Vibration and noise reduction device for wind driven generator

Abstract

The utility model relates to the technical field of vibration and noise reduction devices for wind driven generators, in particular to a vibration and noise reduction device for a wind driven generator, which comprises a base, a support rod is fixedly connected to the top surface of the base, a shell is fixedly connected to the top of the support rod, and a connecting rod is slidably connected to the top of the shell. Compared with the prior art, the noise reduction generator has the advantages that the generator body is fixed in the noise reduction shell, the noise reduction shell can wrap the generator body, the good noise reduction effect can be achieved, vibration generated by the generator body can be further reduced through damping of the spring damper, the noise reduction effect can be better through the double noise reduction mode, and the noise reduction effect is better. The rolling rods are arranged between the side faces of the linkage plates and the inner wall of the shell, sliding friction between the linkage plates and the inner wall of the shell can be changed into sliding friction, noise caused by sliding friction can be prevented, abrasion between the linkage plates and the shell can be prevented, and the service life of the damping and noise reduction device can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration reduction and noise reduction devices for wind generators, in particular to a vibration reduction and noise reduction device for wind generators. Background Art

[0002] The principle of wind power generation is to use wind power to drive the blades to rotate, and then increase the rotation speed through a gearbox to enable the generator to generate electricity. Since wind energy is a clean, pollution-free, renewable energy source with huge reserves, the application of wind power generation is becoming more and more common.

[0003] For example, a vibration reduction and noise reduction device for a wind turbine with publication number CN220302260U, when the wind turbine runs at high speed and generates large vibrations, the vibration impact force is first transmitted to the linkage assembly, causing the linkage assembly to vibrate back and forth in a direction close to the base and a direction away from the base. However, since a first elastic assembly is provided between the linkage assembly and the base, the vibration impact force on the linkage assembly can be buffered by the elasticity of the first elastic assembly, thereby effectively reducing the vibration of the wind turbine and ensuring the stable operation of the wind turbine.

[0004] The vibration reduction and noise reduction device of the above-mentioned wind turbine still has the following deficiencies in actual use: the above-mentioned vibration reduction and noise reduction device includes a shell and a linkage plate arranged inside the shell, and a shock-absorbing assembly is arranged inside the linkage plate and the shell. Although it can achieve the effect of vibration reduction and noise reduction, the side of the linkage plate is slidingly connected to the inner wall of the shell. Long-term sliding connection not only easily causes wear of the linkage plate or the inside of the shell, which will reduce the life of the vibration reduction and noise reduction device, but also the sliding friction between the two will also generate noise. Therefore, a vibration reduction and noise reduction device for a wind turbine is needed to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0006] Therefore, one purpose of the present invention is to provide a vibration reduction and noise reduction device for a wind turbine generator, so as to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0007] In order to achieve the above-mentioned objectives, an embodiment of one aspect of the utility model provides a vibration and noise reduction device for a wind turbine generator, comprising a base, the top surface of the base is fixedly connected to a support rod, the top of the support rod is fixedly connected to a shell, the top of the shell is slidably connected to a connecting rod, the bottom of the connecting rod is fixedly connected to a linkage plate, a spring shock absorber is fixedly connected between the bottom surface of the linkage plate and the inner wall of the shell, the side of the linkage plate is rotatably connected to a rolling rod, the rolling rod is slidably connected to the shell, the top of the connecting rod is fixedly connected to a noise reduction shell via a flange, a generator body is arranged inside the noise reduction shell, the input end of the generator body is rotatably connected to a wind wheel, one side of the noise reduction shell is threadedly connected to a threaded column, one end of the threaded column is rotatably connected to a locking plate via a bearing, the outer surface of the generator body is fixedly connected to a locking frame, and the locking plate is slidably connected to the locking frame.

[0008] Preferably, any of the above schemes is that a positioning pin is fixedly connected to the inner wall of the noise reduction housing, a positioning hole is opened on the side of the generator body, and the positioning pin is snap-connected with the generator body through the positioning hole.

[0009] Preferably, any of the above schemes is that a sliding frame is fixedly connected to the outer surface of the generator body, a sliding plate is fixedly connected to the inner wall of the noise reduction shell, and the sliding plate is slidably connected to the sliding frame.

[0010] Preferably, any of the above schemes is that two guide rods are fixedly connected to one side of the locking plate, the two guide rods are symmetrically distributed on both sides of the threaded column, and the guide rods are slidably connected to the noise reduction housing.

[0011] Preferably, any of the above schemes is that the linkage plate and the spring damper are both located inside the housing, and the axis of the spring damper coincides with the axis of the connecting rod.

[0012] Preferably, any of the above solutions is that rolling rods are arranged on the four side surfaces of the linkage plate, and the outer surface of the rolling rod is tangent to the inner wall of the shell.

