Protective device for wind turbine generator and wind turbine generator

Abstract

The invention discloses a protective device for a wind turbine and a wind turbine, comprising a filter plate; the filter plate is arranged on the outer side of the generator, the filter plate is in an open box structure, the openings of the two filter plates are arranged opposite to each other, and the filter plates on the upper and lower sides are formed to enclose the generator; a handle is arranged on the outer wall of the upper filter plate, a fixed shaft is arranged on the handle, a blind hole is arranged on the upper filter plate, the fixed shaft extends into the blind hole of the upper filter plate, a stopper is arranged at the bottom of the blind hole, a movable shaft is arranged on the fixed shaft, a spring is arranged on the outer circumference of the movable shaft, one end of the spring is fixedly connected to the stopper, and the other end of the spring is fixedly connected to the fixed shaft, a slot is arranged on the bottom surface of the blind hole, and the movable shaft passes through the stopper and is plugged into the slot; a sub-buckle is arranged on the fixed shaft, the sub-buckle extends out of the outer wall of the upper filter plate, a female buckle is arranged on the inner wall of the lower filter plate, and the female buckle is fixed to the sub-buckle; the lower filter plate is fixed on a placement plate where the generator is arranged.

Description

Technical Field

[0001] The invention belongs to the field of wind turbines, and in particular to a protective device for a wind turbine and a wind turbine. Background Art

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and ultimately outputs alternating current. A wind turbine generally consists of a wind rotor, a generator (including a device), a direction regulator (tail wing), a tower, a speed limit safety mechanism, and an energy storage device. The working principle of a wind turbine is relatively simple. The wind rotor rotates under the action of wind, and it converts the kinetic energy of the wind into the mechanical energy of the wind rotor shaft. The generator rotates and generates electricity driven by the wind rotor shaft. Broadly speaking, wind energy is also solar energy, so it can also be said that a wind turbine is a heat energy generator that uses the sun as a heat source and the atmosphere as a working medium.

[0003] However, the existing wind turbines are exposed to wind and rain for a long time and are prone to damage, which shortens the service life of the wind turbines. At the same time, the wind turbines have poor protection performance, which easily leads to external dust entering the generator, affecting the heat dissipation and ventilation effect of the filter. Therefore, the filter needs to be cleaned regularly, and the existing filter is inconvenient to remove during cleaning, which increases the labor intensity of the operators and even brings danger to the operators. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a protective device for a wind turbine and a wind turbine, which solves the problem that the filter screen of the existing wind turbine protective device and wind turbine is inconvenient to remove when cleaning, which increases the labor intensity of the operators.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A protective device for a wind turbine generator, comprising a filter plate, a stopper, a spring, a movable shaft, a handle and a fixed shaft;

[0007] The filter plate is arranged on the outside of the generator, and the filter plate is in an open box structure. The openings of the two filter plates are arranged opposite to each other, forming filter plates on the upper and lower sides to enclose the generator;

[0008] A handle is provided on the outer wall of the upper filter plate, a fixed shaft is provided on the handle, a blind hole is provided on the upper filter plate, the fixed shaft extends into the blind hole of the upper filter plate, a stopper is provided at the bottom of the blind hole, a movable shaft is provided on the fixed shaft, a spring is provided on the outer circumference of the movable shaft, one end of the spring is fixedly connected to the stopper, and the other end of the spring is fixedly connected to the fixed shaft, a slot is provided on the bottom surface of the blind hole, and the movable shaft passes through the stopper to be plugged into the slot;

[0009] The fixed shaft is provided with a sub-buckle, which extends out of the outer wall of the upper filter plate. The inner wall of the lower filter plate is provided with a female buckle, and the female buckle and the sub-buckle are clamped and fixed; the lower filter plate is fixed on a placement plate where a generator is set.

[0010] Preferably, an isolation plate is provided between the filter plate and the generator, the isolation plate is in a box structure, and the generator is arranged inside the isolation plate.

[0011] Preferably, an anti-corrosion layer is provided on the inner wall of the isolation plate.

[0012] Furthermore, the anti-corrosion layer is an asphalt paint coating.

[0013] Preferably, it further comprises a fixing plate, one end of which is fixedly arranged on the isolation plate, and the fixing plate is fixedly arranged on both sides of the generator in the circumferential direction.

