阅读说明：本技术 一种用于风力发电的保护装置 (Protection device for wind power generation ) 是由 田福来 于 2021-01-21 设计创作，主要内容包括：本发明涉及一种用于风力发电的保护装置,包括保护箱、发电机构、驱动机构和密封机构,所述发电机构包括发电机、转杆、移动杆、限位块和转动板,所述驱动机构包括电机、丝杆和从动组件,所述密封机构包括第一定滑轮、第二定滑轮、第三定滑轮、拉绳、密封板、定位块和弹簧,该用于风力发电的保护装置通过驱动机构实现对移动杆的移动,使得位于移动杆上的转动板移动至保护箱内,从而防止风沙的侵袭,实现对转动板的保护,同时通过密封机构实现对保护箱的密封,防止风沙进入保护箱内对内部的元器件造成损坏,提高使用寿命,这里通过同一驱动源实现对多个机构的联动,提高了使用的实用性。(The invention relates to a protection device for wind power generation, which comprises a protection box, a power generation mechanism, a driving mechanism and a sealing mechanism, wherein the power generation mechanism comprises a generator, a rotating rod, a moving rod, a limiting block and a rotating plate, the driving mechanism comprises a motor, a screw rod and a driven assembly, the sealing mechanism comprises a first fixed pulley, a second fixed pulley, a third fixed pulley, a pull rope, a sealing plate, a positioning block and a spring, the protection device for wind power generation realizes the movement of the moving rod through the driving mechanism, so that the rotating plate on the moving rod moves into the protection box, thereby preventing the invasion of wind and sand and realizing the protection of the rotating plate, simultaneously realizes the sealing of the protection box through the sealing mechanism, prevents the wind and sand from entering the protection box to damage internal components and improves the service life, and realizes the linkage of a plurality of mechanisms through the same driving source, the practicability of use is improved.)

1. The protection device for wind power generation is characterized by comprising a protection box (1), a power generation mechanism, a driving mechanism and a sealing mechanism, wherein the protection box (1) is horizontally arranged, the power generation mechanism and the driving mechanism are both arranged in the protection box (1), and the sealing mechanism is arranged on one side of the protection box (1);

the power generation mechanism comprises a power generator (2), a rotating rod (3), a moving rod (4), a limiting block (5) and a rotating plate (6), wherein the power generator (2) is horizontally arranged at one side of the inner bottom end of a protective box (1), the rotating rod (3) is horizontally arranged in the protective box (1), the rotating rod (3) is installed on the power generator (2), the rotating plate (6) is arranged at one side of the protective box (1) far away from the power generator (2), the moving rod (4) is arranged between the rotating rod (3) and the rotating plate (6), a through hole is formed in one side of the protective box (1) far away from the power generator (2), the rotating rod (3) is arranged in a hollow mode, one end of the moving rod (4) is arranged at one side of the protective box (1) through the through hole, the other end of the moving rod (4) extends into the rotating rod (3), and the limiting block (5) is arranged in the rotating rod (3), the number of the limiting blocks (5) is two, the two limiting blocks (5) are respectively arranged at two ends of the moving rod (4), two strip-shaped limiting grooves are formed in the inner wall of the rotating rod (3), one end of each limiting block (5) is connected with the moving rod (4), the other end of each limiting block (5) is located in each limiting groove, the moving rod (4) is connected with the limiting grooves in a sliding mode through the limiting blocks (5), the rotating plates (6) are provided with a plurality of blocks, each rotating plate (6) is evenly arranged along the circumferential direction of the axis of the moving rod (4), the rotating plates (6) are hinged to the moving rod (4), torsion springs are arranged at the hinged positions of the rotating plates (6) and the moving rod (4), and the rotating plates (6) are connected with the through holes in a sliding mode;

the driving mechanism is arranged on one side of the top end in the protection box (1), the driving mechanism comprises a motor (7), a screw rod (8) and a driven assembly, the motor (7) is horizontally arranged on one side of the top end in the protection box (1), the motor (7) is positioned above the generator (2), the screw rod (8) is horizontally arranged in the protection box (1), the screw rod (8) is installed on the motor (7), and the screw rod (8) is parallel to the rotating rod (3);

