CN220955930U - Blade lightning protection device of wind driven generator - Google Patents
Blade lightning protection device of wind driven generator Download PDFInfo
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- CN220955930U CN220955930U CN202322691236.1U CN202322691236U CN220955930U CN 220955930 U CN220955930 U CN 220955930U CN 202322691236 U CN202322691236 U CN 202322691236U CN 220955930 U CN220955930 U CN 220955930U
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- lightning protection
- fixedly connected
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- spring
- protection device
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- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 11
- 239000010935 stainless steel Substances 0.000 claims abstract description 11
- 241000883990 Flabellum Species 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 4
- 239000004020 conductor Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Wind Motors (AREA)
Abstract
The utility model relates to the technical field of wind driven generators and discloses a blade lightning protection device of a wind driven generator, which comprises a lightning protection assembly, wherein the lightning protection assembly comprises a flexible spring, a lightning protection jumper wire is positioned on the inner side of the flexible spring, the top of the flexible spring is fixedly connected with a fixed ring, the bottom of the flexible spring is fixedly connected with a bolt assembly, the bottom of a fixed block is fixedly connected with a cylindrical rod, the other end of the first spring is fixedly connected with a bolt rod, the top of the bolt rod is fixedly connected with a connecting rod, the top of the side surface of the connecting rod is fixedly connected with the fixed rod, and by the lightning protection assembly, when a wind blade changes a pitch, a blade manhole cover plate rotates along with the blade, due to the arrangement of a stainless steel bearing, the cylindrical block can not rotate, even if the cylindrical block rotates along with the blade manhole cover plate, the stress of the rotating torsion is absorbed by the spring, and the machine set is not damaged and stopped due to long-time swing abrasion and fracture.
Description
Technical Field
The utility model relates to the technical field of wind driven generators, in particular to a blade lightning protection device of a wind driven generator.
Background
The blades of the wind generating set are arranged at the top of a high-rise tower barrel, and are extremely easy to be struck by lightning in thunderstorm weather, so that effective lightning protection measures must be adopted. The common lightning protection measure is to arrange lightning conductors among the blades, the hub and the tower, and the lightning current after the blades are successfully subjected to lightning connection passes through the hub and the underframe in sequence and finally is transmitted into the ground through the tower. On one hand, lightning current easily causes electric corrosion to the variable-pitch bearing, so that the variable-pitch bearing is damaged; on the other hand, the pitch movement exists between the blade and the hub, so that the lightning conductor is easy to be wound to cause damage, and the lightning protection measures are invalid. Therefore, the transmission path of the lightning current can be studied to avoid the variable pitch bearing, and the necessity of avoiding the problem that the lightning conductor is wound, damaged and broken is more urgent.
Disclosure of utility model
In order to overcome the defects in the prior art, the utility model provides a lightning protection device for fan blades of a wind driven generator, which aims to solve the problems in the prior art.
The utility model provides the following technical scheme: the blade lightning protection device of the wind driven generator comprises a lightning protection assembly, wherein the top of the lightning protection assembly is connected with a blade manhole cover plate, the bottom of the lightning protection assembly is connected with a hub, and the top of the hub is connected with a pressing assembly;
The lightning protection subassembly includes flexible spring, lightning protection jumper wire, the lightning protection jumper wire is located flexible spring's inboard, flexible spring's top fixedly connected with solid fixed ring, gu fixed ring's top fixedly connected with cylinder piece, the top fixedly connected with circular piece of cylinder piece, flexible spring's bottom fixedly connected with bolt subassembly, the bolt subassembly includes the fixed block, the bottom fixedly connected with cylinder pole of fixed block, the flexible groove has been seted up to the bottom of cylinder pole both sides, rectangular slot has been seted up at the top of cylinder pole both sides, the movable groove has been seted up at the top of flexible inslot, the movable groove is linked together with rectangular slot, the inboard fixedly connected with first spring of flexible slot, the other end fixedly connected with bolt pole of first spring, bolt pole and flexible slot activity cup joint, the top fixedly connected with connecting rod of bolt pole, the top fixedly connected with dead lever of connecting rod side, the dead lever is mutually adapted with rectangular slot.
Further, the top of blade manhole apron has seted up the cylinder hole, the inboard in cylinder hole is fixed to be cup jointed stainless steel bearing, the inboard of stainless steel bearing is fixed to be cup jointed with the outside of cylinder piece.
