Small-sized wind driven generator capable of automatically adjusting fan angle

Abstract

The invention discloses a small wind driven generator with an automatic fan angle adjusting function, and relates to the technical field of wind driven generators, the small wind driven generator comprises a stand column, a cabin and an auxiliary positioning unit, and further comprises an angle adjusting unit, and the angle adjusting unit used for adjusting the inclination orientation angle of the cabin is fixedly installed between the stand column and the cabin. The angle adjusting unit comprises a bracket, a servo motor, a lead screw and a supporting arm, and the bracket is in a U shape and located at the top end of the stand column. According to the invention, the support arm can be lifted to cooperate with the rising or falling adjustment of one end of the cabin, and the two first hinge rods on the bracket can be rotatably matched with the other end of the cabin to tilt or fall, so that the fan main body can be flexibly adjusted to tilt or fall at different placement angles; the fan angle can be adjusted flexibly, simply and conveniently, meanwhile, the optimal wind power obtaining angle can be obtained through actual judgment in different installation areas, and energy efficiency obtaining is more efficient.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine generators, and in particular to a small wind turbine generator capable of automatically adjusting a fan angle. Background Art

[0002] With the improvement of environmental awareness and requirements, clean and renewable new energy power generation methods such as wind power generation and photovoltaic power generation have been vigorously developed and promoted. The working principle of wind turbines is: when the wind blows, the wind acts on the blades to drive the rotor blades to rotate. The blade mounting seat is directly connected to the rotating shaft of the generator, that is, the rotor blades directly drive the generator rotor to generate electricity. The current large-scale wind turbines are large in size, difficult to produce and install, and expensive (wind turbines with larger power generation capacity require millions or even tens of millions of units), and the site selection requirements are relatively stringent. Therefore, except for setting up large wind power stations in open areas with sufficient wind energy, it is difficult to truly achieve full popularization in other places, resulting in the difficulty of popularizing the use of wind power generation.

[0003] The publication (announcement) number is CN111472933A, which discloses a small wind turbine generator, including: a bearing foundation, arranged at the bottom of the small wind turbine generator; a support column, fixed vertically to the upper part of the bearing foundation; a power generation assembly, which includes a nacelle fixed to the top of the support column and capable of horizontal rotation, a stator fixed circumferentially to the inner wall of the nacelle, and a rotor rotatably arranged on the inner ring of the stator; and a head, the outside of which is fixed with a rotating shaft extending outward along its axial direction, the rotating shaft penetrates the nacelle and is fixedly connected with the rotor; the head includes a shell, a plurality of blades uniformly distributed circumferentially on the periphery of the shell, a transmission assembly connected to each blade and capable of uniformly adjusting the inclination angle of each blade, and a driving assembly capable of driving the transmission assembly to rotate. The small wind turbine generator of the present invention is easy to install, has no strict site selection requirements for the installation site, and can be directly used in daily life and popularized comprehensively.

[0004] Although the above scheme reduces the difficulty of site selection for installation of small wind turbines, after the equipment is fixed to the ground as a whole through the support column, the head shell with blades installed can only be fixed at a single placement angle that is perpendicular to the support column. The wind direction angle range that all blades are exposed to is limited. It is difficult to obtain the maximum wind power acquisition angle in different installation area environments by simply changing the blade inclination angle. The support column is assisted in installation and positioning by fixing rings, inclined cables and embedded parts. The overall storage is inconvenient, and the embedded parts are limited by the length of the inclined cables and the position of the fixing rings. Its fixed position relative to the support column is unchanged, making it difficult to flexibly avoid obstacles in the installation area. It is generally not suitable for installation sites. For this reason, we propose a small wind turbine with automatic adjustment of the fan angle. Summary of the Invention

[0005] The main object of the present invention is to provide a small wind turbine with automatically adjustable fan angle. Through the provided angle adjustment unit, the problem is solved that the nose housing equipped with blades can only be fixed at a single placement angle perpendicular to the support column, and the wind direction angle range contacted by all blades is limited. It is difficult to obtain the maximum wind power acquisition angle in different installation area environments by simply changing the blade inclination angle alone.

