CN116736053A - Power line detection device for distributed photovoltaic power generation - Google Patents
Power line detection device for distributed photovoltaic power generation Download PDFInfo
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- CN116736053A CN116736053A CN202310692483.5A CN202310692483A CN116736053A CN 116736053 A CN116736053 A CN 116736053A CN 202310692483 A CN202310692483 A CN 202310692483A CN 116736053 A CN116736053 A CN 116736053A
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- fixedly connected
- cable
- top surface
- roller
- supporting table
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- 238000001514 detection method Methods 0.000 title claims abstract description 104
- 238000010248 power generation Methods 0.000 title claims abstract description 24
- 238000004804 winding Methods 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 28
- 238000005096 rolling process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 4
- 230000013011 mating Effects 0.000 description 4
- 239000003550 marker Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
Classifications
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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
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The application relates to the technical field of power line detection, and particularly discloses a power line detection device for distributed photovoltaic power generation, which comprises a base; a supporting table is arranged on the top surface of the base; the top surface of the supporting table is provided with a top plate; the bottom surface of the top plate is fixedly connected with a first connecting block and a second connecting block; the bottom surface of the first connecting block is fixedly connected with a first detection contact piece; the bottom surface of the second connecting block is fixedly connected with a second detection contact; a power supply and an alarm lamp power supply are arranged on the side wall of the supporting table and are electrically connected with the alarm lamp; the alarm lamp is electrically connected with the first detection contact piece; the power supply is electrically connected with the second detection contact; the top surface of the supporting table is provided with a power mechanism; the power mechanism can drive the first detection contact piece and the second detection contact piece to move downwards to be in contact with the cable; the power mechanism drives the first detection contact piece and the second detection contact piece to be in contact with the cable, so that the power supply, the alarm lamp and the cable form an electrified loop, and the detection of the insulation performance of the cable is realized.
Description
Technical Field
The application relates to the technical field of power line detection, in particular to a power line detection device for distributed photovoltaic power generation.
Background
The distributed photovoltaic power generation refers to a distributed power generation system which adopts a photovoltaic module to directly convert solar energy into electric energy, the distributed photovoltaic power generation system not only can effectively improve the generated energy of a photovoltaic power station with the same scale, but also can effectively solve the loss problem of electric power in boosting and long-distance transportation, and most of electric power lines of the distributed photovoltaic power generation system are cables, so that the cables are required to be paved in the construction process of the distributed photovoltaic power generation system.
In the prior art, after the cable is transported to a construction site, a worker directly lays the cable and does not detect the cable, but the cable is inevitably damaged in the delivery and transportation processes, so that the cable loses insulation performance, and after the cable is installed, the damaged part is easy to generate electric leakage in the operation process, so that a large potential safety hazard exists.
Disclosure of Invention
The application provides a power line detection device for distributed photovoltaic power generation, which is provided with an electrifying loop formed among a cable to be detected, a power supply and an alarm lamp, wherein the detection work of the insulating property of the cable is realized by observing the lighting condition of the alarm lamp, and the possibility of electric leakage phenomenon after the cable is paved is reduced.
The application provides a power line detection device for distributed photovoltaic power generation, which adopts the following technical scheme:
a power line detection device for distributed photovoltaic power generation comprises a base; a supporting table for placing cables is arranged on the top surface of the base; a top plate is arranged on the top surface of the supporting table; the bottom surface of the top plate is fixedly connected with a first connecting block and a second connecting block; the bottom surface of the first connecting block is fixedly connected with a first detection contact piece; the bottom surface of the second connecting block is fixedly connected with a second detection contact; a power supply and an alarm lamp are arranged on the side wall of the supporting table; the power supply is electrically connected with the alarm lamp; the alarm lamp is electrically connected with the first detection contact piece; the power supply is electrically connected with the second detection contact piece; a power mechanism is arranged on the top surface of the supporting table; the power mechanism can drive the first detection contact piece and the second detection contact piece to move downwards to be in contact with the cable.
By adopting the technical scheme, when the insulation performance of the cable is detected, the cable is placed on the supporting table, and the top plate, the first connecting block and the second connecting block are driven to move downwards by the power mechanism, so that the first detection contact piece and the second detection contact piece are in contact with the surface of the cable; when the cable is damaged, a loop formed by the power supply, the alarm lamp, the first detection contact piece and the second detection contact piece is conducted, and the alarm lamp is turned on; when the cable is not damaged, the alarm lamp is not on, the damage condition of the cable to be tested can be visually observed by a worker through observing the lighting condition of the alarm lamp, the leakage phenomenon is caused after the damaged cable is paved and installed, and the potential safety hazard of construction is reduced.
