Lightning protection grounding device of wind driven generator

Abstract

The utility model provides a lightning protection grounding device of a wind driven generator, which relates to the technical field of wind driven generators, and comprises a power generation equipment main body and an insulating plate overlapped on the surface of the power generation equipment main body, the mounting assembly is arranged in the insulating plate; and the insulating box is fixed at the upper end of the first telescopic rod. According to the lightning protection grounding device for the wind driven generator, the lightning rod body can be clamped and fixed through the limiting assembly and the limiting frame, workers can independently maintain and replace the lightning rod body conveniently, the working time is shortened, the maintenance efficiency is improved, the whole lightning protection mechanism does not need to be replaced every time, only the damaged lightning rod needs to be replaced, and the working efficiency is improved. And meanwhile, the lightning rod body can be clamped and fixed at the same time from the bottom and the middle through the limiting assembly and the limiting frame, the vibration and impact resisting capacity of the lightning rod body can be effectively improved, and the stability of the lightning rod body in a severe environment is ensured.

Description

Technical Field

[0001] The utility model relates to a lightning protection grounding device, in particular to a lightning protection grounding device for a wind turbine generator, belonging to the technical field of wind turbine generators. Background Art

[0002] A wind turbine is an electrical device that converts wind energy into mechanical energy, which in turn drives the rotor to rotate and ultimately outputs alternating current. Lightning protection and grounding systems for wind turbines generally consider two main aspects: the nacelle and the blades. Nacelle lightning protection typically involves installing a lightning rod at the rear end of the nacelle casing, grounded through the steel casing and tower. Blade lightning protection primarily involves installing lightning receptors on both sides of the blade tip. These receptors are connected to a conduction system that directs lightning current through the blades in a controlled manner and into the ground through the hub and tower, thereby protecting the blades. When a lightning rod is directly struck by lightning or exposed to severe weather conditions (such as strong winds, heavy rain, ice and snow) for an extended period, it may be subject to mechanical shock or corrosion, affecting its structural integrity.

[0003] A lightning protection grounding device for a wind turbine generator with Chinese patent publication number CN215771906U effectively prevents high electricity from being transferred from the bottom of the lightning rod body to the generator bracket, thus achieving better protection effect. However, when replacing a damaged lightning rod, the entire lightning protection mechanism needs to be replaced, which is not only time-consuming and labor-intensive but also causes a certain degree of waste. In addition, the lightning protection mechanism of the application is inconvenient to install and disassemble, making it inconvenient for operators to use.

[0004] Therefore, a lightning protection grounding device for a wind turbine is proposed. Utility Model Content

[0005] The utility model proposes a lightning protection grounding device for a wind turbine to solve the problem in the prior art that when replacing a damaged lightning rod, the entire lightning protection mechanism needs to be replaced, which is not only time-consuming and labor-intensive, but also causes a certain degree of waste. At the same time, the lightning protection mechanism of the application is inconvenient to install and disassemble, making it inconvenient for operators to use.

[0006] The utility model is implemented through the following technical solutions: a lightning protection grounding device for a wind turbine, comprising a power generation equipment body and an insulating plate overlapped on the surface of the power generation equipment body, a first telescopic rod and a damper being fixed on the upper surface of the insulating plate, a mounting assembly arranged inside the insulating plate and an insulating box fixed to the upper end of the first telescopic rod, the insulating plate being fixed to the surface of the power generation equipment body by the mounting assembly;

[0007] A limiting assembly is also provided inside the insulating box, a limiting frame is fixed on the surface of the insulating box, a lightning rod body is provided above the insulating plate, the lightning rod body is fixed to the surface of the insulating box through the limiting assembly and the limiting frame, and a grounding conductive rod is fixed on the side of the limiting frame.

[0008] Furthermore, a transmission compartment is opened inside the insulating box, and the limit assembly includes a second knob arranged on the side of the insulating box, a second threaded rod is fixed to the side of the second knob, the other end of the second threaded rod rotates through the transmission compartment through a bearing, and the other end of the second threaded rod is rotatably connected to the inner wall of the transmission compartment, a threaded cap is threadedly connected to the surface of the second threaded rod, a connecting rod is fixed to the upper surface of the threaded cap, and a limiting plate is fixed to the upper end of the connecting rod.