[0006] To solve the above technical problems, the present invention is realized through the following technical solutions: A small wind turbine with automatically adjustable fan angle, including a column, a nacelle and an auxiliary positioning unit, further including:

[0007] An angle adjustment unit for adjusting the tilt orientation angle of the nacelle is fixedly installed between the column and the nacelle.

[0008] The angle adjustment unit includes a bracket, a servo motor, a lead screw and a support arm. The bracket is in a "U" shape and is located at the top of the column. A first hinge rod is respectively hinged on the opposite side surfaces of the bracket. The nacelle is fixedly arranged at the end face of the first hinge rod and is located inside the bracket. An installation groove is opened at the top end inside the column. The servo motor is fixedly installed on the bottom groove wall of the installation groove. The lead screw is movably arranged in the installation groove and one end thereof is connected to the output end of the servo motor. One end of the bottom surface of the support arm is in threaded connection with the lead screw, and the other end of the support arm is connected to the outer wall of the nacelle. The support arm is in an "L" shape.

[0009] Preferably, the angle adjustment unit further includes a bearing box and a guide rod. There are two bearing boxes in total, which are symmetrically and fixedly arranged on the outer peripheral surface of the top end of the column. The internal space of the bearing box is communicated with the installation groove. The guide rod is fixedly arranged on the inner wall of the bearing box and movably penetrates through the support arm.

[0010] Preferably, the angle adjustment unit further includes a rotational speed sensor and a controller. The rotational speed sensor and the controller are both fixedly installed on the outer wall of the top surface of the nacelle. The rotational speed sensor is electrically connected to the controller, and the controller is electrically connected to the servo motor. The rotational speed sensor mainly detects the rotational speed of the rotor of the generator main body in the nacelle. The controller receives the rotational speed signal and controls the forward and reverse rotation of the servo motor.

[0011] Preferably, a strip-shaped through groove communicated with the installation groove is opened on the outer peripheral surface of the top end of the column, and the support arm is located inside the strip-shaped through groove.

[0012] Preferably, the auxiliary positioning unit includes a support plate and an extension column. A movable through hole is formed at the center of the top surface of the support plate, and the column movably penetrates through the movable through hole. A positioning groove in the shape of a "U" is formed on the outer wall of the support plate. A second hinge rod is hinged to each of the opposite side walls of the positioning groove. The extension column is fixedly arranged at the end face of the second hinge rod and is located inside the positioning groove. A strip-shaped notch is formed at one end of the extension column away from the second hinge rod.

[0013] Preferably, the auxiliary positioning unit further includes a positioning disc, a ground-inserting cone rod, and a turntable. Two third hinge rods are symmetrically hinged to the inner wall of one end of the strip-shaped notch away from the second hinge rod. The outer peripheral surface of the positioning disc is connected to the end face of the third hinge rod and is located inside the strip-shaped notch. The ground-inserting cone rod is threadedly connected to the center of the top surface of the positioning disc. The turntable is fixedly arranged at one end of the ground-inserting cone rod and is located outside the strip-shaped notch.

[0014] Preferably, there are three positioning grooves in total, which are distributed in an equidistant circumferential array, and the extension column, the positioning disc, the ground-inserting cone rod, and the turntable are arranged in one-to-one correspondence with the positioning grooves.

[0015] Preferably, a tray is fixedly arranged on the outer peripheral surface of the top end of the column. A support sleeve is movably sleeved on the top end of the column. The top surface of the support sleeve is fixedly connected to the bottom surface of the bracket. Mounting bolts are simultaneously threadedly connected to the bottom corners of the tray and the bottom corners of the support sleeve.

[0016] Preferably, a support foot is fixedly arranged at the bottom end of the column. A positioning through hole is formed on the top surface of the support foot.

[0017] Preferably, a generator main body is installed inside the engine room, and a rotating rod is installed on the rotor of the generator main body. One end of the rotating rod that extends out of the engine room movably is fixedly installed with a fan main body.

