CN218971705U

CN218971705U - Electromagnetic brake assembly of wind driven generator

Info

Publication number: CN218971705U
Application number: CN202320007293.0U
Authority: CN
Inventors: 薛莲
Original assignee: Wuxi Xindafeng Technology Co ltd
Current assignee: Wuxi Xindafeng Technology Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-05-05
Anticipated expiration: 2033-01-04

Abstract

The utility model discloses an electromagnetic brake assembly of a wind driven generator, which comprises a generator set, wherein an output shaft is arranged at the front end of the generator set, a brake frame is fixedly sleeved on the output shaft, a limit chute is arranged at the front end of the brake frame, a brake block is slidably arranged at the front end of the limit chute, a fixed cover is sleeved outside the brake frame, a movable groove is arranged in the fixed cover, an electromagnetic block and a threaded rod are arranged in the movable groove, the electromagnetic block is positioned at a designated position at the front end of the brake block, the threaded rod penetrates through two sides of the electromagnetic block and one end of the threaded rod extends to the outside of the fixed cover, a large gear is arranged at the extending end of the threaded rod, and one side of the large gear is in transmission connection with a motor.

Description

Electromagnetic brake assembly of wind driven generator

Technical Field

The utility model relates to an electromagnetic brake assembly, in particular to an electromagnetic brake assembly of a wind driven generator, and belongs to the technical field of wind power generation brake protection.

Background

Because of the instability and unpredictability of wind power, a braking system capable of preventing the wind power generator from galloping under the condition of heavy wind must be included in the constituent parts of the wind power generator, and the main function of the braking system is to implement shutdown braking on the wind power generator when the wind speed is excessive, the external environment changes or the wind power generator fails;

the prior art has the following publication numbers: the electromagnetic braking device for the wind driven generator provided by the utility model patent of CN 210714928U has the characteristics of simple structure, low cost, short braking time and good braking effect by being provided with the column type brake disc, the cylinder type electromagnetic block and the controller, and can still perform certain braking on the output shaft of the gearbox of the wind driven generator under the condition of unexpected power failure or unexpected fault of the controller of the braking device, so that multiple braking protection is provided for the wind driven generator, but the electromagnetic braking device does not have the position adjusting capability of the electromagnetic block, and when the electromagnetic block and the brake block are rubbed, the electromagnetic braking device is worn, the distance between the electromagnetic block and the brake block is increased, the magnetic attraction force is reduced, the friction force is reduced, the whole braking effect is poor, meanwhile, the electromagnetic braking device does not have the capability of rapidly dismounting a braking component, and is inconvenient for overhauling and maintaining equipment in the later stage, so that the electromagnetic braking device is required to be updated and reformed on the basis of the prior art.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an electromagnetic brake assembly of a wind driven generator, which can realize the position adjustment of an electromagnetic block, avoid the problems of insufficient adsorption force and friction force and the like caused by abrasion of a brake pad or the electromagnetic block, realize the rapid disassembly and assembly operation of a fixed cover and avoid the problem that the integrated design of the fixed cover and a generator set is inconvenient to disassemble and overhaul.

In order to solve the problems, the following technical scheme is provided:

the utility model provides an electromagnetic brake subassembly of aerogenerator, includes generating set, the generating set front end is equipped with output shaft and fixed cover on the output shaft is equipped with the brake frame, spacing spout and spacing spout front end slip are provided with the brake block in the brake frame front end, the cover is equipped with fixed cover and fixed cover in the brake frame outside, be provided with electromagnetism piece and threaded rod in the movable groove, the electromagnetism piece is located brake block front end assigned position, threaded rod runs through the spiro union in electromagnetism piece both sides and one end and extends to fixed cover outside, threaded rod extension end is equipped with gear wheel and gear wheel one side transmission and is connected with the motor, fixed cover rear end is provided with the mounting panel.

Further, the rear end of the brake pad is provided with a limit ring, and the limit ring is positioned in the limit chute and has a diameter larger than the front end opening of the limit chute.

Further, the front end of the limit ring is provided with a spring, and the spring is positioned in the limit chute and connected with the inner wall of the limit chute.

Further, the motor is arranged outside the fixed cover, and a pinion is arranged at the front end of the motor and meshed with the large gear.

Furthermore, a positioning hole is formed in the mounting plate, and a positioning block is arranged on the generator set and corresponds to the positioning hole.

Furthermore, four groups of mounting holes are formed in the mounting plate and the generator set, and bolts are fixed in the mounting holes.

