Wind power plant fan blade monitoring device

Abstract

The utility model belongs to the technical field of wind power plants, and particularly relates to a wind power plant fan blade monitoring device which is characterized in that a rotating disc is rotatably connected with a fixed disc, the fixed disc is rotatably connected with three groups of transition cylinders, sliding grooves are formed in the three groups of transition cylinders, sliding plates are slidably connected in the sliding grooves, and paddle fixing shafts are arranged on the sliding plates; a blade body is arranged at one end of the blade fixing shaft, a reset spring is arranged between the sliding plate and the inner side wall of the sliding groove, and a gravity sensor matched with the sliding plate is arranged in the sliding groove; a contact switch is arranged on the fixed disc, a contact block matched with the contact switch is arranged on the rotating disc, and the contact block and the paddle body are located on the same horizontal line; a controller is arranged in the fixing disc, and the gravity sensor and the contact switch are electrically connected with the controller.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind farms, and in particular relates to a wind farm fan blade monitoring device. Background Art

[0002] The wind power source consists of a wind turbine generator set, a tower supporting the generator set, a battery charge controller, an inverter, a load unloader, a grid-connected controller and a battery pack. The wind turbine generator set includes a wind wheel and a generator. The wind wheel contains blades, a hub and reinforcements. It has the functions of generating electricity by rotating the blades under wind power and rotating the generator head.

[0003] At present, ice easily forms on the outside of wind turbine blades, causing changes in the aerodynamic performance of wind turbine blades, leading to blade overload and uneven load distribution, and the blade icing situation cannot be fed back and processed in a timely manner;

[0004] Therefore, the utility model designs a wind farm wind turbine blade monitoring device to solve the technical problems existing in the prior art. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a wind farm wind turbine blade monitoring device to solve the above-mentioned technical problems.

[0006] The solution adopted by the utility model is: a wind farm wind turbine blade monitoring device, including a fixed disk and a rotating disk, characterized in that:

[0007] The rotating disk is rotatably connected to a fixed disk, and the fixed disk is rotatably connected to three groups of transition tubes, and the three groups of transition tubes are provided with sliding grooves, and the sliding grooves are slidably connected with sliding plates, and the sliding plates are provided with blade fixing shafts, and one end of the blade fixing shaft is provided with a blade body, and a return spring is provided between the sliding plate and the inner side wall of the sliding groove, and a gravity sensor cooperating with the sliding plate is provided in the sliding groove;

[0008] The fixed disk is provided with a contact switch, the rotating disk is provided with a contact block matched with the contact switch, and the contact block and the blade body are located on the same horizontal line;

[0009] A controller is arranged inside the fixed plate, and the gravity sensor and the contact switch are electrically connected to the controller.

[0010] Preferably, the contact block is spherically hinged with a spherical body that cooperates with the contact switch.

[0011] Preferably, a damping rod is provided between the sliding groove and the sliding plate.

[0012] Preferably, a heating plate and a temperature sensor are provided in the blade body, and the heating plate and the temperature sensor are electrically connected to the controller.

[0013] Preferably, the fixing plate is in a polygonal shape, and the three groups of blade bodies are evenly distributed on the fixing plate.

[0014] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is one of the three-dimensional view angles of the present utility model.

[0016] Figure 2 It is one of the perspectives of the stereoscopic cross-sectional view of the present utility model.

[0017] Figure 3 yes Figure 2 A partial enlarged view of .

[0018] Figure 4 This is the second perspective of the stereoscopic cross-sectional view of the present invention.

[0019] Figure 5 yes Figure 4 A partial enlarged view of B.

[0020] Figure numerals: 1. fixed plate; 2. rotating plate; 3. transition cylinder; 4. sliding groove; 5. sliding plate; 6. blade fixing shaft; 7. blade body; 8. return spring; 9. gravity sensor; 10. contact switch; 11. contact block; 12. sphere. DETAILED DESCRIPTION

[0021] The above and other technical contents, features and functions of the present invention are described in detail below with reference to the attached Figure 1-5 The detailed description of the embodiments will clearly show that the structural contents mentioned in the following embodiments are all based on the drawings in the specification.

