Half-wind-shielding double-wind-facing wind power generation equipment

Abstract

The utility model provides half-wind-shielding double-wind-facing wind power generation equipment, which comprises a base, a wind power generation device, a wind power generation device and a wind power generation device, the generator is installed on the bottom plate, and a speed-increasing box is arranged in front of the generator in a transmission mode. The main rod is fixedly installed on the upper portion of the base and arranged in the middle, and the auxiliary rod is installed on the bottom plate and rotationally connected with the main rod. A wind shield is arranged at the lower half part of each wind wheel mechanism, each wind wheel mechanism comprises more than three fan blades, and a central shaft of each wind wheel mechanism is in transmission connection with a generator through a speed increasing box; the wind speed and direction sensor is installed on the main rod, and the active wind facing mechanism is installed on the bottom plate and the base and can adjust the windward angle of the wind shield and the fan blades according to data transmitted by the wind speed and direction sensor. The tail vane adjusting mechanism can drive the auxiliary rod to rotate under wind power driving, and the tail vane can be retracted and released. The rotary wind resistance of the lower portion of the fan blade can be reduced, the windward area is increased, the windward angle is adjusted, and therefore the wind power generation efficiency is greatly improved under the condition that the length of the fan blade is not increased.

Description

Technical Field

[0001] This utility model generally relates to the field of wind power generation, and more specifically, to a wind power generation device that partially blocks and adjusts its posture in real time. Background Technology

[0002] Currently, the large wind turbines on the market are mainly three-bladed horizontal axis wind turbines, including direct-drive, semi-direct-drive, and doubly-fed types. The problems they present include:

[0003] 1. Since the direction of the wind is perpendicular to the direction of the blades' rotation, it only captures a component of the wind force, which is inefficient and wastes a lot of wind energy.

[0004] 2. Currently, the high power output of single wind turbines means that the blades are getting longer and longer, some reaching over 100 meters in length. This results in a significant workload in design, manufacturing, transportation, and installation. During transport, vehicles have difficulty turning, and some drivers have accidentally scraped the blades across mountainsides, causing damage.

[0005] 3. The streamlined curved shape of the fan blades has high requirements for manufacturing design, resulting in high costs and slow production cycles.

[0006] 4. The slender tips of the leaves are more prone to breakage.

[0007] 5. In addition, the three blades need to achieve dynamic balance when rotating. If one blade has a problem, such as icing or partial breakage, the impeller will become unbalanced and unable to work properly.

[0008] Therefore, how to reduce wind resistance and increase the windward surface, thereby significantly improving wind power generation efficiency without increasing the blade length, is an urgent technical problem to be solved. Utility Model Content

[0009] One of the main objectives of this invention is to overcome at least one of the defects of the prior art and provide a semi-shaded, double-wind-facing wind power generation device that can reduce wind resistance, increase the windward surface, and thus significantly improve wind power generation efficiency without increasing the blade length.

[0010] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0011] According to one aspect of the present invention, a semi-shaded, double-wind-facing wind power generation device is provided, comprising:

[0012] The base is fixedly installed and connected to the base plate via a rotary bearing.

[0013] A generator is mounted on the base plate, and a speed-increasing gearbox is provided in the front drive of the generator.

[0014] The main rod and the auxiliary rod are fixedly installed on the upper part of the base and centrally located, and the auxiliary rod is installed on the base plate and rotatably connected to the main rod.

[0015] The wind turbine mechanism comprises two or more wind turbine mechanisms, all of which are arranged between the main rod and the auxiliary rod. The lower half of the wind turbine mechanism is provided with a wind baffle. Each wind turbine mechanism includes three or more wind blades. The central shaft of the wind turbine mechanism is connected to the generator through the speed increaser.

[0016] The wind direction adjustment system includes a wind speed and direction sensor, an active wind-aligning mechanism, and a tail rudder adjustment mechanism. The wind speed and direction sensor is mounted on the main rod, and the active wind-aligning mechanism is mounted on the base plate and the base plate, and can adjust the windward angle of the wind deflector and the wind vane according to the data transmitted by the wind speed and direction sensor. The tail rudder adjustment mechanism includes a tail fin and a tail boom. The tail fin is mounted on the tail boom, and the tail boom is connected to a secondary boom, which can drive the secondary boom to rotate under wind power. The tail fin can be retracted and extended.

[0017] According to one embodiment of the present invention, when the power generation equipment is in the power generation state, the wind turbine mechanism and the tail fin are on the leeward side, the wind deflector blocks the wind blades from facing the wind, and a ladder is provided on the side of the main rod away from the auxiliary rod.

