Vertical axis wind turbine

Abstract

The invention relates to the field of wind driven generators, and discloses a vertical axis wind driven generator which comprises a bottom column and a power generation assembly, the power generation assembly comprises a generator and blades, the blades are installed at the output end of the generator, and the power generation assembly is installed at the upper end of the bottom column; the top cavity is formed in the upper end of the bottom column, a driving motor is installed at the upper end of the interior of the top cavity, a driving screw rod is fixed to the output end of the driving motor, and guide grooves are formed in the positions, located on the two sides of the exterior of the top cavity, of the interior of the bottom column; the sliding assembly comprises an inner ring and an outer ring, sliding blocks are arranged on the two sides between the outer ring and the inner ring, the inner ring is arranged in the top cavity, and the outer ring is arranged outside the bottom column. Stable lifting of the power generation assembly is achieved through the driving motor and the sliding assembly, high-altitude equipment is not needed, and the problems that traditional maintenance cost is high and safety is poor are solved; the electric telescopic rod is matched with the wedge-shaped block to achieve rapid opening and closing of the top disc, and the process is simplified.

Description

Technical Field

[0001] This invention relates to the field of wind turbines, specifically a vertical axis wind turbine. Background Technology

[0002] In the field of new energy development, vertical axis wind turbines are widely used in power supply systems in urban peripheries, islands, and remote areas due to their advantages such as convenient installation, strong adaptability to wind direction, and low noise. In existing technologies, the core power generation components (including the generator and blades) of vertical axis wind turbines are typically fixedly installed on supports or towers at high altitudes to obtain more stable wind resources. To ensure structural stability, the power generation components and supporting structures are often rigidly connected, and the overall height generally ranges from several meters to tens of meters.

[0003] However, this traditional installation method has significant maintenance drawbacks. When the power generation components malfunction and require repair, replacement of parts, or regular maintenance, operators must use aerial work platforms, scaffolding, or climbing equipment to reach the work location. This not only requires a professional aerial work team but also expends considerable time setting up the work platform, resulting in high maintenance costs. Furthermore, aerial work is greatly affected by weather conditions; strong winds, rain, snow, and other severe weather can directly delay maintenance progress, and operators face the risk of falls, posing significant safety hazards. In addition, the connection between the power generation components and the supporting structure in existing structures is complex, and the disassembly and installation steps are cumbersome, further extending equipment downtime and severely impacting the continuity and efficiency of wind power generation. Especially for small-scale distributed wind power systems, frequent aerial maintenance significantly reduces their economic viability and practicality. Therefore, a vertical axis wind turbine is proposed. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a vertical axis wind turbine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vertical axis wind turbine, comprising:

[0006] The base column and power generation assembly, the power generation assembly including a generator and blades, the blades being installed at the output end of the generator, and the power generation assembly being installed at the upper end of the base column, can provide a stable support foundation for the power generation assembly and ensure structural reliability during the power generation process;

[0007] The top cavity is located inside the upper end of the bottom column. A drive motor is installed inside the upper end of the top cavity, and a drive screw is fixed to the output end of the drive motor. Guide grooves are provided on both sides of the bottom column outside the top cavity. Power can be transmitted by driving the rotation of the screw through the drive motor. The guide grooves can provide precise guidance for subsequent structural movement and ensure the stability of the movement.

[0008] It also includes a sliding assembly, which includes an inner ring and an outer ring. Slider blocks are provided on both sides between the outer ring and the inner ring. The inner ring is located inside the top cavity, and the outer ring is located outside the bottom column. The inner ring and the outer ring are connected by sliders to form a stable transmission structure, which can convert rotational motion into linear motion and enhance the load-bearing capacity and motion synchronization of the overall structure.

[0009] A flange is located at the top of the outer ring. A support ring is provided on the top of the flange. A top plate is installed on one side of the upper end of the support ring via a hinge. The lower end face of the generator is connected to the support ring via a frame. The connection structure between the flange and the support ring ensures the stability of the generator assembly installation. The hinged top plate can be flexibly flipped to facilitate the position adjustment of the generator assembly.

[0010] The side cavity is located inside the support ring on the side opposite to the hinge. Inside the side cavity, an electric telescopic rod, a return spring, and a wedge block are installed from the outside to the inside. A limit groove is provided on the side of the top plate near the wedge block. The cooperation between the electric telescopic rod and the wedge block can quickly realize the limit and release of the top plate. The return spring ensures the reliability of the structure's reset, effectively simplifies the operation process during maintenance, and improves the convenience and safety of equipment maintenance.

[0011] The drive motor controls the rotation of the drive screw. The drive screw and the inner ring are engaged by a thread to convert the rotational motion of the drive screw into the linear motion of the inner ring, which in turn drives the power generation component to descend, thus facilitating maintenance and repair.

