CN219159404U

CN219159404U - Brake orifice plate for yaw brake device

Info

Publication number: CN219159404U
Application number: CN202320002673.5U
Authority: CN
Inventors: 尹奇奇; 于力; 朱国清
Original assignee: Shandong Hongyu Machinery Technology Co ltd
Current assignee: Shandong Hongyu Machinery Technology Co ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-06-09
Anticipated expiration: 2033-01-03

Abstract

The utility model discloses a brake orifice plate for a yaw brake device, which comprises a lower mounting plate and an upper mounting plate, wherein a group of brake discs are fixedly connected to one sides of the lower mounting plate and the upper mounting plate opposite to each other. According to the utility model, the brake face of the brake disc is provided with the plurality of groups of raised half-round heads, when the brake block is driven by the brake to be extruded on the brake face, the half-round heads sink into one side of the brake block facing the brake face, so that the effect of increasing friction force and improving braking effect is achieved, friction time is reduced, braking efficiency is improved, the abrasion degree of the brake block is synchronously slowed down, meanwhile, the brake face has no sharp corner parts, the abrasion degree of the brake block is slowed down again, the service life of the brake part in a yaw system of the wind turbine generator is greatly prolonged, the brake disc is provided with two pieces, and a plurality of groups of H-shaped supporting frameworks are additionally arranged between the two pieces, so that a heat dissipation cavity can be formed between the two pieces of brake disc to improve heat dissipation effect, and the integral strength is still ensured.

Description

Brake orifice plate for yaw brake device

Technical Field

The utility model relates to the technical field of wind turbines, in particular to a brake orifice plate for a yaw brake device.

Background

The yaw system of wind power generation, also called a wind aligning device, is a part of a nacelle of a wind driven generator, and has the function of being capable of rapidly and stably aligning wind direction when the direction of a wind speed vector changes, so that a wind wheel obtains maximum wind energy, a brake part is arranged on the yaw system besides the yaw part, and the brake system needs to keep enough friction force to ensure the stability of the nacelle when the yaw system does not work.

In the prior art, the yaw braking system is generally composed of a brake disc (a brake hole plate), a brake and a brake pad arranged on the brake, the brake disc is clamped by the brake pad driven by the brake to obtain a braking effect, in use, the brake pad is a wearing part and needs to be replaced regularly, but the replacement process is very complicated and the whole shutdown of a wind turbine generator is required, so that wind power technicians work in order to improve the service life of the brake pad at present, the structure of the brake disc can influence the service life of the brake pad except the material and the structure of the brake pad, such as the conventional brake disc, in order to conveniently clean ash generated after friction between the brake disc and the brake disc, and facilitate heat dissipation, a plurality of grooves are formed in the braking surface of the brake disc, the edges of the grooves are scratched to rub the brake pad, so that the brake pad is abnormally worn, the service life of the brake pad is reduced, and the defect of the yaw disc is required to be improved, so that the service life of a braking part of the yaw braking system is prolonged.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a brake orifice plate for a yaw brake device.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a brake orifice plate for yaw brake equipment, includes the mounting disc down, goes up the mounting disc, the one side that the mounting disc is relative down is equal fixedly connected with a set of brake disc, two sets of fixedly connected with multiunit braced frame between the brake disc, two sets of just be located multiunit braced frame outside and be the heat dissipation chamber between the brake disc is relative one side, the mounting disc down, go up mounting disc and two sets of brake disc inside wall all are provided with through-hole and two sets of brake disc through-hole diameters and all are less than mounting disc down, go up the mounting disc through-hole diameter, two sets of the one side that the brake disc is on the back of the body just is the braking face in the part of mounting disc down, last mounting disc through-hole inside wall, be provided with the multiunit on the braking face and be used for increasing frictional force and avoid scraping the semicircle head of brake block, semicircle head passes through fastening screw and brake disc threaded connection, be provided with locking structure between fastening screw and the brake disc.

