Noise reduction type wind driven generator end cover

Abstract

The utility model relates to the technical field of wind driven generators, and discloses a noise reduction type wind driven generator end cover which comprises an end cover body, a partition plate is connected to the inner side wall of the end cover body, a plurality of sound absorption holes are formed in the bottom end of the end cover body and the partition plate, and a rotating shaft is rotationally connected to the inner bottom end of the end cover body. The upper end of the rotating shaft penetrates through the side wall of the partition plate and extends upwards, a plurality of rotating rods are evenly arranged at the lower end of the partition plate at equal intervals, the lower ends of the rotating rods are connected with baffles, the baffles are located at the positions of the corresponding sound absorption holes, the shaft wall of the rotating shaft is fixedly sleeved with a driving gear, and the rod wall of each rotating rod is fixedly sleeved with a driven gear. According to the technical scheme, the end cover body, the partition plate, the sound absorption holes, the rotating shaft, the rotating rod, a baffle, a driving gear, a driven gear, sound absorption cotton, a moving plate and other structures are arranged and matched with one another, the noise reduction effect can be achieved, meanwhile, dust can be prevented from entering the equipment when the equipment is not used, and therefore the applicability of the device is improved.

Description

Technical Field

[0001] This application relates to the technical field of wind turbines, and specifically relates to a noise-reducing end cover for a wind turbine. Background Technique

[0002] A wind turbine 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 generally consists of components such as a wind wheel, a generator (including devices), a yaw regulator (tail fin), a tower, a speed-limiting safety mechanism, and an energy storage device.

[0003] After retrieval, the patent document with the publication number CN219740082U discloses a noise-reducing end cover for a wind turbine, including a generator body. A pair of support plates are arranged on both sides of the generator body. A limiting rod is arranged between the pair of support plates. The two ends of the limiting rod are respectively rotatably connected between the pair of support plates. An output plate is fixedly connected to the outer side of the rod body of the limiting rod. A first clamping block is fixedly connected to the top end of one side of the output plate. A plurality of springs are fixedly connected to the bottom end of the output plate on the side of the first clamping block. In this utility model, first, the second clamping block is pressed against the position of the first clamping block, so that the second clamping block can be limited by the first clamping block. Further, the reinforcing ring is rotated and sleeved on the outer side of the arc-shaped plate. Further, the sound absorption holes formed on its surface are used for preliminary noise reduction. Further, the internal sound-absorbing cotton is used for secondary noise reduction, so as to achieve the purpose of facilitating the installation of the end cover and reducing the noise of the generator by the end cover.

[0004] In the above device, when the device is not in use, external dust easily enters the generator body through the sound absorption holes, causing damage to the device and poor applicability. Summary of the Utility Model

[0005] The purpose of this application is to provide a noise-reducing end cover for a wind turbine, which solves the problems raised in the background technique.

[0006] An embodiment of this application provides a noise-reducing end cover for a wind turbine, including an end cover body. A partition is connected to the inner side wall of the end cover body. A plurality of sound absorption holes are formed in the bottom end of the end cover body and the partition. A rotating shaft is rotatably connected to the inner bottom end of the end cover body. The upper end of the rotating shaft passes through the side wall of the partition and extends upward. A plurality of rotating rods are rotatably installed at equal intervals and evenly at the lower end of the partition. A baffle is connected to the lower end of the rotating rod, and the baffle is located at the position corresponding to the sound absorption hole. A driving gear is fixedly sleeved on the shaft wall of the rotating shaft. A driven gear is fixedly sleeved on the rod wall of the rotating rod, and the driving gear meshes with the driven gear. A plurality of sound-absorbing cottons are evenly and equidistantly connected to the lower end of the partition. Two moving plates are symmetrically and slidably connected to the upper end of the partition.

[0007] By adopting the above technical solution, during use, the end cover body is installed on the generator. The noise generated by the generator is initially reduced through the sound absorption holes, and then further reduced by the sound absorption cotton. When it is not needed, rotate the rotating shaft. The rotation of the rotating shaft will drive the driving gear to rotate. The rotation of the driving gear will drive the rotating rod to rotate through the driven gear. The rotation of the rotating rod will drive the baffle to rotate, so that the baffle blocks the corresponding sound absorption holes. At the same time, the moving plate is used to block the sound absorption holes on the partition board. Through the above structure, the noise reduction effect can be achieved. At the same time, it can also prevent dust from entering the equipment when the equipment is not in use, thereby improving the applicability of the device.

