Brake device of wind power generation set

Abstract

The brake device comprises a box body, a fixing sleeve is arranged at the bottom end of the box body, fixing holes are symmetrically formed in the fixing sleeve, a rotating shaft is arranged at the front end of the box body in a rotating mode, a wind wheel is arranged at the front end of the rotating shaft, a gear speed increasing box is connected to the rear end of the rotating shaft, and the wind wheel is arranged in the gear speed increasing box. The rear end of the gear speed increasing box is connected with a generator, a cover plate is detachably arranged on the upper end face of the box body, two sliding seats are arranged at the top end in the cover plate in a sliding mode, brake pads are detachably arranged at the bottom ends of the two sliding seats, brake discs are arranged on the rotating shaft and correspond to the two brake pads, and the brake pads are detachably arranged on the rotating shaft. An adjusting motor is arranged on the inner wall of the rear end of the cover plate, an adjusting rod is connected to the front end of the adjusting motor, the adjusting rod is rotationally connected with the cover plate, adjusting holes corresponding to the adjusting rod are formed in the two sliding seats, the adjusting rod is in threaded connection with the adjusting holes, and through the design of the brake pad, the brake efficiency is improved, and the service life of the brake pad is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, and more specifically, to a brake device for a wind power generation group. Background Art

[0002] Wind power generation technology is a technology that converts wind energy into mechanical energy and then converts mechanical energy into electrical energy. With the continuous development of wind power generation technology, wind turbines are being used more and more widely. The brake devices of existing wind turbines generally brake the rotating shaft through the contact between brake pads and brake discs. When the existing brake devices are in use, a single brake pad is in contact with the brake disc, the braking efficiency is poor, the service life of the device is short, and after the device has been used for a period of time, the brake pad needs to be replaced. The brake pad replacement operation is relatively troublesome, and there is a lack of a suitable quick replacement mechanism. In addition, when the device is in use, the internal heat of the device forms a path through the heat dissipation grooves arranged on both sides to achieve heat dissipation. The filter net inside the heat dissipation groove is exposed to the external environment for a long time and is prone to damage, and there is a lack of a suitable protective mechanism. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the problems existing in the prior art, the utility model provides a brake device for a wind turbine generator set to solve the technical problems mentioned in the background technology that a single brake pad and a brake disc are in contact, the braking efficiency is poor, and the service life of the device is short.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a braking device of a wind power generation group, comprising a box body, a fixing sleeve is provided at the bottom end of the box body, fixing holes are symmetrically opened on the fixing sleeve, a rotating shaft is rotatably provided at the front end of the box body, a wind wheel is provided at the front end of the rotating shaft, a gear speed increaser is connected to the rear end of the rotating shaft, a generator is connected to the rear end of the gear speed increaser, a cover plate is detachably provided on the upper end surface of the box body, a sliding seat is slidably provided at the top end of the cover plate, two sliding seats are provided, brake pads are detachably provided at the bottom ends of the two sliding seats, brake discs are provided on the rotating shaft corresponding to the two brake pads, an adjusting motor is provided on the inner wall of the rear end of the cover plate, an adjusting rod is connected to the front end of the adjusting motor, the adjusting rod and the cover plate are rotatably connected, and adjustment holes are opened on the two sliding seats corresponding to the adjusting rods, and the adjusting rod and the adjusting hole are threadedly connected.

[0007] The utility model is further configured such that connecting plates are provided on the left and right end faces of the cover plate, first connecting holes are provided on the two connecting plates, second connecting holes are provided on the left and right ends of the box body corresponding to the first connecting holes, and the first connecting hole and the second connecting hole are connected by bolts for easy connection and locking.

[0008] The utility model is further configured that positioning rods are provided at four corners of the lower end surface of the cover plate, and positioning holes are provided on the upper end surface of the box body corresponding to the plurality of positioning rods to perform positioning for installation.

[0009] The utility model is further configured such that the bottom ends of the plurality of slide seats are provided with mounting grooves corresponding to the brake pads, so as to facilitate the installation and positioning of the brake pads.

[0010] The utility model is further configured such that a plurality of the brake pads are symmetrically provided with first mounting holes, a plurality of the mounting grooves are provided with second mounting holes corresponding to the plurality of the first mounting holes, and the first mounting holes and the second mounting holes are connected by bolts to achieve locking of the brake pad installation.