[0009] Furthermore, the second threaded rod is a bidirectional threaded rod, and there are two threaded caps, connecting rods and limit plates, which are symmetrically arranged on the surface of the second threaded rod. A movable groove is provided on the surface of the transmission compartment, and a placement groove is provided on the surface of the insulation box. The lower end of the lightning rod body is overlapped on the inner wall of the placement groove, the connecting rod is passed through the movable groove, and the side of the limit plate is tightly fitted with the lightning rod body.

[0010] Furthermore, the limit frame also includes a second telescopic rod, a limit hole is opened on the surface of the limit frame, one end of the second telescopic rod is fixed to the inner wall of the limit hole, the other end of the second telescopic rod is fixed with a clamping plate, and a third spring is sleeved on the surface of the second telescopic rod. The lightning rod body is inserted into the limit hole, and the side of the clamping plate is tightly fitted with the lightning rod body.

[0011] Furthermore, the mounting assembly includes a first knob arranged on the surface of the insulating plate, a movable compartment is opened inside the insulating plate, a first threaded rod is fixed to the lower surface of the first knob, the lower end of the first threaded rod rotates through the movable compartment through a bearing, a threaded tube is threadedly connected to the surface of the first threaded rod, and a pushing block is fixed to the lower end of the threaded tube. The mounting assembly also includes a fixed block fixed to the lower surface of the insulating plate, a fixing groove is opened on the surface of the main body of the power generation equipment, and the fixed block is clamped in the fixing groove.

[0012] Furthermore, a telescopic groove is provided on the surface of the fixed block, the telescopic groove is connected to the movable warehouse, the pushing block is arranged in the telescopic groove, a limiting rod is passed through the inside of the telescopic groove, the limiting rod and the pushing block are perpendicular to each other, a first spring is sleeved on the surface of the limiting rod, a limiting groove is provided on the surface of the fixed groove, one end of the limiting rod is clamped in the limiting groove, there are two limiting rods and two first springs, and they are symmetrically arranged on both sides of the pushing block.

[0013] Furthermore, a slider is fixed to the side of the threaded tube, and a slide groove is provided on the surface of the movable warehouse. The slider moves in the slide groove. The threaded tube moves in the movable warehouse through the first knob, the first threaded rod, the slider and the slide groove. There are two sliders and two slide grooves, and they are symmetrically arranged on both sides of the threaded tube.

[0014] The utility model provides a lightning protection grounding device for a wind turbine generator, which has the following beneficial effects:

[0015] 1. The wind turbine lightning protection grounding device can clamp and fix the lightning rod body through the limit assembly and the limit frame, which makes it convenient for the staff to perform separate maintenance and replacement of the lightning rod body, reduces the operation time, improves the maintenance efficiency, and does not need to replace the entire lightning protection mechanism every time. It is only necessary to replace the damaged lightning rod, which can reduce material and labor costs. At the same time, the limit assembly and the limit frame can clamp and fix the lightning rod body from the bottom and the middle at the same time, which can effectively improve the ability of the lightning rod body to resist vibration and impact, and ensure its stability in harsh environments.

[0016] 2. The lightning protection grounding device of the wind turbine can be quickly replaced by installing components when the entire lightning protection structure is damaged on a large scale, ensuring that the lightning protection grounding device is restored to normal working condition as soon as possible. It can also reduce the time that workers stay on the power generation equipment, thereby reducing the safety risks that may be faced in high-altitude operations. At the same time, the installation components can also keep the device in a stable state during use, reducing the environmental impact it is exposed to.

[0017] 3. The wind turbine lightning protection grounding device is composed of an insulating plate, an insulating box and a damper. The insulating plate and the insulating box can prevent high electricity from being transferred from the bottom of the lightning rod body to the main body of the power generation equipment, thereby improving the safety of the main body of the power generation equipment; the damper can provide buffering protection for the insulating box to which the lightning rod body is fixed, and at the same time prevent the entire insulating box from vibrating when the lightning rod body vibrates, thereby reducing the impact on the insulating box and thus improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a front cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a side sectional structural diagram of the present utility model;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the structure enlarged at point A in the middle.