Preferably, the power mechanism comprises a supporting frame and an electric push rod; the support frame is fixedly connected to the top surface of the support table; the electric push rod is arranged on the support frame, and the output end of the electric push rod is fixedly connected with the top surface of the top plate.
Through adopting above-mentioned technical scheme, when detecting the insulating properties of cable, place the cable on the brace table, start electric putter and drive the backing plate and move down, the first detection contact piece on the first connecting block and the second detection contact piece on the second connecting block are with cable surface contact to form the electrical loop between cable, power and the alarm lamp of position between the first detection contact piece and the second detection contact piece, detect the insulating properties of cable through observing the conductive condition in electrical loop.
Preferably, the bottom surface of the top plate is fixedly connected with an air cylinder; the output end of the cylinder is fixedly connected with a connecting plate; a first yielding port is arranged on the first connecting block; a second yielding port is arranged on the second connecting block; two ends of the connecting plate respectively penetrate through the first abdicating opening and the second abdicating opening and then extend to one sides of the first connecting block and the second connecting block, and marking pens capable of being contacted with the cables are fixedly connected at two ends of the connecting plate.
Through adopting above-mentioned technical scheme, when the cable between first detection contact and the second detection contact appears damaging, the cylinder drives the connecting plate and moves down, and the connecting plate moves down the in-process and drives the marking pen at connecting plate both ends and move down and contact with the cable, and the marking pen marks the cable damaged position, and the follow-up staff of being convenient for handles the cable damaged position.
Preferably, a controller is arranged on the supporting table; the power supply is electrically connected with the controller; the second detection contact is electrically connected with the controller; the controller is electrically connected with the air cylinder, and the controller can control the air cylinder to stretch out and draw back.
By adopting the technical scheme, when the cable between the first detection contact and the second detection contact is damaged, the power supply, the alarm lamp, the controller, the loop formed by the first detection contact and the second detection contact are conducted, and the controller controls the air cylinder to drive the connecting plate to move downwards through the electric signal, so that the marking pen is caused to mark the damaged position of the cable; when the cable between the first detection contact and the second detection contact is not damaged, the power supply, the alarm lamp, the controller, the loop formed by the first detection contact and the second detection contact are not conducted, and the marker pen can not mark the cable.
Preferably, the unreeling frame positioned at one side of the supporting table is fixedly connected to the top surface of the base; a first motor is arranged on the side wall of the unreeling frame; the unreeling roller is fixedly connected to the output end of the first motor; a winding frame positioned at one side of the supporting table far away from the unreeling frame is fixedly connected to the top surface of the base; the winding frame is provided with a second motor; and the output end of the second motor is fixedly connected with a winding roller.
Through adopting above-mentioned technical scheme, pull out the cable one end of winding on unreeling roller around establishing on the wind-up roll, start first motor and second motor and will unreel the cable rolling on the roller to the wind-up roll gradually on, the cable of rolling removes on the brace table surface to be convenient for realize carrying out continuous detection work to the cable.
Preferably, the top surface of the supporting table is provided with a through groove for accommodating the cable; the through groove is positioned at the bottoms of the first detection contact piece and the second detection contact piece.
Through adopting above-mentioned technical scheme, the setting of logical groove is located and is placed the cable on the platform and carry out spacingly for the cable is difficult for taking place the skew at the in-process of rolling, and the marker of being convenient for carries out marking work on the cable surface.
Preferably, two pairs of limiting frames are arranged on the top surface of the base; the two pairs of limiting frames are respectively positioned at two sides of the supporting table, and the inner side walls of the limiting frames are rotationally connected with a first roller and a second roller positioned at the top of the first roller; the outer circumferential surface of the first roller is provided with a first annular concave part; the outer circumferential surface of the second roller is provided with a second annular concave part; the first annular recess and the second annular recess cooperate to form a channel through which a cable may pass.
