CN220505236U

CN220505236U - Braking device for wind power generation

Info

Publication number: CN220505236U
Application number: CN202322044275.2U
Authority: CN
Inventors: 张蒙; 张茜
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-01
Filing date: 2023-08-01
Publication date: 2024-02-20
Anticipated expiration: 2033-08-01

Abstract

The utility model discloses a braking device for wind power generation, which comprises a shell, an input shaft of a fan blade and a connecting shaft of a generator, wherein a braking mechanism is arranged between the input shaft and the connecting shaft, an auxiliary braking component positioned on the right side of the braking mechanism is arranged on the surface of the input shaft, the braking mechanism comprises a T-shaped disc, connectors are fixedly connected to one ends of the input shaft opposite to the connecting shaft, limit grooves matched with protruding blocks are formed in the inner surface of the T-shaped disc in an equidistant manner, and the two connectors are positioned in the T-shaped disc through the matching of the protruding blocks and the limit grooves. When the input shaft of the fan blade is braked, the T-shaped disc moves, and the T-shaped disc is separated from the transmission of the connecting shaft of the generator when moving, so that the problem that the connecting shaft of the generator receives opposite force during braking is effectively avoided, and the problem that the connecting shaft of the generator is twisted off is avoided.

Description

Braking device for wind power generation

Technical Field

The utility model relates to the technical field of braking for wind power generation, in particular to a braking device for wind power generation.

Background

Wind power generation means that kinetic energy of wind is converted into electric energy, wind energy is clean and pollution-free renewable energy, wind power generation is utilized, wind energy is extremely environment-friendly, wind energy accumulation is huge, faults such as generator stall and the like can be caused when wind power is overlarge, a generator is easy to damage, a braking device is needed to control the rotating speed of the generator, chinese patent publication No. CN211202200U discloses a braking device for a wind driven generator, the existing braking device with a retarding function on a rotating shaft can be realized through sliding friction force between a friction plate and a friction ring, when the braking device is used, the speed of a connecting shaft of the generator is retarded through extrusion of the friction plate, but under the condition that the speed of a fan blade is reduced, the connecting shaft of the generator is subjected to radial force of transmission force transmitted by rotation of the fan blade and friction force driven by braking, and obviously, the connecting shaft of the generator is subjected to opposite forces for a long time, and torsion-out can occur.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a braking device for wind power generation, which solves the problem that the connecting shaft of a generator is twisted off when the existing braking device for wind power generation brakes.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a arresting gear for wind power generation includes the connecting axle of input shaft and generator of shell, flabellum, be provided with brake mechanism between input shaft and the connecting axle, the surface of input shaft is provided with the auxiliary brake subassembly that is located brake mechanism right side, brake mechanism includes T type disc, the equal fixedly connected with connector of the one end that input shaft is relative with the connecting axle, the surface equidistance of connector is provided with a plurality of lugs, the internal surface equidistance of T type disc leaves and is equipped with the spacing recess with lug matched with, two the connector is in the inside of T type disc through the cooperation of lug and spacing recess.

Preferably, the top sliding connection of shell inner wall has C type locating part, first ring groove has all been seted up on the left side and the right side of T type disc, the both ends centre gripping of C type locating part is in two first ring groove positions.

The utility model discloses a T-shaped disc, including shell inner wall, fixed lever, the surface rotation of fixed lever is connected with H type pole, the right side fixedly connected with drive pneumatic cylinder of shell below bulge position, the output of drive pneumatic cylinder runs through the shell and extends to the inside of shell, the output of drive pneumatic cylinder rotates with the one end of H type pole below and is connected, the second ring groove has been seted up on the left side on T-shaped disc surface, the one end centre gripping of H type pole top is in the second ring groove.

The auxiliary brake assembly comprises a circular groove and a brake disc, wherein the circular groove and the brake disc are arranged on the right side of the T-shaped disc, the brake disc is fixedly connected with the surface of the input shaft, a plurality of stop blocks are fixedly connected to the left side of the inner wall of the circular groove at equal intervals, and a friction plate is fixedly connected to the middle part of the left side of the inner wall of the circular groove through bolts.

The left side fixedly connected with upper and lower two fixed blocks of brake disc, two the fixed block is relative one side fixedly connected with intermediate lever, the surface rotation of intermediate lever is connected with the separation blade.

The part that the separation blade is connected with the intermediate lever has seted up logical groove, the intermediate lever is in logical surface cover in the groove and is equipped with the torsional spring, the one end and the fixed surface of intermediate lever of torsional spring are connected, the other end and the positive fixed connection of separation blade of torsional spring.