the driven assembly is arranged between a screw rod (8) and a moving rod (4), the driven assembly comprises a connecting cylinder (9), a first bearing (10), a second bearing (11), a third bearing (12) and a connecting rod (13), inner circles of the first bearing (10) and the second bearing (11) are respectively provided with an internal thread matched with the screw rod (8), the first bearing (10) and the second bearing (11) are sleeved on the screw rod (8), the first bearing (10) is in transmission connection with the screw rod (8), the second bearing (11) is in transmission connection with the screw rod (8), the connecting cylinder (9) is arranged between the first bearing (10) and the second bearing (11), the connecting cylinder (9) is sleeved on the screw rod (8), the connecting cylinder (9) is in sliding connection with the screw rod (8), one end of the connecting cylinder (9) is connected with the end face of the inner circle of the first bearing (10), the other end of the connecting cylinder (9) is connected with the end face of the inner ring of the seat of the second bearing (11), the third bearing (12) is sleeved on the moving rod (4), the inner ring of the third bearing (12) is fixedly connected with the outer ring of the moving rod (4), the third bearing (12) is positioned below the second bearing (11), the connecting rod (13) is arranged between the second bearing (11) and the third bearing (12), one end of the connecting rod (13) is connected with the outer ring of the second bearing (11), and the other end of the connecting rod (13) is connected with the outer ring of the third bearing (12);

the sealing mechanism comprises a first fixed pulley (14), a second fixed pulley (15), a third fixed pulley (16), a pull rope (17), a sealing plate (18), a positioning block (20) and a spring (19), wherein the first fixed pulley is arranged at the top end inside the protective box (1), the second fixed pulley (15) is arranged at the top end of the protective box (1), the third fixed pulley (16) is arranged at one end, far away from the motor (7), of the protective box (1), a vertical positioning groove is formed in one side, far away from the motor (7), of the protective box (1), the positioning block (20) is positioned in the positioning groove, the positioning block (20) is in sliding connection with the positioning groove, the sealing plate (18) is vertically arranged on one side of the positioning block (20), the sealing plate (18) is in sliding connection with the positioning groove through the positioning block (20), and the sealing plate (18) is positioned above the through hole, the sealing plate (18) is connected with the through hole in a sealing mode, the spring (19) is vertically arranged in the positioning groove, the top end of the spring (19) is connected with the positioning block (20), the bottom end of the spring (19) is connected with the end face of the bottom end in the positioning groove, the pull rope (17) is arranged between the first bearing (10) and the sealing plate (18), one end of the pull rope (17) is connected with the outer ring of the first bearing (10), and the other end of the pull rope (17) is connected with the top end of the sealing plate (18) sequentially through the first fixed pulley (14), the protection box (1), the second fixed pulley (15) and the third fixed pulley (16);

the top end of the protection box (1) is provided with an air speed sensor (25), and the air speed sensor (25) and the motor (7) are controlled by a PLC.

2. The protector for wind power generation of claim 1, wherein the cross-section of the positioning slot is dovetail-shaped.

3. The protection device for wind power generation according to claim 1, characterized in that said rotating rod (3) is provided with a fan (21).

4. The protection device for wind power generation according to claim 1, wherein a cleaning component is arranged at one end of the first bearing (10) far away from the connecting cylinder (9), the cleaning component comprises a brush (22) and a rotating ring (23), the rotating ring (23) is sleeved on the screw rod (8), the rotating ring (23) is connected with the screw rod (8) in a sliding manner, one end of the rotating ring (23) is connected with the end face of the inner ring of the first bearing (10), the brush (22) is arranged in the rotating ring (23), one end of the brush (22) abuts against the screw rod (8), and the other end of the brush (22) is connected with the inner wall of the rotating ring (23).

5. The protection device for wind power generation according to claim 1, characterized in that said screw (8) is coated with a lubricant.

6. The protection device for wind power generation according to claim 1, wherein the bottom end of the side of the protection box (1) away from the motor (7) is provided with an abutment block (24), and the bottom end of the sealing plate (18) abuts against the abutment block (24).

7. The protection device for wind power generation according to claim 6, wherein said abutment block (24) is provided with an abutment groove in which said sealing plate (18) is located.

