阅读说明：本技术 一种抗风型风电叶片 (Wind-resistant wind power blade ) 是由 刘文韬 于 2021-04-06 设计创作，主要内容包括：本发明涉及风力发电领域,具体公开了一种抗风型风电叶片,包括固定段与摆臂段,固定段中部中空,固定段上下两端对称均开有通槽,通槽内均滑动连接有辅助接风板,辅助接风板侧面上均开设有朝外倾斜的连接槽；固定段内轴向滑动连接有传导块,传导块两端均固定设置有连接柱,连接柱转动连接有滚轮,滚轮滚动连接在连接槽内,传导块两端还开有容纳辅助接风板的嵌入槽；固定段端部一侧转动连接有竖向设置的转轴,摆臂段固定连接在转轴上,连接腔内设置有用于驱动转轴转动的驱动装置；转轴上固定有同轴线的传动齿轮,传导块的侧壁上开设有与传动齿轮啮合的齿；本发明意在解决风电叶片遭遇恶劣强风时,叶片易损毁,且也不利于运输的问题。(The invention relates to the field of wind power generation, and particularly discloses an anti-wind type wind power blade which comprises a fixed section and a swing arm section, wherein the middle part of the fixed section is hollow, through grooves are symmetrically formed in the upper end and the lower end of the fixed section, auxiliary wind receiving plates are connected in the through grooves in a sliding mode, and connecting grooves which are inclined outwards are formed in the side faces of the auxiliary wind receiving plates; the inner end of the fixed section is axially and slidably connected with a transmission block, connecting columns are fixedly arranged at two ends of the transmission block, the connecting columns are rotatably connected with rollers, the rollers are connected in the connecting grooves in a rolling manner, and embedded grooves for accommodating auxiliary air receiving plates are formed in two ends of the transmission block; one side of the end part of the fixed section is rotatably connected with a vertically arranged rotating shaft, the swing arm section is fixedly connected on the rotating shaft, and a driving device for driving the rotating shaft to rotate is arranged in the connecting cavity; a coaxial transmission gear is fixed on the rotating shaft, and teeth meshed with the transmission gear are arranged on the side wall of the transmission block; the invention aims to solve the problems that when the wind power blade encounters severe strong wind, the blade is easy to damage and is not beneficial to transportation.)

1. The utility model provides a wind-resistant type wind-powered electricity generation blade which characterized in that: the swing arm type wind power generation device comprises a fixed section and a swing arm section, wherein the middle part of the fixed section is hollow, through grooves are symmetrically formed in the upper end and the lower end of the fixed section, auxiliary wind receiving plates are connected in the through grooves in a sliding mode, and connecting grooves which incline outwards are formed in the side faces of the auxiliary wind receiving plates; the inner end of the fixed section is axially and slidably connected with a transmission block, connecting columns are fixedly arranged at two ends of the transmission block, the connecting columns are rotatably connected with rollers, the rollers are connected in the connecting grooves in a rolling manner, and embedded grooves for accommodating auxiliary air receiving plates are formed in two ends of the transmission block; one side of the end part of the fixed section is rotatably connected with a vertically arranged rotating shaft, the swing arm section is fixedly connected to the rotating shaft, and a driving device for driving the rotating shaft to rotate is arranged in the connecting cavity; a coaxial transmission gear is fixed on the rotating shaft, and teeth meshed with the transmission gear are formed in the side wall of the transmission block.

2. The wind-resistant wind power blade of claim 1, wherein: the inner wall of the fixed section is rotatably connected with a ring seat of a coaxial line, a plurality of limiting rods facing the swing arm section are fixed on the end face of the ring seat, limiting blocks facing the fixed section are connected to the end portions of the limiting rods in a sliding mode, a reset spring is arranged between each limiting block and each limiting rod, and the end faces, facing the swing arm section, of the limiting blocks are arc-shaped faces; the end part of the swing arm section is provided with a cylindrical cavity of a coaxial line, the inner wall of the cylindrical cavity is provided with a plurality of limiting grooves corresponding to the limiting blocks, a plurality of arc-shaped grooves with the same central axis are distributed in the cylindrical cavity in a circular array manner, the arc-shaped grooves are communicated with the corresponding limiting grooves, and one side of each arc-shaped groove facing the fixed section penetrates through the swing arm section; the outer side of the transmission block is fixed with a plurality of driving rods, the inner side of the ring seat is provided with a plurality of driving grooves corresponding to the driving rods, and the driving grooves are spirally bent.

