Locking device of wind generating set

Abstract

The utility model relates to a locking device of a wind generating set. The locking device comprises a main shaft, one end of the main shaft is sleeved with a hub, one end of the hub is fixedly connected with a linkage gear rotationally connected with the main shaft, the outer surface of the main shaft is sleeved with a rotating disc, and one side of the rotating disc is provided with a positioning disc fixedly connected with the main shaft. The utility model relates to the technical field of wind driven generators. According to the locking device of the wind generating set, the driving mechanism drives the rotating disc to rotate, the rotating gear rotates on the peripheral side of the linkage gear and makes contact with the locking gear, and at the moment, the locking gear and the rotating gear can be mutually clamped; when the locking gear and the rotating gear are mutually clamped, the linkage gear, the locking gear and the rotating gear are in contact at the same time, the three gears balance each other, the hub and the main shaft are mutually fixed, and the wind driven generator is locked and prevented from rotating.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbines, in particular to a locking device for a wind turbine generator set. Background Art

[0002] A wind turbine generator is a power device that converts wind energy into mechanical work. The mechanical work drives the rotor to rotate, and finally outputs alternating current. A wind turbine generator generally consists of components such as a wind wheel, a generator, a yaw device, a tower, a speed limit safety mechanism, and an energy storage device.

[0003] The working principle of a wind turbine generator is relatively simple. The wind wheel rotates under the action of wind force. It converts the kinetic energy of the wind into the mechanical energy of the wind wheel shaft. The generator rotates driven by the wind wheel shaft to generate electricity.

[0004] In the prior art, a wind turbine generator usually has a locking device for fixing the wind turbine generator during strong winds and maintenance to prevent it from rotating, so as to avoid danger to maintenance personnel. However, most of the existing locking devices are set with locking pins. When locking the hub of the wind turbine generator, it is necessary to align the wheel rail with the locking pin hole before the wind turbine generator can be locked, and the operation is very inconvenient. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a locking device for a wind turbine generator set to facilitate solving the technical problems mentioned in the above background art.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] A locking device for a wind turbine generator set includes a main shaft. One end of the main shaft is sleeved with a hub. One end of the hub is fixedly connected with a linkage gear rotatably connected to the main shaft. The outer surface of the main shaft is sleeved with a rotating disc. One side of the rotating disc is provided with a positioning disc fixedly connected to the main shaft. The outer peripheral side of the rotating disc is provided with a rotating shaft rod. The outer surface of the rotating shaft rod is sleeved with a rotating gear. The outer peripheral side of the positioning disc is provided with a fixed shaft rod. The outer surface of the fixed shaft rod is provided with a locking gear. One side of the rotating disc is provided with a driving mechanism.

[0008] Furthermore, a fixing hole is opened on the outer peripheral side of the hub, and a fan blade shaft rod is arranged inside the fixing hole. A rotational speed sensor is arranged at the top of the hub.

[0009] Further, the driving mechanism includes an annular frame which is sleeved on the outer surface of the main shaft and fixedly connected to the main shaft. A worm wheel disc is rotatably installed on one side of the annular frame. A rotating shaft frame is arranged on one side of the annular frame. A driving worm is rotatably installed in the middle of the rotating shaft frame. The driving worm is meshed with the worm wheel disc.

[0010] Further, the worm wheel disc is sleeved on the outer peripheral side of the main shaft and fixedly connected to the rotating disc.

[0011] Further, an installation frame is arranged on the bottom side of the annular frame. A driving motor is arranged at the upper end of the installation frame. The motor shaft of the driving motor is connected to the driving worm. The driving motor is in signal connection with the rotation speed sensor.

[0012] Further, both the locking gear and the rotating gear are meshed with the linkage gear, and the gear specifications of the locking gear and the rotating gear are equal.

[0013] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0014] 1. For the locking device of a wind turbine generator, the driving mechanism drives the rotating disc to rotate, so that the rotating gear rotates on the outer peripheral side of the linkage gear and contacts the locking gear. At this time, the locking gear and the rotating gear will be stuck with each other. Since both the rotating gear and the locking gear are meshed with the linkage gear, when the locking gear and the rotating gear are stuck with each other, the linkage gear, the locking gear and the rotating gear are in contact at the same time, and then the three gears balance each other, so as to fix the hub and the main shaft to each other, and then lock the wind turbine generator to prevent it from rotating.

[0015] 2. For the locking device of a wind turbine generator, since the positioning disc is fixedly connected to the main shaft, when the rotating disc rotates until the locking gear and the rotating gear are meshed, it takes at most one turn of the rotating disc, so that the locking gear and the rotating gear can quickly contact each other, effectively improving the efficiency of locking the hub of the wind turbine generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of a locking device of a wind turbine generator of the present utility model.