[0018] According to one embodiment of the present invention, the main rod is in the shape of a stepped cylinder, with the cylinder diameter decreasing from bottom to top.

[0019] According to one embodiment of the present invention, the auxiliary rod and the main rod are connected by two horizontal plates. The two horizontal plates are installed at the step of the main rod by a horizontal plate bearing. The other end of the two horizontal plates is connected to the auxiliary rod, and the central shaft passes through the two horizontal plates.

[0020] According to one embodiment of the present invention, a windbreak beam parallel to the central axis is fixedly installed above the two horizontal plates, and a windbreak plate is fixedly connected to the windbreak beam. The windbreak plate is arc-shaped and covers the lower half of the wind turbine mechanism. The windbreak plate extends downward beyond the tip of the wind blade and upward beyond the center of the wind blade rotation.

[0021] According to one embodiment of the present invention, the end of the central shaft is connected to a sprocket, and each of the sprockets is connected in series from left to right via a transmission chain, with the end connected to the generator.

[0022] According to one embodiment of the present invention, the main rod and the tail rod are movably connected by a tail rudder bearing, and the tail fin is connected to the tail rod and rotates around the main rod with the tail rod.

[0023] According to one embodiment of the present invention, the tail boom is connected to the auxiliary rod through an adjustment mechanism so that the tail boom itself rotates to realize the extension and retraction of the tail fin.

[0024] According to one embodiment of the present invention, the active wind-fighting mechanism includes a wind-fighting motor, a drive gear, a gear ring, a rotary bearing, and a controller. The gear ring is installed on the outer side of the top of the base. The wind-fighting motor is connected to the drive gear and meshes with the gear ring. The rotary bearing is an integrated special structure capable of withstanding forces in both horizontal and vertical two-dimensional directions.

[0025] According to one embodiment of the present invention, the wind speed and direction sensor includes a wind speed sensor and a wind direction sensor, which are disposed on the top of the main rod. The controller is communicatively connected to the wind speed and direction sensor. When the measured wind speed exceeds the rated wind speed, the tail fin is retracted and the wind turbine mechanism rotates to a side-facing windward state.

[0026] As can be seen from the above technical solution, the advantages and positive effects of the semi-shaded, double-wind-facing wind power generation equipment of this utility model are as follows:

[0027] In this invention, by using a wind deflector to shield the lower part of the wind blades and adjusting the posture to allow the upper part of the wind blades to face the wind, the wind resistance of the lower part of the wind blades can be reduced, the windward area can be increased, and the windward angle can be adjusted, thereby significantly improving the wind power generation efficiency without increasing the length of the wind blades. Attached Figure Description

[0028] The various objectives, features, and advantages of this invention will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are merely illustrative of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0029] Figure 1 This is a schematic diagram of the main structure of the semi-shaded, double-wind-facing wind power generation device of this utility model.

[0030] Figure 2 This is a side view structural schematic diagram of the semi-shaded, double-wind-facing wind power generation device of this utility model.

[0031] Figure 3 This is a schematic diagram of part of the connection structure in the semi-shaded, double-wind-facing wind power generation equipment of this utility model.

[0032] Figure 4 yes Figure 1 A schematic diagram of the AA-direction structure.

[0033] Figure 5 This is a schematic diagram of the windbreak structure in the semi-shaded, double-wind-facing wind power generation equipment of this utility model.

[0034] Figure 6 This is a schematic diagram of the tail rudder adjustment mechanism in a semi-shaded, double-wind-facing wind power generation device of this utility model. Detailed Implementation

[0035] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0036] In the following description of various examples of the present invention, reference is made to the accompanying drawings, which form part of the present invention, and which illustrate by way of example different exemplary structures, systems, and steps that can implement various aspects of the present invention. It should be understood that other specific embodiments of the components, structures, exemplary devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of the present invention. Furthermore, although the terms “top,” “bottom,” “front,” “rear,” “side,” etc., may be used in this specification to describe various exemplary features and elements of the present invention, these terms are used herein only for convenience, such as the orientation according to the examples shown in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the present invention.

[0037] Figure 1 This is a schematic diagram of the main structure of the semi-shaded, double-wind-facing wind power generation device of this utility model.

[0038] Figure 2 This is a side view structural schematic diagram of the semi-shaded, double-wind-facing wind power generation device of this utility model.

[0039] Figure 3 This is a schematic diagram of part of the connection structure in the semi-shaded, double-wind-facing wind power generation equipment of this utility model.

[0040] Figure 4 yes Figure 1 A schematic diagram of the AA-direction structure.

