Wind turbine generator blade lightning drainage loop resistance monitoring device

Abstract

The utility model discloses a wind turbine generator blade lightning drainage loop resistance monitoring device which comprises an installation box, a supporting mechanism and a fixing mechanism. The supporting mechanism is arranged on the mounting box, the supporting mechanism comprises a supporting plate, a placement groove is formed in the supporting plate, a resistance monitoring device body is arranged in the mounting box, and a plurality of supporting blocks are arranged on the resistance monitoring device body; the fixing mechanism is arranged in the mounting box, the fixing mechanism comprises a plurality of sliding plates, a pair of fixing blocks are arranged on the sliding plates, baffles are arranged below the sliding plates, and fixing springs are connected between the baffles and the mounting box. According to the utility model, through arrangement of related mechanisms of the resistance monitoring device, the resistance monitoring device can be rapidly dismounted and mounted, and the time for maintenance personnel to maintain or replace the resistance monitoring device can be reduced, so that the time for the maintenance personnel to work aloft can be reduced, and the possibility of danger occurrence can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of installation and disassembly of resistance monitoring devices, and in particular relates to a resistance monitoring device for a lightning diversion loop of a blade of a wind turbine generator set. Background Art

[0002] Wind turbine blades are a key part of wind turbines, and their normal working state is crucial to the stability and safety of the entire system. The lightning diversion circuit is an important part of wind turbine blades, which is mainly responsible for guiding the normal discharge of lightning current and preventing damage to the wind turbine due to the influence of lightning current. The wind turbine blade lightning diversion circuit resistance monitoring device is mainly used to detect the resistance of the lightning diversion circuit of the wind turbine blade to ensure its normal operation and safety.

[0003] In the prior art, the resistance monitoring device needs to be regularly inspected and replaced during use so that the resistance monitoring device can operate normally. However, the resistance monitoring device is installed at the tip of the wind turbine blade, which is far from the ground. Maintenance personnel need to be lowered from the top of the wind turbine to inspect and replace the resistance monitoring device. In addition, the resistance monitoring device is fixed with bolts, which makes the disassembly process of the resistance monitoring device more cumbersome and time-consuming, thereby increasing the time for maintenance personnel to work at high altitudes, which easily increases the possibility of danger and poses a threat to the life and health of maintenance personnel.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a wind turbine blade lightning diversion circuit resistance monitoring device, which can be used to solve the problem that the resistance monitoring device is difficult to disassemble and install.

[0006] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0007] A wind turbine blade lightning diversion loop resistance monitoring device, comprising: a mounting box, a supporting mechanism and a fixing mechanism;

[0008] The support mechanism is arranged on the installation box, and the support mechanism includes a support plate, and a placement groove is cut on the support plate. The resistance monitoring device body is arranged inside the installation box, and a plurality of support blocks are arranged on the resistance monitoring device body;

[0009] The fixing mechanism is arranged inside the installation box, and comprises a plurality of sliding plates, a pair of fixing blocks are arranged on the sliding plates, baffles are arranged under the plurality of sliding plates, and fixing springs are connected between the baffles and the installation box.

[0010] In one or more embodiments of the utility model, a cover plate is hinged on the installation box, and the cover plate is used to seal the opening on the installation box, so as to protect the resistance monitoring device body inside the installation box from being easily damaged. Bolts are threadedly connected on the cover plate, and the bolts can fix one end of the cover plate to the installation box. Threaded holes corresponding to the bolts are drilled on the installation box, and the threaded holes are used to place the bolts so that the bolts can be fixed to the installation box.

[0011] In one or more embodiments of the utility model, a fixing frame is provided on the installation box, the fixing frame is used to support the supporting spring and the supporting frame, and the supporting frame is slidably connected to the fixing frame, and the supporting frame can support the resistance monitoring device body.

[0012] In one or more embodiments of the present invention, a plurality of support springs are connected between the fixing frame and the support frame, and the support springs can support the support frame, so that the support frame can support the resistance monitoring device body.

[0013] In one or more embodiments of the utility model, a plurality of fixing rods are further provided on the installation box, and the fixing rods are slidably connected to the sliding plate and the baffle. The plurality of fixing rods are used to support the sliding plate and the baffle, and can constrain the moving trajectory of the sliding plate and the baffle. Bearings are connected between the sliding plate and the baffle, and the bearings are used to connect the sliding plate and the baffle, so that the sliding plate is not easily driven to rotate with the baffle during rotation.

[0014] In one or more embodiments of the utility model, a plurality of the sliding plates are fixedly connected with a sleeve, and the sleeve is slidably connected to the support plate. Pressing the sleeve can push the sliding plate and the baffle downward to squeeze the fixed spring, and rotating the sleeve can drive the sliding plate to rotate, so that the sliding plate drives the fixed block to fix the support block.

