CN211288526U

CN211288526U - Speed limiting and braking device of wind driven generator

Info

Publication number: CN211288526U
Application number: CN201922287786.0U
Authority: CN
Inventors: 余海
Original assignee: Jiangxi Baiyi Construction Engineering Co ltd
Current assignee: Jiangxi Baiyi Construction Engineering Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-08-18
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a aerogenerator's speed limit, brake equipment relates to wind power generation technical field, specifically is an aerogenerator's speed limit, brake equipment, which comprises a housin, the inside fixed mounting of casing has the generator, the pivot has been cup jointed in the inside activity of generator, the fixed acceleration rate case that has cup jointed in left side of pivot. This aerogenerator's speed limit, brake equipment, drive the brake belt upward movement through driving motor, make the brake disc inwards contract and brake with the brake block contact, utilize the brake block contact with the brake block earlier, slow down the brake block, then the brake disc continues inwards to contract, make wear pad and brake block contact and brake, adopt the mode of slowing down earlier and stopping to brake again, the rotational speed that can make the pivot has a gradual change process, prevent that the paddle piece from damaging because torsion is too big, reduce the loss of wear pad simultaneously, the life of wear pad has been improved.

Description

Speed limiting and braking device of wind driven generator

Technical Field

The utility model relates to a wind power generation technical field specifically is a aerogenerator's speed limit, brake equipment.

Background

The wind power generator is an electric power device which converts wind energy into mechanical work, the mechanical work drives a rotor to rotate, and finally outputs alternating current.

The wind driven generator is in the pivoted in-process, the rotational speed of oar blade can increase along with the increase of wind-force, when wind-force is too big, the paddle piece rotational speed is too fast, lead to the generator to transship, consequently, need carry out the speed limit to the generator, brake, current brake equipment all directly stops, when the rotational speed is too fast, directly stopping can lead to paddle blade torsion too big, cause the paddle piece impaired easily, simultaneously at the in-process of braking, can generate heat between brake block and the brake band, cause the inside temperature rise of generator easily, we provide a wind driven generator's speed limit for this, brake equipment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a aerogenerator's speed limit, brake equipment has solved the problem of proposing in the above-mentioned background art.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a aerogenerator's speed limit, brake equipment, includes the casing, the inside fixed mounting of casing has the generator, the pivot has been cup jointed in the inside activity of generator, the fixed cover in left side of pivot has connect the acceleration rate case, the external fixed surface of pivot has cup jointed the brake block that is located the acceleration rate case left, the middle part of brake block is outside protruding, the outside of brake block is provided with the brake disc, the top fixedly connected with fixing base of brake disc, the top of fixing base and the top fixed connection of casing inner chamber, the left end fixedly connected with wheel hub of pivot, wheel hub's external fixed surface installs the oar blade.

Optionally, the inside fixedly connected with brake area of brake disc, the bottom fixedly connected with wear pad in brake area, the top fixedly connected with conducting strip in brake area, the top of conducting strip is provided with the basin, the inside of conducting strip is provided with temperature sensor, the brake disc is convex and encircles the outside at the brake pad.

Optionally, the inside of brake disc is provided with the brake block, the bottom of brake block is provided with wear pad, the top fixedly connected with bracing piece of brake block, the top and the brake disc activity of bracing piece cup joint, the top fixedly connected with buffer spring of bracing piece, the right-hand member fixedly connected with brake belt of brake disc.

Optionally, a driving motor is fixedly mounted inside the fixing seat, a belt pulley is fixedly mounted on an output shaft of the driving motor, and the brake belt is engaged with the belt pulley of the driving motor.

Optionally, the left side fixedly connected with water-cooled tube of brake disc, the water-cooled tube is two-way communicating pipe, the water-cooled tube communicates with the inside basin of brake disc, the bottom fixed mounting of water-cooled tube has the water pump, the left side fixedly connected with water tank of water pump, the top of water pump is provided with the controller.

Optionally, the controller is electrically connected to the temperature sensor and the water pump.

The utility model provides a aerogenerator's speed limit, brake equipment possesses following beneficial effect:

1. this aerogenerator's speed limit, brake equipment, drive the brake belt upward movement through driving motor, make the brake disc inwards contract and brake with the brake block contact, utilize the brake block contact with the brake block earlier, slow down the brake block, then the brake disc continues inwards to contract, make wear pad and brake block contact and brake, adopt the mode of slowing down earlier and stopping to brake again, the rotational speed that can make the pivot has a gradual change process, prevent that the paddle piece from damaging because torsion is too big, reduce the loss of wear pad simultaneously, the life of wear pad has been improved.