3. The wind-resistant wind power blade of claim 2, wherein: the inside both sides of fixed section have seted up the spout along the axial, the conduction piece both sides are fixed with the connecting plate, and connecting plate sliding connection is in corresponding spout.

4. A wind-resistant wind power blade according to claim 3, wherein: the fixed section is characterized in that a connecting cavity is formed in the side wall of the fixed section, an electromagnet is connected in the connecting cavity in a sliding mode, a limiting bolt stretching into the fixed section is fixed to one end of the electromagnet facing the conducting block, a reset spring is fixed between the electromagnet and the connecting cavity, the end portion of the limiting bolt is U-shaped, and a limiting opening corresponding to the end portion of the limiting bolt is formed in the auxiliary wind receiving plate.

5. The wind-resistant wind power blade of claim 4, wherein: the driving device comprises a driving motor fixed inside the fixed section, a driving gear is fixed on the output end of the driving motor, and a driven gear meshed with the driving gear is fixed on the rotating shaft.

6. The wind-resistant wind power blade of claim 5, wherein: the end faces, far away from the fixed section, of the auxiliary air receiving plates are all arc-shaped.

Technical Field

The invention relates to the technical field of wind power generation, and particularly discloses a wind-resistant wind power blade.

Background

Wind energy resources are very abundant worldwide, and almost all regions and countries have considerable wind energy reserves. In recent years, the oil crisis is frequent, and the oil reserves and coal reserves of all countries in the world are exhausted in hundreds of years, so that the attention of China, America, Britain, Spanish and other countries is gradually shifted to the development and utilization of new energy. Wind energy, one of the important components of renewable energy, has attracted the attention of researchers, and is also supported by governments in various countries.

World wind power has gained dramatic development from the last 70 s to modern times. The total wind power generation in the world in 1996 is only 12.2 TWh; after ten years, the electricity generation amount of wind power in the world in 2008 reaches about 219TWh, which accounts for 1.1% of the total electricity generation amount of 20261TWh in the world in the current year, and in three years, the electricity generation amount of wind power in the world reaches 460TWh (2011) which accounts for 2.1% of the total electricity generation amount 22018TWh in the world in the current year.

With the improvement of blade materials and manufacturing technologies, the power of wind power generation devices is increased more and more, and the length of a large wind power blade can reach nearly one hundred meters. The application of the large wind power blade improves the efficiency of wind energy capture, but the windward resistance of the large wind power blade is considerable, and the blade can be damaged when severe strong wind is encountered; and large wind power blades are also not conducive to transportation.

Disclosure of Invention

The invention aims to provide a wind-resistant wind power blade to solve the problems that the wind power blade is easy to damage and is not favorable for transportation when encountering severe strong wind.

In order to achieve the purpose, the basic scheme of the invention is as follows:

an anti-wind type wind power blade comprises a fixed section and a swing arm section, wherein the middle part of the fixed section is hollow, through grooves are symmetrically formed in the upper end and the lower end of the fixed section, auxiliary wind receiving plates are connected in the through grooves in a sliding mode, and connecting grooves which are inclined outwards are formed in the side faces of the auxiliary wind receiving plates; the inner end of the fixed section is axially and slidably connected with a transmission block, connecting columns are fixedly arranged at two ends of the transmission block, the connecting columns are rotatably connected with rollers, the rollers are connected in the connecting grooves in a rolling manner, and embedded grooves for accommodating auxiliary air receiving plates are formed in two ends of the transmission block; one side of the end part of the fixed section is rotatably connected with a vertically arranged rotating shaft, the swing arm section is fixedly connected to the rotating shaft, and a driving device for driving the rotating shaft to rotate is arranged in the connecting cavity; a coaxial transmission gear is fixed on the rotating shaft, and teeth meshed with the transmission gear are formed in the side wall of the transmission block.

