CN115930853A - Grounding down lead film coating thickness detection tool and detection process thereof - Google Patents
Grounding down lead film coating thickness detection tool and detection process thereof Download PDFInfo
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- CN115930853A CN115930853A CN202310020672.8A CN202310020672A CN115930853A CN 115930853 A CN115930853 A CN 115930853A CN 202310020672 A CN202310020672 A CN 202310020672A CN 115930853 A CN115930853 A CN 115930853A
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Abstract
The invention relates to the technical field of grounding construction of electric power engineering, in particular to a grounding down conductor film covering thickness detection tool which comprises a connecting frame, a first ultrasonic detection device, a handheld device and the like. This detect frock can carry out automatic tectorial membrane thickness detection to the cable through installing the first ultrasonic detection device on the link and whether still fix to the tip of cable and take two kinds of installation forms, can't confirm completely whether have a problem or can't detect the cable region of accomplishing through automation and can also adopt the manual work to utilize second ultrasonic detection device to carry out artifical supplementary detection and reinspection in automatic testing process, thereby effectual completion is to the complete detection of cable tectorial membrane region, and the interim detection in the follow-up repair process of completion that can also be convenient, thereby it is qualified to have ensured the cable tectorial membrane layer that is used for ground connection downlead.
Description
Technical Field
The invention relates to the technical field of electric power engineering, in particular to a grounding down lead film coating thickness detection tool and a detection process thereof.
Background
Electric power system transmission and distribution lines generally erect in the open air, and there is not the lightning rod protection around it, often need prevent to strike by lightning iron tower or wire at the actual motion in-process, avoids high amplitude's thunderbolt electric current to cause transmission and distribution lines suspension insulator to take place flashover and puncture, causes transmission and distribution lines short circuit ground fault then. In order to prevent the power transmission and distribution line from being struck by lightning, each iron tower is provided with a grounding device in the process of constructing the power transmission and distribution line, a grounding down lead is a conductor for connecting a power tower and a buried grounding body, and the grounding down lead is extremely easy to corrode within a range of 10-20 cm below the ground surface, is the weakest link in the grounding grid of the whole power system tower and is the most critical part for influencing the service life of the whole grounding grid.
At present, a power transmission and distribution line pole tower grounding grid is mainly prepared from low-carbon steel, copper-coated steel and galvanized steel conductors, and in order to further avoid the service life of a grounding down lead, an anticorrosion coating layer formed by anticorrosion paint, a high-molecular hot-melt material and the like is often coated on the outer layer of the grounding down lead. The tectorial membrane layer is mainly set by corresponding personnel interim manual, and this thickness that just leads to the tectorial membrane layer is difficult to set up evenly, is difficult to play good guard action when the tectorial membrane layer is too thin, and not only extravagant material but also need consume more time when the tectorial membrane layer is too thick, consequently need carry out the thickness inspection to the tectorial membrane layer of cable and ensure that the thickness of tectorial membrane layer is in reasonable within range.
At present, the inspection of cable tectorial membrane layer thickness mainly adopts the ultrasonic thickness gauge to realize, but present hand-held type ultrasonic thickness gauge is difficult to carry out omnidirectional inspection to cable tectorial membrane layer, but adopts artifical handheld operation to inspect some position, and this region that has just caused the inspection is incomplete, is difficult to effectual reaching the detection purpose, and artifical handheld inspection inefficiency need consume a large amount of time moreover. The invention provides a grounding down conductor film-coating thickness detection tool and a detection process thereof, and aims to design and prepare a novel device capable of quickly detecting the thickness of a film-coating layer on the surface of a cable used by a grounding down conductor, so that the construction problem of the grounding down conductor can be effectively solved.