8. The protection device for wind power generation according to claim 1, wherein said pull rope (17) is a steel wire rope.

9. The protector for wind power generation of claim 1, wherein the through hole is chamfered.

10. The protection device for wind power generation according to claim 1, wherein the first fixed pulley (14), the second fixed pulley (15) and the third fixed pulley (16) are provided with annular guide grooves, and the pull rope (17) is positioned in the guide grooves.

Technical Field

The invention relates in particular to a protection device for wind power generation.

Background

With the continuous development of science and technology, people are dedicated to research on the development of new energy sources such as wind energy, electric energy, ocean energy and the like, wind power generation is widely used in recent years, wind generating sets are generally arranged in places with severe environments, such as deserts and the like, blades are easily damaged due to wind and sand when being in the severe environments for a long time, and are difficult to maintain after being damaged, so that the service life of the blades is shortened.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, a protection device for wind power generation is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a protection device for wind power generation comprises a protection box, a power generation mechanism, a driving mechanism and a sealing mechanism, wherein the protection box is horizontally arranged, the power generation mechanism and the driving mechanism are both arranged in the protection box, and the sealing mechanism is arranged on one side of the protection box;

the power generation mechanism comprises a power generator, a rotating rod, a moving rod, limiting blocks and a rotating plate, wherein the power generator is horizontally arranged on one side of the bottom end in a protective box, the rotating rod is horizontally arranged in the protective box, the rotating rod is installed on the power generator, the rotating plate is arranged on one side, away from the power generator, of the protective box, the moving rod is arranged between the rotating rod and the rotating plate, a through hole is formed in one side, away from the power generator, of the protective box, the rotating rod is arranged in a hollow mode, one end of the moving rod is arranged on one side of the protective box through the through hole, the other end of the moving rod extends into the rotating rod, the limiting blocks are arranged in the rotating rod, two limiting blocks are arranged at two ends of the moving rod respectively, two strip-shaped limiting grooves are formed in the inner wall of the rotating rod, one end of each limiting block is connected with the moving rod, the moving rod is connected with the limiting groove in a sliding mode through a limiting block, the rotating plates are provided with a plurality of blocks, the rotating plates are uniformly arranged along the circumferential direction of the axis of the moving rod, the rotating plates are hinged with the moving rod, torsion springs are arranged at the hinged positions of the rotating plates and the moving rod, and the rotating plates are connected with the through holes in a sliding mode;

the driving mechanism is arranged on one side of the top end in the protective box and comprises a motor, a screw rod and a driven assembly, the motor is horizontally arranged on one side of the top end in the protective box, the motor is positioned above the generator, the screw rod is horizontally arranged in the protective box and is arranged on the motor, and the screw rod is parallel to the rotating rod;

the driven assembly is arranged between the screw rod and the moving rod and comprises a connecting cylinder, a first bearing, a second bearing, a third bearing and a connecting rod, internal threads matched with the screw rod are arranged on the inner rings of the first bearing and the second bearing respectively, the first bearing and the second bearing are sleeved on the screw rod and are connected with the screw rod in a transmission manner, the second bearing is connected with the screw rod in a transmission manner, the connecting cylinder is arranged between the first bearing and the second bearing and is sleeved on the screw rod, the connecting cylinder is connected with the screw rod in a sliding manner, one end of the connecting cylinder is connected with the end face of the inner ring of the first bearing, the other end of the connecting cylinder is connected with the end face of the inner ring of the second bearing, the third bearing is sleeved on the moving rod, the inner ring of the third bearing is fixedly connected with the outer ring of the moving rod, and the third bearing is arranged below the second bearing, the connecting rod is arranged between the second bearing and the third bearing, one end of the connecting rod is connected with the outer ring of the second bearing, and the other end of the connecting rod is connected with the outer ring of the third bearing;

