CN215720380U

CN215720380U - Brake device of wind driven generator

Info

Publication number: CN215720380U
Application number: CN202121604729.1U
Authority: CN
Inventors: 苏电鹏; 张梦娜
Original assignee: Jiangsu Shenghuang New Energy Technology Co ltd
Current assignee: Jiangsu Shenghuang New Energy Technology Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2022-02-01
Anticipated expiration: 2031-07-15

Abstract

The utility model relates to the technical field of wind driven generators, in particular to a brake device of a wind driven generator. It has solved the problem that current device is not convenient for carry out the speed reduction to the rotation of blade. It includes the wind-force axle, the cover is equipped with and rotates the cover on the wind-force axle, the circumference that rotates the cover is equipped with the blade, the epaxial coaxial spacing dish that has linked firmly of wind-force, one side sliding connection in spacing dish lateral wall of wind-force axle, the opposite side of wind-force axle has linked firmly the brake axle coaxially, the cover is equipped with the brake cover on the brake axle, there is the clearance between brake cover and the rotation cover, the ring channel has been seted up on the brake cover, the ring channel endotheca is equipped with the brake disc, be equipped with expanding spring in the ring channel, expanding spring's both ends act on the inner wall of brake disc and ring channel respectively, the one end that expanding spring was kept away from to the brake disc acts on and rotates to sheathe in. The utility model supports the rotating sleeve, avoids the rotating sleeve from swinging greatly, is beneficial to reducing the speed of the rotation of the blade and preventing the blade from being damaged, thereby prolonging the service life of the blade.

Description

Brake device of wind driven generator

Technical Field

The utility model relates to the technical field of wind driven generators, in particular to a brake device of a wind driven generator.

Background

Energy and environment are two major problems to be solved by human beings at present, and an energy structure mainly based on clean and renewable energy becomes necessary for future development. Wind energy is increasingly gaining attention as a clean renewable energy source in all countries of the world. The method has huge energy, the country pays attention to a new energy strategy, the wind power industry rises rapidly in China, and most of domestic manufacturers introduce foreign technology for production. Wind energy is increasingly gaining attention as a clean renewable energy source in all countries of the world. The energy storage capacity is huge, the global wind energy is about 2.74 multiplied by 109MW, and the available wind energy is 2 multiplied by 107MW which is 10 times larger than the total amount of water energy which can be developed and utilized on the earth. The wind energy reserve of China is very large and wide in distribution, and the land-only wind energy reserve is about 2.53 hundred million kilowatts.

However, the rotational inertia of the wind turbine generator is very large, and the braking torque requirement during initial braking is very large, and if no additional device is provided, the requirement cannot be met by only manually braking, so that a braking device is required to be used in the wind turbine generator.

Disclosure of Invention

The utility model provides a brake device of a wind driven generator, which is beneficial to reducing the speed of the rotation of a blade and preventing the blade from being damaged.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a aerogenerator's brake equipment, includes the wind-force axle, the epaxial cover of wind-force is equipped with and rotates the cover, the circumference that rotates the cover is equipped with the blade, the epaxial coaxial spacing dish that has linked firmly of wind-force, one side sliding connection in spacing dish lateral wall of wind-force axle, the coaxial brake axle that has linked firmly of opposite side of wind-force axle, the epaxial cover of brake is equipped with the brake cover, there is the clearance between brake cover and the rotation cover, the ring channel has been seted up on the brake cover, the ring channel endotheca is equipped with the brake disc, be equipped with expanding spring in the ring channel, expanding spring's both ends act on the inner wall of brake disc and ring channel respectively, expanding spring's one end is kept away from to the brake disc acts on and rotates to sheathe cover.

Furthermore, one side of the brake disc close to the rotating sleeve is provided with an annular supporting groove, a rubber gasket is arranged in the supporting groove, and the rubber gasket acts on the inner wall of the annular groove.

Furthermore, the outer end of the brake disc close to one side of the rotating sleeve is provided with a boss, and the boss is made of plastic.