Disclosure of Invention
The invention aims to provide a grounding down conductor coating thickness detection tool and a detection process thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a ground connection downlead tectorial membrane thickness detects frock, should detect the frock and include:
the cable traction device comprises a connecting frame, wherein two pairs of traction units are symmetrically arranged at the front end and the rear end of the connecting frame, each traction unit comprises a support frame, an adjusting push rod is fixedly arranged on each support frame, the output end of each adjusting push rod is connected with the connecting frame in a driving mode, a guide column is slidably arranged on each support frame, a limiting ring used for limiting a cable is fixedly arranged at the tail end of each guide column, the limiting rings are connected with the support frames through jacking springs, a traction motor is fixedly arranged on each support frame, the output end of each traction motor drives a traction rubber wheel used for clamping and driving the cable to move, and a bottom frame is arranged at the lower end of each connecting frame in a detachable connection mode;
the first ultrasonic detection device comprises an arc-shaped fixed ring which is fixed with the connecting frame and used for penetrating the cable, a rotating gear ring is rotatably arranged on the arc-shaped fixed ring, a main motor is fixedly arranged on the connecting frame, a driving gear which is meshed and connected with the rotating gear ring is driven by the output end of the main motor, and a first ultrasonic detection probe used for detecting the thickness of a coating layer on the cable is fixedly arranged on the driving gear;
the device comprises a handheld device, wherein a controller, a loudspeaker, a display and a second ultrasonic detection device used for detecting the thickness of a coating layer on a cable are fixedly mounted on the handheld device, and the controller is respectively electrically connected with the second ultrasonic detection device, a traction motor, an adjusting push rod, a main motor, a first ultrasonic detection probe, the loudspeaker and the display.
Preferably, the second ultrasonic detection device comprises a pair of clamping arms hinged to the handheld device, the tail ends of the two clamping arms form a clamping ring for clamping the cable, a second ultrasonic detection probe for detecting the thickness of the coating layer on the cable is mounted on the clamping ring, the two clamping arms are connected through a return spring, and the second ultrasonic detection probe is electrically connected with the controller.
Preferably, the second ultrasonic detection device comprises a pair of clamping arms hinged to the handheld device, the tail ends of the two clamping arms form a clamping ring for clamping the cable, a second ultrasonic detection probe for detecting the thickness of the coating layer on the cable is mounted on the clamping ring, the two clamping arms are connected through a return spring, and the second ultrasonic detection probe is electrically connected with the controller.
Preferably, the side fixed mounting of chassis has the bearing plate that is used for placing the balancing weight, and pegs graft on the chassis and install the inserted bar that is used for pegging graft fixed connection frame, the terminal fixed mounting of inserted bar has the pull rod, and the pull rod is fixed with the chassis through promoting the spring.
Preferably, the outer side of the traction rubber wheel is wrapped by a rubber ring used for increasing the friction force between the traction rubber wheel and the cable, and the traction rubber wheel and the support frame are rotatably installed through a bearing.
Preferably, the support frames on the traction units respectively positioned at the front end and the rear end of the first ultrasonic detection device on the connecting frame are fixedly connected through a connecting rod, and a pull handle convenient to carry is fixedly mounted on the connecting rod.
Preferably, the controller is an ARM single chip microcomputer controller, and the adjusting push rod is an electric push rod.
Preferably, the bottom of arc retainer plate is provided with the opening that makes things convenient for the cable to get into arc retainer plate center, and rotates the ring gear and be less than the arc ring gear of three hundred degrees for the radian.
Preferably, at least three first ultrasonic detection probes are uniformly arranged on the rotating gear ring, and the traction motor and the main motor are stepping motors.
Preferably, the front end and the rear end of the limiting rings are respectively and integrally formed with an arc-shaped guide sheet which facilitates the front-rear movement of the cable, and rubber shock-absorbing pads are fixedly mounted on contact surfaces between the two limiting rings which are pressed relatively.