[0018] Figure 2 The utility model is a schematic structural diagram of a wheel hub of a locking device of a wind turbine generator set.

[0019] Figure 3 A schematic diagram of the structure of a driving mechanism of a locking device for a wind turbine generator set according to the utility model Figure 1 .

[0020] Figure 4 A schematic diagram of the structure of a driving mechanism of a locking device for a wind turbine generator set according to the utility model Figure 2 .

[0021] In the figure, 1, main shaft; 2, wheel hub; 21, fixing hole; 22, fan blade shaft; 23, speed sensor; 3, linkage gear; 4, rotating disk; 5, positioning disk; 6, rotating shaft; 7, rotating gear; 8, fixed shaft; 9, locking gear; 10, driving mechanism; 101, annular frame; 102, worm wheel; 103, rotating shaft frame; 104, driving worm; 105, mounting frame; 106, driving motor. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Example:

[0024] Reference Figures 1 - 4 The utility model discloses a locking device for a wind turbine generator set, comprising a main shaft 1, one end of the main shaft 1 is sleeved with a hub 2, one end of the hub 2 is fixedly connected with a linkage gear 3 rotatably connected to the main shaft 1, the outer surface of the main shaft 1 is sleeved with a rotating disk 4, one side of the rotating disk 4 is provided with a positioning disk 5 fixedly connected to the main shaft 1, the outer peripheral side of the rotating disk 4 is provided with a rotating shaft rod 6, the outer surface of the rotating shaft rod 6 is sleeved with a rotating gear 7, the outer peripheral side of the positioning disk 5 is provided with a fixed shaft rod 8, the outer surface of the fixed shaft rod 8 is provided with a locking gear 9, and one side of the rotating disk 4 is provided with a driving mechanism 10.

[0025] In this embodiment, when in use, the driving mechanism 10 drives the rotating disk 4 to rotate, so that the rotating gear 7 rotates on the outer peripheral side of the linkage gear 3 and contacts the locking gear 9. At this time, the locking gear 9 and the rotating gear 7 are locked with each other. Since the rotating gear 7 and the locking gear 9 are both meshed with the linkage gear 3, when the locking gear 9 and the rotating gear 7 are locked with each other, the linkage gear 3, the locking gear 9 and the rotating gear 7 are in contact with each other at the same time, and then the three gears balance each other, thereby achieving the purpose of fixing the hub 2 and the main shaft 1 to each other, and locking the wind turbine to prevent it from rotating;

[0026] Since the positioning disk 5 is fixedly connected to the main shaft 1, when the rotating disk 4 rotates until the locking gear 9 and the rotating gear 7 are engaged, it is necessary to rotate the rotating disk 4 by at most one circle, so that the locking gear 9 and the rotating gear 7 can quickly contact each other, effectively improving the efficiency of locking the hub 2 of the wind turbine generator.

[0027] In a further preferred embodiment of the present invention, as Figures 1 - 4 shown, fixing holes 21 are formed on the outer peripheral side of the hub 2, and a fan blade shaft rod 22 is arranged inside the fixing holes 21, and a rotation speed sensor 23 is arranged at the top of the hub 2.

[0028] In this embodiment, the fixing holes 21 are used to install the fan blades of the wind turbine generator, and the rotation speed sensor 23 is arranged to sense the rotation speed of the hub 2, so as to automatically control the driving mechanism 10 in strong wind weather, drive the rotating disk 4 to rotate, and make the locking gear 9 and the rotating gear 7 quickly contact each other, achieving the purpose of locking the hub 2.

[0029] In a further preferred embodiment of the present invention, as Figures 1 - 4 shown, the driving mechanism 10 includes an annular frame 101, the annular frame 101 is sleeved on the outer surface of the main shaft 1 and fixedly connected to the main shaft 1, a worm wheel disk 102 is rotatably installed on one side of the annular frame 101, a rotating shaft frame 103 is arranged on one side of the annular frame 101, a driving worm 104 is rotatably installed in the middle of the rotating shaft frame 103, and the driving worm 104 is engaged with the worm wheel disk 102.

[0030] In this embodiment, by rotating the driving worm 104, the worm wheel disk rotates, and the rotating disk 4 is driven to rotate through the arrangement of the worm wheel disk. Furthermore, the rotating gear 7 is driven to move through the arrangement of the rotating shaft rod 6, so that the rotating gear 7 contacts the locking gear 9, thereby achieving the effect of fixing the hub 2;

[0031] The annular frame 101 is arranged to install the worm wheel disk and limit the position of the worm wheel disk, so that the worm wheel disk is always engaged with the driving worm 104, effectively improving the stability of the rotation of the worm wheel disk.

