CN108490500B - Bolt anti-falling device - Google Patents

Bolt anti-falling device Download PDF

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Publication number
CN108490500B
CN108490500B CN201810502442.4A CN201810502442A CN108490500B CN 108490500 B CN108490500 B CN 108490500B CN 201810502442 A CN201810502442 A CN 201810502442A CN 108490500 B CN108490500 B CN 108490500B
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CN
China
Prior art keywords
bolt
protective cover
primary
sleeve
signal
Prior art date
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Application number
CN201810502442.4A
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Chinese (zh)
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CN108490500A (en
Inventor
杨炎钢
田丰
吴晓鹏
彭国谱
唐伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XEMC Windpower Co Ltd
Original Assignee
XEMC Windpower Co Ltd
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Publication date
Application filed by XEMC Windpower Co Ltd filed Critical XEMC Windpower Co Ltd
Priority to CN201810502442.4A priority Critical patent/CN108490500B/en
Publication of CN108490500A publication Critical patent/CN108490500A/en
Application granted granted Critical
Publication of CN108490500B publication Critical patent/CN108490500B/en
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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V9/00Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B35/00Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B41/00Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins

Abstract

The invention relates to a bolt anti-falling device which comprises a bolt protective cover and a signal wire, wherein a screw rod of a bolt pair penetrates through a through hole in the upper part of the inner surface of the bolt protective cover, the lower part of the inner surface of the bolt protective cover is clamped on the outer surface of a nut of the bolt pair, the signal wire is sequentially attached to the surfaces of adjacent bolt protective covers and connected in series to form a closed loop to be connected with a fan monitoring system, and when the signal wire is disconnected, the fan monitoring system sends out a bolt abnormity alarm. According to the invention, the protective cover is arranged on the screwed nut, and then the end of the protective cover is connected with the communication wire part, so that the bolt group of the whole flange surface forms a loop and then is connected into a remote monitoring system of the fan. If the bolt loosens or the bolt drops, the communication wire can be interrupted, and the remote monitoring system can give an alarm in time. And the broken bolt is not damaged secondarily because the primary and secondary lantern ring rings of the protective cover are connected. The device has the advantages of simple structure, low cost and easy maintenance. The manual patrol inspection is avoided, and the maintenance level is greatly improved.

Description

Bolt anti-falling device
Technical Field
The invention relates to a bolt anti-falling device.
Background
For the blade bolts and the like on the end face of a fan hub, which are screwed in the revolving body, once the bolts are broken, the broken bolts turn over in the hub, and serious secondary damage is caused to parts in the hub. And can not be found without boarding inspection. At present, the anti-falling device is not available in the market, and the bolt can be found only by the inspection of a fan on service personnel after being broken.
Disclosure of Invention
The invention aims to overcome the defects and provide the bolt anti-falling device which is simple in structure, safe and reliable.
In order to achieve the purpose, the invention adopts the technical scheme that: a bolt anti-falling device comprises a bolt shield and a signal wire, wherein a screw of a bolt pair penetrates through a through hole in the upper portion of the inner surface of the bolt shield, the lower portion of the inner surface of the bolt shield is clamped on the outer surface of a nut of the bolt pair, the signal wire is sequentially attached to the surfaces of adjacent bolt shields and connected in series to form a closed loop to be connected with a fan monitoring system, and when the signal wire is disconnected, the fan monitoring system sends out a bolt abnormity alarm.
Preferably, the bolt guard is made of an insulating elastic material.
Preferably, the signal conductor is embedded in the bolt shield.
Preferably, the two sides of the bolt shield are provided with primary and secondary sleeve joints, and the secondary sleeve end of the primary and secondary sleeve joints is non-telescopic and is internally provided with a signal wire connector; the primary sleeve end of the primary and secondary sleeve joint is a telescopic sleeve, the end part of the primary sleeve end is provided with a signal conductor extending end, one end of the signal conductor is connected with the signal conductor connector, the other end of the signal conductor penetrates through the primary sleeve end of the primary and secondary sleeve joint to be connected with the extending end of the signal conductor, the extending end of the signal conductor is inserted into the connecting port of the adjacent signal conductor, and the signal conductors are sequentially connected in series to form a closed loop to be connected with the fan monitoring system.
Preferably, in order to improve the strength of the connection of the primary and secondary sleeves, the primary and secondary sleeves are of a buckle structure.
Preferably, in order to ensure signal sensitivity, the connecting port and the extending end of the signal wire are in an earphone inserting structure, and the inserting depth is not more than 5 mm.
The beneficial technical effects of the invention are as follows: the protective cover is arranged on the screwed nut, and then the protective cover is connected with the communication wire part end to end, so that the bolt group of the whole flange surface forms a loop and then is connected into a remote monitoring system of the fan. If the bolt loosens or the bolt drops, the communication wire can be interrupted, and the remote monitoring system can give an alarm in time. And the broken bolt is not damaged secondarily because the primary and secondary lantern ring rings of the protective cover are connected. The device has the advantages of simple structure, low cost and easy maintenance. The manual patrol inspection is avoided, and the maintenance level is greatly improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the connection between adjacent bolt pairs according to the embodiment of the present invention;
fig. 3 is a schematic diagram of the operation of the embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to the attached drawings, the bolt anti-falling device comprises a bolt shield 1 and signal wires 2, wherein a screw 3 of a bolt pair penetrates through a through hole in the upper portion of the inner surface of the bolt shield 1, the lower portion of the inner surface of the bolt shield 1 is clamped on the outer surface of a nut 4 of the bolt pair, the signal wires 2 are sequentially attached to the surfaces of adjacent bolt shields 1 and are connected in series to form a closed loop to be connected with a fan monitoring system, when the signal wires 2 are disconnected, the fan monitoring system sends out abnormal bolt alarm, the bolt shield 1 is made of an insulating elastic material, the signal wires 2 are embedded in the bolt shield 1, primary and secondary sleeve joints are arranged on two sides of the bolt shield 1, and a secondary sleeve end 1-1 of each primary and secondary sleeve joint is non-telescopic and is internally provided with a signal wire 2 connecting; the primary sleeve end 1-2 of the primary and secondary sleeve joint is a telescopic sleeve, the end portion of the primary sleeve end 1-2 is provided with a signal conductor 2 extending end, one end of the signal conductor 2 is connected with a signal conductor 2 connector, the other end of the signal conductor 2 penetrates through the telescopic primary sleeve end 1-2 to be connected with the extending end of the signal conductor 2, the extending end of the signal conductor 2 is inserted into a connecting port of the adjacent signal conductor 2, the signal conductors 2 are sequentially connected in series to form a closed loop to be connected with a fan monitoring system, in order to improve the connection strength of the primary and secondary sleeves, the primary and secondary sleeves are of a buckle structure, in order to ensure the signal sensitivity, the connector and the extending end of the signal conductor 2 are of an earphone plug-in structure, and the inserting depth is.
The working process of the embodiment of the invention is to sleeve the whole circle of nuts 4 through the protective cover 1 and connect the signal wires 2 to form a closed loop. The closed-loop terminal is monitored by a computer, if the bolt is loosened or falls off, the communication signal wire 2 can be interrupted, and the remote end can forecast in time. And the broken bolt is connected with the primary and secondary lantern ring of the protective cover 1, so that the secondary damage caused by falling can be avoided. The device has the advantages of simple structure, low cost and easy maintenance. The manual patrol inspection is avoided, and the maintenance level is greatly improved.
The present invention is not limited to the above-described embodiments, and configurations similar to or the same as those of the above-described embodiments of the present invention are within the scope of the present invention.