the sealing mechanism comprises a first fixed pulley, a second fixed pulley, a third fixed pulley, a pull rope, a sealing plate, a positioning block and a spring, wherein the first movable pulley is arranged at the top end inside the protective box, the second fixed pulley is arranged at the top end of the protective box, the third fixed pulley is arranged at one end, away from the motor, of the protective box, a vertical positioning groove is formed in one side, away from the motor, of the protective box, the positioning block is positioned in the positioning groove, the positioning block is in sliding connection with the positioning groove, the sealing plate is vertically arranged at one side of the positioning block, the sealing plate is in sliding connection with the positioning groove through the positioning block, the sealing plate is positioned above the through hole, the sealing plate is in sealing connection with the through hole, the spring is vertically arranged in the positioning groove, the top end of the spring is connected with the positioning block, the bottom end of the spring is connected with the end, one end of the pull rope is connected with the outer ring of the first bearing, and the other end of the pull rope is connected with the top end of the sealing plate through a first fixed pulley, a protection box, a second fixed pulley and a third fixed pulley in sequence;

the top end of the protection box is provided with an air speed sensor, and the air speed sensor and the motor are controlled by a PLC.

In order to limit the sealing plate, the cross section of the positioning groove is dovetail-shaped.

In order to realize the heat dissipation of the motor and the generator, the rotating rod is provided with a fan.

In order to realize the cleanness to the lead screw, the one end that the connecting cylinder was kept away from to first bearing is equipped with clean subassembly, clean subassembly includes brush and swivel becket, the swivel becket cover is established on the lead screw, swivel becket and lead screw sliding connection, the one end of swivel becket is connected with the terminal surface of the inner circle of first bearing, the brush sets up in the swivel becket, the one end and the lead screw of brush support and lean on, the other end and the inner wall connection of swivel becket of brush.

In order to facilitate the rotation, the screw rod is coated with lubricating oil.

In order to realize the spacing to the closing plate, the bottom of one side that the motor was kept away from to the guard box is equipped with supports and leans on the piece, the bottom of closing plate with support and lean on the piece and lean on.

In order to prevent the movement of the sealing plate, an abutting groove is arranged on the abutting block, and the sealing plate is positioned in the abutting groove.

In order to prolong the service life, the pull rope is a steel wire rope.

In order to facilitate the recovery of the rotating plate, the through hole is provided with a chamfer.

In order to limit the pull rope, annular guide grooves are formed in the first fixed pulley, the second fixed pulley and the third fixed pulley, and the pull rope is located in the guide grooves.

The protection device for wind power generation has the advantages that the moving rod is moved through the driving mechanism, the rotating plate on the moving rod is moved into the protection box, invasion of wind and sand is prevented, the rotating plate is protected, meanwhile, the protection box is sealed through the sealing mechanism, the wind and sand is prevented from entering the protection box to damage internal components, the service life is prolonged, linkage of multiple mechanisms is achieved through the same driving source, the practicability of use is improved, the second bearing is limited through the matching of the second bearing, the connecting rod and the third bearing, the second bearing can move on the screw rod, the third bearing can move, the rotation of the moving rod cannot be influenced through the rotation of the screw rod, and the screw rod and the moving rod can operate independently.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the protection device for wind power generation of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

FIG. 4 is a schematic view illustrating a coupling structure of a rotating ring and a brush of the protector for wind power generation according to the present invention;

in the figure: 1. the wind power generation device comprises a protection box, a generator, a rotating rod, a moving rod, a limiting block, a rotating plate, a motor, a screw rod, a connecting cylinder, a first bearing, a second bearing, a third bearing, a connecting rod, a first fixed pulley, a second fixed pulley, a spring, a positioning block, a fan, a brush, a rotating ring, a supporting block, a wind speed sensor and a wind speed sensor, wherein the protection box comprises 2 the generator, 3 the rotating rod, 4 the moving rod, 5 the limiting block, 6 the rotating plate, 7 the motor, 8 the screw rod, 9 the connecting cylinder, 10 the first bearing, 11 the second bearing, 12 the third bearing, 13 the connecting rod, 14.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1-2, a protection device for wind power generation comprises a protection box 1, a power generation mechanism, a driving mechanism and a sealing mechanism, wherein the protection box 1 is horizontally arranged, the power generation mechanism and the driving mechanism are both arranged in the protection box 1, and the sealing mechanism is arranged on one side of the protection box 1;