[0018] Compared with the prior art, the small wind turbine with automatically adjustable fan angle of the present invention has the following beneficial effects:

[0019] 1. In the present invention, by providing an angle adjustment unit, the support sleeve is docked with the column and the bracket is installed and fixed on the column with the help of the tray. The fan body rotates under the action of wind force and drives the rotor of the generator body in the cabin to rotate to cooperate with the power generation process. At the same time, the speed sensor can monitor the rotor speed of the generator body in the cabin in real time. The controller receives the speed signal to control the forward and reverse rotation of the servo motor. In the initial state, the "L"-shaped support arm is located in the middle of the screw rod. The cabin and the column rotate relative to each other. After the servo motor controls the forward and reverse rotation of the screw rod, the support arm threadedly connected to the screw rod can be lifted and lowered in the carrier box and on the strip-shaped through groove to cooperate. One end of the cabin is raised or lowered for adjustment, and the two first hinges hinged on the bracket can be rotated to cooperate with the other end of the cabin to tilt up or down, and the fan body can be flexibly adjusted to different placement angles of tilting up or tilting down. After the speed sensor measures and compares the rotor speed of the generator body at different angles, the servo motor can help the fan body adjust to the corresponding placement angle to obtain the maximum wind transmission effect. The guide rod arranged in the carrier box can guide the auxiliary support arm to rise and fall. The equipment can flexibly and easily adjust the fan angle and can actually judge the best wind acquisition angle in different installation areas, so that energy efficiency is more efficient.

[0020] The support plate can be slid up and down on the column to cooperate with the positioning through hole to carry out basic fixing and assembly of the column, and the support plate can be rotated and lifted on the column to cooperate with the extension column and the underground cone rod to expand and adjust. The rotation of the support plate can help the underground cone rod adjust the installation orientation to initially avoid obstacles. The extension column can adjust the placement angle by rotating the second hinge rod on the positioning groove to adjust the spacing between the underground cone rod and the column to further avoid obstacles. The turntable can rotate in the strip notch through the third hinge rod to cooperate with the underground cone rod to vertically align with the ground. The turntable is held and rotated, and the underground cone rod can be rotated and lowered on the turntable through the thread to be rotated and inserted deep into the ground. The column is then auxiliary positioned and fixed at multiple points, and the fixed position of the auxiliary positioning component of the equipment relative to the support column can be flexibly adjusted to avoid obstacles, which is more applicable to the installation site. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1This is a schematic diagram of the overall structure of a small wind turbine with automatic fan angle adjustment according to the present invention;

[0023] Figure 2 A schematic diagram of the structure of a small wind turbine with automatic fan angle adjustment according to the present invention;

[0024] Figure 3 For the present invention Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0025] Figure 4 For the present invention Figure 2 Schematic diagram of the cross-sectional structure at the middle BB;

[0026] Figure 5 For the present invention Figure 3 Schematic diagram of the cross-section structure at CC in the middle;

[0027] Figure 6 The present invention is a front view structural schematic diagram of a small wind turbine with automatic fan angle adjustment function.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Column;

[0030] 2. Engine room;

[0031] 3. Angle adjustment unit; 301. Bracket; 302. Servo motor; 303. Screw; 304. Support arm; 305. Carrying box; 306. Guide rod; 307. Speed ​​sensor; 308. Controller;

[0032] 4. Auxiliary positioning unit; 401. Support plate; 402. Extension column; 403. Positioning disc; 404. Ground cone rod; 405. Turntable;

[0033] 5. Pallet;

[0034] 6. Support sleeve;

[0035] 7. Legs

[0036] 8. Fan body. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Embodiment 1

[0041] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 shown, a small wind turbine with automatically adjustable fan angle includes a column 1, a nacelle 2 and an auxiliary positioning unit 4, and further includes:

[0042] An angle adjustment unit 3 for adjusting the tilt orientation angle of the nacelle 2 is fixedly installed between the column 1 and the nacelle 2.

