High-speed brake device of fan

Abstract

The utility model relates to a high-speed brake device of a fan, which comprises a first disc body and a second disc body which are fixedly connected, and wear-resistant layers are arranged on the surfaces of the first disc body and the second disc body; the second disc body comprises two sub-discs and a plurality of fixing bolts, and the two sub-discs are connected into a whole through the fixing bolts. The brake disc comprises the first disc body and the second disc body, the second disc body comprises the two sub-discs, the brake disc is integrally split, after friction abrasion, the first disc body or the sub-discs which are greatly abraded are specifically replaced, the whole brake disc does not need to be replaced, and cost is saved. The wear-resistant layers are arranged on the surfaces of the first disc body and the second disc body, so that wear to the brake disc body is reduced, and the service life of the brake disc body is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of wind turbine generator sets, and in particular relates to a high-speed braking device for wind turbines. Background Technology

[0002] When troubleshooting or performing routine maintenance on wind turbine generator sets, the unit needs to be completely stopped. High-speed brake discs are used for friction braking during shutdown and are a critical component of wind turbine generator sets. Most existing high-speed brake discs are single, integral discs. When wear becomes significant, the entire disc becomes unusable and requires replacement, resulting in high long-term economic costs. Therefore, a split-type brake disc design is proposed, allowing for targeted replacement of the more worn parts of the disc, thus saving costs. Utility Model Content

[0003] The purpose of this utility model is to provide a high-speed braking device for wind turbines to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A high-speed braking device for a wind turbine includes: a first disc and a second disc fixedly connected, wherein a wear-resistant layer is provided on the surface of both the first disc and the second disc;

[0006] The second disc body includes two sub-discs and multiple fixing bolts, and the two sub-discs are connected by the fixing bolts to form a whole.

[0007] As a further improvement of this utility model, the dividing plate is fan-shaped with a fan-shaped slot in the middle; the dividing plate includes a middle part and connecting parts located at both ends of the middle part, the thickness of the connecting parts is less than the thickness of the middle part, and one side of the connecting parts is on the same plane as one side of the middle part; the connecting parts are provided with multiple through holes for the fixing bolts to pass through.

[0008] As a further improvement of this utility model, the connecting parts located on both sides of the through hole are provided with countersunk holes coaxial with the through hole.

[0009] As a further improvement of this utility model, the plurality of through holes are linearly and evenly distributed on the connecting part.

[0010] As a further improvement of this utility model, the first disc body is provided with a plurality of connection holes, which are evenly distributed around the circumference. The first disc body located on both sides of the connection holes is provided with countersunk holes that are coaxial with the connection holes.

[0011] The second disk body is provided with a plurality of connection holes two corresponding to the connection hole one. The plurality of connection holes two are evenly distributed around the circumference. The second disk body located on both sides of the connection hole two is provided with countersunk holes two coaxial with the connection hole two.

[0012] As a further improvement of this utility model, connecting bolts are provided in the first connecting hole and the second connecting hole.

[0013] The beneficial effects of adopting the above technical solution are as follows:

[0014] This invention includes a first disc body and a second disc body, with the second disc body comprising two sub-discs. By separating the brake disc into individual parts, the more worn first disc body or sub-discs can be replaced selectively after friction and wear, instead of replacing the entire disc, thus saving costs. Both the first and second disc bodies have wear-resistant layers on their surfaces, reducing wear on the brake disc body and extending its service life. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another angle;

[0017] Figure 3 This is a schematic diagram of the first disc structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the disk-splitting structure of this utility model;

[0019] The markings in the diagram are as follows: 1 First disc, 2 Second disc, 4 Sub-disc, 5 Fixing bolt, 6 Hole slot, 7 Middle part, 8 Connecting part, 9 Through hole, 10 Countersunk hole, 11 Connecting hole one, 12 Countersunk hole one, 13 Connecting hole two, 14 Countersunk hole two, 15 Connecting bolt. Detailed Implementation

[0020] To better understand the purpose, structure, and function of this utility model, a clear and complete description of this utility model will be provided below in conjunction with the accompanying drawings.

[0021] like Figures 1-4 The high-speed braking device for a wind turbine shown includes: a first disc 1 and a second disc 2 fixedly connected together. The first disc 1 and the second disc 2 are assembled to form an integral brake disc. After friction and wear, the first disc 1 or the second disc 2 with greater wear is replaced selectively, without replacing the whole disc, thus saving costs.

