CN221277914U

CN221277914U - Novel fan blade of vertical axis wind turbine

Info

Publication number: CN221277914U
Application number: CN202323375385.3U
Authority: CN
Inventors: 蔡艺; 王小兵; 狄振杰; 李玉刚; 刘孝斌
Original assignee: Datang Wuwei New Energy Co ltd
Current assignee: Datang Wuwei New Energy Co ltd
Priority date: 2023-12-12
Filing date: 2023-12-12
Publication date: 2024-07-05
Anticipated expiration: 2033-12-12

Abstract

The utility model discloses a novel fan blade of a vertical axis wind turbine, and belongs to the technical field of wind power generation. Including main shaft and blade subassembly, the main shaft lower extreme is equipped with the bottom plate, and the main shaft upper end is equipped with the roof, and equidistant articulated a plurality of blade subassemblies that have in edge between bottom plate and roof, the blade subassembly includes a plurality of arc blades and articulates the vertical pivot at the arc blade inner end, and the crooked direction of all arc blades on every blade subassembly is unanimous, is provided with pull rod a between two adjacent blade subassemblies. The utility model has the advantages of simple and novel structure, low cost, safety, stability, high power generation efficiency and breeze operation; the wind direction is not required, the rotation space of the blades is small, the wind resistance is strong, and the popularization and the use are convenient.

Description

Novel fan blade of vertical axis wind turbine

Technical Field

The utility model relates to the technical field of wind power generation, in particular to a novel fan blade of a vertical axis wind turbine.

Background

The kinetic energy of wind is converted into mechanical energy, and then the mechanical energy is converted into electric energy, namely wind power generation. The principle of wind power generation is that wind power is utilized to drive windmill blades to rotate, and then the rotating speed is increased through a speed increaser so as to promote a generator to generate electricity. According to current windmill technology, power generation can begin at a breeze speed of approximately three meters per second. The wind power generation forms a hot tide in the world, and is an environment-friendly energy source obtaining mode because the wind power generation does not need to use fuel and can not generate radiation or air pollution. The known wind driven generator is generally divided into a horizontal axis wind driven generator and a vertical axis wind driven generator, the horizontal axis wind driven generator is greatly influenced by wind direction change, and a wind wheel steering device is generally added to adapt to the wind direction change, so that the mechanical structure of the wind driven generator is complicated, and energy loss exists in the wind wheel steering process. The vertical axis wind driven generator has small wind utilization area, low wind energy utilization rate, poor wind blade rotation effect, obvious resistance of the wind blade and low efficiency of converting wind energy into kinetic energy. The fan blade of the traditional vertical wind power generation device is large in wind receiving area and good in fan efficiency, but the problem that 1, the fan blade on one side of the leeward side of the vertical wind power generation device is equally subjected to wind, so that the stress of the windward side blade is offset by the stress of the leeward side blade, the power generation efficiency is influenced, the wind energy utilization rate is not high, and the requirements cannot be met, 2, the fan blade is easily damaged due to the large stress area of the fan blade when encountering strong wind. Due to the problems, popularization and application of the vertical axis wind turbine are seriously hindered.

Disclosure of utility model

The utility model aims to provide a novel fan blade of a vertical axis wind turbine, so that the problems in the background technology are solved.

The technical scheme adopted by the utility model is as follows:

The utility model provides a novel fan blade of vertical axis aerogenerator, includes main shaft 1 and blade subassembly, and main shaft 1 sets up on aerogenerator's stand 13, main shaft 1 lower extreme is equipped with bottom plate 2, and main shaft 1 upper end is equipped with roof 3, and equidistant articulated a plurality of blade subassemblies in edge between bottom plate 2 and roof 3, the blade subassembly includes a plurality of arc blades 5 and articulates the vertical pivot 4 at the end in arc blade 5, and the crooked direction of all arc blades 5 on each blade subassembly is unanimous, is provided with pull rod a8 between two adjacent blade subassemblies.

The blade subassembly is still including being located the upper mounting panel 6 and the lower mounting panel 7 of arc blade 5 upper and lower both sides, and every blade subassembly includes a plurality of arc blade 5, both ends set up respectively on upper mounting panel 6 and lower mounting panel 7 about the pivot 4 of arc blade 5, and the pivot 4 both ends of the first arc blade 5 of every blade subassembly set up respectively on bottom plate 2 and roof 3, and the pivot 4 of every arc blade 5 after the first arc blade 5 keeps off at the outer end back of the preceding arc blade 5 that meets it, is provided with pole setting 9 between mounting panel 6 and the lower mounting panel 7 in the outer end back department of terminal arc blade 5.