2. According to the speed-limiting and braking device of the wind driven generator, the water tank is arranged in the brake disc, the temperature sensor is used for detecting the temperature of the brake band, signals are transmitted to the controller, when the temperature of the brake band is too high, the controller controls the water pump to convey cooling water into the water cooling pipe, the cooling water is conveyed into the water tank through the water cooling pipe, the brake band is cooled, the too high temperature of the brake band is prevented, and the safety of the wind driven generator is protected.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view schematic structural diagram of the brake pad of the present invention;

fig. 3 is a schematic structural view of the brake disc of the present invention.

In the figure: 1. a housing; 2. a generator; 3. a rotating shaft; 4. a speed increasing box; 5. a brake pad; 6. a brake disc; 61. a brake band; 62. a wear resistant sheet; 63. a heat conductive sheet; 64. a water tank; 65. a temperature sensor; 66. A brake plate; 67. a support bar; 68. a buffer spring; 69. a brake belt; 7. a fixed seat; 8. a drive motor; 9. a water-cooled tube; 10. a water pump; 11. a water tank; 12. a controller; 13. a hub; 14. a paddle blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 3, the present invention provides a technical solution: a speed-limiting and braking device of a wind driven generator comprises a shell 1, a generator 2 is fixedly installed inside the shell 1, a rotating shaft 3 is movably sleeved inside the generator 2, a speed increasing box 4 is fixedly sleeved on the left side of the rotating shaft 3, a brake block 5 positioned on the left side of the speed increasing box 4 is fixedly sleeved on the outer surface of the rotating shaft 3, the middle part of the brake block 5 protrudes outwards, the middle part of the brake block 5 is designed to be convex, so that the middle part of the brake block 5 can be in contact with a brake disc 6 firstly, the brake block 5 is conveniently decelerated firstly, the speed of the brake block 5 is reduced, the torsion force borne by a paddle blade 14 is reduced, the safety of the paddle blade 14 is protected, a brake disc 6 is arranged outside the brake block 5, a brake band 61 is fixedly connected inside the brake disc 6, a wear-resistant piece 62 is fixedly connected to the bottom of the brake band 61, and a wear-resistant piece 62 is arranged at the, the wear resistance of the brake band 61 can be improved, the brake band 61 can be used for a longer time, the service life of the brake band 61 is prolonged, the replacement frequency of the brake band 61 is reduced, the use of the brake disc 6 is facilitated, the heat conducting sheet 63 is fixedly connected to the top of the brake band 61, the water groove 64 is arranged on the top of the heat conducting sheet 63, the temperature sensor 65 is arranged inside the heat conducting sheet 63, the brake disc 6 surrounds the outside of the brake disc 5 in a circular arc shape, the brake plate 66 is arranged inside the brake disc 6, the wear-resistant sheet 62 is arranged at the bottom of the brake plate 66, the brake disc 5 is decelerated by the brake plate 66 contacting with the brake disc 5 first, then the brake disc 6 continuously contracts inwards, the wear-resistant sheet 62 is contacted with the brake disc 5 to brake, the brake is carried out by adopting the mode of decelerating first and then stopping, the rotating speed of the rotating shaft 3 can be gradually changed, prevent the paddle blades 14 from being damaged due to overlarge torsion, simultaneously reduce the loss of the wear-resistant sheet 62 and prolong the service life of the wear-resistant sheet 62, the top of the brake plate 66 is fixedly connected with a support rod 67, the top of the support rod 67 is movably sleeved with the brake disc 6, the top of the support rod 67 is fixedly connected with a buffer spring 68, the right end of the brake disc 6 is fixedly connected with a brake belt 69, the top of the brake disc 6 is fixedly connected with a fixed seat 7, the inside of the fixed seat 7 is fixedly provided with a driving motor 8, the output shaft of the driving motor 8 is fixedly provided with a belt disc, the brake belt 69 is meshed with the belt disc of the driving motor 8, the driving motor 8 is arranged to drive the brake belt 69 to move upwards, so that the brake disc 6 contracts inwards and is contacted with the brake sheet 5, the brake sheet 5 is conveniently braked, and the damage of the generator 2 caused by, the safety of the generator is protected, the service life of the generator is prolonged, the top of the fixed seat 7 is fixedly connected with the top of the inner cavity of the shell 1, the left side of the brake disc 6 is fixedly connected with a water-cooling pipe 9, the water-cooling pipe 9 is a two-way communication pipe, the water-cooling pipe 9 is communicated with a water tank 64 in the brake disc 6, the bottom end of the water-cooling pipe 9 is fixedly provided with a water pump 10, the left side of the water pump 10 is fixedly connected with a water tank 11, the temperature of the brake band 61 is detected by a temperature sensor 65 through the arrangement of the water tank 11, signals are transmitted to a controller 12, when the temperature of the brake band 61 is overhigh, the controller 12 controls the water pump 10 to convey cooling liquid in the water tank 11 to the water-cooling pipe 9, then conveys the cooling water into the water tank 64 through the water-cooling pipe 9, the brake band 61 is cooled, the temperature of the brake band, the controller 12 is electrically connected with the temperature sensor 65 and the water pump 10, the left end of the rotating shaft 3 is fixedly connected with a hub 13, and the outer surface of the hub 13 is fixedly provided with a paddle blade 14.

