CN219345330U

CN219345330U - Brake assembly of wind driven generator

Info

Publication number: CN219345330U
Application number: CN202320597243.2U
Authority: CN
Inventors: 孙伟荣
Original assignee: Wuxi Huaneng Equipment Technology Co ltd
Current assignee: Wuxi Huaneng Equipment Technology Co ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-07-14
Anticipated expiration: 2033-03-24

Abstract

The utility model relates to the technical field of wind power generator equipment, and provides a wind power generator brake assembly which comprises a fixed ring, wherein a rotating ring is rotatably connected in the fixed ring, an even number of sealing plates are arranged in the fixed ring, and two sealing plates, the inner side of the fixed ring and the outer wall of the rotating ring form an oil cavity. The utility model overcomes the defects of the prior art, has reasonable design and compact structure, the fan shaft drives the main brake block to rotate during braking, the rotating ring further rotates in the fixed ring, the reaction force born by the piston plate is gradually increased along with the change of the hydraulic oil quantity, the resistance of the main brake block to the fan shaft is further gradually increased, the fan shaft can not stop instantly during braking, the abrasion of the brake shaft and the brake piece is reduced, the service life of the brake piece is prolonged, the auxiliary brake block carries out secondary braking on the fan shaft, and the auxiliary brake block and the main brake block form two brake marks, so that the abrasion can be reduced, and the braking capability can be increased.

Description

Brake assembly of wind driven generator

Technical Field

The utility model relates to the technical field of wind power generator equipment, in particular to a wind power generator brake assembly.

Background

The wind generating set is a system for converting kinetic energy of wind into electric energy, the wind is utilized to drive the windmill blades to rotate, and the rotating speed is increased through the speed increaser to drive the generator to generate electricity, so that no fuel is required to be used, radiation and air pollution are avoided, and hot flashes are formed worldwide at present.

In the maintenance process of the wind driven generator, a brake disc is required to be used for locking the wind driven generator shaft, and in the process, the brake disc is seriously worn due to too fast speed reduction when the brake disc is extruded with the wind driven generator shaft, so that the service life of the brake disc is seriously influenced.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a wind driven generator brake assembly, which overcomes the defects of the prior art, has reasonable design and compact structure, and solves the problems that the brake pad is seriously worn and the service life of a brake disc is seriously influenced due to the fact that the speed of the existing fan shaft is reduced too fast when the existing fan shaft is braked.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the brake assembly of the wind driven generator comprises a fixed ring, wherein a rotating ring is rotationally connected in the fixed ring;

an even number of sealing plates are arranged in the fixed ring, and an oil cavity is formed by the two sealing plates, the inner side of the fixed ring and the outer wall of the rotating ring;

the outer wall fixedly connected with a plurality of ejector blades of swivel becket, the ejector blade is connected with the piston board through the arc pole, and this piston board and oil pocket sealed slip, a plurality of oilholes have been seted up from the top down in the piston board, the ejector blade is connected with one side of closing plate through supporting spring, the inboard of swivel becket is equipped with the brake piece.

Further, the inner chute of the brake piece is fixedly connected with the inner wall of the rotating ring, a sliding plate is connected in the chute in a sliding manner, a main brake block is fixedly connected to one side, away from the rotating ring, of the sliding plate, and the back of the main brake block is connected with the output end of the air cylinder.

Further, ring grooves matched with the protrusions in the fixing rings are formed in the front side and the rear side of the rotating ring.

Further, a push plate is connected to the back of the rotating ring, and the push plate is slidably connected to the inner wall of the fixed ring.

Still further, the inner wall fixedly connected with dead lever of solid fixed ring, the dead lever rotates and is connected with vice brake block, vice brake block passes through connecting spring and is connected with the inner wall of solid fixed ring, just vice brake block is close to the width of solid fixed ring one side, is less than the push pedal.

Further, the diameter of the oil hole is not more than 1mm.

Further, the auxiliary brake pad and the main brake pad are arranged in a staggered mode.