[0013] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0014] When the wind turbine needs to be used, the generator body can be inserted into the noise reduction shell along the sliding frame. The sliding cooperation between the sliding frame and the sliding plate can not only facilitate the assembly of the generator body into the noise reduction shell, but also make the connection between the generator body and the noise reduction shell more stable, until the locating pin moves into the locating hole and then the threaded column is rotated, and the locking plate can be driven to move into the locking frame through threaded transmission. The generator body can be fixed in the noise reduction shell through the snap-fit ​​cooperation between the locking plate and the locking frame. The generator body can be covered by the noise reduction shell, which can achieve the effect of noise reduction. In addition, the vibration generated by the generator body can be further reduced through the shock absorption of the spring shock absorber, which can further achieve the effect of noise reduction. The noise reduction effect can be better achieved through the double noise reduction method. In addition, a rolling rod is provided between the side of the linkage plate and the inner wall of the shell, and the sliding friction between the two can be converted into sliding friction, which can prevent noise caused by sliding friction and prevent wear between the two, thereby improving the service life of the shock absorption and noise reduction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the assembly of the utility model from the first perspective;

[0016] Figure 2 It is a schematic diagram of the structure of the assembly of the utility model from a second viewing angle;

[0017] Figure 3 It is a structural schematic diagram of the main body of the generator of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the noise reduction housing of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the shell of the utility model.

[0020] In the figure: 1-base, 2-support rod, 3-shell, 4-connecting rod, 5-linking plate, 6-spring shock absorber, 7-rolling rod, 8-noise reduction housing, 9-generator body, 10-wind wheel, 11-threaded column, 12-locking plate, 13-locking frame, 14-locating pin, 15-locating hole, 16-sliding frame, 17-sliding plate, 18-guide rod. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited to the following.

[0022] like Figures 1 to 5As shown, a vibration reduction and noise reduction device for a wind turbine generator comprises a base 1, a support rod 2 is fixedly connected to the top surface of the base 1, a shell 3 is fixedly connected to the top of the support rod 2, a connecting rod 4 is slidably connected to the top of the shell 3, a linkage plate 5 is fixedly connected to the bottom of the connecting rod 4, a spring shock absorber 6 is fixedly connected between the bottom surface of the linkage plate 5 and the inner wall of the shell 3, a rolling rod 7 is rotatably connected to the side of the linkage plate 5, the rolling rod 7 is slidably connected to the shell 3, a noise reduction shell 8 is fixedly connected to the top of the connecting rod 4 through a flange, a generator body 9 is arranged inside the noise reduction shell 8, a wind wheel 10 is rotatably connected to the input end of the generator body 9, a threaded column 11 is threadedly connected to one side of the noise reduction shell 8, one end of the threaded column 11 is rotatably connected to a locking plate 12 through a bearing, a locking frame 13 is fixedly connected to the outer surface of the generator body 9, and the locking plate 12 is slidably connected to the locking frame 13.

[0023] As an optional technical solution of the present utility model, a positioning pin 14 is fixedly connected to the inner wall of the noise reduction shell 8, and a positioning hole 15 is opened on the side of the generator body 9. The positioning pin 14 is snapped into the generator body 9 through the positioning hole 15, which can make the connection between the generator body 9 and the noise reduction shell 8 more stable.

[0024] As an optional technical solution of the present invention, the outer surface of the generator body 9 is fixedly connected with a sliding frame 16, and the inner wall of the noise reduction shell 8 is fixedly connected with a slide plate 17. The slide plate 17 is slidably connected to the sliding frame 16. The sliding cooperation between the sliding frame 16 and the slide plate 17 can not only facilitate the assembly of the generator body 9 into the noise reduction shell 8, but also make the connection between the generator body 9 and the noise reduction shell 8 more stable.

[0025] As an optional technical solution of the present invention, two guide rods 18 are fixedly connected to one side of the locking plate 12, and the two guide rods 18 are symmetrically distributed on both sides of the threaded column 11. The guide rods 18 are slidably connected to the noise reduction shell 8. When the locking plate 12 moves, it can drive the guide rods 18 to be slidably connected relative to the noise reduction shell 8, so as to limit the locking plate 12.

[0026] As an optional technical solution of the present invention, the linkage plate 5 and the spring shock absorber 6 are both located inside the shell 3, and the spring shock absorber 6 coincides with the axis of the connecting rod 4. Through the shock absorption of the spring shock absorber 6, the vibration generated by the generator body 9 can be further reduced, which can further achieve the effect of noise reduction.

