Locking device of wind generating set

Abstract

The utility model relates to the technical field of wind power generation, in particular to a locking device of a wind generating set, which comprises the wind generating set. The wind generating set is rotationally provided with a mounting shaft, a gear box is arranged in the wind generating set, and the gear box is connected with the mounting shaft in a matched mode. A mounting shell is arranged on the gearbox, two brake mechanisms are arranged in the mounting shell, a brake disc is arranged on the mounting shaft, the brake disc and the mounting shaft are coaxially distributed, and the two brake mechanisms are symmetrically distributed in the mounting shell. The two brake mechanisms are arranged in the mounting shell and located at the two ends of the brake disc, the brake mechanisms on the two sides are started at the same time to lock the brake disc, the braking speed is increased, and the mounting shaft and the brake disc are stressed more evenly.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, and particularly relates to a locking device for a wind turbine generator set. Background Art

[0002] A wind turbine generator set is a system that converts the kinetic energy of wind into electrical energy. The wind turbine generator set includes a wind wheel and a generator; the wind wheel consists of blades, a hub, reinforcement members, etc.; it has functions such as the blades rotating under the action of wind to generate electricity and the generator head rotating. During the operation and maintenance of wind power generation, maintenance personnel sometimes need to enter the wind wheel and even need to replace rotating components in the nacelle such as the rotating shaft. To ensure the safety of the staff, current wind power generation includes a wind wheel locking system for braking and locking the wind wheel to restrict the rotation of the wind wheel.

[0003] Chinese Patent with Publication No. CN115839303A discloses an automatic blade locking device for a wind turbine generator set, which includes a rotating assembly including a hub and blades, a mounting assembly disposed on one side of the rotating assembly, including a nacelle and a base, and a braking assembly disposed inside the mounting assembly, including a brake disc, a friction member, and a warning member. The device of the present invention is cooperated by the rotating assembly, the mounting assembly, and the braking assembly, and can remotely control the braking of the high-speed shaft and the blade locking in special situations such as during typhoons, reducing the operation and maintenance workload and improving work efficiency.

[0004] However, the above technical solution has the following defects: In the above automatic blade locking device for a wind turbine generator set, the friction plate is pressed against the brake disc for braking, but the heat generated by friction causes damage to the friction plate and the brake pad, reducing the service life of the device. The friction plate is located on one side of the brake pad, resulting in uneven force on the brake pad and the shaft. Content of the Utility Model

[0005] The purpose of the utility model is to propose a locking device for a wind turbine generator set aiming at the problems existing in the background art.

[0006] The technical solution of the utility model: A locking device for a wind turbine generator set includes a wind turbine generator set;

[0007] The wind turbine generator set is rotatably provided with a mounting shaft, and a gearbox is arranged inside the wind turbine generator set, and the gearbox is cooperatively connected with the mounting shaft;

[0008] The gearbox is provided with a mounting shell, two braking mechanisms are arranged inside the mounting shell, a brake disc is arranged on the mounting shaft, the brake disc is coaxially distributed with the mounting shaft, and the two braking mechanisms are symmetrically distributed inside the mounting shell.

[0009] Preferably, the braking mechanism includes a mounting plate, a guide rod, and a double-threaded rod;

[0010] The double-threaded rod is rotatably connected to the inner wall of the installation shell, and the guide rod is connected to the inner wall of the installation shell. The double-threaded rod and the guide rod are arranged side by side;

[0011] There are two mounting plates. Both mounting plates are slidably connected to the guide rod. The two mounting plates are in threaded fit with the double-threaded rod and are symmetrically distributed on the double-threaded rod;

[0012] Mounting rods are provided on the mounting plates. The two mounting rods are respectively located on both sides of the brake disc. Pressing blocks are provided at one ends of the mounting rods close to the brake disc;

[0013] A driving assembly is provided inside the installation shell. The driving assembly is in transmission connection with the double-threaded rods in the two braking mechanisms.

[0014] Preferably, a plurality of heat dissipation plates are provided on the surfaces of the mounting rods away from the brake disc. The plurality of heat dissipation plates are evenly distributed side by side on the surface of the mounting rod.

[0015] Preferably, the mounting plate and the mounting rod are in a T shape.

[0016] Preferably, a plurality of convex blocks are provided at one end of the pressing block close to the brake disc.