Furthermore, the outer side of the bolt rod far away from one end of the cylindrical rod is provided with an inclined chamfer.
Further, a latch groove is formed in the top of the hub, and fixing grooves are formed in two sides of the inner side of the latch groove.
Further, the latch groove is mutually matched with the cylindrical rod, and the fixing groove is mutually matched with the latch rod.
Further, the pressing component comprises an annular plate, a cylindrical pipe is fixedly connected to the periphery of the bottom of the annular plate, a second spring is fixedly connected to the inner side of the cylindrical pipe, a telescopic rod is fixedly connected to the other end of the second spring, the telescopic rod is movably sleeved with the cylindrical pipe, and the telescopic rod is fixedly connected with the outer side of the hub.
Further, the through hole is formed in the top of the annular plate, and the through hole is mutually matched with the lightning protection component.
Further, the both sides of annular plate bottom all fixedly connected with presses the pole, press the bottom of pole and the laminating of the top of dead lever.
The utility model has the technical effects and advantages that:
1. According to the utility model, the lightning protection assembly is arranged, when the wind power blade changes the pitch, the blade manhole cover plate rotates along with the blade, the cylindrical block can not rotate due to the arrangement of the stainless steel bearing, even if the cylindrical block rotates along with the blade manhole cover plate, the stress of the rotating torsion force is absorbed by the spring, and the unit fault shutdown caused by long-time swing abrasion and fracture can not occur.
2. According to the utility model, the lightning protection assembly is arranged, so that the lightning current transmission path is simple, and the pitch bearing is effectively avoided; the blade lightning conductor is fixed in the center position of the blade manhole cover plate, does not need to bear distortion, effectively prevents winding, and ensures the service life.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
FIG. 2 is a schematic view of a manhole cover plate structure of the present utility model.
Fig. 3 is a schematic view of the lightning protection component structure of the present utility model.
Fig. 4 is a schematic view of the lightning protection jumper structure of the present utility model.
FIG. 5 is a schematic view of a latch assembly according to the present utility model.
Fig. 6 is a schematic view of the structure of the expansion tank of the present utility model.
Fig. 7 is a schematic structural view of a pressing assembly according to the present utility model.
Fig. 8 is a schematic view of a second spring structure according to the present utility model.
Fig. 9 is a schematic view of the hub structure of the present utility model.
The reference numerals are: 1. a lightning protection component; 101. a flexible spring; 102. a fixing ring; 103. a cylindrical block; 104. a circular piece; 105. a plug pin assembly; 151. a fixed block; 152. a cylindrical rod; 153. a first spring; 154. a latch rod; 155. a connecting rod; 156. a fixed rod; 157. a telescopic slot; 158. a movable groove; 159. rectangular grooves; 106. lightning-proof jumper wires; 2. a blade manhole cover plate; 201. a cylindrical hole; 202. a stainless steel bearing; 3. a hub; 301. a latch slot; 302. a fixing groove; 4. a pressing assembly; 401. an annular plate; 411. a through hole; 402. a cylindrical tube; 421. a second spring; 403. a telescopic rod; 404. pressing the pressing rod.
Detailed Description
The embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the present utility model, and the configurations of the structures described in the following embodiments are merely examples, and the blade lightning protection device for a wind turbine according to the present utility model is not limited to the structures described in the following embodiments, and all other embodiments obtained by a person skilled in the art without any inventive effort are within the scope of the present utility model.
Referring to fig. 1-9, the utility model provides a blade lightning protection device of a wind driven generator, which comprises a lightning protection assembly 1, wherein the top of the lightning protection assembly 1 is connected with a blade manhole cover plate 2, the bottom of the lightning protection assembly 1 is connected with a hub 3, and the top of the hub 3 is connected with a pressing assembly 4;
The lightning protection assembly 1 comprises a flexible spring 101, lightning protection jumper wires 106, the lightning protection jumper wires 106 are located on the inner side of the flexible spring 101, a fixed ring 102 is fixedly connected to the top of the flexible spring 101, a cylindrical block 103 is fixedly connected to the top of the fixed ring 102, a round plate 104 is fixedly connected to the top of the cylindrical block 103, a bolt assembly 105 is fixedly connected to the bottom of the flexible spring 101, the bolt assembly 105 comprises a fixed block 151, a cylindrical rod 152 is fixedly connected to the bottom of the fixed block 151, telescopic slots 157 are formed in the bottoms of the two sides of the cylindrical rod 152, rectangular slots 159 are formed in the tops of the two sides of the cylindrical rod 152, movable slots 158 are formed in the tops of the inner sides of the telescopic slots 157, the movable slots 158 are communicated with the rectangular slots 159, a first spring 153 is fixedly connected to the inner sides of the telescopic slots 157, a bolt 154 is fixedly connected to the other end of the first spring 153, a bolt 154 is movably sleeved with the telescopic slots 157, a connecting rod 155 is fixedly connected to the top of the bolt 154, a fixing rod 156 is fixedly connected to the top of the side of the connecting rod 155, and the fixing rod 156 is mutually matched with the rectangular slots 159.