To sum up, when the speed limiting and braking device of the wind driven generator is used, the driving motor 8 drives the brake belt 69 to move upwards, the brake disc 6 is tightened inwards, the brake plate 66 is firstly contacted with the brake block 5 to decelerate the brake block 5, then the brake disc 6 continues to contract inwards, the wear-resistant sheet 62 is contacted with the brake block 5 to brake, the temperature of the brake belt 61 is detected through the temperature sensor 65, a signal is transmitted to the controller 12, when the temperature of the brake belt 61 is too high, the controller 12 controls the water pump 10 to convey cooling water into the water cooling pipe 9, then the cooling water is conveyed into the water tank 64 through the water cooling pipe 9, and the brake belt 61 is cooled.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a aerogenerator's speed limit, brake equipment, includes casing (1), its characterized in that: the inside fixed mounting of casing (1) has generator (2), pivot (3) have been cup jointed in the inside activity of generator (2), acceleration rate case (4) have been cup jointed to the left side of pivot (3) is fixed, the external fixed surface of pivot (3) has been cup jointed and has been located left brake block (5) of acceleration rate case (4), the middle part of brake block (5) is outside protruding, the outside of brake block (5) is provided with brake disc (6), the top fixedly connected with fixing base (7) of brake disc (6), the top of fixing base (7) and the top fixed connection of casing (1) inner chamber, the left end fixedly connected with wheel hub (13) of pivot (3), the external fixed surface of wheel hub (13) installs oar blade (14).

2. The speed limiting and braking device of the wind driven generator as claimed in claim 1, wherein: the brake disc is characterized in that a brake band (61) is fixedly connected to the inside of the brake disc (6), a wear-resistant sheet (62) is fixedly connected to the bottom of the brake band (61), a heat-conducting sheet (63) is fixedly connected to the top of the brake band (61), a water groove (64) is formed in the top of the heat-conducting sheet (63), a temperature sensor (65) is arranged inside the heat-conducting sheet (63), and the brake disc (6) is in a circular arc shape and surrounds the outside of the brake sheet (5).

3. The speed limiting and braking device of the wind driven generator as claimed in claim 1, wherein: the inside of brake disc (6) is provided with brake block (66), the bottom of brake block (66) is provided with wear pad (62), top fixedly connected with bracing piece (67) of brake block (66), the top and the brake disc (6) activity of bracing piece (67) are cup jointed, the top fixedly connected with buffer spring (68) of bracing piece (67), the right-hand member fixedly connected with brake belt (69) of brake disc (6).

4. The speed limiting and braking device of the wind driven generator as claimed in claim 3, wherein: the inside fixed mounting of fixing base (7) has driving motor (8), fixed mounting has the belt pulley on the output shaft of driving motor (8), brake belt (69) meshing is on the belt pulley of driving motor (8).

5. The speed limiting and braking device of the wind driven generator as claimed in claim 2, wherein: the left side fixedly connected with water-cooled tube (9) of brake disc (6), water-cooled tube (9) are two-way communicating pipe, water-cooled tube (9) and inside basin (64) intercommunication of brake disc (6), the bottom fixed mounting of water-cooled tube (9) has water pump (10), the left side fixedly connected with water tank (11) of water pump (10), the top of water pump (10) is provided with controller (12).

6. The speed limiting and braking device of the wind driven generator as claimed in claim 5, wherein: the controller (12) is electrically connected with the temperature sensor (65) and the water pump (10).