CN207601225U - A kind of device using gap discharge acquisition electromagnetic wave - Google Patents

A kind of device using gap discharge acquisition electromagnetic wave Download PDF

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Publication number
CN207601225U
CN207601225U CN201721054661.8U CN201721054661U CN207601225U CN 207601225 U CN207601225 U CN 207601225U CN 201721054661 U CN201721054661 U CN 201721054661U CN 207601225 U CN207601225 U CN 207601225U
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China
Prior art keywords
contact pilotage
gear
connect
gap discharge
frequency amplifier
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CN201721054661.8U
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Chinese (zh)
Inventor
陈黎
陈金华
陈伟
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Cheng Shu Electricity Group Co Ltd
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Cheng Shu Electricity Group Co Ltd
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Abstract

The utility model discloses a kind of device using gap discharge acquisition electromagnetic wave, including detection probe, reception antenna, input circuit, frequency changer circuit, intermediate frequency amplifier, wave detector, audio-frequency amplifier and power amplifier;Detection probe includes observation chamber, and observation intracavitary is provided with spray point, and spray point gap discharge generates electromagnetic interference signal under hyperbaric environment, and reception antenna is used to receive the electromagnetic interference signal of discharging gap generation;Reception antenna is connect with input circuit, and input circuit is connect with frequency changer circuit, and frequency changer circuit is connect with intermediate frequency amplifier, and intermediate frequency amplifier is connect with wave detector, and wave detector is connect with audio-frequency amplifier, and audio-frequency amplifier is connect with power amplifier.The utility model, because electromagnetic interference is along with gap discharge while is generated, so detecting electromagnetic interference, is capable of detecting when zero resistance insulator by the electromagnetic interference signal during acquiring discharging gap and amplification.