[0022] Description of Reference Numerals

[0023] 1. Power generation equipment body; 101. Fixing slot; 102. Limiting slot; 2. Insulation board; 201. Movable compartment;

[0024] 3. Mounting assembly; 301. First knob; 302. First threaded rod; 303. Threaded tube; 304. Push block; 305. Fixed block; 306. Telescopic slot; 307. Limiting rod; 308. First spring; 309. Slider;

[0025] 4. First telescopic rod; 5. Insulation box; 501. Transmission compartment; 502. Placement slot; 6. Lightning rod body;

[0026] 7. Limiting assembly; 701. Second knob; 702. Second threaded rod; 703. Threaded cap; 704. Connecting rod; 705. Limiting plate;

[0027] 8. Limiting frame; 801. Second telescopic rod; 802. Third spring; 803. Clamping plate;

[0028] 9. Grounding conductive rod; 10. Damper. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] See also Figures 1 to 4The embodiment of the utility model provides a lightning protection and grounding device for a wind turbine, comprising a power generation device body 1 and an insulating plate 2 overlapped on the surface of the power generation device body 1, a first telescopic rod 4 and a damper 10 are fixed to the upper surface of the insulating plate 2, and further comprising a mounting assembly 3 arranged inside the insulating plate 2 and an insulating box 5 fixed to the upper end of the first telescopic rod 4, the insulating plate 2 being fixed to the surface of the power generation device body 1 by the mounting assembly 3; a limiting assembly 7 is further arranged inside the insulating box 5, a limiting frame 8 is fixed on the surface of the insulating box 5, a lightning rod body 6 is arranged above the insulating plate 2, and the lightning rod body 6 is fixed by the limiting assembly 7 The limit frame 8 is fixed on the surface of the insulating box 5, and a grounding conductive rod 9 is fixed on the side of the limit frame 8; the wind turbine lightning protection grounding device is through the insulating plate 2, the insulating box 5 and the damper 10, wherein the insulating plate 2 and the insulating box 5 can prevent high electricity from being transferred from the bottom of the lightning rod body 6 to the power generation equipment body 1, thereby improving the safety of the power generation equipment body 1; the damper 10 can buffer and protect the insulating box 5 to which the lightning rod body 6 is fixed, and at the same time avoid the vibration of the entire insulating box 5 after the lightning rod body 6 vibrates, thereby reducing the impact on the insulating box 5, thereby improving the service life of the device.

[0031] Please refer to Figure 1 and Figure 2, a transmission warehouse 501 is opened inside the insulating box 5, and the limiting assembly 7 includes a second knob 701 arranged on the side of the insulating box 5, and a second threaded rod 702 is fixed on the side of the second knob 701, and the other end of the second threaded rod 702 rotates through the transmission warehouse 501 through a bearing, and the other end of the second threaded rod 702 is rotatably connected to the inner wall of the transmission warehouse 501, and the surface of the second threaded rod 702 is threadedly connected with a threaded cap 703, and the upper surface of the threaded cap 703 is fixed with a connecting rod 704, and the upper end of the connecting rod 704 is fixed with a limiting plate 705; the second threaded rod 702 is a bidirectional threaded rod, and there are two threaded caps 703, connecting rod 704 and limiting plates 705, which are symmetrically arranged on the surface of the second threaded rod 702, a movable groove is opened on the surface of the transmission warehouse 501, and a placement groove 502 is opened on the surface of the insulating box 5. The lower end of the lightning rod body 6 is overlapped on the inner wall of the placement groove 502, the connecting rod 704 is passed through the movable groove, and the side of the limiting plate 705 is tightly fitted with the lightning rod body 6; limit The positioning frame 8 also includes a second telescopic rod 801, a limiting hole is provided on the surface of the limiting frame 8, one end of the second telescopic rod 801 is fixed to the inner wall of the limiting hole, and the other end of the second telescopic rod 801 is fixed with a clamping plate 803, and a third spring 802 is sleeved on the surface of the second telescopic rod 801. The lightning rod body 6 is passed through the limiting hole, and the side of the clamping plate 803 is tightly fitted with the lightning rod body 6; the wind turbine lightning protection grounding device can clamp and fix the lightning rod body 6 through the limiting component 7 and the limiting frame 8, which is convenient for the staff to perform separate maintenance and replacement of the lightning rod body 6, reducing the working time and improving the maintenance efficiency. There is no need to replace the entire lightning protection mechanism every time, only the damaged lightning rod needs to be replaced, which can reduce material and labor costs. At the same time, the limiting component 7 and the limiting frame 8 can clamp and fix the lightning rod body 6 from the bottom and the middle at the same time, which can effectively improve the ability of the lightning rod body 6 to resist vibration and impact, and ensure its stability in harsh environments.