Through adopting above-mentioned technical scheme, pull out the head of the cable of winding on unreeling roller for the cable head passes the passageway between first gyro wheel and the second gyro wheel back and twines on unreeling roller, at the rolling in-process of cable, first annular depressed part and second annular depressed part and cable surface contact, leads spacing to the cable through first annular depressed part and second annular depressed part, reduces the cable and takes place the possibility of skew when sliding on the brace table, improves the degree of accuracy of testing result.
Preferably, the top surface of the base is fixedly connected with a sleeve positioned on one side of the placing table close to the unreeling frame; the inner side wall of the sleeve is rotationally connected with a sleeve; the cleaning brush is arranged on the inner side wall of the sleeve, one end of the sleeve extends to the outside of the sleeve, and a gear ring is fixedly connected to the outer peripheral surface of the sleeve extending to the outside of the sleeve; the top surface of the base is provided with a driving mechanism capable of driving the gear ring to rotate.
Through adopting above-mentioned technical scheme, in the process that cable rolling detected, actuating mechanism drove the ring gear and rotates, and the ring gear rotates in-process and drives sleeve pipe and cleaning brush and rotate, and the cleaning brush cleans the cable surface, reduces the cable and detects the influence of the impurity that is attached to on the surface to testing result when detecting on the brace table, improves the degree of accuracy of cable insulating properties testing result.
Preferably, the driving mechanism comprises a first rotating shaft and a second rotating shaft; the first rotating shaft is rotationally connected to the top surface of the base, a spur gear meshed with the gear ring is fixedly connected to the outer side wall of the end part, close to the gear ring, of the first rotating shaft, and a first bevel gear is fixedly connected to the outer side wall of the end part, far from the spur gear, of the first rotating shaft; the second rotating shaft is rotationally connected to the top surface of the base, and a second bevel gear meshed with the first bevel gear is fixedly connected to the outer side wall of the end part of the second rotating shaft, which is close to the first bevel gear; the end part of the unreeling roller, which is far away from the first motor, is provided with a transmission assembly which can enable the unreeling roller to drive the second rotating shaft to rotate.
Through adopting above-mentioned technical scheme, at the in-process that the cable unreels and detects, unreels the roller and passes through drive assembly and drive second pivot and second bevel gear rotation, under the meshing cooperation of first bevel gear and second bevel gear, the second pivot drives first pivot and spur gear rotation, impels the sleeve pipe to rotate under the meshing cooperation of spur gear and ring gear.
Preferably, the transmission assembly comprises a first pulley, a second pulley and a belt; the first belt wheel is fixedly connected to the end part of the unreeling roller, which is far away from the first motor; the second belt wheel is fixedly connected to the end part of the second rotating shaft, which is far away from the second bevel gear; the belt is sleeved outside the first belt pulley and the second belt pulley, and the belt enables the first belt pulley and the second belt pulley to be linked.
Through adopting above-mentioned technical scheme, unreel the roller and rotate in-process and drive first band pulley rotation, under the cooperation work of first band pulley, second band pulley and belt, unreel the roller and drive the second pivot rotation, realize unreeling the transmission of roller rotation in-process kinetic energy, reduce power component's use.
In summary, the application has the following beneficial effects:
1. when the insulation performance of the cable is detected, the first detection contact piece and the second detection contact piece are caused to contact the cable, so that an electrified loop is formed by the power supply, the alarm lamp and the cable, and when the cable between the first detection contact piece and the second detection contact piece is damaged, the cable loses the insulation performance, and the electrified loop conducts the alarm lamp to emit light; when the cable between the first detection contact and the second detection contact is not damaged, the alarm lamp does not emit light, and a worker judges the insulation performance of the cable by observing the light emitting condition of the alarm lamp, so that the detection mode is simple and convenient, and the worker can intuitively know the detection result;
2. when the cable is damaged, the electrified loop is conducted, the controller controls the air cylinder to move through the electrical number, the air cylinder pushes the connecting plate to move downwards, the marking pen is driven to move downwards to contact the cable in the downwards moving process of the connecting plate, the marking pen marks the damaged position of the cable, and further workers can conveniently process the damaged position of the cable;
3. the first motor drives the unreeling roller to rotate the process and drives the second rotating shaft to rotate through the transmission component, under the meshing cooperation of the first bevel gear and the second bevel gear, the second rotating shaft drives the first rotating shaft and the spur gear to rotate, and the spur gear drives the gear ring and the sleeve to rotate in the rotating process, so that the cleaning brush arranged in the sleeve is used for cleaning the outer surface of the cable, the cable is enabled to be kept clean when the insulating property is detected, the influence of the surface adhesion of the cable on the insulating property is reduced, and the accuracy of the detection result is improved.
