Device and method for monitoring bolt looseness of wind power generating set
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, stability assurance, and reliability improvement
Active Publication Date: 2021-05-25
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
Method used
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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 bolt loosening monitoring device for a wind power generating set, which includes more than one set of detection components, and each detection component includes a laser emitting component installed on a blade root bolt or a tower bolt of a wind power generating set and rotates synchronously with the bolts, The laser receiving component and multiple laser reflecting components; the laser emitting component emits laser light in a predetermined direction, and is reflected by multiple laser reflecting components in turn to form a detection optical path. The laser receiving component judges whether the bolt on the detection optical path is loose by whether it receives the laser light turn. The invention also discloses a monitoring method, which includes the following steps: S01. The laser emitting component emits laser light, which is reflected by each laser reflecting component in turn to form a detection optical path; S02. When the laser receiving component receives the laser light, it judges the detection light path The bolts are not loose; otherwise, the bolts are judged to be loose. The device and method for monitoring bolt looseness of a wind power generating set of the present invention have the advantages of timely detection, accuracy and reliability, and the like.
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