the power generation mechanism comprises a power generator 2, a rotating rod 3, a moving rod 4, limiting blocks 5 and a rotating plate 6, wherein the power generator 2 is horizontally arranged on one side of the bottom end in a protective box 1, the rotating rod 3 is horizontally arranged in the protective box 1, the rotating rod 3 is installed on the power generator 2, the rotating plate 6 is arranged on one side, away from the power generator 2, of the protective box 1, the moving rod 4 is arranged between the rotating rod 3 and the rotating plate 6, a through hole is formed in one side, away from the power generator 2, of the protective box 1, the rotating rod 3 is hollow, one end of the moving rod 4 is arranged on one side of the protective box 1 through the through hole, the other end of the moving rod 4 extends into the rotating rod 3, the limiting blocks 5 are arranged in the rotating rod 3, the limiting blocks 5 are two, the two limiting blocks 5 are respectively arranged at two ends of the moving rod 4, two strip-shaped limiting grooves are formed in, one end of the limiting block 5 is connected with the moving rod 4, the other end of the limiting block 5 is located in the limiting groove, the moving rod 4 is connected with the limiting groove in a sliding mode through the limiting block 5, the rotating plate 6 is provided with a plurality of rotating plates 6, the rotating plates 6 are uniformly arranged along the circumferential direction of the axis of the moving rod 4, the rotating plates 6 are hinged to the moving rod 4, torsion springs are arranged at the hinged positions of the rotating plates 6 and the moving rod 4, and the rotating plates 6 are connected with the through holes in a sliding mode;

the driving mechanism is arranged on one side of the top end in the protection box 1 and comprises a motor 7, a screw rod 8 and a driven assembly, the motor 7 is horizontally arranged on one side of the top end in the protection box 1, the motor 7 is positioned above the generator 2, the screw rod 8 is horizontally arranged in the protection box 1, the screw rod 8 is arranged on the motor 7, and the screw rod 8 is parallel to the rotating rod 3;

the driven assembly is arranged between a screw rod 8 and a moving rod 4 and comprises a connecting cylinder 9, a first bearing 10, a second bearing 11, a third bearing 12 and a connecting rod 13, internal threads matched with the screw rod 8 are respectively arranged on inner rings of the first bearing 10 and the second bearing 11, the first bearing 10 and the second bearing 11 are sleeved on the screw rod 8, the first bearing 10 is in transmission connection with the screw rod 8, the second bearing 11 is in transmission connection with the screw rod 8, the connecting cylinder 9 is arranged between the first bearing 10 and the second bearing 11, the connecting cylinder 9 is sleeved on the screw rod 8, the connecting cylinder 9 is in sliding connection with the screw rod 8, one end of the connecting cylinder 9 is connected with the end face of the inner ring of the first bearing 10, the other end of the connecting cylinder 9 is connected with the end face of the inner ring of a second bearing 11 seat, the third bearing 12 is sleeved on the moving rod 4, the inner circle of third bearing 12 and the outer lane fixed connection of carriage release lever 4, third bearing 12 is located the below of second bearing 11, connecting rod 13 sets up between second bearing 11 and third bearing 12, the one end of connecting rod 13 is connected with the outer lane of second bearing 11, the other end of connecting rod 13 is connected with the outer lane of third bearing 12.

When the rotating plate 6 needs to be recovered, firstly, the motor 7 is operated, the motor 7 drives the screw rod 8 to rotate, the screw rod 8 drives the first bearing 10 to move towards the motor 7, the first bearing 10 drives the connecting cylinder 9 to move, the connecting cylinder 9 drives the second bearing 11 to move, the second bearing 11 drives the connecting rod 13 to move, the connecting rod 13 drives the third bearing 12 to move, the third bearing 12 drives the moving rod 4 to move towards the generator 2, the moving rod 4 moves to enable the rotating plate 6 to move, the rotating rod 3 is enabled to abut against the through hole on the protection box 1, at the moment, the moving rod 4 is continuously moved to enable the rotating plate 6 to be located in the protection box 1, the rotating plate 6 is hinged with the moving rod 4, at the moment, when the first bearing 10 moves to the preset position, one end, far away from the moving rod 4, of the rotating plate 6 abuts against the inner wall of the through hole, at the moment, the end, which is located at the moment, preventing the locking.