In the scheme, the auxiliary wind receiving plate extends out of the fixed section in a breeze state to play a role in increasing the windward side, so that the utilization rate of a wind field is increased; under the strong wind state, the driving device and the rotating shaft are utilized to enable the swing arm section to swing to be attached to the fixed section, the windward side is reduced, the stress of the blades is greatly reduced, and therefore the risk of damage to the blades and the overall overturning of the wind power device is reduced; when the rotating shaft rotates, the transmission block is driven to move towards the direction of the swing arm section through the meshing between the transmission gear and the transmission block, the transmission block is matched with the roller through the connecting column to extrude the auxiliary wind receiving plate, so that the auxiliary wind receiving plate slides back into the fixed section, the windward side is further reduced, the end part of the auxiliary wind receiving plate slides into the embedded groove at the moment, the auxiliary wind receiving plate is connected with the transmission block, the shearing strength of the fixed section is improved, and the risk of blade breakage caused by strong wind is further reduced; in addition, after the swing arm section is folded, the space occupied by the blades is reduced, and the effect of facilitating transportation is achieved.

Optionally, the inner wall of the fixed section is rotatably connected with a ring seat of a coaxial line, a plurality of limiting rods facing the swing arm section are fixed on the end face of the ring seat, limiting blocks facing the fixed section are connected to the end portions of the limiting rods in a sliding manner, a reset spring is arranged between each limiting block and each limiting rod, and the end faces, facing the swing arm section, of the limiting blocks are arc-shaped faces; the end part of the swing arm section is provided with a cylindrical cavity of a coaxial line, the inner wall of the cylindrical cavity is provided with a plurality of limiting grooves corresponding to the limiting blocks, a plurality of arc-shaped grooves with the same central axis are distributed in the cylindrical cavity in a circular array manner, the arc-shaped grooves are communicated with the corresponding limiting grooves, and one side of each arc-shaped groove facing the fixed section penetrates through the swing arm section; the outer side of the transmission block is fixed with a plurality of driving rods, the inner side of the ring seat is provided with a plurality of driving grooves corresponding to the driving rods, and the driving grooves are spirally bent.

When the swing arm section is folded by the driving of the rotating shaft, the conducting block moves towards the swing arm section, the conducting block enables the ring seat to rotate through the matching between the driving rod and the driving groove, the ring seat drives the limiting rod and the limiting block to rotate, the limiting block slides into the arc-shaped groove from the limiting groove, the limiting block stops limiting the swing arm section, and the swing arm section can deflect and fold; when pivot drive swing arm section expandes, the conducting block removes towards the direction of keeping away from the swing arm section, the conducting block passes through the cooperation between actuating lever and the drive groove and makes ring seat antiport, make gag lever post and stopper change home position back, the swing arm section expandes the back, the stopper of gag lever post tip inserts in the swing arm section, the arcwall face of swing arm section inside extrusion stopper, make the stopper slide back to in the gag lever post, it is relative with the spacing groove until the stopper, the stopper slides out the gag lever post and inserts in the spacing groove under reset spring's effect, thereby stabilize being connected between swing arm section and the fixed segment.

Optionally, sliding grooves are formed in two sides of the inside of the fixed section in the axial direction, connecting plates are fixed to two sides of the conducting block, and the connecting plates are connected in the corresponding sliding grooves in a sliding mode.

Through the cooperation between spout and the connecting plate, make the conduction piece can slide along the axial in the fixed segment, and can not take place to deflect.

Optionally, a connecting cavity is formed in the side wall of the fixed section, an electromagnet is connected in the connecting cavity in a sliding mode, a limiting bolt extending into the fixed section is fixed to one end of the electromagnet facing the conducting block, a reset spring is fixed between the electromagnet and the connecting cavity, the end portion of the limiting bolt is U-shaped, and a limiting opening corresponding to the end portion of the limiting bolt is formed in the auxiliary air receiving plate.

When the swing arm section is in a folding state, the fixed section and the swing arm section are simultaneously adsorbed by the electromagnet, so that the effect of stabilizing the swing arm section is achieved, and the swing arm section is prevented from swinging under the influence of strong wind to cause damage to structures such as a rotating shaft and the like; when the swing arm section is folded, the swing arm section extrudes the electromagnet to slide towards the inside of the fixed section, and the electromagnet pushes the U-shaped end part of the limiting bolt to be inserted into the limiting port of the auxiliary air receiving plate, so that the auxiliary air receiving plate is limited vertically, and the auxiliary air receiving plate is prevented from sliding out of the fixed section under the influence of centrifugal force in the rotating process of the blade.

Optionally, the driving device includes a driving motor fixed inside the fixed section, a driving gear is fixed on an output end of the driving motor, and a driven gear engaged with the driving gear is fixed on the rotating shaft.

The driving motor achieves the effect of driving the rotating shaft to rotate through the meshing of the driving gear and the driven gear.