A measuring process of a film covering thickness detection tool of a grounding down lead comprises the following steps:
s1, cable fixation: when at least one section of two ends of a cable to be detected is fixed, the underframe is detached at the moment, the cable is tensioned and fixed, then the limiting rings of the equipment are aligned with the cable, and the two pairs of traction rubber wheels are used for clamping the cable by utilizing the traction unit, so that parts on the connecting frame can be suspended on the cable, the equipment can be driven to advance or retreat along the cable when the traction motor works, when the two ends of the cable are not fixed, the connecting frame is fixed on the ground by utilizing the underframe, then the cable is placed between the two pairs of limiting rings and is clamped by utilizing the two pairs of traction rubber wheels, and the cable can be driven to advance or retreat along the center of the two pairs of limiting rings when the traction motor works;
s2, automatic detection: after the cable and the equipment are fixed, an operator operates the handheld device with hands and issues a corresponding working instruction by using the controller, then the equipment and the cable perform relative motion under the driving of the traction motor, at the moment, the cable slowly passes through the position where the first ultrasonic detection probe is located, meanwhile, two pairs of traction units on the front side and the rear side of the first ultrasonic detection device can ensure that the cable located in the middle of the two pairs of traction rubber wheels is always in a tensioning state, then, the main motor starts to drive the rotating gear ring to perform repeated forward and backward rotation along the arc-shaped fixing ring, so that the first ultrasonic detection probe can periodically perform left and right rotating motion along the cable, and perform thickness detection on a film coating layer on the cable in the motion process, the detection result can be displayed by a display, when the detection is unqualified, a notification can be sent by a loudspeaker, at the moment, the detection is suspended, the operator can mark at the current position, and the detection work can be continued again until the operator issues a continuous working instruction until the detection is completed;
s3, manual detection: an operator separates the cable from the traction rubber wheel through the controller, then picks up the hand-held device again to perform manual detection on the area marked with the problem on the cable through the second ultrasonic detection device, performs manual detection on the area which cannot be automatically detected on the cable, and marks the part with the detected problem again until the troubleshooting of all the areas to be detected on the cable is finished;
s4, repairing: after the detection is finished, an operator packs up the detection equipment temporarily, then removes and repairs the film coating layer with the detected problems, detects the repaired area by using the equipment again after the repair is finished, then removes and repairs the area with the detected problems after marking the area with the detected problems again, and repeats the process until all the repairs are finished.
Compared with the prior art, the invention has the beneficial effects that: the detection tool designed by the invention can automatically detect the film covering thickness of the cable through the first ultrasonic detection device arranged on the connecting frame, and also adopts two installation forms according to whether the end part of the cable is fixed, and can also manually utilize the second ultrasonic detection device to carry out manual auxiliary detection and reinspection on the cable area which cannot completely determine whether the cable has a problem or cannot be completed through automatic detection in the automatic detection process, so that the complete detection of the film covering area of the cable is effectively completed, and the temporary detection in the subsequent repair process can be conveniently completed, thereby ensuring that the film covering layer of the cable for the grounding down lead is qualified, and having high practical value.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the installation of the traction unit and the hitch of the present invention;
FIG. 3 is a schematic structural view of a traction unit according to the present invention;
FIG. 4 is a schematic structural diagram of a first ultrasonic testing apparatus according to the present invention;
FIG. 5 is a schematic view of the construction of the undercarriage of the present invention;
figure 6 is a schematic view of the mounting of a second ultrasonic testing device and handset of the invention.
In the figure: 1. a connecting frame; 2. a second ultrasonic detection device; 201. a clamping ring; 202. a second ultrasonic detection probe; 203. a return spring; 204. a clamp arm; 3. a traction unit; 301. a traction motor; 302. pressing the spring; 303. a traction rubber wheel; 304. a limiting ring; 305. a support frame; 306. a guide post; 307. adjusting the push rod; 4. a first ultrasonic detection device; 401. a main motor; 402. a first ultrasonic detection probe; 403. an arc-shaped fixing ring; 404. a drive gear; 405. rotating the gear ring; 5. a connecting rod; 6. pulling a handle; 7. a handset; 8. a controller; 9. a speaker; 10. a display; 11. a bearing plate; 12. a chassis; 13. inserting a rod; 14. a push spring; 15. a pull rod; 16. a cable.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the technical solutions in the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 6, the present invention provides a technical solution: the utility model provides a ground connection downlead tectorial membrane thickness detects frock, should detect the frock and include:
referring to fig. 1 to 3 and 5, two pairs of traction units 3 are symmetrically installed at the front end and the rear end of the connecting frame 1, each traction unit 3 includes a support frame 305, an adjusting push rod 307 is fixedly installed on each support frame 305, the output end of the adjusting push rod 307 is driven to be connected with the connecting frame 1, a guide post 306 is slidably installed on each support frame 305, a limit ring 304 for limiting the cable 16 is fixedly installed at the tail end of the guide post 306, the limit ring 304 is connected with the support frame 305 through a top pressure spring 302, a traction motor 301 is fixedly installed on each support frame 305, a traction rubber wheel 303 for clamping and driving the cable 16 to move is driven by the output end of the traction motor 301, an underframe 12 is installed at the lower end of the connecting frame 1 in a detachable connection manner, each pair of traction units 3 is used for forming a traction rubber wheel 303 group for jointly pressing two sides of the cable 16, each pair of limiting rings 304 is used for guiding the cable 16 to enter between the traction rubber wheels 303, when the traction rubber wheels 303 move in place under the pushing of the adjusting push rod 307, the two pairs of limiting rings 304 are closed under the pushing of the jacking spring 302, the front end and the rear end of each limiting ring 304 are respectively and integrally formed with an arc-shaped guiding sheet which facilitates the forward and backward movement of the cable 16, the guiding sheet which is bent towards the outside can effectively prevent the cable 16 from being clamped when entering and exiting, a rubber shock pad is fixedly installed on a contact surface between the two limiting rings 304 which are oppositely pressed, a rubber ring for increasing the friction force between the traction rubber wheels 303 and the cable 16 is wrapped on the outer side of each traction rubber wheel 303, the traction rubber wheels 303 and the supporting frame 305 are rotatably installed through bearings, a bearing plate 11 for placing a balancing weight is fixedly installed on the side surface of the underframe 12, the balancing weight can be placed according to use requirements as long as the underframe 12 can not displace during working, under the condition of a condition, the underframe 12 can also be directly fixed on the ground through fixing components such as fixing piles or bolts, the inserting rod 13 for inserting and fixing the connecting frame 1 is inserted and installed on the underframe 12, the tail end of the inserting rod 13 is fixedly provided with the pull rod 15, the pull rod 15 is fixed with the underframe 12 through the pushing spring 14, and the inserting rod 13 can be pulled out of the connecting frame 1 only by pulling the pull rod 15 outwards, so that the underframe 12 is separated from the connecting frame 1, and the dead weight of the device when the device is hung on a cable can be effectively reduced;
referring to fig. 2 and 4, the first ultrasonic detection device 4 includes an arc-shaped fixing ring 403 fixed to the connecting frame 1 and used for inserting the cable 16, a rotating gear ring 405 is rotatably mounted on the arc-shaped fixing ring 403, a main motor 401 is fixedly mounted on the connecting frame 1, a driving gear 404 meshed with the rotating gear ring 405 is driven by an output end of the main motor 401, a first ultrasonic detection probe 402 used for detecting the thickness of an overlying film layer of the cable 16 is fixedly mounted on the driving gear 404, an opening for allowing the cable 16 to enter the center of the arc-shaped fixing ring 403 is formed in the bottom of the arc-shaped fixing ring 403, the rotating gear ring 405 is an arc-shaped gear ring with a circular arc degree smaller than three hundred degrees, at least three first ultrasonic detection probes 402 are uniformly mounted on the rotating gear ring 405, and the traction motor 301 and the main motor 401 are stepping motors;
referring to fig. 1 and 6, a controller 8, a speaker 9, a display 10 and a second ultrasonic detection device 2 for detecting the thickness of an overlying film layer of a cable 16 are fixedly mounted on the handset 7, and the controller 8 is respectively electrically connected with the second ultrasonic detection device 2, the traction motor 303, the adjusting push rod 307, the main motor 401, the first ultrasonic detection probe 402, the loudspeaker 9 and the display 10, the controller 8 is an ARM single chip controller, the adjusting push rod 307 is an electric push rod, the support frames 305 on the traction units 3 respectively positioned at the front end and the rear end of the first ultrasonic detection device 4 on the connecting frame 1 are fixedly connected through a connecting rod 5, and a pull handle 6 which is convenient to carry is fixedly arranged on the connecting rod 5, the second ultrasonic detection device 2 comprises a pair of clamping arms 204 which are hinged with the hand-held device 7, and the tail ends of the two clamping arms 204 form a clamping ring 201 for clamping the cable 16, a second ultrasonic detection probe 202 for detecting the thickness of the coating layer on the cable 16 is arranged on the clamping ring 201, the two clamping arms 204 are connected through a return spring 203, the second ultrasonic detection probe 202 is electrically connected with the controller 8, the inside of the hand-held device 7 is also provided with components such as transducers matched with the first ultrasonic detection probe 402 and the second ultrasonic detection probe 202, thereby forming a complete ultrasonic detection system, correspondingly setting a corresponding ultrasonic processing program in the controller 8, converting the data detected by the first ultrasonic detection probe 402 and the second ultrasonic detection probe 202 into visual data or images, facilitating the operator to look up, the detection principle and the internal corresponding structure of the ultrasonic detection part of the device can refer to an ultrasonic thickness measuring instrument commonly used in the market.