In the embodiment of the application, when the wind power blade changes the pitch, the blade manhole cover plate 2 rotates along with the blade, the cylindrical block 103 can not rotate due to the arrangement of the stainless steel bearing 202, even if the cylindrical block 103 rotates along with the blade manhole cover plate 2, the stress of the rotating torsion force is absorbed by the spring, and the machine set is not stopped due to long-time swing abrasion and fracture, the lightning current transmission path is simple, and the pitch bearing is effectively avoided; the blade lightning conductor is fixed in the central point department of blade manhole apron 2, need not bear the distortion, effectively prevented the winding, guaranteed life, when need install the bottom of lightning protection subassembly 1 on wheel hub 3, insert the inboard in latch groove 301 with cylinder pole 152, the inboard of fixed slot 302 is inserted to the latch pole 154 under the elasticity effect of first spring 153, accomplish the installation of lightning protection subassembly 1 bottom, and second spring 421 can produce decurrent pulling force to annular slab 401, thereby make press lever 404 press down dead lever 156, thereby make the bottom of cylinder pole 152 can closely laminate with the bottom of latch groove 301 inboard, avoid taking place to break away from.
In a preferred embodiment, a cylindrical hole 201 is formed in the top of the blade manhole cover plate 2, a stainless steel bearing 202 is fixedly sleeved on the inner side of the cylindrical hole 201, and the inner side of the stainless steel bearing 202 is fixedly sleeved on the outer side of the cylindrical block 103.
In a preferred embodiment, the outer side of the end of the latch rod 154 remote from the cylindrical rod 152 is beveled.
In a preferred embodiment, the top of the hub 3 is provided with a latch groove 301, and both sides of the inside of the latch groove 301 are provided with fixing grooves 302.
In a preferred embodiment, the latch slot 301 is interfitted with the cylindrical rod 152 and the retaining slot 302 is interfitted with the latch rod 154.
In a preferred embodiment, the pressing component 4 includes an annular plate 401, a cylindrical tube 402 is fixedly connected around the bottom of the annular plate 401, a second spring 421 is fixedly connected to the inner side of the cylindrical tube 402, a telescopic rod 403 is fixedly connected to the other end of the second spring 421, the telescopic rod 403 is movably sleeved with the cylindrical tube 402, and the telescopic rod 403 is fixedly connected to the outer side of the hub 3.
In a preferred embodiment, the top of the annular plate 401 is provided with a through hole 411, the through hole 411 being adapted to the lightning protection assembly 1.
In a preferred embodiment, pressing rods 404 are fixedly connected to both sides of the bottom of the annular plate 401, and the bottom of the pressing rods 404 is attached to the top of the fixing rods 156.
The working principle of the utility model is as follows: when the wind power blade changes the pitch, the blade manhole cover plate 2 rotates along with the blade, the cylindrical block 103 can not rotate due to the arrangement of the stainless steel bearing 202, even if the cylindrical block 103 rotates along with the blade manhole cover plate 2, the stress of the rotating torsion force is absorbed by the spring, and the machine set is not stopped due to long-time swing abrasion and fracture, the lightning current transmission path is simple, and the pitch bearing is effectively avoided; the blade lightning conductor is fixed in the central point department of blade manhole apron 2, need not bear the distortion, effectively prevented the winding, guaranteed life, when need install the bottom of lightning protection subassembly 1 on wheel hub 3, insert the inboard in latch groove 301 with cylinder pole 152, the inboard of fixed slot 302 is inserted to the latch pole 154 under the elasticity effect of first spring 153, accomplish the installation of lightning protection subassembly 1 bottom, and second spring 421 can produce decurrent pulling force to annular slab 401, thereby make press lever 404 press down dead lever 156, thereby make the bottom of cylinder pole 152 can closely laminate with the bottom of latch groove 301 inboard, avoid taking place to break away from.