Furthermore, the brake sleeve is provided with an anti-falling groove, the brake shaft is provided with an anti-falling block, and the anti-falling block is rotatably matched in the anti-falling groove.

Furthermore, an outer air guide cover is arranged on the brake shaft, an inner air guide cover is arranged on the brake disc, and the bottom end of the inner air guide cover is positioned in the outer air guide cover.

The utility model has the beneficial effects that:

1. when wind power is normal, the blades normally rotate, the telescopic springs are in a normal state, and the gap between the brake sleeve and the rotating sleeve is kept between 1 and 5MM, so that the normal work of the blades is facilitated; when wind power is too large, the blades swing to a large extent and move towards the brake sleeve, then the blades lean against the brake sleeve to drive the brake sleeve to compress the telescopic spring, the rotary sleeve is supported through the telescopic spring, the swing amplitude of the force rotary sleeve is controlled, the rotary sleeve is prevented from swinging to a large extent, the rotation of the blades is decelerated, the blades are prevented from being damaged, and therefore the service life of the blades is prolonged.

2. The anti-drop groove is formed, and the anti-drop block is arranged on the brake shaft and is rotatably matched in the anti-drop groove. The brake disc rotates around the circumferential direction of the brake shaft, and the anti-drop groove limits the brake disc to move along the axial direction of the brake shaft, so that the gap between the brake disc and the rotating sleeve is accurately controlled, and the speed reduction effect of the blades is effectively guaranteed.

Drawings

FIG. 1 is a schematic structural view of a brake device of the wind driven generator;

FIG. 2 is a sectional view of the brake device of the wind power generator;

description of reference numerals:

1. a wind axis; 2. rotating the sleeve; 3. a blade; 4. a limiting disc; 5. a brake shaft; 6. a brake sleeve; 7. an annular groove; 8. a brake disc; 9. a tension spring; 10. a support groove; 11. a rubber gasket; 12. a boss; 13. a drop-proof groove; 14. an anti-drop block; 15. an outer wind scooper; 16. an inner wind scooper.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1-2, a brake device of a wind driven generator, including wind shaft 1, the cover is equipped with rotating sleeve 2 on the wind shaft 1, the circumference of rotating sleeve 2 is equipped with blade 3, the coaxial spacing dish 4 that has linked firmly on the wind shaft 1, one side sliding connection in spacing 4 lateral walls of dish of wind shaft 1, the coaxial brake shaft 5 that has linked firmly of opposite side of wind shaft 1, the cover is equipped with brake cover 6 on the brake shaft 5, there is the clearance between brake cover 6 and the rotating sleeve 2, the last ring channel 7 that has seted up of brake cover 6, the ring channel 7 endotheca is equipped with brake disc 8, be equipped with expanding spring 9 in the ring channel 7, the both ends of expanding spring 9 act on the inner wall of brake disc 8 and ring channel 7 respectively, the one end that expanding spring 9 was kept away from to brake disc 8 acts on rotating sleeve 2.

As shown in fig. 2, when the wind power is normal, the blade 3 rotates normally, the extension spring 9 is in a normal state, and the gap between the brake sleeve 6 and the rotating sleeve 2 is kept at 1-5MM, which is beneficial to the normal operation of the blade 3; when wind-force is too big, blade 3 swing by a wide margin and to brake cover 6 removal, support afterwards and lean on brake cover 6, drive brake cover 6 compression expanding spring 9, support rotating sleeve 2 through expanding spring 9, the swing range of control power rotating sleeve 2 avoids rotating sleeve 2 to swing by a wide margin, does benefit to and slows down the rotation of blade 3, prevents that blade 3 from damaging to the life of extension blade 3.

As shown in fig. 1-2, an annular supporting groove 10 is formed in one side of the brake disc 8 close to the rotating sleeve 2, a rubber gasket 11 is arranged in the supporting groove 10, and the rubber gasket 11 acts on the inner wall of the annular groove 7. The brake disc 8 is supported through the rubber gasket 11, so that the abrasion of the brake disc 8 is effectively reduced, and the service life of the brake disc 8 is prolonged.