[0008] Optionally, a rotating handle is connected to the upper end of the rotating shaft.

[0009] By adopting the above technical solution, it is convenient for the staff to rotate the rotating shaft.

[0010] Optionally, two sliding grooves are symmetrically formed at the upper end of the partition board. A slider is slidably connected in the sliding groove, and the upper end of the slider is connected to the corresponding moving plate.

[0011] By adopting the above technical solution, the slider is limited, and the stability of the moving plate during movement is improved.

[0012] Optionally, a sliding rod is fixedly connected to the inner wall of the sliding groove. The sliding rod penetrates through the slider, and the slider is slidably connected to the sliding rod.

[0013] By adopting the above technical solution, the slider is prevented from detaching from the sliding groove.

[0014] Optionally, a rolling groove is formed at the lower end of the slider. A rolling ball is arranged in the rolling groove. The rolling ball passes through the notch of the rolling groove, and the rolling ball is rollingly connected to the bottom of the sliding groove.

[0015] By adopting the above technical solution, the friction between the slider and the sliding groove is reduced.

[0016] Optionally, a pushing block is connected to the upper end of the moving plate.

[0017] By adopting the above technical solution, it is convenient to apply a force to the moving plate.

[0018] Optionally, the partition board is a sound insulation board.

[0019] By adopting the above technical solution, the noise reduction effect is further achieved.

[0020] Compared with the prior art, the beneficial effects of the technical solution of the present application are as follows:

[0021] The technical solution of this application can achieve the effect of noise reduction through the mutual cooperation among structures such as the end cover body, partition board, sound-absorbing holes, rotating shaft, rotating rod, baffle, driving gear, driven gear, sound-absorbing cotton, and moving plate. At the same time, it can also prevent dust from entering the equipment when the equipment is not in use, thereby improving the applicability of the device. Brief Description of the Drawings

[0022] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objectives, and advantages of this application will become more obvious:

[0023] Figure 1 It is a schematic diagram of the overall structure of a noise-reducing wind turbine end cover of this application;

[0024] Figure 2 It is a schematic diagram of the internal structure of a noise-reducing wind turbine end cover of this application;

[0025] Figure 3 It is a schematic diagram of the slider structure in a noise-reducing wind turbine end cover of this application.

[0026] In the figure: 1. End cover body; 2. Partition board; 3. Sound-absorbing holes; 4. Rotating shaft; 5. Rotating rod; 6. Baffle; 7. Driving gear; 8. Driven gear; 9. Sound-absorbing cotton; 10. Moving plate; 11. Rotating handle; 12. Slider; 13. Slide bar; 14. Ball. Detailed Embodiment

[0027] Please refer to Figures 1-3 , this application provides a technical solution: a noise-reducing wind turbine end cover, including an end cover body 1, a partition board 2 is connected to the inner side wall of the end cover body 1, a plurality of sound-absorbing holes 3 are opened on the bottom end of the end cover body 1 and the partition board 2, a rotating shaft 4 is rotatably connected to the inner bottom end of the end cover body 1, the rotating shaft 4 is set as a hollow tube, the upper end of the rotating shaft 4 passes through the side wall of the partition board 2 and extends upward, a plurality of rotating rods 5 are rotatably installed at equal intervals and evenly at the lower end of the partition board 2, a baffle 6 is connected to the lower end of the rotating rod 5, and the baffle 6 is located at the position of the corresponding sound-absorbing hole 3, a driving gear 7 is fixedly sleeved on the shaft wall of the rotating shaft 4, a driven gear 8 is fixedly sleeved on the rod wall of the rotating rod 5, and the driving gear 7 meshes with the driven gear 8, a plurality of sound-absorbing cottons 9 are connected at equal intervals and evenly at the lower end of the partition board 2, and two moving plates 10 are symmetrically and slidably connected to the upper end of the partition board 2.

[0028] In the technical solution of this application, during use, the end cover body 1 is installed on the generator. The noise generated by the generator is initially reduced through the sound absorption holes 3, and then further reduced through the sound absorption cotton 9. When it is not needed, rotate the rotating shaft 4. The rotation of the rotating shaft 4 will drive the driving gear 7 to rotate. The rotation of the driving gear 7 will drive the rotating rod 5 to rotate through the driven gear 8. The rotation of the rotating rod 5 will drive the baffle 6 to rotate, so that the baffle 6 blocks the corresponding sound absorption holes 3. At the same time, the sound absorption holes 3 on the partition plate 2 are blocked by the moving plate 10. Through the above structure, the noise reduction effect can be achieved. At the same time, it can also prevent dust from entering the equipment when the equipment is not in use, thereby improving the applicability of the device.