A pull rod b10 is connected between the two ends of the lower mounting plate 7, and a pull rod c11 is connected between the outer end of the lower mounting plate 7 and the inner end of the upper mounting plate 6.

The blade assembly further comprises an arc-shaped stop lever 12, the bending direction of the arc-shaped stop lever 12 is consistent with that of the arc-shaped blade 5, the inner end head of the arc-shaped stop lever 12 is connected to the lower side of the rotating shaft 4 of the first arc-shaped blade 5, and the outer end head of the arc-shaped stop lever 12 is connected to the outer end head of the upper mounting plate 6.

The upper side of the arc-shaped blade 5 is inclined downwards from inside to outside.

One end of the pull rod a8 movably penetrates through a connecting plate a15 arranged at the lower side of the outer end of one lower mounting plate 7, the other end of the pull rod a8 movably penetrates through a connecting plate b16 arranged at the lower side of the outer end of the lower mounting plate 7 adjacent to the front side, and stop blocks are arranged on the connecting plate a15 and the pull rod a8 at two sides of the connecting plate b 16.

The end of the pull rod a8 is sleeved with a spring 14.

The bottom plate 2 is provided with a plurality of through holes, and the upper side surface of the top plate 3 is arranged in a downward inclined manner from the center to the outside.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. According to the utility model, the rotatable blade assembly is formed by splicing the rotatable arc blades, so that the blades are subjected to wind in the largest area when running down the wind, and the blades rotate to form a plurality of ventilation gaps when running down the wind, thereby reducing resistance, smoothly rotating under breeze and greatly improving the power generation efficiency;

2. According to the utility model, the pull rod a with the spring, the pull rod b and the pull rod c are arranged, so that the stability and the safety of the fan blade are improved, the fan blade can be effectively prevented from being damaged by strong wind, and the service life of the fan blade is prolonged;

In summary, the utility model has the advantages of simple and novel structure, low manufacturing cost, safe and stable operation, breeze operation and high power generation efficiency; the wind direction is not required, the rotation space of the blades is small, the wind resistance is strong, and the popularization and the use are convenient.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a top view of the present utility model;

FIG. 3 is a state diagram of the utility model when it is blown by wind;

The figure shows: a main shaft 1; a base plate 2; a top plate 3; a rotating shaft 4; an arc-shaped blade 5; an upper mounting plate 6; a lower mounting plate 7; a pull rod a8; a vertical rod 9; a pull rod b10; a pull rod c11; an arc-shaped stop lever 12; a column 13; a spring 14; a connecting plate a15; and a connecting plate b16.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Examples

1-3, This embodiment provides a novel fan blade of vertical axis aerogenerator, including main shaft 1 and blade subassembly, main shaft 1 lower extreme is equipped with bottom plate 2, and main shaft 1 upper end is equipped with roof 3, and equidistant articulated a plurality of blade subassemblies in edge between bottom plate 2 and roof 3, the blade subassembly includes a plurality of arc blades 5 and articulates the vertical pivot 4 at the inner end of arc blade 5, and the crooked direction of all arc blades 5 on each blade subassembly is unanimous, is provided with pull rod a8 between two adjacent blade subassemblies.

A pull rod b10 is connected between the two ends of the lower mounting plate 7, and a pull rod c11 is connected between the outer end of the lower mounting plate 7 and the inner end of the upper mounting plate 6. The pull rod b10 and the pull rod c11 enable the arc-shaped blade structure to be more stable, and damage to the arc-shaped blade structure by strong wind is prevented.

The blade assembly further comprises an arc-shaped stop lever 12, the bending direction of the arc-shaped stop lever 12 is consistent with that of the arc-shaped blade 5, the inner end head of the arc-shaped stop lever 12 is connected to the lower side of the rotating shaft 4 of the first arc-shaped blade 5, and the outer end head of the arc-shaped stop lever 12 is connected to the outer end head of the upper mounting plate 6. The arc stop lever 12 limits the swing amplitude of the arc-shaped blade 5 and prevents the arc-shaped blade 5 from swinging irregularly.

The upper side of the arc-shaped blade 5 is inclined downwards from inside to outside. Therefore, the whole fan blade structure is more stable, and meanwhile, wind can be blown to each blade to enable the fan blade to smoothly rotate.