Further, the brake pad is arranged on the output shaft in a sliding sleeve mode.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the motor, the threaded rod and the large gear are arranged in the device, when in use, the motor drives the small gear to rotate, the small gear drives the large gear to synchronously rotate with the threaded rod, and the electromagnetic block screwed on the threaded rod moves back and forth at the inner side of the fixed cover, so that the position of the electromagnetic block can be adjusted, the electromagnetic block can be conveniently and fully contacted and rubbed with the brake block when being electrified, and the problems of insufficient adsorption force and friction force and the like caused by abrasion of the brake block or the electromagnetic block are avoided.

2. According to the utility model, the mounting plate, the positioning holes and the mounting holes are arranged in the device, when the device is used, the fixing cover and the mounting plate are butted at the front end of the generator set through the cooperation of the positioning holes and the positioning blocks, the bolts are screwed and fixed in the two corresponding groups of mounting holes, the quick dismounting operation of the fixing cover can be realized, the later maintenance and replacement of the brake block or the electromagnetic block are facilitated, and the problem that the integrated design of the device and the generator set is inconvenient to detach and overhaul is avoided.

Specific embodiments of the utility model are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not limited in scope thereby. The embodiments of the utility model include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of an electromagnetic brake assembly of a wind turbine according to the present utility model;

FIG. 2 is an exploded view of the overall structure of an electromagnetic brake assembly of a wind turbine according to the present utility model;

FIG. 3 is a front end sectional view of an electromagnetic brake assembly of a wind turbine according to the present utility model;

FIG. 4 is a cross-sectional view of a brake frame structure of an electromagnetic brake assembly of a wind turbine according to the present utility model;

fig. 5 is a sectional view showing a structure of a stationary cover of an electromagnetic brake assembly of a wind power generator according to the present utility model.

In the figure: 1. a generator set; 2. an output shaft; 3. a brake frame; 4. limiting sliding grooves; 5. a brake pad; 6. a limit ring; 7. a spring; 8. a fixed cover; 9. a movable groove; 10. an electromagnetic block; 11. a threaded rod; 12. a large gear; 13. a pinion gear; 14. a motor; 15. a mounting plate; 16. positioning holes; 17. a mounting hole; 18. a positioning block; 19. and (5) a bolt.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-5, the electromagnetic brake assembly of the wind driven generator comprises a generator set 1, an output shaft 2 is arranged at the front end of the generator set 1, a brake frame 3 is fixedly sleeved on the output shaft 2, a limit sliding chute 4 is arranged at the front end of the brake frame 3, a brake block 5 is slidably arranged at the front end of the limit sliding chute 4, a fixed cover 8 is sleeved outside the brake frame 3, a movable groove 9 is arranged in the fixed cover 8, an electromagnetic block 10 and a threaded rod 11 are arranged in the movable groove 9, the electromagnetic block 10 is positioned at a designated position at the front end of the brake block 5, the threaded rod 11 penetrates through two sides of the electromagnetic block 10 and one end of the electromagnetic block extends to the outside of the fixed cover 8, a large gear 12 is arranged at the extending end of the threaded rod 11, a motor 14 is connected to one side of the large gear 12 in a transmission manner, and a mounting plate 15 is arranged at the rear end of the fixed cover 8.

Preferably, the rear end of the brake pad 5 is provided with a limit ring 6, the limit ring 6 is positioned in the limit chute 4 and has a diameter larger than the front end opening of the limit chute 4, so that the brake pad 5 can be conveniently and slidably limited, and brake failure caused by falling off of the brake pad from the limit chute 4 is avoided.

Preferably, the front end of the limit ring 6 is provided with a spring 7, and the spring 7 is positioned in the limit chute 4 and connected with the inner wall of the limit chute 4, so that the limit ring 6 and the limit chute 4 are elastically connected, and the brake pad 5 can be elastically reset during non-working.

Preferably, the motor 14 is arranged outside the fixed cover 8, the front end of the motor is provided with a pinion 13, and the pinion 13 is meshed with the large gear 12, so that the motor 14 can drive the threaded rod 11 to rotate, and the threaded rod 11 can rotate and adjust the position of the electromagnetic block 10.

Preferably, the mounting plate 15 is provided with a positioning hole 16, the generator set 1 is provided with a positioning block 18, and the positioning block 18 corresponds to the positioning hole 16, so that the mounting plate 15 is conveniently positioned, and the mounting plate 15 can be correspondingly attached to the generator set 1 during mounting.