A measuring process of a film covering thickness detection tool of a grounding down lead comprises the following steps:
s1, cable fixation: when at least one section of the two ends of the cable 16 to be detected is fixed, the underframe 12 is detached at the moment, then the cable 16 is tensioned and fixed, then the limiting rings 304 of the device are aligned with the cable 16, the two pairs of traction rubber wheels 303 are used for clamping the cable 16 by the traction unit 3, so that the components on the connecting frame 1 can be suspended on the cable 16, at the moment, the traction motor 301 can drive the device to advance or retreat along the cable 16 when working, when the two ends of the cable 16 are not fixed, the connecting frame 1 is fixed on the ground by the underframe 12, then the cable 16 is placed in the middle of the two pairs of limiting rings 304 and is clamped by the two pairs of traction rubber wheels 303, and at the moment, the traction motor 301 can drive the cable 16 to advance or retreat along the center of the two pairs of limiting rings 304 when working;
s2, automatic detection: after the cable 16 is fixed to the device, an operator holds the handheld device 7 with a hand and gives a corresponding work instruction by using the controller 8, then the device and the cable 16 perform relative motion under the driving of the traction motor 301, at this time, the cable 16 starts to slowly pass through the position where the first ultrasonic detection probe 402 is located, meanwhile, two pairs of traction units 3 located on the front side and the rear side of the first ultrasonic detection device 4 can ensure that the cable 16 located in the middle of the two pairs of traction rubber wheels 303 is always in a tensioned state, then the main motor 401 starts to drive the rotating gear ring 405 to perform repeated forward and backward rotation along the arc-shaped fixing ring 403, so that the first ultrasonic detection probe 402 can periodically perform left and right rotating motion along the cable 16, thickness detection is performed on a film coating layer on the cable 16 in the motion process, the detection result can be displayed by the display 10, when detection is unqualified, a notification is sent by the loudspeaker 9, at this time, the detection is suspended, the operator can mark is made at the current position, and the detection work can be continued until the detection is completed;
s3, manual detection: an operator separates the cable 16 from the traction rubber wheel 303 through the controller 8, then picks up the hand-held unit 7 again, manually detects the area marked with the problem on the cable 16 through the second ultrasonic detection device 2, simultaneously manually detects the area which cannot be automatically detected on the cable 16, and marks the part with the problem again until the troubleshooting of all the areas to be detected on the cable 16 is finished;
s4, repairing: after the detection is finished, an operator packs up the detection equipment temporarily, then removes and repairs the film coating layer with the detected problems, detects the repaired area by using the equipment again after the repair is finished, then removes and repairs the area with the detected problems after marking the area with the detected problems again, and repeats the process until all the repairs are finished.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a ground connection downlead tectorial membrane thickness detects frock which characterized in that should detect the frock and include:
the cable traction device comprises a connecting frame (1), two pairs of traction units (3) are symmetrically installed at the front end and the rear end of the connecting frame (1), each traction unit (3) comprises a supporting frame (305), an adjusting push rod (307) is fixedly installed on each supporting frame (305), the output end of each adjusting push rod (307) is driven to be connected with the connecting frame (1), a guide column (306) is installed on each supporting frame (305) in a sliding mode, a limiting ring (304) used for limiting a cable (16) is fixedly installed at the tail end of each guide column (306), the limiting rings (304) are connected with the supporting frames (305) through jacking springs (302), a traction motor (301) is fixedly installed on each supporting frame (305), traction rubber wheels (303) used for clamping and driving the cable (16) to move are driven by the output ends of the traction motors (301), and an underframe (12) is installed at the lower end of the connecting frame (1) in a detachable connection mode;
the ultrasonic detection device comprises a first ultrasonic detection device (4), wherein the first ultrasonic detection device (4) comprises an arc-shaped fixing ring (403) which is fixed to a connecting frame (1) and used for penetrating a cable (16), a rotating gear ring (405) is rotatably mounted on the arc-shaped fixing ring (403), a main motor (401) is fixedly mounted on the connecting frame (1), a driving gear (404) which is meshed and connected with the rotating gear ring (405) is driven by the output end of the main motor (401), and a first ultrasonic detection probe (402) used for detecting the thickness of an upper covering film layer of the cable (16) is fixedly mounted on the driving gear (404);
the device comprises a handheld device (7), wherein a controller (8), a loudspeaker (9), a display (10) and a second ultrasonic detection device (2) for detecting the thickness of an upper film layer of a cable (16) are fixedly mounted on the handheld device (7), and the controller (8) is electrically connected with the second ultrasonic detection device (2), a traction motor (303), an adjusting push rod (307), a main motor (401), a first ultrasonic detection probe (402), the loudspeaker (9) and the display (10) respectively.