[0012] Preferably, the wedge block is adapted to the limiting groove, and the two ends of the return spring are respectively connected to the wedge block and the electric telescopic rod. When the top plate is closed, the wedge block collides with the outer edge of the top plate, causing the return spring to be compressed and deformed. The wedge block is retracted into the side cavity. After the top plate is flipped to the horizontal, the return spring resets and pushes the wedge block to insert into the limiting groove to fix the top plate.

[0013] The electric telescopic rod moves the wedge block away from the limiting groove, thereby releasing the limiting effect on the top plate.

[0014] Preferably, the bottom column has drainage grooves on both sides at the lower end of the top cavity, and the drainage grooves are integrally formed with the bottom column.

[0015] Preferably, the drainage channel is connected to the top cavity, and the bottom column has a bottom cavity at its lower end, which is integrally formed with the bottom column. The drainage channel is used to drain the rainwater accumulated inside the top cavity.

[0016] Preferably, the lower end face of the bottom column is provided with a base plate, and the base plate is welded to the bottom column, thereby increasing the bottom area of ​​the bottom column.

[0017] Preferably, the chassis has perforations that are equidistantly distributed in a ring shape inside, and the perforations are integrally formed with the chassis. The perforations are used for fasteners to pass through.

[0018] Preferably, a support block is provided on the upper end face of the support ring located outside the hinge, and the support block is connected to the support ring by bolts. The support block is used to prevent the top plate from overturning.

[0019] Preferably, the inner ring is connected to the drive screw via a threaded connection, the outer ring is movably connected to the bottom column, and the drive screw is used to control the inner ring to rise and fall.

[0020] Preferably, the slider is slidably connected to the guide groove, and the two ends of the slider are welded to the inner ring and the outer ring respectively, and the slider slides up and down inside the guide groove.

[0021] Preferably, the flange and the support ring are connected by bolts, and the outer ring is welded to the support ring.

[0022] Compared with the prior art, the present invention provides a vertical axis wind turbine generator with the following advantages:

[0023] This invention achieves smooth lifting and lowering of the power generation component through the cooperation of the internal drive motor, drive screw and sliding component in the top cavity. It has the advantage of being able to lower the power generation component to an easy operating height without relying on external high-altitude work equipment, and solves the problems of high cost and poor safety of traditional high-altitude maintenance. The movement of the slider along the guide groove ensures the stability of the lifting process and improves the convenience and efficiency of maintenance operations.

[0024] Through the coordinated action of the electric telescopic rod, return spring and wedge block inside the side cavity, the top plate can be quickly opened and locked. This simplifies the process of disconnecting the power generation components from the bottom column and solves the problem of cumbersome and time-consuming disassembly of traditional rigid connections. With the help of the hinge structure and the limit groove, the flexibility of equipment adjustment during maintenance is improved, the downtime for maintenance is shortened, and the continuity of the power generation system is ensured. Attached Figure Description

[0025] Figure 1 This is a perspective view of the overall structure of the present invention;

[0026] Figure 2 This is a cross-sectional view of the bottom column structure of the present invention;

[0027] Figure 3 For the present invention Figure 2 Enlarged view of a portion of region A in the middle;

[0028] Figure 4 This is a cross-sectional view of the top plate structure of the present invention;

[0029] Figure 5This is a perspective view of the sliding component of the present invention.

[0030] In the diagram: 1. Base column; 2. Chassis; 3. Perforation; 4. Bottom cavity; 5. Top cavity; 6. Drainage groove; 7. Guide groove; 8. Drive motor; 9. Drive screw; 10. Inner ring; 11. Outer ring; 12. Slider; 13. Support ring; 14. Top plate; 15. Generator; 16. Blade; 17. Limiting groove; 18. Side cavity; 19. Electric telescopic rod; 20. Return spring; 21. Wedge block; 22. Support block; 23. Flange. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] This invention provides a technical solution: a vertical axis wind turbine generator. Please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3 ,include:

[0033] The base column 1 and the power generation assembly, the power generation assembly including generator 15 and blades 16, the blades 16 are installed at the output end of generator 15, and the power generation assembly is installed at the upper end of the base column 1;

[0034] The top cavity 5 is located inside the upper end of the bottom column 1. A drive motor 8 is installed inside the upper end of the top cavity 5. A drive screw 9 is fixed at the output end of the drive motor 8. Guide grooves 7 are provided on both sides of the bottom column 1 outside the top cavity 5.

[0035] It also includes a sliding assembly, which includes an inner ring 10 and an outer ring 11. Slider 12 is provided on both sides between the outer ring 11 and the inner ring 10. The inner ring 10 is located inside the top cavity 5, and the outer ring 11 is located outside the bottom column 1.