[0017] Preferably, two heat dissipation fans are provided on the installation shell. The two heat dissipation fans are symmetrically distributed on the installation shell.

[0018] Preferably, a plurality of heat dissipation holes are provided on the installation shell. The plurality of heat dissipation holes are evenly distributed on the installation shell.

[0019] Compared with the prior art, the above technical solution of the present utility model has the following beneficial technical effects:

[0020] 1. In the present utility model, two braking mechanisms are provided inside the installation shell. The two braking mechanisms are located at both ends of the brake disc. The two braking mechanisms are started simultaneously to lock the brake disc, accelerating the braking speed and making the force on the installation shaft and the brake disc more uniform.

[0021] 2. In the present utility model, heat dissipation fans are provided on the installation shell. When the heat dissipation fans are started, the air flow rate inside the installation shell is accelerated, further dissipating heat from the braking mechanism and the brake disc, and making the service life of the brake disc and the braking mechanism longer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a perspective view of a locking device for a wind turbine generator proposed by the present utility model.

[0023] Figure 2 It is a schematic structural diagram of a locking device for a wind turbine generator proposed by the present utility model.

[0024] Figure 3 It is a schematic structural diagram of a braking mechanism in an embodiment proposed by the present utility model.

[0025] Reference numerals: 1, gearbox; 2, mounting housing; 3, heat dissipation holes; 4, mounting shaft; 5, cooling fan; 6, mounting plate; 7, heat dissipation plate; 8, brake disc; 9, guide rod; 10, double threaded rod; 11, drive assembly; 12, mounting rod; 13, wind turbine generator; 14, pressing block. Detailed implementation manners

[0026] Embodiment 1

[0027] As Figures 1-3 shown, a locking device for a wind turbine generator proposed by the present utility model includes a wind turbine generator 13;

[0028] The wind turbine generator 13 is rotatably provided with a mounting shaft 4, and a gearbox 1 is provided inside the wind turbine generator 13. The gearbox 1 is cooperatively connected with the mounting shaft 4;

[0029] The gearbox 1 is provided with a mounting housing 2, two braking mechanisms are provided inside the mounting housing 2, a brake disc 8 is provided on the mounting shaft 4, the brake disc 8 and the mounting shaft 4 are coaxially distributed, and the two braking mechanisms are symmetrically distributed inside the mounting housing 2.

[0030] In the present utility model, two braking mechanisms are provided inside the mounting housing 2. The two braking mechanisms are located at both ends of the brake disc 8. The two side braking mechanisms are started simultaneously to lock the brake disc 8, accelerating the braking speed and making the forces on the mounting shaft 4 and the brake disc 8 more uniform.

[0031] Embodiment 2

[0032] As Figures 2-3 shown, a locking device for a wind turbine generator proposed by the present utility model. Compared with Embodiment 1, in this embodiment, the braking mechanism includes a mounting plate 6, a guide rod 9 and a double threaded rod 10;

[0033] The double threaded rod 10 is rotatably connected to the inner wall of the mounting housing 2, the guide rod 9 is connected to the inner wall of the mounting housing 2, and the double threaded rod 10 and the guide rod 9 are arranged side by side;

[0034] There are two mounting plates 6. Both of the two mounting plates 6 are slidably connected to the guide rod 9, and the two mounting plates 6 are in threaded cooperation with the double threaded rod 10. The mounting plates 6 are symmetrically distributed on the double threaded rod 10;

[0035] Mounting rods 12 are provided on the mounting plates 6. The two mounting rods 12 are respectively located on both sides of the brake disc 8, and pressing blocks 14 are provided at one ends of the mounting rods 12 close to the brake disc 8;

[0036] Furthermore, multiple protrusions are provided at one end of the pressing block 14 close to the brake disc 8, increasing the friction between the pressing block 14 and the brake disc 8.

[0037] Further, a plurality of heat dissipation plates 7 are provided on the surface of the mounting rod 12 away from the brake disc 8, and the plurality of heat dissipation plates 7 are evenly distributed side by side on the surface of the mounting rod 12. The heat on the mounting rod 12 is conducted to the plurality of heat dissipation plates 7, facilitating the heat dissipation of the mounting rod 12.

[0038] Further, the mounting plate 6 and the mounting rod 12 are in a T shape.