As shown in fig. 3, the sealing mechanism includes a first fixed pulley 14, a second fixed pulley 15, a third fixed pulley 16, a pulling rope 17, a sealing plate 18, a positioning block 20 and a spring 19, the first movable pulley is disposed at the top end inside the protection box 1, the second fixed pulley 15 is disposed at the top end of the protection box 1, the third fixed pulley 16 is disposed at one end of the protection box 1 away from the motor 7, a vertical positioning groove is disposed at one side of the protection box 1 away from the motor 7, the positioning block 20 is located in the positioning groove, the positioning block 20 is slidably connected with the positioning groove, the sealing plate 18 is vertically disposed at one side of the positioning block 20, the sealing plate 18 is slidably connected with the positioning groove through the positioning block 20, the sealing plate 18 is located above the through hole, the sealing plate 18 is sealingly connected with the through hole, the spring 19 is vertically disposed in the positioning groove, and the top end of the spring 19 is connected, the bottom end of the spring 19 is connected with the end face of the bottom end in the positioning groove, the pull rope 17 is arranged between the first bearing 10 and the sealing plate 18, one end of the pull rope 17 is connected with the outer ring of the first bearing 10, and the other end of the pull rope 17 is connected with the top end of the sealing plate 18 sequentially through the first fixed pulley 14, the protective box 1, the second fixed pulley 15 and the third fixed pulley 16;

the top end of the protection box 1 is provided with an air speed sensor 25, and the air speed sensor 25 and the motor 7 are controlled by a PLC.

Meanwhile, the first bearing 10 enables the pull rope 17 to be loosened, the pull rope 17 can drive the sealing plate 18 to move towards the through hole when the pull rope 17 is loosened, the sealing plate 18 moves to drive the positioning block 20 to move, the positioning block 20 slides in the positioning groove, at the moment, the spring 19 is in a compressed state through the self gravity of the sealing plate 18, the sealing plate 18 moves through the self gravity, the spring 19 is used for supporting the sealing plate 18, the impact force when the sealing plate 18 descends is reduced, the rotating plate 6 or the moving rod 4 is prevented from being damaged, and the sealing plate 18 is abutted against the rotating plate 6 in a specific time, so that the rotating plate 6 can be better moved into the protection box 1, and meanwhile, the moving rod 4 can be rotated.

In order to limit the sealing plate 18, the cross-section of the positioning slot is dovetail-shaped.

The dovetail shape serves to limit the position of the sealing plate 18 so that the sealing plate 18 can only move along the positioning groove.

In order to realize the heat dissipation of the motor 7 and the generator 2, a fan 21 is arranged on the rotating rod 3.

The fan 21 has the functions of realizing heat dissipation of the motor 7 and the generator 2 and preventing overhigh temperature caused by long-time work, thereby burning out internal components and prolonging the service life.

As shown in fig. 4, in order to realize the cleaning of the screw rod 8, one end of the first bearing 10, which is far away from the connecting cylinder 9, is provided with a cleaning assembly, the cleaning assembly comprises a brush 22 and a rotating ring 23, the rotating ring 23 is sleeved on the screw rod 8, the rotating ring 23 is slidably connected with the screw rod 8, one end of the rotating ring 23 is connected with the end surface of the inner ring of the first bearing 10, the brush 22 is arranged in the rotating ring 23, one end of the brush 22 is abutted against the screw rod 8, and the other end of the brush 22 is connected with the inner wall of the rotating ring 23.

The brush 22 is used for cleaning the screw rod 8, the brush 22 is connected with the first bearing 10 through the rotating ring 23, the brush 22 can rotate, the brush 22 can be better cleaned of the screw rod 8, cleaning efficiency is improved, and sand and stones are prevented from being adhered to the screw rod 8 and affecting rotation of the screw rod 8.

In order to facilitate the rotation, the screw 8 is coated with lubricating oil.

The function of the lubricating oil is to reduce friction so that the first bearing 10 moves better on the screw 8.

In order to limit the position of the sealing plate 18, the bottom end of the side of the protection box 1 away from the motor 7 is provided with an abutting block 24, and the bottom end of the sealing plate 18 abuts against the abutting block 24.