[0041] Figure 5 This is a schematic diagram of the windbreak structure in the semi-shaded, double-wind-facing wind power generation equipment of this utility model.

[0042] Figure 6 This is a schematic diagram of the tail rudder adjustment mechanism in a semi-shaded, double-wind-facing wind power generation device of this utility model.

[0043] like Figures 1 to 6 As shown, the semi-shaded, double-wind-facing wind power generation device of this utility model is used for field wind power generation, including a base 1, a generator 2, a main pole 3 and an auxiliary pole 4, a wind turbine mechanism 5, and a wind direction adjustment system. The base 1 is fixedly installed and connected to a base plate 11 via a rotary bearing 12, allowing the base plate 11 to rotate relative to the base 1.

[0044] In this embodiment, the generator 2 is mounted on the base plate 11, and the front drive of the generator 2 is equipped with a speed increaser 21. The output speed of the speed increaser 21 is increased to the rated speed required by the generator 2.

[0045] In this embodiment, the main rod 3 is fixedly installed on the upper part of the base 1 and is centrally located. The secondary rod 4 is installed on the base plate 11 and is rotatably connected to the main rod 3. The secondary rod 4 can rotate together with the base plate 11, thereby changing its position relative to the main rod 3.

[0046] In this embodiment, there are two or more wind turbine mechanisms 5, all of which are set between the main rod 3 and the auxiliary rod 4. The lower half of the wind turbine mechanism 5 is provided with a wind baffle 51. Each wind turbine mechanism 5 includes three or more wind blades 53. The central shaft 52 of the wind turbine mechanism 5 is connected to the generator 2 through the speed increaser 21, so that the rotation of the wind blades 53 drives the central shaft 52 to rotate, and then drives the generator 2 to rotate and generate electricity.

[0047] In this embodiment, the wind direction adjustment system includes a wind speed and direction sensor 8, an active wind-fighting mechanism 6, and a tail rudder adjustment mechanism 7. The wind speed and direction sensor 8 is mounted on the main rod 3 to detect wind speed and direction. The active wind-fighting mechanism 6 is mounted on the base plate 11 and the base 1, and can adjust the windward angle of the wind deflector 51 and the wind vane 53 based on the data transmitted by the wind speed and direction sensor 8. The tail rudder adjustment mechanism 7 includes a tail fin 72 and a tail rod 71. The tail fin 72 is mounted on the tail rod 71, which is connected to a secondary rod 4. Under wind power, the tail rod 71 can rotate, allowing the tail fin 72 to extend and retract. When the wind speed reaches a set value, the tail rod 71 rotates, making the extended surface of the tail fin 72 parallel to the ground, thus putting it in a retracted state. In the normal state, the extended surface of the tail fin 72 is perpendicular to the ground, driving the secondary rod 4 against the wind, assisting the active wind-fighting mechanism 6 in adjusting the attitude of the wind turbine mechanism 5.

[0048] In this embodiment, when the power generation equipment is in power generation mode, the wind turbine mechanism 5 and the tail fin 72 are located on the leeward side because the mass on this side is larger, and the wind deflector 51 blocks the wind blades 53 from facing the wind. The windward direction is shown by arrow F in the figure. In addition, a ladder 9 is provided on the side of the main rod 3 away from the auxiliary rod 4.

[0049] In this embodiment, the main rod 3 is a stepped cylinder, with the cylinder diameter decreasing from bottom to top.

[0050] In this embodiment, the auxiliary rod 4 and the main rod 3 are connected by two horizontal plates 55. The two horizontal plates 55 are installed at the step of the main rod 3 via horizontal plate bearings 50. The other end of the two horizontal plates 55 is connected to the auxiliary rod 4, or can clamp the auxiliary rod 4. In addition, horizontal plate bearing seats 56 are installed on the two horizontal plates 55, and the central shaft 52 passes through the horizontal plate bearing seats 56. Fan blades 53 are symmetrically installed on both sides of the central shaft 52, and sprockets 22 are also installed on the central shaft 52 on both sides of each fan blade 53.

[0051] In this embodiment, a windbreak beam 54 is fixedly installed above the two horizontal plates 55. The windbreak beam 54 is parallel to the central axis 52, and a windbreak plate 51 is fixedly connected to the windbreak beam 54. In this embodiment, the windbreak plate 51 is arc-shaped, shielding the lower half of the wind turbine mechanism 5. The distance of the windbreak plate 51 extending downward beyond the tip of the wind blade 53 is equal to one-sixth to one-tenth, for example, one-ninth, of the radius of rotation of the wind blade 53. The distance of the windbreak plate 51 extending upward beyond the center of rotation of the wind blade 53 is equal to one-third to one-quarter of the radius of rotation of the wind blade 53. The rotation of the wind blade 53 is the maximum outer circle formed by the trajectory of the tip of the wind blade 53 when it rotates. The arc-shaped windbreak plate 51 can guide the airflow, reducing wind resistance on the one hand and increasing the wind density experienced by the wind blade 53 in the adjacent wind turbine mechanism 5 on the other.