Drawings
Fig. 1 is a schematic structural diagram of a power line detection device for distributed photovoltaic power generation;
FIG. 2 is a schematic view of the mating structure of the support table, top plate and power mechanism of the present application;
FIG. 3 is a schematic view of the mating structure of the top plate, cylinder and marker of the present application;
FIG. 4 is a schematic diagram of the cooperation structure of the limiting frame, the first roller and the second roller in the present application;
FIG. 5 is a schematic view of the mating structure of the sleeve, sleeve and ring gear of the present application;
fig. 6 is a schematic view of the mating structure of the unwind roller, drive mechanism and gear ring of the present application.
Reference numerals illustrate: 1. a base; 2. a support table; 21. a through groove; 3. a top plate; 31. a first connection block; 311. a first detection contact; 312. a first relief port; 32. a second connection block; 321. a second detection contact; 322. a second relief port; 33. a power supply; 34. an alarm lamp; 35. a cylinder; 36. a connecting plate; 361. marking pen; 37. a controller; 4. a power mechanism; 41. a support frame; 42. an electric push rod; 5. unreeling rack; 51. a first motor; 52. an unreeling roller; 6. a winding frame; 61. a second motor; 62. a wind-up roll; 7. a limiting frame; 71. a first roller; 711. a first annular recess; 72. a second roller; 721. a second annular recess; 8. a sleeve; 81. a sleeve; 82. a cleaning brush; 83. a gear ring; 9. a driving mechanism; 91. a first rotating shaft; 911. spur gears; 912. a first bevel gear; 92. a second rotating shaft; 921. a second bevel gear; 93. a transmission assembly; 931. a first pulley; 932. a second pulley; 933. a belt.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper", "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
The application discloses a power line detection device for distributed photovoltaic power generation, which is shown in fig. 1 and 2, and comprises a base 1, an unreeling frame 5, a reeling frame 6 and a supporting table 2; the unreeling frame 5 is fixedly connected to the top surface of the base 1, a first motor 51 is arranged on the outer side wall of the unreeling frame 5, and an unreeling roller 52 in rotary fit with the unreeling frame 5 is fixedly connected to the output end of the first motor 51; the winding frame 6 is fixedly connected to the top surface of the base 1, a second motor 61 is arranged on the outer side wall of the winding frame 6, and the output end of the second motor 61 is fixedly connected with a winding roller 62 which is in running fit with the winding frame 6; the unreeling frame 5 and the reeling frame 6 are respectively positioned at two ends in the length direction of the base 1; the supporting table 2 is fixedly connected to the top surface of the base 1, and the supporting table 2 is positioned between the unreeling frame 5 and the reeling frame 6;
the top of the supporting table 2 is provided with a top plate 3 capable of moving along the vertical direction, and the bottom surface of the top plate 3 is fixedly connected with a first connecting block 31 and a second connecting block 32; the bottom surface of the first connecting block 31 is fixedly connected with a first detection contact 311, the bottom surface of the second connecting block 32 is fixedly connected with a second detection contact 321, the side wall of the supporting table 2 is fixedly connected with a power supply 33 and an alarm lamp 34, the power supply 33 is electrically connected with the alarm lamp 34 through a first wire, the alarm lamp 34 is electrically connected with the first detection contact 311 through a second wire, and the power supply 33 is electrically connected with the second detection contact 321; the supporting table 2, the first connecting block 31 and the second connecting block 32 are all made of insulating materials.
Starting the first motor 51 and the second motor 61 to gradually wind the cable wound on the unreeling roller 52 onto the reeling roller 62, and conveying the cable through the surface of the supporting table 2 in the reeling and unreeling process of the cable; when the insulation performance of the conveyed cable is required to be detected, the top plate 3 drives the first connecting block 31 and the second connecting block 32 to move downwards, so that the first detection contact piece 311 and the second detection contact piece 321 are in contact with the cable conveyed on the supporting table 2, and when the cable between the first detection contact piece 311 and the second detection contact piece 321 is damaged, an electrified loop formed by the power supply 33, the alarm lamp 34 and the cable is conducted, and the alarm lamp 34 emits light; when the cable does not appear damaging, alarm lamp 34 is not bright, is convenient for the staff to directly perceived the insulating properties of the cable that awaits measuring through observing the luminous condition of alarm lamp 34, reduces the cable and lays the back and appear the electric leakage condition to reduce the potential safety hazard of construction.