Advantageous effects

The utility model provides a braking device for wind power generation. Compared with the prior art, the device has the following

The beneficial effects are that:

1. this arresting gear for wind power generation includes T type disc through brake mechanism, and the equal fixedly connected with connector of one end that input shaft and connecting axle are relative, and the surface equidistance of connector is provided with a plurality of lugs, when braking the input shaft of flabellum for T type disc removes, breaks away from the transmission with the generator connecting axle when T type disc removes, thereby effectually avoided the generator connecting axle receive the problem of opposite force when braking, avoided the connecting axle of generator to take place the problem of torsion-breaking.

2. This arresting gear for wind power generation is including seting up circular slot and the brake disc on T type disc right side through auxiliary brake subassembly, and the fixed surface of brake disc and input shaft is connected, and a plurality of dogs of left side equidistance fixedly connected with of circular slot inner wall when friction disc and brake disc contact, through the contact of separation blade and dog to further provide resistance, can reduce the rotational speed of flabellum input shaft fast.

Drawings

FIG. 1 is a cross-sectional view of a brake mechanism of the present utility model;

FIG. 2 is a cross-sectional view of the brake mechanism of the present utility model;

FIG. 3 is a side view of a T-shaped disk of the present utility model;

FIG. 4 is a side view of the brake disc of the present utility model;

FIG. 5 is a schematic illustration of the auxiliary brake set of the present utility model.

In the figure: 1. a housing; 2. an input shaft; 3. a connecting shaft; 4. a braking mechanism; 41. a T-shaped disc; 42. a connector; 43. a bump; 44. a limit groove; 45. a first annular groove; 46. c-shaped limiting pieces; 47. a second annular groove; 48. a fixed rod; 49. an H-shaped rod; 410. driving a hydraulic cylinder; 5. an auxiliary brake assembly; 51. a circular groove; 52. a friction plate; 53. a stop block; 54. a brake disc; 55. a fixed block; 56. an intermediate lever; 57. a baffle; 58. a through groove; 59. and (3) a torsion spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

The braking device for wind power generation provides two technical schemes:

a first embodiment is shown in fig. 1-3: the electric generator comprises a shell 1, an input shaft 2 of fan blades and a connecting shaft 3 of the electric generator, a braking mechanism 4 is arranged between the input shaft 2 and the connecting shaft 3, an auxiliary braking component 5 positioned on the right side of the braking mechanism 4 is arranged on the surface of the input shaft 2, the braking mechanism 4 comprises a T-shaped disc 41, connecting rods 48 are fixedly connected between the front side and the back side of the inner wall of the shell 1, a plurality of protruding blocks 43 are arranged on the surface of the connecting rods 42 at equal intervals, limit grooves 44 matched with the protruding blocks 43 are arranged on the inner surface of the T-shaped disc 41 at equal intervals, the two connecting rods 42 are arranged in the T-shaped disc 41 through the matching of the protruding blocks 43 and the limit grooves 44, a C-shaped limiting piece 46 is slidably connected to the top of the inner wall of the shell 1, a first circular groove 45 is formed in the left side and the right side of the T-shaped disc 41, two ends of the C-shaped limiting piece 46 are clamped at the positions of the two first circular grooves 45, a fixing rod 48 is fixedly connected between the front side and the back side of the inner wall of the shell 1, an H-shaped rod 49 is rotatably connected to the surface of the fixing rod 48, a driving cylinder 410 is fixedly connected to the right side of the lower side of the outer wall of the shell 1, the output cylinder 410 extends to the first circular groove 410 extends to the left side of the right side of the driving cylinder 47, and the left side of the driving cylinder 410 extends to the left side of the cylinder 47, and the right side of the driving cylinder 47 is connected to the left side of the cylinder 47, and the right side of the cylinder is connected to the cylinder 4.

When the input shaft 2 of the fan blade is braked, the T-shaped disc 41 moves, and the transmission with the connecting shaft 3 of the generator is separated when the T-shaped disc 41 moves, so that the problem that the connecting shaft 3 of the generator receives opposite force during braking is effectively avoided, and the problem that the connecting shaft 3 of the generator is twisted off is avoided.