[0052] In this embodiment, the end of the central shaft 52 is connected to a sprocket 22. Each sprocket 22 is connected in series from left to right via a transmission chain 23, and the end is connected to the generator 2 via a speed increaser 21. The sprockets 22 are connected in series via the transmission chain 23, and their movement up and down is alternating between left and right to avoid interference. In the last section, a sprocket 22 is set near the auxiliary rod 4 to facilitate transmission connection with the speed increaser 21.

[0053] In this embodiment, the main rod 3 and the tail rod 71 are movably connected via a tail rudder bearing 73. The tail fin 72 is connected to the tail rod 71 and rotates around the main rod 3 with the tail rod 71. During normal power generation, the tail fin 72 is driven by wind force, causing the tail rod 71 to rotate in a plane parallel to the horizontal plane. The tail rudder bearing 73 can also be used with a friction pair, which ensures the rotation of the tail rod 71 while preventing the tail rod 71 from disengaging from the bearing housing of the tail rudder bearing 73.

[0054] In this embodiment, the tail boom 71 is connected to the auxiliary rod 4 via the adjustment mechanism 74, causing the tail boom 71 to rotate to achieve the retraction and extension of the tail fin 72. When the wind force is too strong, in order to avoid damage to the deployed surface of the tail fin 72, the tail boom 71 is driven to rotate around the axis by the adjustment mechanism 74, and the tail fin 72 changes from vertical to horizontal, no longer affected by the wind force, thereby achieving the purpose of retraction. Conversely, the action is reversed to deploy the tail fin 72.

[0055] In this embodiment, the active wind-fighting mechanism 6 includes a wind turbine 61, a drive gear 62, a gear ring 63, a rotary bearing 12, and a controller (not shown in the figure). The gear ring 63 is mounted on the outer side of the top of the base 1, and the wind turbine 61 is driven by the drive gear 62, which meshes with the gear ring 63. The rotary bearing 12 is an integrated, specially designed structure capable of withstanding forces in both horizontal and vertical directions. When the wind turbine 61 operates, the meshing of the drive gear 62 and gear ring 63, along with the engagement of the rotary bearing 12, causes the base plate 11 to rotate relative to the base 1. This causes the auxiliary rod 4 to change position relative to the main rod 3, aligning the wind turbine blades 53 in the windmill mechanism 5 with the windward direction F.

[0056] In this embodiment, the wind speed and direction sensor 8 includes a wind speed sensor 82 and a wind direction sensor 81, both mounted on the top of the main rod 3 via a support base 83. The controller is communicatively connected to the wind speed and direction sensor 8. When the measured wind speed exceeds the rated wind speed, the tail fin 72 is retracted, and the wind turbine mechanism 5 rotates 90 degrees horizontally to a side-facing windward position to avoid wind-induced damage. When a change in wind direction is detected, the controller sends an action command to the wind turbine 61 to adjust the windward angle of the wind turbine mechanism 5. At this time, the tail fin 72 can assist in this position adjustment under the action of wind force.

[0057] As can be seen from the above technical solution, the advantages and positive effects of the semi-shaded, double-wind-facing wind power generation equipment of this utility model are as follows:

[0058] In this invention, the lower part of the wind blade 53 is blocked by the wind deflector 51, and the upper part of the wind blade 53 is made to face the wind by adjusting its posture. This can reduce the wind resistance of the lower part of the wind blade 53, increase the windward area, and adjust the windward angle, thereby greatly improving the wind power generation efficiency without increasing the length of the wind blade 53.

[0059] The wind power generation equipment of this utility model features a simple and easy-to-manufacture blade 53, made of lightweight materials such as fiberglass resin that are rust-resistant and corrosion-resistant. The absence of a long, thin blade structure also makes transportation very convenient and time-saving. During operation, the blade 53 faces the wind head-on, with a partially shielded structure, resulting in no headwind resistance on the return journey, good efficiency, and the ability to turn even in a light breeze. An active yaw mechanism is employed, along with an adaptive wind-following structure as auxiliary yaw, saving costs. The auxiliary rod 4 strengthens the overall structural strength and also assists in achieving the wind-following function of the turbine mechanism 5. Furthermore, the wind power generation capacity of this utility model can be proportionally increased by raising and widening the dimensions of the blades 53 in the turbine mechanism 5.