As shown in fig. 2 and 3, a controller 37 is fixedly connected to the side wall of the supporting platform 2, the power supply 33 is electrically connected to the controller 37 through a third wire, the controller 37 is electrically connected to the second detecting contact 321 through a fourth wire, an air cylinder 35 located between the first connecting block 31 and the second connecting block 32 is fixedly connected to the bottom surface of the top plate 3, the controller 37 is electrically connected to the air cylinder 35 through a fifth wire, the controller 37 controls the opening and closing of the air cylinder 35, the output end of the air cylinder 35 is fixedly connected with a connecting plate 36, a first yielding opening 312 in the vertical direction is arranged on the first connecting block 31, a second yielding opening 322 in the vertical direction is arranged on the second connecting block 32, one end of the connecting plate 36, close to the first connecting block 31, passes through the first yielding opening 312 and then extends to one side, far away from the second connecting block 32, of the connecting plate 36 passes through the second yielding opening 322, and the ends, respectively, of the connecting plate 36, passing through the first yielding opening 312 and the second yielding opening 322 are fixedly connected with marks 361.
When the power-on circuit is conducted, the controller 37 controls the air cylinder 35 to start, the air cylinder 35 drives the connecting plate 36 to slide downwards, so that the marking pens 361 arranged at two ends of the connecting plate 36 are in contact with the surface of the cable, marking pens 361 mark the damaged position of the cable, workers can conveniently process the damaged position of the cable subsequently, and the first yielding port 312 and the second yielding port 322 are arranged to provide space for the downward movement of the connecting plate 36.
As shown in fig. 2 and 3, the top surface of the supporting table 2 is provided with a power mechanism 4 capable of driving the top plate 3 to move along the vertical direction, the power mechanism 4 comprises a supporting frame 41 and an electric push rod 42, the supporting frame 41 is fixedly connected to the top surface of the supporting table 2, the supporting frame 41 is in inverted concavity, the electric push rod 42 is arranged on the top surface of the supporting frame 41, the output end of the electric push rod 42 penetrates through the top side wall of the supporting frame 41 and is fixedly connected to the top surface of the top plate 3, and the output end of the electric push rod 42 is in sliding fit with the top side wall of the supporting frame 41.
When the insulation performance of the cable is detected, the electric push rod 42 is started to drive the top plate 3 to move downwards, the base plate drives the first connecting block 31 and the second connecting block 32 to move downwards, the first detection contact piece 311 and the second detection contact piece 321 are made to contact with the outer surface of the cable, and an electrified loop is formed among the power supply 33, the alarm lamp 34 and the cable, so that the insulation performance of the cable between the first detection contact piece 311 and the second detection contact piece 321 is detected conveniently.
As shown in fig. 1, 2 and 4, the top surface of the supporting table 2 is provided with a through groove 21 for accommodating a cable, the through groove 21 is arranged along the winding direction of the cable, the through groove 21 is positioned at the bottoms of the first detection contact piece 311 and the second detection contact piece 321, the longitudinal section of the through groove 21 is arc-shaped, two pairs of limiting frames 7 are fixedly connected to the top surface of the base 1, the two pairs of limiting frames 7 are respectively positioned at two sides of the supporting table 2, which are close to the unreeling frame 5 and the winding frame 6, the inner side walls of the limiting frames 7 are rotationally connected with first rollers 71, and the outer circumferential surface of the first rollers 71 is provided with first annular concave parts 711 which can be attached to the outer surface of the cable; the limiting frame 7 is rotatably connected with a second roller 72 positioned at the top of the first roller 71, a second annular concave part 721 which can be attached to the outer surface of the cable is arranged on the outer circumferential surface of the second roller 72, and the cable can pass through a channel formed by the cooperation of the first annular concave part 711 and the second annular concave part 721.
In the winding and unwinding process of the cable, the cable is conveyed through the channel between the first roller 71 and the second roller 72, in the conveying process of the cable, the first annular concave part 711 and the second annular concave part 721 limit and guide the cable, the possibility that the cable deviates when sliding on the supporting table 2 is reduced, the through groove 21 arranged on the supporting table 2 further guides and limits the movement of the cable, the insulation performance of the cable is detected in the winding process by the detection device conveniently, and accuracy of detection results is guaranteed.
As shown in fig. 1 and 5, a sleeve 8 through which a cable can pass is fixedly connected to the top surface of the base 1 through a first support plate, the sleeve 8 is positioned between two limiting frames 7 on one side, close to the unreeling frame 5, of the support table 2, the axis of the sleeve 8 is mutually perpendicular to the axis of the unreeling roller 52, a sleeve 81 coaxial with the sleeve 8 is rotationally connected to the inner side wall of the sleeve 8, a cleaning brush 82 which can be contacted with the cable is arranged on the inner circumferential surface of the sleeve 81, one end, close to the unreeling frame 5, of the sleeve 81 extends to the outside of the sleeve 8, a gear ring 83 is fixedly connected to the outer circumferential surface of the end, extending to the outside of the sleeve 8, of the sleeve 81, and a driving mechanism 9 capable of driving the gear ring 83 to rotate is arranged on the top surface of the base 1.
When the driving mechanism 9 drives the gear ring 83 to rotate, the gear ring 83 drives the sleeve 8 to rotate, the cleaning brush 82 arranged on the inner side wall of the sleeve 8 rotates along the outer peripheral surface of the cable to clean the outer surface of the cable, so that the surface of the cable to be detected is kept clean, the influence of impurities adhered to the surface of the cable on the detection result is reduced, and the accuracy of the detection result is improved.
As shown in fig. 1 and 6, the driving mechanism 9 includes a first rotating shaft 91, a second rotating shaft 92 and a transmission assembly 93, the first rotating shaft 91 is rotatably connected to the top surface of the base 1 through a second supporting plate, the first rotating shaft 91 is arranged along the axis direction of the gear ring 83, a spur gear 911 meshed with the gear ring 83 is fixedly connected to the outer side wall of the end portion, close to the gear ring 83, of the first rotating shaft 91, a first bevel gear 912 is fixedly connected to the end portion, far from the spur gear 911, of the first rotating shaft 91, the second rotating shaft 92 is rotatably connected to the top surface of the base 1 through a third supporting plate, the second rotating shaft 92 is positioned at one end, close to the first bevel gear 912, of the first rotating shaft 91, the second rotating shaft 92 is perpendicular to the axis of the first rotating shaft 91, and a second bevel gear 921 meshed with the first bevel gear 912 is fixedly connected to the end portion, close to the first bevel gear 912, of the second rotating shaft 92; the transmission assembly 93 sets up the tip that keeps away from second bevel gear 921 at second pivot 92, and transmission assembly 93 includes first band pulley 931, second band pulley 932 and belt 933, and first band pulley 931 rigid coupling is on the tip lateral wall that unreeling roller 52 kept away from first motor 51, and second band pulley 932 rigid coupling is on the tip lateral wall that second pivot 92 kept away from second bevel gear 921, and belt 933 tensioning cover is established in first band pulley 931 and second band pulley 932 outside, and belt 933 makes first band pulley 931 and second band pulley 932 linkage.
Under the cooperation of the first belt pulley 931, the second belt pulley 932 and the belt 933, the second rotating shaft 92 and the second bevel gear 921 are driven to rotate in the rotation process of the unreeling roller 52, under the meshing cooperation of the first bevel gear 912 and the second bevel gear 921, the second rotating shaft 92 drives the first rotating shaft 91 and the spur gear 911 to rotate, and under the meshing cooperation of the spur gear 911 and the gear ring 83, the gear ring 83 drives the sleeve 8 to rotate, so that the transmission of kinetic energy in the rotation process of the unreeling roller 52 is realized, and the use of driving parts is reduced.
Working principle: when the insulation performance of the cable is detected, the cable wound on the unreeling roller 52 is drawn out, then the cable passes through a channel between the first roller 71 and the second roller 72 and is wound on the reeling roller 62, and the cable on the unreeling roller 52 is wound on the reeling roller 62 step by starting the first motor 51 and the second motor 61; in the winding process of the cable, the first annular concave part 711 and the second annular concave part 721 guide the cable, so that the cable on the supporting table 2 is not easy to deviate when sliding along the inner side wall of the through groove 21, and the cable insulation performance is convenient to detect;
in the winding process of the cable, the electric push rod 42 is started to drive the top plate 3, the first connecting block 31 and the second connecting block 32 to move downwards, so that the first detection contact piece 311 and the second detection contact piece 321 are in contact with the surface of the cable, and the power supply 33, the alarm lamp 34, the controller 37 and the cable between the first detection contact piece 311 and the second detection contact piece 321 form an electrified loop; when the cable is not broken, the energizing circuit is not conducted, and the warning lamp 34 and the controller 37 do not work; when the cable is broken, the electrified loop is conducted, and the alarm lamp 34 is lightened, so that a worker can intuitively observe the detection result; when the power-on loop is conducted, the controller 37 controls the air cylinder 35 to work through an electric signal, the air cylinder 35 drives the connecting plate 36 to move downwards, the marking pens 361 at two ends of the connecting plate 36 are driven to move downwards to contact the cable in the downward moving process of the connecting plate 36, the damaged position of the cable is marked, and the cable damaged position is conveniently processed by subsequent staff;
in the unreeling process of the unreeling roller 52, under the cooperation of the first belt pulley 931, the second belt pulley 932 and the belt 933, the unreeling roller 52 drives the second rotating shaft 92 to rotate, the second rotating shaft 92 drives the second bevel gear 921 to rotate in the rotating process, under the meshing cooperation of the first bevel gear 912 and the second bevel gear 921, the second rotating shaft 92 drives the first rotating shaft 91 and the spur gear 911 to rotate, and the spur gear 911 drives the gear ring 83 and the sleeve 81 to rotate in the rotating process, so that the cleaning brush 82 arranged on the inner side wall of the sleeve 81 cleans the outer surface of a cable in unreeling, the outer surface of the cable is kept clean, the influence of the surface of the cable on insulation performance detection is reduced, and the accuracy of a detection result is improved.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (10)
1. The utility model provides a distributed photovoltaic power generation's power line detection device which characterized in that: comprises a base (1); a supporting table (2) for placing cables is arranged on the top surface of the base (1); a top plate (3) is arranged on the top surface of the supporting table (2); the bottom surface of the top plate (3) is fixedly connected with a first connecting block (31) and a second connecting block (32); the bottom surface of the first connecting block (31) is fixedly connected with a first detection contact piece (311); a second detection contact (321) is fixedly connected to the bottom surface of the second connecting block (32); a power supply (33) and an alarm lamp (34) are arranged on the side wall of the supporting table (2); the power supply (33) is electrically connected with the alarm lamp (34); the alarm lamp (34) is electrically connected with the first detection contact piece (311); the power supply (33) is electrically connected with the second detection contact piece (321); a power mechanism (4) is arranged on the top surface of the supporting table (2); the power mechanism (4) can drive the first detection contact piece (311) and the second detection contact piece (321) to move downwards to be in contact with the cable.
2. The power line detection apparatus for distributed photovoltaic power generation according to claim 1, wherein: the power mechanism (4) comprises a supporting frame (41) and an electric push rod (42); the supporting frame (41) is fixedly connected to the top surface of the supporting table (2); the electric push rod (42) is arranged on the supporting frame (41), and the output end of the electric push rod (42) is fixedly connected with the top surface of the top plate (3).
3. The power line detection apparatus for distributed photovoltaic power generation according to claim 1, wherein: an air cylinder (35) is fixedly connected to the bottom surface of the top plate (3); the output end of the air cylinder (35) is fixedly connected with a connecting plate (36); a first yielding port (312) is arranged on the first connecting block (31); a second yielding port (322) is formed in the second connecting block (32); two ends of the connecting plate (36) respectively penetrate through the first abdicating port (312) and the second abdicating port (322) and then extend to one side of the first connecting block (31) and one side of the second connecting block (32), and marking pens (361) which can be contacted with the cables are fixedly connected to two ends of the connecting plate (36).
4. A distributed photovoltaic power generation power line detection apparatus according to claim 3, wherein: a controller (37) is arranged on the supporting table (2); the power supply (33) is electrically connected with the controller (37); the second detection contact is electrically connected with the controller (37); the controller (37) is electrically connected with the air cylinder (35), and the controller (37) can control the air cylinder (35) to stretch and retract.