(III) beneficial effects

The embodiment of the utility model provides a brake assembly of a wind driven generator. The beneficial effects are as follows:

1. the brake fan shaft drives the main brake block to rotate, the rotating ring further rotates in the fixed ring, hydraulic oil in the oil cavity flows out through the oil hole of the piston plate, the speed of the hydraulic oil passing through the oil hole is gradually reduced along with the change of the hydraulic oil quantity, the reaction force borne by the piston plate is gradually increased, the resistance of the main brake block to the fan shaft is further gradually increased, the fan shaft can not stop instantaneously in the braking process, the abrasion of the brake shaft and the brake piece is reduced, and the service life of the brake piece is prolonged.

2. The auxiliary brake block carries out secondary braking to the fan shaft, and the auxiliary brake block and the main brake block form two braking marks, so that abrasion can be reduced, and braking capability can be improved.

Drawings

FIG. 1 is a schematic perspective view of the overall structure of the present utility model;

FIG. 2 is a schematic rear perspective view of the overall structure of the present utility model;

FIG. 3 is an enlarged schematic view of the structure A of FIG. 1 according to the present utility model.

In the figure: 1. a fixing ring; 11. a sealing plate; 12. a fixed rod; 13. an auxiliary brake pad; 14. a connecting spring; 2. a rotating ring; 21. a pushing block; 22. an arc-shaped rod; 23. a piston plate; 24. an oil hole; 25. a support spring; 26. a brake member; 261. a chute; 262. a sliding plate; 263. a main brake pad; 264. a cylinder; 27. a ring groove; 28. a push plate.

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. 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.

Referring to fig. 1-3, a brake assembly of a wind driven generator comprises a fixed ring 1, wherein a rotating ring 2 is rotationally connected with the fixed ring 1;

an even number of sealing plates 11 are arranged in the fixed ring 1, two sealing plates 11, the inner side of the fixed ring 1 and the outer wall of the rotating ring 2 form an oil cavity, and a proper amount of hydraulic oil is filled in the oil cavity;

the outer wall fixedly connected with a plurality of ejector blades 21 of swivel becket 2, ejector blade 21 is connected with piston plate 23 through arc pole 22, and this piston plate 23 and oil pocket sealed slip, a plurality of oilholes 24 have been seted up from the top down in the piston plate 23, ejector blade 21 is connected with one side of closing plate 11 through supporting spring 25, the inboard of swivel becket 2 is equipped with the brake piece, carry out the brake to the fan axle in the swivel becket 2 through the brake piece, the brake piece drives swivel becket 2 at this moment and rotates in solid fixed ring 1, further make ejector blade 21 promote piston plate 23 and slide in the oil pocket, the oil pocket flows through oilhole 24 this moment, and along with the reduction of oil mass, the rate of outflow can reduce, reverse resistance can increase this moment, improve braking ability, and the compression of supporting spring 25 in-process, but the brake resistance that its provides also increases gradually, but the relative slip in-process of this brake, and resistance increases effectively reduces wearing and tearing.

In this embodiment, the sliding groove 261 in the brake member is fixedly connected with the inner wall of the rotating ring 2, the sliding groove 261 is slidably connected with the sliding plate 262, one side of the sliding plate 262 far away from the rotating ring 2 is fixedly connected with the main brake block 263, the back of the main brake block 263 is connected with the output end of the cylinder 264, the cylinder 264 is started, at this time, the sliding plate 262 slides in the sliding groove 261, and the main brake block 263 is clamped to the outer wall of the fan shaft in the rotating ring 2 to brake.

In this embodiment, the front and rear sides of the rotary ring 2 are provided with annular grooves 27 which are engaged with the protrusions in the fixed ring 1, so as to improve the rotation stability between the rotary ring 2 and the fixed ring 1.

In this embodiment, the back of the rotating ring 2 is connected with a push plate 28, and the push plate 28 is slidably connected with the inner wall of the fixed ring 1, so as to improve the rotation stability between the rotating ring 2 and the fixed ring 1.

In this embodiment, the inner wall fixedly connected with dead lever 12 of solid fixed ring 1, dead lever 12 rotation is connected with vice brake block 13, and vice brake block 13 passes through connecting spring 14 and is connected with the inner wall of solid fixed ring 1, and the distance that vice brake block 13 is close to solid fixed ring 1 one side is less than the width of push pedal 28, and push pedal 28 follows the rotatory in-process of rotating ring 2 and promotes vice brake block 13 rotation, and then carries out the secondary braking to the fan axle, improves the braking ability.