[0032] Please refer to Figure 3 and Figure 4The mounting assembly 3 includes a first knob 301 provided on the surface of the insulating plate 2, a movable chamber 201 is provided inside the insulating plate 2, a first threaded rod 302 is fixed to the lower surface of the first knob 301, the lower end of the first threaded rod 302 rotates through the movable chamber 201 through a bearing, a threaded tube 303 is threadedly connected to the surface of the first threaded rod 302, and a pushing block 304 is fixed to the lower end of the threaded tube 303, and the mounting assembly 3 also includes a fixing block 305 fixed to the lower surface of the insulating plate 2, a fixing groove 101 is provided on the surface of the power generation equipment body 1, and the fixing block 305 is clamped in the fixing groove 101; a telescopic groove 306 is provided on the surface of the fixing block 305, and the telescopic groove 306 is connected to the movable chamber 201, and the pushing block 304 is provided in the telescopic groove 306, and a limiting rod 307 is passed through the inside of the telescopic groove 306, and the limiting rod 307 and the pushing block 304 are perpendicular to each other, and a first spring 308 is sleeved on the surface of the limiting rod 307, and a limiting groove 101 is provided on the surface of the fixing groove 101 When the cam 308 is in the unlock state, the cam 308 is locked and the locking cam 309 is unlocked, so the cam 308 is locked.

[0033] When the present invention is in use: first, the device is placed on the upper surface of the power generation equipment body 1, and the fixing block 305 on the lower surface of the insulating plate 2 is clamped in the fixing groove 101, and then the staff turns the first knob 301, and the rotation of the first knob 301 drives the first threaded rod 302 to rotate, and the first threaded rod 302 drives the threaded tube 303 and the pushing block 304 fixed at the lower end of the threaded tube 303 to move. During the movement of the pushing block 304, the limiting rod 307 is pushed to move, so that one end of the limiting rod 307 is clamped in the limiting groove 102, completing the installation and fixation of the device.

[0034] Then the staff inserts the lightning rod body 6 into the limiting hole and overlaps its lower end on the surface of the placement groove 502. Then the staff turns the second knob 701 to drive the second threaded rod 702 to rotate, and the second threaded rod 702 drives the threaded cap 703 to move, thereby driving the connecting rod 704 fixed on the upper surface of the threaded cap 703 and the limiting plate 705 fixed on the upper end of the connecting rod 704 to move synchronously. When the side of the limiting plate 705 is tightly fitted with the lightning rod body 6, the staff can stop turning the second knob 701. At the same time, the clamping plate 803 can be tightly fitted with the lightning rod body 6 under the elastic force of the third spring 802; the damper 10 fixed on the lower surface of the insulating box 5 can slow down the vibration when the insulating box 5 vibrates.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A lightning protection grounding device for a wind turbine generator, comprising a generator body (1) and an insulating plate (2) overlapped on the surface of the generator body (1), wherein a first telescopic rod (4) and a damper (10) are fixed to the upper surface of the insulating plate (2), characterized in that: It also includes a mounting assembly (3) arranged inside the insulating plate (2) and an insulating box (5) fixed to the upper end of the first telescopic rod (4); the insulating plate (2) is fixed to the surface of the power generation equipment body (1) through the mounting assembly (3); A limiting assembly (7) is further provided inside the insulating box (5), a limiting frame (8) is fixed on the surface of the insulating box (5), a lightning rod body (6) is provided above the insulating plate (2), the lightning rod body (6) is fixed to the surface of the insulating box (5) through the limiting assembly (7) and the limiting frame (8), and a grounding conductive rod (9) is fixed on the side of the limiting frame (8).