Description

A kind of device using gap discharge acquisition electromagnetic wave
Technical field
The utility model is related to power grid detection technique field more particularly to a kind of dresses using gap discharge acquisition electromagnetic wave It puts.
Background technology
Insulator is chiefly used on ultra-high-tension power transmission line wire pole tower, for insulating and increasing creepage distance, in overhead power transmission It plays an important role in circuit.Insulator is insulated due to environmental change reduces failure, becomes invisible defect, threatens operation of power networks Safety.And traditional method is time-consuming and laborious using artificial detection insulator.With the development of unmanned air vehicle technique, also some producers at present And R&D institution develops the UAV system for being applied to transmission line of electricity, most of is all to patrolling transmission line, is gone back It can not carry out detecting zero resistance insulator, traditional zero resistance insulator testing cost is high.
In conventional zero resistance insulator detection process, the acquisition solution of sound that discharging gap generates is limited by The interference of environmental noise, such as the sound of unmanned plane during flying rotor.The application is not using traditional sound collection way, by dividing Analysis acquires the electromagnetic interference signal during discharging gap using radio receiver signal record principle.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of utilization gap discharge and acquire electromagnetic wave Device, by acquiring electromagnetic interference signal and amplification during discharging gap, achieved the purpose that judge zero resistance insulator.
The purpose of this utility model is achieved through the following technical solutions:It is a kind of to acquire electromagnetic wave using gap discharge Device, including:Detection probe, reception antenna, input circuit, frequency changer circuit, intermediate frequency amplifier, wave detector, audio-frequency amplifier And power amplifier;The detection probe includes observation chamber, observation intracavitary is provided with spray point, the spray point under hyperbaric environment Gap discharge generates electromagnetic interference signal, and the reception antenna is used to receive the electromagnetic interference signal of discharging gap generation;Institute The reception antenna and the input terminal of input circuit stated connect, and the output terminal of input circuit and the input terminal of frequency changer circuit connect, and become The output terminal of frequency circuit and the input terminal of intermediate frequency amplifier connect, and the output terminal of intermediate frequency amplifier and the input terminal of wave detector connect Connect, the input terminal of the output terminal of wave detector and audio-frequency amplifier connects, the output terminal of audio-frequency amplifier and power amplifier it is defeated Enter end connection.
The detection probe includes:Pedestal, rotating disk, first gear and spy contact pilotage;The spy contact pilotage is on the rotating pan; The rotating disk is connect with first gear, and first gear is connect with transmission device, under the gearing of transmission device, rotating disk And the spy contact pilotage of setting on the rotating pan being capable of 360 degree rotation;The spray point electrically connects in chamber is observed and with visiting contact pilotage It connects.
The transmission device includes motor, and motor is connected with second gear.
The motor includes Telescopic motor and spinfunction motor, and the front and rear shifting of contact pilotage is visited in the control of Telescopic motor Dynamic, the adjustment of spinfunction motor visits contact pilotage and visits feeler degree.
It in above technical scheme, further includes and visits contact pilotage and insulating bar, visit contact pilotage and be located in detection probe, insulating bar and inspection Probing head connects.
The spy contact pilotage includes rear end part and fore-end, and the fore-end is in class U-shaped;When in use when When the fore-end of the spy contact pilotage blocks insulator, top clamping insulator is received automatically by the effect of contact force.
The insulating bar is hollow insulating bar, and the second insulating bar is nested in hollow insulating bar;In the connector of insulating bar Place is provided with second gear, and second gear is engaged with first gear, for first gear to be driven to rotate.
The beneficial effects of the utility model are:
(1)The utility model utilizes radio antenna signal record principle, acquires gap discharge process under hyperbaric environment In electromagnetic interference signal, and pass through frequency conversion, intermediate frequency amplification, detection and enhanced processing, done in back-end realization by detecting electromagnetism Signal is disturbed to judge zero resistance insulator, can substitute and traditional doing for gap discharge sound directly be acquired using sound transducer Method;
(2)The utility model detection sensitivity is high, easy to use, portable;
(3)The detection probe of the utility model can be with 360 degree rotation, in transmission line of electricity, and a large amount of insulator presentation is not advised Then position, angular distribution can meet different test environments by the rotation of detection probe, unmanned plane avoided to do in the detection Compound action reduces technical difficulty, improves practicability.
Description of the drawings
Fig. 1 is the circuit structure block diagram of the utility model.
Fig. 2 is the detection probe structure diagram of the utility model.
In figure, 100- visits contact pilotage, and 101- visits the fore-end of contact pilotage, and 102- visits the rear end part of contact pilotage, the first teeth of 411- Wheel, 202- second gears, 301- swivel bearings, 111- observation chambers, the first spray points of 211-, the second spray points of 212-, 311- the One conducting wire, the second conducting wires of 312-, 412- privates, 511- first visit stylus contact point, and 512- second visits stylus contact point, 611- thirds visit stylus contact point, and 612- the 4th visits stylus contact point, 711- privates, 811- shafts, 911- cover boards, 912- Rotating disk, 100A- first visit contact pilotage, and 100B- second visits contact pilotage.
Specific embodiment
The technical solution of the utility model, but the scope of protection of the utility model are described in further detail below in conjunction with the accompanying drawings It is not limited to as described below.
Embodiment one
As shown in Figure 1, a kind of device using gap discharge acquisition electromagnetic wave, including:It is detection probe, reception antenna, defeated Enter circuit, frequency changer circuit, intermediate frequency amplifier, wave detector, audio-frequency amplifier and power amplifier;The detection probe includes observation Chamber 111 is provided with spray point in observation chamber 111, and spray point gap discharge generates electromagnetic interference signal, institute under hyperbaric environment The reception antenna stated is used to receive the electromagnetic interference signal of discharging gap generation;The input of the reception antenna and input circuit The input terminal of end connection, the output terminal of input circuit and frequency changer circuit connects, the output terminal of frequency changer circuit and intermediate frequency amplifier Input terminal connects, and the output terminal of intermediate frequency amplifier and the input terminal of wave detector connect, the output terminal and audio-frequency amplifier of wave detector Input terminal connection, the input terminal of the output terminal of audio-frequency amplifier and power amplifier connects.