[0043] The angle adjustment unit 3 includes a bracket 301, a servo motor 302, a lead screw 303 and an arm 304. The bracket 301 is in a "U" shape and is located at the top of the column 1. A first hinge rod is respectively hinged on the opposite two side surfaces of the bracket 301. The nacelle 2 is fixedly arranged on the end face of the first hinge rod and is located inside the bracket 301. An installation groove is opened at the top end inside the column 1. The servo motor 302 is fixedly installed on the bottom wall of the installation groove. The lead screw 303 is movably arranged in the installation groove and one end thereof is connected to the output end of the servo motor 302. One end of the bottom surface of the arm 304 is threadedly connected to the lead screw 303, and the other end of the arm 304 is connected to the outer wall of the nacelle 2.

[0044] The angle adjustment unit 3 further includes a carrier box 305 and a guide rod 306. There are two carrier boxes 305 in total, which are symmetrically and fixedly arranged on the outer peripheral surface of the top end of the column 1. The internal space of the carrier box 305 is communicated with the installation groove. The guide rod 306 is fixedly arranged on the inner wall of the carrier box 305 and movably penetrates through the support arm 304.

[0045] The angle adjustment unit 3 further includes a rotational speed sensor 307 and a controller 308. The rotational speed sensor 307 and the controller 308 are both fixedly installed on the outer wall of the top surface of the nacelle 2.

[0046] A strip-shaped through groove communicating with the installation groove is provided on the outer peripheral surface of the top end of the column 1, and the support arm 304 is located inside the strip-shaped through groove.

[0047] Through the angle adjustment unit 3, the equipment can flexibly and simply adjust the fan angle, and actually judge and obtain the best wind power acquisition angle in different installation areas, so that the energy efficiency acquisition is more efficient.

[0048] Embodiment 2

[0049] As Figure 1 、 Figure 4 、 Figure 5 And Figure 6 As shown, a small wind turbine with an automatically adjustable fan angle includes a column 1, a nacelle 2 and an auxiliary positioning unit 4, and further includes:

[0050] An angle adjustment unit 3 for adjusting the tilt orientation angle of the nacelle 2 is fixedly installed between the column 1 and the nacelle 2.

[0051] The angle adjustment unit 3 includes a bracket 301, a servo motor 302, a lead screw 303 and a support arm 304. The bracket 301 is in a "U" shape and is located at the top end of the column 1. A first hinge rod is respectively hinged on the opposite two side surfaces of the bracket 301. The nacelle 2 is fixedly arranged at the end face of the first hinge rod and is located inside the bracket 301. An installation groove is provided at the top end inside the column 1. The servo motor 302 is fixedly installed on the bottom wall of the installation groove. The lead screw 303 is movably arranged in the installation groove and one end of it is connected to the output end of the servo motor 302. One end of the bottom surface of the support arm 304 is threadedly connected to the lead screw 303, and the other end of the support arm 304 is connected to the outer wall of the nacelle 2;

[0052] The auxiliary positioning unit 4 includes a support plate 401 and an extension column 402. A movable through hole is provided at the center of the top surface of the support plate 401. The column 1 movably penetrates through the movable through hole. A "U" shaped positioning groove is provided on the outer wall of the support plate 401. A second hinge rod is respectively hinged on the opposite two side walls of the positioning groove. The extension column 402 is fixedly arranged at the end face of the second hinge rod and is located inside the positioning groove. A strip-shaped notch is provided at the end of the extension column 402 far away from the second hinge rod.

[0053] The auxiliary positioning unit 4 also includes a positioning disc 403, an underground cone rod 404 and a turntable 405. Two third hinge rods are symmetrically hinged on the inner wall of one end of the strip notch away from the second hinge rod. The outer peripheral surface of the positioning disc 403 is connected to the end surface of the third hinge rod and is located on the inner side of the strip notch. The underground cone rod 404 is connected to the center of the top surface of the positioning disc 403 by threads. The turntable 405 is fixedly arranged at one end of the underground cone rod 404 and is located on the outside of the strip notch.

[0054] There are three positioning grooves in total and they are distributed in an equidistant circular array. The extension column 402, the positioning disc 403, the underground cone rod 404 and the rotating disc 405 are arranged in a one-to-one correspondence with the positioning grooves.