[0027] As an optional technical solution of the present invention, rolling rods 7 are arranged on the four sides of the linkage plate 5. The outer surface of the rolling rod 7 is tangent to the inner wall of the shell 3. The setting of the rolling rod 7 can convert the sliding friction between the two into sliding friction, thereby preventing noise caused by sliding friction.

[0028] A vibration reduction and noise reduction device for a wind turbine generator, the working principle is as follows:

[0029] 1): When the wind turbine generator needs to be used, the generator body 9 can be inserted into the noise reduction housing 8 along the slide frame 16 until the positioning pin 14 moves into the positioning hole 15 and then the threaded column 11 is rotated.

[0030] 2): The locking plate 12 can be driven to move into the locking frame 13 through threaded transmission, and the generator body 9 can be fixed inside the noise reduction housing 8 through the snap-fitting between the locking plate 12 and the locking frame 13 .

[0031] In summary, the vibration reduction and noise reduction device for wind turbines can be used to insert the generator body 9 into the noise reduction housing 8 along the slide frame 16 when the wind turbine needs to be used. The sliding cooperation between the slide frame 16 and the slide plate 17 can not only facilitate the assembly of the generator body 9 into the noise reduction housing 8, but also make the connection between the generator body 9 and the noise reduction housing 8 more stable, until the positioning pin 14 moves into the positioning hole 15 and then the threaded column 11 is rotated, and the locking plate 12 can be driven to move into the locking frame 13 through thread transmission, and the locking plate 12 can be engaged with the locking frame 13 through the snap-fit ​​cooperation. The generator body 9 is fixed inside the noise reduction shell 8, and the generator body 9 can be covered by the noise reduction shell 8, which can achieve the effect of noise reduction. The shock absorption of the spring shock absorber 6 can further reduce the vibration generated by the generator body 9, which can further achieve the effect of noise reduction. The double noise reduction method can make the noise reduction effect better, and a rolling rod 7 is provided between the side of the linkage plate 5 and the inner wall of the shell 3, which can convert the sliding friction between the two into sliding friction, thereby preventing noise caused by sliding friction, and preventing wear between the two, thereby increasing the life of the shock-absorbing and noise-reducing device.

Claims

1. A vibration reduction and noise reduction device for a wind turbine, characterized in that: The invention comprises a base (1), wherein the top surface of the base (1) is fixedly connected to a support rod (2), the top of the support rod (2) is fixedly connected to a shell (3), the top of the shell (3) is slidably connected to a connecting rod (4), the bottom of the connecting rod (4) is fixedly connected to a linkage plate (5), a spring shock absorber (6) is fixedly connected between the bottom surface of the linkage plate (5) and the inner wall of the shell (3), a rolling rod (7) is rotatably connected to the side of the linkage plate (5), the rolling rod (7) is slidably connected to the shell (3), and the connecting rod (4) is fixedly connected to a linkage plate (5). The top of the rod (4) is fixedly connected to a noise reduction housing (8) via a flange, a generator body (9) is arranged inside the noise reduction housing (8), an input end of the generator body (9) is rotatably connected to a wind wheel (10), one side of the noise reduction housing (8) is threadedly connected to a threaded column (11), one end of the threaded column (11) is rotatably connected to a locking plate (12) via a bearing, an outer surface of the generator body (9) is fixedly connected to a locking frame (13), and the locking plate (12) is slidably connected to the locking frame (13).

2. A vibration reduction and noise reduction device for a wind turbine according to claim 1, characterized in that: A positioning pin (14) is fixedly connected to the inner wall of the noise reduction housing (8), a positioning hole (15) is provided on the side of the generator body (9), and the positioning pin (14) is snap-fitted to the generator body (9) through the positioning hole (15).

3. A vibration reduction and noise reduction device for a wind turbine according to claim 2, characterized in that: The outer surface of the generator body (9) is fixedly connected to a sliding frame (16), the inner wall of the noise reduction housing (8) is fixedly connected to a sliding plate (17), and the sliding plate (17) is slidably connected to the sliding frame (16).

4. A vibration reduction and noise reduction device for a wind turbine according to claim 3, characterized in that: Two guide rods (18) are fixedly connected to one side of the locking plate (12), the two guide rods (18) are symmetrically distributed on both sides of the threaded column (11), and the guide rods (18) are slidably connected to the noise reduction housing (8).

5. A vibration reduction and noise reduction device for a wind turbine according to claim 4, characterized in that: The linkage plate (5) and the spring shock absorber (6) are both located inside the housing (3), and the axis of the spring shock absorber (6) coincides with the axis of the connecting rod (4).

6. A vibration reduction and noise reduction device for a wind turbine according to claim 5, characterized in that: Rolling rods (7) are provided on the four side surfaces of the linkage plate (5), and the outer surface of the rolling rod (7) is tangent to the inner wall of the housing (3).

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