[0060] Those skilled in the art to which this utility model pertains should understand that the specific structures and processes shown in the above detailed embodiments are merely exemplary and not restrictive. Furthermore, those skilled in the art can combine the various technical features described above in various possible ways to form new technical solutions or make other modifications, all of which fall within the scope of this utility model.

Claims

1. A semi-shaded, double-wind-facing wind power generation device, characterized in that, include: The base is fixedly installed and connected to the base plate via a rotary bearing. A generator is mounted on the base plate, and a speed-increasing gearbox is provided in the front drive of the generator. The main rod and the auxiliary rod are fixedly installed on the upper part of the base and centrally located, and the auxiliary rod is installed on the base plate and rotatably connected to the main rod. The wind turbine mechanism comprises two or more wind turbine mechanisms, all of which are arranged between the main rod and the auxiliary rod. The lower half of the wind turbine mechanism is provided with a wind baffle. Each wind turbine mechanism includes three or more wind blades. The central shaft of the wind turbine mechanism is connected to the generator through the speed increaser. The wind direction adjustment system includes a wind speed and direction sensor, an active wind-aligning mechanism, and a tail rudder adjustment mechanism. The wind speed and direction sensor is mounted on the main rod, and the active wind-aligning mechanism is mounted on the base plate and the base plate, and can adjust the windward angle of the wind deflector and the wind vane according to the data transmitted by the wind speed and direction sensor. The tail rudder adjustment mechanism includes a tail fin and a tail boom. The tail fin is mounted on the tail boom, and the tail boom is connected to a secondary boom, which can drive the secondary boom to rotate under wind power. The tail fin can be retracted and extended.

2. The semi-shaded, double-wind-facing wind power generation equipment as described in claim 1, characterized in that, When the power generation equipment is in power generation mode, the wind turbine mechanism and the tail fin are on the leeward side, the wind deflector blocks the wind blades from facing the wind, and a ladder is provided on the side of the main rod away from the auxiliary rod.

3. The semi-shaded, double-wind-facing wind power generation equipment as described in claim 1, characterized in that, The main rod is a stepped cylinder, with the diameter decreasing from bottom to top.

4. The semi-shaded, double-wind-facing wind power generation equipment as described in claim 3, characterized in that, The auxiliary rod is connected to the main rod by two horizontal plates. The two horizontal plates are installed on the step of the main rod by horizontal plate bearings. The other end of the two horizontal plates is connected to the auxiliary rod. The central shaft passes through the two horizontal plates.

5. The semi-shaded, double-wind-facing wind power generation equipment as described in claim 4, characterized in that, A windbreak beam parallel to the central axis is fixedly installed above the two horizontal plates. The windbreak plate is fixedly connected to the windbreak beam. The windbreak plate is arc-shaped and covers the lower half of the wind turbine mechanism. The windbreak plate extends downward beyond the tip of the wind blade and upward beyond the center of the wind blade's rotation.

6. The semi-shaded, double-wind-facing wind power generation equipment as described in claim 1, characterized in that, The central shaft is connected to a sprocket at one end, and the sprockets are connected in series from left to right via a transmission chain, with the end connected to the generator.

7. The semi-shaded, double-wind-facing wind power generation equipment as described in claim 1, characterized in that, The main rod and the tail rod are movably connected by a tail rudder bearing, and the tail fin is connected to the tail rod and rotates around the main rod with the tail rod.

8. The semi-shaded, double-wind-facing wind power generation equipment as described in claim 7, characterized in that, The tail boom is connected to the auxiliary boom via an adjustment mechanism, which allows the tail boom to rotate, thereby enabling the extension and retraction of the tail fin.

9. The semi-shaded, double-wind-facing wind power generation equipment as described in claim 1, characterized in that, The active wind-fighting mechanism includes a wind turbine, a drive gear, a gear ring, a rotary bearing, and a controller. The gear ring is mounted on the outer side of the top of the base. The wind turbine is driven by the drive gear and meshes with the gear ring. The rotary bearing is an integrated, specially designed structure capable of withstanding forces in both horizontal and vertical two-dimensional directions.

10. The semi-shaded, double-wind-facing wind power generation equipment as described in claim 9, characterized in that, The wind speed and direction sensor includes a wind speed sensor and a wind direction sensor, which are installed on the top of the main rod. The controller is communicatively connected to the wind speed and direction sensor. When the measured wind speed exceeds the rated wind speed, the tail fin is retracted and the wind turbine mechanism rotates to a side-facing windward position.

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