The second embodiment, shown in figures 2-5, differs from the first embodiment primarily in that: the auxiliary brake assembly 5 comprises a circular groove 51 and a brake disc 54 which are arranged on the right side of the T-shaped disc 41, the brake disc 54 is fixedly connected with the surface of the input shaft 2, a plurality of stop blocks 53 are fixedly connected to the left side of the inner wall of the circular groove 51 at equal intervals, a friction plate 52 is fixedly connected to the middle part of the left side of the inner wall of the circular groove 51 through bolts, an upper fixing block 55 and a lower fixing block 55 are fixedly connected to the left side of the brake disc 54, a middle rod 56 is fixedly connected to one side of the two fixing blocks 55 opposite to each other, a baffle 57 is rotatably connected to the surface of the middle rod 56, a through groove 58 is formed in the connecting part of the baffle 57 and the middle rod 56, a torsion spring 59 is sleeved on the surface of the middle rod 56, one end of the torsion spring 59 is fixedly connected with the surface of the middle rod 56, and the other end of the torsion spring 59 is fixedly connected with the front surface of the baffle 57.

The friction plate 52 contacts with the brake disc 54, and the stopper 57 contacts with the stopper 53, thereby providing further resistance, and the rotation speed of the fan blade input shaft 2 can be rapidly reduced.

When braking is required, the hydraulic cylinder 410 is driven, the output end of the hydraulic cylinder 410 is driven to extend, the H-shaped rod 49 is pushed to rotate, the H-shaped rod 49 is rotated, the T-shaped disc 41 is pushed to move rightwards, the T-shaped disc 41 is firstly disengaged from the connector 42 on the connecting shaft 3, the T-shaped disc 41 continues to move and is further disengaged from the connector 42 on the input shaft 2, at the moment, the right side of the T-shaped disc 41 is contacted with the brake disc 54, the rotation of the input shaft 2 is reduced through friction between the friction plate 52 and the brake disc 54, meanwhile, the baffle 57 enters the circular groove 51 and is contacted with the stop 53, the baffle 57 is contacted with the stop 53 and rotates, the baffle 57 rotates to overcome the torsion of the torsion spring 59, and the reduction of the rotation speed of the input shaft 2 is further accelerated.

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.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a arresting gear for wind power generation, includes connecting axle (3) of input shaft (2) and generator of shell (1), flabellum, its characterized in that: be provided with brake mechanism (4) between input shaft (2) and connecting axle (3), the surface of input shaft (2) is provided with auxiliary brake subassembly (5) that are located brake mechanism (4) right side, brake mechanism (4) are including T type disc (41), the equal fixedly connected with connector (42) of one end that input shaft (2) are relative with connecting axle (3), the surface equidistance of connector (42) is provided with a plurality of lugs (43), the internal surface equidistance of T type disc (41) leave be equipped with lug (43) matched with spacing recess (44), two the cooperation of connector (42) all through lug (43) and spacing recess (44) is in the inside of T type disc (41).

2. A brake device for wind power generation according to claim 1, wherein: the top sliding connection of shell (1) inner wall has C type locating part (46), first annular groove (45) have all been seted up on the left side and the right side of T type disc (41), the both ends centre gripping of C type locating part (46) are in two first annular groove (45) positions.

3. A brake device for wind power generation according to claim 1, wherein: fixedly connected with dead lever (48) between the front of shell (1) inner wall and the back, the surface rotation of dead lever (48) is connected with H type pole (49), the right side fixedly connected with drive pneumatic cylinder (410) of shell (1) below bulge, the output of drive pneumatic cylinder (410) runs through shell (1) and extends to the inside of shell (1), the output of drive pneumatic cylinder (410) rotates with the one end below H type pole (49) and is connected, second annular (47) have been seted up on the left side on T type disc (41) surface, the one end centre gripping of H type pole (49) top is in second annular (47).

4. A brake device for wind power generation according to claim 1, wherein: the auxiliary brake assembly (5) comprises a circular groove (51) and a brake disc (54) which are arranged on the right side of the T-shaped disc (41), the brake disc (54) is fixedly connected with the surface of the input shaft (2), a plurality of stop blocks (53) are fixedly connected to the left side of the inner wall of the circular groove (51) at equal intervals, and a friction plate (52) is fixedly connected to the middle part of the left side of the inner wall of the circular groove (51) through bolts.

5. The braking device for wind power generation according to claim 4, wherein: the left side fixedly connected with upper and lower two fixed blocks (55) of brake disc (54), two fixed block (55) are relative one side fixedly connected with intermediate lever (56), the surface rotation of intermediate lever (56) is connected with separation blade (57).

6. The braking device for wind power generation according to claim 5, wherein: the baffle plate (57) is provided with a through groove (58) at the connection position of the middle rod (56), a torsion spring (59) is sleeved on the surface of the middle rod (56) in the through groove (58), one end of the torsion spring (59) is fixedly connected with the surface of the middle rod (56), and the other end of the torsion spring (59) is fixedly connected with the front surface of the baffle plate (57).