CN213337705U - Resistance test auxiliary tool from blade tip of wind generating set to tower footing foundation ring - Google Patents
Resistance test auxiliary tool from blade tip of wind generating set to tower footing foundation ring Download PDFInfo
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- CN213337705U CN213337705U CN202020773221.3U CN202020773221U CN213337705U CN 213337705 U CN213337705 U CN 213337705U CN 202020773221 U CN202020773221 U CN 202020773221U CN 213337705 U CN213337705 U CN 213337705U
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- conductive splint
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Abstract
The utility model discloses a resistance test auxiliary fixtures of wind generating set blade apex to column foot foundation ring, including electrically conductive splint, the frame and the alarm of lifting by crane that can electrically conduct, electrically conductive splint have two to articulate respectively in the both sides of lifting by crane the frame, it lifts by crane the frame and hangs to blade apex department through outside hoisting accessory, the alarm is including the alarm main part that has the door magnetism and the supporting magnetic stripe of AND gate magnetism, and this alarm main part and the magnetic stripe that have the door magnetism are adorned respectively in two electrically conductive splint and are located two tip with one side, and magnetic stripe and alarm main part adsorb mutually when two electrically conductive splint's bottom contacted, insert between two electrically conductive splint and contact with two electrically conductive splint through the apex, and the alarm main part sends testable suggestion. The utility model discloses make wind generating set blade apex to the resistance test operation of column foot basis ring resistance simpler, the time is shorter, factor of safety is higher.
Description
Technical Field
The utility model belongs to the technical field of the technique of wind generating set blade lightning protection test and specifically relates to indicate a resistance test auxiliary fixtures of wind generating set blade apex to column footing foundation ring.
Background
The blade lightning protection system of the wind generating set mainly aims at avoiding damage of lightning to the fan. The blade lightning protection system consists of a blade tip lightning receptor, a blade leaf lightning receptor and an internal down conductor. The lightning is caught to the blade arrester, passes to earthing device through the downlead system with the lightning current through blade drainage route and releases, avoids the lightning current can not in time let out and scatters the damage that causes the fan. Influence of induction lightning on internal equipment and lines is avoided through shielding, equipotential, comprehensive wiring and a surge protector.
In practice, because the structural design of blade, personnel can't reach apex arrester department position, and the unit blade after the hoist and mount operation and wheel hub lightning protection ground connection inspection then need utilize wind-powered electricity generation maintenance hoisting device (hanging flower basket) for the people to tie up the earth connection in apex arrester department position, retest ground resistance. At present, the test method is difficult to operate, high in production cost, high in safety risk and long in time consumption.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provides a resistance test auxiliary fixtures of wind generating set blade apex to column foot basis ring resistance, makes the resistance test operation of wind generating set blade apex to column foot basis ring resistance simpler, the time is shorter, factor of safety is higher.
In order to achieve the above object, the present invention provides a technical solution: the auxiliary resistance testing tool comprises two conductive clamping plates, a lifting frame and an alarm, wherein the lifting frame and the alarm can conduct electricity, the two conductive clamping plates are hinged to two sides of the lifting frame respectively, the lifting frame is lifted to the blade tip through an external lifting device, the alarm comprises an alarm main body with a door magnet and a magnetic strip matched with the door magnet, the alarm main body with the door magnet and the magnetic strip are installed on two end portions of the two conductive clamping plates on the same side respectively, the magnetic strip and the alarm main body are adsorbed when the bottoms of the two conductive clamping plates are contacted, the magnetic strip and the alarm main body are inserted between the two conductive clamping plates through the blade tip and are contacted with the two conductive clamping plates, and the alarm main body sends out a prompt that the blade tip is contacted with the conductive clamping plates.
Further, electrically conductive splint include reinforcing bar, current conducting plate, aluminum plate and alarm mounting panel, the reinforcing bar is articulated to lifting by crane on the frame, aluminum plate passes through the current conducting plate and fixes to the reinforcing bar on, the alarm mounting panel is fixed in aluminum plate's tip.