Preferably, four groups of mounting holes 17 are formed in the mounting plate 15 and the generator set 1, bolts 19 are fixed in the mounting holes 17, so that the mounting plate 15 and the generator set 1 are conveniently fixed, and the fixing cover 8 is fixed at the front end of the generator set 1 and is kept stable.

Preferably, the brake pad 5 is slidably sleeved on the output shaft 2, so that the brake pad 5 can be magnetically attracted when the electromagnetic block 10 is electrified, and the brake pad 5 can slide back and forth.

The application principle and the application flow of the utility model are as follows: when the electromagnetic brake device is used, firstly, the brake frame 3 is mounted on the output shaft 2, then, the fixed cover 8 is sleeved on the outer side of the output shaft 2 and the brake frame 3, the mounting plate 15 is correspondingly arranged on one side of the generator set 1, the positioning holes 16 are correspondingly arranged on the positioning blocks 18, the two groups of mounting holes 17 are correspondingly arranged on the outer side of the fixed cover, and are connected with bolts 19 in an inserted mode, when the generator set 1 works, the output shaft 2 rotates and drives the brake frame 3 and the brake pads 5 to synchronously move, at the moment, the electromagnetic blocks 10 can be controlled by an external power supply to be electrified, the electromagnetic blocks 10 generate magnetic force and absorb the brake pads 5, the brake pads 5 overcome the elastic force of the springs 7 and slide towards the outer side of the limiting sliding grooves 4, friction is generated when the electromagnetic blocks 10 are contacted with the electromagnetic blocks 10, the output shaft 2 is decelerated and braked, when the electromagnetic blocks 10 lose magnetic force, the brake pads 5 reset under the action of the springs 7 and shrink to the opening of the limiting sliding grooves 4, the motor 14 is controlled by the external power supply to work, the motor 14 drives the pinion 13 and the large gear 12 to rotate synchronously, the threaded rod 11 is screwed on the threaded rod 11 to move synchronously, and the electromagnetic blocks 10 can be adjusted, and the position of the electromagnetic blocks 10 can be adjusted, and the friction effect of the friction blocks 10 or the brake pads 5 can be prevented from being lowered.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to specific circumstances.

While the utility model has been described in connection with specific embodiments, it will be apparent to those skilled in the art that the description is intended to be illustrative and not limiting in scope. Various modifications and alterations of this utility model will occur to those skilled in the art in light of the spirit and principles of this utility model, and such modifications and alterations are also within the scope of this utility model.

Claims

1. The utility model provides an electromagnetic brake subassembly of aerogenerator, its characterized in that, including generating set (1), generating set (1) front end is equipped with output shaft (2) and fixed cover is equipped with brake frame (3) on output shaft (2), limit chute (4) and limit chute (4) front end are seted up to brake frame (3) front end and are provided with brake block (5) in the slip, brake frame (3) outside cover is equipped with fixed cover (8) and has offered movable groove (9) in fixed cover (8), be provided with electromagnetic block (10) and threaded rod (11) in movable groove (9), electromagnetic block (10) are located brake block (5) front end assigned position, threaded rod (11) run through the spiro union in electromagnetic block (10) both sides and one end extends to fixed cover (8) outside, threaded rod (11) extension end is equipped with gear wheel (12) and gear wheel (12) one side transmission and is connected with motor (14), fixed cover (8) rear end is provided with mounting panel (15).

2. The electromagnetic brake assembly of the wind driven generator according to claim 1, wherein a limit ring (6) is arranged at the rear end of the brake pad (5), and the limit ring (6) is positioned in the limit chute (4) and has a diameter larger than the front end opening of the limit chute (4).

3. The electromagnetic brake assembly of the wind driven generator according to claim 2, wherein a spring (7) is arranged at the front end of the limit ring (6), and the spring (7) is positioned in the limit chute (4) and is connected with the inner wall of the limit chute (4).

4. An electromagnetic brake assembly for a wind power generator according to claim 1, wherein the motor (14) is arranged outside the fixed cover (8) and provided with a pinion (13) at the front end, the pinion (13) being in engagement with the gearwheel (12).

5. The electromagnetic brake assembly of the wind driven generator according to claim 1, wherein the mounting plate (15) is provided with a positioning hole (16), the generator set (1) is provided with a positioning block (18), and the positioning block (18) corresponds to the positioning hole (16).

6. The electromagnetic brake assembly of the wind driven generator according to claim 1, wherein four groups of mounting holes (17) are formed in the mounting plate (15) and the generator set (1), and bolts (19) are fixed in the mounting holes (17).

7. An electromagnetic brake assembly for a wind power generator according to claim 1, wherein the brake pad (5) is slidably mounted on the output shaft (2).