[0015] Compared with the prior art, the resistance monitoring device of the utility model can be quickly disassembled and installed, which can reduce the time for maintenance personnel to inspect or replace the resistance monitoring device, thereby reducing the time for maintenance personnel to work at heights and reducing the possibility of danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a cross-sectional view of a wind turbine blade lightning diversion circuit resistance monitoring device in one embodiment of the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the local structure at A in the middle;

[0019] Figure 3 This is a partial structural diagram of a fixing mechanism in one embodiment of the utility model;

[0020] Figure 4 It is a stereoscopic diagram of a wind turbine blade lightning diversion circuit resistance monitoring device in one embodiment of the utility model.

[0021] Description of main reference numerals:

[0022] 1-installation box, 101-cover plate, 102-bolt, 103-threaded hole, 2-support mechanism, 201-support plate, 202-placement slot, 203-resistance monitoring device body, 204-support block, 205-fixing frame, 206-support frame, 207-support spring, 3-fixing mechanism, 301-sliding plate, 302-fixing block, 303-baffle, 304-fixing spring, 305-fixing rod, 306-bearing, 307-sleeve. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] like Figures 1 to 4 As shown, a wind turbine blade lightning diversion circuit resistance monitoring device in one embodiment of the utility model includes: an installation box 1, a supporting mechanism 2 and a fixing mechanism 3.

[0025] like Figure 4As shown, the installation box 1 is installed inside the wind turbine blade, so that the resistance monitoring device body 203 can be connected to the circuit inside the wind turbine blade. A cover plate 101 is hinged on the installation box 1, and the cover plate 101 is used to block the opening on the installation box 1, so as to protect the resistance monitoring device body 203 inside the installation box 1 from being easily damaged.

[0026] like Figure 4 As shown, the cover plate 101 is threadedly connected with a bolt 102, and the bolt 102 can fix one end of the cover plate 101 to the installation box 1. The installation box 1 is drilled with a threaded hole 103 corresponding to the bolt 102, and the threaded hole 103 is used to place the bolt 102 inside so that the bolt 102 can be fixed to the installation box 1.

[0027] like Figures 1 to 4 As shown, the support mechanism 2 is arranged on the installation box 1, and the support mechanism 2 includes a support plate 201, and the support plate 201 is used to support multiple support blocks 204. A placement groove 202 is cut on the support plate 201, and one side of the resistance monitoring device body 203 and multiple support blocks 204 can be placed under the support plate 201 through the placement groove 202.

[0028] like Figure 1 to Figure 2 As shown, a resistance monitoring device body 203 is arranged inside the installation box 1, and the resistance monitoring device body 203 can monitor the resistance of the lightning diversion circuit of the wind turbine blade. A plurality of support blocks 204 are arranged on the resistance monitoring device body 203, and the support blocks 204 are used to support the resistance monitoring device body 203.

[0029] like Figure 1 As shown, the installation box 1 is provided with a fixing frame 205, and the fixing frame 205 is used to support the supporting spring 207 and the supporting frame 206. The fixing frame 205 is slidably connected with the supporting frame 206, and the supporting frame 206 can support the resistance monitoring device body 203.

[0030] like Figure 1 As shown, a plurality of support springs 207 are connected between the fixing frame 205 and the support frame 206 , and the support springs 207 can support the support frame 206 , so that the support frame 206 can support the resistance monitoring device body 203 .

[0031] like Figure 3 As shown, the fixing mechanism 3 is arranged inside the installation box 1, and the fixing mechanism 3 includes a plurality of sliding plates 301, and the sliding plates 301 are used to support the fixing blocks 302. A pair of fixing blocks 302 are arranged on the sliding plates 301, and the fixing blocks 302 are used to fix the supporting blocks 204.

[0032] like Figure 3As shown, baffles 303 are provided below the plurality of sliding plates 301, and the baffles 303 are used to support the fixing springs 304. The fixing springs 304 are connected between the baffles 303 and the installation box 1, and the fixing springs 304 can push the baffles 303, thereby pushing the sliding plates 301 and the fixing blocks 302, so that the fixing blocks 302 can fix the supporting blocks 204.

[0033] like Figure 3 As shown, a plurality of fixing rods 305 are also provided on the installation box 1 , and the fixing rods 305 are slidably connected to the sliding plate 301 and the baffle 303 . The plurality of fixing rods 305 are used to support the sliding plate 301 and the baffle 303 , and can constrain the moving trajectories of the sliding plate 301 and the baffle 303 .