[0039] A driving assembly 11 is provided in the mounting shell 2, and the driving assembly 11 is drivingly connected to the double threaded rod 10 in the two braking mechanisms.

[0040] In this embodiment, when the driving assembly 11 is started, the double threaded rod 10 in the two braking mechanisms rotates. The two mounting plates 6 on one double threaded rod 10 are in threaded fit connection with the double threaded rod 10, and the two mounting plates 6 approach each other, further driving the two mounting rods 12 and the pressing blocks 14 to approach the brake disc 8 and clamp both sides of the brake disc 8. Braking mechanisms are provided on both sides of the brake disc 8 to make the forces on both sides of the brake disc 8 uniform.

[0041] Embodiment III

[0042] As Figures 1-3 shown, a locking device for a wind turbine generator set proposed by the present utility model, compared with Embodiment I, in this embodiment, two cooling fans 5 are provided on the mounting shell 2, and the two cooling fans 5 are symmetrically distributed on the mounting shell 2.

[0043] Further, a plurality of heat dissipation holes 3 are provided on the mounting shell 2, and the plurality of heat dissipation holes 3 are evenly distributed on the mounting shell 2.

[0044] In this embodiment, a cooling fan 5 is provided on the mounting shell 2. When the cooling fan 5 is started, the air flow rate inside the mounting shell 2 is increased, further dissipating heat from the braking mechanism and the brake disc 8.

[0045] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited thereto. Various changes can be made without departing from the gist of the present utility model within the knowledge scope of those skilled in the art to which the present utility model pertains.

Claims

1. A locking device for a wind turbine generator set, characterized in that: including a wind turbine generator set (13); The wind generator set (13) is rotatably provided with a mounting shaft (4), a gear box (1) is provided inside the wind generator set (13), and the gear box (1) is cooperatively connected with the mounting shaft (4); A mounting shell (2) is provided on the gear box (1), two brake mechanisms are provided in the mounting shell (2), a brake disc (8) is provided on the mounting shaft (4), the brake disc (8) is coaxially distributed with the mounting shaft (4), and the two brake mechanisms are symmetrically distributed in the mounting shell (2).

2. A locking device for a wind turbine generator set according to claim 1, characterized in that: The braking mechanism comprises a mounting plate (6), a guide rod (9) and a double-threaded rod (10); The double threaded rod (10) is rotatably connected to the inner wall of the mounting shell (2), the guide rod (9) is connected to the inner wall of the mounting shell (2), and the double threaded rod (10) and the guide rod (9) are arranged side by side; Two mounting plates (6) are provided, and both mounting plates (6) are slidably connected to the guide rod (9). The two mounting plates (6) are threadedly connected to the double-threaded rod (10), and the mounting plates (6) are symmetrically distributed on the double-threaded rod (10); A mounting rod (12) is provided on the mounting plate (6), and the two mounting rods (12) are respectively located on both sides of the brake disc (8), and a pressure block (14) is provided at one end of the mounting rod (12) close to the brake disc (8); A driving assembly (11) is arranged in the mounting shell (2), and the driving assembly (11) is transmission-connected to the double-threaded rods (10) in the two braking mechanisms.

3. A locking device for a wind turbine generator set according to claim 2, characterized in that: A plurality of heat sinks (7) are provided on the surface of the mounting rod (12) away from the brake disc (8), and the plurality of heat sinks (7) are evenly distributed side by side on the surface of the mounting rod (12).

4. A locking device for a wind turbine generator set according to claim 2, characterized in that: The mounting plate (6) and the mounting rod (12) are in a T-shape.

5. The locking device of a wind turbine generator set according to claim 2, characterized in that: A plurality of protrusions are arranged at one end of the pressure block (14) close to the brake disc (8), and the protrusions are evenly distributed on the surface of the pressure block (14).

6. The locking device of a wind turbine generator set according to claim 1, characterized in that: Two cooling fans (5) are provided at one end of the mounting shell (2) away from the gear box (1), and the two cooling fans (5) are symmetrically distributed on the mounting shell (2).

7. The locking device of a wind turbine generator set according to claim 1, characterized in that: A plurality of heat dissipation holes (3) are arranged on the installation shell (2), and the plurality of heat dissipation holes (3) are evenly distributed on the installation shell (2).

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