Live flaw detection system for multi-bundled conductor splicing sleeve and application method thereof

Patent metadata

Field	Value
Publication number	US-11959866-B2
Application number	US-202217739211-A
Country	US
Kind code	B2
Filing date	May 9, 2022
Priority date	Nov 18, 2021
Publication date	Apr 16, 2024
Grant date	Apr 16, 2024

Abstract

A live flaw detection system for a multi-bundled conductor splicing sleeve and an application method thereof are disclosed. The system includes an upper apparatus and a lower apparatus, where the upper apparatus includes an unmanned aerial vehicle and an industrial X-ray machine, and a laser sensor, and the lower apparatus includes a press plate frame apparatus, vertical screw slide table modules, a horizontal screw slide table module, a projection imager, and a linear retractable apparatus. The unmanned aerial vehicle functions as a power apparatus that controls the system to be online or offline, the industrial X-ray machine is configured to perform ray flaw detection on each splicing sleeve, the laser sensor is configured to guide the unmanned aerial vehicle to land the lower apparatus on splicing sleeves accurately, and the press plate frame apparatus is configured to fixedly clamp the splicing sleeves.

First claim

What is claimed is:

1. A live flaw detection system for a multi-bundled conductor splicing sleeve, said system comprising:
an upper apparatus; and
a lower apparatus, wherein
the upper apparatus comprises an unmanned aerial vehicle, an industrial X-ray machine, and a laser sensor, wherein a foot stand is connected to a frame of the unmanned aerial vehicle, the industrial X-ray machine is mounted on a top of the frame of the unmanned aerial vehicle with a ray emission end facing downward, and the laser sensor is mounted on the foot stand,
the lower apparatus comprises a press plate frame apparatus, two vertical screw slide table modules, a horizontal screw slide table module, a projection imager, and a linear retractable apparatus,
the press plate frame apparatus comprises a press plate frame, the press plate frame comprises two sets of press plates and two locking apparatuses, the two sets of press plates are connected as a whole through pull rods, and each of the two locking apparatuses comprises a locking motor and a bracket plate, wherein the locking motor is arranged with an output shaft being perpendicular to a corresponding set of the two sets of press plates and the locking motor is fixed on the corresponding set of the two sets of press plates, and the bracket plate is vertically connected to the output shaft of the locking motor,
the two vertical screw slide table modules are arranged with screw slide blocks of the two vertical screw slide table modules being opposite to each other, and tops of slide tables of the two vertical screw slide table modules are hinged to the two sets of press plates respectively through respective first rotation shafts,
a bracket is disposed between the screw slide blocks of the two vertical screw slide table modules, and the horizontal screw slide table module is fixed on the bracket with a screw slide block of the horizontal screw slide table module facing upward,
the projection imager is horizontally mounted on the screw slide block of the horizontal screw slide table module,
the linear retractable apparatus is fixed to a side of one set of the two sets of press plates, wherein the linear apparatus includes a retractable rod and an end of the retractable rod of the linear retractable apparatus is hinged to an upper end of one of the two vertical screw slide table modules, the retractable rod retracts to cause the two vertical screw slide table modules to rotate around the respective first rotation shafts, to change a position of the projection imager,
when the upper apparatus and the lower apparatus are assembled, the foot stand of the unmanned aerial vehicle is fixed to a top of the press plate frame, and
when the live flaw detection system is fixed on multi-bundled conductors, the press plate frame presses upper multi-bundled conductor splicing sleeves of the multi-bundled conductors, and each bracket plate holds one of the upper multi-bundled conductor splicing sleeves and causes the one of the upper multi-bundled conductor splicing sleeves to be clamped fixedly between the corresponding set of the two sets of press plates and the bracket plate.

2. The live flaw detection system according to claim 1 , wherein the unmanned aerial vehicle is of a hexarotor type.

3. The live flaw detection system according to claim 1 , wherein the frame of the unmanned aerial vehicle is a rectangular frame, two support seats are symmetrically connected to a middle position of the rectangular frame along a length direction, a support plate is rotatably connected between the two support seats, a T-shaped hole is provided at a middle position of the support plate, and the ray emission end of the industrial X-ray machine is placed at the T-shaped hole and is covered and fixed by a cover connected to the support plate.