[0022] Various exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0023] Embodiment 1, a wind farm wind turbine blade monitoring device, comprising a fixed disk 1 and a rotating disk 2, characterized in that:

[0024] The rotating disk 2 is rotatably connected with a fixed disk 1, and the fixed disk 1 is rotatably connected with three groups of transition tubes 3, and the three groups of transition tubes 3 are provided with sliding grooves 4, and the sliding grooves 4 are slidably connected with sliding plates 5, and the sliding plates 5 are provided with blade fixing shafts 6, and one end of the blade fixing shaft 6 is provided with a blade body 7, and a return spring 8 is provided between the sliding plate 5 and the inner side wall of the sliding groove 4, and a gravity sensor 9 cooperating with the sliding plate 5 is provided in the sliding groove 4;

[0025] The fixed disk 1 is provided with a contact switch 10, and the rotating disk 2 is provided with a contact block 11 that cooperates with the contact switch 10, and the contact block 11 and the blade body 7 are located on the same horizontal line;

[0026] The fixed plate 1 is provided with a controller inside, and the gravity sensor 9 and the contact switch 10 are both electrically connected to the controller;

[0027] The contact block 11 is spherically hinged with a sphere 12 that matches the contact switch 10;

[0028] A damping rod is provided between the sliding groove 4 and the sliding plate 5;

[0029] The blade body 7 is provided with a heating plate and a temperature sensor, and the heating plate and the temperature sensor are electrically connected to the controller;

[0030] The fixing plate 1 is in a polygonal shape, and the three groups of blade bodies 7 are evenly distributed on the fixing plate 1 .

[0031] The rotating disk 2 is installed on the power assembly of the wind power generation equipment, and the rotating disk 2 can be driven to drive the blade body 7 to rotate. When the blade body 7 rotates, the ball 12 provided on the contact block 11 contacts the contact switch 10, which proves that the contact block 11 and the blade body 7 are located on the same horizontal line, and data is recorded;

[0032] When the contact block 11 and the blade body 7 are on the same horizontal line, the blade body 7 is in a vertical state with the ground, and the blade body 7 moves downward under the action of gravity, overcoming the elastic force of the return spring 8, and cooperates with the gravity sensor 9 to obtain the weight of the blade body 7 when the contact block 11 and the blade body 7 are on the same horizontal line through the controller;

[0033] If ice appears on the blade body 7 and the contact block 11 is on the same horizontal line with the blade body 7, the weight of the blade body 7 will increase, and the controller will detect the abnormal weight and turn on the heating plate on the blade body 7. When the controller detects that the weight of the blade body 7 returns to normal, the heating plate is turned off. In summary, the controller can realize the function of real-time monitoring to avoid malfunctions due to ice on the blade body 7 when generating electricity in the wind.

[0034] The above description is only for illustrating the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the protection scope of the present invention.

Claims

1. A wind turbine blade monitoring device for a wind farm, comprising a fixed disk (1) and a rotating disk (2), characterized in that: The rotating disk (2) is rotatably connected to a fixed disk (1), the fixed disk (1) is rotatably connected to three groups of transition tubes (3), the three groups of transition tubes (3) are provided with sliding grooves (4), the sliding grooves (4) are slidably connected to sliding plates (5), the sliding plates (5) are provided with blade fixing shafts (6), one end of the blade fixing shaft (6) is provided with a blade body (7), a return spring (8) is provided between the sliding plate (5) and the inner side wall of the sliding groove (4), and a gravity sensor (9) cooperating with the sliding plate (5) is provided in the sliding groove (4); The fixed disk (1) is provided with a contact switch (10), and the rotating disk (2) is provided with a contact block (11) that cooperates with the contact switch (10), and the contact block (11) and the blade body (7) are located on the same horizontal line; A controller is provided inside the fixed disk (1), and the gravity sensor (9) and the contact switch (10) are both electrically connected to the controller.

2. A wind farm wind turbine blade monitoring device according to claim 1, characterized in that: The contact block (11) is spherically hinged with a spherical body (12) that cooperates with the contact switch (10).

3. A wind farm wind turbine blade monitoring device according to claim 2, characterized in that: A damping rod is provided between the sliding groove (4) and the sliding plate (5).

4. A wind farm wind turbine blade monitoring device according to claim 3, characterized in that: A heating plate and a temperature sensor are provided inside the blade body (7), and the heating plate and the temperature sensor are electrically connected to the controller.

5. A wind farm wind turbine blade monitoring device according to claim 4, characterized in that: The fixing plate (1) is in a polygonal configuration, and the three groups of blade bodies (7) are evenly distributed on the fixing plate (1).

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