[0055] A tray 5 is fixedly arranged on the outer peripheral surface of the top end of the column 1, and a support sleeve 6 is movably sleeved on the top end of the column 1. The top surface of the support sleeve 6 is fixedly connected to the bottom surface of the bracket 301, and the bottom corners of the tray 5 and the bottom corners of the support sleeve 6 are simultaneously threadedly connected with mounting bolts.

[0056] A support leg 7 is fixedly provided at the bottom end of the column 1 , and a positioning through hole is provided on the top surface of the support leg 7 .

[0057] A generator body is installed inside the nacelle 2 , and a rotating rod is installed on the rotor of the generator body. A fan body 8 is fixedly installed on one end of the rotating rod that is movably extended to the outside of the nacelle 2 .

[0058] The auxiliary positioning unit 4 enables the fixed position of the auxiliary positioning component of the equipment relative to the support column to be flexibly adjusted to avoid obstacles, which makes it more applicable to the installation site.

[0059] The following is the working principle of the present invention:

[0060] After the support sleeve 6 is docked with the column 1 and the bracket 301 is installed and fixed on the column 1 with the help of the tray 5, the fan body 8 rotates under the action of wind force, driving the rotor of the generator body in the cabin 2 to rotate to cooperate with the power generation process. At the same time, the speed sensor 307 detects the rotor speed of the generator body in the cabin 2 in real time, and the controller 308 receives the speed signal to control the servo motor 302 to rotate forward and reverse. In the initial state, the support arm 304 is located in the middle of the screw rod 303, the cabin 2 and the column 1 rotate relative to each other, and the servo motor 302 controls the screw rod 303 to rotate forward and reverse. After the reverse rotation, the support arm 304 threadedly connected with the screw rod 303 is lifted and lowered in the carrier box 305 and on the strip-shaped through groove to coordinate with the raising or lowering adjustment of one end of the cabin 2, and the two first hinge rods hinged on the bracket 301 rotate to coordinate with the other end of the cabin 2 to tilt up or tilt down, and the fan body 8 is flexibly adjusted to different placement angles of tilting up or tilting down. After the speed sensor 307 measures and compares the rotor speed of the generator body at different angles, the servo motor 302 can help the fan body 8 to adjust to the corresponding placement angle to obtain the maximum The wind transmission effect is achieved by the guide rod 306 arranged in the carrier box 305 to guide the auxiliary support arm 304 to rise and fall. When the equipment is transported, the extension column 402 is rotated and retracted with the second hinge rod and placed parallel to the column 1. The underground cone rod 404 is rotated and retracted into the strip-shaped gap on the column 1 to completely reduce the occupied space. The overall storage and transportation of the equipment is convenient. After the support foot 7 at the bottom of the column 1 cooperates with the positioning through hole to fix the column 1 on the basis, the support plate 401 slides and rises on the column 1 to cooperate with the extension column 402 and the underground cone rod 404 to expand and adjust, and the support plate The rotation of 401 can help the underground cone rod 404 to adjust the installation direction to initially avoid obstacles. The extension column 402 can adjust the placement angle by rotating the second hinge rod on the positioning groove to adjust the distance between the underground cone rod 404 and the column 1 to further avoid obstacles. The turntable 405 rotates in the strip notch through the third hinge rod to cooperate with the underground cone rod 404 to vertically align with the bottom surface. The turntable 405 is held and rotated, and the underground cone rod 404 rotates and descends on the turntable 405 through the thread to be rotated and inserted deep into the ground, and the column 1 is then assisted in multi-point positioning and fixation.

[0061] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A small wind turbine with automatic fan angle adjustment, comprising a column (1), a nacelle (2) and an auxiliary positioning unit (4), characterized in that: Further comprising: An angle adjustment unit (3) for adjusting the tilt orientation angle of the nacelle (2), the angle adjustment unit (3) is fixedly installed between the column (1) and the nacelle (2); The angle adjustment unit (3) includes a bracket (301), a servo motor (302), a lead screw (303) and a support arm (304). The bracket (301) is in a "U" shape and is located at the top of the column (1). A first hinge rod is hinged on each of the opposite side surfaces of the bracket (301). The nacelle (2) is fixedly arranged at the end face of the first hinge rod and is located inside the bracket (301). An installation groove is opened at the inner top end of the column (1). The servo motor (302) is fixedly installed on the bottom groove wall of the installation groove. The lead screw (303) is movably arranged in the installation groove and one end thereof is connected to the output end of the servo motor (302). One end of the bottom surface of the support arm (304) is threadedly connected to the lead screw (303), and the other end of the support arm (304) is connected to the outer wall of the nacelle (2).