Optionally, the end surfaces of the auxiliary wind receiving plates, which are far away from the fixed section, are all arc-shaped.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a swing arm segment according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a fixing segment according to an embodiment of the present invention;

FIG. 4 is a longitudinal cross-sectional view of a fixation segment in an embodiment of the present invention;

fig. 5 is a transverse cross-sectional view of a fixation segment in an embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the wind power generation device comprises a fixed section 1, a swing arm section 2, an auxiliary wind receiving plate 3, a connecting groove 4, a roller 5, a rotating shaft 6, a transmission gear 7, a transmission block 8, a connecting column 9, a ring seat 10, a limiting rod 11, a limiting block 12, a cylindrical cavity 13, an arc-shaped groove 14, a driving rod 15, a driving groove 16, a connecting plate 17, a connecting cavity 18, an electromagnet 19, a limiting bolt 20, a limiting opening 21, a driving motor 22, a driving gear 23, a driven gear 24 and an embedded groove 25.

Examples

As shown in fig. 1, 2, 3, 4 and 5:

an anti-wind type wind power blade comprises a fixed section 1 and a swing arm section 2, wherein the middle part of the fixed section 1 is hollow, through grooves are symmetrically formed in the upper end and the lower end of the fixed section 1, auxiliary wind receiving plates 3 are connected into the through grooves in a sliding mode, and connecting grooves 4 which are inclined outwards are formed in the side faces of the auxiliary wind receiving plates 3; a transmission block 8 is axially and slidably connected in the fixed section 1, connecting columns 9 are fixedly arranged at two ends of the transmission block 8, the connecting columns 9 are rotatably connected with rollers 5, the rollers 5 are connected in the connecting grooves 4 in a rolling manner, and embedded grooves 25 for accommodating the auxiliary air receiving plates 3 are formed in two ends of the transmission block 8; one side of the end part of the fixed section 1 is rotatably connected with a vertically arranged rotating shaft 6, the swing arm section 2 is fixedly connected on the rotating shaft 6, and a driving device for driving the rotating shaft 6 to rotate is arranged in the connecting cavity 18; a coaxial transmission gear 7 is fixed on the rotating shaft 6, and teeth meshed with the transmission gear 7 are arranged on the side wall of the transmission block 8.

In a breeze state, the auxiliary wind receiving plate 3 extends out of the fixed section 1 to play a role in increasing the windward side, so that the utilization rate of a wind field is increased; under the strong wind state, the driving device and the rotating shaft 6 are utilized to enable the swing arm section 2 to swing to be attached to the fixed section 1, the windward side is reduced, the stress of the blades is greatly reduced, and therefore the risk of damage to the blades and the overall overturning of the wind power device is reduced; when the rotating shaft 6 rotates, the transmission block 8 is driven to move towards the direction of the swing arm section 2 through the meshing between the transmission gear 7 and the transmission block 8, the transmission block 8 is matched with the roller 5 through the connecting column 9, the auxiliary wind receiving plate 3 is extruded, the auxiliary wind receiving plate 3 slides back into the fixed section 1, the windward side is further reduced, the end part of the auxiliary wind receiving plate 3 slides into the embedded groove 25 at the moment, the auxiliary wind receiving plate 3 is connected with the transmission block 8 in a forming mode, the shearing strength of the fixed section 1 is improved, and the risk that blades are blown off by strong wind is further reduced. When the wind power is reduced, the swing arm section 2 swings reversely to be unfolded through the reverse rotation of the driving device and the rotating shaft 6, the transmission block 8 is driven to move towards the direction far away from the swing arm section 2 through the engagement between the transmission gear 7 and the transmission block 8 when the rotating shaft 6 rotates reversely, the transmission block 8 pushes the auxiliary wind receiving plate 3 through the matching of the connecting column 9 and the roller 5, so that the auxiliary wind receiving plate 3 slides out of the fixed section 1, the starting point increases the effect of the windward side, the weak wind is utilized, and the power generation efficiency is improved. In addition, after the swing arm section 2 is folded, the space occupied by the blades is reduced, and the effect of convenient transportation is achieved.