[0011] The utility model is further configured that heat dissipation grooves are provided at both left and right ends of the box body corresponding to the brake disc, and filter nets are provided inside the two heat dissipation grooves to facilitate heat dissipation.

[0012] The utility model is further configured such that baffles are slidably provided at both left and right ends of the box body corresponding to the heat dissipation grooves, a bottom plate is connected to the bottom ends of the two baffles, and a driving mechanism is provided on the box body corresponding to the bottom plate to protect the filter.

[0013] The utility model is further configured such that the driving mechanism includes a driving shaft and a driving motor, the driving shaft is rotatably mounted at the bottom end of the box body, the driving motor is mounted at the top end of the driving shaft, the driving shaft is threadedly connected to the bottom plate, and the position of the baffle is adjusted to achieve driving.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a brake device for a wind power generation group, which has the following beneficial effects:

[0016] 1. Through the design of the brake pad, the adjusting motor drives the adjusting rod, and the adjusting rod and the adjusting hole thread cooperate to realize that the slide seat drives the brake pad to slide. The two brake pads are respectively set with the brake disc. The double brake pads and the brake disc cooperate with synchronous braking to improve the braking efficiency, extend the service life of the brake pad, and facilitate long-term use.

[0017] 2. Through the design of the cover plate, the cover plate can be detachably arranged corresponding to the box body, and the positioning rod and the positioning hole cooperate for positioning, which is convenient for installation and positioning. The first connecting hole on the connecting plate and the second connecting hole on the box body are connected by bolts, which is convenient for disassembly and assembly.

[0018] 3. Through the design of the heat sink and baffle, the heat sink is symmetrically arranged to facilitate internal ventilation and heat dissipation. The baffle provides safe protection for the filter inside the heat sink, improves the protection effect, and avoids damage to the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the overall structure of a preferred braking device for a wind power generation group;

[0020] Figure 2 It is a schematic diagram of the overall structure of a brake device of a wind power generation group preferably without a cover plate installed;

[0021] Figure 3 A cross-sectional view of the internal structure of a casing of a wind power generation unit;

[0022] Figure 4 A schematic diagram of the overall structure of a cover plate preferably used for a brake device of a wind power generation group;

[0023] Figure 5 The present invention is an exploded view of the matching structure of a sliding seat and a brake pad of a brake device of a wind power generation group.

[0024] In the figure: 1. box body; 2. fixing sleeve; 3. fixing hole; 4. rotating shaft; 5. wind wheel; 6. gear speed increaser; 7. generator; 8. cover plate; 9. slide seat; 10. brake pad; 11. brake disc; 12. adjusting motor; 13. adjusting rod; 14. adjusting hole; 15. connecting plate; 16. first connecting hole; 17. second connecting hole; 18. positioning rod; 19. positioning hole; 20. mounting groove; 21. first mounting hole; 22. second mounting hole; 23. heat dissipation groove; 24. filter; 25. baffle; 26. bottom plate; 27. driving shaft; 28. driving motor. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0028] See also Figure 1-5A brake device for a wind power generation group comprises a box body 1, a fixing sleeve 2 is provided at the bottom end of the box body 1, and fixing holes 3 are symmetrically opened on the fixing sleeve 2. A rotating shaft 4 is rotatably provided at the front end of the box body 1, a wind wheel 5 is provided at the front end of the rotating shaft 4, a gear speed increaser 6 is connected to the rear end of the rotating shaft 4, and a generator 7 is connected to the rear end of the gear speed increaser 6. A cover plate 8 is detachably provided on the upper end surface of the box body 1, a slide seat 9 is slidably provided at the top end of the cover plate 8, two slide seats 9 are provided, and brake pads 10 are detachably provided at the bottom ends of the two slide seats 9. Brake discs 11 are provided on the rotating shaft 4 corresponding to the two brake pads 10, an adjusting motor 12 is provided on the inner wall at the rear end of the cover plate 8, and an adjusting rod 13 is connected to the front end of the adjusting motor 12, the adjusting rod 13 is rotatably connected to the cover plate 8, and adjusting holes 14 are opened on the two slide seats 9 corresponding to the adjusting rod 13, and the adjusting rod 13 and the adjusting hole 14 are threadedly connected.