[0014] Preferably, the fixed axes are symmetrically distributed with respect to the central axis of the handle.

[0015] A wind turbine generator comprises a base, a tower, blades, a nacelle, a generator rotor, a generator, a nacelle head, a placement plate and a connecting shaft;

[0016] A tower is arranged on the base, a cabin is arranged on the upper end of the tower, a cabin head is arranged at one end of the cabin, a placement plate is arranged inside the cabin, a generator is arranged on the placement plate, a connecting shaft is arranged on the power output end of the generator, a generator rotor is arranged circumferentially on the side wall of one end of the connecting shaft, and a blade is arranged circumferentially on the side wall of the other end of the connecting shaft, and the blade passes through the cabin head;

[0017] A protective device for a wind turbine generator as described in any one of the above items is arranged on the outer side of the generator.

[0018] Preferably, the placement plate is fixed to the inner wall of the cabin by screws.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] The present invention provides a protective device for a wind turbine generator, which protects the generator by setting a filter plate of an open box structure, and the filter plates on the upper and lower sides protect the generator, and by setting a handle, a fixed shaft, a spring, a movable shaft, a stopper and a slot on the filter plate, when the filter plate outside the generator needs to be removed for cleaning, the fixed shaft is moved by pressing the handle to drive the sub-buckle to move, so that the sub-buckle is separated from the mother buckle, and the spring is compressed to move the movable shaft and enter the slot, and then the handle is lifted upward to make the stopper, the movable shaft and the fixed shaft all move upward, so that the filter plates on the upper and lower sides are separated, and the filter plates can be removed, which is convenient for cleaning and improves work efficiency. It is avoided that the disassembly process causes damage to the operator and reduces labor intensity.

[0021] Furthermore, by providing an anti-corrosion layer and an isolation plate, the motor can be protected, thereby preventing the generator from being exposed to wind and rain for a long time and being easily damaged, thereby increasing the service life of the wind turbine.

[0022] The present invention provides a wind turbine generator, which protects the generator by arranging a filter plate that is easy to disassemble, thereby preventing impurities from accumulating on the generator and affecting the heat dissipation and service life of the generator. The overall structure is simple, and the wind turbine generator can be easily installed and disassembled as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a schematic diagram of the connection structure of the filter plate of the present invention.

[0025] Figure 3 For the present invention Figure 1 A is an enlarged view of the structure.

[0026] Figure 4 For the present invention Figure 3 A magnified view of the structure of B.

[0027] Figure 5 It is a schematic diagram of the structure of the filter plate of the present invention.

[0028] In the accompanying drawings: 1 is a base; 2 is a tower; 3 is a blade; 4 is a cabin; 5 is a generator rotor; 6 is a filter plate; 7 is an anti-corrosion layer; 8 is a screw; 9 is a generator; 10 is a stopper; 11 is a spring; 12 is a movable shaft; 13 is a sub-buckle; 14 is a female buckle; 15 is a cabin head; 16 is a fixed plate; 17 is a handle; 18 is a fixed shaft; 19 is a slot; 20 is an isolation plate; 21 is a placement plate. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0030] The present invention provides a protective device for a wind turbine generator, comprising a filter plate 6, a block 10, a spring 11, a movable shaft 12, a fixed plate 16, a handle 17 and a fixed shaft 18; the filter plate 6 is arranged on the outside of the generator 9, and the filter plate 6 is an open box structure. The openings of the two filter plates 6 are arranged opposite to each other, forming filter plates 6 on upper and lower sides to enclose the generator 9.

[0031] A handle 17 is provided on the outer wall of the upper filter plate 6, and a fixed shaft 18 is provided on the handle 17. A blind hole is provided on the upper filter plate 6, and the fixed shaft 18 extends into the blind hole of the upper filter plate 6. A stopper 10 is provided at the bottom of the blind hole. A movable shaft 12 is provided on the fixed shaft 18, and a spring 11 is provided on the outer circumference of the movable shaft 12. One end of the spring 11 is fixedly connected to the stopper 10, and the other end of the spring 11 is fixedly connected to the fixed shaft 18. A slot 19 is provided on the bottom surface of the blind hole, and the movable shaft 12 passes through the stopper 10 and is plugged into the slot 19.