2. A small wind turbine with automatic fan angle adjustment according to claim 1, characterized in that: The angle adjustment unit (3) further includes a bearing box (305) and a guide rod (306). There are two bearing boxes (305) in total, which are symmetrically and fixedly arranged on the outer peripheral surface of the top end of the column (1). The internal space of the bearing box (305) is communicated with the installation groove. The guide rod (306) is fixedly arranged on the inner wall of the bearing box (305) and movably penetrates through the support arm (304).

3. A small wind turbine with automatic fan angle adjustment according to claim 2, characterized in that: The angle adjustment unit (3) further includes a rotational speed sensor (307) and a controller (308). The rotational speed sensor (307) and the controller (308) are both fixedly installed on the outer wall of the top surface of the nacelle (2).

4. A small wind turbine with automatic fan angle adjustment according to claim 2, characterized in that: A strip-shaped through groove communicated with the installation groove is opened on the outer peripheral surface of the top end of the column (1), and the support arm (304) is located inside the strip-shaped through groove.

5. A small wind turbine with automatic fan angle adjustment according to claim 1, characterized in that: The auxiliary positioning unit (4) includes a support plate (401) and an extension column (402). A movable through hole is opened at the center of the top surface of the support plate (401). The column (1) movably penetrates through the movable through hole. A "U" shaped positioning groove is opened on the outer wall of the support plate (401). A second hinge rod is hinged on each of the opposite side walls of the positioning groove. The extension column (402) is fixedly arranged at the end face of the second hinge rod and is located inside the positioning groove. A strip-shaped notch is opened at one end of the extension column (402) away from the second hinge rod.

6. A small wind turbine with automatic fan angle adjustment according to claim 5, characterized in that: The auxiliary positioning unit (4) further includes a positioning disc (403), a ground-inserting cone rod (404) and a turntable (405). Two third hinge rods are symmetrically hinged on the inner wall of one end of the strip-shaped notch away from the second hinge rod. The outer peripheral surface of the positioning disc (403) is connected to the end face of the third hinge rod and is located inside the strip-shaped notch. The ground-inserting cone rod (404) is threadedly connected to the center of the top surface of the positioning disc (403). The turntable (405) is fixedly arranged at one end of the ground-inserting cone rod (404) and is located outside the strip-shaped notch.

7. A small wind turbine with automatic fan angle adjustment according to claim 6, characterized in that: There are three positioning grooves in total, which are distributed in an equidistant circumferential array. The extension column (402), the positioning disc (403), the ground-inserting cone rod (404) and the turntable (405) are arranged in one-to-one correspondence with the positioning grooves.

8. A small wind turbine with automatic fan angle adjustment according to claim 1, characterized in that: A tray (5) is fixedly arranged on the outer peripheral surface of the top end of the column (1), and a support sleeve (6) is movably sleeved on the top end of the column (1). The top surface of the support sleeve (6) is fixedly connected to the bottom surface of the bracket (301), and the bottom corners of the tray (5) and the bottom corners of the support sleeve (6) are simultaneously threadedly connected with mounting bolts.

9. A small wind turbine with automatic fan angle adjustment according to claim 1, characterized in that: A support foot (7) is fixedly provided at the bottom end of the column (1), and a positioning through hole is provided on the top surface of the support foot (7).

10. A small wind turbine with automatic fan angle adjustment according to claim 1, characterized in that: A generator body is installed inside the cabin (2), and a rotating rod is installed on the rotor of the generator body. A fan body (8) is fixedly installed at one end of the rotating rod that movably extends to the outside of the cabin (2).

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