4. The live flaw detection system according to claim 1 , wherein each of the two sets of press plates is provided with an upper groove and each of the two sets of press plates spans across the multi-bundled conductors through the upper groove, each of the two sets of press plates comprises two press plates disposed in parallel, and the two press plates are connected and fixed through a pin shaft and a sleeve outside the pin shaft.

5. The live flaw detection system according to claim 1 , wherein an upper edge of each of the bracket plates is provided with a lower groove matching a diameter of the upper multi-bundled conductor splicing sleeves.

6. The live flaw detection system according to claim 1 , wherein the top of the slide table of each of the two vertical screw slide table modules is fixed to an outer side of a corresponding multi-bundled conductor on the corresponding set of the two sets of press plates, and a top of each vertical screw is connected to an output shaft of a servo motor through a coupler.

7. The live flaw detection system according to claim 1 , wherein the bracket is a U-shaped bracket, and two side arms of the bracket are connected and fixed to the screw slide blocks of the two vertical screw slide table modules respectively through fixing elements.

8. A method for a live flaw detection of a multi-bundled conductor splicing sleeve using the live flaw detection system according to claim 1 , the method comprising the steps of:
(1) assembling the upper apparatus and the lower apparatus respectively, and fixing the foot stand of the unmanned aerial vehicle of the upper apparatus on the pull rods at the top of the press plate frame of the lower apparatus, wherein the slide tables of the two vertical screw slide table modules of the lower apparatus are in a vertical state;
(2) moving the screw slide block of the horizontal screw slide table module outward with the projection imager to a position close to the two vertical screw slide table modules;
(3) extending the retractable rod of the linear retractable apparatus to cause the two vertical screw slide table modules to rotate outward around the respective first rotation shafts mounted on the two sets of press plates, wherein during a rotation, the two vertical screw slide table modules drive the horizontal screw slide table module and the projection imager to swing to an outer side of upper grooves of the two sets of press plates;
(4) controlling the unmanned aerial vehicle to move to above the upper multi-bundled conductor splicing sleeves, determining a position relationship between an entirety of the live flaw detection system and the multi-bundled conductors through the laser sensor and adjusting a position of the unmanned aerial vehicle to land the unmanned aerial vehicle accurately such that the two sets of press plates all span across the upper multi-bundled conductor splicing sleeves through the upper grooves at bottoms of the two sets of press plates;
(5) controlling the locking motors on the press plate frame to work such that the bracket plates rotate upward to hold and lock the upper multi-bundled conductor splicing sleeves to fix the entirety of the live flaw detection system stably on the upper multi-bundled conductor splicing sleeves;
(6) retracting the retractable rod of the linear retractable apparatus, such that the two vertical screw slide table modules return to the vertical state;
(7) adjusting a position of the projection imager through the two vertical screw slide table modules and the horizontal screw slide table module to cause the projection imager to be located under a first upper multi-bundled conductor splicing sleeve of the upper multi-bundled conductor splicing sleeves;
(8) adjusting an angle of the industrial X-ray machine, to cause an X-ray emitted by the industrial X-ray machine to be projected on the projection imager after passing through the first upper multi-bundled conductor splicing sleeve to complete a detection o

Assignees

• State Grid Hunan Electric Company Ltd
• State Grid Hunan Extra High Voltage Trans Company
• State Grid Corp China

Inventors

• Zou Dehua
• Peng Shasha
• Jiang Zhipeng
• Wang Zhenyu
• Li Bocheng
• Xiao Qiaosha
• Xu Yurong
• Chen Zhenyu
• Zeng Wenyuan
• Liu Zhiguo

Classifications

• G01N23/18 Primary

  Investigating the presence of flaws defects or foreign matter · CPC title

• G01N23/083

  the radiation being X-rays · CPC title

• G05D1/0094

  involving pointing a payload, e.g. camera, weapon, sensor, towards a fixed or moving target · CPC title

• G05D1/101

  specially adapted for aircraft · CPC title

• B64U2101/30

  for imaging, photography or videography · CPC title