[0032] The fixing shaft 18 is provided with a sub-buckle 13, which extends out of the outer wall of the upper filter plate 6, and the inner wall of the lower filter plate 6 is provided with a female buckle 14, which is fixed by snapping with the sub-buckle 13; the lower filter plate 6 is fixed on the placement plate 21 on which the generator 9 is set. The lower filter plate 6 and the placement plate 21 are detachably connected, so that the lower filter plate 6 and the placement plate 21 can be easily disassembled.

[0033] An isolation plate 20 is arranged between the filter plate 6 and the generator 9. The isolation plate 20 is a box structure, and the generator 9 is arranged inside the isolation plate 20. An anti-corrosion layer 7 is arranged on the inner wall of the isolation plate 20, and the anti-corrosion layer 7 is an asphalt paint coating.

[0034] One end of the fixing plate 16 is fixedly arranged on the isolation plate 20, and the fixing plate 16 is fixedly arranged on both sides of the circumference of the generator 9. The fixing shafts 18 are symmetrically distributed with respect to the central axis of the handle 17.

[0035] When the generator 9 needs to be removed for cleaning, the handle 17 is pressed to move the fixed shaft 18, driving the sub-buckle 13 to move, thereby separating the sub-buckle 13 from the mother buckle 14, compressing the spring 11 to move the movable shaft 12 and enter the slot 19, and then the handle 17 is lifted upward to move the block 10, the movable shaft 12 and the fixed shaft 18 upward, thereby separating the filter plates 6 on the upper and lower sides, and the filter plates 6 can be removed. An anti-corrosion layer 7 and an isolation plate 20 are arranged inside to protect the generator 9, thereby preventing the generator 9 from being exposed to wind and rain for a long time, which is easy to be damaged and shortens the service life of the generator 9. At the same time, the filter plate 6 can be easily removed for easy cleaning, thereby improving work efficiency.

[0036] like Figures 1 to 5As shown, a wind turbine of the present invention comprises a base 1, a tower 2 is fixedly mounted on the top of the base 1, and a cabin 4 is fixedly mounted on the top of the tower 2, a cabin head 15 is fixedly mounted on one end of the cabin 4, a placement plate 21 is mounted inside the cabin 4, an isolation plate 20 is arranged on the top of the placement plate 21, and an anti-corrosion layer 7 is arranged on the inner wall of the isolation plate 20, a generator 9 is arranged inside the anti-corrosion layer 7, a connecting shaft 22 is arranged at one end of the generator 9, and the connecting shaft 22 passes through the isolation plate 20 and extends to the inside of the cabin 4, a generator rotor 5 is arranged on the circumferential side wall of the connecting shaft 22, and blades 3 are arranged on the circumferential side wall of the connecting shaft 22, and the blades 3 are symmetrically distributed with respect to the central axis of the connecting shaft 22, a filter plate 6 is arranged on the outer wall of the isolation plate 20, and a handle 17 is arranged on the outer wall of the filter plate 6, and one end of the handle 17 is fixedly mounted with A fixed shaft 18 is symmetrically distributed with the central axis of the handle 17, a sub-buckle 13 is fixedly installed on one end of the fixed shaft 18, a movable shaft 12 is fixedly installed on one end of the sub-buckle 13, and a stopper 10 is fixedly installed on one end of the movable shaft 12, a screw 8 is provided at the top of the placement plate 21, and the screw 8 passes through the placement plate 21 and extends to the interior of the cabin 4, and the screw 8 is symmetrically distributed with the central axis of the placement plate 21, a fixed plate 16 is fixedly installed on the circumferential side wall of the generator 9, and the fixed plate 16 is fixedly connected to the isolation plate 20, a female buckle 14 is fixedly installed on the inner wall of the filter plate 6, the female buckle 14 is symmetrically distributed with the central axis of the filter plate 6, and the female buckle 14 matches the sub-buckle 13, a spring 11 is installed on the circumferential side wall of the movable shaft 12, and a card slot 19 is provided on the inner wall of the filter plate 6, and the card slot 19 matches the movable shaft 12.