2. The tool for detecting the film coating thickness of the grounding down lead according to claim 1, characterized in that: the second ultrasonic detection device (2) comprises a pair of clamping arms (204) hinged with the handheld device (7), the tail ends of the two clamping arms (204) form a clamping ring (201) used for clamping the cable (16), a second ultrasonic detection probe (202) used for detecting the thickness of an upper coating layer of the cable (16) is mounted on the clamping ring (201), the two clamping arms (204) are connected through a return spring (203), and the second ultrasonic detection probe (202) is electrically connected with the controller (8).
3. The tool for detecting the film covering thickness of the grounding down lead according to claim 1, characterized in that: the side fixed mounting of chassis (12) has bearing plate (11) that are used for placing the balancing weight, and pegs graft on chassis (12) and install inserted bar (13) that are used for pegging graft fixed connection frame (1), the terminal fixed mounting of inserted bar (13) has pull rod (15), and pull rod (15) are fixed through promotion spring (14) and chassis (12).
4. The tool for detecting the film coating thickness of the grounding down lead according to claim 1, characterized in that: the outer side of the traction rubber wheel (303) is wrapped with a rubber ring used for increasing the friction force between the traction rubber wheel and the cable (16), and the traction rubber wheel (303) and the supporting frame (305) are rotatably installed through a bearing.
5. The tool for detecting the film covering thickness of the grounding down lead according to claim 1, characterized in that: the connecting frame (1) is fixedly connected with the support frames (305) on the traction units (3) at the front end and the rear end of the first ultrasonic detection device (4) through the connecting rod (5), and the connecting rod (5) is fixedly provided with a pull handle (6) convenient to carry.
6. The tool for detecting the film covering thickness of the grounding down lead according to claim 1, characterized in that: the controller (8) is an ARM single-chip microcomputer controller, and the adjusting push rod (307) is an electric push rod.
7. The tool for detecting the film covering thickness of the grounding down lead according to claim 1, characterized in that: the bottom of arc retainer plate (403) is provided with the opening that makes things convenient for cable (16) to get into arc retainer plate (403) center, and rotates ring gear (405) and be less than the arc ring gear of three hundred degrees for the radian.
8. The tool for detecting the film covering thickness of the grounding down lead according to claim 1, characterized in that: at least three first ultrasonic detection probes (402) are uniformly arranged on the rotary gear ring (405), and the traction motor (301) and the main motor (401) are stepping motors.
9. The tool for detecting the film coating thickness of the grounding down lead according to claim 1, characterized in that: arc guide pieces facilitating forward and backward movement of the cable (16) are respectively and integrally formed at the front end and the rear end of the limiting rings (304), and rubber shock-absorbing pads are fixedly mounted on contact surfaces between the two limiting rings (304) which are pressed oppositely.
10. The process for testing the tool for detecting the film coating thickness of the down conductor according to any one of claims 1 to 9, wherein the process comprises the following steps:
s1, cable fixation: when at least one section of two ends of a cable (16) to be detected is fixed, the underframe (12) is detached, the cable (16) is tensioned and fixed, then the limiting rings (304) are aligned with the cable (16) and the two pairs of traction rubber wheels (303) are used for clamping the cable (16) by the traction unit (3), so that components on the connecting frame (1) can be suspended on the cable (16), the traction motor (301) can drive equipment to advance or retreat along the cable (16) when working, when the two ends of the cable (16) are not fixed, the connecting frame (1) is fixed on the ground by the underframe (12), the cable (16) is placed in the middle of the two pairs of limiting rings (304) and is clamped by the two pairs of traction rubber wheels (303), and the traction motor (301) can drive the cable (16) to advance or retreat along the center of the two pairs of limiting rings (304) when working;
s2, automatic detection: after the cable (16) is well fixed with the equipment, an operator holds the handheld device (7) with hands and issues a corresponding work instruction by using the controller (8), then the equipment and the cable (16) move relatively under the driving of the traction motor (301), at the moment, the cable (16) slowly passes through the position where the first ultrasonic detection probe (402) is located, meanwhile, two pairs of traction units (3) located on the front side and the rear side of the first ultrasonic detection device (4) can ensure that the cable (16) located in the middle of the two pairs of traction rubber wheels (303) is always in a tensioning state, then, the main motor (401) starts to drive the rotating gear ring (405) to repeatedly rotate forwards and backwards along the arc-shaped fixing ring (16), so that the first ultrasonic detection probe (402) can periodically rotate left and right along the cable (16), thickness detection is performed on the coated layer on the cable (16) in the moving process, the detection result can be displayed by the display (10), and when the detection is unqualified, the detection is also issued by the loudspeaker (9), the detection is suspended, the operator can be notified until the operator can mark operation instruction is issued again, and the detection is continued;
s3, manual detection: an operator separates the cable (16) from the traction rubber wheel (303) through the controller (8), then picks up the hand-held device (7) again to manually detect the area marked with the problem on the cable (16) through the second ultrasonic detection device (2), and simultaneously manually detects the area which cannot be automatically detected on the cable (16), and marks the part with the detected problem again until the troubleshooting of all the areas to be detected on the cable (16) is finished;
s4, repairing: after the detection is finished, the detection equipment is temporarily retracted by an operator, then the film coating layer with the detected problems is removed and repaired, the equipment is reused to detect the repaired area after the repair is finished, then the area with the detected problems is marked and then removed and repaired, and the process is repeated until all the parts are repaired.
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| CN202310020672.8A CN115930853B (en) | 2023-01-06 | 2023-01-06 | Grounding downlead film thickness detection tool and detection process thereof |
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| CN202310020672.8A CN115930853B (en) | 2023-01-06 | 2023-01-06 | Grounding downlead film thickness detection tool and detection process thereof |
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| CN208419817U (en) * | 2018-08-08 | 2019-01-22 | 长沙合兴卫生用品材料有限公司 | A kind of printing film thickness measurement device |
| CN110196027A (en) * | 2019-05-29 | 2019-09-03 | 合肥工业大学 | A kind of cable insulation thickness measuring device |
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| CN111562314A (en) * | 2020-06-12 | 2020-08-21 | 武汉网锐检测科技有限公司 | Cable outer protective layer detection device |
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| CN112615311A (en) * | 2020-12-28 | 2021-04-06 | 海南电网有限责任公司琼海供电局 | Fault point positioning device for power transmission line inspection |
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| KR101582326B1 (en) * | 2015-08-20 | 2016-01-04 | (주)송강지엘씨 | Cow body condision detector |
| CN108132031A (en) * | 2017-12-18 | 2018-06-08 | 上海鼎声电子科技有限公司 | The ultrasonic detection device and its detection method of in-service high-pressure gas cylinder group |
| CN108469237A (en) * | 2018-03-05 | 2018-08-31 | 武汉理工大学 | A kind of bush(ing) bearing week lubrication film thickness dynamic measurement device and method |
| CN208419817U (en) * | 2018-08-08 | 2019-01-22 | 长沙合兴卫生用品材料有限公司 | A kind of printing film thickness measurement device |
| CN209597144U (en) * | 2018-11-20 | 2019-11-08 | 中国石油天然气股份有限公司 | Alignment device and reaction kettle for retarder support |
| CN110196027A (en) * | 2019-05-29 | 2019-09-03 | 合肥工业大学 | A kind of cable insulation thickness measuring device |
| CN111650281A (en) * | 2020-05-29 | 2020-09-11 | 国网河南省电力公司电力科学研究院 | Ultrasonic phased array detection method for tower welding seam |
| CN111562314A (en) * | 2020-06-12 | 2020-08-21 | 武汉网锐检测科技有限公司 | Cable outer protective layer detection device |
| CN112124289A (en) * | 2020-10-12 | 2020-12-25 | 山东理工大学 | Real-time detection method for thickness of brake pad of automobile multi-piston caliper |
| CN112615311A (en) * | 2020-12-28 | 2021-04-06 | 海南电网有限责任公司琼海供电局 | Fault point positioning device for power transmission line inspection |
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