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Method and system for detecting looseness of bolts in wind driven generator, equipment and medium

A technology of wind power generator and detection method, which is applied in the monitoring of wind power generators, wind power generators, mechanical equipment, etc., to achieve the effect of low cost, simple setting and high value

Inactive Publication Date: 2020-07-28
SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a detection method, system and equipment for bolt looseness in wind power generators in order to overcome the defect that the detection of bolt looseness in wind power generators cannot take into account high efficiency, convenience and low cost in the prior art and media

Method used

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  • Method and system for detecting looseness of bolts in wind driven generator, equipment and medium
  • Method and system for detecting looseness of bolts in wind driven generator, equipment and medium
  • Method and system for detecting looseness of bolts in wind driven generator, equipment and medium

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Effect test

Embodiment 1

[0051] This embodiment provides a method for detecting bolt looseness in a wind power generator, figure 1 A schematic diagram showing the bolt mounting locations, such as figure 1 As shown, the wind power generator in this embodiment includes a plurality of bolts 10 arranged on the tower connecting layer 11, each bolt 10 and the tower connecting layer 11 have a preset mark 12 at a fixed position, and the preset mark 12 Including the first part and the second part, the first part is located on the bolt 10, and the second part is located on the tower connecting layer 11. When the bolt 10 is not loose, the preset mark 12 in the bolt detection image taken will not be displaced. In the embodiment, it is specifically embodied that the end positions of the first part and the second part are connected. Such as figure 2 As shown, the detection method in the present embodiment comprises:

[0052] Step 101, taking a bolt detection image for the bolt.

[0053] Step 102 , judging whet...

Embodiment 2

[0070] This embodiment provides a detection system for loose bolts in wind power generators, figure 1 A schematic diagram showing the bolt mounting locations, such as figure 1 As shown, the wind power generator in this embodiment includes a plurality of bolts 10 arranged on the tower connection layer 11, and each bolt 10 has a continuous preset mark 12 at a fixed position with the tower connection layer 11. Assuming that the mark 12 includes a first part and a second part, the first part is located on the bolt 10, and the second part is located on the tower connection layer 11. When the bolt 10 is not loose, the preset mark 12 will not appear in the bolt detection image taken Displacement, in this embodiment, is embodied in the connection between the ends of the first part and the second part. Such as Figure 5 As shown, the detection system includes: a bolt photographing module 201 , a loosening judgment module 202 and an alarm module 203 .

[0071] The bolt photographing ...

Embodiment 3

[0084] This embodiment provides an electronic device, which can be expressed in the form of a computing device (for example, it can be a server device), including a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the processor The bolt detection method in Embodiment 1 can be realized when the computer program is executed.

[0085] Figure 6 A schematic diagram of the hardware structure of this embodiment is shown, as Figure 6 As shown, the electronic device 9 specifically includes:

[0086] At least one processor 91, at least one memory 92, and a bus 93 for connecting different system components, including the processor 91 and the memory 92, wherein:

[0087] The bus 93 includes a data bus, an address bus, and a control bus.

[0088] The memory 92 includes a volatile memory, such as a random access memory (RAM) 921 and / or a cache memory 922 , and may further include a read only memory (ROM) 923 .

[0089] Memory 92 a...

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Abstract

The invention discloses a method and a system for detecting looseness of bolts in a wind driven generator, equipment and a medium. The wind driven generator comprises a plurality of bolts arranged ona tower drum connecting layer, and a preset mark is arranged at the fixing position of each bolt and the tower drum connecting layer. The detection method comprises the steps that a bolt detection image is shot for the bolts; and whether each mark in the bolt detection image is displaced or not, and if yes, it is determined that the bolt corresponding to the mark is loosened. According to the detection method provided by the invention, whether each bolt is loosened or not can be quickly and effectively detected by judging whether the preset mark at the fixing position of each bolt and the tower drum connecting layer is displaced or not. The detection method is simple in setting and high in practicability, whether a large number of bolts are loosened or not can be efficiently detected, themanufacturing cost of related equipment is low, cost can be saved for users, higher value is created, and actual requirements are met.

Description

technical field [0001] The invention relates to the field of wind power generators, in particular to a method, system, equipment and medium for detecting loose bolts in wind power generators. Background technique [0002] At present, some methods have been proposed for monitoring the health of bolts installed in wind turbines. Mingyang Wisdom Energy Group Co., Ltd. proposed a fan blade root bolt fracture monitoring device (public number is CN208416813U). The device is installed on the hub web of the fan through screws, fixed together with the hub web, and close to the corresponding blade root bolts. It is used to monitor the nuts installed on the top of the blade root bolts and generate a switch signal that is transmitted to the main control of the fan. The system records that the proximity switch sensor will generate a switch value signal every time a nut passes through during pitch change, and the main control system will judge whether any blade root bolts have broken acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/02F03D17/00
CPCF03D17/00G01B11/02
Inventor 王蓓许王建
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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