As shown in fig. 2, the outer end of the brake disc 8 near the rotating sleeve 2 is provided with a boss 12, and the boss 12 is made of plastic. The brake disc 8 is contacted with the rotating disc through the lug boss 12, so that the abrasion of the brake disc 8 is reduced conveniently, and the service life of the brake disc 8 is prolonged.

An anti-falling groove 13 is formed in the brake sleeve 6, an anti-falling block 14 is arranged on the brake shaft 5, and the anti-falling block 14 is matched in the anti-falling groove 13 in a rotating mode.

As shown in fig. 2, the brake disc 8 rotates circumferentially around the brake shaft 5, and the anti-drop groove 13 limits the brake disc 8 to move axially along the brake shaft 5, so that the gap between the brake disc 8 and the rotating sleeve 2 is accurately controlled, and the deceleration effect on the blades 3 is effectively guaranteed; wherein, a balancing weight (not marked in the figure) can be arranged at the outer side of the brake disc 8, which is beneficial to reducing the rotation amplitude of the brake disc 8.

The brake shaft 5 is provided with an outer wind guide cover 15, the brake disc 8 is provided with an inner wind guide cover 16, and the bottom end of the inner wind guide cover 16 is positioned in the outer wind guide cover 15. The wind power flows to the blades 3 along the outer wind scooper 15 and the inner wind scooper 16, so that the wind power is guided conveniently, and the effective conversion rate of the wind power is improved; the bottom end of the inner wind guide cover 16 is positioned in the outer wind guide cover 15, the axial distance of the part of the inner wind guide cover 16 extending into the outer wind guide noise is larger than the gap between the brake disc 8 and the rotating sleeve 2, and the wind power can be effectively guided in the moving process of the rotating sleeve 2.

All the technical features in the embodiment can be freely combined according to actual needs.

The above embodiments are preferred implementations of the present invention, and other implementations are also included, and any obvious substitutions are within the scope of the present invention without departing from the spirit of the present invention.

Claims

1. The utility model provides a brake equipment of aerogenerator, includes wind shaft (1), the cover is equipped with and rotates cover (2) on wind shaft (1), the circumference of rotating cover (2) is equipped with blade (3), its characterized in that, the coaxial spacing dish (4) that has linked firmly on wind shaft (1), one side sliding connection in spacing dish (4) lateral wall of wind shaft (1), the opposite side coaxial of wind shaft (1) has linked firmly brake axle (5), the cover is equipped with brake cover (6) on brake axle (5), there is the clearance between brake cover (6) and the rotation cover (2), ring channel (7) have been seted up on brake cover (6), ring channel (7) endotheca is equipped with brake disc (8), be equipped with expanding spring (9) in ring channel (7), the both ends of expanding spring (9) act on the inner wall of brake disc (8) and ring channel (7) respectively, one end of the brake disc (8) far away from the telescopic spring (9) acts on the rotating sleeve (2).

2. The brake device of the wind driven generator according to claim 1, characterized in that one side of the brake disc (8) close to the rotating sleeve (2) is provided with an annular support groove (10), a rubber gasket (11) is arranged in the support groove (10), and the rubber gasket (11) acts on the inner wall of the annular groove (7).

3. Brake device for wind power generator according to claim 2, characterized in that the brake disc (8) has a boss (12) at its outer end near the side of the rotating sleeve (2), and the boss (12) is made of plastic.

4. The brake device of the wind driven generator according to claim 1, wherein the brake sleeve (6) is provided with an anti-drop groove (13), the brake shaft (5) is provided with an anti-drop block (14), and the anti-drop block (14) is rotatably fitted in the anti-drop groove (13).

5. The brake device of the wind driven generator according to claim 4, wherein the brake shaft (5) is provided with an outer wind scooper (15), the brake disc (8) is provided with an inner wind scooper (16), and the bottom end of the inner wind scooper (16) is located in the outer wind scooper (15).