[0036] Flange 23 is located on the top of outer ring 11. A support ring 13 is located on the top of flange 23. A top plate 14 is installed on one side of the upper end of support ring 13 via a hinge. The lower end face of generator 15 is connected to support ring 13 via a frame.

[0037] The side cavity 18 is located inside the support ring 13 on the side opposite to the hinge. The side cavity 18 is equipped with an electric telescopic rod 19, a return spring 20 and a wedge block 21 from the outside to the inside. The top plate 14 has a limit groove 17 on the side near the wedge block 21.

[0038] The drive motor 8 controls the drive screw 9 to rotate. The drive screw 9 and the inner ring 10 are engaged by a thread to convert the rotational motion of the drive screw 9 into the linear motion of the inner ring 10, thereby driving the power generation component to descend, which facilitates maintenance and repair work.

[0039] Please see Figure 3 The wedge block 21 is adapted to the limiting groove 17. The two ends of the return spring 20 are connected to the wedge block 21 and the electric telescopic rod 19 respectively. When the top plate 14 is closed, the wedge block 21 collides with the outer edge of the top plate 14, causing the return spring 20 to be compressed and deformed. The wedge block 21 is retracted into the side cavity 18. After the top plate 14 is flipped to the horizontal, the return spring 20 resets and pushes the wedge block 21 to insert into the limiting groove 17 to fix the top plate 14.

[0040] The electric telescopic rod 19 drives the wedge block 21 away from the limiting groove 17, thereby releasing the limiting effect on the top plate 14.

[0041] Please see Figure 2 Drainage grooves 6 are provided on both sides of the bottom cavity 5 inside the bottom column 1, and the drainage grooves 6 are integrally formed with the bottom column 1.

[0042] Please see Figure 2 The drainage channel 6 is connected to the top cavity 5. The bottom column 1 has a bottom cavity 4 at its lower end, and the bottom cavity 4 is integrally formed with the bottom column 1. The drainage channel 6 is used to drain the rainwater accumulated inside the top cavity 5.

[0043] Please see Figure 1 The bottom end face of the bottom column 1 is provided with a base plate 2, and the base plate 2 is welded to the bottom column 1. The base plate 2 increases the bottom area of ​​the bottom column 1.

[0044] Please see Figure 1 The chassis 2 has perforations 3 that are evenly distributed in a ring shape inside, and the perforations 3 are integrally formed with the chassis 2. The perforations 3 are used for fasteners to pass through.

[0045] Please see Figure 1 and Figure 2 The upper end face of the ring 13 is provided with a support block 22 located on the outside of the hinge, and the support block 22 is connected to the ring 13 by bolts. The support block 22 is used to prevent the top plate 14 from overturning.

[0046] Please see Figure 1 , Figure 2 and Figure 5 The inner ring 10 is connected to the drive screw 9 by a threaded connection, and the outer ring 11 is movably connected to the bottom column 1. The drive screw 9 is used to control the inner ring 10 to rise and fall.

[0047] Please see Figure 2 and Figure 5The slider 12 is slidably connected to the guide groove 7. The two ends of the slider 12 are welded to the inner ring 10 and the outer ring 11 respectively. The slider 12 slides up and down inside the guide groove 7.

[0048] Please see Figure 1 , Figure 2 and Figure 3 The flange 23 is bolted to the support ring 13, and the outer ring 11 is welded to the support ring 13. The flange 23 makes the connection between the support ring 13 and the top plate 14 more stable and firm.

[0049] This scheme: Under normal power generation conditions, natural wind acts on the blades 16, causing them to rotate around the output end of the generator 15. Through electromagnetic induction, the generator 15 converts wind energy into electrical energy, achieving energy conversion. At this time, the entire power generation assembly is fixed to the support ring 13 via the frame, and the top plate 14 is in a closed state, forming a protective structure for the generator 15 together with the support ring 13. When it is necessary to inspect, maintain, or replace parts of the power generation assembly, the electric telescopic rod 19 in the side cavity 18 is activated. The electric telescopic rod 19 extends and pushes the wedge block 21 to overcome the elastic force of the return spring 20 and move into the side cavity 18 until the wedge block 21 is completely disengaged from the limiting groove 17. The top plate 14 can then be freely flipped open. Tools are used to flip the top plate 14 to... This allows the power generation components to avoid the bottom column 1; the drive motor 8 inside the top cavity 5 is started, and the output end of the drive motor 8 drives the drive screw 9 to rotate. Since the inner ring 10 is connected to the drive screw 9 by a threaded connection, and the two sides of the inner ring 10 are fixed to the outer ring 11 by the slider 12, and the slider 12 is embedded in the guide grooves 7 on both sides of the bottom column 1, the rotational motion of the drive screw 9 is converted into the linear motion of the inner ring 10. As the inner ring 10 moves downward along the top cavity 5, the slider 12 slides down along the guide groove 7 in sync, causing the outer ring 11 to move downward outside the bottom column 1. Then, through the flange 23, the support ring 13 and the power generation components above are pulled down as a whole, so that the generator 15 and blades 16, which were originally in the air, are lowered to a height that is easy for operators to access, greatly reducing the difficulty of maintenance.