[0037] The working process of a protective device for a wind turbine generator of the present invention includes: when the device is in use, the device is first installed through the base 1 and the tower 2, and then the blades 3 are rotated to generate electricity. The blades 3 rotate under the action of wind force, and it converts the kinetic energy of the wind into mechanical energy. The generator 9 rotates and generates electricity under the drive of the wind rotor shaft. When the generator 9 needs to be removed for cleaning, the handle 17 is pressed to move the fixed shaft 18, drive the sub-buckle 13 to move, so that the sub-buckle 13 is separated from the mother buckle 14, and the spring 11 is compressed to move the movable shaft 12 to enter The filter plate 6 is then removed by pulling the filter plate 6 out of the slot 19 and then lifting the handle 17 upwards, so that the block 10, the movable shaft 12 and the fixed shaft 18 are all moved upwards, thereby separating the filter plates 6 on the upper and lower sides. The filter plate 6 can be removed, and an anti-corrosion layer 7 and an isolation plate 20 are arranged inside to protect the generator 9. The anti-corrosion layer 7, the isolation plate 20 and the inner wall of the filter plate 6 fit each other, preventing the generator 9 from being exposed to wind and rain for a long time, which is easy to be damaged and shortens the service life of the generator 9. At the same time, the filter plate 6 can be easily removed for easy cleaning, thereby improving work efficiency.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A protective device for a wind turbine, characterized in that: It comprises a filter plate (6), a stopper (10), a spring (11), a movable shaft (12), a handle (17) and a fixed shaft (18); The filter plate (6) is arranged outside the generator (9), and the filter plate (6) is in an open box structure. The openings of the two filter plates (6) are arranged opposite to each other, so that the filter plates (6) on the upper and lower sides enclose the generator (9); A handle (17) is provided on the outer wall of the upper filter plate (6), a fixed shaft (18) is provided on the handle (17), a blind hole is provided on the upper filter plate (6), the fixed shaft (18) extends into the blind hole of the upper filter plate (6), a stopper (10) is provided at the bottom of the blind hole, a movable shaft (12) is provided on the fixed shaft (18), a spring (11) is provided on the outer circumference of the movable shaft (12), one end of the spring (11) is fixedly connected to the stopper (10), and the other end of the spring (11) is fixedly connected to the fixed shaft (18), a slot (19) is provided on the bottom surface of the blind hole, and the movable shaft (12) passes through the stopper (10) and is plugged into the slot (19); The fixed shaft (18) is provided with a sub-buckle (13), the sub-buckle (13) extends out of the outer wall of the upper filter plate (6), the inner wall of the lower filter plate (6) is provided with a female buckle (14), the female buckle (14) and the sub-buckle (13) are engaged and fixed; the lower filter plate (6) is fixed on a placement plate (21) on which a generator (9) is provided; An isolation plate (20) is arranged between the filter plate (6) and the generator (9), the isolation plate (20) is in a box structure, and the generator (9) is arranged inside the isolation plate (20); It also comprises a fixing plate (16), one end of which is fixedly arranged on the isolation plate (20), and the fixing plate (16) is fixedly arranged on both sides of the generator (9) in the circumferential direction.

2. A protective device for a wind turbine generator according to claim 1, characterized in that: An anti-corrosion layer (7) is provided on the inner wall of the isolation plate (20).

3. A protective device for a wind turbine generator according to claim 2, characterized in that: The anti-corrosion layer (7) is an asphalt paint coating.

4. A protective device for a wind turbine generator according to claim 1, characterized in that: The fixed shafts (18) are symmetrically distributed with respect to the central axis of the handle (17).

5. A wind turbine, characterized in that: It comprises a base (1), a tower (2), blades (3), a nacelle (4), a generator rotor (5), a generator (9), a nacelle head (15), a placement plate (21) and a connecting shaft (22); A tower (2) is arranged on the base (1), a cabin (4) is arranged at the upper end of the tower (2), a cabin head (15) is arranged at one end of the cabin (4), a placement plate (21) is arranged inside the cabin (4), a generator (9) is arranged on the placement plate (21), a connecting shaft (22) is arranged on the power output end of the generator (9), a generator rotor (5) is circumferentially arranged on a side wall at one end of the connecting shaft (22), and a blade (3) is circumferentially arranged on a side wall at the other end of the connecting shaft (22), and the blade (3) passes through the cabin head (15); A protective device for a wind turbine generator according to any one of claims 1 to 4 is arranged on the outer side of the generator (9).

6. A wind turbine according to claim 5, characterized in that: The placement plate (21) is fixed to the inner wall of the cabin (4) by means of screws (8).

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