[0029] In this embodiment, the external wind force drives the wind wheel 5 to rotate, and the wind wheel 5 drives the rotating shaft 4 to rotate. The gear speed increaser 6 increases the power of the rotating shaft 4 and transmits it to the generator 7. The generator 7 converts the mechanical energy into electrical energy. When braking is needed, the adjusting motor 12 drives the adjusting rod 13 to rotate, and the adjusting rod 13 and the adjusting hole 14 of the slide 9 are threadedly matched. The slide 9 drives the brake pad 10 to slide, and the two sets of brake pads 10 and the brake disc 11 cooperate to brake synchronously.

[0030] More specifically, the cover plate 8 is assembled and disassembled corresponding to the box body 1 , and the brake pad 10 is assembled and disassembled corresponding to the slide seat 9 .

[0031] See also Figure 1-4 As an implementation method of the cover plate 8: connecting plates 15 are provided on the left and right end surfaces of the cover plate 8, and first connecting holes 16 are opened on the two connecting plates 15. Second connecting holes 17 are opened on the left and right ends of the box body 1 corresponding to the first connecting holes 16. The first connecting hole 16 and the second connecting hole 17 are connected by bolts. Positioning rods 18 are provided at the four corners of the lower end surface of the cover plate 8, and positioning holes 19 are opened on the upper end surface of the box body 1 corresponding to the multiple positioning rods 18.

[0032] Specifically, the bolts between the first connecting hole 16 and the second connecting hole 17 are removed, and the cover plate 8 is disassembled to inspect the interior. After the inspection is completed, the positioning rod 18 and the positioning hole 19 are coordinated for positioning and installation, the first connecting hole 16 and the second connecting hole 17 are aligned, and the bolts are passed through and tightened to fix.

[0033] See also Figure 4 and Figure 5 As an implementation method of the brake pad 10: a plurality of slide seats 9 have mounting grooves 20 at their bottom ends corresponding to the brake pads 10, a plurality of brake pads 10 have first mounting holes 21 symmetrically formed thereon, a plurality of mounting grooves 20 have second mounting holes 22 formed thereon corresponding to the plurality of first mounting holes 21, and the first mounting holes 21 and the second mounting holes 22 are connected by bolts.

[0034] Specifically, the brake pad 10 is installed corresponding to the installation groove 20, the first installation hole 21 and the second installation hole 22 are aligned, and the bolts are passed through and tightened to fix.

[0035] See also Figure 1-3 As an implementation method for heat dissipation: heat dissipation grooves 23 are provided at both left and right ends of the box body 1 corresponding to the brake disc 11, and filters 24 are provided inside the two heat dissipation grooves 23. Baffles 25 are slidably provided at both left and right ends of the box body 1 corresponding to the heat dissipation grooves 23. The bottom ends of the two baffles 25 are connected with a bottom plate 26. A driving mechanism is provided on the box body 1 corresponding to the bottom plate 26. The driving mechanism includes a driving shaft 27 and a driving motor 28. The driving shaft 27 is rotatably installed at the bottom end of the box body 1, and the driving motor 28 is installed at the top of the driving shaft 27. The driving shaft 27 and the bottom plate 26 are threadedly connected.

[0036] Specifically, the filter screens 24 of the heat dissipation slots 23 on both sides filter the incoming and outgoing gases, and the heat dissipation slots 23 on both sides form passages to ensure efficient heat dissipation. When heat dissipation is not needed, the drive motor 28 is started, and the drive motor 28 drives the drive shaft 27 to rotate. The drive shaft 27 and the bottom plate 26 are threadedly matched, and the bottom plate 26 drives the baffle 25 to rise and fall, making it convenient for the heat dissipation slots 23 to open and close.

[0037] In summary, the overall equipment is in use:

[0038] When in the braking state, start the adjusting motor 12, the adjusting motor 12 drives the adjusting rod 13 to rotate, the adjusting rod 13 and the adjusting hole 14 of the slide seat 9 are threadedly matched, the slide seat 9 drives the brake pad 10 to slide relative to the cover plate 8, the brake pad 10 and the brake disc 11 cooperate to realize rotation braking and improve braking efficiency.