The detection probe includes:Pedestal, rotating disk 912, first gear 411 and spy contact pilotage;The spy contact pilotage is revolving On turntable 912;The rotating disk 912 is connect with first gear 411, and first gear 411 is connect with transmission device, in transmission device Gearing under, rotating disk 912 and the spy contact pilotage being arranged in rotating disk 912 being capable of 360 degree rotations;The spray point In chamber 111 is observed, and with visiting contact pilotage electrical connection.
The transmission device includes motor, and motor and second gear 202 connect.
The motor includes Telescopic motor and spinfunction motor, and the front and rear shifting of contact pilotage is visited in the control of Telescopic motor Dynamic, the adjustment of spinfunction motor visits contact pilotage and visits feeler degree.
It in above technical scheme, further includes and visits contact pilotage and insulating bar, visit contact pilotage and be located in detection probe, insulating bar and inspection Probing head connects.
The spy contact pilotage includes rear end part 102 and fore-end 101, rear end part 102 and fore-end 101, institute The fore-end 101 stated is in class U-shaped;When in use when the fore-end 101 of the spy contact pilotage blocks insulator, by contact Top clamping insulator is received in the effect of power automatically.
The insulating bar is hollow insulating bar, in hollow insulating bar, nested second insulating bar;In the connector of insulating bar Place is provided with second gear 202, and second gear 202 is engaged with first gear 411, for first gear 411 to be driven to rotate.
In the present embodiment, 401 junction portion of detection probe and insulating bar, the detection probe include pedestal and rotating disk 912, pedestal and 401 bars of insulation are reliably connected and fix, and discharging gap and observation chamber 111 are mounted on pedestal and consolidate there are one metal Dead axle, in rotating disk 912 and gear mounting shaft and rotatable, rotary shaft is fixed with first gear 411 and is rotated together, first gear 411 are used as transmission gear, are engaged with the second gear 202 on loop bar in insulating bar, and second gear 202 is used as drive gear.Rotation 912 front of turntable, which is equipped with, visits contact pilotage 100, and visit contact pilotage 100 has reliable electric to connect with the discharging gap on pedestal, it is ensured that visits and touches When needle 100 obtains voltage, the electric discharge needle-discharging on discharging gap, when to isolator detecting, unmanned plane chooses position to be measured, The angle of detection needle 100 is adjusted, insulating bar stretches forward, pushes probe to insulator and will visit on contact pilotage 100 and insulator Lower both ends metal portion tap is real, and the insulator at this moment to discharge is normal insulation.In the present embodiment, in insulating bar again Piece insulating bar of inner sleeve, i.e. the first insulating bar, the first insulating bar are hollow insulating bar.Why the present invention is in hollow insulating bar Interior, nested second insulating bar is to connect transmission device, such as motor in one end of the second insulating bar.Meanwhile the transmission fills It puts and is connect with second gear 411, a micromachine is set, the transmission device of the second insulating bar of driving drives second gear 411 Rotation rotating disk 912 to be driven to rotate or stretch, provides and visits contact pilotage rotation or flexible required power.Using mechanical gear When driving rotating disk 912, further include and be provided with chain, use micromachine(Including electric rotating machine and telescope motor)Driving During rotating disk 912, it is additionally provided with corresponding battery.Those skilled in the art, it is also an option that the motion control of unmanned machine equipment Driving interface driving second gear 411 etc..
In the present embodiment, as shown in Fig. 2, spray point(First spray point 211, the second spray point 212)With visiting contact pilotage 100 (First visits contact pilotage 100A, and second visits contact pilotage 100B)Electrical connection, can be designed as copper conductor connection.The setting position of copper conductor It puts and is determined with form according to the needs of actual device, if for example, carrying out insulator survey using UAV flight's the utility model Examination, then have strict requirements to the weight of device.First, which visits contact pilotage 100A, is included there are two connection end point, wherein, the first connection Endpoint is connected to the first of rotating disk 912 and visits stylus contact point 511, and second connection end point is connected to the second spy of rotating disk 912 Stylus contact point 512;Second, which visits contact pilotage 100B, is included there are two connection end point, wherein, the first connection end point is connected to rotating disk 912 third visits stylus contact point 611, and second connection end point is connected to the 4th spy stylus contact point 612 of rotating disk 912, solely Special spy contact pilotage design is prevented in working at height, is visited the problem of contact pilotage is difficult to that target insulator is accurately positioned, is reduced dress Weight is put, alleviates burden of the staff to quasi-insulator.When visiting stylus contact to insulator both ends to be measured, if insulation Insulating sublayer performance is normal, then generates and continue gap discharge, by observing chamber 111 it can be seen that the first spray point 211 is put with second Spark is generated between acusector 212, and sends out discharging sound sound.General way is to acquire the electric discharge sound that generates at this time to judge absolutely The insulation performance of edge.In the utility model, general way has been abandoned, sound has not been acquired, but acquires electromagnetic interference Signal.In gap discharge, high pressure ionizes air breakdown, and positive and negative charge collision generates sound, and simultaneous is largely electric Radio wave by taking over antenna, is coupled to back-end circuit, carries out frequency-selecting and enhanced processing, can obtain by magnetic disturbance information The electromagnetic interference signal of gap discharge can judge the insulation performance of insulator by electromagnetic interference signal.Signal receiving antenna, Input circuit, frequency changer circuit, intermediate frequency amplifier, wave detector, audio-frequency amplifier and power amplifier use the prior art, after being convenient for Continuous analysis and judgement.Further, the first spray point 211 can be connect with the first conducting wire 311, and the second spray point 212 can be with It is connect with the second conducting wire 312, optionally, the first conducting wire 311 and the second conducting wire 312 are electrically connected to rotation by privates 412 Corresponding spy stylus contact point on turntable 912.Optionally, those skilled in the art can also connect spray point by other means It is connected to and visits on contact pilotage, such as privates 711 can be passed through(It can be designed as copper strips)It is connect with shaft 811, by shaft 811 Electronic circuit be connected on spray point, entire circuit carries out anti-electromagnetic interference design, the stability and reliability of safeguard work.
The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to herein Disclosed form is not to be taken as the exclusion to other embodiment, and available for other combinations, modifications, and environments, and Can be in contemplated scope described herein, modifications can be made through the above teachings or related fields of technology or knowledge.And this field The modifications and changes that personnel are carried out do not depart from the spirit and scope of the utility model, then all should be in right appended by the utility model It is required that protection domain in.