[0029] In the technical solution of this application, a rotating handle 11 is connected to the upper end of the rotating shaft 4, which is convenient for the staff to rotate the rotating shaft 4.

[0030] In the technical solution of this application, two sliding grooves are symmetrically opened at the upper end of the partition plate 2. A slider 12 is slidably connected in the sliding groove, and the upper end of the slider 12 is connected to the corresponding moving plate 10 to limit the slider 12 and improve the stability of the moving plate 10 during movement.

[0031] In the technical solution of this application, a sliding rod 13 is fixedly connected to the inner wall of the sliding groove. The sliding rod 13 passes through the slider 12, and the slider 12 is slidably connected to the sliding rod 13 to prevent the slider 12 from disengaging from the sliding groove.

[0032] In the technical solution of this application, a rolling groove is opened at the lower end of the slider 12. A rolling ball 14 is arranged in the rolling groove. The rolling ball 14 passes through the notch of the rolling groove, and the rolling ball 14 is in rolling connection with the bottom of the sliding groove to reduce the friction between the slider 12 and the sliding groove.

[0033] In the technical solution of this application, a pushing block is connected to the upper end of the moving plate 10, which is convenient for applying a force to the moving plate 10.

[0034] In the technical solution of this application, the partition plate 2 is a sound insulation plate, which further improves the noise reduction effect.

[0035] During use, the end cover body 1 is installed on the generator. The noise generated by the generator is initially reduced through the sound absorption holes 3, and then further reduced through the sound absorption cotton 9. When it is not needed, rotate the rotating shaft 4. The rotation of the rotating shaft 4 will drive the driving gear 7 to rotate. The rotation of the driving gear 7 will drive the rotating rod 5 to rotate through the driven gear 8. The rotation of the rotating rod 5 will drive the baffle 6 to rotate, so that the baffle 6 blocks the corresponding sound absorption holes 3. At the same time, the sound absorption holes 3 on the partition plate 2 are blocked by the moving plate 10.

Claims

1. A noise-reducing end cover for a wind turbine, comprising an end cover body (1), characterized in that: A partition plate (2) is connected to the inner side wall of the end cover body (1). A plurality of sound absorption holes (3) are formed in the bottom end of the end cover body (1) and the partition plate (2). A rotating shaft (4) is rotatably connected to the inner bottom end of the end cover body (1). The upper end of the rotating shaft (4) passes through the side wall of the partition plate (2) and extends upward. A plurality of rotating rods (5) are rotatably installed at the lower end of the partition plate (2) at equal intervals. A baffle (6) is connected to the lower end of the rotating rod (5), and the baffle (6) is located at the position of the corresponding sound absorption hole (3). A driving gear (7) is fixedly sleeved on the shaft wall of the rotating shaft (4). A driven gear (8) is fixedly sleeved on the rod wall of the rotating rod (5), and the driving gear (7) is meshed with the driven gear (8). A plurality of sound absorption cotton (9) are evenly connected to the lower end of the partition plate (2) at equal intervals. Two moving plates (10) are symmetrically and slidably connected to the upper end of the partition plate (2).

2. The noise-reducing type wind turbine end cover according to claim 1, characterized in that, A rotating handle (11) is connected to the upper end of the rotating shaft (4).

3. A noise reduction type end cover of a wind turbine according to claim 1, characterized in that, Two sliding grooves are symmetrically formed in the upper end of the partition plate (2). A slider (12) is slidably connected in the sliding groove. The upper end of the slider (12) is connected to the corresponding moving plate (10).

4. The noise reduction type end cover of a wind turbine according to claim 3, characterized in that, A sliding rod (13) is fixedly connected to the inner wall of the sliding groove. The sliding rod (13) penetrates through the slider (12), and the slider (12) is slidably connected to the sliding rod (13).

5. The noise reduction type end cover of a wind turbine according to claim 4, characterized in that, A rolling groove is formed in the lower end of the slider (12). A rolling ball (14) is arranged in the rolling groove. The rolling ball (14) passes through the notch of the rolling groove, and the rolling ball (14) is in rolling connection with the bottom of the sliding groove.

6. The noise-reducing type wind turbine end cover according to claim 1, characterized in that, A pushing block is connected to the upper end of the moving plate (10).

7. A noise-reducing type end cover of a wind turbine according to claim 1, characterized in that, The partition plate (2) is a sound insulation plate.

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