In this embodiment, the diameter of the oil hole 24 is not greater than 1mm, so that the oil outlet speed is not too high, and the reverse braking resistance is not too small.

In this embodiment, the auxiliary brake pad 13 and the main brake pad 263 are arranged in a staggered manner, and two brake marks are formed between the two brake pads in a staggered manner, so that not only can wear be reduced, but also the braking capability can be increased.

Working principle: when the device is arranged outside a fan shaft for braking, the cylinder 264 is started, the main brake block 263 is clamped to the outer wall of the fan shaft, the fan shaft drives the main brake block 263 to rotate at the moment, the sliding plate 262 further drives the sliding groove 261 to rotate, the rotating ring 2 rotates in the fixed ring 1 at the moment, the push block 21 pushes the piston plate 23 to slide in the oil cavity through the arc-shaped rod 22, hydraulic oil in the oil cavity flows out through the oil hole 24 of the piston plate 23 at the moment, the speed of the hydraulic oil through the oil hole 24 is gradually reduced along with the reduction of the hydraulic oil, the reaction force born by the piston plate 23 in the oil cavity is gradually increased, the resistance group force born by the rotating ring 2 is further gradually increased, meanwhile, the supporting spring 25 is gradually compressed to gradually increase the resistance group force born by the rotating ring 2, the resistance of the main brake block 263 to the fan shaft is also gradually increased, the fan shaft drives the brake piece to rotate at first in the braking process, the resistance born by the fan shaft is gradually increased, the fan shaft is not stopped instantaneously, the abrasion of the brake shaft and the brake piece is reduced, and the service life of the brake piece is prolonged.

In the rotating process of the rotating ring 2, the push plate 28 pushes the auxiliary brake pad 13 to deflect, and at the moment, the auxiliary brake pad 13 secondarily brakes the fan shaft, and the auxiliary brake pad 13 and the main brake pad 263 form two brake marks, so that abrasion can be reduced, and braking capability can be improved.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. Wind-driven generator brake subassembly, including solid fixed ring (1), its characterized in that: the fixed ring (1) is rotationally connected with the rotating ring (2);

an even number of sealing plates (11) are arranged in the fixed ring (1), and oil cavities are formed by the two sealing plates (11) and the inner side of the fixed ring (1) and the outer wall of the rotating ring (2);

the outer wall fixedly connected with a plurality of ejector blades (21) of swivel becket (2), ejector blade (21) are connected with piston board (23) through arc pole (22), and this piston board (23) and oil pocket seal slip, a plurality of oilholes (24) have been seted up from the top down in piston board (23), ejector blade (21) are connected with one side of closing plate (11) through supporting spring (25), the inboard of swivel becket (2) is equipped with the brake spare.

2. A wind turbine brake assembly as defined in claim 1, wherein: the inner sliding groove (261) of the brake piece is fixedly connected with the inner wall of the rotating ring (2), a sliding plate (262) is connected in the sliding way of the sliding groove (261), a main brake block (263) is fixedly connected to one side, away from the rotating ring (2), of the sliding plate (262), and the back of the main brake block (263) is connected with the output end of the air cylinder (264).

3. A wind turbine brake assembly according to claim 1 or 2, wherein: the front side and the rear side of the rotating ring (2) are provided with annular grooves (27) which are matched with the inner protrusions of the fixed ring (1).

4. A wind turbine brake assembly according to claim 1 or 2, wherein: the back of the rotating ring (2) is connected with a push plate (28), and the push plate (28) is in sliding connection with the inner wall of the fixed ring (1).

5. A wind turbine brake assembly as defined in claim 4, wherein: the inner wall fixedly connected with dead lever (12) of solid fixed ring (1), dead lever (12) rotation is connected with vice brake block (13), vice brake block (13) are connected with the inner wall of solid fixed ring (1) through connecting spring (14), just the distance that vice brake block (13) are close to solid fixed ring (1) one side is less than the width of push pedal (28).

6. A wind turbine brake assembly as defined in claim 1, wherein: the diameter of the oil hole (24) is not more than 1mm.

7. A wind turbine brake assembly as defined in claim 5, wherein: the auxiliary brake block (13) and the main brake block (263) are arranged in a staggered way.