Claims (6)

1. a kind of device using gap discharge acquisition electromagnetic wave, which is characterized in that including:Detection probe, reception antenna, input Circuit, frequency changer circuit, intermediate frequency amplifier, wave detector, audio-frequency amplifier and power amplifier;The detection probe includes observation chamber (111), in observation chamber(111)Spray point is inside provided with, spray point gap discharge generates electromagnetic interference signal under hyperbaric environment, The reception antenna is used to receive the electromagnetic interference signal of discharging gap generation;The reception antenna and input circuit it is defeated Enter end connection, the output terminal of input circuit and the input terminal of frequency changer circuit connect, the output terminal and intermediate frequency amplifier of frequency changer circuit Input terminal connection, the input terminal of the output terminal of intermediate frequency amplifier and wave detector connects, and output terminal and the audio of wave detector are amplified The input terminal connection of device, the output terminal of audio-frequency amplifier and the input terminal of power amplifier connect;
The detection probe includes:Pedestal, rotating disk(912), first gear(411)With spy contact pilotage;The spy contact pilotage is revolving Turntable(912)On;The rotating disk(912)With first gear(411)Connection, first gear(411)It is connect with transmission device, Under the gearing of transmission device, rotating disk(912)And it is arranged on rotating disk(912)On spy contact pilotage being capable of 360 degree rotation; The spray point is in observation chamber(111)In and with visit contact pilotage electrical connection.
2. a kind of device using gap discharge acquisition electromagnetic wave according to claim 1, it is characterised in that:The biography Dynamic device includes motor, motor and second gear(202)Connection.
3. a kind of device using gap discharge acquisition electromagnetic wave according to claim 2, it is characterised in that:The electricity Machine includes Telescopic motor and spinfunction motor, and the control of Telescopic motor is visited contact pilotage and is moved forward and backward, spinfunction motor Adjustment visits contact pilotage and visits feeler degree.
4. a kind of device using gap discharge acquisition electromagnetic wave according to claim 1, it is characterised in that:Further include spy Contact pilotage and insulating bar are visited contact pilotage and are located in detection probe, and insulating bar is connect with detection probe.
5. a kind of device using gap discharge acquisition electromagnetic wave according to claim 4, it is characterised in that:The spy Contact pilotage includes rear end part(102)And fore-end(101), the fore-end(101)In class U-shaped;When in use when The fore-end of the spy contact pilotage(101)When blocking insulator, top clamping insulator is received automatically by the effect of contact force.
6. a kind of device using gap discharge acquisition electromagnetic wave according to claim 5, it is characterised in that:Described is exhausted Edge bar is hollow insulating bar, and the second insulating bar is nested in hollow insulating bar;The joint of insulating bar is provided with second gear (202), second gear(202)With first gear(411)Occlusion, for driving first gear(411)Rotation.
CN201721054661.8U 2017-08-22 2017-08-22 A kind of device using gap discharge acquisition electromagnetic wave Active CN207601225U (en)

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CN201721054661.8U CN207601225U (en) 2017-08-22 2017-08-22 A kind of device using gap discharge acquisition electromagnetic wave

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113419151A (en) * 2021-07-15 2021-09-21 贵州电网有限责任公司 Portable fault insulator online detection device and detection method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113419151A (en) * 2021-07-15 2021-09-21 贵州电网有限责任公司 Portable fault insulator online detection device and detection method
CN113419151B (en) * 2021-07-15 2022-07-01 贵州电网有限责任公司 Portable fault insulator online detection device and detection method

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GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A device for collecting electromagnetic waves using gap discharge

Effective date of registration: 20231218

Granted publication date: 20180710

Pledgee: Chengdu SME financing Company Limited by Guarantee

Pledgor: CHENGSHU ELECTRIC POWER GROUP CO.,LTD.

Registration number: Y2023990000620

PE01 Entry into force of the registration of the contract for pledge of patent right