Claims (3)

1. A bolt anti-falling device is characterized by comprising a bolt protective cover and a signal wire, wherein a screw rod of a bolt pair penetrates through a through hole in the upper part of the inner surface of the bolt protective cover, the lower part of the inner surface of the bolt protective cover is clamped on the outer surface of a nut of the bolt pair, the bolt protective cover is made of an insulating elastic material, the signal wire is embedded in the bolt protective cover, primary and secondary sleeve joints are arranged on two sides of the bolt protective cover, and a secondary sleeve end of the primary and secondary sleeve joints is non-telescopic and is internally provided with a signal wire connecting port; the primary sleeve end of the primary and secondary sleeve joint is a telescopic sleeve, the end part of the primary sleeve end is provided with a signal conductor extending end, one end of the signal conductor is connected with a signal conductor connecting port, the other end of the signal conductor penetrates through the primary sleeve end of the primary and secondary sleeve joint and is connected with the extending end of the signal conductor, the extending end of the signal conductor is inserted into a connecting port of an adjacent signal conductor, the signal conductors are sequentially connected in series and form a closed loop to be connected with a fan monitoring system, and when the signal conductor is disconnected, the fan monitoring system sends out bolt abnormity alarm.
2. The bolt fall prevention device of claim 1, wherein the primary and secondary sleeves are snap structures.
3. The bolt fall preventing device according to claim 1, wherein the connecting port and the protruding end of the signal wire are in a headphone insertion structure, and the insertion depth is not more than 5 mm.
CN201810502442.4A 2018-05-23 2018-05-23 Bolt anti-falling device Active CN108490500B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810502442.4A CN108490500B (en) 2018-05-23 2018-05-23 Bolt anti-falling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810502442.4A CN108490500B (en) 2018-05-23 2018-05-23 Bolt anti-falling device

Publications (2)

Publication Number Publication Date
CN108490500A CN108490500A (en) 2018-09-04
CN108490500B true CN108490500B (en) 2020-05-15

Family

ID=63351958

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810502442.4A Active CN108490500B (en) 2018-05-23 2018-05-23 Bolt anti-falling device

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CN (1) CN108490500B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110068665A (en) * 2019-04-22 2019-07-30 云南电力技术有限责任公司 The detection device and method of a kind of wind-driven generator, bolt defect
CN110778463A (en) * 2019-09-17 2020-02-11 东方电气风电有限公司 Fan blade bolt fracture monitoring and protecting method and device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100554999C (en) * 2005-11-28 2009-10-28 中国科学院地质与地球物理研究所 A kind of multipoint engineering structural crack state monitoring device and method thereof
CN203299994U (en) * 2013-05-29 2013-11-20 魏开 Monitoring device for preventing screw loosening
CN105986963B (en) * 2015-02-11 2019-08-20 赤峰华源新力科技有限公司 The connection bolt looseness of Wind turbines monitors system
CN104851246B (en) * 2015-05-26 2017-03-22 重庆大学 Device used to monitor bolt fracture or looseness
CN106054263A (en) * 2016-08-22 2016-10-26 杨志强 Screw loosening monitoring device and system
CN107678069B (en) * 2017-08-01 2019-09-03 国网浙江省电力公司嘉兴供电公司 A kind of GIS device flange installation accurate positioning method and its alarming device used

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