Wind generating set bolt looseness monitoring device and method
A technology for loosening of wind turbines and bolts, applied to measuring devices, instruments, etc., can solve problems such as blade drop, tower overturning, wind turbine loss, etc., and achieve the effects of easy installation, ensuring stability, and avoiding safety accidents
Active Publication Date: 2019-10-29
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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Problems solved by technology
The failure of the bolt connection of the wind turbine tower may cause the tower to overturn, and the failure of the blade root bolt connection may cause the blade to fall, causing serious losses to the wind turbine
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Embodiment Construction
[0055] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0056] Such as figure 1As shown, the bolt loosening monitoring device for wind power generators in this embodiment includes more than one set of detection components, each group of detection components includes a laser emitting assembly 1, a laser receiving assembly 2 and a plurality of laser reflection assemblies 3; wherein the laser emitting Component 1, laser receiving component 2 and multiple laser reflection components 3 are installed on the blade root bolts or tower bolts of the wind turbine and rotate synchronously with the bolts. The final detection component covers all blade root bolts or tower bolts of the wind turbine. The blade root bolts or the tower bolts are evenly distributed around the circumference; when the bolts are not loose, the laser emitted by the laser emitting assembly 1 along the initial direction is reflected by the ...
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The invention discloses a wind generating set bolt looseness monitoring device, which comprises more than one group of detection assemblies; each detection assembly comprises a laser emitting assembly, a laser receiving assembly and a plurality of laser reflecting assemblies which are arranged on a wind generating set blade root bolt or a tower bolt and synchronously rotate along with the bolt; the laser emitting assembly emits laser in a preset direction, the laser is sequentially reflected by the multiple laser reflecting assemblies to form a detection light path, and the laser receiving assembly judges whether a bolt on the detection light path is loosened or rotated or not according to whether the laser is received or not. The invention also discloses a monitoring method, which comprises the following steps: S01, the laser emitting assembly emits laser, and the laser is reflected by each laser reflecting assembly in sequence to form the detection light path; S02, when the laser receiving assembly receives the laser, it is judged that the bolt on the detection light path is not loosened; otherwise, it is judged that the bolt is loosened. The wind generating set bolt looseness monitoring device and method have the advantages of being timely, accurate, reliable and the like in detection.
Description
technical field [0001] The invention mainly relates to the technical field of wind power generation, in particular to a device and method for monitoring bolt looseness of a wind power generating set. Background technique [0002] Both the blade root bolted connection and the tower tube bolted connection of wind turbines are uniformly distributed on the circumference, and the failure mode of the bolted connection is usually the nut loosening or the nut falling off due to the breakage of the screw rod. The failure of the bolt connection of the wind turbine tower may cause the tower to overturn, and the failure of the blade root bolt connection may cause the blade to fall, causing serious losses to the wind turbine. Contents of the invention [0003] The technical problem to be solved by the present invention is that, aiming at the technical problems existing in the prior art, the present invention provides a bolt looseness monitoring device and method for a wind power genera...
Claims
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IPC IPC(8): G01D21/00
CPCG01D21/00
Inventor 廖戡武王磊李慧新蒋红武巫发明杨柳李小孟李音泉阮向艳谢玄
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST