CN115144713B - Device and method for detecting insulation performance of power transmission line cable - Google Patents
Device and method for detecting insulation performance of power transmission line cable Download PDFInfo
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- CN115144713B CN115144713B CN202211075553.4A CN202211075553A CN115144713B CN 115144713 B CN115144713 B CN 115144713B CN 202211075553 A CN202211075553 A CN 202211075553A CN 115144713 B CN115144713 B CN 115144713B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
Abstract
The invention discloses a device and a method for detecting the insulation performance of a cable of a power transmission line, belonging to the technical field of cable insulation performance detection, and comprising two bases and a winch which are symmetrically arranged, wherein the bottom surface of each base is connected with a detection platform in a sliding manner, the outer side of a cable sleeve is wound with the cable, the detection platform is provided with a plurality of detection ports, each detection port comprises a detection frame body, the inner side of the detection frame body is connected with a first transmission wheel and a second transmission wheel, the lower surface of the first transmission wheel is provided with a first detection point, the upper surface of the second transmission wheel is provided with a second detection point, the first detection point and the second detection point are connected with a detection circuit, the accurate detection can be realized for the cable part with leakage damage, the detection is carried out on different parts of the cable by arranging a plurality of detection ports, meanwhile, the winch continuously rolls up the cable, the effective detection can be carried out on the whole cable part before the cable is laid, and the laying process of the cable is not influenced.
Description
Technical Field
The invention relates to the technical field of cable insulation performance detection, in particular to a device and a method for detecting the insulation performance of a power transmission line cable.
Background
In transmission line, the cable is main electric energy transmission wire rod product, the structure is the conductor from inside to outside in proper order, it is insulating, interior sheath, outer sheath and armor type, the insulating properties of cable detects and is crucial to the cable, there is certain drawback in current cable detection device when using, the cable transports to the job site after, the staff directly lays the cable, not pass through the detection, because the quantity of cable is more, can appear damaged emergence in the motion in-process or when dispatching from the factory, lead to the cable to lose insulating properties, if there is the cable damaged position to lead to dangerous emergence after laying cable installation again, if there is damaged cable emergence electric leakage accident after cable installation accomplishes the back cable normal operating, constructor's potential safety hazard has been caused, need detect the cable again, very big manpower and materials have been wasted, therefore, how to carry out effectual detection to the cable at the scene of construction installation and become the technical problem that needs to solve at present urgently.
Disclosure of Invention
The invention aims to provide a device and a method for detecting the insulation performance of a power transmission line cable, which can solve the existing problems.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a transmission line cable insulation performance detection device, includes two bases and the hoist engine that the symmetry set up, the bottom surface sliding connection of base has testing platform, and leans on top fixedly connected with cable cover in the relative one side of two bases, the outside winding of cable cover is provided with the cable, the outside of hoist engine is equipped with the haulage rope, the last a plurality of detection port that is provided with of testing platform, detection port including detecting the support body, the inboard of detecting the support body is connected with first transfer wheel and second transfer wheel, first transfer wheel and second transfer wheel are arranged from top to bottom and the centre is equipped with places the clearance, the lower surface of first transfer wheel is equipped with first check point, and the upper surface of second transfer wheel is equipped with the second check point, and first check point and second check point are connected with detection circuitry, the cable is worn out from placing the clearance and is detected with first check point and second check point contact, and the top of detecting the support body is equipped with the support frame, be equipped with oscillating drawing line mechanism on the support frame, oscillating drawing line mechanism is connected with the controller, the controller is connected with audible-visual annunciator, the controller still is connected with audible-visual alarm, the data communication of cable end is realized through CAN interface.
Furthermore, a detection power supply is arranged in the detection circuit, two ends of the detection power supply are respectively connected with the first detection point and the second detection point, and the audible and visual alarm and the controller are connected to a detection loop of the detection circuit.
Furthermore, the oscillating line drawing mechanism comprises an oscillating rod, a marking pen is connected onto the oscillating rod, and a steering engine is connected onto the oscillating rod and connected with the controller.
Furthermore, a camera is arranged on the support frame and connected with the controller.
Further, testing platform's bottom surface is provided with supporting mechanism, and two testing platform's relative one side leans on both ends all to be provided with stop gear, testing platform's one end leans on the equal fixedly connected with movable block in both sides, and testing platform's bottom leans on one end to be provided with a plurality of isolation grooves, and the isolation groove includes the cell body.
Further, the supporting mechanism includes two long support rods that the symmetry set up and two short support rods that the symmetry set up, the equal fixedly connected with turning block in top of long support rod and short support rod, the equal fixedly connected with anticreep ring in both sides of turning block, the inside of anticreep ring runs through and is provided with the joint groove, long support rod and the equal fixedly connected with upright awl in bottom of short support rod, the anticreep ring is located inside the cell body, and anticreep ring and cell body swing joint, the square setting is personally submitted to the transverse cutting in joint groove.
Further, stop gear includes the adapter sleeve, and the equal sliding connection in both ends of adapter sleeve has the threaded rod, and the one end fixedly connected with joint rod of threaded rod, and the other end fixedly connected with sliding block of threaded rod, the outside of threaded rod is provided with the thread bush, sliding block and adapter sleeve sliding connection, the cross-section of joint rod personally submits the square setting, and the one end of joint rod is equipped with the joint setting with the turning block after running through testing platform and anticreep ring, and the thread bush divide into two sections around, and the anterior segment internal surface of thread bush rotates with the threaded rod to be connected, and the back end internal surface of thread bush rotates with the adapter sleeve to be connected.
Furthermore, one end of the traction rope is tied up with the front end of the cable, and the movable block is inserted into the movable block positioned in the base and movably connected with the base.
The invention relates to a method for detecting the insulating property of a power transmission line cable, which comprises the following steps:
step 1: moving the winch and the cable sleeve to a place where the cable is to be laid, fixing a plurality of detection ports on the detection platform at equal intervals, and rotating the detection platform by taking the movable block as a rotation axis to enable the detection platform to be arranged in an inclined manner;
and 2, step: rotating a long supporting rod and a short supporting rod at the bottom of a detection platform by taking a rotating block as a rotating axis, enabling the long supporting rod and the short supporting rod to be vertically arranged at 90 degrees with a laying surface, enabling a vertical cone to be in contact with the laying surface, then enabling two connecting sleeves to move to the inner sides of the two detection platforms, enabling the rotating blocks of the first connecting sleeve and the long supporting rod to be located in the same horizontal direction, and enabling the rotating blocks of the second connecting sleeve and the short supporting rod to be located in the same horizontal direction;
and step 3: respectively pulling clamping rods at two ends of a first connecting sleeve towards two sides to enable one end of each clamping rod to penetrate through the detection platform and be clamped with the rotating block at the top of the long supporting rod through the anti-falling ring, respectively pulling the clamping rods at two ends of a second connecting sleeve to enable the clamping rods to be clamped with the rotating block at the top of the short supporting rod, then rotating the threaded sleeve to enable the inner surface of the front section of the threaded sleeve to be rotatably connected with the threaded rod, and rotatably connecting the inner surface of the rear section of the threaded sleeve with the connecting sleeves;
and 4, step 4: the front end of the base is used as a supporting point, the rear end of the base is lifted, the base and the detection platform form the same inclination angle, the head of the cable penetrates out of the detection port, the cable is conveyed between the first conveying wheel and the second conveying wheel after penetrating out, the head of the cable is driven by a winch to be pulled by a traction rope, the first detection point and the second detection point on the first conveying wheel and the second conveying wheel detect the insulating property of the cable, the winch works intermittently during detection, when the cable leaks electricity, a detection loop is conducted to an audible and visual alarm to give an alarm, and a controller drives the swing type line drawing mechanism to draw and mark the cable;
and 5: and the detected cable is driven by the winch to reset and roll the traction rope, and the cable is pulled to move and be laid to a place to be laid.
Further, the step still includes that the controller sends audible-visual annunciator's alarm information to cable monitoring end through CAN bus network, and the cable detection end is cell-phone or PC, is looked over by the staff very first time.
The invention has the beneficial effects that:
1. the insulating properties of realizing the cable through setting up testing platform and detection port detects, can realize accurate detection to the cable part that appears the damaged electric leakage, during the detection, detects the different positions of cable through setting up a plurality of detection ports, through the continuous rolling of hoist engine to the cable simultaneously, can carry out effectual detection to the position of whole cable before cable laying, does not influence the process that cable laying.
2. Through setting up a plurality of detection ports, the last controller that has set up of detection port, when detection circuit switched on, the controller sent drive signal to oscillating drawing mechanism, and the steering wheel drives the pendulum rod and swings to carry out the setting-out mark to the cable position that detects out the problem, further handle by the staff, audible-visual annunciator reports to the police very first time simultaneously and reminds the staff, can transmit alarm information to cable monitoring end after the controller reports to the police, avoids the careless omission of information.
3. Base cooperation testing platform, because testing platform runs through the base, remove testing platform to one side earlier, cooperation movable block adjusts testing platform's angle as the axis of rotation, make testing platform be the slope form setting, and testing platform's top supports the transport vechicle top surface, lift base rear end again, make base and testing platform be same inclination, make the base slide down along testing platform, make the cable sheathing arrive and lay the face, the same reverse base that promotes, also can be used to the receipts fortune work of cable sheathing, the structure of cable sheathing transport has been simplified.
4. Through setting up supporting mechanism, after testing platform is fixed, as the axis of rotation through the turning block, to the rotatory long bracing piece in the isolation slot outside, to accomodating the rotatory short bracing piece in the slot outside, can not break away from with the testing platform who corresponds when making long bracing piece or short bracing piece rotate through the anticreep ring, make long bracing piece all be 90 perpendicular settings with short bracing piece, found the awl and lay the face contact, effectively support testing platform, testing platform's stability has been improved, the potential safety hazard in the cable sheathing handling has been reduced, the problem that the bracing piece is lost has been avoided simultaneously.
5. Through setting up stop gear cooperation supporting mechanism, make the movable block of first adapter sleeve and long bracing piece be located same fore-and-aft direction, the movable block of second adapter sleeve and short bracing piece is located same fore-and-aft direction, respectively to both sides pulling joint pole, make the one end of joint pole run through testing platform and anticreep ring and turning block joint, then make the anterior segment internal surface of thread bush rotate with the threaded rod and be connected, the back end internal surface and the adapter sleeve of thread bush rotate and are connected, realize the angle fixation of long bracing piece and short bracing piece, can carry on spacingly to the bracing piece fast, the fixed efficiency of bracing piece has been improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of a device for detecting the insulation property of a power transmission line cable according to the present invention;
fig. 2 is a schematic structural diagram of the detection device for the insulation performance of the cable of the power transmission line in the state of base detection;
fig. 3 is a schematic structural view of a cable detection port in the device for detecting the insulation property of a power transmission line cable according to the present invention;
FIG. 4 is a schematic structural diagram of the detection platform in the device for detecting the insulation performance of the power transmission line cable according to the present invention after installation;
fig. 5 is a circuit connection diagram of a controller in the apparatus for detecting the insulation performance of a power transmission line cable according to the present invention;
FIG. 6 is a circuit connection diagram of a cable monitoring end in the device for detecting the insulation property of a power transmission line cable according to the present invention;
FIG. 7 is a schematic bottom structure diagram of a detection platform in the device for detecting the insulation performance of the power transmission line cable of the present invention;
fig. 8 is a schematic structural diagram of a supporting mechanism in the device for detecting the insulation performance of the cable of the power transmission line;
fig. 9 is a structural exploded view of a limiting mechanism in the device for detecting the insulation performance of the power transmission line cable.
In the figure: 1. a base; 2. detecting a platform; 3. a cable cover; 4. a cable; 5. a winch; 6. a hauling rope; 7. a detection port; 8. a support mechanism; 9. a limiting mechanism; 10. a movable block; 11. an isolation trench; 12. a trough body; 13. a long support bar; 14. a short support bar; 15. rotating the block; 16. the anti-drop ring; 17. a clamping groove; 18. erecting a cone; 19. connecting sleeves; 20. a threaded rod; 21. a slider; 22. a clamping and connecting rod; 23. a threaded sleeve; 24. a support frame; 25. A first detection point; 26. Detecting the frame body; 27. A second detection point; 28. A second transfer wheel; 29. An audible and visual alarm; 30. A marking pen; 31. A steering engine; 32. A swing rod; 33. A camera; 34. A first transfer wheel.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, characteristics and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Example 1:
as shown in fig. 1-4, a device for detecting insulation performance of a power transmission line cable includes two bases 1 and two winches 5, which are symmetrically disposed, the bottom surface of each base 1 is slidably connected with two detection platforms 2, in this embodiment, the two detection platforms 2 are disposed, the two detection platforms 2 CAN simultaneously detect the cable, the opposite sides are respectively disposed with the winches to roll the cable, which CAN further improve detection efficiency and cable laying efficiency, and one opposite side of each base 1 is fixedly connected with a cable sheath 3 above the cable sheath 3, the outer side of the cable sheath 3 is wound with the cable 4, the outer side of the winches 5 is provided with a traction rope 6, the detection platform 2 is provided with a plurality of detection ports 7, each detection port 7 includes a detection frame 26, the inner side of the detection frame 26 is connected with a first transmission wheel 34 and a second transmission wheel 28, the first transmission wheel 34 and the second transmission wheel 28 are disposed vertically and have a placing gap therebetween, the lower surface of the first transmission wheel 34 is provided with a first detection point 25, the upper surface of the second transmission wheel 28 is provided with a second detection point 27, the first detection point 25 and the second detection point 27 are conductive media or the detection point 27, the first detection point 25 and the second transmission wheel 28 are disposed with a swinging type detection point, the CAN controller interface 27, the cable control mechanism is connected with a cable control interface, the detection mechanism is connected with a second detection mechanism, the acousto-optic cable control interface control mechanism is connected with a support frame 24, the acousto-optic cable control mechanism, the detection mechanism, the acousto-optic cable control interface control mechanism.
As shown in fig. 4-6, a plurality of detection points are arranged along the cable 4, and a network is connected between the detection points, so that the position of a fault point can be accurately located by detecting the leakage condition of the cable through the detection points, and a worker can know and take corresponding measures at the first time.
As shown in fig. 5, a detection power supply is provided in the detection circuit, two ends of the detection power supply are respectively connected to a first detection point 25 and a second detection point 27, the first detection point 25 and the second detection point 27 are conductive media or conductive coils, the first detection point 25 and the second detection point 27 are connected to form the detection circuit, the detection power supply is a battery, and an audible and visual alarm 29 and a controller are connected to a detection loop of the detection circuit.
The swing type line drawing mechanism comprises a swing rod 32, a marking pen 30 is connected to the swing rod 32, a steering engine 31 is connected to the swing rod 32, and the steering engine 31 is connected with a controller. The supporting frame 24 is also provided with a camera 33, and the camera 33 is connected with the controller.
As shown in fig. 7-8, the bottom surface of each detection platform 2 is provided with a supporting mechanism 8, two opposite sides of each detection platform 2 are provided with a limiting mechanism 9 by both ends, one end of each detection platform 2 is provided with a movable block 10 by both sides, a plurality of isolation grooves 11 are arranged at the bottom of each detection platform 2 by one end, each isolation groove 11 comprises a groove body 12, and the detection port 7 is arranged in each groove body 12.
In this embodiment, in order to improve the stability that testing platform 2 supported, reduce the potential safety hazard in the 3 handling of cable jacket and be provided with supporting mechanism 8, supporting mechanism 8 includes two long bracing pieces 13 that the symmetry set up and two short bracing pieces 14 that the symmetry set up, the equal fixedly connected with turning block 15 in top of long bracing piece 13 and short bracing piece 14, the equal fixedly connected with anticreep ring 16 in both sides of turning block 15, the inside of anticreep ring 16 runs through and is provided with joint groove 17, the equal fixedly connected with in bottom of long bracing piece 13 and short bracing piece 14 stands awl 18.
As shown in fig. 9, the limiting mechanism 9 can quickly fix the long supporting rod 13 and the short supporting rod 14, so as to improve the carrying efficiency of the cable sheath 3, the limiting mechanism 9 includes a connecting sleeve 19, both ends of the connecting sleeve 19 are slidably connected with a threaded rod 20, one end of the threaded rod 20 is fixedly connected with a clamping rod 22, the other end of the threaded rod 20 is fixedly connected with a sliding block 21, and a threaded sleeve 23 is arranged outside the threaded rod 20.
In this embodiment, pass detection port 7 by haulage rope 6 pulling cable 4 and detect, hoist engine 5 is intermittent type formula work when detecting, and hoist engine 5 rotates a period of time of pausing after the round, detects pull-out cable 4, rotates the round again after the detection is accomplished, detects newly pull-out cable 4, and cable 4 convolutes on hoist engine 5 after the detection is accomplished, and hoist engine 5 lays work to cable 4 again, and the one end of haulage rope 6 is to tying up the setting with cable 4's front end.
In this embodiment, the anti-slip ring 16 is located inside the groove body 12, and the anti-slip ring 16 is movably connected with the groove body 12, the cross section of the clamping groove 17 is in a square arrangement, the long support rod 13 or the short support rod 14 cannot be separated from the corresponding detection platform 2 when rotating through the anti-slip ring 16, and the clamping groove 17 in the square arrangement is just matched with the clamping rod 22.
In this embodiment, the threaded rod 20 and the connecting sleeve 19 are fixed by the threaded sleeve 23, the sliding block 21 is slidably connected with the connecting sleeve 19, the cross section of the clamping rod 22 is square, one end of the clamping rod 22 penetrates through the detection platform 2 and the anti-drop ring 16 and is clamped with the rotating block 15, the threaded sleeve 23 is divided into a front section and a rear section, the inner surface of the front section of the threaded sleeve 23 is rotatably connected with the threaded rod 20, and the inner surface of the rear section of the threaded sleeve 23 is rotatably connected with the connecting sleeve 19.
The working principle of the embodiment is as follows: taking the front end of the base 1 as a supporting point, lifting the rear end of the base 1 to enable the base 1 and the detection platform 2 to form the same inclination angle, enabling the head of the cable 4 to penetrate out of the detection port 7, conveying the cable between the first conveying wheel 34 and the second conveying wheel 28 after the cable penetrates out, detecting the insulation performance of the cable 4 by the first detection point 25 and the second detection point 27 on the first conveying wheel 34 and the second conveying wheel 28, conducting the audible and visual alarm 29 by a detection loop to alarm when the cable 4 leaks electricity, and driving the oscillating line drawing mechanism to draw a line and mark on the cable 4 by the controller; the detected cable is reset and wound by a traction rope 6 driven by a winch 5, and the cable 4 is pulled to move and be laid to a place to be laid. The controller sends audible-visual annunciator's alarm information to cable monitoring end through CAN bus network, and the cable detection end is cell-phone or PC, is looked over by the staff very first time.
Example 2:
the invention relates to a method for detecting the insulating property of a power transmission line cable, which comprises the following steps:
step 1: moving the winch 5 and the cable sleeve 3 to a place where a cable is to be laid, fixing a plurality of detection ports 7 on the detection platform 2 at equal intervals, sliding the detection platform 2 outwards, and rotating the detection platform 2 by taking the movable block 10 as a rotation axis to enable the detection platform 2 to be arranged in an inclined manner;
step 2: rotating a long support rod 13 and a short support rod 14 at the bottom of a detection platform 2 by taking a rotating block 15 as a rotating axis, so that the long support rod 13 and the short support rod 14 are both arranged vertically to a laying surface by 90 degrees, a vertical cone 18 is contacted with the laying surface, then two connecting sleeves 19 are moved to the inner sides of the two detection platforms 2, the first connecting sleeve 19 and the rotating block 15 of the long support rod 13 are positioned in the same horizontal direction, and the second connecting sleeve 19 and the rotating block 15 of the short support rod 14 are positioned in the same horizontal direction;
and step 3: respectively pulling the clamping rods 22 at the two ends of the first connecting sleeve 19 towards the two sides to enable one end of each clamping rod 22 to penetrate through the detection platform 2 and the anti-falling ring 16 to be clamped with the rotating block 15 at the top of the long supporting rod 13, respectively pulling the clamping rods 22 at the two ends of the second connecting sleeve 19 to be clamped with the rotating block 15 at the top of the short supporting rod 14, then rotating the threaded sleeve 23 to enable the inner surface of the front section of the threaded sleeve 23 to be rotatably connected with the threaded rod 20, and rotatably connecting the inner surface of the rear section of the threaded sleeve 23 with the connecting sleeve 19;
and 4, step 4: taking the front end of the base 1 as a supporting point, lifting the rear end of the base 1 to enable the base 1 and the detection platform 2 to form the same inclination angle, enabling the head of the cable 4 to penetrate out of the detection port 7, enabling the cable to pass through the first transmission wheel 34 and the second transmission wheel 28, detecting the insulation performance of the cable 4 through the first detection point 25 and the second detection point 27 on the first transmission wheel 34 and the second transmission wheel 28, when the cable 4 leaks electricity, enabling the detection loop to conduct the audible and visual alarm 29 to give an alarm, and driving the swing type line drawing mechanism to draw a line mark on the cable 4 through the controller;
and 5: the detected cable is reset and wound by a traction rope 6 driven by a winch 5, and the cable 4 is pulled to move and be laid to a place to be laid.
The method comprises the steps that a controller sends alarm information of an audible and visual alarm to a cable monitoring end through a CAN bus network, and the cable monitoring end is a mobile phone or a PC and is checked by workers at the first time.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.
Claims (6)
1. The utility model provides a transmission line cable insulation performance detection device which characterized in that: the detection device comprises two bases (1) and a winch (5) which are symmetrically arranged, wherein the bottom surface of each base (1) is connected with a detection platform (2) in a sliding manner, one opposite side of each base (1) is fixedly connected with a cable sleeve (3) by the upper part, the outer side of each cable sleeve (3) is wound with a cable (4), the outer side of each winch (5) is provided with a traction rope (6), the detection platform (2) is provided with a plurality of detection ports (7), each detection port (7) comprises a detection frame body (26), the inner side of each detection frame body (26) is connected with a first transmission wheel (34) and a second transmission wheel (28), the first transmission wheel (34) and the second transmission wheel (28) are arranged up and down, a placement gap is arranged between the first transmission wheel (34) and the second transmission wheel (28), the lower surface of each first transmission wheel (34) is provided with a first detection point (25), the upper surface of each second transmission wheel (28) is provided with a second detection point (27), the first detection point (25) and the second detection point (27) are connected with a detection circuit, the detection points (25) penetrate out of the cables and contact with the first detection point (25) and the second detection line (24), a swing type detection mechanism is arranged above the support frame body (24), and a swing type detection mechanism is arranged on the support frame body (24), the controller is connected with an audible and visual alarm (29), the controller is also connected with a CAN interface circuit, and the controller realizes data communication with the cable monitoring end through the CAN interface circuit; a detection power supply is arranged in the detection circuit, two ends of the detection power supply are respectively connected with a first detection point (25) and a second detection point (27), and the audible and visual alarm (29) and the controller are connected to a detection loop of the detection circuit;
the bottom surface of the detection platform (2) is provided with a supporting mechanism (8), the opposite sides of the two detection platforms (2) are provided with limiting mechanisms (9) by two ends, one end of each detection platform (2) is fixedly connected with a movable block (10) by two sides, the bottom of each detection platform (2) is provided with a plurality of isolation grooves (11) by one end, and each isolation groove (11) comprises a groove body (12);
the supporting mechanism (8) comprises two long supporting rods (13) which are symmetrically arranged and two short supporting rods (14) which are symmetrically arranged, the tops of the long supporting rods (13) and the tops of the short supporting rods (14) are fixedly connected with rotating blocks (15), two sides of each rotating block (15) are fixedly connected with anti-falling rings (16), clamping grooves (17) penetrate through the anti-falling rings (16), the bottoms of the long supporting rods (13) and the bottoms of the short supporting rods (14) are fixedly connected with vertical cones (18), the anti-falling rings (16) are located in the groove body (12), the anti-falling rings (16) are movably connected with the groove body (12), and the transverse section of each clamping groove (17) is in square arrangement;
stop gear (9) are including adapter sleeve (19), and the equal sliding connection in both ends of adapter sleeve (19) has threaded rod (20), the one end fixedly connected with joint pole (22) of threaded rod (20), and the other end fixedly connected with sliding block (21) of threaded rod (20), and the outside of threaded rod (20) is provided with thread bush (23), sliding block (21) and adapter sleeve (19) sliding connection, the cross-section of joint pole (22) is the square setting, and the one end of joint pole (22) runs through behind testing platform (2) and anticreep ring (16) and is the joint setting with turning block (15), and thread bush (23) divide into two sections from beginning to end, and the anterior segment internal surface and threaded rod (20) of thread bush (23) rotate to be connected, and the back end internal surface and adapter sleeve (19) of thread bush (23) rotate to be connected.
2. The transmission line cable insulation performance detection device of claim 1, characterized in that: the swing type line drawing mechanism comprises a swing rod (32), a marking pen (30) is connected to the swing rod (32), a steering engine (31) is connected to the swing rod (32), and the steering engine (31) is connected with the controller.
3. The transmission line cable insulation performance detection device of claim 1, characterized in that: the support frame (24) on still be equipped with camera (33), camera (33) connection director.
4. The transmission line cable insulation performance detection device of claim 1, characterized in that: one end of the traction rope (6) is tied up with the front end of the cable (4), the movable block (10) is inserted into the base (1), and the movable block (10) is movably connected with the base (1).
5. The insulation performance detection method of the insulation performance detection device for the power transmission line cable according to any one of claims 1 to 4, characterized by comprising the following steps:
step 1: the method comprises the following steps of moving a winch (5) and a cable sleeve (3) to a place where a cable is to be laid, fixing a plurality of detection ports (7) on a detection platform (2) at equal intervals, and rotating the detection platform (2) by taking a movable block (10) as a rotation axis to enable the detection platform (2) to be arranged in an inclined manner;
step 2: the long supporting rod (13) and the short supporting rod (14) at the bottom of the detection platform (2) are rotated by taking the rotating block (15) as a rotating axis, the long supporting rod (13) and the short supporting rod (14) are both arranged perpendicular to the laying surface at an angle of 90 degrees, the vertical cone (18) is contacted with the laying surface, then the two connecting sleeves (19) are moved to the inner sides of the two detection platforms (2), the rotating block (15) of the first connecting sleeve (19) and the long supporting rod (13) are positioned in the same horizontal direction, and the rotating block (15) of the second connecting sleeve (19) and the rotating block (15) of the short supporting rod (14) are positioned in the same horizontal direction;
and step 3: respectively pulling clamping rods (22) at two ends of a first connecting sleeve (19) towards two sides to enable one end of each clamping rod (22) to penetrate through the detection platform (2) and the anti-falling ring (16) to be clamped with the rotating block (15) at the top of the long supporting rod (13), then respectively pulling the clamping rods (22) at two ends of a second connecting sleeve (19) to be clamped with the rotating block (15) at the top of the short supporting rod (14), then rotating the threaded sleeve (23) to enable the inner surface of the front section of the threaded sleeve (23) to be rotatably connected with the threaded rod (20), and rotatably connecting the inner surface of the rear section of the threaded sleeve (23) with the connecting sleeves (19);
and 4, step 4: the front end of a base (1) is used as a supporting point, the rear end of the base (1) is lifted, the base (1) and a detection platform (2) form the same inclination angle, the head of a cable (4) penetrates out of a detection port (7), the cable (4) penetrates out to be transmitted between a first transmission wheel (34) and a second transmission wheel (28), the head of the cable (4) is driven by a winch (5) to pull a traction rope (6), a first detection point (25) and a second detection point (27) on the first transmission wheel (34) and the second transmission wheel (28) detect the insulation performance of the cable (4), the winch (5) works intermittently during detection, when the cable (4) leaks electricity, a detection loop conducts an audible and visual alarm (29) to give an alarm, and a controller drives a swing type line drawing mechanism to draw lines and mark the cable (4);
and 5: the detected cable is reset and wound by the traction rope (6) driven by the winch (5), and the cable (4) is pulled to move and be laid to a place to be laid.
6. The insulation performance detection method of the insulation performance detection device of the power transmission line cable according to claim 5, characterized in that the step further comprises the step that the controller sends alarm information of the audible and visual alarm to a cable monitoring end through a CAN bus network, wherein the cable monitoring end is a mobile phone or a PC and is checked by a worker at the first time.
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