[0034] like Figure 3 As shown, a bearing 306 is connected between the sliding plate 301 and the baffle 303 , and the bearing 306 is used to connect the sliding plate 301 and the baffle 303 , so that the sliding plate 301 is not easy to drive the baffle 303 to rotate during the rotation process.

[0035] like Figure 3 As shown, multiple sliding plates 301 are fixedly connected with sleeves 307, and the sleeves 307 are slidably connected to the support plate 201. Pressing the sleeve 307 can push the sliding plate 301 and the baffle 303 downward to squeeze the fixed spring 304, and rotating the sleeve 307 can drive the sliding plate 301 to rotate, so that the sliding plate 301 drives the fixed block 302 to fix the support block 204.

[0036] When in use, unscrew the bolt 102 so that the bolt 102 is not easy to fix the cover plate 101, open the cover plate 101, place one side of the resistance monitoring device body 203 and multiple support blocks 204 under the support plate 201 through the placement groove 202, and move the resistance monitoring device body 203 so that the support plate 201 can support the support blocks 204;

[0037] The resistance monitoring device body 203 presses the support frame 206 during placement, thereby pressing the support spring 207. The support spring 207 is squeezed to generate a reverse thrust, so that the support spring 207 can push the support frame 206, so that the support frame 206 can push the multiple support blocks 204, so that the support blocks 204 are supported on the support plate 201;

[0038] Press the sleeve 307, the sleeve 307 drives the sliding plate 301 and the baffle 303 to press the fixed spring 304, and rotate the sleeve 307, the sleeve 307 can drive the sliding plate 301 to rotate, thereby driving the pair of fixed blocks 302 to rotate;

[0039] Loosen the sleeve 307, the sliding plate 301 and the baffle 303 no longer press the fixed spring 304, and the fixed spring 304 pushes the baffle 303 and the sliding plate 301 to move, so that the sliding plate 301 drives a pair of fixed blocks 302 to support on both sides of the support block 204, so that the support block 204 can be fixed and the support block 204 is not easy to move, so that the resistance monitoring device body 203 can be fixed;

[0040] During disassembly, the sleeve 307 is pressed and rotated in the opposite direction, so that the sliding plate 301 drives the fixed block 302 to move, thereby making it difficult for the fixed block 302 to fix the support block 204, and the resistance monitoring device body 203 is moved to align multiple support blocks 204 with the placement groove 202. Under the push of the support frame 206 and the support spring 207, the resistance monitoring device body 203 and the support blocks 204 can be pushed out from under the support plate 201, so that the resistance monitoring device body 203 can be removed.

[0041] Compared with the prior art, the resistance monitoring device of the utility model can be quickly disassembled and installed, which can reduce the time for maintenance personnel to inspect or replace the resistance monitoring device, thereby reducing the time for maintenance personnel to work at heights and reducing the possibility of danger.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wind turbine blade lightning diversion circuit resistance monitoring device, characterized in that: include: Installation box (1); A support mechanism (2) is arranged on the installation box (1), the support mechanism (2) comprises a support plate (201), a placement groove (202) is cut on the support plate (201), a resistance monitoring device body (203) is arranged inside the installation box (1), and a plurality of support blocks (204) are arranged on the resistance monitoring device body (203); A fixing mechanism (3) is arranged inside the installation box (1), and the fixing mechanism (3) comprises a plurality of sliding plates (301), a pair of fixing blocks (302) are arranged on the sliding plates (301), baffles (303) are arranged below the plurality of sliding plates (301), and a fixing spring (304) is connected between the baffles (303) and the installation box (1).

2. A wind turbine blade lightning diversion circuit resistance monitoring device according to claim 1, characterized in that: The installation box (1) is hinged with a cover plate (101), the cover plate (101) is threadedly connected with bolts (102), and the installation box (1) is drilled with threaded holes (103) corresponding to the bolts (102).

3. A wind turbine blade lightning diversion circuit resistance monitoring device according to claim 1, characterized in that: The installation box (1) is provided with a fixing frame (205), and a supporting frame (206) is slidably connected to the fixing frame (205).

4. A wind turbine blade lightning diversion circuit resistance monitoring device according to claim 3, characterized in that: A plurality of support springs (207) are connected between the fixing frame (205) and the support frame (206).

5. A wind turbine blade lightning diversion circuit resistance monitoring device according to claim 1, characterized in that: The installation box (1) is also provided with a plurality of fixing rods (305), the fixing rods (305) are slidably connected to the sliding plate (301) and the baffle plate (303), and bearings (306) are connected between the plurality of sliding plates (301) and the baffle plate (303).

6. A wind turbine blade lightning diversion circuit resistance monitoring device according to claim 1, characterized in that: A sleeve (307) is fixedly connected to each of the plurality of sliding plates (301), and the sleeve (307) is slidably connected to the support plate (201).

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