The effect of the abutting block 24 realizes the limitation of the sealing plate 18, prevents the stay cord 17 from being always in a tightening state, realizes the protection of the stay cord 17, and realizes the limitation of the sealing plate 18.

To prevent movement of the seal plate 18, an abutment groove is provided on the abutment block 24, in which the seal plate 18 is located.

In order to prolong the service life, the pull rope 17 is a steel wire rope.

In order to facilitate the recovery of the rotating plate 6, the through hole is provided with a chamfer.

In order to limit the pulling rope 17, annular guide grooves are formed in the first fixed pulley 14, the second fixed pulley 15 and the third fixed pulley 16, and the pulling rope 17 is located in the guide grooves.

The guide way's effect is the realization to stay cord 17 spacing, prevents that stay cord 17 derails for the better realization of stay cord 17 is to the removal of closing plate 18.

When the wind speed sensor 25 senses that the wind power is large, a signal is sent to the motor 7, the motor 7 operates to enable the screw rod 8 to rotate, the screw rod 8 drives the first bearing 10 to move towards the motor 7, the first bearing 10 drives the connecting cylinder 9 to move, the connecting cylinder 9 drives the second bearing 11 to move, the second bearing 11 drives the connecting rod 13 to move, the connecting rod 13 drives the third bearing 12 to move, the third bearing 12 drives the movable rod 4 to move towards the generator 2, the movable rod 4 moves to enable the rotating plate 6 to move, the rotating rod 3 is enabled to abut against the through hole in the protection box 1, the movable rod 4 is continuously moved to enable the rotating plate 6 to be located in the protection box 1, the rotating plate 6 is hinged with the movable rod 4, when the first bearing 10 moves to the preset position, one end, far away from the movable rod 4, of the rotating plate 6 abuts against the inner wall of the through hole, the rotating plate 6 can be conveniently moved out of the protection box 1 to prevent the rotating plate from being stuck, meanwhile, the first bearing 10 enables the pull rope 17 to be loosened, the pull rope 17 can drive the sealing plate 18 to move towards the through hole due to the loosening, the sealing plate 18 moves to drive the positioning block 20 to move, the positioning block 20 slides in the positioning groove, the spring 19 is in a compressed state due to the self gravity of the sealing plate 18, the sealing plate 18 moves due to the self gravity, the spring 19 is used for supporting the sealing plate 18, the impact force generated when the sealing plate 18 descends is reduced, the rotating plate 6 or the moving rod 4 is prevented from being damaged, the sealing plate 18 is abutted against the rotating plate 6 in a specific time, and therefore the rotating plate 6 can be better moved into the protection box 1 and the moving rod 4 can be rotated.

First bearing 10 here rotates drive swivel 23 and rotates, swivel 23 drive brush 22 rotates, thereby make brush 22 better and realize the cleanness to lead screw 8, improve clean efficiency, prevent the sand and stone adhesion on lead screw 8, influence the rotation of lead screw 8, first bearing 10 here is the weight of self through sealing plate 18, make stay cord 17 be in the state of tightening, thereby make first bearing 10 better support with lead screw 8 and lean on, increase frictional force, make first bearing 10 better removal on lead screw 8.

Compared with the prior art, the protection device for wind power generation realizes the movement of the movable rod 4 through the driving mechanism, so that the rotating plate 6 on the movable rod 4 moves into the protection box 1, thereby preventing the invasion of the wind and sand, realizing the protection of the rotating plate 6, simultaneously realizing the sealing of the protection box 1 through the sealing mechanism, preventing the wind and sand from entering the protection box 1 to damage the internal components, prolonging the service life, the linkage of a plurality of mechanisms is realized by the same driving source, the practicability of the use is improved, the limit of the second bearing 11 is realized by the cooperation of the second bearing 11, the connecting rod 13 and the third bearing 12, so that the second bearing 11 can move on the screw rod 8, at the same time, the third bearing 12 can be displaced, wherein the rotation of the spindle 8 does not affect the rotation of the travel bar 4, so that the spindle 8 and the travel bar 4 can be operated independently.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.