5. The power line detection apparatus for distributed photovoltaic power generation according to claim 1, wherein: an unreeling frame (5) positioned at one side of the supporting table (2) is fixedly connected to the top surface of the base (1); a first motor (51) is arranged on the side wall of the unreeling frame (5); the output end of the first motor (51) is fixedly connected with an unreeling roller (52); a winding frame (6) positioned on one side of the supporting table (2) far away from the unreeling frame (5) is fixedly connected to the top surface of the base (1); a second motor (61) is arranged on the winding frame (6); and a winding roller (62) is fixedly connected with the output end of the second motor (61).
6. The power line detection apparatus for distributed photovoltaic power generation according to claim 5, wherein: the top surface of the supporting table (2) is provided with a through groove (21) for accommodating a cable; the through groove (21) is positioned at the bottoms of the first detection contact piece (311) and the second detection contact piece (321).
7. The power line detection apparatus for distributed photovoltaic power generation according to claim 1, wherein: two pairs of limiting frames (7) are arranged on the top surface of the base (1); the two pairs of limiting frames (7) are respectively positioned at two sides of the supporting table (2), and a first roller (71) and a second roller (72) positioned at the top of the first roller (71) are rotatably connected to the inner side wall of the limiting frame (7); a first annular concave part (711) is arranged on the outer circumferential surface of the first roller (71); a second annular concave part (721) is arranged on the outer circumferential surface of the second roller (72); the first annular recess (711) and the second annular recess (721) cooperate to form a channel through which a cable may pass.
8. The power line detection apparatus for distributed photovoltaic power generation according to claim 5, wherein: a sleeve (8) positioned on one side of the placing table close to the unreeling frame (5) is fixedly connected to the top surface of the base (1); the inner side wall of the sleeve (8) is rotationally connected with a sleeve (81); a cleaning brush (82) is arranged on the inner side wall of the sleeve (81), one end of the sleeve (81) extends to the outside of the sleeve (8), and a gear ring (83) is fixedly connected on the outer peripheral surface of the sleeve (81) extending to the outside of the sleeve (8); the top surface of the base (1) is provided with a driving mechanism (9) which can drive the gear ring (83) to rotate.
9. The power line detection apparatus for distributed photovoltaic power generation according to claim 8, wherein: the driving mechanism (9) comprises a first rotating shaft (91) and a second rotating shaft (92); the first rotating shaft (91) is rotationally connected to the top surface of the base (1), a spur gear (911) meshed with the gear ring (83) is fixedly connected to the outer side wall of the end part, close to the gear ring (83), of the first rotating shaft (91), and a first bevel gear (912) is fixedly connected to the outer side wall of the end part, far from the spur gear (911), of the first rotating shaft (91); the second rotating shaft (92) is rotatably connected to the top surface of the base (1), and a second bevel gear (921) meshed with the first bevel gear (912) is fixedly connected to the outer side wall of the end part of the second rotating shaft (92) close to the first bevel gear (912); the end part of the unreeling roller (52) far away from the first motor (51) is provided with a transmission assembly (93) which can enable the unreeling roller (52) to drive the second rotating shaft (92) to rotate.
10. The power line detection apparatus for distributed photovoltaic power generation according to claim 9, wherein: the transmission assembly (93) comprises a first pulley (931), a second pulley (932) and a belt (933); the first belt wheel (931) is fixedly connected to the end part of the unreeling roller (52) far away from the first motor (51); the second belt wheel (932) is fixedly connected to the end part of the second rotating shaft (92) far away from the second bevel gear (921); the belt (933) is sleeved outside the first belt wheel (931) and the second belt wheel (932), and the belt (933) enables the first belt wheel (931) and the second belt wheel (932) to be linked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310692483.5A CN116736053A (en) | 2023-06-12 | 2023-06-12 | Power line detection device for distributed photovoltaic power generation |
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| CN202310692483.5A CN116736053A (en) | 2023-06-12 | 2023-06-12 | Power line detection device for distributed photovoltaic power generation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117054432A (en) * | 2023-10-12 | 2023-11-14 | 国网辽宁省电力有限公司 | Power cable damage detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117054432A (en) * | 2023-10-12 | 2023-11-14 | 国网辽宁省电力有限公司 | Power cable damage detection device |
| CN117054432B (en) * | 2023-10-12 | 2023-12-19 | 国网辽宁省电力有限公司 | Power cable damage detection device |
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