One end of the pull rod a8 movably penetrates through a connecting plate a15 arranged at the lower side of the outer end of the lower mounting plate 7, the other end of the pull rod a8 movably penetrates through a connecting plate b16 arranged at the lower side of the outer end of the lower mounting plate 7 adjacent to the front side, and stop blocks are arranged on the connecting plate a15 and the pull rods a8 at the two sides of the connecting plate b16, so that the pull rod a8 can move in a small range. The through holes on the connecting plate a15 and the connecting plate b16 are bar-shaped holes, so that the angle change of the pull rod a8 is convenient. The end of the pull rod a8 is sleeved with a spring 14, and the spring 14 is positioned between the connecting plate a and the baffle plate at the end of the pull rod a 8. The pull rod a8 can make all the fan blades form a whole, so that the structure is more stable, a single blade assembly can be prevented from being damaged by strong wind, and meanwhile, the spring 14 can play a role in buffering when encountering strong wind. On the other hand, the pull rod a8 limits the rotation of the blade assembly, and only enables the blade assembly to swing within a small range so as to prevent the blade assembly from being opened smoothly when being combined.

The bottom plate 2 is provided with a plurality of through holes, and the upper side surface of the top plate 3 is arranged in a downward inclined manner from the center to the outside. The through holes on the bottom plate 2 can reduce the weight of the bottom plate; the upper side of the top plate 3 is inclined downward from the center to the outside to prevent snow from being accumulated.

Claims

1. The novel fan blade of the vertical axis wind driven generator comprises a main shaft (1) and blade assemblies, and is characterized in that a bottom plate (2) is arranged at the lower end of the main shaft (1), a top plate (3) is arranged at the upper end of the main shaft (1), a plurality of blade assemblies are hinged at equal intervals at the edge between the bottom plate (2) and the top plate (3), each blade assembly comprises a plurality of arc-shaped blades (5) and a vertical rotating shaft (4) hinged at the inner end of each arc-shaped blade (5), the bending directions of all the arc-shaped blades (5) on each blade assembly are consistent, and a pull rod a (8) is arranged between every two adjacent blade assemblies;

The blade assembly further comprises an upper mounting plate (6) and a lower mounting plate (7) which are positioned on the upper side and the lower side of the arc-shaped blade (5), one end of the pull rod a (8) movably penetrates through a connecting plate a (15) arranged on the lower side of the outer end of one lower mounting plate (7), the other end of the pull rod a (8) movably penetrates through a connecting plate b (16) arranged on the lower side of the outer end of the front side adjacent lower mounting plate (7), and stop blocks are arranged on the connecting plate a (15) and the pull rod a (8) on the two sides of the connecting plate b (16); a spring (14) is sleeved on the end of the pull rod a (8).

2. The novel fan blade of a vertical axis wind turbine according to claim 1, wherein: the upper end and the lower end of a rotating shaft (4) of each arc-shaped blade (5) are respectively arranged on an upper mounting plate (6) and a lower mounting plate (7), the two ends of the rotating shaft (4) of the first arc-shaped blade (5) of each blade assembly are respectively arranged on a bottom plate (2) and a top plate (3), the rotating shaft (4) of each arc-shaped blade (5) behind the first arc-shaped blade (5) is blocked at the back of the outer end head of the previous arc-shaped blade (5) connected with the rotating shaft, and a vertical rod (9) is arranged between the upper mounting plate (6) and the lower mounting plate (7) at the back of the outer end head of the tail end arc-shaped blade (5).

3. The novel fan blade of a vertical axis wind turbine according to claim 2, wherein: a pull rod b (10) is connected between the two ends of the lower mounting plate (7), and a pull rod c (11) is connected between the outer end head of the lower mounting plate (7) and the inner end head of the upper mounting plate (6).

4. The novel fan blade of a vertical axis wind turbine according to claim 2, wherein: the blade assembly further comprises an arc-shaped stop lever (12), the bending direction of the arc-shaped stop lever (12) is consistent with that of the arc-shaped blade (5), the inner end head of the arc-shaped stop lever (12) is connected to the lower side of the rotating shaft (4) of the first arc-shaped blade (5), and the outer end head of the arc-shaped stop lever (12) is connected to the outer end head of the upper mounting plate (6).

5. The novel fan blade of a vertical axis wind turbine according to claim 2, wherein: the upper sides of the arc-shaped blades (5) incline downwards from inside to outside.

6. The novel fan blade of a vertical axis wind turbine according to claim 1, wherein: the bottom plate (2) is provided with a plurality of through holes, and the upper side surface of the top plate (3) is arranged in a downward inclined manner from the center to the outside.