Finally: the foregoing description of the preferred embodiments of the application is not intended to limit the application to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the application are intended to be included within the scope of the application.
Claims (8)
1. The utility model provides a wind-driven generator's flabellum lightning protection device, includes lightning protection subassembly (1), its characterized in that: the top of the lightning protection assembly (1) is connected with a blade manhole cover plate (2), the bottom of the lightning protection assembly (1) is connected with a hub (3), and the top of the hub (3) is connected with a pressing assembly (4);
the lightning protection assembly (1) comprises a flexible spring (101), a lightning protection jumper wire (106), the lightning protection jumper wire (106) is located the inboard of flexible spring (101), fixed ring (102) is fixedly connected with at the top of flexible spring (101), cylinder piece (103) is fixedly connected with at the top of fixed ring (102), circular piece (104) is fixedly connected with at the top of cylinder piece (103), the bottom fixedly connected with bolt subassembly (105) of flexible spring (101), bolt subassembly (105) include fixed block (151), the bottom fixedly connected with cylindrical rod (152) of fixed block (151), expansion groove (157) have been seted up to the bottom of cylindrical rod (152) both sides, rectangular slot (159) have been seted up at the top of cylindrical rod (152) both sides, movable groove (158) have been seted up at the top of expansion groove (157) inboard, movable groove (158) are linked together with rectangular slot (159), the inboard fixedly connected with first spring (153) of expansion groove (157), the other end fixedly connected with bolt subassembly (105), bolt (154) are connected with bolt (154) and expansion rod (154), the top of connecting rod (155) side fixedly connected with dead lever (156), dead lever (156) and rectangular groove (159) mutually support.
2. The lightning protection device for blades of a wind turbine of claim 1, wherein: the top of blade manhole apron (2) has seted up cylinder hole (201), stainless steel bearing (202) have been cup jointed in the inboard of cylinder hole (201), the inboard of stainless steel bearing (202) is fixed cup jointing with the outside of cylinder piece (103).
3. The lightning protection device for blades of a wind turbine of claim 1, wherein: the outer side of the bolt rod (154) far away from one end of the cylindrical rod (152) is provided with an inclined chamfer.
4. The lightning protection device for blades of a wind turbine of claim 1, wherein: the top of the hub (3) is provided with a latch groove (301), and both sides of the inner side of the latch groove (301) are provided with fixing grooves (302).
5. The lightning protection device for blades of a wind turbine of claim 4, wherein: the latch groove (301) is mutually matched with the cylindrical rod (152), and the fixing groove (302) is mutually matched with the latch rod (154).
6. The lightning protection device for blades of a wind turbine of claim 1, wherein: the pressing component (4) comprises an annular plate (401), a cylindrical pipe (402) is fixedly connected to the periphery of the bottom of the annular plate (401), a second spring (421) is fixedly connected to the inner side of the cylindrical pipe (402), a telescopic rod (403) is fixedly connected to the other end of the second spring (421), the telescopic rod (403) is movably sleeved with the cylindrical pipe (402), and the telescopic rod (403) is fixedly connected with the outer side of the hub (3).
7. The lightning protection device for blades of a wind turbine of claim 6, wherein: through holes (411) are formed in the tops of the annular plates (401), and the through holes (411) are mutually matched with the lightning protection components (1).
8. The lightning protection device for blades of a wind turbine of claim 6, wherein: both sides of annular plate (401) bottom all fixedly connected with presses pole (404), the bottom of pressing pole (404) is laminated with the top of dead lever (156).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322691236.1U CN220955930U (en) | 2023-10-08 | 2023-10-08 | Blade lightning protection device of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322691236.1U CN220955930U (en) | 2023-10-08 | 2023-10-08 | Blade lightning protection device of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220955930U true CN220955930U (en) | 2024-05-14 |
Family
ID=91021775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322691236.1U Active CN220955930U (en) | 2023-10-08 | 2023-10-08 | Blade lightning protection device of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220955930U (en) |
-
2023
- 2023-10-08 CN CN202322691236.1U patent/CN220955930U/en active Active
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