[0039] When in maintenance state, remove the bolts between the first connecting hole 16 and the second connecting hole 17, disassemble the cover plate 8 and inspect the interior. After the maintenance is completed, the positioning rod 18 and the positioning hole 19 are coordinated for positioning and installation, the first connecting hole 16 and the second connecting hole 17 are aligned, and the bolts are passed through and tightened to fix.

[0040] When in the heat dissipation state, more heat is generated during the braking process, and the drive motor 28 is started. The drive motor 28 drives the drive shaft 27 to rotate. The drive shaft 27 and the bottom plate 26 are threaded together, and the bottom plate 26 drives the baffle 25 to rise and fall. The baffle 25 drops to a suitable position and no longer blocks the heat dissipation groove 23. The heat dissipation grooves 23 on both sides form a passage, and the internal heat diffuses outward. After the heat dissipation is completed, the drive motor 28 rotates in the opposite direction to realize the lifting and lowering of the baffle 25. The baffle 25 protects the filter 24 inside the heat dissipation groove 23.

[0041] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A brake device for a wind power generation group, comprising a housing (1), a fixing sleeve (2) being provided at the bottom end of the housing (1), and fixing holes (3) being symmetrically provided on the fixing sleeve (2), wherein: The front end of the housing (1) is rotatably provided with a rotating shaft (4), the front end of the rotating shaft (4) is provided with a wind wheel (5), the rear end of the rotating shaft (4) is connected with a gear speed increasing box (6), the rear end of the gear speed increasing box (6) is connected with a generator (7), the upper end surface of the housing (1) is detachably provided with a cover plate (8), the top end of the inner part of the cover plate (8) is slidably provided with a slide seat (9), two slide seats (9) are provided, the bottom ends of the two slide seats (9) are detachably provided with brake pads (10), the rotating shaft (4) is provided with brake discs (11) corresponding to the two brake pads (10), the inner wall of the rear end of the cover plate (8) is provided with an adjusting motor (12), the front end of the adjusting motor (12) is connected with an adjusting rod (13), the adjusting rod (13) and the cover plate (8) are rotatably connected, the two slide seats (9) are provided with adjusting holes (14) corresponding to the adjusting rods (13), and the adjusting rods (13) and the adjusting holes (14) are threadedly connected.

2. The brake device of a wind power generation group according to claim 1 is characterized in that: The left and right end surfaces of the cover plate (8) are both provided with connecting plates (15), and the two connecting plates (15) are both provided with first connecting holes (16). The left and right ends of the box body (1) are both provided with second connecting holes (17) corresponding to the first connecting holes (16), and the first connecting hole (16) and the second connecting hole (17) are connected by bolts.

3. The brake device of a wind power generation group according to claim 2 is characterized in that: Positioning rods (18) are provided at four corners of the lower end surface of the cover plate (8), and positioning holes (19) are provided on the upper end surface of the box body (1) corresponding to the plurality of positioning rods (18).

4. The brake device of a wind power generation group according to claim 1, characterized in that: The bottom ends of the plurality of slide seats (9) are each provided with a mounting groove (20) corresponding to the brake pad (10).

5. The brake device of a wind power generation group according to claim 4 is characterized in that: A plurality of the brake pads (10) are symmetrically provided with first mounting holes (21), a plurality of the mounting grooves (20) are provided with second mounting holes (22) corresponding to the plurality of the first mounting holes (21), and the first mounting holes (21) and the second mounting holes (22) are connected by bolts.

6. The brake device of a wind power generation group according to claim 1, characterized in that: The left and right ends of the box body (1) are both provided with heat dissipation grooves (23) corresponding to the brake disc (11), and the two heat dissipation grooves (23) are both provided with filter screens (24) inside.

7. The brake device of a wind power generation group according to claim 6, characterized in that: Baffles (25) are slidably provided at both left and right ends of the box body (1) corresponding to the heat dissipation slots (23); a bottom plate (26) is connected to the bottom ends of the two baffles (25); and a driving mechanism is provided on the box body (1) corresponding to the bottom plate (26).

8. The brake device of a wind power generation group according to claim 7, characterized in that: The driving mechanism comprises a driving shaft (27) and a driving motor (28); the driving shaft (27) is rotatably mounted on the bottom end of the box body (1); the driving motor (28) is mounted on the top end of the driving shaft (27); and the driving shaft (27) and the bottom plate (26) are threadedly connected.

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