As a further description of the above technical solution:

the support frameworks are all H-shaped in overlooking projection, and are distributed between two groups of brake discs in a circumference equal division mode by taking the central connecting line of the two groups of brake discs as the circle center.

As a further description of the above technical solution:

the one end towards the brake disc of semicircle head is provided with the installation handle, still be provided with straight body end between semicircle head and the installation handle, the installation handle cross-section is square, brake disc braking surface department inner wall is provided with the square hole, square hole both ends oral area all is provided with the counter bore, installation handle and square hole sliding connection, straight body section and the square hole between semicircle head and the installation handle are located one side counter bore sliding connection of braking surface and straight body section length and this counter bore degree of depth unanimity, the fastening screw sets up in the square hole and keeps away from one side counter bore of semicircle head inside.

As a further description of the above technical solution:

the semicircular head, the mounting handle and the straight body end are integrally manufactured, and the semicircular head, the mounting handle and the straight body end are made of high-wear-resistance alloy steel.

As a further description of the above technical solution:

the anti-loosening structure comprises an elastic cushion and an anti-loosening gasket, wherein the anti-loosening gasket and the elastic cushion are sequentially sleeved on the outer wall of a fastening screw and positioned between a screw head of the fastening screw and a brake disc according to the vertical distribution, and a plurality of groups of plane teeth are arranged on one side, facing the brake disc, of the anti-loosening gasket.

As a further description of the above technical solution:

the lower mounting plate, the upper mounting plate and the two groups of brake discs are provided with a plurality of groups of mounting holes for fixing at positions close to the outer wall of the circumference, and the plurality of groups of mounting holes are vertically communicated and sequentially penetrate through the upper mounting plate, the two groups of brake discs and the lower mounting plate.

The utility model has the following beneficial effects:

1. compared with the prior art, the brake hole plate for the yaw brake device is characterized in that a plurality of groups of raised semicircular heads are arranged on the braking surface of the brake disc, when the brake pad is driven and extruded on the braking surface by the brake, the semicircular heads sink into one side of the brake pad facing the braking surface, so that the friction force is increased, the braking effect is improved, the friction time is reduced, the braking efficiency is improved, the abrasion degree of the brake pad is synchronously slowed down, meanwhile, the braking surface has no sharp corner part, the abrasion degree of the brake pad is slowed down again, the service life of the braking part in the yaw system of the wind turbine generator is greatly prolonged, the wind turbine generator can be braked in a relatively short time, and ash generated by friction is also greatly reduced, so that the influence on the follow-up braking is avoided;

2. compared with the prior art, the brake hole plate for the yaw brake device is provided with the brake disc which is arranged in two pieces, and a plurality of groups of H-shaped supporting frameworks are additionally arranged between the two pieces, so that a heat dissipation cavity can be formed between the two pieces of brake discs to improve the heat dissipation effect, and the overall strength is still ensured.

Drawings

FIG. 1 is a schematic diagram of the whole structure of a brake orifice plate for a yaw brake device according to the present utility model;

FIG. 2 is a schematic view of a supporting framework of a brake orifice plate for a yaw brake device according to the present utility model;

FIG. 3 is a partial cross-sectional view of a connection structure between a half-round head of a brake orifice plate and a brake disc for a yaw brake device according to the present utility model;

FIG. 4 is a schematic diagram of a half-round head and mounting handle of a brake orifice plate for a yaw brake device according to the present utility model;

FIG. 5 is a top view of a part of a brake disc of a brake orifice plate for a yaw brake device according to the present utility model;

fig. 6 is a schematic structural view of a lock washer of a brake orifice plate for a yaw brake device according to the present utility model.

Legend description:

1. a lower mounting plate; 2. an upper mounting plate; 3. a brake disc; 4. a support skeleton; 5. a heat dissipation cavity; 6. a mounting hole; 7. a half round head; 8. a mounting handle; 9. fastening a screw; 10. a spring pad; 11. a lock washer; 12. square holes; 13. planar teeth.