Compared with the prior art, the utility model, have following advantage and beneficial effect:
adopt the utility model discloses carry out resistance test to blade apex to column foot basis ring resistance, easy operation, test time is short, the expense is low, and has improved on-the-spot tester's factor of safety greatly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the conductive splint of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
As shown in fig. 1 to 2, the auxiliary fixture for testing the resistance of the wind turbine generator system from the blade tip to the tower footing base ring includes a conductive clamp plate 1, a conductive lifting frame 2 and an alarm; the number of the conductive clamping plates 1 is two, and the conductive clamping plates 1 are respectively hinged to two sides of the lifting frame 2, wherein each conductive clamping plate 1 comprises a steel bar 201, a conductive plate 202, an aluminum plate 203 and an alarm mounting plate 204, the steel bar 201 is hinged to the lifting frame 2, the aluminum plate 203 is fixed to the steel bar 201 through the conductive plate 202, and the alarm mounting plate 204 is fixed to the end part of the aluminum plate 203; the lifting frame 2 is lifted to the blade tip through an external lifting device (wind rope); the alarm comprises an alarm main body 3 with a door magnet and a magnetic strip 4 matched with the door magnet, wherein the alarm main body 3 with the door magnet and the magnetic strip 4 are respectively arranged on two alarm mounting plates 204 of which the two conductive clamping plates 1 are positioned on the same side, and the alarm main body 3 and the magnetic strip 4 are adsorbed when the bottoms of the two conductive clamping plates 1 are contacted; insert between two electrically conductive splint 1 and contact with two electrically conductive splint 1 through the apex, separation alarm main part 3 and magnetic stripe 4 simultaneously, alarm main part 3 sends out alarm + warning light double-alarm to remind on-the-spot tester apex and the good suggestion of electrically conductive splint 1 contact.
When the test auxiliary tool is used, the test auxiliary tool is connected with the handheld direct-current low-resistance tester by using a lead, and a resistance value R1 is read, wherein the resistance value R1 is the sum of the resistance values of the test auxiliary tool and the external lead; then connecting one end of the test auxiliary tool, which is in contact with the blade tip lightning receptor, with a handheld direct-current low-resistance tester through a lead with enough length, connecting the handheld direct-current low-resistance tester to a tower footing foundation ring of the wind generating set through the lead, lifting the auxiliary tool to the blade tip through a wind rope, when the blade tip is inserted between the two conductive clamping plates 1 and is in contact with the two conductive clamping plates 1, sending out an alarm and an alarm lamp by the alarm main body 3 to remind a field tester of good contact between the blade tip and the conductive clamping plates 1, and opening the handheld direct-current low-resistance tester by the field tester at the moment and reading out a resistance value R2; and finally, obtaining the resistance value of the blade lightning protection system according to a formula of the resistance value R of the blade lightning protection system, namely the resistance value R2-R1.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that all the changes made according to the shape and principle of the present invention should be covered within the protection scope of the present invention.
Claims (2)
1. Resistance test auxiliary fixtures of wind generating set blade apex to column foot foundation ring, its characterized in that: including electrically conductive splint, the frame and the alarm of lifting by crane that can electrically conduct, electrically conductive splint have two to articulate respectively in the both sides of lifting by crane the frame, it lifts by crane the frame and hangs to blade leaf point department through outside hoisting accessory, the alarm is including the alarm main part that has the door magnetism and the supporting magnetic stripe of AND gate magnetism, and this alarm main part and magnetic stripe that have the door magnetism adorn respectively on two electrically conductive splint lie in two tip with one side, and magnetic stripe and alarm main part adsorb mutually when two electrically conductive splint's bottom contacted, insert between two electrically conductive splint and contact with two electrically conductive splint through the apex, and the suggestion of apex and electrically conductive splint contact is sent to the alarm main part.
2. The auxiliary resistance testing tool for the wind generating set blade tip to tower footing foundation ring as claimed in claim 1, is characterized in that: electrically conductive splint include reinforcing bar, current conducting plate, aluminum plate and alarm mounting panel, the reinforcing bar is articulated to lifting by crane on the frame, aluminum plate passes through the current conducting plate and fixes to the reinforcing bar on, the alarm mounting panel is fixed in aluminum plate's tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020773221.3U CN213337705U (en) | 2020-05-12 | 2020-05-12 | Resistance test auxiliary tool from blade tip of wind generating set to tower footing foundation ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020773221.3U CN213337705U (en) | 2020-05-12 | 2020-05-12 | Resistance test auxiliary tool from blade tip of wind generating set to tower footing foundation ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213337705U true CN213337705U (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020773221.3U Active CN213337705U (en) | 2020-05-12 | 2020-05-12 | Resistance test auxiliary tool from blade tip of wind generating set to tower footing foundation ring |
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| CN (1) | CN213337705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116766137A (en) * | 2023-08-25 | 2023-09-19 | 菏泽天盈新能源有限公司 | Test fixture of wind driven generator |
-
2020
- 2020-05-12 CN CN202020773221.3U patent/CN213337705U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116766137A (en) * | 2023-08-25 | 2023-09-19 | 菏泽天盈新能源有限公司 | Test fixture of wind driven generator |
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