lower wind turbine. The invention subtly also provides an auxiliary starting device on the lower wind turbine through the bridge gear, which of course further improves the efficiency of the wind turbine.

The blades of the wind turbine are horizontal and consist of a set of upper and lower blades on the same vertical line, the interior being associated with a linkage gear. At the same time, the two sets of symmetrical wings are also associated by the linkage gear. Therefore, the natural sag of the two lower blades on the left and right sides forces the two upper blades to form a V shape, so that the two blades on the same side are formed. The "〈" or " 〉 " shape. However, this is an unstable balance. Once subjected to external forces, this transient is immediately destroyed. The downwind is rapidly opened more than 90°, while the reverse wing is closed less than 90°. As a result, the smooth and reverse wind wings form a poor torque, and the wind turbine begins to rotate. The unique place of the wind turbine is that the sliding gear is used between the linkage gear and the blade shaft. The spiral keyway on the blade shaft determines the angle at which the wind turbine is opened at different wind speeds, and this is the mechanical speed regulation of the machine. The key point - when the wind turbine exceeds the rated speed, the leaf The shaft slides naturally outward. Due to the relationship of the spiral keyway, the opening angle of the downwind wing gradually decreases from nearly 180°, which of course reduces the speed of the wind turbine, thus ensuring the service life of the wind turbine.

Description of the part name of the present invention:

Blade A blade as used in the present invention refers to a separate component that is mounted on a blade shaft and that is engaged by a sector gear to engage the upper (or lower) blade of the underlying wind turbine into a movable wing.

Wing A wing as used in the present invention refers to a group of blades in which a pair of upper and lower movable blades are associated with each other on the same side of a single-layer wind turbine.

The wing that works under the influence of the wind, we call it the wind wing.

The wing that corresponds to the downwind wing on the wind turbine, we call it the reverse wing.

Quasi-swing wing—When the wind turbine rotates, the angle between the axial direction of the blade of the reverse wing and the wind direction is zero. When it is about to become a wind wing, we call it the quasi-wind wing. The opposite is called the quasi-reverse wing.

It is apparent that the above-described embodiments of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. It is not necessary, and cannot be exhaustive, for all implementations. These obvious variations or modifications which are obvious to the spirit of the invention are still within the scope of the invention.

Claims

1. A double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine, which is mainly composed of a main body, a blade and the like, and is characterized by: a movable wing linkage mechanism, a positioning device, a limiting device, an auxiliary starting device, and a tuning The speed mechanism and the blade shaft; wherein the movable wing linkage mechanism, the positioning device and the auxiliary starting device are all disposed in the main body of the wind turbine, the blade is associated with the blade shaft, and the speed regulating device is located between the blade gear and the linkage gear of the movable wing linkage mechanism, The limiting device is mounted on the side wall of the linkage gear box, and the auxiliary limiting device is respectively installed at the front end of the upper and lower blades and the tail portion of the upper blade.

2 . The double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine according to claim 1 , wherein: the main body is composed of two upper and lower supporting devices, wherein the supporting devices are all cylindrical and are associated with each other. , rotates around the same vertical axis, and the direction of rotation is reversed.

3. The double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine according to claim 2, wherein: four sets of cantilever arms with supporting leaf shafts are arranged on the outer cylindrical surface of the supporting device, and the cantilever is mounted The bearing bush is slidably engaged with the blade shaft, and the outer end of the cantilever is provided with a sealing ring that cooperates with the blade shaft.

The double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine according to claim 1, wherein each of said movable wing linkage mechanisms adopts a double-layer reverse rotation vertical axis of a horizontal combined movable wing. The wind turbines are composed of two upper shafts, two lower shafts, four blades and two interlocking gears of the same pitch diameter, the same modulus and meshing with each other. Matches the spline of the leaf shaft.

The double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine according to claim 4, wherein one of the linkage gears of the movable wing linkage mechanism vertically crosses the upper and lower two linkage gears of the other group of linkage mechanisms between.

6. The double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine according to claim 1, wherein a limit block is installed at an appropriate position of an inner side wall of each gear box to limit the range of the interlocking gear. At the same time, the reinforcing ribs are installed at the inner and outer ends of each blade and protrude forward, and a "U" shaped frame is installed below the tail of the upper blade as an auxiliary limiting device.

7. The double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine according to claim 1, wherein: the spline of the speed governing mechanism is a helical spline, and is axially slidably engaged with the interlocking gear.

The double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine according to claim 1, wherein the auxiliary starting device has a vertical axis mounted on a wind direction indicator of the upper wind turbine and is dialed in the same direction as the wind direction arrow. a rod (6), and a profiled lever (7) is mounted on the upper end cover of the linkage gearbox, and a straight lever (10) is mounted on the upper blade shaft of each group of movable wings; the lower gear unit is mounted on the linkage gearbox The sleeve is also mounted with a shift lever (6) in the direction of the arrow of the wind vane and is associated with the vertical axis of the wind vane via the bridge gear.

The double-layer reverse rotation combined horizontal movable wing vertical axis wind turbine according to claim 1, wherein: the upper interlocking gear of the wind turbine has two positioning grooves.