[0050] When the top plate 14 is closed, use a tool to lift the top plate 14 so that it flips around the hinge at the upper end of the support ring 13. The outer edge of the side plate 14 closest to the side cavity 18 collides with the wedge block 21, forcing the wedge block 21 to compress the return spring 20 in the side cavity 18 and temporarily retract into the side cavity 18. When the top plate 14 flips to a horizontal position, the return spring 20 returns to its original deformation, pushing the wedge block 21 out and precisely inserting it into the limiting groove 17 of the top plate 14, thus fixing the top plate 14 and ensuring that it will not open accidentally under wind force. Rainwater accumulated in the top cavity 5 is released through the two... The side drainage channel 6 flows into the bottom cavity 4, and then is discharged through the drainage structure of the bottom cavity 4, which prevents rainwater from accumulating and damaging the internal components. The base plate 2 at the lower end of the base column 1 is connected to the base column 1 by welding. Its annularly distributed perforations 3 allow the fasteners to pass through, so that the equipment is firmly installed on the foundation, increasing the bottom support area to improve the overall wind resistance. The support block 22 at the upper end of the support ring 13 is fixed by bolts, which plays a limiting role when the top plate 14 is opened, preventing it from overturning at too large an angle and causing structural damage, thus ensuring the safety and reliability of the equipment in all aspects.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical axis wind turbine generator, characterized in that, include: The base column (1) and the power generation assembly, the power generation assembly including a generator (15) and blades (16), the blades (16) being mounted on the output end of the generator (15), and the power generation assembly being mounted on the upper end of the base column (1); The top cavity (5) is located inside the upper end of the bottom column (1). A drive motor (8) is installed inside the upper end of the top cavity (5). A drive screw (9) is fixed at the output end of the drive motor (8). Guide grooves (7) are provided on both sides of the bottom column (1) outside the top cavity (5). It also includes a sliding assembly, which includes an inner ring (10) and an outer ring (11). Slider (12) is provided on both sides between the outer ring (11) and the inner ring (10). The inner ring (10) is located inside the top cavity (5), and the outer ring (11) is located outside the bottom column (1). A flange (23) is set on the top of the outer ring (11). A support ring (13) is set on the top of the flange (23). A top plate (14) is installed on one side of the upper end of the support ring (13) by a hinge. The lower end face of the generator (15) is connected to the support ring (13) through a frame. The side cavity (18) is located inside the support ring (13) on the side away from the hinge. The side cavity (18) is equipped with an electric telescopic rod (19), a return spring (20) and a wedge block (21) from the outside to the inside. The top plate (14) has a limit groove (17) on the side near the wedge block (21).

2. A vertical axis wind turbine generator according to claim 1, characterized in that: The wedge block (21) is adapted to the limiting groove (17), and the two ends of the reset spring (20) are connected to the wedge block (21) and the electric telescopic rod (19) respectively.

3. A vertical axis wind turbine generator according to claim 1, characterized in that: The bottom column (1) has drainage grooves (6) on both sides of the lower end of the top cavity (5) inside, and the drainage grooves (6) are integrally formed with the bottom column (1).

4. A vertical axis wind turbine generator according to claim 3, characterized in that: The drainage channel (6) is connected to the top cavity (5), and the bottom column (1) has a bottom cavity (4) at its lower end, and the bottom cavity (4) and the bottom column (1) are integrally formed.

5. A vertical axis wind turbine generator according to claim 1, characterized in that: The lower end face of the bottom column (1) is provided with a base plate (2), and the base plate (2) is welded to the bottom column (1).

6. A vertical axis wind turbine generator according to claim 5, characterized in that: The chassis (2) has perforations (3) that are equidistantly distributed along a ring, and the perforations (3) are integrally formed with the chassis (2).

7. A vertical axis wind turbine generator according to claim 1, characterized in that: The upper end face of the ring (13) is provided with a support block (22) located outside the hinge, and the support block (22) is connected to the ring (13) by bolts.

8. A vertical axis wind turbine generator according to claim 1, characterized in that: The inner ring (10) is connected to the drive screw (9) by a threaded connection, and the outer ring (11) is movably connected to the bottom column (1).

9. A vertical axis wind turbine generator according to claim 1, characterized in that: The slider (12) is slidably connected to the guide groove (7), and the two ends of the slider (12) are welded to the inner ring (10) and the outer ring (11) respectively.

10. A vertical axis wind turbine generator according to claim 1, characterized in that: The flange (23) is bolted to the support ring (13), and the outer ring (11) is welded to the support ring (13).

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