Optionally, the inner wall of the fixed section 1 is rotatably connected with a coaxial ring seat 10, the end face of the ring seat 10 is fixed with a plurality of limiting rods 11 facing the swing arm section 2, the end parts of the limiting rods 11 are slidably connected with limiting blocks 12 facing the fixed section 1, a return spring is arranged between the limiting blocks 12 and the limiting rods 11, and the end face of the limiting block 12 facing the swing arm section 2 is an arc-shaped face; the end part of the swing arm section 2 is provided with a cylindrical cavity 13 with a coaxial line, the inner wall of the cylindrical cavity 13 is provided with a plurality of limiting grooves corresponding to the limiting blocks 12, a plurality of arc-shaped grooves 14 with the same central axis are distributed in a circular array in the cylindrical cavity 13, the arc-shaped grooves 14 are communicated with the corresponding limiting grooves, and one side of each arc-shaped groove 14 facing the fixed section 1 penetrates through the swing arm section 2; a plurality of driving rods 15 are fixed on the outer side of the transmission block 8, a plurality of driving grooves 16 corresponding to the driving rods 15 are formed in the inner side of the ring seat 10, and the driving grooves 16 are spirally bent.

When the rotating shaft 6 drives the swing arm section 2 to fold, the conducting block 8 moves towards the swing arm section 2, the conducting block 8 enables the ring seat 10 to rotate through the matching between the driving rod 15 and the driving groove 16, the ring seat 10 drives the limiting rod 11 and the limiting block 12 to rotate, the limiting block 12 slides into the arc-shaped groove 14 from the limiting groove, and the limiting block 12 stops limiting the swing arm section 2, so that the swing arm section 2 can deflect and fold; when pivot 6 drive swing arm section 2 expandes, conduction block 8 moves towards the direction of keeping away from swing arm section 2, conduction block 8 makes ring seat 10 antiport through the cooperation between actuating lever 15 and the drive groove 16, make gag lever post 11 and stopper 12 turn back the initial position, swing arm section 2 expandes the back, stopper 12 of gag lever post 11 tip inserts in swing arm section 2, the inside arcwall face of extrusion stopper 12 of swing arm section 2, make stopper 12 slide back in gag lever post 11, until stopper 12 is relative with the spacing groove, stopper 12 slides out stopper 11 and inserts in the spacing groove under the effect of reset spring (technical staff conventional technical means in the art, therefore do not draw in the figure), thereby stabilize the connection between swing arm section 2 and the fixed segment 1.

Optionally, sliding grooves are formed in two sides of the inside of the fixed section 1 along the axial direction, connecting plates 17 are fixed on two sides of the conducting block 8, and the connecting plates 17 are connected in the corresponding sliding grooves in a sliding mode.

Through the cooperation between spout and connecting plate 17, make conduction piece 8 can slide along the axial in fixed section 1, and can not take place to deflect.

Optionally, a connecting cavity 18 is formed in the side wall of the fixed section 1, an electromagnet 19 (the electromagnet 19 is powered by a wind generating set) is slidably connected in the connecting cavity 18, a limit bolt 20 extending into the fixed section 1 is fixed to one end of the electromagnet 19 facing the conducting block 8, a reset spring is fixed between the electromagnet 19 and the connecting cavity 18, the end of the limit bolt 20 is U-shaped, and a limit opening 21 corresponding to the end of the limit bolt 20 is formed in the auxiliary wind receiving plate 3.

When the swing arm section 2 is in a folding state, the electromagnet 19 is used for simultaneously adsorbing the fixed section 1 and the swing arm section 2, so that the effect of stabilizing the swing arm section 2 is achieved, and the swing arm section 2 is prevented from swinging under the influence of strong wind to cause damage to structures such as the rotating shaft 6 and the like; when the swing arm section 2 is folded, the swing arm section 2 extrudes the electromagnet 19 to slide towards the inside of the fixed section 1, the electromagnet 19 pushes the U-shaped end part of the limiting bolt 20 to insert into the limiting port 21 of the auxiliary air receiving plate 3, so that the auxiliary air receiving plate 3 is limited vertically, and the auxiliary air receiving plate 3 is prevented from sliding out of the fixed section 1 under the influence of centrifugal force in the blade rotating process.

Optionally, the driving device includes a driving motor 22 fixed inside the fixed section 1 (the electromagnet 19 is powered by the wind turbine generator set), a driving gear 23 is fixed on an output end of the driving motor 22, and a driven gear 24 engaged with the driving gear 23 is fixed on the rotating shaft 6.

The driving motor 22 is engaged with the driven gear 24 through the driving gear 23 to drive the rotation shaft 6 to rotate.

Optionally, end surfaces of the auxiliary wind receiving plates 3 far away from the fixed section 1 are all arc-shaped.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.