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.

Referring to fig. 1 to 6, the utility model provides a brake orifice plate for a yaw brake apparatus: the device comprises a lower mounting disc 1 and an upper mounting disc 2, wherein one side, opposite to the lower mounting disc 1 and the upper mounting disc 2, of each of the two groups of brake discs 3 is fixedly connected with a group of brake discs 3, a plurality of groups of mounting holes 6 for fixing are formed in the inner walls of the lower mounting disc 1, the upper mounting disc 2 and the two groups of brake discs 3 and close to the outer walls of the circumferences, and the plurality of groups of mounting holes 6 are vertically penetrated and sequentially penetrate through the upper mounting disc 2, the two groups of brake discs 3 and the lower mounting disc 1;

a plurality of groups of supporting frameworks 4 are fixedly connected between the two groups of brake discs 3, a radiating cavity 5 is arranged between opposite sides of the two groups of brake discs 3 and is positioned outside the plurality of groups of supporting frameworks 4, the overlooking projection of the plurality of groups of supporting frameworks 4 is H-shaped, the plurality of groups of supporting frameworks 4 are uniformly distributed between the two groups of brake discs 3 in a circumference equal mode by taking the central connecting line of the two groups of brake discs 3 as the circle center, the H-shaped supporting frameworks 4 ensure the strength of the two groups of brake discs 3, the situation of distortion does not occur, the brake discs 3 are arranged into two groups, and the two groups of brake discs are separated by the supporting frameworks 4, so that the radiating cavity 5 is formed, and the radiating effect is good;

the brake pad friction protection device comprises a lower mounting disc 1, an upper mounting disc 2 and two groups of brake discs 3, wherein through holes are formed in the inner side walls of the two groups of brake discs 3, the diameters of the through holes of the two groups of brake discs 3 are smaller than those of the through holes of the lower mounting disc 1 and the upper mounting disc 2, one surface of each of the two groups of brake discs 3, which is opposite to each other, is provided with a counter sunk hole, and the parts of the inner side walls of the through holes of the lower mounting disc 1 and the upper mounting disc 2 are braking surfaces;

the semicircular head 7, the mounting handle 8 and the straight body end are integrally manufactured, the semicircular head 7, the mounting handle 8 and the straight body end are made of high-wear-resistance alloy steel, and the high-wear-resistance alloy steel can resist high temperature and abrasion, so that the service life is prolonged;

the anti-loosening structure is arranged between the fastening screw 9 and the brake disc 3 and comprises an elastic pad 10 and an anti-loosening washer 11, the anti-loosening washer 11 and the elastic pad 10 are sequentially sleeved on the outer wall of the fastening screw 9 and positioned between the screw head of the fastening screw 9 and the brake disc 3 according to the up-down distribution, a plurality of groups of plane teeth 13 are arranged on one side, facing the brake disc 3, of the anti-loosening washer 11, which is matched with the anti-loosening washer 11 with the plane teeth 13 through the elastic pad 10, so that the fastening screw 9 can not loosen in use.