[0022] In this embodiment, the first disc body 1 is provided with a plurality of connecting holes 11, which are evenly distributed circumferentially. Specifically, ten connecting holes 11 are provided near the center hole of the first disc body 1. The first disc body 1 located on both sides of the connecting holes 11 is provided with countersunk holes 12 coaxial with the connecting holes 11. The second disc body 2 is provided with a plurality of connecting holes 2 13 corresponding to the connecting holes 11, which are evenly distributed circumferentially. The second disc body 2 located on both sides of the connecting holes 2 13 is provided with countersunk holes 2 14 coaxial with the connecting holes 2 13. Connecting bolts 15 are provided in the connecting holes 11 and the connecting holes 2 13 to fix the first disc body 1 and the second disc body 2 together. The connecting bolts 15 can be countersunk bolts. In use, the nut of the connecting bolt 15 and the matching nut are located in the countersunk holes 12 and 2 14 respectively to avoid obstructing the movement of the brake disc.

[0023] Both the first disc body 1 and the second disc body 2 have a wear-resistant layer on their surfaces to reduce wear on the brake disc body and improve its service life. The wear-resistant layer is a wear-resistant coating formed on the surface of the brake disc by laser cladding technology, which significantly reduces wear, reduces the emission of fine particles, and extends service life.

[0024] The second disc body 2 includes two sub-discs 4 and multiple fixing bolts 5. The two sub-discs 4 are connected by the fixing bolts 5 to form a whole. The second disc body 2 is also designed as a split structure, allowing for more precise replacement of worn parts. Figure 4 As shown, the dividing plate 4 is fan-shaped with a fan-shaped slot 6 in the middle; the dividing plate 4 includes a middle part 7 and connecting parts 8 located at both ends of the middle part 7. The thickness of the connecting parts 8 is less than the thickness of the middle part 7. Specifically, the thickness of the connecting parts 8 is half the thickness of the middle part 7. When the two dividing plates 4 are combined, it is ensured that the two surfaces of the two dividing plates 4 are located on the same plane, and one side of the two dividing plates 4 is located on the same plane as one side of the middle part 7; the connecting parts 8 are provided with multiple through holes 9 for the fixing bolts 5 to pass through.

[0025] Furthermore, the connecting portions 8 located on both sides of the through hole 9 are provided with countersunk holes 10 coaxial with the through hole 9. During installation, the nuts of the fixing bolts 5 and the nuts that cooperate with them are located inside the countersunk holes 10. Furthermore, a plurality of through holes 9 are linearly and evenly distributed on the connecting portions 8.

[0026] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A high-speed braking device for a wind turbine, characterized in that: It includes: A first disc (1) and a second disc (2) are fixedly connected, and a wear-resistant layer is provided on the surface of both the first disc (1) and the second disc (2); The second disc body (2) includes two sub-discs (4) and multiple fixing bolts (5), and the two sub-discs (4) are connected to form a whole by the fixing bolts (5).

2. The high-speed braking device for a wind turbine according to claim 1, characterized in that: The dividing plate (4) is fan-shaped with a fan-shaped slot (6) in the middle; the dividing plate (4) includes a middle part (7) and connecting parts (8) located at both ends of the middle part (7). The thickness of the connecting part (8) is less than the thickness of the middle part (7), and one side of the connecting part (8) is on the same plane as one side of the middle part (7); the connecting part (8) is provided with multiple through holes (9) for passing through the fixing bolt (5).

3. A high-speed braking device for a wind turbine according to claim 2, characterized in that: The connecting portions (8) located on both sides of the through hole (9) are provided with countersunk holes (10) that are coaxial with the through hole (9).

4. A high-speed braking device for a wind turbine according to claim 2, characterized in that: Multiple through holes (9) are linearly and evenly distributed on the connecting part (8).

5. A high-speed braking device for a wind turbine according to claim 1, characterized in that: The first disk body (1) is provided with a plurality of connection holes (11), which are evenly distributed around the periphery. The first disk body (1) located on both sides of the connection holes (11) is provided with countersunk holes (12) coaxial with the connection holes (11). The second disk (2) is provided with a plurality of connecting holes (13) corresponding to the connecting hole (11). The plurality of connecting holes (13) are evenly distributed around the periphery. The second disk (2) located on both sides of the connecting hole (13) is provided with countersunk holes (14) coaxial with the connecting hole (13).

6. A high-speed braking device for a wind turbine according to claim 5, characterized in that: Connecting bolts (15) are provided in the first connecting hole (11) and the second connecting hole (13).

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