[0032] In a further preferred embodiment of the present invention, as Figures 1 - 4 shown, the worm wheel disk 102 is sleeved on the outer peripheral side of the main shaft 1, and the worm wheel disk 102 is fixedly connected to the rotating disk 4.

[0033] In this embodiment, by sleeving the turbine disk on the outer peripheral side of the main shaft 1, the stability of the turbine disk during rotation is effectively improved. And through the setting of fixedly connecting the turbine disk with the rotating disk 4, when the driving worm 104 drives the turbine disk to rotate, it can drive the rotating disk 4 to rotate, thereby achieving the effect of controlling the positions of the rotating shaft rod 6 and the rotating gear 7.

[0034] In a further preferred embodiment of the present utility model, as Figures 1 - 4 shown, an installation frame 105 is provided on the bottom side of the annular frame 101. A driving motor 106 is provided at the upper end of the installation frame 105, and the motor shaft of the driving motor 106 is connected to the driving worm 104. The driving motor 106 is in signal connection with the rotational speed sensor 23.

[0035] In this embodiment, the rotational speed sensor 23 is provided to sense the external wind speed. When the external wind speed is relatively high, the driving motor 106 is controlled through an electrical signal, so that the driving mechanism 10 drives the rotating disk 4, and the rotating gear 7 and the locking gear 9 are in contact with each other to achieve the purpose of locking the hub 2. When the wind speed drops to the working range of the wind turbine, the driving motor 106 is controlled to drive the rotating disk 4 away from the locking mechanism, so that the rotating gear 7 and the locking gear 9 are no longer in contact with each other, thereby achieving the effect of unlocking the hub 2.

[0036] In a further preferred embodiment of the present utility model, as Figures 1 - 4 shown, both the locking gear 9 and the rotating gear 7 are meshed with the linkage gear 3, and the gear specifications of the locking gear 9 and the rotating gear 7 are equal.

[0037] In this embodiment, since the gear specifications of the rotating gear 7 and the locking gear 9 are equal, when the locking gear 9 and the rotating gear 7 are in contact with each other, they can effectively balance each other, achieving the purpose of facilitating the jamming of the locking gear 9 and the rotating gear 7.

[0038] The embodiments of this specific implementation manner are all preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A locking device for a wind turbine generator set, comprising a main shaft (1), characterized in that, One end of the main shaft (1) is sleeved with a hub (2). One end of the hub (2) is fixedly connected to a linkage gear (3) that is rotatably connected to the main shaft (1). The outer surface of the main shaft (1) is sleeved with a rotating disk (4). One side of the rotating disk (4) is provided with a positioning disk (5) fixedly connected to the main shaft (1). The outer peripheral side of the rotating disk (4) is provided with a rotating shaft rod (6). The outer surface of the rotating shaft rod (6) is sleeved with a rotating gear (7). The outer peripheral side of the positioning disk (5) is provided with a fixed shaft rod (8). The outer surface of the fixed shaft rod (8) is provided with a locking gear (9). One side of the rotating disk (4) is provided with a driving mechanism (10).

2. The locking device of a wind turbine according to claim 1, characterized in that, The outer peripheral side of the hub (2) is provided with a fixing hole (21), and a fan shaft rod (22) is arranged inside the fixing hole (21). The top end of the hub (2) is provided with a rotational speed sensor (23).

3. The locking device of a wind turbine according to claim 2, characterized in that, The driving mechanism (10) includes an annular frame (101). The annular frame (101) is sleeved on the outer surface of the main shaft (1) and is fixedly connected to the main shaft (1). One side of the annular frame (101) is rotatably installed with a worm wheel disk (102). One side of the annular frame (101) is provided with a rotating shaft frame (103). The middle of the rotating shaft frame (103) is rotatably installed with a driving worm (104). The driving worm (104) is engaged with the worm wheel disk (102).

4. The locking device of a wind turbine according to claim 3, characterized in that, The worm wheel disk (102) is sleeved on the outer peripheral side of the main shaft (1), and the worm wheel disk (102) is fixedly connected to the rotating disk (4).

5. The locking device of a wind turbine according to claim 4, characterized in that, The bottom side of the annular frame (101) is provided with a mounting frame (105). The upper end of the mounting frame (105) is provided with a driving motor (106), and the motor shaft of the driving motor (106) is connected to the driving worm (104). The driving motor (106) is in signal connection with the rotational speed sensor (23).

6. The locking device of a wind power generation set according to claim 5, wherein both the locking gear (9) and the rotating gear (7) are engaged with the linkage gear (3), and the gear specifications of the locking gear (9) and the rotating gear (7) are equal.

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