2. A lightning protection grounding device for a wind turbine generator according to claim 1, characterized in that: A transmission chamber (501) is provided inside the insulation box (5), and the limit assembly (7) comprises a second knob (701) arranged on the side of the insulation box (5), a second threaded rod (702) is fixed to the side of the second knob (701), the other end of the second threaded rod (702) rotates through the transmission chamber (501) through a bearing, and the other end of the second threaded rod (702) is rotatably connected to the inner wall of the transmission chamber (501), a threaded cap (703) is threadedly connected to the surface of the second threaded rod (702), a connecting rod (704) is fixed to the upper surface of the threaded cap (703), and a limit plate (705) is fixed to the upper end of the connecting rod (704).

3. A lightning protection grounding device for a wind turbine according to claim 2, characterized in that: The second threaded rod (702) is a bidirectional threaded rod, and there are two threaded caps (703), connecting rods (704) and limiting plates (705), which are symmetrically arranged on the surface of the second threaded rod (702). A movable groove is provided on the surface of the transmission compartment (501), and a placement groove (502) is provided on the surface of the insulating box (5). The lower end of the lightning rod body (6) is overlapped on the inner wall of the placement groove (502), the connecting rod (704) is inserted into the movable groove, and the side of the limiting plate (705) is tightly fitted with the lightning rod body (6).

4. The lightning protection grounding device for a wind turbine generator according to claim 1, characterized in that: The limiting frame (8) further comprises a second telescopic rod (801), a limiting hole is provided on the surface of the limiting frame (8), one end of the second telescopic rod (801) is fixed to the inner wall of the limiting hole, a clamping plate (803) is fixed to the other end of the second telescopic rod (801), a third spring (802) is sleeved on the surface of the second telescopic rod (801), the lightning rod body (6) is inserted into the limiting hole, and the side surface of the clamping plate (803) is tightly fitted with the lightning rod body (6).

5. The lightning protection grounding device for a wind turbine generator according to claim 1, characterized in that: The mounting assembly (3) comprises a first knob (301) arranged on the surface of the insulating plate (2); a movable chamber (201) is provided inside the insulating plate (2); a first threaded rod (302) is fixed on the lower surface of the first knob (301); the lower end of the first threaded rod (302) is rotatably inserted into the movable chamber (201) via a bearing; a threaded tube (303) is threadedly connected to the surface of the first threaded rod (302); a pushing block (304) is fixed to the lower end of the threaded tube (303); the mounting assembly (3) further comprises a fixing block (305) fixed on the lower surface of the insulating plate (2); a fixing groove (101) is provided on the surface of the power generation equipment body (1); and the fixing block (305) is snap-fitted into the fixing groove (101).

6. A lightning protection grounding device for a wind turbine generator according to claim 5, characterized in that: A telescopic slot (306) is provided on the surface of the fixed block (305), and the telescopic slot (306) is communicated with the movable bin (201). The pushing block (304) is arranged in the telescopic slot (306). A limiting rod (307) is provided inside the telescopic slot (306). The limiting rod (307) and the pushing block (304) are perpendicular to each other. A first spring (308) is sleeved on the surface of the limiting rod (307). A limiting slot (102) is provided on the surface of the fixed slot (101), and one end of the limiting rod (307) is clamped in the limiting slot (102). There are two limiting rods (307) and two first springs (308), and they are symmetrically arranged on both sides of the pushing block (304).

7. The lightning protection grounding device for a wind turbine generator according to claim 5, characterized in that: A slider (309) is fixed on the side of the threaded tube (303), and a slide groove is opened on the surface of the movable chamber (201). The slider (309) moves in the slide groove. The threaded tube (303) moves in the movable chamber (201) through the first knob (301), the first threaded rod (302), the slider (309) and the slide groove. There are two sliders (309) and two slide grooves, and they are symmetrically arranged on both sides of the threaded tube (303).

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