Working principle: the surface area of the half heads 7 is larger than the overlooking projection area of the half heads, so that the contact area between the half heads 7 and the brake pad can be greatly increased, friction force can be improved, meanwhile, when the brake pad is controlled to press against the brake surface by the brake, the half heads 7 sink into the brake pad, so that the friction relation between the brake pad and the brake surface is not planar friction any more, the resistance of the half heads 7 to the brake pad is increased, braking performance is greatly increased, friction time is reduced, meanwhile, the surface of the brake surface is not planar or arc surface, no corner is formed, the brake pad cannot be scratched, service life of the brake pad is prolonged, the half heads 7, the mounting handles 8 and the straight body end are made of high-wear alloy steel, the high-temperature-resistant and wear-resistant materials can be realized, the service life is prolonged, the H-shaped supporting frameworks 4 enable the strength of the two groups of brake discs 3 to be ensured, the brake discs 3 are arranged into two groups through the supporting frameworks 4 to be separated, and therefore the heat dissipation cavity 5 is formed, the effect is good, and the heat dissipation screw washer 9 can be fastened and cannot loosen in use by matching the plane teeth 13 with the elastic pad 10.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a brake orifice plate for yaw brake equipment, includes mounting disc (1), last mounting disc (2), its characterized in that down: the anti-loosening device is characterized in that one side, opposite to each other, of the lower mounting disc (1) and the upper mounting disc (2) is fixedly connected with a group of brake discs (3), a plurality of groups of support frameworks (4) are fixedly connected between the two groups of brake discs (3), a plurality of groups of semicircular heads (7) for increasing friction force and avoiding cutting brake pads are arranged on the braking surfaces, the outer sides of the plurality of groups of support frameworks (4) are heat dissipation cavities (5), through holes are formed in the inner side walls of the lower mounting disc (1), the upper mounting disc (2) and the two groups of brake discs (3), the diameter of the through holes of the two groups of brake discs (3) is smaller than that of the lower mounting disc (1) and the diameter of the through holes of the upper mounting disc (2), the parts, opposite to the back surfaces of the brake discs (3), of the two groups of the brake discs are braking surfaces, the semicircular heads (7) are provided with a plurality of groups of semicircular heads for increasing friction force and avoiding cutting brake pads, and the semicircular heads (7) are in threaded connection with the brake discs (3) through fastening screws (9), and anti-loosening structures are arranged between the fastening screws (9) and the brake discs (3).

2. A brake orifice plate for a yaw brake apparatus according to claim 1, wherein: the overlooking projections of the supporting frameworks (4) are all H-shaped, and the supporting frameworks (4) are uniformly distributed between the two groups of brake discs (3) in a circumference mode by taking the central connecting line of the two groups of brake discs (3) as the circle center.

3. A brake orifice plate for a yaw brake apparatus according to claim 2, wherein: the one end of semicircle head (7) orientation brake disc (3) is provided with installation handle (8), still be provided with straight body end between semicircle head (7) and installation handle (8), installation handle (8) cross-section is square, brake disc (3) braking face department inner wall is provided with square hole (12), square hole (12) both ends oral area all is provided with the counter bore, installation handle (8) and square hole (12) sliding connection, straight body section and square hole (12) between semicircle head (7) and installation handle (8) are located one side counter bore sliding connection of braking face and straight body section length and this counter bore degree of depth unanimity, fastening screw (9) set up in one side counter bore inside of keeping away from semicircle head (7) in square hole (12).

4. A brake orifice plate for a yaw brake apparatus according to claim 3, wherein: the novel high-wear-resistance steel alloy is characterized in that the semicircular head (7), the mounting handle (8) and the straight body end are integrally manufactured, and the semicircular head (7), the mounting handle (8) and the straight body end are made of high-wear-resistance alloy steel.

5. The brake orifice plate for a yaw brake apparatus of claim 4, wherein: the anti-loosening structure comprises a spring pad (10) and an anti-loosening gasket (11), wherein the anti-loosening gasket (11) and the spring pad (10) are sequentially sleeved on the outer wall of a fastening screw (9) in an up-down distribution mode and located between a screw head of the fastening screw (9) and a brake disc (3), and a plurality of groups of plane teeth (13) are arranged on one side, facing the brake disc (3), of the anti-loosening gasket (11).

6. The brake orifice plate for a yaw brake apparatus of claim 5, wherein: the lower mounting plate (1), the upper mounting plate (2) and two groups of brake discs (3) are provided with a plurality of groups of mounting holes (6) which are used for fixing at positions close to the outer wall of the circumference, and the plurality of groups of mounting holes (6) are vertically communicated and sequentially penetrate through the upper mounting plate (2), the two groups of brake discs (3) and the lower mounting plate (1).